CN110247718B - Frequency selection method and device based on short-wave communication, computer equipment and storage medium - Google Patents
Frequency selection method and device based on short-wave communication, computer equipment and storage medium Download PDFInfo
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- CN110247718B CN110247718B CN201910484298.0A CN201910484298A CN110247718B CN 110247718 B CN110247718 B CN 110247718B CN 201910484298 A CN201910484298 A CN 201910484298A CN 110247718 B CN110247718 B CN 110247718B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/382—Monitoring; Testing of propagation channels for resource allocation, admission control or handover
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- H—ELECTRICITY
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- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/16—Discovering, processing access restriction or access information
Abstract
The invention relates to a frequency selection method, a frequency selection device, computer equipment and a storage medium based on short-wave communication, wherein the method comprises the following steps: determining a communication frequency band corresponding to the communication parameter according to the communication parameter; the communication parameters comprise a communication distance parameter and a communication time parameter; determining an initial calling frequency according to the communication frequency band; the control master station sends an empty data packet to the slave station according to the initial calling frequency; and determining the communication frequency of the master station and the slave station according to the response message sent by the slave station. The method improves the transmission real-time performance of determining the communication frequency and improves the efficiency of determining the communication frequency of the master station and the slave station.
Description
Technical Field
The present invention relates to the field of communications, and in particular, to a frequency selection method and apparatus, a computer device, and a storage medium based on short-wave communications.
Background
Short-wave communication is one of the main means of radio communication, and the short-wave communication mainly adopts a sky-wave communication mode, and the sky-wave communication mode realizes information transmission by means of radio wave reflection by an ionosphere, so that the short-wave communication quality is easily influenced by the ionosphere, and the state of the ionosphere changes with different factors such as regions, seasons, time, solar activities and the like. Therefore, the frequency selection problem of short-wave communication is an important problem for short-wave communication applications.
In the traditional technology, the method for determining the short-wave communication frequency is mainly that in the receiving frequency range of a broadband receiving system, a master station polls to send an initial detection signaling, a slave station waits in an initial receiving window after starting up, if a signal of the master station is received, a response signal is sent to the master station, and a pair of frequencies with the highest grading in the call response process is determined as the optimal communication frequency for receiving and sending the short-wave communication. However, since the short-wave communication belongs to a fast fading channel, the frequency changes rapidly, and if the frequency changes, the link needs to be re-established by detecting after disconnecting, and the optimal communication frequency for receiving and transmitting the short-wave communication is re-determined.
Therefore, the traditional method for determining the short-wave communication frequency has the problem of low transmission real-time performance.
Disclosure of Invention
Based on this, it is necessary to provide a frequency selection method, an apparatus, a computer device and a storage medium based on short-wave communication, aiming at the problem that the traditional method for determining the frequency of short-wave communication has low real-time transmission.
In a first aspect, an embodiment of the present invention provides a frequency selection method based on short-wave communication, where the method includes:
determining a communication frequency band corresponding to the communication parameters according to the communication parameters; the communication parameters comprise a communication distance parameter and a communication time parameter;
determining an initial calling frequency according to the communication frequency band;
the control master station sends a null data packet to the slave station according to the initial calling frequency;
and determining the communication frequency of the master station and the slave station according to the response message sent by the slave station.
Determining a communication frequency band corresponding to the communication parameters according to the communication parameters; the communication parameters comprise a communication distance parameter and a communication time parameter;
determining an initial calling frequency according to the communication frequency band;
the control master station sends an empty data packet to the slave station according to the initial calling frequency;
and determining the communication frequency of the master station and the slave station according to the response message sent by the slave station.
In one embodiment, the determining the communication frequency of the master station and the slave station according to the response message sent by the slave station includes:
judging whether the master station receives the response message;
if so, determining the communication frequency of the master station and the slave station according to the initial call frequency;
if not, updating the initial calling frequency, and determining the communication frequency of the master station and the slave station according to the updated calling frequency.
In one embodiment, the determining the communication frequency of the primary station and the secondary station according to the initial call frequency comprises:
and determining the communication frequency according to the initial calling frequency and a preset communication frequency expansion value.
In one embodiment, the updating the initial call frequency and determining the communication frequency between the primary station and the secondary station according to the updated call frequency include:
determining the next calling frequency corresponding to the initial calling frequency as the updated calling frequency;
controlling the master station to send the null data packet to the slave station according to the updated calling frequency;
and determining the communication frequency of the master station and the slave station according to the response message corresponding to the updated call frequency sent by the slave station.
In one embodiment, the updating the initial call frequency and determining the communication frequency between the primary station and the secondary station according to the updated call frequency include:
if the slave station does not receive the response message corresponding to the updated calling frequency within a preset time length, determining the updated calling frequency according to the initial calling frequency, and controlling the master station to send an empty data packet to the slave station according to the updated calling frequency; the updated calling frequency is less than the initial calling frequency;
and determining the communication frequency of the master station and the slave station according to the response message corresponding to the updated call frequency sent by the slave station.
In one embodiment, the determining an initial call frequency according to the communication frequency band includes:
determining a plurality of communication channels corresponding to the communication frequency band;
and determining the frequency corresponding to the first communication channel in the plurality of communication channels as the initial calling frequency.
In one embodiment, the determining, according to the communication parameter, a communication frequency band corresponding to the communication parameter includes:
acquiring the communication distance parameter and the communication time parameter;
determining a communication frequency range corresponding to the communication distance parameter and the communication time parameter according to a preset communication frequency range comparison table; the communication frequency band comparison table comprises the corresponding relation between the communication distance parameter and the communication time parameter as well as the communication frequency band.
In one embodiment, the obtaining the communication time parameter includes: and acquiring the communication time parameter through satellite time service equipment or self-time service equipment.
In a second aspect, an embodiment of the present invention provides a frequency selection apparatus based on short-wave communication, where the apparatus includes:
the first determining module is used for determining a communication frequency band corresponding to the communication parameter according to the communication parameter; the communication parameters comprise a communication distance parameter and a communication time parameter;
a second determining module, configured to determine an initial call frequency according to the communication frequency band;
the sending module is used for controlling the master station to send the null data packet to the slave station according to the initial calling frequency;
and the third determining module is used for determining the communication frequency of the master station and the slave station according to the response message sent by the slave station.
In a third aspect, an embodiment of the present invention provides a computer device, including a memory and a processor, where the memory stores a computer program, and the processor implements the following steps when executing the computer program:
determining a communication frequency band corresponding to the communication parameter according to the communication parameter; the communication parameters comprise a communication distance parameter and a communication time parameter;
determining an initial calling frequency according to the communication frequency band;
the control master station sends a null data packet to the slave station according to the initial calling frequency;
and determining the communication frequency of the master station and the slave station according to the response message sent by the slave station.
In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the following steps:
determining a communication frequency band corresponding to the communication parameter according to the communication parameter; the communication parameters comprise communication distance parameters and communication time parameters;
determining an initial calling frequency according to the communication frequency band;
the control master station sends a null data packet to the slave station according to the initial calling frequency;
and determining the communication frequency of the master station and the slave station according to the response message sent by the slave station.
In the frequency selection method and apparatus based on short-wave communication, the computer device and the storage medium provided in the above embodiments, the computer device determines a communication frequency band corresponding to a communication parameter according to the communication parameter; the communication parameters comprise communication distance parameters and communication time parameters; determining an initial calling frequency according to the communication frequency band; the control master station sends an empty data packet to the slave station according to the initial calling frequency; according to the response message sent by the slave station, the communication frequency of the master station and the slave station is determined, in the method, the computer equipment can determine the communication frequency band corresponding to the communication parameter according to the communication parameter, the initial calling frequency is determined according to the communication frequency band corresponding to the communication parameter, the efficiency of determining the initial calling frequency is improved, the communication frequency of the master station and the slave station controls the master station to send empty data packets to the slave station according to the initial calling frequency, the communication frequency of the master station and the slave station can be immediately determined according to the response message sent by the slave station, and the transmission instantaneity of the determined communication frequency is improved; in addition, the efficiency of determining the initial calling frequency is improved, and the efficiency of determining the communication frequency of the master station and the slave station is further improved.
Drawings
Fig. 1 is an application environment diagram of a frequency selection method based on short-wave communication according to an embodiment;
fig. 2 is a schematic flowchart of a frequency selection method based on short-wave communication according to an embodiment;
fig. 3 is a schematic flowchart of a frequency selection method based on short-wave communication according to another embodiment;
fig. 4 is a schematic flowchart of a frequency selection method based on short-wave communication according to another embodiment;
fig. 5 is a schematic flowchart of a frequency selection method based on short-wave communication according to another embodiment;
fig. 6 is a schematic structural diagram of a frequency selection device based on short-wave communication according to an embodiment;
fig. 7 is a schematic structural diagram of a frequency selection device based on short-wave communication according to another embodiment;
fig. 8 is a schematic internal structural diagram of a computer device according to an embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
The frequency selection method based on short-wave communication provided by the embodiment of the application can be applied to the application environment shown in fig. 1. The master station 102 and the slave station 104 communicate with a computer device 106. The primary station 102 is configured to send an empty data packet to the secondary station 104 according to the call frequency determined by the computer device 106, the secondary station 104 is configured to send a response message to the primary station 102, and the computer device 106 is configured to determine a communication frequency between the primary station and the secondary station according to the response message sent by the secondary station 104.
The traditional method for determining the short-wave communication frequency has the problem of low transmission real-time performance. Therefore, embodiments of the present invention provide a frequency selection method and apparatus based on short-wave communication, a computer device, and a storage medium, which are intended to solve the above technical problems of the conventional technology.
The following describes the technical solution of the present invention and how to solve the above technical problems with specific examples. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments.
Fig. 2 is a schematic flowchart of a frequency selection method based on short-wave communication according to an embodiment. The embodiment relates to a specific implementation process that the computer equipment controls a master station to send a null data packet to a slave station according to a determined initial call frequency and determines the communication frequency of the master station and the slave station according to a response message sent by the slave station. As shown in fig. 2, the method may include:
s201, determining a communication frequency band corresponding to the communication parameter according to the communication parameter; the communication parameters include a communication distance parameter and a communication time parameter.
Specifically, the computer device determines a communication frequency band corresponding to the communication parameter according to the communication parameter, where the communication parameter includes a communication distance parameter and a communication time parameter, the communication distance parameter is a communication distance between the master station and the slave station, and the communication time parameter is a communication time between the master station and the slave station. Optionally, the computer device may determine the communication frequency band corresponding to the communication parameter according to the communication parameter and an existing correspondence table between the communication parameter and the communication frequency band. For example, when the communication distance between the primary station and the secondary station is 100KM to 300KM and the communication time is 15:00 to 14:00, the communication frequency band corresponding to the communication distance and the communication time determined by the computer device may be 6MHz to 10 MHz. Alternatively, the communication distance between the master station and the slave station may be any one of 0 to 100KM, 100 to 300KM, 300 to 500KM, 500 to 1000KM, 1000 to 2000KM, and 2000KM or more.
S202, according to the communication frequency band, determining an initial calling frequency.
Specifically, the computer device determines an initial call frequency of the master station and the slave station according to the determined communication frequency band. Optionally, the computer device determines, according to the determined communication frequency band, a plurality of communication channels corresponding to the frequency band, arbitrarily selects one communication channel from the plurality of communication channels, and determines a frequency corresponding to the communication channel as an initial call frequency.
And S203, controlling the master station to send the null data packet to the slave station according to the initial calling frequency.
Specifically, after the computer device determines the initial calling frequency, the control master station sends null data packets to the slave station according to the determined initial calling frequency. Optionally, the transmitted null data packet carries information such as a synchronization header, a sending station address, a receiving station address, a frame type, and a data length. It should be noted that the computer device controls the master station to transmit null packets to the slave station in the traffic waveform. The computer device controls the data length of the null data packet transmitted from the master station to the slave station to be 0.
And S204, determining the communication frequency of the master station and the slave station according to the response message sent by the slave station.
Specifically, the computer device determines the communication frequency of the master station and the slave station according to the response message sent by the slave station. Alternatively, the computer device may determine an initial call frequency corresponding to the time when the primary station receives the response message as a communication frequency between the primary station and the secondary station, and then perform communication at the communication frequency. For example, if the computer device controls the master station to transmit an empty packet to the slave station at a frequency of 6MHz, the slave station receives the empty packet and transmits a response message to the master station, and the master station receives the response message transmitted by the slave station, the computer device may determine 6MHz as the communication frequency between the master station and the slave station.
In this embodiment, the computer device is capable of determining a communication frequency band corresponding to the communication parameter according to the communication parameter, determining an initial call frequency according to the communication frequency band, wherein the initial call frequency is determined according to the communication frequency band corresponding to the communication parameter, so that efficiency of determining the initial call frequency is improved, and communication frequencies of the master station and the slave station control the master station to send null data packets to the slave station according to the initial call frequency, are determined according to a response message sent by the slave station, and the communication frequencies of the master station and the slave station can be immediately determined according to the response message sent by the slave station, so that transmission real-time performance of determining the communication frequency is improved; in addition, the efficiency of determining the initial calling frequency is improved, and the efficiency of determining the communication frequency of the master station and the slave station is further improved.
Fig. 3 is a schematic flowchart of a frequency selection method based on short-wave communication according to another embodiment. The embodiment relates to a specific implementation process of determining the communication frequency of a master station and a slave station by a computer device according to a response message sent by the slave station. As shown in fig. 3, on the basis of the foregoing embodiment, as an optional implementation manner, the foregoing S204 includes:
s301, judging whether the master station receives a response message; if yes, go to step 302; if not, go to step 303.
Specifically, the computer device controls the master station to send an empty data packet to the slave station according to the initial call frequency, and then judges whether the master station receives a response message sent by the slave station. Optionally, the master station may receive the response message sent by the slave station, or may not receive the response message sent by the slave station.
And S302, determining the communication frequency of the master station and the slave station according to the initial call frequency.
Specifically, if the computer device determines that the master station receives the response message sent by the slave station, the communication frequency of the master station and the communication frequency of the slave station are determined according to the initial call frequency. Optionally, the computer device may determine the communication frequency of the primary station and the secondary station according to the initial call frequency and a preset communication frequency spreading value. Optionally, the computer device may determine the initial call frequency as a communication frequency of the master station and the slave station, or may determine the communication frequency of the master station and the slave station according to the initial call frequency and a preset communication frequency spreading value. Alternatively, the preset communication frequency spreading value may be 3 MHz. For example, if the computer device determines that the primary station receives the response message sent by the secondary station, and the initial call frequency of the primary station sending the null data packet to the secondary station is 10MHz, the computer device may determine 10MHz as the communication frequency of the primary station and the secondary station, or may determine the communication frequency of the primary station and the secondary station according to 10MHz and a preset communication frequency spreading value.
And S303, updating the initial calling frequency, and determining the communication frequency of the master station and the slave station according to the updated calling frequency.
Specifically, if the computer device determines that the master station does not receive the response message sent by the slave station, the initial calling frequency is updated, and the communication frequency between the master station and the slave station is determined according to the updated calling frequency. Optionally, the computer device may determine a next call frequency corresponding to the initial call frequency as an updated call frequency, control the master station to send an empty data packet to the slave station according to the updated call frequency, and determine the communication frequency between the master station and the slave station according to a response message corresponding to the updated call frequency sent by the slave station. Optionally, if the slave station does not receive the response message corresponding to the updated call frequency within the preset time duration, the computer device may determine the updated call frequency according to the initial call frequency, and control the master station to send the null data packet to the slave station according to the updated call frequency, where the updated call frequency is smaller than the initial call frequency, and determine the communication frequency between the master station and the slave station according to the response message corresponding to the updated call frequency sent by the slave station.
In this embodiment, the computer device can quickly determine whether the master station receives the response message sent by the slave station, and can immediately determine the communication frequency between the master station and the slave station according to the determination result of whether the master station receives the response message, so that the transmission real-time performance of determining the communication frequency is improved; in addition, the process of judging whether the master station receives the response message sent by the slave station is very simple, the efficiency of judging whether the master station receives the response message sent by the slave station by the computer equipment is improved, and the efficiency of determining the communication frequency of the master station and the slave station by the computer equipment is further improved.
In the scenario where the computer device determines the initial call frequency according to the communication frequency band, the computer device may determine the initial call frequency according to a plurality of communication channels corresponding to the communication frequency band. Fig. 4 is a schematic flowchart of a frequency selection method based on short-wave communication according to another embodiment. The embodiment relates to a specific implementation process for determining an initial call frequency by a computer device according to a communication frequency band. As shown in fig. 4, on the basis of the foregoing embodiment, as an optional implementation manner, the foregoing S202 includes:
s401, a plurality of communication channels corresponding to the communication frequency bands are determined.
Specifically, each communication frequency band corresponds to a plurality of communication channels, and the computer device determines the plurality of communication channels corresponding to the communication frequency bands according to the determined communication frequency bands. For example, a communication band of 3MHz to 30MHz corresponds to 600 communication channels. It should be noted that, the plurality of communication channels corresponding to each communication frequency band are not arranged at equal intervals, but are relatively dense in the common 6MHz to 15MHz range, and relatively sparse in other frequency ranges. The number of communication channels corresponding to each communication frequency band depends on the receiving performance of the broadband receiver of the secondary station, and the number of communication channels cannot be more than the number of channels which are simultaneously analyzed by the broadband receiver.
S402, determining the frequency corresponding to the first communication channel in the plurality of communication channels as the initial calling frequency.
Specifically, the computer device determines a frequency corresponding to a first one of the plurality of communication channels as an initial call frequency. For example, if there are 600 communication channels corresponding to the communication frequency band from 3MHz to 30MHz, and the frequency corresponding to the first channel in the 600 communication channels is 3MHz, the computer device determines that 3MHz is the initial call frequency.
In this embodiment, the computer device determines, according to the determined communication frequency band, a plurality of communication channels corresponding to the communication frequency band, and determines, as the initial call frequency, a frequency corresponding to a first communication channel in the plurality of communication channels, where the method for determining the initial call frequency is very simple, and as long as the plurality of communication channels corresponding to the communication frequency band are determined, the initial call frequency can be determined, so that efficiency of determining the initial call frequency is improved, and further, efficiency of controlling the master station to transmit a null data packet to the slave station according to the initial call frequency and determining the communication frequencies of the master station and the slave station according to the response message sent by the slave station is improved.
In a scenario that the computer device determines the communication frequency band corresponding to the communication parameter according to the communication parameter, the computer device may determine the communication frequency band corresponding to the communication parameter according to a preset communication frequency band comparison table. Fig. 5 is a schematic flowchart of a frequency selection method based on short-wave communication according to another embodiment. The embodiment relates to a specific implementation process of determining a communication frequency band corresponding to a communication parameter by computer equipment according to the communication parameter. As shown in fig. 5, on the basis of the foregoing embodiment, as an optional implementation manner, the foregoing S201 includes:
s501, a communication distance parameter and a communication time parameter are obtained.
Specifically, the computer device obtains a communication distance parameter and a communication time parameter. Optionally, the user may input the communication distance parameter on the computer device, and the computer device obtains the communication distance parameter input by the user. Optionally, the computer device may obtain the communication time parameter through a satellite time service device or a self-time service device, where the satellite time service device may be a Global Positioning System (GPS) device or a Beidou time service device.
S502, determining a communication frequency range corresponding to a communication distance parameter and a communication time parameter according to a preset communication frequency range comparison table; the communication frequency range comparison table comprises a corresponding relation between a communication distance parameter and a communication time parameter and a communication frequency range.
Specifically, the computer device determines a communication frequency band corresponding to the communication distance parameter and the communication time parameter according to a preset communication frequency band comparison table. The communication frequency band comparison table comprises a corresponding relation between a communication distance parameter and a communication time parameter and a communication frequency band. Illustratively, if the communication distance parameter is 300KM to 500KM and the communication time parameter is 15:00 to 16:30, the communication frequency band corresponding to the communication distance parameter and the communication time parameter is determined to be 15MHz to 20MHz according to a preset communication frequency band comparison table.
In this embodiment, the method for determining the communication band corresponding to the communication distance parameter and the communication time parameter by the computer device according to the preset communication band comparison table is particularly simple, and after the communication distance parameter and the communication time parameter are obtained, the communication band corresponding to the communication distance parameter and the communication time parameter can be determined according to the preset communication band comparison table, so that the efficiency of determining the communication band corresponding to the communication distance parameter and the communication time parameter is improved.
It should be understood that although the various steps in the flow charts of fig. 2-5 are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not limited to being performed in the exact order illustrated and, unless explicitly stated herein, may be performed in other orders. Moreover, at least some of the steps in fig. 2-5 may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, and the order of performing the sub-steps or stages is not necessarily sequential, but may be performed alternately or alternatingly with other steps or at least some of the sub-steps or stages of other steps.
Fig. 6 is a schematic structural diagram of a frequency selection device based on short-wave communication according to an embodiment. As shown in fig. 6, the apparatus may include: a first determination module 10, a second determination module 11, a sending module 12 and a third determination module 13.
Specifically, the first determining module 10 is configured to determine, according to the communication parameter, a communication frequency band corresponding to the communication parameter; the communication parameters comprise communication distance parameters and communication time parameters;
a second determining module 11, configured to determine an initial call frequency according to a communication frequency band;
a sending module 12, configured to control the master station to send an empty data packet to the slave station according to the initial call frequency;
and a third determining module 13, configured to determine, according to the response message sent by the slave station, a communication frequency between the master station and the slave station.
The frequency selection device based on short-wave communication provided by this embodiment may implement the method embodiments described above, and the implementation principle and technical effect are similar, which are not described herein again.
Fig. 7 is a schematic structural diagram of a frequency selection device based on short-wave communication according to another embodiment. On the basis of the embodiment shown in fig. 6, optionally, the third determining module 13 may include: a judgment unit 131, a first determination unit 132, and a second determination unit 133.
Specifically, the determining unit 131 is configured to determine whether the master station receives the response message;
a first determining unit 132 for determining a communication frequency of the master station and the slave station from the initial call frequency;
a second determining unit 133, configured to update the initial call frequency, and determine a communication frequency between the master station and the slave station according to the updated call frequency.
The frequency selection device based on short-wave communication provided by this embodiment may implement the method embodiments described above, and the implementation principle and technical effect are similar, which are not described herein again.
On the basis of the foregoing embodiment, optionally, the first determining unit 132 is specifically configured to determine the communication frequency according to the initial call frequency and a preset communication frequency spreading value.
The frequency selection device based on short-wave communication provided by this embodiment may implement the method embodiments described above, and the implementation principle and technical effect are similar, which are not described herein again.
On the basis of the foregoing embodiment, optionally, the second determining unit 133 is specifically configured to determine a next calling frequency corresponding to the initial calling frequency as the updated calling frequency; the control master station sends a null data packet to the slave station according to the updated calling frequency; and determining the communication frequency of the master station and the slave station according to the response message corresponding to the updated call frequency sent by the slave station.
The frequency selection device based on short-wave communication provided by this embodiment may implement the method embodiments described above, and the implementation principle and technical effect are similar, which are not described herein again.
On the basis of the foregoing embodiment, optionally, the second determining unit 133 is specifically configured to determine the updated call frequency according to the initial call frequency if the slave station does not receive the response message corresponding to the updated call frequency within the preset time duration, and control the master station to send the null data packet to the slave station according to the updated call frequency; the updated calling frequency is less than the initial calling frequency; and determining the communication frequency of the master station and the slave station according to the response message corresponding to the updated call frequency sent by the slave station.
The frequency selection device based on short-wave communication provided by this embodiment may implement the method embodiments described above, and the implementation principle and technical effect are similar, which are not described herein again.
With continuing reference to fig. 7, on the basis of the foregoing embodiment, optionally, as shown in fig. 7, the second determining module 11 includes: a third determination unit 111 and a fourth determination unit 112.
Specifically, the third determining unit 111 is configured to determine a plurality of communication channels corresponding to communication frequency bands;
a fourth determining unit 112, configured to determine a frequency corresponding to a first communication channel of the multiple communication channels as an initial call frequency.
The frequency selection device based on short-wave communication provided by this embodiment may implement the method embodiments, and the implementation principle and technical effect are similar, which are not described herein again.
With continuing reference to fig. 7, on the basis of the foregoing embodiment, optionally, as shown in fig. 7, the first determining module 10 includes: an acquisition unit 101 and a fifth determination unit 102.
Specifically, the acquiring unit 101 is configured to acquire a communication distance parameter and a communication time parameter;
a fifth determining unit 102, configured to determine a communication frequency band corresponding to the communication distance parameter and the communication time parameter according to a preset communication frequency band comparison table; the communication frequency range comparison table comprises a corresponding relation between a communication distance parameter and a communication time parameter and a communication frequency range.
The frequency selection device based on short-wave communication provided by this embodiment may implement the method embodiments, and the implementation principle and technical effect are similar, which are not described herein again.
On the basis of the foregoing embodiment, optionally, the obtaining unit 101 is specifically configured to obtain the communication time parameter through a satellite time service device or a self-time service device.
The frequency selection device based on short-wave communication provided by this embodiment may implement the method embodiments described above, and the implementation principle and technical effect are similar, which are not described herein again.
For specific limitations of the frequency selection device based on short-wave communication, reference may be made to the above limitations of the frequency selection method based on short-wave communication, and details thereof are not repeated here. All or part of each module in the frequency selection device based on short-wave communication can be realized through software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
The frequency selection method based on short-wave communication provided by the embodiment of the application can be applied to computer equipment shown in figure 8. The computer device comprises a processor and a memory connected by a system bus, wherein a computer program is stored in the memory, and the steps of the method embodiments described below can be executed when the processor executes the computer program. Optionally, the computer device may further comprise a network interface, a display screen and an input device. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device includes a nonvolatile storage medium storing an operating system and a computer program, and an internal memory. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The network interface of the computer device is used for communicating with an external terminal through a network connection. Optionally, the computer device may be a server, a personal computer, a personal digital assistant, other terminal devices such as a tablet computer, a mobile phone, and the like, or a cloud or a remote server, and the embodiment of the present application does not limit the specific form of the computer device.
In one embodiment, a computer device is provided, comprising a memory and a processor, the memory having a computer program stored therein, the processor implementing the following steps when executing the computer program:
determining a communication frequency band corresponding to the communication parameters according to the communication parameters; the communication parameters comprise communication distance parameters and communication time parameters;
determining an initial calling frequency according to a communication frequency band;
the control master station sends an empty data packet to the slave station according to the initial calling frequency;
and determining the communication frequency of the master station and the slave station according to the response message sent by the slave station.
The implementation principle and technical effect of the computer device provided by the above embodiment are similar to those of the above method embodiment, and are not described herein again.
In one embodiment, a readable storage medium is provided, having stored thereon a computer program which, when executed by a processor, performs the steps of:
determining a communication frequency band corresponding to the communication parameter according to the communication parameter; the communication parameters comprise a communication distance parameter and a communication time parameter;
determining an initial calling frequency according to a communication frequency band;
the control master station sends an empty data packet to the slave station according to the initial calling frequency;
and determining the communication frequency of the master station and the slave station according to the response message sent by the slave station.
The implementation principle and technical effect of the readable storage medium provided by the above embodiment are similar to those of the above method embodiment, and are not described herein again.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above may be implemented by hardware instructions of a computer program, which may be stored in a non-volatile computer-readable storage medium, and when executed, may include the processes of the embodiments of the methods described above. Any reference to memory, storage, database or other medium used in the embodiments provided herein can include non-volatile and/or volatile memory. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), synchronous Link (Synchlink) DRAM (SLDRAM), Rambus (Rambus) direct RAM (RDRAM), direct bused dynamic RAM (DRDRAM), and bused dynamic RAM (RDRAM).
All possible combinations of the technical features of the above embodiments may not be described for the sake of brevity, but should be considered as within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is specific and detailed, but not to be understood as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A frequency selection method based on short-wave communication is characterized by comprising the following steps:
determining a communication frequency band corresponding to the communication parameters according to the communication parameters; the communication parameters comprise communication distance parameters and communication time parameters;
determining a plurality of communication channels corresponding to the communication frequency band, and determining a frequency corresponding to a first communication channel in the plurality of communication channels as an initial calling frequency;
the control master station sends a null data packet to the slave station in a service waveform according to the initial calling frequency;
judging whether the master station receives a response message sent by the slave station, if so, determining the communication frequency of the master station and the slave station according to the initial calling frequency; if not, determining the next calling frequency corresponding to the initial calling frequency as an updated calling frequency, controlling the master station to send the empty data packet to the slave station according to the updated calling frequency, if the slave station does not receive a response message corresponding to the updated calling frequency within a preset time, determining the updated calling frequency according to the initial calling frequency, controlling the master station to send the empty data packet to the slave station according to the updated calling frequency, and determining the communication frequencies of the master station and the slave station according to the response message corresponding to the updated calling frequency sent by the slave station; the updated calling frequency is less than the initial calling frequency.
2. The method of claim 1, wherein determining the communication frequency of the primary station with the secondary station based on the initial call frequency comprises:
and determining the communication frequency according to the initial calling frequency and a preset communication frequency expansion value.
3. The method of claim 1, wherein the number of communication channels per communication band depends on the reception performance of a wideband receiver of the secondary station, and wherein the number of communication channels per communication band is less than the number of channels simultaneously resolved by the wideband receiver.
4. The method according to claim 3, wherein the determining, according to the communication parameter, the communication frequency band corresponding to the communication parameter includes:
acquiring the communication distance parameter and the communication time parameter;
determining a communication frequency range corresponding to the communication distance parameter and the communication time parameter according to a preset communication frequency range comparison table; the communication frequency band comparison table comprises the corresponding relation between the communication distance parameter and the communication time parameter as well as the communication frequency band.
5. The method of claim 4, wherein the obtaining the communication time parameter comprises: and acquiring the communication time parameter through satellite time service equipment or self-time service equipment.
6. The method of claim 1, wherein the null data packet carries information of a synchronization header, an address of a transmitting station, an address of a receiving station, a frame type, and a data length.
7. The method of claim 2, wherein the preset communication frequency spread value is 3 MHz.
8. A frequency selecting apparatus based on short wave communication, the apparatus comprising:
the first determining module is used for determining a communication frequency band corresponding to the communication parameter according to the communication parameter; the communication parameters comprise communication distance parameters and communication time parameters;
a second determining module, configured to determine multiple communication channels corresponding to the communication frequency band, and determine a frequency corresponding to a first communication channel in the multiple communication channels as an initial call frequency;
the sending module is used for controlling the master station to send the null data packet to the slave station in a service waveform according to the initial calling frequency;
a third determining module, configured to determine whether the master station receives a response message sent by the slave station, and if yes, determine a communication frequency between the master station and the slave station according to the initial call frequency; if not, determining the next calling frequency corresponding to the initial calling frequency as an updated calling frequency, controlling the master station to send the empty data packet to the slave station according to the updated calling frequency, if the slave station does not receive a response message corresponding to the updated calling frequency within a preset time, determining the updated calling frequency according to the initial calling frequency, controlling the master station to send the empty data packet to the slave station according to the updated calling frequency, and determining the communication frequency between the master station and the slave station according to the response message corresponding to the updated calling frequency sent by the slave station; the updated calling frequency is less than the initial calling frequency.
9. A computer arrangement comprising a memory and a processor, the memory storing a computer program, characterized in that the processor, when executing the computer program, implements the steps of the method according to any of claims 1-7.
10. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 7.
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