CN109168133B - Broadcast station access method, receiving end and computer readable storage medium - Google Patents
Broadcast station access method, receiving end and computer readable storage medium Download PDFInfo
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- CN109168133B CN109168133B CN201811065537.0A CN201811065537A CN109168133B CN 109168133 B CN109168133 B CN 109168133B CN 201811065537 A CN201811065537 A CN 201811065537A CN 109168133 B CN109168133 B CN 109168133B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/02—Access restriction performed under specific conditions
- H04W48/04—Access restriction performed under specific conditions based on user or terminal location or mobility data, e.g. moving direction, speed
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
- H04W48/10—Access restriction or access information delivery, e.g. discovery data delivery using broadcasted information
Abstract
The invention discloses a broadcast station access method, a receiving end and a computer readable storage medium, wherein the broadcast station access method comprises the following steps: acquiring current position information and broadcast site coverage information of a receiving end, and determining a current located sector of the receiving end based on the current position information and the broadcast site coverage information; and determining an optimal broadcasting station according to the current sector, and receiving a broadcasting signal of the optimal broadcasting station. The invention can automatically select the best broadcasting station for the receiving end based on the position of the receiving end and the covering information of the broadcasting station, and receive the broadcasting signal of the best broadcasting station, thereby ensuring the continuous availability of the wireless broadcasting service.
Description
Technical Field
The present invention relates to the field of wireless digital broadcasting technologies, and in particular, to a broadcast station access method, a receiving end, and a computer-readable storage medium.
Background
When the wireless broadcast system is actually deployed, a single frequency network or a multi-frequency network mode can be adopted according to service requirements.
Currently, a multi-frequency network is widely used, which is divided according to regions, and broadcasting stations in different regions in the multi-frequency network broadcast specific programs on channels of different frequencies. For example, in the multi-frequency network, the broadcasting station 1 in the area a broadcasts the specific program on the channel with the frequency 1, the broadcasting station 2 in the area B broadcasts the specific program on the channel with the frequency 2, when the receiving end is in the area a, the receiving frequency needs to be adjusted to the frequency 1 to receive the specific program broadcasted by the broadcasting station 1, and when the receiving end moves from the area a to the area B, the receiving frequency needs to be adjusted from the frequency 1 to the frequency 2 to receive the specific program broadcasted by the broadcasting station 2.
That is, in the multi-frequency network, along with the change of the region, the receiving frequency of the receiving end needs to be manually adjusted, so that the continuous availability of the wireless broadcast service can be ensured.
Disclosure of Invention
The present invention mainly aims to provide a broadcast station access method, a receiving end and a computer readable storage medium, and aims to solve the technical problem that in the prior art, the receiving frequency of the receiving end needs to be manually adjusted along with the change of regions in a multi-frequency network.
In order to achieve the above object, the present invention provides a broadcast station access method, which includes the following steps:
acquiring current position information and broadcast site coverage information of a receiving end, and determining a current located sector of the receiving end based on the current position information and the broadcast site coverage information;
and determining an optimal broadcasting station according to the current sector, and receiving a broadcasting signal of the optimal broadcasting station.
Optionally, the step of determining the current sector of the receiving end based on the current location information and the broadcast station coverage information includes:
obtaining an azimuth angle of the receiving end relative to each broadcasting station according to the current position information and the position information of each broadcasting station contained in the broadcasting station coverage information;
and determining the current sector of the receiving end according to the azimuth angle of the receiving end relative to each broadcasting station and the sector division information of each broadcasting station contained in the broadcasting station coverage information.
Optionally, the step of determining an optimal broadcast station according to the current sector includes:
acquiring the number of the current sectors;
and if the number of the current located sectors is 1, taking the broadcast station to which the current located sectors belong as the optimal broadcast station.
Optionally, after the step of obtaining the number of the current sector, the method further includes:
if the number of the current located sectors is larger than 1, obtaining the inbound scale of the receiving end relative to each current located sector according to the coverage distance of each current located sector and the distance between the receiving end and the broadcasting station to which each current located sector belongs;
and taking the broadcasting station to which the current sector belongs corresponding to the maximum inbound size as the optimal broadcasting station.
Optionally, the step of receiving the broadcast signal of the optimal broadcast station includes:
detecting whether a broadcast signal is currently received, and if the broadcast signal is currently received, detecting whether a broadcast station corresponding to the currently received broadcast signal is the optimal broadcast station;
if the broadcast station corresponding to the currently received broadcast signal is not the optimal broadcast station, acquiring the signal frequency of the optimal broadcast station;
stopping receiving the current broadcast signal, and receiving the broadcast signal of the optimal broadcast station through the signal frequency of the optimal broadcast station.
Optionally, the step of stopping receiving the current broadcast signal and receiving the broadcast signal of the optimal broadcast station through the signal frequency of the optimal broadcast station includes:
detecting whether the receiving end has a multi-channel simultaneous receiving function;
if the receiving end has a multi-channel simultaneous receiving function, receiving a current broadcast signal through a first receiving channel, and detecting whether a second receiving channel can receive the broadcast signal of the optimal broadcasting station through the signal frequency of the optimal broadcasting station;
if the second receiving channel can receive the broadcast signal of the optimal broadcast station through the signal frequency of the optimal broadcast station, stopping receiving the current broadcast signal through the first receiving channel, and receiving the broadcast signal of the optimal broadcast station through the second receiving channel at the signal frequency of the optimal broadcast station.
Optionally, after the step of receiving the broadcast signal of the optimal broadcast station, the method further includes:
detecting whether the receiving end is in a moving state;
if the receiving end is in a moving state, setting a target time length, starting timing, acquiring new current position information and broadcasting site coverage information of the receiving end when the timing time length reaches the target time length, taking the new current position information and the broadcasting site coverage information as the current position information and the broadcasting site coverage information, and executing the step of determining the current located sector of the receiving end based on the current position information and the broadcasting site coverage information.
Optionally, if the receiving end is in a moving state, the step of setting a target duration and starting timing includes:
and if the receiving end is in a moving state, acquiring the moving speed of the receiving end, setting a target duration based on the moving speed, and starting timing.
In addition, to achieve the above object, the present invention further provides a receiving end, including: a memory, a processor and a broadcast station access program stored on the memory and executable on the processor, the broadcast station access program when executed by the processor implementing the steps of the broadcast station access method as described above.
Further, to achieve the above object, the present invention also provides a computer-readable storage medium having a broadcast station access program stored thereon, which, when executed by a processor, implements the steps of the broadcast station access method as described above.
In the invention, current position information and broadcast site coverage information of a receiving end are obtained, and a current located sector of the receiving end is determined based on the current position information and the broadcast site coverage information; and determining an optimal broadcasting station according to the current sector, and receiving a broadcasting signal of the optimal broadcasting station. By the invention, the optimal broadcasting station can be automatically selected for the receiving end based on the position of the receiving end and the covering information of the broadcasting station, and the broadcasting signal of the optimal broadcasting station can be received, thereby ensuring the continuous availability of the wireless broadcasting service.
Drawings
Fig. 1 is a schematic diagram of a receiving end structure of a hardware operating environment according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating a broadcast station access method according to a first embodiment of the present invention;
fig. 3 is a schematic view of a scene of an effective signal coverage area of a broadcast station in an embodiment of a broadcast station access method of the present invention;
fig. 4 is a schematic diagram of a format of broadcast site coverage information broadcast by a broadcast site in a multi-frequency network.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, fig. 1 is a schematic diagram of a receiving end structure of a hardware operating environment according to an embodiment of the present invention.
As shown in fig. 1, the receiving end may include: a processor 1001, such as a CPU, a network interface 1004, a user interface 1003, a memory 1005, a communication bus 1002. Wherein a communication bus 1002 is used to enable connective communication between these components. The user interface 1003 may include a Display screen (Display), an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a wireless interface (e.g., WI-FI interface). The memory 1005 may be a high-speed RAM memory or a non-volatile memory (e.g., a magnetic disk memory). The memory 1005 may alternatively be a storage device separate from the processor 1001.
Those skilled in the art will appreciate that the receive end configuration shown in fig. 1 does not constitute a limitation of the receive end and may include more or fewer components than shown, or some components may be combined, or a different arrangement of components.
As shown in fig. 1, a memory 1005, which is a kind of computer storage medium, may include therein an operating system, a network communication module, a user interface module, and a broadcast station access program.
In the receiving end shown in fig. 1, the network interface 1004 is mainly used for connecting to a backend server and performing data communication with the backend server; the user interface 1003 is mainly used for connecting a client (user side) and performing data communication with the client; and the processor 1001 may be configured to call the broadcast station access program stored in the memory 1005 and perform the following operations:
acquiring current position information and broadcast site coverage information of a receiving end, and determining a current located sector of the receiving end based on the current position information and the broadcast site coverage information;
and determining an optimal broadcasting station according to the current sector, and receiving a broadcasting signal of the optimal broadcasting station.
Further, the processor 1001 may call the broadcast station access program stored in the memory 1005, and further perform the following operations:
obtaining an azimuth angle of the receiving end relative to each broadcasting station according to the current position information and the position information of each broadcasting station contained in the broadcasting station coverage information;
and determining the current sector of the receiving end according to the azimuth angle of the receiving end relative to each broadcasting station and the sector division information of each broadcasting station contained in the broadcasting station coverage information.
Further, the processor 1001 may call the broadcast station access program stored in the memory 1005, and further perform the following operations:
acquiring the number of the current sectors;
and if the number of the current located sectors is 1, taking the broadcast station to which the current located sectors belong as the optimal broadcast station.
Further, the processor 1001 may call the broadcast station access program stored in the memory 1005, and further perform the following operations:
if the number of the current located sectors is larger than 1, obtaining the inbound scale of the receiving end relative to each current located sector according to the coverage distance of each current located sector and the distance between the receiving end and the broadcasting station to which each current located sector belongs;
and taking the broadcasting station to which the current sector belongs corresponding to the maximum inbound size as the optimal broadcasting station.
Further, the processor 1001 may call the broadcast station access program stored in the memory 1005, and further perform the following operations:
detecting whether a broadcast signal is currently received, and if the broadcast signal is currently received, detecting whether a broadcast station corresponding to the currently received broadcast signal is the optimal broadcast station;
if the broadcast station corresponding to the currently received broadcast signal is not the optimal broadcast station, acquiring the signal frequency of the optimal broadcast station;
stopping receiving the current broadcast signal, and receiving the broadcast signal of the optimal broadcast station through the signal frequency of the optimal broadcast station.
Further, the processor 1001 may call the broadcast station access program stored in the memory 1005, and further perform the following operations:
detecting whether the receiving end has a multi-channel simultaneous receiving function;
if the receiving end has a multi-channel simultaneous receiving function, receiving a current broadcast signal through a first receiving channel, and detecting whether a second receiving channel can receive the broadcast signal of the optimal broadcasting station through the signal frequency of the optimal broadcasting station;
if the second receiving channel can receive the broadcast signal of the optimal broadcast station through the signal frequency of the optimal broadcast station, stopping receiving the current broadcast signal through the first receiving channel, and receiving the broadcast signal of the optimal broadcast station through the second receiving channel at the signal frequency of the optimal broadcast station.
Further, the processor 1001 may call the broadcast station access program stored in the memory 1005, and further perform the following operations:
detecting whether the receiving end is in a moving state;
if the receiving end is in a moving state, setting a target time length, starting timing, acquiring new current position information and broadcasting site coverage information of the receiving end when the timing time length reaches the target time length, taking the new current position information and the broadcasting site coverage information as the current position information and the broadcasting site coverage information, and executing the step of determining the current located sector of the receiving end based on the current position information and the broadcasting site coverage information.
Further, the processor 1001 may call the broadcast station access program stored in the memory 1005, and further perform the following operations:
and if the receiving end is in a moving state, acquiring the moving speed of the receiving end, setting a target duration based on the moving speed, and starting timing.
Referring to fig. 2, fig. 2 is a flowchart illustrating a broadcast station access method according to a first embodiment of the present invention.
In one embodiment, the broadcast station access method includes:
step S10, acquiring current position information and broadcast site coverage information of a receiving end, and determining a current located sector of the receiving end based on the current position information and the broadcast site coverage information;
in this embodiment, the broadcast site coverage information includes: the network number of the multi-frequency network, the signal frequency of each broadcast station in the multi-frequency network, the position (e.g., longitude and latitude coordinates) of each broadcast station, and the effective signal coverage area information of each broadcast station.
In the present embodiment, a broadcasting station is consideredWhen points are actually deployed, due to differences in various factors such as site selection, terrain, antenna directivity and the like, the effective signal coverage area of a broadcast station is not a simple circular area radiating to the periphery by taking the broadcast station as a center. Referring to fig. 3, fig. 3 is a schematic view of a scene of an effective signal coverage area of a broadcast station in an embodiment of a broadcast station access method of the present invention. As shown in FIG. 3, the coverage area of the effective signal is divided into m sectors, each sector being defined by a corresponding complex plane phase angle θn(n-1, 2, …, m) to indicate the orientation of the sector, and a parameter Ln(n is 1, 2, …, m) to indicate the signal coverage distance of each sector, theoretically, any shape of signal coverage area can be accurately expressed as long as the value of m is large enough, but in practical application, the value of m and θ should be reasonably selectednIs determined by a trade-off in terms of accuracy and data volume. That is, in the present embodiment, θn(n-1, 2, …, m) and the corresponding Ln(n-1, 2, …, m) as effective signal coverage area information of a certain broadcasting station.
In one embodiment, the value of m may be determined with reference to the average coverage of the valid signal and the range where the edge position signal quality remains stable. For example, if the sector division is uniform, the average value of the transmission distances of an FM broadcast signal is measured as DAvAnd in the edge region covered by the signal, the strength of the signal in the range with the distance interval L is kept relatively stable through measurement, and then the value of m can be obtained by the formula m-2 pi DAvAnd calculating to obtain the/L. When the sectors are divided into non-uniform sectors, the actual size of each sector needs to be obtained sequentially through measurement in the edge area covered by the signals, and the signal coverage distance of each sector can be guaranteed to reflect the actual receiving effect really.
The method for the receiving end to obtain the broadcast site coverage information comprises the following steps:
as shown in table 1, table 1 is a coverage information schematic table of a certain broadcast station in a multi-frequency network.
TABLE 1
In this embodiment, the coverage information of each broadcast station in the multi-frequency network is in the form of information shown in table 1, and the broadcast station coverage information described in step S10 is configured, so that the broadcast station coverage information may be generated on a terminal, and then the broadcast station coverage information may be transmitted to a receiving end in a data transmission (wired transmission, wireless transmission) manner.
The second method for the receiving end to obtain the broadcast site coverage information is as follows:
in another optional embodiment of the present invention, each broadcasting station broadcasts different broadcasting station coverage information, and when a receiving end is in a broadcasting range of a certain broadcasting station, the broadcasting station coverage information broadcasted by the broadcasting station can be received. The broadcast site coverage information includes: the method comprises the steps of multi-frequency network numbering, current site information, neighbor site number N and neighbor site information. As shown in fig. 4, fig. 4 is a schematic format diagram of broadcast site coverage information broadcast by a certain broadcast site in a multi-frequency network. As shown in table 2, table 2 is a broadcast station coverage information schematic table broadcasted by a certain broadcast station in the multi-frequency network.
TABLE 2
The number of bits listed in fig. 4 and table 2 is only an example, and is not a fixed value, and is selected according to the needs in practical application.
In this embodiment, the current position information of the receiving end can be obtained by a common navigation positioning method.
Further, in an embodiment, after obtaining the current location information and the broadcast site coverage information of the receiving end by the above method, the step of determining the current sector of the receiving end based on the current location information and the broadcast site coverage information includes:
obtaining an azimuth angle of the receiving end relative to each broadcasting station according to the current position information and the position information of each broadcasting station contained in the broadcasting station coverage information;
and determining the current sector of the receiving end according to the azimuth angle of the receiving end relative to each broadcasting station and the sector division information of each broadcasting station contained in the broadcasting station coverage information.
In this embodiment, the current position information of the receiving end and the position information of the broadcast station can be obtained in a satellite positioning manner, and both belong to an ECEF coordinate system (geocentric geostationary coordinate system), an ENU coordinate system (east-north-sky coordinate system, i.e., a station center coordinate system) can be established by using the longitude and latitude coordinates of the broadcast station as an origin, and the ECEF coordinate of the receiving end is converted into the ENU coordinate system, so that data such as a baseline distance (i.e., a distance from the receiving end to the broadcast station), an azimuth angle, an elevation angle and the like can be conveniently obtained. The calculation process is a public technology and is not the focus of the description of the invention.
For example, the position information of each broadcast station included in the broadcast station coverage information is: location information of broadcast station a, location information of broadcast station B, and location information of broadcast station C. Based on the above calculation, the azimuth θ 1 of the receiver with respect to the broadcasting station a, the azimuth θ 2 of the receiver with respect to the broadcasting station B, and the azimuth θ 3 of the receiver with respect to the broadcasting station C can be obtained. The current sector of the receiving end is determined according to the sector division information of the broadcasting site a (the azimuth angle of each sector in the broadcasting site a and the coverage distance of each sector), the sector division information of the broadcasting site B (the azimuth angle of each sector in the broadcasting site B and the coverage distance of each sector) and the sector division information of the broadcasting site C (the azimuth angle of each sector in the broadcasting site C and the coverage distance of each sector) contained in the broadcasting site coverage information.
Step S20, determining an optimal broadcasting station according to the current sector, and receiving a broadcasting signal of the optimal broadcasting station.
In this embodiment, the step of determining the best broadcast station according to the current sector includes:
acquiring the number of the current sectors;
and if the number of the current located sectors is 1, taking the broadcast station to which the current located sectors belong as the optimal broadcast station.
In this embodiment, if it is determined that the number of sectors where the receiving end is currently located is 1 according to step S10, that is, the receiving end is only located in a certain sector of the broadcasting site a, the broadcasting site a is taken as the best broadcasting site; or the receiving end is only positioned in a certain sector of the broadcasting site B, and the broadcasting site B is taken as the optimal broadcasting site; or the receiving end is only in a certain sector of the broadcasting site C, the broadcasting site C is taken as the best broadcasting site.
In another embodiment, if the number of the current located sectors is greater than 1, the inbound scale of the receiving end relative to each current located sector is obtained according to the coverage distance of each current located sector and the distance between the receiving end and the broadcast station to which each current located sector belongs;
and taking the broadcasting station to which the current sector belongs corresponding to the maximum inbound size as the optimal broadcasting station.
In this embodiment, if it is determined that the number of the sectors currently located at the receiving end is greater than 1 according to step S10, for example, the receiving end is simultaneously located in the sector a1 of the broadcasting site a, the sector B1 of the broadcasting site B, and the sector C1 of the broadcasting site C. According to formula Kr＝Ln-SrAnd calculating to obtain the inbound dimension K of the receiving end relative to the sector a1aThe inbound dimension K of the receiving end relative to sector b1bAnd the inbound dimension K of the receiving end relative to sector c1c. Wherein L isnFor each sector coverage distance, SrThe distance of the receiving end to each broadcast site. It can be seen that the entry dimension KrReflects the degree of the receiving end entering the signal coverage area of the station, KrThe larger the signal, the higher the reliability of the received signal. Thus, from Ka、KbAnd KcAnd selecting a broadcast station with the largest value, and taking the broadcast station to which the corresponding current sector belongs as the optimal broadcast station. Can also be based on Ka、KbAnd KcSet the priorities of broadcast site a, broadcast site B and broadcast site C. E.g. Ka＜Kb＜KcThen the priority of broadcast site a < the priority of broadcast site B < the priority of broadcast site C.
In another embodiment of the present invention, the distance between the receiving end and each broadcasting station may be directly calculated, and the nearest broadcasting station is used as the best broadcasting station.
In this embodiment, based on the above method, after determining an optimal broadcast station, the step of receiving a broadcast signal of the optimal broadcast station includes:
detecting whether a broadcast signal is currently received, and if the broadcast signal is currently received, detecting whether a broadcast station corresponding to the currently received broadcast signal is the optimal broadcast station;
if the broadcast station corresponding to the currently received broadcast signal is not the optimal broadcast station, acquiring the signal frequency of the optimal broadcast station;
stopping receiving the current broadcast signal, and receiving the broadcast signal of the optimal broadcast station through the signal frequency of the optimal broadcast station.
In this embodiment, the signal frequency F of the optimal broadcasting station is obtained from the broadcasting station coverage information. If the broadcast signal is not received currently, the frequency of the receiving end is adjusted to F, and the broadcast signal of the best broadcast station is received.
If the broadcast signal is currently received, detecting whether a broadcast station corresponding to the currently received broadcast signal is the best broadcast station, and if not, switching the signal. That is, when the current receiving station is different from the best broadcasting station, the signal switching is performed.
The signal switching mode one:
receiving end first from broadcasting stationFinding the signal frequency F of the best site in the coverage information tabletThen stop the current station signal FcRe-using the new frequency FtReception is initiated.
If FtThe transmitter is shut down for reasons such as failure or maintenance, and F occurstIn case of signal reception failure, a rollback operation is executed, stopping FtIs received, starts FcBack to the original signal. And meanwhile, marking the station with the switching failure as an unavailable state. This way of switching is simple to implement and low cost, but the signal is interrupted during switching and there is a possibility of failure of switching.
And a second signal switching mode:
in one embodiment, the step of stopping receiving the current broadcast signal and receiving the broadcast signal of the best broadcast station through the signal frequency of the best broadcast station includes:
detecting whether the receiving end has a multi-channel simultaneous receiving function;
if the receiving end has a multi-channel simultaneous receiving function, receiving a current broadcast signal through a first receiving channel, and detecting whether a second receiving channel can receive the broadcast signal of the optimal broadcasting station through the signal frequency of the optimal broadcasting station;
if the second receiving channel can receive the broadcast signal of the optimal broadcast station through the signal frequency of the optimal broadcast station, stopping receiving the current broadcast signal through the first receiving channel, and receiving the broadcast signal of the optimal broadcast station through the second receiving channel at the signal frequency of the optimal broadcast station.
In this embodiment, if the receiving end has a function of receiving two or more channels simultaneously, one channel may be used as the main channel, and the current site F is kept oncReceiving the signal of (1); another is a secondary channel, trying to connect to the best broadcast site FtOf the signal of (1). If the sub-channel connection is successful, the sub-channel continues to operate as the main channel. The original main channel is switched to the auxiliary channel, and the next trigger signal is switchedAnd try to connect to the new site when the time comes. The identities of the main channel and the auxiliary channel can be switched at any time, and no rollback operation exists. The seamless switching with high reliability can be realized, and the signal can not be interrupted during the signal switching period.
In this embodiment, current position information and broadcast site coverage information of a receiving end are obtained, and a current sector of the receiving end is determined based on the current position information and the broadcast site coverage information; and determining an optimal broadcasting station according to the current sector, and receiving a broadcasting signal of the optimal broadcasting station. Through the embodiment, the optimal broadcasting station can be automatically selected for the receiving end based on the position of the receiving end and the coverage information of the broadcasting station, and the broadcasting signal of the optimal broadcasting station is received, so that the continuous availability of the wireless broadcasting service is ensured.
Further, in an embodiment of the broadcast station access method of the present invention, after step S20, the method further includes:
detecting whether the receiving end is in a moving state;
if the receiving end is in a moving state, setting a target time length, starting timing, acquiring new current position information and broadcasting site coverage information of the receiving end when the timing time length reaches the target time length, taking the new current position information and the broadcasting site coverage information as the current position information and the broadcasting site coverage information, and executing the step of determining the current located sector of the receiving end based on the current position information and the broadcasting site coverage information.
Wherein, if the receiving end is in a moving state, the step of setting a target duration and starting timing comprises:
and if the receiving end is in a moving state, acquiring the moving speed of the receiving end, setting a target duration based on the moving speed, and starting timing.
In this embodiment, the receiving end can obtain its own moving speed through the satellite positioning function, and dynamically adjust the trigger period of signal switching according to the moving speed, for example, the trigger period is not equal to 10 to 60 seconds (the faster the speed, the shorter the corresponding trigger period). The receiving end can switch the broadcasting stations in time to obtain signals with the best quality, and the risk of unstable signals caused by frequent switching is avoided.
When the trigger moment is reached, the receiving end repeats the steps from S10 to S20 to determine the current best station, and if the station currently receiving is the best station, the receiving end abandons the subsequent operation and waits for the next trigger; if the station currently being received is not the best station, a handover operation is performed.
Furthermore, an embodiment of the present invention further provides a computer-readable storage medium, where a broadcast station access program is stored on the computer-readable storage medium, and the broadcast station access program, when executed by a processor, implements the steps of the broadcast station access method described above.
The specific embodiment of the computer-readable storage medium of the present invention is substantially the same as the embodiments of the broadcast station access method described above, and details thereof are not repeated herein.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) as described above and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (7)
1. A broadcast station access method, characterized in that the broadcast station access method comprises the following steps:
acquiring current position information and broadcast site coverage information of a receiving end, and acquiring azimuth angles of the receiving end relative to each broadcast site according to the current position information and position information of each broadcast site contained in the broadcast site coverage information, wherein the broadcast site coverage information comprises a multi-frequency network number, signal frequencies of each broadcast site in a multi-frequency network, positions of each broadcast site and effective signal coverage area information of each broadcast site;
determining a current located sector of the receiving end according to the azimuth angle of the receiving end relative to each broadcasting station and sector division information of each broadcasting station contained in the broadcasting station coverage information;
acquiring the number of the current sectors;
if the number of the current located sectors is 1, taking the broadcasting station to which the current located sectors belong as an optimal broadcasting station, and receiving the broadcasting signals of the optimal broadcasting station;
and/or the presence of a gas in the gas,
if the number of the current located sectors is larger than 1, obtaining the inbound scale of the receiving end relative to each current located sector according to the coverage distance of each current located sector and the distance between the receiving end and the broadcasting station to which each current located sector belongs;
taking the broadcasting station to which the current sector belongs corresponding to the maximum entry scale as the optimal broadcasting station; and receiving a broadcast signal of the optimal broadcast station.
2. The broadcast station access method of claim 1, wherein the step of receiving the broadcast signal of the optimal broadcast station comprises:
detecting whether a broadcast signal is currently received, and if the broadcast signal is currently received, detecting whether a broadcast station corresponding to the currently received broadcast signal is the optimal broadcast station;
if the broadcast station corresponding to the currently received broadcast signal is not the optimal broadcast station, acquiring the signal frequency of the optimal broadcast station;
stopping receiving the current broadcast signal, and receiving the broadcast signal of the optimal broadcast station through the signal frequency of the optimal broadcast station.
3. The broadcast station access method of claim 2, wherein the step of stopping receiving the current broadcast signal and receiving the broadcast signal of the optimal broadcast station through the signal frequency of the optimal broadcast station comprises:
detecting whether the receiving end has a multi-channel simultaneous receiving function;
if the receiving end has a multi-channel simultaneous receiving function, receiving a current broadcast signal through a first receiving channel, and detecting whether a second receiving channel can receive the broadcast signal of the optimal broadcasting station through the signal frequency of the optimal broadcasting station;
if the second receiving channel can receive the broadcast signal of the optimal broadcast station through the signal frequency of the optimal broadcast station, stopping receiving the current broadcast signal through the first receiving channel, and receiving the broadcast signal of the optimal broadcast station through the second receiving channel at the signal frequency of the optimal broadcast station.
4. The broadcast station access method of any one of claims 1 to 3, wherein the step of receiving the broadcast signal of the optimal broadcast station is followed by further comprising:
detecting whether the receiving end is in a moving state;
if the receiving end is in a moving state, setting a target time length, starting timing, acquiring new current position information and broadcasting site coverage information of the receiving end when the timing time length reaches the target time length, taking the new current position information and the broadcasting site coverage information as the current position information and the broadcasting site coverage information, and executing the step of determining the current located sector of the receiving end based on the current position information and the broadcasting site coverage information.
5. The method as claimed in claim 4, wherein the step of setting a target duration and starting timing if the receiver is in a moving state comprises:
and if the receiving end is in a moving state, acquiring the moving speed of the receiving end, setting a target duration based on the moving speed, and starting timing.
6. A receiving end, comprising: memory, processor and a broadcast site access program stored on the memory and executable on the processor, the broadcast site access program when executed by the processor implementing the steps of the broadcast site access method according to any of claims 1 to 5.
7. A computer-readable storage medium, having a broadcast station access program stored thereon, which when executed by a processor, implements the steps of the broadcast station access method of any one of claims 1 to 5.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811065537.0A CN109168133B (en) | 2018-09-12 | 2018-09-12 | Broadcast station access method, receiving end and computer readable storage medium |
| PCT/CN2018/106415 WO2020051938A1 (en) | 2018-09-12 | 2018-09-19 | Broadcast station access method, receiving end and computer-readable storage medium |
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| CN201811065537.0A CN109168133B (en) | 2018-09-12 | 2018-09-12 | Broadcast station access method, receiving end and computer readable storage medium |
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| CN109168133A (en) | 2019-01-08 |
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