CN112423305A - Method and device for reducing mutual interference of signals, electronic equipment and storage medium - Google Patents
Method and device for reducing mutual interference of signals, electronic equipment and storage medium Download PDFInfo
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Abstract
The invention provides a method, a device, electronic equipment and a storage medium for reducing mutual interference of signals, wherein the method for reducing mutual interference of signals comprises the following steps: acquiring a synchronous signal output by a GPS module; judging whether the GPS communication is finished or not according to the synchronous signal output by the GPS module; if the GPS communication is in the ending state, the GPS module is closed, and the cellular communication module is opened; and when the cellular communication is finished, closing the cellular communication module and opening the GPS module. The invention can ensure that the cellular communication module is in the closed state when the GPS module is in the working state, and the GPS module is in the closed state when the cellular communication module is in the working state, thereby realizing the time-sharing work of the cellular communication and the GPS communication, effectively reducing the mutual interference between the cellular communication and the GPS communication, and effectively improving the positioning precision of the GPS module.
Description
Technical Field
The present invention relates to the field of wireless communication technologies, and in particular, to a method and an apparatus for reducing mutual interference between signals, an electronic device, and a storage medium.
Background
The frequency bands involved in the operation of cellular communication (2G/3G/4G) are more, and in order to ensure the effectiveness of communication, according to the 3GPP protocol, the transmission power of the cellular communication is adjusted according to the strength of signals of nearby base stations, and when the signals of nearby base stations are weaker, the device strengthens the transmission power of the cellular communication.
The working frequency band of the GPS is 1575.42 ± 1.023MHz, the signal strength transmitted by the satellite is weak, and is very easily interfered, and when a wireless device with high power works nearby, the wireless device is interfered to influence the normal work of the wireless device, as shown in fig. 1, because cellular communication and GPS communication in the prior art do not work in a time-sharing manner, mutual interference of signals is generated at a certain probability between the cellular communication and the GPS communication.
When the vehicle runs to an area with weak base station signals (under an overhead bridge and near a high building), the power of cellular communication is increased according to the self-adaptive algorithm, so that a GPS antenna is interfered, the positioning precision is reduced, and the position is inaccurate.
Disclosure of Invention
The invention aims to provide a method, a device, electronic equipment and a storage medium for reducing signal mutual interference, which can realize time-sharing work of cellular communication and GPS communication and reduce mutual interference between the cellular communication and the GPS communication.
To achieve the above object, the present invention provides a method for reducing mutual interference of signals, comprising: acquiring a synchronous signal output by a GPS module;
judging whether the GPS communication is finished or not according to the synchronous signal output by the GPS module;
if the GPS communication is in the ending state, the GPS module is closed, and the cellular communication module is opened; and
and when the cellular communication is finished, closing the cellular communication module and opening the GPS module.
Optionally, the synchronization signal output by the GPS module is collected by the MPU.
Optionally, the cellular communication module and the MPU are both integrated on a baseband chip.
Optionally, the GPS module includes a radio frequency switch circuit, and the MPU controls on/off of the radio frequency switch circuit.
Optionally, the isolation of the GPS signal from the cellular signal is greater than 25 dB.
Optionally, the distance between the cellular antenna and the GPS antenna is greater than or equal to 35 cm.
In order to achieve the above object, the present invention further provides an apparatus for reducing mutual interference of signals, including:
the acquisition module is used for acquiring the synchronous signal output by the GPS module;
the judging module is used for judging whether the GPS communication is finished or not according to the synchronous signal output by the GPS module;
the first control module is used for closing the GPS module and opening the cellular communication module when the GPS communication is in the ending state; and
and the second control module is used for closing the cellular communication module and opening the GPS module after the cellular communication is finished.
Optionally, the synchronization signal output by the GPS module is collected by the MPU.
Optionally, the cellular communication module and the MPU are both integrated on a baseband chip.
Optionally, the GPS module includes a radio frequency switch circuit, and the MPU controls on/off of the radio frequency switch circuit.
Optionally, the isolation of the GPS signal from the cellular signal is greater than 25 dB.
Optionally, the distance between the cellular antenna and the GPS antenna is greater than or equal to 35 cm.
In order to achieve the above object, the present invention further provides an electronic device, which includes a processor, a communication interface, a memory, and a communication bus, wherein the processor, the communication interface, and the memory complete communication with each other through the communication bus;
the memory is used for storing a computer program;
the processor is configured to implement any one of the above methods for reducing mutual interference of signals when executing the program stored in the memory.
To achieve the above object, the present invention further provides a computer-readable storage medium, in which a computer program is stored, and the computer program, when executed by a processor, implements any of the above methods for reducing mutual signal interference.
Compared with the prior art, the method, the device, the electronic equipment and the storage medium for reducing the mutual interference of the signals have the following advantages: the invention judges whether the GPS communication is finished or not according to the synchronous signal output by the GPS module by acquiring the synchronous signal output by the GPS module, if the GPS communication is in a finished state, the GPS module is closed, and the cellular communication module is opened so as to enable the cellular communication module to be in a working state, and after the cellular communication is finished, the cellular communication module is closed and the GPS module is opened. Therefore, the cellular communication module is in the closed state when the GPS module is in the working state, and the GPS module is in the closed state when the cellular communication module is in the working state, so that the cellular communication and the GPS communication can work in a time-sharing mode, the mutual interference between the cellular communication and the GPS communication is effectively reduced, and the positioning precision of the GPS module can be effectively improved.
Drawings
FIG. 1 is a communication timing diagram of cellular communication and GPS communication in the prior art;
FIG. 2 is a flowchart of a method for reducing signal interference according to an embodiment of the present invention;
FIG. 3 is a communication timing diagram of cellular communication and GPS communication in accordance with an embodiment of the present invention;
FIG. 4 is a schematic circuit diagram of a GPS module according to an embodiment of the present invention;
FIG. 5 is a block diagram of an apparatus for reducing mutual signal interference according to an embodiment of the present invention;
fig. 6 is a block diagram of an electronic device according to an embodiment of the present invention.
Wherein the reference numbers are as follows:
an acquisition module-201; a judgment module-202; a first control module-203; a second control module-204; a processor-301; a communication interface-302; a memory-303; communication bus-304.
Detailed Description
A method, an apparatus, an electronic device and a storage medium for reducing mutual signal interference according to the present invention are described in further detail with reference to fig. 2 to 6 and the following detailed description. Advantages and features of the present invention will become apparent from the following description and from the claims. It is to be noted that the drawings are in a very simplified form and are all used in a non-precise scale for the purpose of facilitating and distinctly aiding in the description of the embodiments of the present invention. To make the objects, features and advantages of the present invention comprehensible, reference is made to the accompanying drawings. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the implementation conditions of the present invention, so that the present invention has no technical significance, and any structural modification, ratio relationship change or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. Furthermore, it will be understood that each block of the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart illustrations, can be implemented by special purpose hardware-based systems that perform the specified functions or acts, or combinations of special purpose hardware and computer program instructions. It is well known to those skilled in the art that implementation by hardware, by software, and by a combination of software and hardware are equivalent.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, 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 identical elements in a process, method, article, or apparatus that comprises the element.
As introduced in the background art, cellular communication (2G/3G/4G) involves more frequency bands, and in order to ensure the effectiveness of communication, according to the 3GPP protocol, the transmission power is adjusted according to the signal strength of a nearby base station, and when the signal strength of the nearby base station is weak, the device strengthens its own transmission power. The working frequency band of the GPS is 1575.42 +/-1.023 MHz, the signal strength transmitted by a satellite is weak, the interference is very easy to be caused, and when a wireless device with high power works nearby, the interference can be caused to influence the normal work of the wireless device. Especially, when the vehicle travels to an area with weak base station signals (under an overhead bridge and near a high building), the power of cellular communication is increased according to the adaptive algorithm, so that the GPS antenna is interfered, the positioning precision is reduced, and the position is inaccurate.
Fig. 1 schematically shows a communication timing chart of cellular communication and GPS communication in the prior art, in which a darker line indicates the timing chart of cellular communication and a lighter line indicates the timing chart of GPS communication, and as shown in fig. 1, in one communication cycle, when a cellular signal is in a high level region, it indicates that cellular communication is in an execution state, and when the cellular signal is in a low level region, it indicates that cellular communication is in an end state. Similarly, when the GPS signal is in the high level region, it indicates that the GPS communication is in the execution state, and when the GPS signal is in the low level region, it indicates that the GPS communication is in the end state. As can be seen from fig. 1, since cellular communication and GPS communication in the prior art do not operate in a time-sharing manner, there is a certain probability that mutual interference of signals occurs between the cellular communication and the cellular communication, where, as shown in fig. 1, a region where a GPS signal and a cellular signal coincide in a high-level region is a mutual interference region.
The core idea of the invention is to provide a method, a device, an electronic device and a storage medium for reducing mutual interference of signals, which can realize time-sharing work of cellular communication and GPS communication and reduce mutual interference between the cellular communication and the GPS communication.
The method for reducing mutual signal interference according to the embodiments of the present invention may be applied to an apparatus for reducing mutual signal interference according to the embodiments of the present invention, and the apparatus for reducing mutual signal interference may be configured on an electronic device, where the electronic device may be an in-vehicle communication device. The method, the apparatus, the electronic device and the storage medium for reducing mutual interference of signals provided by the present invention may be used in a vehicle-mounted communication device, and may also be used in other mobile communication terminals, and the present invention is not limited to this.
To achieve the foregoing idea, the present invention provides a method for reducing mutual signal interference, please refer to fig. 2, which schematically shows a flowchart of a method for reducing mutual signal interference according to an embodiment of the present invention, and as shown in fig. 2, the method for reducing mutual signal interference includes the following steps:
step S101: and acquiring the synchronous signal output by the GPS module.
In this step, the GPS module is in an on state and the cellular communication module is in an off state.
Preferably, the GPS module is integrated on an M8 chip of UBLOX, thereby realizing the GPS signal analysis through an M8 chip of UBLOX.
Preferably, the synchronization signal output by the GPS module is collected by an MPU. Therefore, the synchronization signal output by the GPS module is acquired through an MPU (micro processing unit), so that the synchronization signal output by the GPS module can be acquired, and whether the GPS communication is finished or not can be judged according to the synchronization signal output by the GPS module.
Step S102: and judging whether the GPS communication is finished or not according to the synchronous signal output by the GPS module.
If the determination result is that the GPS communication is in the end state, that is, after the GPS module completes one communication cycle, step S103 is started to be executed, and if the determination result is that the GPS communication is not in the end state, step S101 is returned to be executed.
Step S103: the GPS module is turned off and the cellular communication module is turned on.
Therefore, after GPS communication is finished, the GPS module is closed, and the cellular communication module is opened, so that interference of GPS signals to cellular signals can be avoided.
Step S104: and when the cellular communication is finished, closing the cellular communication module and opening the GPS module.
Specifically, whether the cellular communication is ended or not may be determined according to built-in software, and then after the cellular communication is ended, that is, after the cellular communication module completes one communication cycle, the cellular communication module is turned off, and the GPS module is turned on, so that the GPS module enters the next communication cycle, and continues to execute steps S101 to S104.
Therefore, according to the method for reducing signal mutual interference provided by the invention, whether GPS communication is finished or not is judged according to the synchronous signal output by the GPS module by acquiring the synchronous signal output by the GPS module, if the GPS communication is in a finished state, the GPS module is closed, and the cellular communication module is opened, so that the cellular communication module is in a working state, and after the cellular communication is finished, the cellular communication module is closed and the GPS module is opened. Therefore, by adopting the method for reducing the mutual interference of the signals, the cellular communication module is in the closed state when the GPS module is in the working state, and the GPS module is in the closed state when the cellular communication module is in the working state, so that the time-sharing work of the cellular communication and the GPS communication can be realized, the mutual interference between the cellular communication and the GPS communication can be effectively reduced, and the positioning precision of the GPS module can be effectively improved.
Referring to fig. 3, fig. 3 schematically shows a communication timing diagram of cellular communication and GPS communication according to an embodiment of the present invention, wherein a darker line represents the timing diagram of cellular communication, and a lighter line represents the timing diagram of GPS communication, as shown in fig. 3, during a communication cycle, when a cellular signal is in a high level region, it represents that cellular communication is in an execution state, and when the cellular signal is in a low level region, it represents that cellular communication is in an end state. Similarly, when the GPS signal is in the high level area, the GPS communication is in the execution state, and when the GPS signal is in the low level area, the GPS communication is in the ending state.
Preferably, the cellular communication module and the MPU are both integrated on a baseband chip. Therefore, the cellular communication module and the MPU are integrated on the baseband chip, so that the cellular signal can be analyzed through the baseband chip, and meanwhile, the synchronous signal output by the GPS module can be collected through the baseband chip.
Preferably, the GPS module includes a radio frequency switch circuit, and the MPU controls on/off of the radio frequency switch circuit. Therefore, the radio frequency switch circuit is added on the GPS antenna loop, and the MPU can control the on-off of the radio frequency switch circuit, so that the on-state of the GPS antenna can be controlled by the MPU, and the time-sharing work of cellular communication and GPS communication is realized. Referring to fig. 4, a schematic circuit diagram of a GPS module according to an embodiment of the present invention is schematically shown, and as shown in fig. 4, a circuit shown by a dotted line portion in the diagram is a radio frequency switch circuit, and the on-state of a GPS antenna can be controlled by controlling the on-off of the radio frequency switch circuit, so as to implement time-sharing operation of cellular communication and GPS communication.
Preferably, the GPS signal is more than 25dB isolated from the cellular signal. Therefore, the isolation between the GPS signal and the cellular signal is set to be more than 25dB, so that the mutual interference between the GPS signal and the cellular signal can be further reduced, and the positioning precision of the GPS module can be further improved.
Preferably, the distance between the cellular antenna and the GPS antenna is greater than or equal to 35 cm. The distance between the cellular antenna and the GPS antenna in the prior art is about 15cm, and the invention can further reduce the mutual interference between cellular communication and GPS communication by increasing the physical distance between the cellular antenna and the GPS antenna, thereby further improving the positioning accuracy of the GPS module.
In summary, the method for reducing mutual interference of signals according to the present invention determines whether GPS communication is finished according to a synchronization signal output by a GPS module by acquiring the synchronization signal output by the GPS module, and if the GPS communication is in a finished state, the GPS module is turned off and a cellular communication module is turned on to enable the cellular communication module to be in a working state. Therefore, by adopting the method for reducing the mutual interference of the signals, the cellular communication module is in the closed state when the GPS module is in the working state, and the GPS module is in the closed state when the cellular communication module is in the working state, so that the time-sharing work of the cellular communication and the GPS communication can be realized, the mutual interference between the cellular communication and the GPS communication can be effectively reduced, and the positioning precision of the GPS module can be effectively improved.
Corresponding to the method for reducing mutual interference between signals, the present invention further provides an apparatus for reducing mutual interference between signals, referring to fig. 5, which schematically shows a block diagram of an apparatus for reducing mutual interference between signals according to an embodiment of the present invention, and as shown in fig. 5, the apparatus for reducing mutual interference between signals includes:
an obtaining module 201, configured to obtain a synchronization signal output by a GPS module;
a judging module 202, configured to judge whether GPS communication is ended according to the synchronization signal output by the GPS module;
a first control module 203, configured to turn off the GPS module and turn on the cellular communication module when the GPS communication is in an end state; and
a second control module 204, configured to turn off the cellular communication module and turn on the GPS module after the cellular communication is ended.
Therefore, according to the device for reducing signal mutual interference provided by the invention, the acquisition module 201 is used for acquiring the synchronous signal output by the GPS module, the judgment module 202 is used for judging whether the GPS communication is finished or not according to the synchronous signal output by the GPS module, if the GPS communication is in the finished state, the first control module 203 is used for closing the GPS module and starting the cellular communication module so as to enable the cellular communication module to be in the working state, and the second control module 204 is used for closing the cellular communication module and starting the GPS module after the cellular communication is finished. Therefore, by adopting the device for reducing the mutual interference of the signals, provided by the invention, the cellular communication module is in the closed state when the GPS module is in the working state, and the GPS module is in the closed state when the cellular communication module is in the working state, so that the time-sharing work of the cellular communication and the GPS communication can be realized, the mutual interference between the cellular communication and the GPS communication can be effectively reduced, and the positioning precision of the GPS module can be effectively improved.
Preferably, the synchronization signal output by the GPS module is collected by an MPU. Therefore, the MPU (micro processing unit) collects the synchronization signal output by the GPS module, so that the acquisition module 201 can acquire the synchronization signal output by the GPS module, and the determination module 202 can determine whether the GPS communication is finished according to the synchronization signal output by the GPS module.
Preferably, the cellular communication module and the MPU are both integrated on a baseband chip. Therefore, the cellular communication module and the MPU are integrated on the baseband chip, so that the cellular signal can be analyzed through the baseband chip, and meanwhile, the synchronous signal output by the GPS module can be collected through the baseband chip.
Preferably, the GPS module includes a radio frequency switch circuit, and the MPU controls on/off of the radio frequency switch circuit. Therefore, the radio frequency switch circuit is added on the GPS antenna loop, and the MPU can control the on-off of the radio frequency switch circuit, so that the on-state of the GPS antenna can be controlled by the MPU, and the time-sharing work of cellular communication and GPS communication is realized.
Preferably, the GPS signal is more than 25dB isolated from the cellular signal. Thus, by setting the degree of isolation of the GPS signal from the cellular signal to be greater than 25dB, the mutual interference between the GPS signal and the cellular signal can be further reduced.
Preferably, the distance between the cellular antenna and the GPS antenna is greater than or equal to 35 cm. The distance between the cellular antenna and the GPS antenna in the prior art is about 15cm, and the mutual interference between cellular communication and GPS communication can be further reduced by increasing the physical distance between the cellular antenna and the GPS antenna.
In summary, in the apparatus for reducing mutual interference between signals provided by the present invention, the acquisition module acquires the synchronization signal output by the GPS module, the determination module determines whether the GPS communication is finished according to the synchronization signal output by the GPS module, if the GPS communication is in the finished state, the first control module turns off the GPS module and turns on the cellular communication module, so that the cellular communication module is in the working state, and the second control module turns off the cellular communication module and turns on the GPS module after the cellular communication is finished. Therefore, by adopting the device for reducing the mutual interference of the signals, provided by the invention, the cellular communication module is in the closed state when the GPS module is in the working state, and the GPS module is in the closed state when the cellular communication module is in the working state, so that the time-sharing work of the cellular communication and the GPS communication can be realized, the mutual interference between the cellular communication and the GPS communication can be effectively reduced, and the positioning precision of the GPS module can be effectively improved.
Referring to fig. 6, a block diagram of an electronic device according to an embodiment of the present invention is schematically shown, as shown in fig. 6, the electronic device includes a processor 301, a communication interface 302, a memory 303, and a communication bus 304, where the processor 301, the communication interface 302, and the memory 303 complete communication with each other through the communication bus 304;
the memory 303 is used for storing computer programs;
the processor 301 is configured to implement the following steps when executing the program stored in the memory 303:
acquiring a synchronous signal output by a GPS module;
judging whether the GPS communication is finished or not according to the synchronous signal output by the GPS module;
if the GPS communication is in the ending state, the GPS module is closed, and the cellular communication module is opened; and
and when the cellular communication is finished, closing the cellular communication module and opening the GPS module.
According to the electronic equipment provided by the invention, whether GPS communication is finished or not is judged according to the synchronous signal output by the GPS module by acquiring the synchronous signal output by the GPS module, if the GPS communication is in a finished state, the GPS module is closed, the cellular communication module is opened so that the cellular communication module is in a working state, and after the cellular communication is finished, the GPS module is opened again. Therefore, by adopting the electronic equipment provided by the invention, when the GPS module is in the working state, the cellular communication module is in the closed state, and when the cellular communication module is in the working state, the GPS module is in the closed state, so that the time-sharing work of cellular communication and GPS communication can be realized, the mutual interference between the cellular communication and the GPS communication can be effectively reduced, and the positioning precision of the GPS module can be effectively improved.
For specific implementation and related explanation of each step of the method, reference may be made to the method embodiment shown in fig. 2, which is not described herein again.
In addition, other implementation manners of the method for reducing mutual interference of signals, which are implemented by the processor 301 executing the program stored in the memory 303, are the same as the implementation manners mentioned in the foregoing method implementation manner, and are not described again here.
The communication bus 304 mentioned in the above electronic device may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The communication bus 304 may be divided into an address bus, a data bus, a control bus, and the like. For ease of illustration, only one thick line is shown, but this does not mean that there is only one bus or one type of bus.
The communication interface 302 is used for communication between the above-described electronic apparatus and other apparatuses.
The Processor 301 mentioned in the electronic device may be a Central Processing Unit (CPU), or may be other general-purpose Processor 301, a Digital Signal Processor 301 (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, a discrete Gate or transistor logic device, a discrete hardware component, or the like. The general purpose processor 301 may be a microprocessor 301 or the processor 301 may be any conventional processor 301 or the like, the processor 301 being the control center of the electronic device and connecting the various parts of the entire electronic device with various interfaces and lines.
The memory 303 may be used for storing the computer program, and the processor 301 implements various functions of the electronic device by running or executing the computer program stored in the memory 303 and calling data stored in the memory 303.
The memory 303 may include non-volatile and/or volatile memory 303. Non-volatile memory 303 may include read only memory 303(ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory 303 may include random access memory 303(RAM) or external cache memory 303. By way of illustration and not limitation, RAM is available in a variety of forms, such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), synchronous Link (Synchlink) DRAM (SLDRAM), memory 303 bus direct RAM (RDRAM), direct memory 303 bus dynamic RAM (DRDRAM), and memory 303 bus dynamic RAM (RDRAM).
The present invention also provides a computer-readable storage medium having stored therein a computer program which, when executed by a processor, performs the steps of:
acquiring a synchronous signal output by a GPS module;
judging whether the GPS communication is finished or not according to the synchronous signal output by the GPS module;
if the GPS communication is in the ending state, the GPS module is closed, and the cellular communication module is opened; and
and when the cellular communication is finished, closing the cellular communication module and opening the GPS module.
The computer readable storage medium provided by the invention judges whether the GPS communication is finished or not according to the synchronous signal output by the GPS module by acquiring the synchronous signal output by the GPS module, if the GPS communication is in a finished state, the GPS module is closed, the cellular communication module is opened so as to enable the cellular communication module to be in a working state, and after the cellular communication is finished, the GPS module is opened again. Therefore, by adopting the computer readable storage medium provided by the invention, when the GPS module is in the working state, the cellular communication module is in the closed state, and when the cellular communication module is in the working state, the GPS module is in the closed state, so that the time-sharing work of cellular communication and GPS communication can be realized, the mutual interference between the cellular communication and the GPS communication can be effectively reduced, and the positioning precision of the GPS module can be effectively improved.
For specific implementation and related explanation of each step of the method, reference may be made to the method embodiment shown in fig. 2, which is not described herein again.
In addition, other implementation manners of the method for reducing mutual interference of signals, which are implemented when the computer program is executed by the processor, are the same as the implementation manners mentioned in the foregoing method implementation manner, and are not described again here.
The computer-readable storage media of embodiments of the invention may take any combination of one or more computer-readable media. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: an electrical connection having one or more wires, a portable computer hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In this context, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
A computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Computer program code for carrying out operations for aspects of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, Smalltalk, C + +, and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider).
In summary, compared with the prior art, the method, the apparatus, the electronic device and the storage medium for reducing mutual interference of signals provided by the present invention have the following advantages: the invention judges whether the GPS communication is finished or not according to the synchronous signal output by the GPS module by acquiring the synchronous signal output by the GPS module, if the GPS communication is in a finished state, the GPS module is closed, and the cellular communication module is in a working state, and when the cellular communication is finished, the cellular communication module is closed, and the GPS module is opened. Therefore, the cellular communication module is in the closed state when the GPS module is in the working state, and the GPS module is in the closed state when the cellular communication module is in the working state, so that the cellular communication and the GPS communication can work in a time-sharing mode, the mutual interference between the cellular communication and the GPS communication is effectively reduced, and the positioning precision of the GPS module can be effectively improved.
It should be noted that the apparatuses and methods disclosed in the embodiments of the present application may be implemented in other ways. The apparatus embodiments described above are merely illustrative, and for example, the flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments of the present application. In this regard, each block in the flowchart or block diagrams may represent a module, a program, or a portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems that perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In addition, the functional modules in the embodiments of the present application may be integrated together to form an independent part, or each module may exist alone, or two or more modules may be integrated to form an independent part.
The above description is only for the purpose of describing the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention, and any variations and modifications made by those skilled in the art based on the above disclosure are within the scope of the appended claims. It will be apparent to those skilled in the art that various changes and modifications may be made in the invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (14)
1. A method for reducing signal interference, comprising:
acquiring a synchronous signal output by a GPS module;
judging whether the GPS communication is finished or not according to the synchronous signal output by the GPS module;
if the GPS communication is in the ending state, the GPS module is closed, and the cellular communication module is opened; and
and when the cellular communication is finished, closing the cellular communication module and opening the GPS module.
2. The method for reducing mutual signal interference according to claim 1, wherein the synchronization signal output by the GPS module is collected by an MPU.
3. The method of claim 2, wherein the cellular communication module and the MPU are integrated on a baseband chip.
4. The method for reducing mutual signal interference according to claim 2, wherein the GPS module includes a radio frequency switch circuit, and the MPU controls on/off of the radio frequency switch circuit.
5. The method of claim 1, wherein the GPS signal is separated from the cellular signal by more than 25 dB.
6. The method of claim 1, wherein the distance between the cellular antenna and the GPS antenna is greater than or equal to 35 cm.
7. An apparatus for reducing signal interference, comprising:
the acquisition module is used for acquiring the synchronous signal output by the GPS module;
the judging module is used for judging whether the GPS communication is finished or not according to the synchronous signal output by the GPS module;
the first control module is used for closing the GPS module and opening the cellular communication module when the GPS communication is in the ending state; and
and the second control module is used for closing the cellular communication module and opening the GPS module after the cellular communication is finished.
8. The apparatus for reducing mutual signal interference according to claim 7, wherein the synchronization signal output by the GPS module is collected by an MPU.
9. The apparatus of claim 8, wherein the cellular communication module and the MPU are integrated on a baseband chip.
10. The apparatus for reducing mutual signal interference according to claim 8, wherein the GPS module includes a radio frequency switch circuit, and the MPU controls on/off of the radio frequency switch circuit.
11. The apparatus of claim 7, wherein the GPS signal is separated from the cellular signal by more than 25 dB.
12. The apparatus of claim 7, wherein the distance between the cellular antenna and the GPS antenna is greater than or equal to 35 cm.
13. An electronic device, comprising a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory complete communication with each other through the communication bus;
the memory is used for storing a computer program;
the processor, when executing the program stored in the memory, implementing the method of any of claims 1 to 6.
14. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the method of any one of claims 1 to 6.
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Application publication date: 20210226 |