CN112532257B - Broadcast signal control method, apparatus, signal transmitting device and storage medium - Google Patents
Broadcast signal control method, apparatus, signal transmitting device and storage medium Download PDFInfo
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- CN112532257B CN112532257B CN202011228702.7A CN202011228702A CN112532257B CN 112532257 B CN112532257 B CN 112532257B CN 202011228702 A CN202011228702 A CN 202011228702A CN 112532257 B CN112532257 B CN 112532257B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
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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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The present application relates to the field of communications, and in particular, to a broadcast signal control method, apparatus, signal transmitting device, and storage medium. The method comprises the following steps: acquiring a signal to be broadcasted; determining the number of antennas of directional antennas of signal transmitting equipment, wherein the signal transmitting equipment is used for broadcasting signals to be broadcasted, the number of the antennas of the directional antennas is at least two, and the signal transmitting directions of the directional antennas are different; determining target broadcast parameters for broadcasting the signals to be broadcast according to the number of the antennas; and controlling at least two directional antennas to broadcast the signals to be broadcast in different transmitting directions through a change-over switch of the signal transmitting equipment based on the target broadcast parameters. By adopting the method, the signal intensity can be improved under the condition of not increasing the density of the signal transmitting device.
Description
Technical Field
The present application relates to the field of communications, and in particular, to a broadcast signal control method, apparatus, signal transmitting device, and storage medium.
Background
With the development of information technology, signals are widely used in various applications such as data transmission and real-time positioning. When the signal is used for positioning, the strength of the signal directly influences the accuracy of positioning.
In a conventional manner, the strength of a signal is generally increased by increasing the deployment density of signal emitting devices, so as to improve the accuracy of positioning. However, in the process of installing the signal transmitting device, the construction cost and other problems need to be considered, and due to the influence of the construction cost, it is not desirable to increase the signal strength by increasing the deployment density of the signal transmitting device.
Therefore, how to improve the signal strength without increasing the density of the signal transmitting devices is an urgent problem to be solved.
Disclosure of Invention
In view of the above, it is necessary to provide a broadcast signal control method, a device, a signal transmitting apparatus, and a storage medium capable of improving signal strength without increasing the density of signal transmitting devices.
A broadcast signal control method, the method comprising:
acquiring a signal to be broadcasted;
determining the number of antennas of directional antennas of signal transmitting equipment, wherein the signal transmitting equipment is used for broadcasting signals to be broadcasted, the number of the antennas of the directional antennas is at least two, and the signal transmitting directions of the directional antennas are different;
determining target broadcast parameters for broadcasting the signals to be broadcast according to the number of the antennas;
and controlling at least two directional antennas to broadcast the signals to be broadcast in different transmitting directions through a change-over switch of the signal transmitting equipment based on the target broadcast parameters.
In one embodiment, determining target broadcast parameters for broadcasting a signal to be broadcast according to the number of antennas includes:
acquiring initial broadcast parameters of a signal to be broadcast transmitted by signal transmitting equipment;
and determining target broadcast parameters for broadcasting the signals to be broadcast according to the initial broadcast parameters and the number of the antennas.
In one embodiment, controlling at least two directional antennas to broadcast signals to be broadcast in different transmission directions by a switch of a signal transmitting apparatus according to broadcast parameters includes:
determining a preset switching frequency of a change-over switch of the control signal transmitting equipment according to the number of the antennas;
and controlling the change-over switch to change over according to a preset change-over frequency so as to determine a target directional antenna from the at least two directional antennas, and broadcasting the signal to be broadcasted according to the target broadcasting parameters through the target directional antenna.
In one embodiment, determining a target directional antenna from at least two directional antennas, and broadcasting a signal to be broadcast through the target directional antenna according to a target broadcast parameter includes:
determining a target directional antenna from at least two directional antennas through a change-over switch, and broadcasting a signal to be broadcasted according to a target broadcasting parameter through the target directional antenna;
modifying the signal to be broadcasted according to a preset value to obtain a modified signal to be broadcasted;
re-determining a target directional antenna from non-target directional antennas in the at least two directional antennas through a change-over switch, and controlling the re-determined target directional antenna to broadcast the modified signal to be broadcast according to the target broadcast parameters;
and continuously modifying the signal to be broadcasted, and continuously re-determining the target directional antenna to broadcast the modified signal to be broadcasted until at least two directional antennas finish the broadcasting of the signal to be broadcasted.
In one embodiment, determining a target directional antenna from at least two directional antennas through a switch, and broadcasting a signal to be broadcast through the target directional antenna according to target broadcast parameters includes:
generating a control instruction through a change-over switch, and awakening the target directional antenna in a dormant state according to the control instruction;
and broadcasting the signal to be broadcasted through the awakened target directional antenna according to the target broadcasting parameters, and switching to a dormant state after broadcasting for a preset time.
A broadcast signal control apparatus, the apparatus comprising:
the broadcast signal acquisition module is used for acquiring a broadcast signal;
the device comprises an antenna number determining module, a signal transmitting device and a signal receiving module, wherein the antenna number determining module is used for determining the antenna number of directional antennas of the signal transmitting device, the signal transmitting device is used for broadcasting signals to be broadcasted, the number of the directional antennas is at least two, and the signal transmitting directions of the directional antennas are different;
the target broadcast parameter determining module is used for determining target broadcast parameters for broadcasting the signals to be broadcast according to the number of the antennas;
and the broadcasting module is used for controlling at least two directional antennas to broadcast the signals to be broadcasted to different transmitting directions through a change-over switch of the signal transmitting equipment based on the target broadcasting parameters.
In one embodiment, the target broadcast parameter determining module includes:
the initial broadcast parameter acquisition submodule is used for acquiring initial broadcast parameters of signals to be broadcast transmitted by signal transmitting equipment;
and the target broadcast parameter determining submodule is used for determining a target broadcast parameter for broadcasting the signal to be broadcast according to the initial broadcast parameter and the number of the antennas.
In one embodiment, the broadcasting module includes:
the preset conversion frequency determining submodule is used for determining the preset conversion frequency of a change-over switch of the control signal transmitting equipment according to the number of the antennas;
and the broadcasting submodule is used for controlling the conversion of the conversion switch according to the preset conversion frequency so as to determine a target directional antenna from the at least two directional antennas and broadcasting the signal to be broadcasted according to the target broadcasting parameters through the target directional antenna.
A signal transmitting apparatus, the apparatus comprising:
the control device comprises at least two directional antennas and a change-over switch, wherein the signal transmitting directions of the directional antennas are different;
the control device comprises a memory storing a computer program and a processor implementing the steps of the method according to any of the above embodiments when executing the computer program.
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 of any of the above embodiments.
According to the broadcast signal control method, the broadcast signal control device, the signal transmitting equipment and the storage medium, the number of the antennas of the directional antenna of the signal transmitting equipment is determined by obtaining the signal to be broadcast, the signal transmitting equipment is used for broadcasting the signal to be broadcast, the number of the antennas of the directional antenna is at least two, the signal transmitting direction of each directional antenna is different, then the target broadcast parameter for broadcasting the signal to be broadcast is determined according to the number of the antennas, and the signal to be broadcast is broadcasted to different transmitting directions by controlling at least two directional antennas through the change-over switch of the signal transmitting equipment based on the target broadcast parameter. Therefore, target broadcast parameters can be reasonably set according to the number of the antennas in the signal transmitting equipment, then the directional antennas are controlled by the change-over switches to broadcast signals to be broadcast in different transmitting directions, the signals are not broadcast according to a conventional omnidirectional antenna, and the signal intensity in each signal transmitting direction can be improved on the premise of not increasing the density of the signal transmitting equipment.
Drawings
Fig. 1 is a diagram illustrating an application scenario of a broadcast signal control method according to an embodiment;
FIG. 2 is a schematic diagram of a directional antenna in one embodiment;
FIG. 3 is a schematic diagram of a signal transmitting device in one embodiment;
FIG. 4 is a flow chart illustrating a method for controlling broadcast signals according to one embodiment;
FIG. 5 is a block diagram showing the structure of a broadcast signal control apparatus according to an embodiment;
FIG. 6 is a diagram illustrating an internal structure 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 broadcast signal control method provided by the application can be applied to the application environment shown in fig. 1. The control device 102 obtains a signal to be broadcasted, and then determines the number of antennas of the directional antenna 104 of the signal transmitting apparatus, where the signal transmitting apparatus is used to broadcast the signal to be broadcasted, the number of antennas of the directional antenna 104 is at least two, and the signal transmitting directions of the directional antennas 104 are different. Further, the control device 102 determines a target broadcast parameter for broadcasting the signal to be broadcasted according to the number of the antennas, and then controls the at least two directional antennas 104 to broadcast the signal to be broadcasted to different transmission directions through the switch 106 of the signal transmission device based on the target broadcast parameter. The control device 102 may be, but is not limited to, various base stations having a process control function, and the like. The control device 102, the at least two directional antennas 104 and the switch constitute a signal transmitting apparatus.
In the present application, a broadcast signal may refer to a broadcast signal for a plurality of different purposes, for example, a positioning signal for positioning purpose, or a data transmission/reception signal, and the present application is not limited thereto.
In the present application, the broadcast signal may include a bluetooth broadcast signal, a small radio broadcast signal, and the like, according to the type of the signal. The following describes the present embodiment by taking a bluetooth broadcast signal as an example.
In a conventional manner, a bluetooth device continuously receives broadcast information of different signal transmitting devices, for example, an iBeacon base station, after receiving a signal broadcast by the signal transmitting device, extracts a Universal Unique Identifier (UUID) therein, and analyzes the UUID to obtain a transmission Power value TX Power of the signal transmitting device, and subtracts the strength of the signal monitored during reception from the transmission Power value to obtain a Power attenuation value Psend, and the bluetooth device continuously sends the received UUID value and Psend value to a background server.
Further, the background server stores the UUIDs broadcasted by all the signal emitting devices and the location information of the signal emitting devices corresponding to the UUIDs. After receiving the information of the UUIDs sent by the bluetooth device, the background server queries the position information of the corresponding signal transmitting device and the received power attenuation value Psend through the UUIDs, so that the approximate distance between the bluetooth device and different signal transmitting devices can be estimated, for example, more accurate position information of the bluetooth device can be calculated through a triangulation algorithm.
In addition, the background server can further correct the position information of the Bluetooth equipment at the time of reporting according to the position information calculated at the time of reporting on the Bluetooth equipment before and by calculating the running track.
The server calculates the position information of the Bluetooth device based on the fact that the attenuation values of signals of different base stations received by the Bluetooth device are different, the closer the distance between the Bluetooth receiving end and the transmitting end is, the smaller the signal attenuation value is, and otherwise, the larger the signal attenuation value is.
In this embodiment, the bluetooth signal is a 2.4GHz wireless signal, bluetooth positioning is usually in a room with a complex environment, because the field strength at the receiving point of the signal after multipath propagation comes from different propagation paths, the delay time of each path is different, which causes phase shift, and the superposition of the directional component waves generates standing wave field strength, so as to form fast fading or enhancement of the signal, that is, the relationship between the bluetooth signal attenuation value and the distance conforms to rayleigh fading. According to the characteristic of Rayleigh fading, when a signal attenuation value is between 0db and-45 db, the relationship between the signal attenuation value and the distance is obvious, the distance value can be accurately calculated according to the signal attenuation value, when the attenuation value of a transmitting end and a receiving end is about-45 db, the transmitting end and the receiving end are 3 meters away, when the attenuation value of the transmitting end and the receiving end is larger than-45 db, the change of the attenuation of the signal is very slow along with the change of the distance, the distance is increased by 4 meters after the distance is larger than 3 meters, the corresponding power change is less than 5db, the farther the distance is, the smaller the power attenuation value is, and the error of calculating the distance according to the power attenuation value is larger and larger. And the accuracy of measuring the signal strength by a common chip-level receiver is about plus or minus 3db, which means that when the attenuation value is greater than-45 db, a large uncorrectable random positioning accuracy error exists in the chip. Thus, the available range for bluetooth location is typically around 4-8 meters.
Therefore, the conventional bluetooth signal transmitting device is only suitable for short-distance positioning, and the positioning accuracy is reduced along with the longer distance. In the conventional manner, in order to achieve positioning with higher accuracy, only the deployment density of bluetooth base stations can be increased.
Moreover, the service life of the bluetooth base station must be longer than 3 years, and for the convenience of construction and installation, the battery is basically used for power supply, and the positioning requirement requires that the base station must broadcast base station information at intervals of 0.2-3S, so the lower the single transmission power of the bluetooth base station is, the better the battery cannot maintain the necessary service life. However, too little transmission power of the bluetooth base station will result in too weak received bluetooth signal power, which will further result in increased positioning error, so the transmission power of the bluetooth base station is usually limited to 0-4 db. The peak value of the single emission current is 5mA, and the single emission time is 20 mS.
In the application, a signal transmitting device is provided, and a control strategy of reducing transmitting power and increasing transmitting frequency time-sharing broadcasting is adopted through a directional antenna, so that the coverage area of a single signal transmitting device is improved. The following detailed description will be made with reference to the drawings.
In one embodiment, with continued reference to fig. 1, a signal transmitting apparatus comprises: a control device 102, at least two directional antennas 104 and a switch 106, wherein the signal transmitting direction of each directional antenna 104 is different.
In this embodiment, the control device 102 is configured to execute a control strategy of reducing the transmission power and increasing the transmission frequency time-sharing broadcast, so as to control the at least two directional antennas 104 to broadcast the signal to be broadcast to different transmission directions through the switch 106.
In one embodiment, referring to part (a) of fig. 2, the signal transmitting apparatus includes 2 directional antennas, and the two directional antennas are disposed at 180 degrees.
In one embodiment, referring to part (b) in fig. 2, the signal transmitting device includes 3 directional antennas, and the 3 directional antennas are placed at 120 degrees, i.e. the included angle between any two directional antennas is 120 degrees.
It will be understood by those skilled in the art that the present invention is only exemplary, and in other embodiments, the number of directional antennas may be more than 3, which is not limited in the present application.
In this embodiment, referring to fig. 3, continuing to take bluetooth as an example, a conventional bluetooth signal transmitting device only includes one omnidirectional antenna, and in terms of a hardware structure, the present solution may be modified from an existing conventional bluetooth signal transmitting device to obtain a signal transmitting device required by the present solution.
Specifically, a 1: 2 or 1: 3 switch may be added at a position where a radio frequency interface of the ordinary bluetooth signal transmitting apparatus is connected to an antenna, for example, a radio frequency switch, an original non-directional antenna is changed into 2 or 3 directional antennas, the directional antennas point to different directions structurally, and broadcast control is performed according to a control strategy.
In one embodiment, as shown in fig. 4, a broadcast signal control method is provided, which is described by taking the method as an example applied to the control device in fig. 1, and includes the following steps:
step S402, acquiring a signal to be broadcasted.
The signal to be broadcasted may be a bluetooth broadcast signal as described above, or may be other types of signals, which is not limited in this application.
In this application, the control device may broadcast the signal to be broadcast in its own storage device via an antenna.
Step S404, determining the number of the directional antennas of the signal transmitting equipment, wherein the signal transmitting equipment is used for broadcasting the signal to be broadcasted, the number of the directional antennas is at least two, and the signal transmitting directions of the directional antennas are different.
Specifically, the control device may correspondingly acquire the number of antennas of the signal transmitting device that transmits the signal to be broadcasted when acquiring the signal to be broadcasted. As mentioned above, the number of directional antennas may be 2 or 3, which is not limited in this application.
In this embodiment, the structure of the directional antenna can be described with reference to the foregoing signal transmitting apparatus, and is not described herein again.
Step S406, determining target broadcast parameters for broadcasting the signal to be broadcast according to the number of the antennas.
The target broadcast parameters refer to broadcast frequency, transmission power and the like for broadcasting signals to be broadcast.
Specifically, after determining the number of antennas of the signal transmitting apparatus, the control apparatus may determine, according to the number of antennas, a target broadcast parameter for broadcasting a signal to be broadcast, that is, determine a broadcast frequency and a transmission power for broadcasting.
Step S408, based on the target broadcast parameters, controlling at least two directional antennas to broadcast the signals to be broadcast to different transmitting directions through the change-over switch of the signal transmitting equipment.
Specifically, after determining the target broadcast parameters, the control device may control the switch to broadcast the signals to be broadcast to different transmission directions in sequence according to the broadcast frequency and the transmission power.
In this embodiment, the control device may be a low power consumption single chip microcomputer with a bluetooth function, the control device has a plurality of configurable General-purpose input/output (GPIO), and the control device may switch the switch to any one of the directional antennas by controlling the GPIO, so as to broadcast the signal to be broadcast through the directional antenna.
In the broadcast signal control method, the number of the antennas of the directional antenna of the signal transmitting equipment is determined by obtaining the signal to be broadcast, the signal transmitting equipment is used for broadcasting the signal to be broadcast, the number of the antennas of the directional antenna is at least two, the signal transmitting direction of each directional antenna is different, then the target broadcast parameter for broadcasting the signal to be broadcast is determined according to the number of the antennas, and the signal to be broadcast is broadcasted to different transmitting directions by controlling at least two directional antennas through the change-over switch of the signal transmitting equipment based on the target broadcast parameter. Therefore, target broadcast parameters can be reasonably set according to the number of the antennas in the signal transmitting equipment, then the directional antennas are controlled by the change-over switches to broadcast signals to be broadcast in different transmitting directions, the signals are not broadcast according to a conventional omnidirectional antenna, and the signal intensity in each signal transmitting direction can be improved on the premise of not increasing the density of the signal transmitting equipment.
In one embodiment, determining the target broadcast parameters for broadcasting the signal to be broadcast according to the number of antennas may include: acquiring initial broadcast parameters of a signal to be broadcast transmitted by signal transmitting equipment; and determining target broadcast parameters for broadcasting the signals to be broadcast according to the initial broadcast parameters and the number of the antennas.
The initial broadcast parameters may refer to broadcast parameters of the signal transmitting device before the signal transmitting device is not modified, that is, broadcast frequency and transmission power of the ordinary bluetooth signal transmitting device.
In this embodiment, when 2 directional antennas are used, the broadcasting frequency of the signal transmitting apparatus will be increased by 2 times, and a single directional antenna can achieve a power increase of 3db in the pointed area compared to a non-directional antenna of a general signal transmitting apparatus, such as an omni-directional antenna. Therefore, the power value of the single transmission can be reduced by 3db, and the power consumption of the single transmission is reduced.
Similarly, when 3 directional antennas are used, the broadcasting frequency of the signal transmitting apparatus is increased by 3 times, and a power increase of 6db can be achieved by a single directional antenna in the pointed area compared with the non-directional antenna of the general signal transmitting apparatus. Therefore, the power value of single transmission can be reduced by 5-6db, thereby reducing the power consumption of single transmission.
In the above embodiment, the initial broadcast parameters of the signal to be broadcast transmitted by the signal transmitting device are obtained, and the target broadcast parameters for broadcasting the signal to be broadcast are determined according to the initial broadcast parameters and the number of antennas, so that the target broadcast parameters for broadcasting the signal to be broadcast can be determined according to the initial broadcast parameters of the original signal transmitting device, and the signal strength in the signal transmitting direction can be improved on the premise of not changing the original power consumption and the service life.
In one embodiment, controlling at least two directional antennas to broadcast signals to be broadcast in different transmission directions by a switch of a signal transmitting apparatus according to broadcast parameters may include: determining a preset switching frequency of a change-over switch for controlling the signal transmitting equipment according to the number of the antennas; and controlling the change-over switch to change over according to a preset change-over frequency so as to determine a target directional antenna from the at least two directional antennas, and broadcasting the signal to be broadcasted according to the target broadcasting parameters through the target directional antenna.
In this embodiment, the preset switching frequency may refer to a predefined frequency value, and the preset switching frequencies of the switches acquired by the control device may be different for signal transmitting devices with different numbers of antennas.
In one embodiment, the predetermined switching frequency may also be a signal transmission frequency of the original signal transmission device.
In this embodiment, after determining the preset switching frequency of the switch controlling the signal transmitting device, the server may control the switch to switch according to the preset switching frequency, so as to determine a target directional antenna from the at least two directional antennas, and broadcast the signal to be broadcast according to the target broadcast parameters through the target directional antenna.
For example, if the number of the antennas is 3, the control device may sequentially control the switch to control the 3 directional antennas to sequentially broadcast the signal to be broadcast according to the obtained preset switching frequency.
In the above embodiment, according to the number of antennas, a preset switching frequency of a switch for controlling the signal transmitting apparatus is determined, and then the switch is controlled to switch according to the preset switching frequency, so as to determine a target directional antenna from at least two directional antennas, and broadcast a signal to be broadcast according to a target broadcast parameter through the target directional antenna, for signal transmitting apparatuses with different numbers of antennas, different broadcast strategies may be correspondingly provided.
In one embodiment, determining a target directional antenna from at least two directional antennas, and broadcasting a signal to be broadcast through the target directional antenna according to a target broadcast parameter may include: determining a target directional antenna from at least two directional antennas through a change-over switch, and broadcasting a signal to be broadcasted according to a target broadcasting parameter through the target directional antenna; modifying the signal to be broadcasted according to a preset value to obtain a modified signal to be broadcasted; re-determining a target directional antenna from non-target directional antennas in the at least two directional antennas through a change-over switch, and controlling the re-determined target directional antenna to broadcast the modified signal to be broadcast according to the target broadcast parameters; and continuously modifying the signal to be broadcasted, and continuously re-determining the target directional antenna to broadcast the modified signal to be broadcasted until at least two directional antennas finish the broadcasting of the signal to be broadcasted.
In this embodiment, when the control device reaches its set transmission time interval, that is, according to the preset switching frequency, the control device controls the GPIO to switch the switch to the first directional antenna, and broadcasts the signal to be broadcast according to the target broadcast parameters.
Further, after waiting for the transmission time interval, the control device controls the GPIO to switch the switch to the second directional antenna, and at the same time, modifies the signal to be broadcast, for example, changes the Minor value of the signal to be broadcast to a Minor value +1, and sends the modified signal to be broadcast through the second directional antenna.
In this way, the control device switches to different directional antennas by controlling the change-over switch, and modifies the signal to be broadcast, so that each directional antenna broadcasts in sequence.
In this embodiment, when the switch completes the control of all the directional antennas, that is, after the directional antenna of the signal transmitting apparatus completes one round of broadcasting, the broadcast control of the broadcast signal is performed again from the first directional antenna in sequence, so as to poll.
In one embodiment, with reference to fig. 2(a) continuously, for example, 2 directional antennas are used, when a device to be located is close to the coverage area of a directional antenna, a broadcast signal with a constant Minor value is received first to characterize that the device enters the coverage area of the first directional antenna, when the device to be located moves near the central point, the device to be located simultaneously receives a broadcast signal with a constant Minor value and a broadcast signal with a Minor +1 to characterize that the device has entered the vicinity of the signal transmitting device, and when the device to be located continuously moves away from the central point, the device to be located receives a broadcast signal with the Minor +1 to characterize that the device has moved to the coverage area of the second directional antenna, so that the background can more accurately determine the location information of the device to be located.
In the above embodiment, the signal to be broadcast is modified according to the preset value to obtain the modified signal to be broadcast, and the target directional antenna is determined again to broadcast the modified signal to be broadcast according to the target broadcast parameters, so that different broadcast contents are transmitted when different directional antennas broadcast, the identification of the broadcast signal is improved, and the positioning accuracy is improved.
In one embodiment, determining a target directional antenna from at least two directional antennas through a switch, and broadcasting a signal to be broadcast according to a target broadcast parameter through the target directional antenna may include: generating a control instruction through a change-over switch, and awakening the target directional antenna in a dormant state according to the control instruction; and broadcasting the signal to be broadcasted through the awakened target directional antenna according to the target broadcasting parameters, and switching to a dormant state after broadcasting for a preset time.
In the present embodiment, in order to save power consumption, the directional antenna that does not transmit the broadcast signal is in a sleep state. When the control device controls the change-over switch to the corresponding target directional antenna, the change-over switch can generate a control instruction firstly, then awaken the target directional antenna in the dormant state according to the control instruction, and broadcast the signal to be broadcast according to the target broadcast parameters through the awakened target directional antenna.
In this embodiment, after the switch is switched to the next directional antenna or the target directional antenna broadcasts for a preset time period, the target directional antenna may be switched from the wake-up state back to the sleep state and wait for the next wake-up.
In this embodiment, the preset duration may be consistent with the switching time interval of the directional antenna.
In the above embodiment, the control instruction is generated by the switch, and the target directional antenna in the sleep state is awakened according to the control instruction; the target directional antenna after awakening broadcasts the signal to be broadcasted according to the target broadcasting parameters, and is switched to the dormant state after broadcasting for a preset time, so that the directional antenna can process the dormant state when not broadcasting, the power consumption is reduced, and the service life is prolonged.
It should be understood that, although the steps in the flowchart of fig. 4 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 performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least a portion of the steps in fig. 4 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 performance of the sub-steps or stages is not necessarily sequential, but may be performed in turn or alternately with other steps or at least a portion of the sub-steps or stages of other steps.
In one embodiment, as shown in fig. 5, there is provided a broadcast signal control apparatus including: a signal to be broadcast acquisition module 100, an antenna number determination module 200, a target broadcast parameter determination module 300, and a broadcast module 400, wherein:
a signal to be broadcasted acquiring module 100, configured to acquire a signal to be broadcasted.
An antenna number determining module 200, configured to determine the number of antennas of directional antennas of a signal transmitting apparatus, where the signal transmitting apparatus is configured to broadcast a signal to be broadcast, the number of antennas of the directional antennas is at least two, and signal transmitting directions of the directional antennas are different.
The target broadcast parameter determining module 300 is configured to determine a target broadcast parameter for broadcasting the signal to be broadcast according to the number of antennas.
A broadcasting module 400, configured to control at least two directional antennas to broadcast signals to be broadcasted to different transmitting directions through a switch of a signal transmitting apparatus based on the target broadcasting parameters.
In one embodiment, the target broadcast parameter determination module 300 may include:
and the initial broadcast parameter acquisition submodule is used for acquiring the initial broadcast parameters of the signal to be broadcast transmitted by the signal transmitting equipment.
And the target broadcast parameter determining submodule is used for determining a target broadcast parameter for broadcasting the signal to be broadcast according to the initial broadcast parameter and the number of the antennas.
In one embodiment, the broadcasting module 400 may include:
and the preset switching frequency determining submodule is used for determining the preset switching frequency of a change-over switch of the control signal transmitting equipment according to the number of the antennas.
And the broadcasting submodule is used for controlling the conversion of the conversion switch according to the preset conversion frequency so as to determine a target directional antenna from the at least two directional antennas and broadcasting the signal to be broadcasted according to the target broadcasting parameters through the target directional antenna.
For specific limitations of the broadcast signal control apparatus, reference may be made to the above limitations of the broadcast signal control method, which are not described herein again. The respective modules in the broadcast signal control apparatus may be wholly or partially implemented by 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.
In one embodiment, a computer device is provided, which may be a server, and the internal structure thereof may be as shown in fig. 6. The computer device includes a processor, a memory, a network interface, and a database connected by a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program, and a database. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The database of the computer device is used for storing data such as signals to be broadcast and target broadcast parameters. The network interface of the computer device is used for communicating with an external terminal through a network connection. The computer program is executed by a processor to implement a broadcast signal control method.
Those skilled in the art will appreciate that the architecture shown in fig. 6 is merely a block diagram of some of the structures associated with the disclosed aspects and is not intended to limit the computing devices to which the disclosed aspects apply, as particular computing devices may include more or less components than those shown, or may combine certain components, or have a different arrangement of components.
In one embodiment, there is provided a computer device comprising a memory storing a computer program and a processor implementing the following steps when the processor executes the computer program: acquiring a signal to be broadcasted; determining the number of antennas of directional antennas of signal transmitting equipment, wherein the signal transmitting equipment is used for broadcasting a signal to be broadcasted, the number of the antennas of the directional antennas is at least two, and the signal transmitting directions of the directional antennas are different; determining target broadcast parameters for broadcasting the signals to be broadcast according to the number of the antennas; and controlling at least two directional antennas to broadcast the signals to be broadcast in different transmitting directions through a change-over switch of the signal transmitting equipment based on the target broadcast parameters.
In one embodiment, the determining, by the processor, the target broadcast parameter for broadcasting the signal to be broadcast according to the number of antennas when the processor executes the computer program may include: acquiring initial broadcast parameters of a signal to be broadcast transmitted by signal transmitting equipment; and determining target broadcast parameters for broadcasting the signals to be broadcast according to the initial broadcast parameters and the number of the antennas.
In one embodiment, the processor executing the computer program to implement the control of at least two directional antennas to broadcast the signal to be broadcast to different transmission directions according to the broadcast parameters by the switch of the signal transmission device may include: determining a preset switching frequency of a change-over switch of the control signal transmitting equipment according to the number of the antennas; and controlling the change-over switch to change over according to a preset change-over frequency so as to determine a target directional antenna from the at least two directional antennas, and broadcasting the signal to be broadcasted according to the target broadcasting parameters through the target directional antenna.
In one embodiment, the processor, when executing the computer program, determines a target directional antenna from at least two directional antennas and broadcasts a signal to be broadcasted according to a target broadcasting parameter through the target directional antenna, and may include: determining a target directional antenna from at least two directional antennas through a change-over switch, and broadcasting a signal to be broadcasted according to a target broadcasting parameter through the target directional antenna; modifying the signal to be broadcasted according to a preset value to obtain a modified signal to be broadcasted; re-determining a target directional antenna from non-target directional antennas in the at least two directional antennas through a change-over switch, and controlling the re-determined target directional antenna to broadcast the modified signal to be broadcast according to the target broadcast parameters; and continuously modifying the signal to be broadcasted, and continuously re-determining the target directional antenna to broadcast the modified signal to be broadcasted until at least two directional antennas finish the broadcasting of the signal to be broadcasted.
In one embodiment, the processor, when executing the computer program, determines a target directional antenna from at least two directional antennas through the switch, and broadcasts a signal to be broadcasted according to a target broadcasting parameter through the target directional antenna, may include: generating a control instruction through a change-over switch, and awakening the target directional antenna in a dormant state according to the control instruction; and broadcasting the signal to be broadcasted through the awakened target directional antenna according to the target broadcasting parameters, and switching to a dormant state after broadcasting for a preset time.
In one embodiment, a computer-readable storage medium is provided, having a computer program stored thereon, which when executed by a processor, performs the steps of: acquiring a signal to be broadcasted; determining the number of antennas of directional antennas of signal transmitting equipment, wherein the signal transmitting equipment is used for broadcasting signals to be broadcasted, the number of the antennas of the directional antennas is at least two, and the signal transmitting directions of the directional antennas are different; determining target broadcast parameters for broadcasting the signals to be broadcast according to the number of the antennas; and controlling at least two directional antennas to broadcast the signals to be broadcast in different transmitting directions through a change-over switch of the signal transmitting equipment based on the target broadcast parameters.
In one embodiment, the computer program when executed by the processor for determining the target broadcast parameters for broadcasting the signal to be broadcast according to the number of antennas may include: acquiring initial broadcast parameters of a signal to be broadcast transmitted by signal transmitting equipment; and determining target broadcast parameters for broadcasting the signals to be broadcast according to the initial broadcast parameters and the number of the antennas.
In one embodiment, the computer program when executed by the processor for controlling at least two directional antennas to broadcast signals to be broadcast in different transmission directions according to the broadcast parameters may include: determining a preset switching frequency of a change-over switch of the control signal transmitting equipment according to the number of the antennas; and controlling the change-over switch to change over according to a preset change-over frequency so as to determine a target directional antenna from the at least two directional antennas, and broadcasting the signal to be broadcasted according to the target broadcasting parameters through the target directional antenna.
In one embodiment, the computer program when executed by the processor for determining a target directional antenna from the at least two directional antennas and broadcasting the signal to be broadcast according to the target broadcast parameters through the target directional antenna may include: determining a target directional antenna from at least two directional antennas through a change-over switch, and broadcasting a signal to be broadcasted according to a target broadcasting parameter through the target directional antenna; modifying the signal to be broadcasted according to a preset value to obtain a modified signal to be broadcasted; re-determining a target directional antenna from non-target directional antennas in the at least two directional antennas through a change-over switch, and controlling the re-determined target directional antenna to broadcast the modified signal to be broadcast according to the target broadcast parameters; and continuously modifying the signal to be broadcasted, and continuously re-determining the target directional antenna to broadcast the modified signal to be broadcasted until at least two directional antennas finish the broadcasting of the signal to be broadcasted.
In one embodiment, the computer program when executed by the processor for implementing determining a target directional antenna from at least two directional antennas through the switch and broadcasting a signal to be broadcast according to a target broadcast parameter through the target directional antenna may include: generating a control instruction through a change-over switch, and awakening the target directional antenna in a dormant state according to the control instruction; and broadcasting the signal to be broadcasted through the awakened target directional antenna according to the target broadcasting parameters, and switching to a dormant state after broadcasting for a preset time.
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 can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can 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 may include non-volatile and/or volatile memory, among others. 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 DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification 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 application, and the description thereof is more specific and detailed, but not construed 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 concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A method for controlling a broadcast signal, the method comprising:
acquiring a signal to be broadcasted;
determining the number of antennas of directional antennas of signal transmitting equipment, wherein the signal transmitting equipment is used for broadcasting the signal to be broadcasted, the number of the antennas of the directional antennas is at least two, and the signal transmitting directions of the directional antennas are different;
determining target broadcast parameters for broadcasting the signals to be broadcast according to the number of the antennas, wherein the target broadcast parameters comprise preset conversion frequency and transmitting power;
and controlling the at least two directional antennas to broadcast the signals to be broadcast to different transmission directions through a change-over switch of the signal transmission equipment based on the target broadcast parameters.
2. The method of claim 1, wherein the determining the target broadcast parameters for broadcasting the signal to be broadcast according to the number of antennas comprises:
acquiring initial broadcast parameters of the signal to be broadcast transmitted by the signal transmitting equipment;
and determining a target broadcast parameter for broadcasting the signal to be broadcast according to the initial broadcast parameter and the number of the antennas.
3. The method of claim 1, wherein controlling the at least two directional antennas to broadcast the signal to be broadcast in different transmission directions according to the broadcast parameters by a switch of the signal transmitting apparatus comprises:
determining a preset switching frequency of a change-over switch of the control signal transmitting equipment according to the number of the antennas;
and controlling the change-over switch to change over according to the preset change-over frequency so as to determine a target directional antenna from the at least two directional antennas, and broadcasting the signal to be broadcasted according to the target broadcasting parameters through the target directional antenna.
4. The method of claim 3, wherein the determining a target directional antenna from the at least two directional antennas and broadcasting the signal to be broadcast according to the target broadcast parameters through the target directional antenna comprises:
determining a target directional antenna from the at least two directional antennas through the change-over switch, and broadcasting the signal to be broadcasted according to the target broadcasting parameters through the target directional antenna;
modifying the Minor value of the signal to be broadcasted according to a preset value to obtain the modified signal to be broadcasted, wherein the Minor value is an identifier for representing different directional antennas;
re-determining a target directional antenna from non-target directional antennas of the at least two directional antennas through the change-over switch, and controlling the re-determined target directional antenna to broadcast the modified signal to be broadcast according to the target broadcast parameters;
and continuously modifying the Minor value of the signal to be broadcasted, and continuously re-determining the target directional antenna to broadcast the modified signal to be broadcasted until the at least two directional antennas finish the broadcasting of the signal to be broadcasted.
5. The method of claim 4, wherein the determining a target directional antenna from the at least two directional antennas through the switch and broadcasting the signal to be broadcast according to the target broadcast parameters through the target directional antenna comprises:
generating a control instruction through the change-over switch, and awakening the target directional antenna in a dormant state according to the control instruction;
and broadcasting the signal to be broadcasted through the awakened target directional antenna according to the target broadcasting parameters, and switching to a dormant state after broadcasting for a preset time.
6. A broadcast signal control apparatus, comprising:
the broadcast signal acquisition module is used for acquiring a broadcast signal;
the device comprises an antenna number determining module, a signal transmitting device and a signal receiving module, wherein the antenna number determining module is used for determining the antenna number of directional antennas of the signal transmitting device, the signal transmitting device is used for broadcasting the signal to be broadcasted, the antenna number of the directional antennas is at least two, and the signal transmitting directions of the directional antennas are different;
a target broadcast parameter determining module, configured to determine a target broadcast parameter for broadcasting the signal to be broadcast according to the number of antennas, where the target broadcast parameter includes a preset switching frequency and a transmission power;
and the broadcasting module is used for controlling the at least two directional antennas to broadcast the signals to be broadcasted to different transmitting directions through a change-over switch of the signal transmitting equipment based on the target broadcasting parameters.
7. The apparatus of claim 6, wherein the target broadcast parameter determining module comprises:
an initial broadcast parameter obtaining submodule, configured to obtain an initial broadcast parameter of the signal to be broadcast, which is transmitted by the signal transmitting apparatus;
and the target broadcast parameter determining submodule is used for determining a target broadcast parameter for broadcasting the signal to be broadcast according to the initial broadcast parameter and the number of the antennas.
8. The apparatus of claim 6, wherein the broadcasting module comprises:
the preset conversion frequency determining submodule is used for determining the preset conversion frequency of a conversion switch for controlling the signal transmitting equipment according to the number of the antennas;
and the broadcasting sub-module is used for controlling the change-over switch to change over according to the preset change-over frequency so as to determine a target directional antenna from the at least two directional antennas, and broadcasting the signal to be broadcasted according to the target broadcasting parameters through the target directional antenna.
9. A signal transmitting apparatus, characterized in that the apparatus comprises:
the control device comprises at least two directional antennas and a change-over switch, wherein the signal transmitting directions of the directional antennas are different;
the control device is used for executing the method of any one of claims 1 to 5;
the change-over switch is used for controlling the at least two directional antennas to broadcast the signals to be broadcast to different transmitting directions according to the target broadcast parameters of the control device.
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 of any one of claims 1 to 5.
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| CN105101398A (en) * | 2014-05-06 | 2015-11-25 | 南京萝卜地电子科技有限公司 | Indoor positioning method and device using directional antenna |
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| CN108092678A (en) * | 2018-02-06 | 2018-05-29 | 樊明延 | A kind of variable beam Bluetooth Low Energy beacon apparatus and its implementation |
| CN211152216U (en) * | 2020-02-27 | 2020-07-31 | 上海钧正网络科技有限公司 | Positioning device and communication system |
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