CN110912631A - CDR broadcast station switching method and device and CDR receiving terminal - Google Patents
CDR broadcast station switching method and device and CDR receiving terminal Download PDFInfo
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- CN110912631A CN110912631A CN201811082192.XA CN201811082192A CN110912631A CN 110912631 A CN110912631 A CN 110912631A CN 201811082192 A CN201811082192 A CN 201811082192A CN 110912631 A CN110912631 A CN 110912631A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/10—Arrangements for replacing or switching information during the broadcast or the distribution
- H04H20/106—Receiver-side switching
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
- H04H60/09—Arrangements for device control with a direct linkage to broadcast information or to broadcast space-time; Arrangements for control of broadcast-related services
Abstract
The embodiment of the invention provides a CDR broadcast station switching method, a device and a CDR receiving terminal, wherein the method comprises the following steps: receiving data packets sent by the at least two CDR broadcast stations, wherein the data packets are provided with time sequence labels which are used for identifying the time sequence of the data packets; and controlling the switching of the CDR broadcasting station according to the signal factors of the data packet and the time sequence label in the data packet. The embodiment of the invention can accurately realize the switching of the CDR broadcast station.
Description
Technical Field
The embodiment of the invention relates to the technical field of communication, in particular to a CDR broadcast station switching method and device and a CDR receiving terminal.
Background
CDR (Convergent Digital Radio, also called as chinese Digital broadcasting) is applied to the field of chinese Digital Audio broadcasting, and the chinese Digital broadcasting adopts DRA + (Digital Rise Audio) encoding technology.
In CDR application, a CDR data service server sends data source information to CDR broadcasting stations arranged in each area, the CDR broadcasting stations process the data source information and then broadcast the data source information, and a CDR receiving terminal receives CDR signals broadcast by the CDR broadcasting stations and outputs the processed CDR signals to users. In the prior art, because the time delay generated by data transmission between the CDR data service server and each CDR broadcasting station is unequal, for example, the time delay caused by different transmission distances or different data processing speeds of devices performing data transmission is unequal, the time for transmitting data source information from the CDR data service server to each CDR broadcasting station is different, and the content broadcast by each CDR broadcasting station has a certain time difference. When a CDR receiving terminal performs CDR broadcasting station handover, the received data information may be overlapped or lost.
Disclosure of Invention
The embodiment of the invention provides a CDR broadcast station switching method, a CDR broadcast station switching device and a CDR receiving terminal, and aims to solve the problem that data information received by the CDR receiving terminal when the CDR broadcast stations are switched is overlapped or lost due to unequal distances for data transmission between a CDR data service server and each CDR broadcast station.
In a first aspect, an embodiment of the present invention provides a CDR broadcast station switching method, where the method is applied to a CDR receiving terminal, where the CDR receiving terminal is located in a signal coverage area of at least two CDR broadcast stations, and the method includes:
receiving data packets sent by the at least two CDR broadcast stations, wherein the data packets are provided with time sequence labels which are used for identifying the time sequence of the data packets;
and controlling the switching of the CDR broadcasting station according to the signal factors of the data packet and the time sequence label in the data packet.
In a second aspect, an embodiment of the present invention provides a CDR broadcast station switching apparatus, where the apparatus is applied to a CDR receiving terminal, where the CDR receiving terminal is located in a signal coverage area of at least two CDR broadcast stations, and the apparatus includes:
a receiving module, configured to receive a data packet sent by the at least two CDR broadcast stations, where a timing sequence tag is set in the data packet, and the timing sequence tag is used to identify a timing sequence of the data packet;
and the switching module is used for controlling the switching of the CDR broadcasting station according to the signal factors of the data packet and the time sequence label in the data packet.
In a third aspect, an embodiment of the present invention provides a CDR receiving terminal, including a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor implements, when executing the computer program, the steps in the CDR broadcasting station switching method provided in the embodiment of the present invention.
In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements the steps in the CDR broadcast station switching method provided by the embodiment of the present invention.
In the embodiment of the present invention, by receiving a data packet sent by the at least two CDR broadcasting stations, a timing sequence tag is set in the data packet, and the timing sequence tag is used for identifying a timing sequence of the data packet; and controlling the switching of the CDR broadcasting stations according to the signal factors of the data packet and the time sequence labels in the data packet, thereby accurately realizing the switching of the CDR broadcasting stations.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a flowchart of a CDR broadcast station switching method according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a CDR receiving terminal switching operation broadcasting station according to an embodiment of the present invention;
fig. 3 is a schematic diagram of another CDR receiving terminal switching operation broadcasting station provided in the embodiment of the present invention;
fig. 4 is a schematic diagram of another CDR receiving terminal switching operation broadcasting station provided in the embodiment of the present invention;
fig. 5 is a schematic diagram of another CDR receiving terminal switching operation broadcasting station according to the embodiment of the present invention;
fig. 6 is a schematic structural diagram of a CDR broadcasting station switching apparatus according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of another CDR broadcasting station switching apparatus according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of another CDR broadcasting station switching apparatus according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of another CDR broadcasting station switching apparatus according to an embodiment of the present invention;
fig. 10 is a schematic structural diagram of a CDR receiving terminal according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the embodiment of the invention, the CDR data service server sends the data packet provided with the time sequence label to the CDR broadcast stations arranged in each area, the CDR broadcast stations process the received data packet provided with the time sequence label into CDR signals and then broadcast the CDR signals in a preset range, and the CDR receiving terminals in the coverage range of the CDR signals broadcast by the CDR broadcast stations receive the CDR signals and output the CDR signals to users after processing.
Referring to fig. 1, fig. 1 is a flowchart of a CDR broadcasting station switching method provided in an embodiment of the present invention, where the method is applied to a CDR receiving terminal, and the CDR receiving terminal is located in a signal coverage area of at least two CDR broadcasting stations, as shown in fig. 1, the method includes:
Wherein, the at least two CDR broadcast stations can comprise the current working broadcast station of the CDR receiving terminal, and the CDR receiving terminal receives the data packet of the working broadcast station and provides the processed data packet to the user. The data packet may be a data packet in the satellite navigation ground-based augmentation information data, or a data packet in the advertisement information, or an audio data packet, and the content category of the data packet is not limited in the embodiment of the present invention. Taking the satellite navigation ground-based augmentation information data as an example, the satellite navigation ground-based augmentation information may be cut into data packets according to a fixed size, or a set including information in a preset format may be taken as one data packet, for example, an information set including a data packet header, ground-based augmentation information, satellite navigation information, a ground-based augmentation system receiving mode, and a data format of a data packet tail is taken as one data packet, which is not limited in the embodiment of the present invention. The timing tag may be disposed in the header of the data packet, or may be disposed in another location of the data packet. The timing tag may include sequence numbers, such as first sequence number 001, second sequence number 002, and so on, or first sequence number 0001, second sequence number 0002, and so on, which may be used to identify the timing of the packet; time and sequence numbers may also be included, which are used to identify the timing of the data packets; the time sequence tag may also include english letters, such as a, B, C, etc., which represent time sequences, and the embodiment of the present invention is not limited to the specific representation form of the time sequence tag.
And step 102, controlling the switch of the CDR broadcast station according to the signal factors of the data packet and the time sequence label in the data packet.
The data packet may be a data packet received by way of a CDR signal, and the signal factor of the data packet may include the signal strength of the CDR signal, or may include the signal quality of the CDR signal, or both the signal strength and the signal quality of the CDR signal, where the signal strength may be represented by a signal level and the signal quality may be represented by a signal-to-noise ratio of the signal. The controlling of the switching of the CDR broadcasting stations according to the signal factors of the data packets and the timing sequence tags in the data packets may be that, the signal factors of the data packets sent by the at least two CDR broadcasting stations are compared, taking the example that the signal factors of the data packets include signal strength, if the signal strength of the data packets sent by the working broadcasting station of the CDR receiving terminal is weaker than the signal strength of the data packets sent by the non-working broadcasting station, whether the timing sequence tags in the data packets of the non-working broadcasting station and the timing sequence tags in the data packets of the working broadcasting station are continuous is determined, and if the signal strength of the data packets is continuous, the non-working broadcasting station is switched to the working broadcasting station; or, it may be determined whether a signal factor of a data packet sent by the non-working station reaches a preset condition, and if the signal factor reaches the preset condition, it is determined whether a timing sequence tag in the data packet of the non-working broadcast station and a timing sequence tag in the data packet of the working broadcast station are consecutive, and if the timing sequence tags are consecutive, the non-working broadcast station is switched to the working broadcast station.
By setting the time sequence label in the data packet, the CDR receiving terminal can switch the working broadcasting stations according to the time sequence label, thereby solving the problem that the data information received by the CDR receiving terminal when the CDR broadcasting stations are switched is overlapped or lost due to unequal distances for data transmission between the CDR data service server and each CDR broadcasting station, and accurately realizing the switching of the CDR broadcasting stations.
Optionally, the timing tag includes a serial number and/or a time.
The time sequence label may include a serial number and/or a time when the time sequence label is set, where the time may include year, month, day, hour, minute and second, or may include hour, minute and second, and so on. When the time sequence tag includes a serial number and time, the presentation form of the time sequence tag may be time + serial number, and taking time as hour, minute and second as an example, the time sequence tag may be: 12:40:20-001, or can be: 124020-: 124020001, etc., wherein 001 is the serial number. The expression form of the timing tag may be changed arbitrarily, which is not limited in the embodiment of the present invention.
By setting a time sequence label comprising a sequence number and time, on one hand, a CDR receiving terminal can switch a working broadcasting station according to the sequence number and the time in the data packet, and on the other hand, the time delay of the data packet can be tested according to the time value in the data packet; the intensity of data on the time line can be visually displayed, for example, one day is divided into a plurality of time periods, and the number of data packets in the plurality of time periods is counted; data rate monitoring may also be performed based on the time, such as counting the number of packets per unit time, etc.
Optionally, the time sequence tag includes a serial number, the at least two CDR broadcast stations include an original CDR broadcast station and a target CDR broadcast station, the data packet includes a first data packet sent by the original CDR broadcast station and a second data packet sent by the target CDR broadcast station, and the controlling of the switching of the CDR broadcast stations according to the signal factor of the data packet and the time sequence tag in the data packet includes:
judging whether the signal factor of the second data packet reaches a preset condition or not;
if the signal factor of the second data packet reaches a preset condition, judging whether a first sequence number in the first data packet and a second sequence number in the second data packet are continuous or not;
and if the first sequence number is continuous with the second sequence number, switching from the original CDR broadcast station to the target CDR broadcast station.
The original CDR broadcast station is the current working broadcast station of the CDR receiving terminal, the CDR receiving terminal receives the data packet of the working broadcast station and provides the data packet to a user after processing, and the target CDR broadcast station is the working broadcast station for the CDR receiving terminal to prepare switching. The determining whether the signal factor of the second data packet reaches the preset condition may be determining whether the signal strength of the second data packet reaches a preset threshold, or may be determining whether the signal quality of the second data packet reaches a preset threshold, or may be determining whether both the signal strength and the signal quality of the second data packet reach a preset threshold. The first serial number and the second serial number are consecutive, and specifically, the value of the first serial number and the value of the second serial number may be consecutive, for example, if the first serial number is 002 and the second serial number is 003, the first serial number and the second serial number are consecutive.
As shown in fig. 2, the CDR receiving terminal moves from the original CDR broadcasting station to the target CDR broadcasting station, and at point a shown in the figure, the signal factor of the second data packet reaches the preset condition, and at point B shown in the figure, the first sequence number in the first data packet is consecutive to the second sequence number in the second data packet, so that the working broadcasting station is switched to the target CDR broadcasting station at point B shown in the figure.
And switching the working broadcasting stations by judging the continuity of the signal factors and the serial numbers of the second data packets, thereby further accurately switching the broadcasting stations.
Optionally, if the first sequence number is consecutive to the second sequence number, switching from the original CDR broadcasting station to the target CDR broadcasting station includes:
if the second sequence number is less than or equal to the first sequence number, stopping receiving the data packet sent by the original CDR broadcast station, wherein the value of the first sequence number is a first switching value;
and continuing to receive the data packet sent by the target CDR broadcast station, and switching from the original CDR broadcast station to the target CDR broadcast station if the sequence number in the data packet sent by the target CDR broadcast station is continuous with the first switching value.
As shown in fig. 3, taking the form of the time sequence tag as the time-sequence number as an example, when the signal factor of the second data packet received by the CDR receiving terminal meets the preset condition, when a working broadcast station is to be switched, the time sequence tag in the data packet received by the original CDR broadcast station is 12:40:20-005, the data packet sent by the target CDR broadcast station starts to be buffered, the value of the time sequence tag in the buffered first second data packet is 12:40:19-004, the value of the second sequence number is 004, which is smaller than the value 005 of the first sequence number, at this time, the data sent by the target CDR broadcast station is delayed compared with the original CDR broadcast station, and therefore, if direct switching is performed, partial data overlap occurs. In the embodiment of the present invention, the receiving of the first data packet is stopped, wherein the value 005 of the first sequence number is the first handover value. And if the sequence number of the cached second data packet is 006, switching from the original CDR broadcast station to the target CDR broadcast station, and discarding the received data packets with the second sequence numbers of 004 and 005.
Stopping receiving a data packet sent by an original CDR broadcast station under the condition that a second sequence number is smaller than or equal to a first sequence number, wherein the value of the first sequence number is a first switching value; and continuing to receive the data packet sent by the target CDR broadcast station, and if the sequence number in the data packet sent by the target CDR broadcast station is continuous with the first switching value, switching from the original CDR broadcast station to the target CDR broadcast station, thereby further and accurately realizing the switching of the CDR broadcast station.
Optionally, if the first sequence number is consecutive to the second sequence number, switching from the original CDR broadcasting station to the target CDR broadcasting station includes:
if the second sequence number is greater than the first sequence number and is not continuous with the first sequence number, continuing to receive the data packet sent by the original CDR broadcast station until the sequence number in the data packet sent by the original CDR broadcast station is continuous with the second switching value, wherein the value of the second sequence number is the second switching value;
storing the second data packet;
and if the sequence number in the data packet sent by the current original CDR broadcast station is continuous with the second switching value, switching from the original CDR broadcast station to the target CDR broadcast station.
As shown in fig. 4, taking the form of the time-sequence number as an example, when the signal factor of the second data packet received by the CDR receiving terminal meets the preset condition, when a working broadcasting station is to be switched, the time-sequence number of the data packet received by the original CDR broadcasting station is 12:40:20-005, the data packet transmitted by the target CDR broadcasting station starts to be buffered, the value of the time-sequence number of the buffered first and second data packets is 12:40:28-008, the value of the second sequence number is 008, is greater than the value of the first sequence number 005, and is discontinuous with the first sequence number, at this time, the data transmitted by the original CDR broadcasting station is delayed compared with the target CDR broadcasting station, and therefore, if the direct switching results in data loss. In the embodiment of the present invention, the first data packet continues to be received until the sequence number of the first data packet is 007, which is consecutive to the second handover value 008, and the second data packet is stored, and the working broadcasting station is handed over from the original CDR broadcasting station to the target CDR broadcasting station.
Under the condition that a second sequence number is larger than the first sequence number and is not continuous with the first sequence number, continuing to receive the data packet sent by the original CDR broadcast station until the sequence number in the data packet sent by the original CDR broadcast station is continuous with the second switching value, wherein the value of the second sequence number is the second switching value; storing the second data packet; and if the sequence number in the data packet sent by the current original CDR broadcast station is continuous with the second switching value, switching from the original CDR broadcast station to the target CDR broadcast station, thereby further and accurately realizing the switching of the CDR broadcast station.
Optionally, if the first sequence number is consecutive to the second sequence number, switching from the original CDR broadcasting station to the target CDR broadcasting station includes:
if the second sequence number is greater than the first sequence number and is consecutive to the first sequence number, switching from the original CDR broadcast station to the target CDR broadcast station.
As shown in fig. 5, taking the form of the time sequence tag as the time-sequence number as an example, when the signal factor of the second data packet received by the CDR receiving terminal meets the preset condition, when the working broadcasting station is to be switched, the time sequence tag in the data packet received by the original CDR broadcasting station is 12:40:20-005, the data packet sent by the target CDR broadcasting station starts to be buffered, the value of the time sequence tag in the buffered first second data packet is 12:40:28-006, the value of the second sequence number is 006, the second sequence number is greater than the first sequence number and is consecutive to the first sequence number, and the working broadcasting station is switched from the original CDR broadcasting station to the target CDR broadcasting station.
And under the condition that the second serial number is greater than the first serial number and is continuous with the first serial number, switching the working broadcasting station from the original CDR broadcasting station to the target CDR broadcasting station, thereby further and accurately realizing the switching of the CDR broadcasting station.
Referring to fig. 6, fig. 6 is a schematic structural diagram of a CDR broadcasting station switching apparatus according to an embodiment of the present invention, where the apparatus is applied to a CDR receiving terminal, and the CDR receiving terminal is located in a signal coverage area of at least two CDR broadcasting stations, as shown in fig. 6, the apparatus 600 includes:
a receiving module 601, configured to receive a data packet sent by the at least two CDR broadcasting stations, where the data packet is provided with a timing sequence tag, and the timing sequence tag is used to identify a timing sequence of the data packet;
a switching module 602, configured to control switching of a CDR broadcasting station according to the signal factor of the data packet and the timing tag in the data packet.
Optionally, the timing tag includes a serial number and/or a time.
Optionally, as shown in fig. 7, the timing tag includes a serial number, the at least two CDR broadcasting stations include an original CDR broadcasting station and a target CDR broadcasting station, the data packet includes a first data packet sent by the original CDR broadcasting station and a second data packet sent by the target CDR broadcasting station, and the switching module 602 includes:
a first judging unit 6021, configured to judge whether a signal factor of the second data packet reaches a preset condition;
a second determining unit 6022, configured to determine whether a first sequence number in the first data packet and a second sequence number in the second data packet are consecutive if the signal factor of the second data packet meets a preset condition;
a handover unit 6023 configured to handover from the original CDR broadcasting station to the target CDR broadcasting station if the first sequence number and the second sequence number are consecutive.
Optionally, as shown in fig. 8, the switching unit 6023 includes:
a stopping subunit 60231, configured to stop receiving the data packet sent by the original CDR broadcast station if the second sequence number is less than or equal to the first sequence number, where a value of the first sequence number is a first handover value;
a first switching subunit 60232, configured to continue to receive the data packet sent by the target CDR broadcast station, and switch from the original CDR broadcast station to the target CDR broadcast station if the sequence number in the data packet sent by the target CDR broadcast station is consecutive to the first switching value.
Optionally, as shown in fig. 9, the switching unit 6023 includes:
a receiving subunit 60233, configured to, if the second sequence number is greater than the first sequence number and is not consecutive to the first sequence number, continue to receive the data packet sent by the original CDR broadcasting station until the sequence number in the data packet sent by the original CDR broadcasting station is consecutive to the second handover value, where a value of the second sequence number is the second handover value;
a storage subunit 60234, configured to store the second packet;
a second handover subunit 60235, configured to, if the sequence number in the data packet sent by the current original CDR broadcast station is consecutive to the second handover value, handover from the original CDR broadcast station to the target CDR broadcast station.
Optionally, the switching unit 6023 is configured to switch from the original CDR broadcasting station to the target CDR broadcasting station if the second sequence number is greater than the first sequence number and is consecutive to the first sequence number.
It should be noted that, this embodiment is an implementation of the CDR broadcast station switching apparatus corresponding to the embodiment shown in fig. 1, and specific implementations thereof may refer to the same descriptions of the embodiment shown in fig. 1, so that, in order to avoid repeated descriptions, the embodiment is not described again, and the same beneficial effects may be achieved.
Referring to fig. 10, fig. 10 is a schematic structural diagram of a CDR receiving terminal according to an embodiment of the present invention, and as shown in fig. 10, the CDR receiving terminal includes: a memory 1001, a processor 1000 and a computer program stored on said memory 1001 and executable on said processor 1000, said CDR receiving terminal being located within the signal coverage of at least two CDR broadcasting stations, wherein:
the processor 1000 is configured to read a program in the memory 1001, and perform the following processes:
receiving data packets sent by the at least two CDR broadcast stations, wherein the data packets are provided with time sequence labels which are used for identifying the time sequence of the data packets;
and controlling the switching of the CDR broadcasting station according to the signal factors of the data packet and the time sequence label in the data packet.
In fig. 10, the bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by processor 1000 and various circuits of memory represented by memory 1001 being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface.
The processor 1000 is responsible for managing the bus architecture and general processing, and the memory 1001 may store data used by the processor 1000 in performing operations.
It should be noted that the memory 1001 is not limited to be located only on the CDR receiving terminal, and the memory 1001 and the processor 1000 may be separated and located in different geographical locations.
Optionally, the timing tag includes a serial number and/or a time.
Optionally, the timing tag includes a serial number, the at least two CDR broadcast stations include an original CDR broadcast station and a target CDR broadcast station, the data packet includes a first data packet sent by the original CDR broadcast station and a second data packet sent by the target CDR broadcast station, and the switching of the CDR broadcast stations is controlled by the processor 1000 according to a signal factor of the data packet and the timing tag in the data packet, including:
judging whether the signal factor of the second data packet reaches a preset condition or not;
if the signal factor of the second data packet reaches a preset condition, judging whether a first sequence number in the first data packet and a second sequence number in the second data packet are continuous or not;
and if the first sequence number is continuous with the second sequence number, switching from the original CDR broadcast station to the target CDR broadcast station.
Optionally, the switching from the original CDR broadcasting station to the target CDR broadcasting station if the first sequence number and the second sequence number are consecutive performed by the processor 1000 includes:
if the second sequence number is less than or equal to the first sequence number, stopping receiving the data packet sent by the original CDR broadcast station, wherein the value of the first sequence number is a first switching value;
and continuing to receive the data packet sent by the target CDR broadcast station, and switching from the original CDR broadcast station to the target CDR broadcast station if the sequence number in the data packet sent by the target CDR broadcast station is continuous with the first switching value.
Optionally, the switching from the original CDR broadcasting station to the target CDR broadcasting station if the first sequence number and the second sequence number are consecutive performed by the processor 1000 includes:
if the second sequence number is greater than the first sequence number and is not continuous with the first sequence number, continuing to receive the data packet sent by the original CDR broadcast station until the sequence number in the data packet sent by the original CDR broadcast station is continuous with the second switching value, wherein the value of the second sequence number is the second switching value;
storing the second data packet;
and if the sequence number in the data packet sent by the current original CDR broadcast station is continuous with the second switching value, switching from the original CDR broadcast station to the target CDR broadcast station.
Optionally, the switching from the original CDR broadcasting station to the target CDR broadcasting station if the first sequence number and the second sequence number are consecutive performed by the processor 1000 includes:
if the second sequence number is greater than the first sequence number and is consecutive to the first sequence number, switching from the original CDR broadcast station to the target CDR broadcast station.
It should be noted that, in this embodiment, the CDR receiving terminal may be a CDR receiving terminal corresponding to any implementation manner in the method embodiment of the present invention, and any implementation manner of the CDR receiving terminal in the method embodiment of the present invention may be implemented by the CDR receiving terminal in this embodiment, and the same beneficial effects are achieved, and details are not described here.
The embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process of the CDR broadcast station switching method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.
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 apparatus 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 apparatus. 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 apparatus that comprises the element.
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 solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as 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.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A CDR broadcast station switching method applied to a CDR receiving terminal located within signal coverage of at least two CDR broadcast stations, the method comprising:
receiving data packets sent by the at least two CDR broadcast stations, wherein the data packets are provided with time sequence labels which are used for identifying the time sequence of the data packets;
and controlling the switching of the CDR broadcasting station according to the signal factors of the data packet and the time sequence label in the data packet.
2. The method of claim 1, wherein the timing label comprises a sequence number and/or a time.
3. The method of claim 2, wherein the timing tag comprises a sequence number, the at least two CDR broadcast stations comprise an original CDR broadcast station and a target CDR broadcast station, the data packets comprise a first data packet transmitted by the original CDR broadcast station and a second data packet transmitted by the target CDR broadcast station;
the controlling the switch of the CDR broadcast station according to the signal factors of the data packet and the time sequence label in the data packet comprises the following steps:
judging whether the signal factor of the second data packet reaches a preset condition or not;
if the signal factor of the second data packet reaches a preset condition, judging whether a first sequence number in the first data packet and a second sequence number in the second data packet are continuous or not;
and if the first sequence number is continuous with the second sequence number, switching from the original CDR broadcast station to the target CDR broadcast station.
4. The method of claim 3, wherein said switching from said original CDR broadcast station to said target CDR broadcast station if said first sequence number is consecutive to said second sequence number comprises:
if the second sequence number is less than or equal to the first sequence number, stopping receiving the data packet sent by the original CDR broadcast station, wherein the value of the first sequence number is a first switching value;
and continuing to receive the data packet sent by the target CDR broadcast station, and switching from the original CDR broadcast station to the target CDR broadcast station if the sequence number in the data packet sent by the target CDR broadcast station is continuous with the first switching value.
5. The method of claim 3, wherein said switching from said original CDR broadcast station to said target CDR broadcast station if said first sequence number is consecutive to said second sequence number comprises:
if the second sequence number is greater than the first sequence number and is not continuous with the first sequence number, continuing to receive the data packet sent by the original CDR broadcast station until the sequence number in the data packet sent by the original CDR broadcast station is continuous with the second switching value, wherein the value of the second sequence number is the second switching value;
storing the second data packet;
and if the sequence number in the data packet sent by the current original CDR broadcast station is continuous with the second switching value, switching from the original CDR broadcast station to the target CDR broadcast station.
6. The method of claim 3, wherein said switching from said original CDR broadcast station to said target CDR broadcast station if said first sequence number is consecutive to said second sequence number comprises:
if the second sequence number is greater than the first sequence number and is consecutive to the first sequence number, switching from the original CDR broadcast station to the target CDR broadcast station.
7. An apparatus for CDR broadcasting station switching, the apparatus being applied to a CDR receiving terminal located within a signal coverage area of at least two CDR broadcasting stations, the apparatus comprising:
a receiving module, configured to receive a data packet sent by the at least two CDR broadcast stations, where a timing sequence tag is set in the data packet, and the timing sequence tag is used to identify a timing sequence of the data packet;
and the switching module is used for controlling the switching of the CDR broadcasting station according to the signal factors of the data packet and the time sequence label in the data packet.
8. The apparatus of claim 7, wherein the timing tag comprises a serial number and a time.
9. The apparatus of claim 8, wherein the timing tag comprises a sequence number, wherein the at least two CDR broadcast stations comprise an original CDR broadcast station and a target CDR broadcast station, wherein the data packets comprise a first data packet sent by the original CDR broadcast station and a second data packet sent by the target CDR broadcast station, and wherein the handover module comprises:
the first judging unit is used for judging whether the signal factor of the second data packet reaches a preset condition or not;
a second determining unit, configured to determine whether a first sequence number in the first data packet and a second sequence number in the second data packet are consecutive if a signal factor of the second data packet reaches a preset condition;
a switching unit, configured to switch from the original CDR broadcast station to the target CDR broadcast station if the first sequence number and the second sequence number are consecutive.
10. A CDR receiving terminal comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the steps in the CDR broadcast station switching method of any one of claims 1 to 6 when executing the computer program.
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| CN201811082192.XA CN110912631A (en) | 2018-09-17 | 2018-09-17 | CDR broadcast station switching method and device and CDR receiving terminal |
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| CN1602644A (en) * | 2001-10-24 | 2005-03-30 | 高通股份有限公司 | Method and system for hard handoff in a broadcast communication system |
| CN101227745A (en) * | 2008-02-02 | 2008-07-23 | 华为软件技术有限公司 | System, apparatus and method for switching network of mobile multimedia business |
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| CN1124552A (en) * | 1994-02-09 | 1996-06-12 | Ntt移动通信网株式会社 | Method and system for CDMA mobile radio communication |
| CN1602644A (en) * | 2001-10-24 | 2005-03-30 | 高通股份有限公司 | Method and system for hard handoff in a broadcast communication system |
| CN101227745A (en) * | 2008-02-02 | 2008-07-23 | 华为软件技术有限公司 | System, apparatus and method for switching network of mobile multimedia business |
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