CN113556795A - Method for determining first-time forwarding equipment, related device and computer storage medium - Google Patents
Method for determining first-time forwarding equipment, related device and computer storage medium Download PDFInfo
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- CN113556795A CN113556795A CN202110819313.XA CN202110819313A CN113556795A CN 113556795 A CN113556795 A CN 113556795A CN 202110819313 A CN202110819313 A CN 202110819313A CN 113556795 A CN113556795 A CN 113556795A
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W40/00—Communication routing or communication path finding
- H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
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Abstract
The application provides a method for determining a first-time forwarding device, a related device and a computer storage medium, wherein a Linear Frequency Modulation (LFM) signal is added in a first-time judgment signal, and the anti-interference and anti-noise characteristics of the LFM signal are utilized to judge whether each sub-window comprises the LFM signal or not by aiming at each sub-window in the first-time judgment signal after the first-time judgment signal is received; wherein the first target sub-window is a sub-window containing an LFM signal. And further, the purpose of accurately determining the first forwarding equipment is achieved.
Description
Technical Field
The present application relates to the field of wireless communications technologies, and in particular, to a method for determining a first forwarding device, a related apparatus, and a computer storage medium.
Background
Currently, during the application of ad hoc network products, a terminal may be simultaneously in the overlapping coverage area of a plurality of wireless ad hoc network forwarding devices. If a plurality of wireless ad hoc network devices transmit at the same time, the same frequency and broadcasting can be caused. Therefore, the unique selection of the first-time forwarding device is crucial.
In the prior art, the first forwarding device is usually determined and selected according to the signal energy of the first determination signal. However, only when the signal energy of the first-transmission judging signal is far larger than the background noise, the first-transmission forwarding device can be accurately judged and selected. Moreover, the high power and long time of the primary decision signal can also influence other services.
Disclosure of Invention
In view of the above, the present application provides a method for determining a first-time forwarding device, a related apparatus, and a computer storage medium, which are used to accurately determine the first-time forwarding device.
A first aspect of the present application provides a method for determining a first forwarding device, including:
receiving an initial selection signal; wherein the first decision signal comprises a linear frequency modulation LFM signal; the first-sending judging and selecting signal consists of a plurality of sub-windows; each sub-window corresponds to a wireless ad hoc network forwarding device;
for each sub-window, judging whether the sub-window contains an LFM signal;
if the sub-window contains an LFM signal, taking the sub-window as a first target sub-window;
and if only one first target sub-window exists in the initial selection signal, determining that the wireless ad hoc network forwarding device corresponding to the first target sub-window is a first-time forwarding device.
Optionally, the determining, for each of the sub-windows, whether the sub-window contains an LFM signal includes:
for each sub-window, judging whether the average energy of all the sub-windows is smaller than an energy threshold value;
determining that the sub-window does not contain an LFM signal if the average energy of all of the sub-windows is not less than the energy threshold;
if the average energy of all the sub-windows is smaller than the energy threshold value, determining an energy indication value of the sub-window;
judging whether the energy indication value of the sub-window is larger than a threshold value;
if the energy indication value of the sub-window is larger than the threshold value, determining that the sub-window contains an LFM signal;
and if the energy indication value of the sub-window is not larger than the threshold value, determining that the sub-window does not contain an LFM signal.
Optionally, if the average energy of all the sub-windows is smaller than the energy threshold, determining an energy indication value of the sub-window includes:
performing matched filtering on each field intensity indicating window in the sub-windows to obtain the maximum filtering value of each field intensity indicating window;
determining an energy indicated value of each field intensity indicating window according to the maximum filtering value of all the field intensity indicating windows;
and taking the maximum value in the energy indication values of all the field intensity indication windows as the energy indication value of the sub-window.
Optionally, the determining an energy indication value of each field strength indication window according to the maximum filtered value of all the field strength indication windows includes:
taking the ratio of the maximum filtering value of the first field intensity indicating window to the target filtering value as the energy indicating value of the first field intensity indicating window; the first field intensity indicating window is any one of the sub-windows; the target filtering value is the average value of the maximum filtering values of all the second field intensity indication windows; the second field intensity indicating window is any one of the sub-windows except the first field intensity indicating window.
Optionally, each field intensity indication window corresponds to a field intensity indication, where the field intensity indication represents a field intensity high, a field intensity medium, or a field intensity low, and the method for determining the first-time forwarding device further includes:
if a plurality of first target sub-windows exist in the initial selection signal, determining a target field intensity indication window for each first target sub-window; wherein, the target field intensity indicating window is a field intensity indicating window where the LFM signal is located in the first target sub-window;
determining the wireless ad hoc network forwarding equipment corresponding to the second target sub-window as first-time forwarding equipment; and the second target sub-window is a target sub-window to which a target field intensity indicating window with high field intensity belongs.
Optionally, each sub-window corresponds to an identifier, and the method for determining a first-time forwarding device further includes:
and if a plurality of second target sub-windows exist, determining the wireless ad hoc network forwarding device corresponding to the second target sub-window with the largest identifier in the plurality of second target sub-windows as a first forwarding device.
Optionally, each sub-window corresponds to an identifier, and the method for determining a first-time forwarding device further includes:
and if a plurality of second target sub-windows exist, determining the wireless ad hoc network forwarding device corresponding to the second target sub-window with the smallest identifier in the plurality of second target sub-windows as a first forwarding device.
A second aspect of the present application provides an apparatus for determining a first forwarding device, including:
a receiving unit, configured to receive an initial selection signal; wherein the first decision signal comprises a linear frequency modulation LFM signal; the first-sending judging and selecting signal consists of a plurality of sub-windows; each sub-window corresponds to a wireless ad hoc network forwarding device;
a determining unit, configured to determine, for each of the sub-windows, whether the sub-window includes an LFM signal;
a first determining unit, configured to, if the sub-window includes an LFM signal, take the sub-window as a first target sub-window;
a second determining unit, configured to determine, if there is only one first target sub-window in the first-sending selection signal, that the wireless ad hoc network forwarding device corresponding to the first target sub-window is a first-time forwarding device.
Optionally, the determining unit includes:
a first determining subunit, configured to determine, for each of the sub-windows, whether an average energy of all of the sub-windows is smaller than an energy threshold;
a third determining unit, configured to determine that the sub-window does not include an LFM signal if the first determining unit determines that the average energy of all the windows in the sub-window is not less than the energy threshold;
a fourth determining unit, configured to determine an energy indication value of the sub-window if the average energy of all windows in the sub-window is smaller than the energy threshold value, as determined by the first determining unit;
the second judgment subunit is used for judging whether the energy indication value of the sub-window is greater than a threshold value;
the third determining unit is further configured to determine that the sub-window includes an LFM signal if the second determining unit determines that the energy indication value of the sub-window is greater than the threshold value;
the third determining unit is further configured to determine that the sub-window does not include an LFM signal if the second determining unit determines that the energy indication value of the sub-window is not greater than the threshold.
Optionally, each of the sub-windows includes at least two protection spacing windows and a plurality of field strength indication windows; the fourth determination unit includes:
the matched filtering unit is used for performing matched filtering on each field intensity indicating window in the sub-windows to obtain the maximum filtering value of the field intensity indicating window;
the energy indicated value determining unit is used for determining the energy indicated value of each field intensity indicating window according to the maximum filtering value of all the field intensity indicating windows;
and the fourth determining subunit is further configured to use a maximum value of the energy indication values of all the field intensity indication windows as the energy indication value of the sub-window.
Optionally, the energy indication value determining unit includes:
the energy indicated value determining subunit is used for taking the ratio of the maximum filtering value of the first field intensity indicating window to the target filtering value as the energy indicated value of the first field intensity indicating window; the first field intensity indicating window is any one of the sub-windows; the target filtering value is the average value of the maximum filtering values of all the second field intensity indication windows; the second field intensity indicating window is any one of the sub-windows except the first field intensity indicating window.
Optionally, each field intensity indication window corresponds to a field intensity indication, where the field intensity indication represents a field intensity high or a field intensity medium or a field intensity low, and the apparatus for determining a first forwarding device further includes:
a fifth determining unit, configured to determine, if there are multiple first target sub-windows in the initial selection signal, a target field strength indication window for each first target sub-window; wherein, the target field intensity indicating window is a field intensity indicating window where the LFM signal is located in the first target sub-window;
a sixth determining unit, configured to determine, as a first forwarding device, the wireless ad hoc network forwarding device corresponding to the second target sub-window; and the second target sub-window is a target sub-window to which a target field intensity indicating window with high field intensity belongs.
Optionally, each sub-window corresponds to an identifier, and the determining apparatus of the first forwarding device further includes:
a seventh determining unit, configured to determine, if there are multiple second target sub-windows, a wireless ad hoc network forwarding device corresponding to a second target sub-window with a largest identifier in the multiple second target sub-windows as a first forwarding device.
Optionally, each sub-window corresponds to an identifier, and the determining apparatus of the first forwarding device further includes:
and an eighth determining unit, configured to determine, if there are multiple second target sub-windows, a wireless ad hoc network forwarding device corresponding to a second target sub-window with a smallest identifier in the multiple second target sub-windows as a first forwarding device.
A third aspect of the present application provides an electronic device comprising:
one or more processors;
a storage device having one or more programs stored thereon;
the one or more programs, when executed by the one or more processors, cause the one or more processors to implement the method of determining a first-time forwarding device according to any one of the first aspect.
A fourth aspect of the present application provides a computer storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the method for determining a first-time forwarding device according to any one of the first aspect.
According to the above scheme, in the determining method of the first-time forwarding device, the related apparatus and the computer storage medium provided by the present application, a Linear Frequency Modulation (LFM) signal is added to the first-time decision signal, and the characteristics of anti-interference and anti-noise of the LFM signal in a time domain are utilized, so that after the first-time decision signal is received, whether the sub-window includes the LFM signal or not can be determined by aiming at each sub-window in the first-time decision signal, and the wireless ad-hoc network forwarding device corresponding to the sub-window including the LFM signal is determined as the first-time forwarding device. And further, the purpose of accurately determining the first forwarding equipment is achieved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a detailed flowchart of a method for determining a first-time forwarding device according to an embodiment of the present application;
fig. 2 is a schematic diagram of an LFM signal according to another embodiment of the present application;
fig. 3 is a flowchart of a method for determining whether a sub-window contains an LFM signal according to another embodiment of the present application;
FIG. 4 is a schematic diagram of a waveform for energy spill-over according to another embodiment of the present application;
fig. 5 is a schematic diagram of an initial selection signal according to another embodiment of the present application;
fig. 6 is a flowchart of a method for determining an energy indication value of a sub-window according to another embodiment of the present application;
fig. 7 is a schematic diagram of a determining apparatus of a first-time forwarding device according to another embodiment of the present application;
fig. 8 is a schematic diagram of a determining unit according to another embodiment of the present application;
fig. 9 is a schematic diagram of a fourth determining unit according to another embodiment of the present application;
fig. 10 is a schematic diagram of an electronic device for implementing a method for determining a first-time forwarding device according to another embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first", "second", and the like, referred to in this application, are only used for distinguishing different devices, modules or units, and are not used for limiting the order or interdependence of functions performed by these devices, modules or units, but the terms "include", or any other variation thereof are intended to cover a non-exclusive inclusion, so that a process, method, article, or apparatus that includes a series of elements includes not only those elements but also other elements that are not explicitly listed, or includes elements inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
An embodiment of the present application provides a method for determining a first-time forwarding device, as shown in fig. 1, specifically including the following steps:
s101, receiving a first-sending judging signal.
Wherein, the first decision signal includes a Linear Frequency Modulation (LFM) signal, and fig. 2 is a schematic diagram of the LFM signal; the first-sending judging and selecting signal consists of a plurality of sub-windows; each sub-window corresponds to a wireless ad hoc network forwarding device.
S102, judging whether the sub-window contains the LFM signal or not aiming at each sub-window.
Optionally, in another embodiment of the present application, an implementation manner of step S102, as shown in fig. 3, includes:
s301, judging whether the average energy of all the sub-windows is smaller than an energy threshold value or not for each sub-window.
The energy threshold is preset by a technician according to an actual application scenario, an application situation, and the like, and in an actual application process, the energy threshold may be set and modified, which is not limited herein.
It should be noted that one sub-window may include multiple windows, and the calculation method of the energy of each window is very diverse and mature, which is not described herein again.
Specifically, if it is determined that the average energy of all the windows in the sub-windows is not less than the energy threshold, it indicates that the signal energy in the current sub-window is too large, and the specific waveform may be as shown in fig. 4, and exceeds an Analog-to-Digital Converter (ADC) linear interval, it may be determined that the current sub-window does not include the LFM signal, that is, step S302; if the average energy of all the sub-windows is smaller than the energy threshold, the current sub-window may contain the LFM signal, and then step S303 is executed.
And S302, determining that the sub-window does not contain the LFM signal.
S303, determining the energy indicating value of the sub-window.
In order to avoid that waveforms between different sub-windows mutually affect each other in a climbing process, each sub-window is composed of at least two protection interval windows and a plurality of field strength indication windows, as shown in fig. 5, which is a schematic diagram of a certain initial decision signal, the initial decision signal totally contains 30ms and totally contains 6 sub-windows, each sub-window contains 5 sub-frames of 1ms, wherein 2 sub-frames of 1ms on both sides of the sub-window are protection interval windows (blank), and 3 sub-frames of 1ms in the middle are field strength indication windows (A, B, C), so that, in another embodiment of the present application, an implementation manner of step S303, as shown in fig. 6, includes:
s601, performing matched filtering on each field intensity indicating window in the sub-windows to obtain the maximum filtering value of the field intensity indicating window.
It should be noted that the way of performing matched filtering on the time slots is quite mature, and is not described herein.
S602, determining an energy indicated value of each field strength indicating window according to the maximum filtering values of all field strength indicating windows.
Optionally, in another embodiment of the present application, an implementation manner of step S602 specifically includes:
and taking the ratio of the maximum filtering value of the first field strength indication window to the target filtering value as the energy indication value of the first field strength indication window.
The first field intensity indicating window is any one of the sub-windows; the target filtering value is the average value of the maximum filtering values of all the second field intensity indicating windows; the second field intensity indicating window is any one of the sub-windows except the first field intensity indicating window.
Continuing with the above example, taking the example of calculating the energy indicated value of the field intensity indicating window a, the energy indicated value of the field intensity indicating window a is 2 × the maximum filter value of the field intensity indicating window a/the maximum filter value of the field intensity indicating window B + the maximum filter value of the field intensity indicating window C. Similarly, the energy indicated value of the field strength indicating window B is 2 ×, the maximum filter value of the field strength indicating window B/the maximum filter value of the field strength indicating window a + the maximum filter value of the field strength indicating window C; the energy indicated value of the field strength indicating window C is 2 ×, the maximum filtering value of the field strength indicating window C/the maximum filtering value of the field strength indicating window B + the maximum filtering value of the field strength indicating window a.
And S603, taking the maximum value in the energy indication values of the field intensity indication windows as the energy indication value of the sub-window.
Continuing with the above example, if the energy indication value of field strength indication window a in sub-window 0 is 1, the energy indication value of field strength indication window B is 2, and the energy indication value of field strength indication window C is 3, then the energy indication value of sub-window 0 is 3.
S304, judging whether the energy indicating value of the sub-window is larger than a threshold value.
The threshold is obtained through simulation calculation, a ratio of a large number of signals after matching and filtering under the noise condition is simulated through simulation, and the threshold is finally obtained.
Specifically, if the energy indication value of the sub-window is determined to be greater than the threshold, step S305 is executed; if the energy indication value of the sub-window is not greater than the threshold value, step S302 is executed.
And S305, determining that the sub-window contains the LFM signal.
And S103, if the sub-window contains the LFM signal, taking the sub-window as a first target sub-window.
And S104, if only one first target sub-window exists in the first-sending judging and selecting signal, determining the wireless ad hoc network forwarding device corresponding to the first target sub-window as a first-time forwarding device.
Optionally, in another embodiment of the present application, if a plurality of sub-windows all include LFM signals, that is, there are a plurality of first target sub-windows, the first forwarding device may be determined according to field intensity indications corresponding to the field intensity indication windows, where the field intensity indications represent high field intensity, medium field intensity, or low field intensity, and then an implementation manner of the method for determining a first forwarding device further includes:
and determining a target field intensity indication window for each first target sub-window.
The target field intensity indicating window is a field intensity indicating window where the LFM signal is located in the first target sub-window.
Specifically, the target field strength indication window may also be understood as a field strength indication window in which the energy indication value of the field strength indication window in the sub-window is the largest and the energy indication value is greater than the threshold value in the above embodiment.
And determining the wireless ad hoc network forwarding equipment corresponding to the second target sub-window as first forwarding equipment.
And the second target sub-window is a target sub-window to which the target field intensity indicating window with high field intensity belongs.
As shown in fig. 5, if the first-time decision signal is received, the field intensity indication corresponding to the target field intensity indication window of the sub-window 0 is field intensity low, the field intensity indication corresponding to the target field intensity indication window of the sub-window 1 is field intensity low, the field intensity indication corresponding to the target field intensity indication window of the sub-window 2 is field intensity medium, the field intensity indication corresponding to the target field intensity indication window of the sub-window 3 is field intensity high, the field intensity indication corresponding to the target field intensity indication window of the sub-window 4 is field intensity low, and the field intensity indication corresponding to the target field intensity indication window of the sub-window 5 is field intensity low. Then, the sub-window 3 is a second target sub-window, and the wireless ad hoc network forwarding device corresponding to the sub-window 3 is determined as a first forwarding device.
Optionally, in another embodiment of the present application, if there are multiple second target sub-windows, the first forwarding device may be determined according to an identifier corresponding to the target sub-window, and an implementation manner of the method for determining the first forwarding device further includes:
and determining the wireless ad hoc network forwarding equipment corresponding to the second target sub-window with the largest identifier in the plurality of second target sub-windows as first-time forwarding equipment.
As shown in fig. 5, if the first-time decision signal is received, the field intensity indication corresponding to the target field intensity indication window of the sub-window 0 is field intensity low, the field intensity indication corresponding to the target field intensity indication window of the sub-window 1 is field intensity low, the field intensity indication corresponding to the target field intensity indication window of the sub-window 2 is field intensity medium, the field intensity indication corresponding to the target field intensity indication window of the sub-window 3 is field intensity high, the field intensity indication corresponding to the target field intensity indication window of the sub-window 4 is field intensity high, and the field intensity indication corresponding to the target field intensity indication window of the sub-window 5 is field intensity low. Then, the sub-window 3 is a second target sub-window, and the wireless ad hoc network forwarding device corresponding to the sub-window 3 is determined as a first forwarding device.
Similarly, in another embodiment of the present application, the wireless ad hoc network forwarding device corresponding to the second target sub-window with the smallest identifier in the plurality of second target sub-windows may also be determined as a first-time forwarding device, which is not limited herein.
As shown in fig. 5, if the first-time decision signal is received, the field intensity indication corresponding to the target field intensity indication window of the sub-window 0 is field intensity low, the field intensity indication corresponding to the target field intensity indication window of the sub-window 1 is field intensity low, the field intensity indication corresponding to the target field intensity indication window of the sub-window 2 is field intensity medium, the field intensity indication corresponding to the target field intensity indication window of the sub-window 3 is field intensity high, the field intensity indication corresponding to the target field intensity indication window of the sub-window 4 is field intensity high, and the field intensity indication corresponding to the target field intensity indication window of the sub-window 5 is field intensity low. Then, the sub-window 4 is a second target sub-window, and the wireless ad hoc network forwarding device corresponding to the sub-window 4 is determined as a first forwarding device.
According to the above scheme, in the method for determining the first-time forwarding device provided by the present application, a Linear Frequency Modulation (LFM) signal is added to the first-time determination signal, and the characteristics of anti-interference and anti-noise of the LFM signal, that is, the high resolution of the time domain are utilized, so that after the first-time determination signal is received, whether a sub-window includes the LFM signal or not can be determined by aiming at each sub-window in the first-time determination signal, and if only one first target sub-window exists in the first-time determination signal, the wireless ad hoc network forwarding device corresponding to the first target sub-window is determined as the first-time forwarding device; the first target sub-window is a sub-window containing an LFM signal, and therefore the purpose of accurately determining the first forwarding equipment is achieved.
Another embodiment of the present application provides a device for determining a first-time forwarding device, as shown in fig. 7, specifically including:
a receiving unit 701, configured to receive the initial selection signal.
The first-sending judging and selecting signal comprises a linear frequency modulation LFM signal; the first-sending judging and selecting signal consists of a plurality of sub-windows; each sub-window corresponds to a wireless ad hoc network forwarding device.
A determining unit 702 is configured to determine, for each sub-window, whether the sub-window includes an LFM signal.
Optionally, in another embodiment of the present application, an implementation manner of the determining unit 702, as shown in fig. 8, includes:
a first determining subunit 801, configured to determine, for each sub-window, whether an average energy of all windows in the sub-window is smaller than an energy threshold.
A third determining unit 802, configured to determine that the sub-window does not include the LFM signal if the first determining sub-unit 801 determines that the average energy of all windows in the sub-window is not less than the energy threshold.
A fourth determining unit 803, configured to determine the energy indication value of the sub-window if the first determining sub-unit 801 determines that the average energy of all windows in the sub-window is smaller than the energy threshold.
Optionally, in another embodiment of the present application, an implementation manner of the fourth determining unit 803, as shown in fig. 9, includes:
and a matched filtering unit 901, configured to perform matched filtering on each field strength indication window in the sub-windows to obtain a maximum filtering value of the field strength indication window.
An energy indication value determining unit 902, configured to determine an energy indication value of each field strength indication window according to the maximum filtered value of all field strength indication windows.
Optionally, in another embodiment of the present application, an implementation manner of the energy indicator value determining unit 902 includes:
and the energy indicated value determining subunit is used for taking the ratio of the maximum filtering value of the first field strength indicating window to the target filtering value as the energy indicated value of the first field strength indicating window.
The first field intensity indicating window is any one of the sub-windows; the target filtering value is the average value of the maximum filtering values of all the second field intensity indicating windows; the second field intensity indicating window is any one of the sub-windows except the first field intensity indicating window.
The fourth determining subunit 903 is further configured to use the maximum value of the energy indication values of all field strength indication windows as the energy indication value of the sub-window.
For a specific working process of the unit disclosed in the above embodiment of the present application, reference may be made to the content of the corresponding method embodiment, as shown in fig. 6, which is not described herein again.
A second determining subunit 804, configured to determine whether the energy indication value of the sub-window is greater than a threshold.
The second determining unit 802 is further configured to determine that the sub-window includes the LFM signal if the second determining unit 804 determines that the energy indication value of the sub-window is greater than the threshold.
The third determining unit 802 is further configured to determine that the sub-window does not include the LFM signal if the second determining subunit 804 determines that the energy indication value of the sub-window is not greater than the threshold.
For a specific working process of the unit disclosed in the above embodiment of the present application, reference may be made to the content of the corresponding method embodiment, as shown in fig. 3, which is not described herein again.
A first determining unit 703 is configured to determine the sub-window as a first target sub-window if the sub-window includes the LFM signal.
A second determining unit 704, configured to determine, if there is only one first target sub-window in the first-sent selection signal, that the wireless ad hoc network forwarding device corresponding to the first target sub-window is a first-time forwarding device.
For a specific working process of the unit disclosed in the above embodiment of the present application, reference may be made to the content of the corresponding method embodiment, as shown in fig. 1, which is not described herein again.
Optionally, in another embodiment of the present application, each field strength indication window corresponds to a field strength indication, and the field strength indication represents high field strength or medium field strength or low field strength, and an implementation manner of the apparatus for determining a first-time forwarding device further includes:
and the fifth determining unit is used for determining a target field intensity indicating window aiming at each first target sub-window if a plurality of first target sub-windows exist in the first-sending judging and selecting signal.
The target field intensity indicating window is a field intensity indicating window where the LFM signal is located in the first target sub-window.
And a sixth determining unit, configured to determine, as the first forwarding device, the wireless ad hoc network forwarding device corresponding to the second target sub-window.
And the second target sub-window is a target sub-window to which the target field intensity indicating window with high field intensity belongs.
For specific working processes of the units disclosed in the above embodiments of the present application, reference may be made to the contents of the corresponding method embodiments, which are not described herein again.
Optionally, in another embodiment of the present application, each sub-window corresponds to an identifier, and an implementation manner of the determining apparatus of the first-time forwarding device further includes:
and a seventh determining unit, configured to determine, if there are multiple second target sub-windows, a wireless ad hoc network forwarding device corresponding to a second target sub-window with a largest identifier in the multiple second target sub-windows as a first-time forwarding device.
For specific working processes of the units disclosed in the above embodiments of the present application, reference may be made to the contents of the corresponding method embodiments, which are not described herein again.
Optionally, in another embodiment of the present application, each sub-window corresponds to an identifier, and an implementation manner of the determining apparatus of the first-time forwarding device further includes:
and an eighth determining unit, configured to determine, if there are multiple second target sub-windows, a wireless ad hoc network forwarding device corresponding to a second target sub-window with a smallest identifier in the multiple second target sub-windows as a primary forwarding device.
For specific working processes of the units disclosed in the above embodiments of the present application, reference may be made to the contents of the corresponding method embodiments, which are not described herein again.
As can be seen from the above solutions, in the apparatus for determining a first-time forwarding device provided in the present application, a Linear Frequency Modulation (LFM) signal is added to a first-time determination signal, and by using the characteristics of anti-interference and anti-noise of the LFM signal and high resolution of a time domain, after a receiving unit 701 receives the first-time determination signal, a determining unit 702 may determine whether each sub-window in the first-time determination signal includes an LFM signal, and a first determining unit 703 takes the sub-window including the LFM signal as a first target sub-window. If there is only one first target sub-window in the first-sending selection signal, the second determining unit 704 determines that the wireless ad hoc network forwarding device corresponding to the first target sub-window is the first-time forwarding device. And further, the purpose of accurately determining the first forwarding equipment is achieved.
Another embodiment of the present application provides an electronic device, as shown in fig. 10, including:
one or more processors 1001.
When executed by the one or more processors 1001, the one or more programs cause the one or more processors 1001 to implement the method for determining a first-time forwarding device as described in any one of the above embodiments.
Another embodiment of the present application provides a computer storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the method for determining a first-time forwarding device as described in any one of the above embodiments.
In the above embodiments disclosed in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The apparatus and method embodiments described above are illustrative only, as the flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In addition, functional modules in the embodiments of the present disclosure may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part. The functions, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present disclosure may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a live broadcast device, or a network device) to execute all or part of the steps of the method according to the embodiments of the present disclosure. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
Those skilled in the art can make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A method for determining a first time forwarding device includes:
receiving an initial selection signal; wherein the first decision signal comprises a linear frequency modulation LFM signal; the first-sending judging and selecting signal consists of a plurality of sub-windows; each sub-window corresponds to a wireless ad hoc network forwarding device;
for each sub-window, judging whether the sub-window contains an LFM signal;
if the sub-window contains an LFM signal, taking the sub-window as a first target sub-window;
and if only one first target sub-window exists in the initial selection signal, determining that the wireless ad hoc network forwarding device corresponding to the first target sub-window is a first-time forwarding device.
2. The method of claim 1, wherein said determining whether said sub-window contains an LFM signal for each of said sub-windows comprises:
for each sub-window, judging whether the average energy of all the sub-windows is smaller than an energy threshold value;
determining that the sub-window does not contain an LFM signal if the average energy of all of the sub-windows is not less than the energy threshold;
if the average energy of all the sub-windows is smaller than the energy threshold value, determining an energy indication value of the sub-window;
judging whether the energy indication value of the sub-window is larger than a threshold value;
if the energy indication value of the sub-window is larger than the threshold value, determining that the sub-window contains an LFM signal;
and if the energy indication value of the sub-window is not larger than the threshold value, determining that the sub-window does not contain an LFM signal.
3. The method of claim 2, wherein determining the energy indicator value for the sub-window if the average energy of all of the sub-windows is less than the energy threshold comprises:
performing matched filtering on each field intensity indicating window in the sub-windows to obtain the maximum filtering value of each field intensity indicating window;
determining an energy indicated value of each field intensity indicating window according to the maximum filtering value of all the field intensity indicating windows;
and taking the maximum value in the energy indication values of all the field intensity indication windows as the energy indication value of the sub-window.
4. The method of claim 3, wherein said determining an energy indicator value for each of said field strength indication windows from a maximum filtered value of all of said field strength indication windows comprises:
taking the ratio of the maximum filtering value of the first field intensity indicating window to the target filtering value as the energy indicating value of the first field intensity indicating window; the first field intensity indicating window is any one of the sub-windows; the target filtering value is the average value of the maximum filtering values of all the second field intensity indication windows; the second field intensity indicating window is any one of the sub-windows except the first field intensity indicating window.
5. The method of claim 3, wherein each field strength indication window corresponds to a field strength indication, the field strength indication being representative of high field strength or medium field strength or low field strength, the method of determining the first-time repeater further comprising:
if a plurality of first target sub-windows exist in the initial selection signal, determining a target field intensity indication window for each first target sub-window; wherein, the target field intensity indicating window is a field intensity indicating window where the LFM signal is located in the first target sub-window;
determining the wireless ad hoc network forwarding equipment corresponding to the second target sub-window as first-time forwarding equipment; and the second target sub-window is a target sub-window to which a target field intensity indicating window with high field intensity belongs.
6. The method of claim 5, wherein each sub-window corresponds to an identifier, and the method for determining the first-time forwarding device further comprises:
and if a plurality of second target sub-windows exist, determining the wireless ad hoc network forwarding device corresponding to the second target sub-window with the largest identifier in the plurality of second target sub-windows as a first forwarding device.
7. The method of claim 5, wherein each sub-window corresponds to an identifier, and the method for determining the first-time forwarding device further comprises:
and if a plurality of second target sub-windows exist, determining the wireless ad hoc network forwarding device corresponding to the second target sub-window with the smallest identifier in the plurality of second target sub-windows as a first forwarding device.
8. An apparatus for determining a first time forwarding device, comprising:
a receiving unit, configured to receive an initial selection signal; wherein the first decision signal comprises a linear frequency modulation LFM signal; the first-sending judging and selecting signal consists of a plurality of sub-windows; each sub-window corresponds to a wireless ad hoc network forwarding device;
a determining unit, configured to determine, for each of the sub-windows, whether the sub-window includes an LFM signal;
a first determining unit, configured to, if the sub-window includes an LFM signal, take the sub-window as a first target sub-window;
a second determining unit, configured to determine, if there is only one first target sub-window in the first-sending selection signal, that the wireless ad hoc network forwarding device corresponding to the first target sub-window is a first-time forwarding device.
9. An electronic device, comprising:
one or more processors;
a storage device having one or more programs stored thereon;
the one or more programs, when executed by the one or more processors, cause the one or more processors to implement the method of determining a first-time forwarding device of any of claims 1-7.
10. A computer storage medium, on which a computer program is stored, wherein the computer program, when executed by a processor, implements the method of determining a first-time forwarding device according to any one of claims 1 to 7.
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