CN116707562A - 5G communication equipment PA protection system and method for automobile - Google Patents
5G communication equipment PA protection system and method for automobile Download PDFInfo
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- CN116707562A CN116707562A CN202310982656.7A CN202310982656A CN116707562A CN 116707562 A CN116707562 A CN 116707562A CN 202310982656 A CN202310982656 A CN 202310982656A CN 116707562 A CN116707562 A CN 116707562A
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- 238000004590 computer program Methods 0.000 description 7
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- 101100434411 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) ADH1 gene Proteins 0.000 description 4
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Classifications
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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
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/3822—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving specially adapted for use in vehicles
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
- G01R19/2503—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques for measuring voltage only, e.g. digital volt meters (DVM's)
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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
- H04B1/0003—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain
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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
- 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
- H04B2001/0408—Circuits with power amplifiers
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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 invention discloses a PA protection system and method for 5G communication equipment of an automobile, and belongs to the technical field of PA protection. The system of the invention comprises: the antenna detection circuit is used for measuring the voltage of the passive antenna connection state so as to obtain a measured value of the passive antenna connection state voltage, the 5G communication module is used for identifying the measured value measured by the antenna detection circuit and sending the measured value to the software processing unit, the software processing unit is used for determining the state of the passive antenna according to the measured value, generating a response strategy based on the state of the passive antenna, sending a control signal for controlling the PA according to the response strategy, and controlling the opening or closing of the PA radio frequency output based on the control signal. The invention not only can ensure the communication function of the automobile in a normal scene, but also can prevent the hidden trouble that the communication function cannot be repaired due to the damage of the PA device in an abnormal antenna state.
Description
Technical Field
The invention relates to the technical field of PA protection, in particular to a PA protection system and method for 5G communication equipment of an automobile.
Background
With the development of the internet of vehicles technology, the 5G network era is gradually being applied to the specific internet of vehicles field of automatic driving due to the characteristics of high transmission, low time delay, high stability and the like. The 5G Internet of vehicles can truly realize the omnibearing network connection of the inside of the vehicle, the vehicle and people, the vehicle and the vehicle, the vehicle and the road, and the vehicle and the service platform, thereby improving the reliability and the processing capacity of automatic driving and further promoting the planning popularization of automatic driving application.
The key core module of the 5G car networking equipment is a 5G communication module, provides vehicle-mounted 5G communication capacity, assists car high-speed network connection, and realizes driving automation requirements. And in the power-on use process of the device, the uplink and downlink data communication is completed through the MIMO antenna. Considering that in the actual running or equipment assembling scene of the automobile, the antenna is abnormally separated or disconnected, and under the situation, the communication module can still receive weak 5G signals as the antenna through the exposed metal part, and continuously search and network injection actions of the network base station are carried out with high transmitting power; in addition, the impedance mismatch of the radio frequency path is caused by the disconnection state of the antenna, so that a high-power reflection impact module radio frequency front end device Power Amplifier (PA) is generated, and the PA is burnt out after the PA exceeds the tolerance range of the electrical characteristics.
Disclosure of Invention
In view of the above problems, the present invention proposes a 5G communication device PA protection system for an automobile, comprising: the system comprises a 5G communication module, an antenna detection circuit, a passive antenna and a software processing unit, wherein the 5G communication module is internally provided with a radio frequency front-end device power amplifier PA;
the antenna detection circuit is used for measuring the voltage of the passive antenna connection state so as to obtain a measured value of the passive antenna connection state voltage, the 5G communication module is used for identifying the measured value measured by the antenna detection circuit and sending the measured value to the software processing unit, the software processing unit is used for determining the state of the passive antenna according to the measured value, generating a response strategy based on the state of the passive antenna, sending a control signal for controlling the PA according to the response strategy, and controlling the opening or closing of the PA radio frequency output based on the control signal.
Optionally, the 5G communication module and the passive antenna are also suitable for an automotive communication scenario.
Optionally, if the measured value is V1, determining that the passive antenna is in a normal communication state, and controlling the PA radio frequency output to be on based on the control signal, i.e. exiting from the flight mode of the 5G communication module.
Optionally, if the measured value is V2, determining that the passive antenna is in a disconnected communication state, and controlling the PA radio frequency output to be closed based on the control signal, namely entering a flight mode of the 5G communication module.
Optionally, the 5G communication module includes: an ADC interface and an ANT interface; the antenna detection circuit includes: the device comprises a voltage division power supply, a pull-up resistor, an LC high-frequency filter circuit, a blocking capacitor and a pull-down resistor;
in the antenna detection circuit, one side of the voltage division power supply is connected with one side of a pull-up resistor, the other side of the pull-up resistor is connected with one side of an LC high-frequency filter circuit, the other side of the LC high-frequency filter circuit is respectively connected with one sides of a blocking capacitor and a pull-down resistor, an ANT interface is connected with a passive antenna through the blocking capacitor, one side of the pull-down resistor is connected with the passive antenna, the other side of the pull-down resistor is grounded, and an ADC interface is connected between the pull-up resistor and the LC high-frequency filter circuit.
Optionally, the ADC interface is configured to receive the measured value measured by the antenna detection circuit.
Optionally, the pull-up resistor, the voltage-dividing power supply and the pull-down resistor are used for forming a voltage-dividing circuit in the PA protection system, and the voltage-dividing circuit is used for generating different voltages for the passive antenna when the passive antenna is in different states.
Optionally, the LC high frequency filter circuit is configured to filter out a high frequency signal on the passive antenna radio frequency path.
Optionally, the blocking capacitor is used for filtering direct current signals on the radio frequency path of the passive antenna.
In still another aspect, the present invention further provides an automobile PA protection method, including:
measuring the voltage of the passive antenna connection state through an antenna detection circuit to obtain a measured value of the passive antenna connection state voltage;
identifying the measured value measured by the antenna detection circuit through a 5G communication module, and sending the measured value to a software processing unit;
and determining the state of the passive antenna according to the measured value by a software processing unit, generating a response strategy based on the state of the passive antenna, sending a control signal for controlling the PA according to the response strategy, and controlling the opening or closing of the radio frequency output of the PA based on the control signal.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides a 5G communication equipment PA protection system for an automobile, which comprises: the system comprises a 5G communication module, an antenna detection circuit, a passive antenna and a software processing unit, wherein the 5G communication module is internally provided with a radio frequency front-end device power amplifier PA; the antenna detection circuit is used for measuring the voltage of the passive antenna connection state so as to obtain a measured value of the passive antenna connection state voltage, the 5G communication module is used for identifying the measured value measured by the antenna detection circuit and sending the measured value to the software processing unit, the software processing unit is used for determining the state of the passive antenna according to the measured value, generating a response strategy based on the state of the passive antenna, sending a control signal for controlling the PA according to the response strategy, and controlling the opening or closing of the PA radio frequency output based on the control signal. The invention not only can ensure the communication function of the automobile in a normal scene, but also can prevent the hidden trouble that the communication function cannot be repaired due to the damage of the PA device in an abnormal antenna state.
Drawings
FIG. 1 is a schematic diagram of a system according to an embodiment of the present invention;
fig. 2 is a schematic diagram illustrating connection between a passive antenna and a 5G communication module according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of the operation of the software processing unit antenna monitoring program according to the embodiment of the present invention;
FIG. 4 is a flow chart of the system protection according to the embodiment of the present invention;
FIG. 5 is a schematic flow chart of the method of the present invention.
Detailed Description
The exemplary embodiments of the present invention will now be described with reference to the accompanying drawings, however, the present invention may be embodied in many different forms and is not limited to the examples described herein, which are provided to fully and completely disclose the present invention and fully convey the scope of the invention to those skilled in the art. The terminology used in the exemplary embodiments illustrated in the accompanying drawings is not intended to be limiting of the invention. In the drawings, like elements/components are referred to by like reference numerals.
Unless otherwise indicated, terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art. In addition, it will be understood that terms defined in commonly used dictionaries should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense.
Example 1:
the invention provides a 5G communication equipment PA protection system for an automobile, which is shown in figure 1 and comprises: the system comprises a 5G communication module, an antenna detection circuit, a passive antenna and a software processing unit, wherein the 5G communication module is internally provided with a radio frequency front-end device power amplifier PA;
the antenna detection circuit is used for measuring the voltage of the passive antenna connection state so as to obtain a measured value of the passive antenna connection state voltage, the 5G communication module is used for identifying the measured value measured by the antenna detection circuit and sending the measured value to the software processing unit, the software processing unit is used for determining the state of the passive antenna according to the measured value, generating a response strategy based on the state of the passive antenna, sending a control signal for controlling the PA according to the response strategy, and controlling the opening or closing of the PA radio frequency output based on the control signal.
The 5G communication module and the passive antenna are further suitable for an automobile communication scene.
And if the measured value is V1, determining that the passive antenna is in a normal communication state, and controlling the PA radio frequency output to be opened based on a control signal, namely exiting the flight mode of the 5G communication module.
And if the measured value is V2, determining that the passive antenna is in a disconnected communication state, and controlling the PA radio frequency output to be closed based on a control signal, namely entering a flight mode of the 5G communication module.
Wherein, 5G communication module includes: an ADC interface and an ANT interface; the antenna detection circuit includes: the device comprises a voltage division power supply, a pull-up resistor, an LC high-frequency filter circuit, a blocking capacitor and a pull-down resistor;
in the antenna detection circuit, one side of the voltage division power supply is connected with one side of a pull-up resistor, the other side of the pull-up resistor is connected with one side of an LC high-frequency filter circuit, the other side of the LC high-frequency filter circuit is respectively connected with one sides of a blocking capacitor and a pull-down resistor, an ANT interface is connected with a passive antenna through the blocking capacitor, one side of the pull-down resistor is connected with the passive antenna, the other side of the pull-down resistor is grounded, and an ADC interface is connected between the pull-up resistor and the LC high-frequency filter circuit.
The ADC interface is used for receiving the measured value measured by the antenna detection circuit.
The pull-up resistor, the voltage dividing power supply and the pull-down resistor are used for forming a voltage dividing circuit in the PA protection system, and the voltage dividing circuit is used for generating different voltages for the passive antenna when the passive antenna is in different states.
The LC high-frequency filter circuit is used for filtering high-frequency signals on the passive antenna radio frequency path.
The blocking capacitor is used for filtering direct current signals on the passive antenna radio frequency path.
Example 2:
the invention provides a 5G communication equipment PA protection system for an automobile, which is shown in figure 1 and comprises: the system comprises a 5G communication module, an antenna detection circuit, a passive antenna and a software processing unit, wherein the 5G communication module is internally provided with a radio frequency front-end device power amplifier PA;
the antenna detection circuit is used for measuring the voltage of the passive antenna connection state so as to obtain a measured value of the passive antenna connection state voltage, the 5G communication module is used for identifying the measured value measured by the antenna detection circuit and sending the measured value to the software processing unit, the software processing unit is used for determining the state of the passive antenna according to the measured value, generating a response strategy based on the state of the passive antenna, sending a control signal for controlling the PA according to the response strategy, and controlling the opening or closing of the PA radio frequency output based on the control signal.
The system comprises a 5G communication module, an antenna detection circuit, a software processing unit and a power amplifier PA, wherein the 5G communication module and the antenna detection circuit are internally provided with a radio frequency front-end device PA;
5G communication module part: the 5G communication module is a main control part of the PA protection system, is responsible for receiving and transmitting 5G communication data, provides 5G service for equipment, and is also responsible for identifying the connection state of a corresponding antenna in the PA protection system and making quick response. Meanwhile, the radio frequency PA serving as a vulnerable device is also integrated inside the module, is an important device in the radio frequency front end, and the performance of the radio frequency PA directly determines important factors such as strength, stability and power consumption of signals and determines user experience. Therefore, protection of the PA device is of great importance, and the 5G communication module comprises a plurality of interfaces, including an ADC1 and an ADC2 interface, where the ADC1 interface is used for receiving the measured value V1 measured by the antenna detection circuit, and the ADC1 interface is used for receiving the measured value V2 measured by the antenna detection circuit, and further includes MAIN, DRX, MIMO3, MIMO4 interfaces, MAIN, DRX, MIMO, and MIMO4 interfaces are ANT interfaces.
Passive antenna portion: as shown in fig. 2, the passive antenna has four paths, and the four paths are connected with the ANT interface of the 5G communication module and are MAIN, DRX, MIMO and MIMO4 respectively, wherein the transmitting end of the 5G mobile MAIN frequency band N41 is located in MIMO3 (MIMO 4 transmitting non-MAIN frequency band), and the transmitting ends of the 5G communication and telecommunication MAIN frequency band N78 are located in DRX (MAIN transmitting non-MAIN frequency band). When the antenna is disconnected in the 5G frequency band, the signal can be reduced to be weak, the module transmitting end continuously transmits with high power to perform network searching action in the state, and the transmitting high power mostly reversely flows back to the module inner transmitting end due to the fact that the antenna path is in an impedance mismatch state in the disconnected state, and at the moment, the radio frequency front-end device PA is impacted to cause the risk of burning loss. Therefore, the PA protection system focuses on detecting and software protecting the corresponding policy for the two paths.
An antenna detection circuit section: the antenna detection mode is to identify the connection state of the antenna by using AD detection. The circuit mainly comprises a voltage division power supply, a pull-up resistor, a filter circuit, a blocking capacitor and a pull-down resistor of an antenna part. After the antenna is inserted, the plate-level pull-up resistor and the antenna pull-down resistor form partial voltage, and at the moment, an AD voltage value V1 is sent to an ADC1 interface and is identified as a connection state; after the antenna is disconnected, the pull-up resistor pulls up the AD voltage to V2 and sends the V2 to the ADC2 interface, and the AD voltage is identified as an off state. A blocking capacitor is arranged on the radio frequency path, and the capacitor can isolate the direct current signal so that the radio frequency signal normally passes through. An LC high-frequency filter circuit is arranged between the blocking capacitor and the antenna, so that high-frequency signals of a radio frequency path are filtered, and the accuracy of an interference AD voltage value and noise are prevented from entering the system.
Based on the hardware circuit, the software processing unit realizes N41 and N78 antenna connection state monitoring and protection strategies after disconnection.
Example 3:
the invention provides a 5G communication equipment PA protection system for an automobile, which is shown in figure 1 and comprises: the system comprises a 5G communication module, an antenna detection circuit, a passive antenna and a software processing unit, wherein the 5G communication module is internally provided with a radio frequency front-end device power amplifier PA;
the antenna detection circuit is used for measuring the voltage of the passive antenna connection state so as to obtain a measured value of the passive antenna connection state voltage, the 5G communication module is used for identifying the measured value measured by the antenna detection circuit and sending the measured value to the software processing unit, the software processing unit is used for determining the state of the passive antenna according to the measured value, generating a response strategy based on the state of the passive antenna, sending a control signal for controlling the PA according to the response strategy, and controlling the opening or closing of the PA radio frequency output based on the control signal.
The software processing unit includes an antenna monitoring program, as shown in fig. 3, where the antenna monitoring program is divided into two layers in the present invention: layer1 and Layer2, through antenna monitor program, layer2 will ADC signal and RF signal, transmits to hardware part, and rethread Layer2 will RF control signal transmits to Layer1, through Layer1 control the opening or closing of PA radio frequency output, its work flow based on antenna monitor program's PA protection system is as follows:
changing the radio frequency state of the 5G communication module into a power-on default to enter a flight mode, and adding an antenna monitoring program into a power-on self-starting program;
the antenna monitoring procedure is divided into two layers: layer1 is a Physical Layer, and is used for identifying the Physical connection and disconnection states of a designated antenna, and currently comprises an antenna N41 and an antenna N78; the Layer2 is a Logic Layer and is used for controlling the radio frequency module to enter or exit the flight mode according to the state of the Layer1 so as to achieve the purpose of protecting the PA;
after the PA protection system is electrified, the antenna monitoring program automatically runs, the first default antenna is in a disconnected steady state, a software timer taking 5ms as a period is started, and the adc values corresponding to the N41 and N78 antennas are read in a timer response function to confirm that the current corresponding antenna is in a disconnected or connected state;
layer1 monitors the physical connection status of the antenna and returns the result to Layer2. The Layer2 controls the module to enter or exit the flight mode according to the returned result of the Layer1 so as to achieve the purpose of protecting the PA after the antenna is disconnected;
the system can effectively identify the state change of the antenna and timely exit or enter the flight mode, so that the automobile does not need to worry about the abnormal change of the antenna connection state in the actual running environment or the loading process of communication equipment, thereby damaging radio frequency (PA) devices in the module and causing unrecoverable communication faults, and the addition of the PA protection system does not negatively affect the radio frequency performance and the network quality.
Example 4:
the invention provides a 5G communication equipment PA protection system for an automobile, which is shown in figure 1 and comprises: the system comprises a 5G communication module, an antenna detection circuit, a passive antenna and a software processing unit, wherein the 5G communication module is internally provided with a radio frequency front-end device power amplifier PA;
the antenna detection circuit is used for measuring the voltage of the passive antenna connection state so as to obtain a measured value of the passive antenna connection state voltage, the 5G communication module is used for identifying the measured value measured by the antenna detection circuit and sending the measured value to the software processing unit, the software processing unit is used for determining the state of the passive antenna according to the measured value, generating a response strategy based on the state of the passive antenna, sending a control signal for controlling the PA according to the response strategy, and controlling the opening or closing of the PA radio frequency output based on the control signal.
The software processing unit includes an antenna monitoring program, as shown in fig. 3, where the antenna monitoring program is divided into two layers in the present invention: layer1 and Layer2, through the antenna monitor program, layer2 transmits ADC signal and RF signal to the hardware part, and then Layer2 transmits RF control signal to Layer1, through Layer1 control the opening or closing of PA radio frequency output, it is based on the specific workflow of the protection strategy after the antenna monitor program's PA protection system realizes N41 and N78 antenna connection state control, and the disconnection, as shown in FIG. 4, include:
the system software processing unit divides the antenna monitoring program into two layers: layer1 is a Physical Layer, and is used for identifying the Physical connection and disconnection states of a designated antenna, and the antennas comprise N41 and N78; the Layer2 is a Logic Layer and is used for controlling the radio frequency module to enter or exit the flight mode according to the state of the Layer1 so as to achieve the purpose of protecting the PA;
after the system is electrified, the antenna monitoring program automatically runs, the first default antenna is in a disconnected steady state, a software timer with a period of 5ms is started, and the adc values corresponding to the N41 and N78 antennas are read in a timer response function to confirm that the current corresponding antenna is in a disconnected or connected state;
layer1 antenna connection identification: when the N41 or N78 antenna is in a disconnecting state or a disconnecting_stable state, the corresponding antenna is detected to be in a connecting state for the first time, and the corresponding antenna is transited to the connecting_stable state. In the connect_stable state, detecting that the corresponding antenna is in a connected state for 14 times continuously, shifting to the connect state, and notifying Layer2;
layer1 antenna disconnection identification: when the N41 or N78 antenna is in the connect state or the connect_stable state, the antenna is detected to be in the disconnected state for the first time, and the antenna is shifted to the disconnect_stable state. In the disconnecting_stable state, detecting that the antenna is in a disconnected state for 20 times continuously, migrating to the disconnecting state, and notifying Layer2;
abnormal state identification: when the antenna is maintained in the disconnecting_stable state or the connecting_stable state for 300ms or more, the antenna is regarded as being in an unstable state at this time, and Layer2 is notified.
The Layer2 control module enters a flight mode (turns off the radio frequency): when the current radio frequency is in an on state, any antenna disconnection steady state notification sent by Layer1 is received, or the antenna state is in an unstable state, an interface request module is called to enter a flight mode, so that the purpose of quickly protecting the PA after the antenna is disconnected is achieved;
the Layer2 control module exits the flight mode (turns on the radio frequency): the current radio frequency is in a closed state, an antenna connection steady state notification sent by Layer1 is received, all antennas are read from Layer1 to be in connection steady state currently, and an interface request module is called to exit a flight mode;
by using the system provided by the invention, the damage risk of N41 PA and N78 PA of the 5G module is avoided, the reliability of 5G communication is improved, and the reliability of the Internet of vehicles system and the safety of automatic driving of automobiles are further improved.
Example 5:
the invention also provides a 5G communication equipment PA protection method S500, as shown in FIG. 5, comprising the following steps:
step S501, measuring the voltage of the passive antenna connection state through an antenna detection circuit to obtain a measured value of the passive antenna connection state voltage;
step S502, the measured value measured by the antenna detection circuit is identified through a 5G communication module, and the measured value is sent to a software processing unit;
step S503, determining, by a software processing unit, a state of the passive antenna according to the measured value, generating a response policy based on the state of the passive antenna, and sending a control signal for controlling the PA according to the response policy, and controlling the PA radio frequency output to be turned on or turned off based on the control signal.
The invention not only can ensure the communication function of the automobile in a normal scene, but also can prevent the hidden trouble that the communication function cannot be repaired due to the damage of the PA device in an abnormal antenna state.
It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein. The scheme in the embodiment of the invention can be realized by adopting various computer languages, such as object-oriented programming language Java, an transliteration script language JavaScript and the like.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (10)
1. A 5G communication device PA protection system for an automobile, the system comprising: the system comprises a 5G communication module, an antenna detection circuit, a passive antenna and a software processing unit, wherein the 5G communication module is internally provided with a radio frequency front-end device power amplifier PA;
the antenna detection circuit is used for measuring the voltage of the passive antenna connection state so as to obtain a measured value of the passive antenna connection state voltage, the 5G communication module is used for identifying the measured value measured by the antenna detection circuit and sending the measured value to the software processing unit, the software processing unit is used for determining the state of the passive antenna according to the measured value, generating a response strategy based on the state of the passive antenna, sending a control signal for controlling the PA according to the response strategy, and controlling the opening or closing of the PA radio frequency output based on the control signal.
2. The PA protection system of claim 1, wherein the 5G communication module and the passive antenna are further adapted for use in a communication scenario with an automobile.
3. The PA protection system of claim 1, wherein if the measured value is V1, the passive antenna is determined to be in a normal communication state, and the PA rf output is controlled to be turned on based on the control signal, i.e. to exit from the flight mode of the 5G communication module.
4. The PA protection system of claim 1, wherein if the measured value is V2, determining that the passive antenna is in a disconnected communication state, and controlling the PA rf output to be turned off based on the control signal, that is, entering a flight mode of the 5G communication module.
5. The PA protection system of claim 1, wherein the 5G communication module comprises: an ADC interface and an ANT interface; the antenna detection circuit includes: the device comprises a voltage division power supply, a pull-up resistor, an LC high-frequency filter circuit, a blocking capacitor and a pull-down resistor;
in the antenna detection circuit, one side of the voltage division power supply is connected with one side of a pull-up resistor, the other side of the pull-up resistor is connected with one side of an LC high-frequency filter circuit, the other side of the LC high-frequency filter circuit is respectively connected with one sides of a blocking capacitor and a pull-down resistor, an ANT interface is connected with a passive antenna through the blocking capacitor, one side of the pull-down resistor is connected with the passive antenna, the other side of the pull-down resistor is grounded, and an ADC interface is connected between the pull-up resistor and the LC high-frequency filter circuit.
6. The PA protection system of claim 5 wherein the ADC interface is configured to receive measurements measured by an antenna detection circuit.
7. The PA protection system of claim 5 wherein the pull-up resistor, voltage dividing power supply, and pull-down resistor are used to form a voltage dividing circuit within the PA protection system for generating different voltages for the passive antenna when the passive antenna is in different states.
8. The PA protection system of claim 5 wherein said LC high frequency filter circuit is configured to filter out high frequency signals on a passive antenna radio frequency path.
9. The PA protection system of claim 5 wherein the dc blocking capacitor is configured to filter out dc signals on a passive antenna rf path.
10. A method of PA protection for a 5G communication device using the PA protection system of any of claims 1-9, the method comprising:
measuring the voltage of the passive antenna connection state through an antenna detection circuit to obtain a measured value of the passive antenna connection state voltage;
identifying the measured value measured by the antenna detection circuit through a 5G communication module, and sending the measured value to a software processing unit;
and determining the state of the passive antenna according to the measured value by a software processing unit, generating a response strategy based on the state of the passive antenna, sending a control signal for controlling the PA according to the response strategy, and controlling the opening or closing of the radio frequency output of the PA based on the control signal.
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| CN202310982656.7A CN116707562B (en) | 2023-08-07 | 2023-08-07 | 5G communication equipment PA protection system and method for automobile |
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| CN116707562B CN116707562B (en) | 2023-10-31 |
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| CN110034773A (en) * | 2019-03-28 | 2019-07-19 | 南京宽超通信技术有限公司 | A kind of day leads to ground satellite station adaptive active antenna and its method of adjustment |
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