Intercom relay station signal identification method, device, medium and equipment

Abstract

The embodiments of the present application disclose a walkie-talkie repeater signal recognition method, device, medium and equipment, and relate to the field of wireless communication technology. The present application detects through signal spectrum data, and detects the burst signal therein as a detection signal. Since there may be interference of shorter duration in the burst signal, the burst interference is screened out based on the duration to retain the effective burst signal. Since the repeater needs to perform full-duplex communication, its transmission and reception frequency points must meet a certain interval, which can be used as a necessary condition for determining whether the walkie-talkie and the repeater are paired, so as to confirm that the burst signal is the target signal under the pairing combination, and finally accurately identify the walkie-talkie signal and the repeater signal in the burst signal with reference to the start and end time of the signal and the duration.

Description

Technical Field

[0001] The present application relates to the field of wireless communication technology, and in particular to a method, device, medium and equipment for identifying a signal of a walkie-talkie relay station. Background Art

[0002] Intercom repeater is a device used to increase the communication distance of intercom. When the distance between two intercoms exceeds the signal radiation range of the intercom, the intercom will not receive effective signals. At this time, an intercom repeater is needed. The function of the repeater is to forward the received signal and complete the relay between signals.

[0003] Radio interference troubleshooting is one of the daily tasks of the radio monitoring center. Since the setting of illegal repeater stations will interfere with normal signal communications, the intercom repeater station must be identified to further troubleshoot the location of the interference source. Therefore, how to accurately identify the intercom repeater station signal has become an urgent problem to be solved. Summary of the invention

[0004] The main purpose of this application is to provide a method, device, medium and equipment for identifying walkie-talkie relay station signals, aiming to solve the problem of how to accurately identify walkie-talkie relay station signals.

[0005] To achieve the above objectives, the technical solutions adopted in the embodiments of the present application are as follows:

[0006] In a first aspect, an embodiment of the present application provides a method for identifying a signal of a walkie-talkie relay station, comprising the following steps:

[0007] Detect the signal spectrum data, obtain the detection signal and record the burst information; wherein the burst information includes the signal start time and the signal end time;

[0008] Filtering the detection signal based on the duration to obtain a burst signal;

[0009] Confirming that a burst signal in a target burst signal group is a target signal based on a frequency interval; wherein the target burst signal group includes any two burst signals;

[0010] According to the signal start time, signal end time and duration of the target signal, the walkie-talkie signal and the repeater station signal in the target signal are identified.

[0011] In a possible implementation of the first aspect, identifying a walkie-talkie signal and a repeater signal in the target signal according to a signal start time, a signal end time, and a duration of the target signal includes:

[0012] According to the judgment result that the signal start time, signal end time and duration of the target signal meet the preset conditions, the walkie-talkie signal and the repeater station signal in the target signal are identified.

[0013] In a possible implementation of the first aspect, the preset conditions include that the difference between the start times of the target signals is less than a first threshold, the durations are the same, and the difference between the end times of the signals is less than a second threshold;

[0014] Identify intercom and repeater signals in target signals, including:

[0015] The signal that appears first in the target signal is identified as the walkie-talkie signal, and the signal that appears later is the repeater signal.

[0016] In a possible implementation manner of the first aspect, the burst information further includes frequency data and level information;

[0017] After identifying the intercom signal and the relay station signal in the target signal according to the signal start time, signal end time and duration of the target signal, the method further includes:

[0018] Add the frequency data, level information, signal start time and signal end time of the intercom signal and the repeater signal to the signal list;

[0019] Output the frequency data of the repeater signal in the signal list.

[0020] In a possible implementation manner of the first aspect, after adding the frequency data, level information, signal start time, and signal end time of the walkie-talkie signal and the relay station signal to the signal list, the method further includes:

[0021] Determine whether there are walkie-talkie signals and repeater signals with the same frequency data in the signal list;

[0022] If the result of the judgment is yes, the target intercom signal and the target relay station signal are determined according to the level information of the intercom signal and the relay station signal;

[0023] The frequency data of the repeater signal in the output signal list includes:

[0024] Output the frequency data of the target repeater signal in the signal list.

[0025] In a possible implementation of the first aspect, determining a target walkie-talkie signal and a target relay station signal according to level information of the walkie-talkie signal and the relay station signal includes:

[0026] According to the level information of the intercom signal and the repeater signal, the level stability of the intercom signal and the repeater signal is obtained;

[0027] It is determined that the signal with high level stability is the target repeater signal, and the signal with low level stability is the target walkie-talkie signal.

[0028] In a possible implementation manner of the first aspect, confirming that a burst signal in a target burst signal group is a target signal based on a frequency interval includes:

[0029] Determining whether the frequency interval of the burst signal in the target burst signal group is within a preset range;

[0030] If the result of the determination is yes, it is confirmed that the burst signal in the target burst signal group is the target signal.

[0031] In a possible implementation manner of the first aspect, screening the detection signal based on the duration to obtain the burst signal includes:

[0032] Based on the duration, the signals with a duration less than a duration threshold in the detection signals are screened as burst interferences;

[0033] The burst interference is eliminated and the signals whose duration is greater than or equal to the duration threshold are screened in the detection signal to obtain the burst signal.

[0034] In a possible implementation manner of the first aspect, before confirming that a burst signal in a target burst signal group is a target signal based on the frequency interval, the method further includes:

[0035] The burst signals are combined in pairs to obtain several target burst signal groups.

[0036] In a possible implementation manner of the first aspect, detecting signal spectrum data, obtaining a detection signal, and recording burst information includes:

[0037] The signal spectrum data is screened based on the noise floor threshold to obtain the detection signal within the target bandwidth range;

[0038] The detection signal is tracked, and the signal start time and signal end time are recorded as burst information to achieve detection.

[0039] In a possible implementation manner of the first aspect, before filtering the signal spectrum data based on the noise floor threshold to obtain the detection signal within the target bandwidth range, the method further includes:

[0040] According to the resolution of the signal spectrum data, the number of spectrum points corresponding to the target bandwidth range is obtained;

[0041] The frequency band of the signal spectrum data is divided into a plurality of sub-frequency bands according to the target bandwidth, and the minimum number of spectrum points corresponding to each sub-frequency band is determined as the threshold of the sub-frequency band;

[0042] The threshold is corrected according to the correction value to obtain the noise floor threshold.

[0043] In a second aspect, an embodiment of the present application provides a walkie-talkie relay station signal identification device, including:

[0044] The detection module is used to detect the signal spectrum data, obtain the detection signal and record the burst information; wherein the burst information includes the signal start time and the signal end time;

[0045] A screening module, the screening module is used to screen the detection signal based on the duration to obtain a burst signal;

[0046] A confirmation module, the confirmation module is used to confirm that the burst signal in the target burst signal group is the target signal based on the frequency interval; wherein the target burst signal group includes any two burst signals;

[0047] The identification module is used to identify the intercom signal and the relay station signal in the target signal according to the signal start time, signal end time and duration of the target signal.

[0048] In a third aspect, an embodiment of the present application provides a computer-readable storage medium storing a computer program. When the computer program is loaded and executed by a processor, the walkie-talkie relay station signal identification method provided in any one of the first aspects above is implemented.

[0049] In a fourth aspect, an embodiment of the present application provides an electronic device, including a processor and a memory, wherein:

[0050] The memory is used to store computer programs;

[0051] The processor is used to load and execute a computer program so that the electronic device executes the walkie-talkie repeater signal identification method provided in any one of the first aspects above.

[0052] Compared with the prior art, the beneficial effects of this application are:

[0053] The present invention proposes a method, device, medium and equipment for identifying a signal of a walkie-talkie repeater station. The method includes: detecting signal spectrum data, obtaining a detection signal and recording burst information; wherein the burst information includes a signal start time and a signal end time; screening the detection signal based on the duration to obtain a burst signal; confirming that a burst signal in a target burst signal group is a target signal based on a frequency interval; wherein the target burst signal group includes any two burst signals; identifying the walkie-talkie signal and the repeater station signal in the target signal according to the signal start time, signal end time and duration of the target signal. The present invention detects the burst signal as a detection signal through signal spectrum data. Since there may be interference of a short duration in the burst signal, the burst interference is screened out based on the duration to retain the effective burst signal. Since the repeater station needs to perform full-duplex communication, its transceiver frequency point must meet a certain interval, which can be used as a necessary condition for judging whether the walkie-talkie and the repeater station are paired, thereby confirming that the burst signal is a target signal under the pairing combination, and finally accurately identifying the walkie-talkie signal and the repeater station signal in the burst signal with reference to the signal start and end time and duration. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] Figure 1 A schematic diagram of the structure of an electronic device of a hardware operating environment involved in an embodiment of the present application;

[0055] Figure 2 A schematic diagram of a flow chart of a method for identifying a signal of a walkie-talkie relay station provided in an embodiment of the present application;

[0056] Figure 3 A schematic diagram of a flow chart of a walkie-talkie relay station signal identification method provided in an embodiment of the present application in one implementation manner;

[0057] Figure 4 A schematic diagram of a module of a walkie-talkie relay station signal identification device provided in an embodiment of the present application;

[0058] Markings in the figure: 101 - processor, 102 - communication bus, 103 - network interface, 104 - user interface, 105 - memory. DETAILED DESCRIPTION

[0059] It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0060] See attached Figure 1 , attached Figure 1This is a schematic diagram of the structure of an electronic device of the hardware operating environment involved in the embodiment of the present application. The electronic device may include: a processor 101, such as a central processing unit (CPU), a communication bus 102, a user interface 104, a network interface 103, and a memory 105. Among them, the communication bus 102 is used to realize the connection and communication between these components. The user interface 104 may include a display (Display), an input unit such as a keyboard (Keyboard), and the user interface 104 may also include a standard wired interface and a wireless interface. The network interface 103 may optionally include a standard wired interface and a wireless interface (such as a wireless fidelity (WIreless-FIdelity, WI-FI) interface). The memory 105 may optionally be a storage device independent of the aforementioned processor 101. The memory 105 may be a high-speed random access memory (RAM) memory, or it may be a stable non-volatile memory (NVM), such as at least one disk storage. The processor 101 may be a general-purpose processor, including a central processing unit, a network processor, etc., or it may be a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component.

[0061] Those skilled in the art will appreciate that Figure 1 The structure shown in the figure does not constitute a limitation on the electronic device, and may include more or less components than shown in the figure, or combine certain components, or arrange the components differently.

[0062] As attached Figure 1 As shown, the memory 105 as a storage medium may include an operating system, a network communication module, a user interface module, and a walkie-talkie relay station signal recognition device.

[0063] In the attached Figure 1 In the electronic device shown, the network interface 103 is mainly used for data communication with the network server; the user interface 104 is mainly used for data interaction with the user; the processor 101 and the memory 105 in the present application can be set in the electronic device, and the electronic device calls the walkie-talkie relay station signal recognition device stored in the memory 105 through the processor 101, and executes the walkie-talkie relay station signal recognition method provided in the embodiment of the present application.

[0064] See attached Figure 2 Based on the hardware device of the aforementioned embodiment, the embodiment of the present application provides a method for identifying a signal of a walkie-talkie relay station, comprising the following steps:

[0065] S10: Detect the signal spectrum data, obtain the detection signal and record the burst information; wherein the burst information includes the signal start time and the signal end time.

[0066] In the specific implementation process, since the intercom or relay station signals are all burst signals, firstly, based on the signal spectrum data, the burst signals are detected and screened out. These detection signals are regarded as suspected intercom signals or relay station signals, and their burst information such as frequency, average level, signal start time and signal end time can be recorded. Specifically: the signal spectrum data is detected, the detection signal is obtained and the burst information is recorded, including:

[0067] According to the resolution of the signal spectrum data, the number of spectrum points corresponding to the target bandwidth range is obtained;

[0068] The frequency band of the signal spectrum data is divided into a plurality of sub-frequency bands according to the target bandwidth, and the minimum number of spectrum points corresponding to each sub-frequency band is determined as the threshold of the sub-frequency band;

[0069] Correct the threshold according to the correction value to obtain the noise floor threshold;

[0070] The signal spectrum data is screened based on the noise floor threshold to obtain the detection signal within the target bandwidth range;

[0071] The detection signal is tracked, and the signal start time and signal end time are recorded as burst information to achieve detection.

[0072] In the specific implementation process, taking the walkie-talkie signal and the corresponding repeater signal in the two radio frequency bands of 136MHz-174MHz and 400MHz-470MHz in the spectrum scanning data as an example, firstly, according to the resolution Res of the received signal spectrum, the number of spectrum points Num=ceil(25e3 / Res) corresponding to the 25KHz bandwidth is calculated, where ceil() means rounding up, and 25e3 means 25000, that is, the signal width of 25KHz; the received spectrum band is divided into multiple segments according to 25KHz, each segment is recorded as a sub-band, and the minimum number of spectrum points in each sub-band is taken as the threshold of the segment, so as to obtain the background noise of the entire spectrum range, and effectively raise the background noise threshold of the non-walkie-talkie or repeater signal whose bandwidth is greater than the target bandwidth, so as to achieve the purpose of signal screening;

[0073] During detection, first, in order to reduce noise interference, the spectrum within the sliding window length N is averaged. N can be adjusted according to actual data, and the default value can be set to 30. Then, the signal noise floor is estimated based on the mean spectrum. A correction value is added to the estimated noise floor to obtain the corrected noise floor threshold. The correction value is adjusted according to actual data, and the default value can be set to 15. Signals with a bandwidth of about 25KHz, that is, the signal bandwidth of walkie-talkies and repeaters, are screened out. The center frequency, bandwidth, level, signal start and end time and other information of the signals that meet the conditions are recorded to complete a detection. As the sliding window moves at a single point, the above steps are repeated to record the newly added signal information and track the screened signals until the signal disappears. The time when the signal disappears is recorded to complete the detection of burst signals.

[0074] S20: Screening the detection signal based on the duration to obtain a burst signal.

[0075] In the specific implementation process, both the walkie-talkie signal and the repeater signal are burst signals, but burst interference will affect the detection of effective burst signals. Therefore, the detection signals are screened based on the duration, and the signals with too short duration are removed, which are identified as burst interference and can be deleted from the signal data. That is, the detection signals are screened based on the duration to obtain burst signals, including:

[0076] Based on the duration, the signals with a duration less than a duration threshold in the detection signals are screened as burst interferences;

[0077] The burst interference is eliminated and the signals whose duration is greater than or equal to the duration threshold are screened in the detection signal to obtain the burst signal.

[0078] By tracking the signal, we obtain the moment when the signal appears and disappears. While completing the burst detection, we also obtain the duration of the signal. By setting the duration threshold, such as 2 seconds, a signal with a duration of less than 2 seconds is considered as a burst interference and is eliminated. A signal with a duration of greater than or equal to 2 seconds is considered to be a suspected valid burst signal and is retained.

[0079] S30: confirming that the burst signals in the target burst signal group are target signals based on the frequency interval; wherein the target burst signal group includes any two burst signals.

[0080] In the specific implementation process, since the repeater needs to perform full-duplex communication, its receiving and transmitting frequencies must meet a certain interval, so this feature can be used as a necessary condition for judging whether the repeater and the walkie-talkie are paired. If this condition is met, it is considered to be the target signal, that is, suspected to be a repeater signal or a walkie-talkie signal. Specifically: confirming that the burst signal in the target burst signal group is the target signal based on the frequency interval includes:

[0081] Determining whether the frequency interval of the burst signal in the target burst signal group is within a preset range;

[0082] If the result of the determination is yes, it is confirmed that the burst signal in the target burst signal group is the target signal.

[0083] In the specific implementation process, based on the example parameters of the aforementioned embodiment, the frequency interval of the burst signal in a group of target burst signal groups is first determined. If it is within the preset range of 5MHz-12MHz, it can be considered to be a suspected repeater signal or walkie-talkie signal, and then the next group of target burst signal groups is determined. In other embodiments, the preset range can be adjusted according to actual conditions.

[0084] Taking advantage of the characteristics of whether the repeater and the walkie-talkie are paired, the burst signals are combined in pairs to form a target burst signal group. Of course, the premise of pairing is that there are at least two burst signals screened out. Pair and combine N burst signals to obtain That is, before confirming that the burst signal in the target burst signal group is the target signal based on the frequency interval, the method further includes:

[0085] The burst signals are combined in pairs to obtain several target burst signal groups.

[0086] S40: Identify the intercom signal and the repeater signal in the target signal according to the signal start time, signal end time and duration of the target signal.

[0087] In the specific implementation process, after the target signal is determined, the conditions are preset by the signal start time, signal end time and duration, and the specific target signal is determined to be a walkie-talkie signal or a repeater signal by judging whether the burst signal in a target burst signal group meets the preset conditions. That is, according to the signal start time, signal end time and duration of the target signal, the walkie-talkie signal and the repeater signal in the target signal are identified, including:

[0088] According to the judgment result that the signal start time, signal end time and duration of the target signal meet the preset conditions, the walkie-talkie signal and the repeater station signal in the target signal are identified.

[0089] The preset conditions may include: the difference between the start time of the target signal is less than the first threshold, the duration is the same, and the difference between the end time of the signal is less than the second threshold. Among them, the first threshold and the second threshold can be set to 1 second, that is, the difference between the start time of the two paired detected burst signals is less than 1 second, the difference between the end time is less than 1 second, and the duration is the same. If the three requirements are met, it is considered that the preset conditions are met, then it can be considered that the signal that appears first is from the walkie-talkie, that is, the signal that appears first is the walkie-talkie signal, and the signal that appears later is from the repeater, that is, the signal that appears later is the repeater signal, that is: identifying the walkie-talkie signal and the repeater signal in the target signal includes:

[0090] The signal that appears first in the target signal is identified as the walkie-talkie signal, and the signal that appears later is the repeater signal.

[0091] In one embodiment, the burst information also includes frequency data and level information;

[0092] After identifying the intercom signal and the relay station signal in the target signal according to the signal start time, signal end time and duration of the target signal, the method further includes:

[0093] Add the frequency data, level information, signal start time and signal end time of the intercom signal and the repeater signal to the signal list;

[0094] Output the frequency data of the repeater signal in the signal list.

[0095] In the specific implementation process, in order to more clearly identify the signal parameters, after detecting the repeater station signal and the walkie-talkie signal, the signal frequency data, level information, signal start time and signal end time are collected and added to the signal list. The signal is subsequently updated in the list according to the detection results. These data can be used as burst information and can be recorded when the burst signal is detected. Finally, in order to intuitively show the situation of the repeater station signal, the frequency point of the identified repeater station signal is output, so as to confirm whether it is an illegal repeater station and realize the investigation of radio interference.

[0096] In one embodiment, after adding the frequency data, level information, signal start time, and signal end time of the intercom signal and the relay station signal to the signal list, the method further includes:

[0097] Determine whether there are walkie-talkie signals and repeater signals with the same frequency data in the signal list;

[0098] When the result of the determination is yes, the target intercom signal and the target relay station signal are determined according to the level information of the intercom signal and the relay station signal.

[0099] In the specific implementation process, as the detection proceeds, new target burst signal groups are continuously detected, and the corresponding detection results are obtained to update the signal list. It is possible that the same frequency point in the list is identified as both a repeater signal and a walkie-talkie signal. If this happens, it is necessary to further confirm the signal category based on the level information.

[0100] Based on the above steps, the frequency data of the repeater station signal in the output signal list includes:

[0101] Output the frequency data of the target repeater signal in the signal list.

[0102] Specifically: according to the level information of the intercom signal and the repeater signal, the target intercom signal and the target repeater signal are determined, including:

[0103] According to the level information of the intercom signal and the repeater signal, the level stability of the intercom signal and the repeater signal is obtained;

[0104] It is determined that the signal with high level stability is the target repeater signal, and the signal with low level stability is the target walkie-talkie signal.

[0105] In the specific implementation process, the level stability refers to the stability of the level. Since the receiving position is relatively fixed relative to the repeater position, the received level is relatively stable, while the walkie-talkie position is relatively random and the received level value stability is lower. Therefore, the repeater signal and the walkie-talkie signal can be further judged and identified by the level stability.

[0106] In this embodiment, detection is performed through signal spectrum data, and the burst signal therein is detected as the detection signal. Since there may be interference of a short duration in the burst signal, the burst interference is screened out based on the duration to retain the effective burst signal. Since the repeater needs to perform full-duplex communication, its transmit and receive frequencies must meet a certain interval, which can be used as a necessary condition for determining whether the walkie-talkie and the repeater are paired, so as to confirm that the burst signal is the target signal under the pairing combination, and with reference to the start and end time of the signal and the duration, the walkie-talkie signal and the repeater signal in the burst signal can be finally accurately identified.

[0107] Refer to the attached Figure 3 , as attached Figure 3 The overall process of this application is further described below:

[0108] After the identification starts, the signal spectrum is first received, burst signal detection is performed on it and burst information is recorded to complete the detection of suspected signals. Then the burst signals are paired. If pairing is not possible, it means that the number of detected burst signals is insufficient. Then the signal spectrum is received again until burst signal pairing can be achieved. Then further identification of each paired signal is carried out. As the detection proceeds, the pairing results are continuously optimized with the results of real-time detection to accurately identify the repeater signal and the walkie-talkie signal. Finally, the repeater signal is output to obtain its center frequency, bandwidth, level and other parameter information. After the output is completed, the signal identification is completed.

[0109] See attached Figure 4 Based on the same inventive concept as in the above-mentioned embodiment, the embodiment of the present application further provides a walkie-talkie relay station signal identification device, comprising:

[0110] The detection module is used to detect the signal spectrum data, obtain the detection signal and record the burst information; wherein the burst information includes the signal start time and the signal end time;

[0111] A screening module, the screening module is used to screen the detection signal based on the duration to obtain a burst signal;

[0112] A confirmation module, the confirmation module is used to confirm that the burst signal in the target burst signal group is the target signal based on the frequency interval; wherein the target burst signal group includes any two burst signals;

[0113] The identification module is used to identify the intercom signal and the relay station signal in the target signal according to the signal start time, signal end time and duration of the target signal.

[0114] Those skilled in the art should understand that the division of the various modules in the embodiment is only a division of logical functions. In actual application, they can be fully or partially integrated into one or more actual carriers, and these modules can be implemented entirely in the form of software called by a processing unit, or entirely in the form of hardware, or in the form of a combination of software and hardware. It should be noted that each module in the walkie-talkie relay station signal identification device in this embodiment corresponds one-to-one to each step in the walkie-talkie relay station signal identification method in the aforementioned embodiment. Therefore, the specific implementation of this embodiment can refer to the implementation of the aforementioned walkie-talkie relay station signal identification method, which will not be repeated here.

[0115] Based on the same inventive concept as in the aforementioned embodiment, an embodiment of the present application further provides a computer-readable storage medium storing a computer program. When the computer program is loaded and executed by a processor, a walkie-talkie relay station signal identification method as provided in the embodiment of the present application is implemented.

[0116] Based on the same inventive concept as in the above-mentioned embodiment, an embodiment of the present application further provides an electronic device, including a processor and a memory, wherein:

[0117] The memory is used to store computer programs;

[0118] The processor is used to load and execute a computer program so that the electronic device executes the walkie-talkie relay station signal identification method provided in the embodiment of the present application.

[0119] In some embodiments, the computer readable storage medium may be a memory such as FRAM, ROM, PROM, EPROM, EEPROM, flash memory, magnetic surface memory, optical disk, or CD-ROM; or various devices including one or any combination of the above memories. The computer may be various computing devices including intelligent terminals and servers.

[0120] In some embodiments, executable instructions may be in the form of a program, software, software module, script or code, written in any form of programming language (including compiled or interpreted languages, or declarative or procedural languages), and may be deployed in any form, including as a stand-alone program or as a module, component, subroutine or other unit suitable for use in a computing environment.

[0121] As an example, executable instructions may, but need not, correspond to a file in a file system, may be stored as part of a file storing other programs or data, such as in one or more scripts in a HyperText Markup Language (HTML) document, in a single file dedicated to the program in question, or in multiple coordinated files (e.g., files storing one or more modules, subroutines, or code portions).

[0122] By way of example, executable instructions may be deployed to be executed on one computing device, or on multiple computing devices located at one site, or on multiple computing devices distributed across multiple sites and interconnected by a communication network.

[0123] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or system. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or system including the element.

[0124] The serial numbers of the above-mentioned embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.

[0125] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as a read-only memory / random access memory, a magnetic disk, or an optical disk), and includes a number of instructions for enabling a multimedia terminal device (which can be a mobile phone, a computer, a television receiver, or a network device, etc.) to execute the methods described in each embodiment of the present application.

[0126] In summary, the present application provides a walkie-talkie repeater signal identification method, device, medium and equipment, the method comprising: detecting signal spectrum data, obtaining a detection signal and recording burst information; wherein the burst information includes a signal start time and a signal end time; screening the detection signal based on duration to obtain a burst signal; confirming that a burst signal in a target burst signal group is a target signal based on a frequency interval; wherein the target burst signal group includes any two burst signals; identifying a walkie-talkie signal and a repeater signal in the target signal according to the signal start time, signal end time and duration of the target signal. The present application detects through signal spectrum data and detects the burst signal therein as the detection signal. Since there may be interference of shorter duration in the burst signal, the burst interference is screened out based on the duration to retain the effective burst signal. Since the repeater needs to perform full-duplex communication, its transmit and receive frequencies must meet a certain interval, which can be used as a necessary condition for determining whether the walkie-talkie and the repeater are paired, so as to confirm that the burst signal is the target signal under the pairing combination, and finally accurately identify the walkie-talkie signal and the repeater signal in the burst signal with reference to the start and end time of the signal and the duration.

[0127] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A method for identifying a signal of a walkie-talkie relay station, characterized in that: The following steps are involved: Detecting the signal spectrum data, obtaining the detection signal and recording the burst information; wherein the burst information includes the signal start time and the signal end time; Screening the detection signal based on the duration to obtain a burst signal; Confirming that the burst signal in the target burst signal group is a target signal based on the frequency interval; wherein the target burst signal group includes any two of the burst signals; Identify the intercom signal and the repeater signal in the target signal according to the signal start time, the signal end time and the duration of the target signal; The step of identifying the intercom signal and the repeater signal in the target signal according to the signal start time, the signal end time, and the duration of the target signal comprises: According to the judgment result that the signal start time, the signal end time and the duration of the target signal meet the preset conditions, identify the walkie-talkie signal and the repeater signal in the target signal; wherein the preset conditions include that the difference between the signal start time of the target signal is less than a first threshold, the durations are the same, and the difference between the signal end time is less than a second threshold; The step of identifying the intercom signal and the repeater signal in the target signal comprises: It is identified that the signal that appears first in the target signal is a walkie-talkie signal and the signal that appears later is a repeater signal.

2. The intercom relay station signal identification method according to claim 1, characterized in that: The burst information also includes frequency data and level information; After identifying the intercom signal and the repeater signal in the target signal according to the signal start time, the signal end time and the duration of the target signal, the method further includes: Add the frequency data, level information, signal start time and signal end time of the intercom signal and the relay station signal to a signal list; Output the frequency data of the relay station signal in the signal list.

3. The intercom relay station signal identification method according to claim 2, characterized in that: After adding the frequency data, the level information, the signal start time and the signal end time of the intercom signal and the relay station signal to the signal list, the method further includes: Determine whether there are the intercom signal and the relay station signal having the same frequency data in the signal list; If the result of the judgment is yes, determining the target intercom signal and the target relay station signal according to the level information of the intercom signal and the relay station signal; The outputting of the frequency data of the relay station signal in the signal list includes: Output the frequency data of the target relay station signal in the signal list.

4. The intercom relay station signal identification method according to claim 3, characterized in that: The step of determining a target intercom signal and a target relay station signal according to the level information of the intercom signal and the relay station signal comprises: According to the level information of the intercom signal and the relay station signal, obtaining the level stability of the intercom signal and the relay station signal; It is determined that the signal with high level stability is the target repeater signal, and the signal with low level stability is the target intercom signal.

5. The intercom relay station signal identification method according to claim 1, characterized in that: The step of confirming that the burst signal in the target burst signal group is a target signal based on the frequency interval includes: Determining whether the frequency interval of the burst signal in the target burst signal group is within a preset range; If the result of the determination is yes, the burst signal in the target burst signal group is confirmed to be a target signal.

6. The intercom relay station signal identification method according to claim 1, characterized in that: The step of screening the detection signal based on the duration to obtain a burst signal includes: Based on the duration, screening the detection signals whose duration is less than a duration threshold as burst interference; The burst interference is eliminated and signals whose duration is greater than or equal to the duration threshold are screened in the detection signal to obtain a burst signal.

7. The intercom relay station signal identification method according to claim 1, characterized in that: Before confirming that the burst signal in the target burst signal group is a target signal based on the frequency interval, the method further includes: The burst signals are combined in pairs to obtain a plurality of target burst signal groups.

8. The intercom relay station signal identification method according to claim 1, characterized in that: The detecting of the signal spectrum data, obtaining the detection signal and recording the burst information includes: The signal spectrum data is screened based on the noise floor threshold to obtain the detection signal within the target bandwidth range; The detection signal is tracked, and the start time of the signal and the end time of the signal are recorded as burst information to achieve detection.

9. The intercom relay station signal identification method according to claim 8, characterized in that: Before filtering the signal spectrum data based on the noise floor threshold to obtain a detection signal within the target bandwidth range, the method further includes: According to the resolution of the signal spectrum data, obtaining the number of spectrum points corresponding to the target bandwidth range; Dividing the frequency band of the signal spectrum data into a plurality of sub-frequency bands according to the target bandwidth, and determining the minimum number of spectrum points corresponding to each sub-frequency band as the threshold of the sub-frequency band; The threshold is corrected according to the correction value to obtain the background noise threshold.

10. A walkie-talkie repeater signal recognition device, characterized in that: include: A detection module, the detection module is used to detect the signal spectrum data, obtain the detection signal and record the burst information; wherein the burst information includes the signal start time and the signal end time; A screening module, the screening module is used to screen the detection signal based on the duration to obtain a burst signal; A confirmation module, the confirmation module is used to confirm that the burst signal in the target burst signal group is a target signal based on the frequency interval; wherein the target burst signal group includes any two of the burst signals; An identification module, the identification module is used to identify the intercom signal and the relay station signal in the target signal according to the signal start time, the signal end time and the duration of the target signal; The step of identifying the intercom signal and the repeater signal in the target signal according to the signal start time, the signal end time, and the duration of the target signal comprises: According to the judgment result that the signal start time, the signal end time and the duration of the target signal meet the preset conditions, identify the walkie-talkie signal and the repeater signal in the target signal; wherein the preset conditions include that the difference between the signal start time of the target signal is less than a first threshold, the durations are the same, and the difference between the signal end time is less than a second threshold; The step of identifying the intercom signal and the repeater signal in the target signal comprises: It is identified that the signal that appears first in the target signal is a walkie-talkie signal and the signal that appears later is a repeater signal.

11. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is loaded and executed by the processor, the walkie-talkie relay station signal recognition method as described in any one of claims 1-9 is implemented.

12. An electronic device, characterized in that: comprising a processor and a memory, wherein: The memory is used to store computer programs; The processor is used to load and execute the computer program so that the electronic device executes the walkie-talkie relay station signal identification method according to any one of claims 1 to 9.

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