CN107979400B - A kind of antenna controling circuit and method - Google Patents
A kind of antenna controling circuit and method Download PDFInfo
- Publication number
- CN107979400B CN107979400B CN201610921258.4A CN201610921258A CN107979400B CN 107979400 B CN107979400 B CN 107979400B CN 201610921258 A CN201610921258 A CN 201610921258A CN 107979400 B CN107979400 B CN 107979400B
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- control system
- master control
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
-
- 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
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
-
- 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
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/04—Arrangements for maintaining operational condition
Abstract
The embodiment of the invention discloses a kind of antenna controling circuit and methods；The circuit includes: antenna system, charging circuit, detection circuit and master control system；Wherein, antenna system may include: main antenna, emergency antenna and antenna change-over switch；Main antenna is connected to by charging circuit；Detection circuit includes charge power supply, charge power supply switch and measure loop；Master control system indicates that charge power supply charges to charging circuit for opening by control charge power supply switch；And obtain charge parameter detected by measure loop；And the working condition of main antenna is determined according to preset determining strategy according to charge parameter；And when determining the working condition exception of main antenna, the antenna connecting with radio circuit is switched to emergency antenna by main antenna by the antenna change-over switch controlled in antenna system.
Description
Technical field
The present invention relates to wireless communication technique more particularly to a kind of antenna controling circuit and methods.
Background technique
Radio-frequency antenna is the basic structure for realizing wireless communication as the important ring in wireless communication.With logical
The development of letter technology, user increasingly increase the data throughout demand of wireless communication, and radio-frequency antenna is also by original Dan Tian
Line System Development is complicated multiple-input multiple-output (MIMO, Multiple-Input Multiple-Output) antenna system.In order to
Ensure good communication quality, for complicated antenna system, every antenna must have a good radiation characteristic, and any one
The damage or connection of antenna are abnormal all to influence the normal operation of entire communication system, or even it is also possible to brings to preceding end-fire
The damage of frequency link.
Currently in order to ensure the normal operation of the complex antennas system such as mimo antenna system, avoid the occurrence of due to antenna
There is the case where communication failure in entire communication system caused by connection exception or antenna damage, can all examine to antenna system
When surveying, but detecting that antenna system breaks down, normal communication can be influenced.
Summary of the invention
In order to solve the above technical problems, an embodiment of the present invention is intended to provide a kind of antenna controling circuit and methods, in antenna
Connection status still is able to ensure normal communication state when occurring abnormal, to avoid leading to nothing because of antenna failure
The case where method normal communication, occurs.
The technical scheme of the present invention is realized as follows:
In a first aspect, the circuit includes: antenna system the embodiment of the invention provides a kind of antenna controling circuit, fill
Circuit, detection circuit and master control system；Wherein, the antenna system may include: main antenna, emergency antenna and antenna
Switching switch；
The main antenna is connected to by the charging circuit；
The detection circuit includes charge power supply, charge power supply switch and measure loop；
The master control system indicates the charge power supply to described for opening by controlling charge power supply switch
Charging circuit charges；
And obtain charge parameter detected by the measure loop；
And the working condition of the main antenna is determined according to preset determining strategy according to the charge parameter；
And when determining the working condition exception of the main antenna, the antenna switching in the antenna system is controlled
The antenna connecting with radio circuit is switched to the emergency antenna by the main antenna by switch.
In the above scheme, the charging circuit is especially by the biggish capacitive device series inductance of capacitance or resistance
And it is grounded to realize.
In the above scheme, the master control system is controlled the antenna respectively and is cut by universal input/output GPIO interface
Switch and charge power supply switch are changed, and the measure loop is obtained by A-D converter ADC detection interface and is detected
The charge parameter arrived.
In the above scheme, the concrete form of measure loop is bleeder circuit, the bleeder circuit in the detection circuit
Including the second port B of first port E, Xiang Suoshu charging circuit input voltage that is connect with the charge power supply and with it is described
The ADC detection interface connection of master control system, exports the third port D of charging voltage.
In the above scheme, the master control system, is specifically used for:
When the voltage VD for detecting the third port D is zero, the main antenna short circuit is determined；
When detecting that VD is much larger than the end voltage when charging circuit charges normal, determine that the main antenna is opened
Road；
When the difference of end voltage when detecting that VD and the charging circuit are charged normal is in preset range, determine
The main antenna works normally.
In the above scheme, the master control system, is specifically used for: when detecting the main antenna short circuit or open circuit,
It controls the antenna change-over switch and the antenna connecting with radio circuit is switched into the emergency antenna by the main antenna.
In the above scheme, the master control system, is specifically used for:
The first charging time T1 and the second charging time T2 are set in preset detection time section T, wherein T > T2 > T1；
And it detects the third port D and is filled in the corresponding voltage value V1 of the first charging time T1 and described second
The corresponding voltage value V2 of electric time T2；
And the working condition of main antenna is determined according to the relationship between V1 and V2.
In the above scheme, the master control system, is used for:
When the V2 is greater than the V1, determine that the main antenna works normally；Otherwise, it determines the main antenna work
Make abnormal state.
In the above scheme, the concrete form of measure loop is bleeder circuit, the bleeder circuit in the detection circuit
It include: to be connect to the input voltage port B2 of the charging circuit input voltage and with the ADC of master control system detection interface,
Export the output charging voltage port D2 of charging voltage；Wherein, the input voltage port B2 and capacitor in the charging circuit
Charging access point be connected.
In the above scheme, the master control system, is used for:
When the voltage VD for detecting the output charging voltage port D2 is zero, the main antenna open circuit is determined；
When detecting that VD is much larger than the end voltage when charging circuit charges normal, determine that the main antenna is short
Road；
When the difference of end voltage when detecting that VD and the charging circuit are charged normal is in preset range, determine
The main antenna works normally.
Second aspect, the embodiment of the invention provides a kind of method of controlling antenna, the method is applied to day line traffic control electricity
Lu Zhong, the antenna controling circuit include antenna system, charging circuit, detection circuit and master control system；Wherein, the aerial system
System may include: main antenna, emergency antenna and antenna change-over switch；The main antenna is connected to by the charging circuit；Institute
Stating detection circuit includes charge power supply, charge power supply switch and measure loop；After the charge power supply switch is opened, the charging
Power supply charges to the charging circuit, and the measure loop detects the charge parameter of the charging circuit during the charging process；Institute
The method of stating includes:
The master control system switches on to indicate that the charge power supply is filled to described by the control charge power supply
Circuit charges；
The master control system obtains charge parameter detected by the measure loop；
The master control system determines the work of the main antenna according to the charge parameter according to preset determining strategy
State；
When the master control system determines the working condition exception of the main antenna, the master control system controls the day
The antenna connecting with radio circuit is switched to the emergency antenna by the main antenna by the antenna change-over switch in linear system system.
In the above scheme, the master control system controls antenna switching by universal input/output GPIO interface respectively and opens
It closes and charge power supply switchs, and interface is detected by A-D converter ADC and obtains charge parameter detected by measure loop.
In the above scheme, the concrete form of measure loop is bleeder circuit, the bleeder circuit in the detection circuit
Including the second port B of first port E, Xiang Suoshu charging circuit input voltage that is connect with the charge power supply and with it is described
The ADC detection interface connection of master control system, exports the third port D of charging voltage.
In the above scheme, the master control system obtains charge parameter detected by the measure loop, specifically can be with
Include:
The master control system detects in the bleeder circuit third port D in preset inspection in preset detection time section
Survey voltage value VD when period arrival.
Correspondingly, the master control system determines the main antenna according to preset determining strategy according to the charge parameter
Working condition, specifically include:
Voltage of the master control system according to third port D in the bleeder circuit when preset detection time section reaches
Value VD determines the working condition of the main antenna.
In the above scheme, the master control system is according to third port D in the bleeder circuit in preset detection time
Voltage value when section reaches determines the working condition of the main antenna, may include:
When the master control system detects that VD is zero, the main antenna short circuit is determined；
When the master control system detects that VD is much larger than the end voltage when charging circuit charges normal, described in determination
Main antenna open circuit；
The difference of end voltage when the master control system detects VD and the charging circuit charges normal is in default
When in range, determine that the main antenna works normally；Wherein, described in the open circuit and short-circuit condition of the main antenna indicate
The working condition of main antenna is abnormal.
In the above scheme, the master control system obtains charge parameter detected by the measure loop, specifically can be with
Include:
The first charging time T1 and the second charging time T2 is arranged in preset detection time section T in the master control system,
Wherein, T > T2 > T1；
The master control system detects the bleeder circuit third port D in the corresponding voltage value of the first charging time T1
The V1 and corresponding voltage value V2 of the second charging time T2；
Correspondingly, the master control system determines the main antenna according to preset determining strategy according to the charge parameter
Working condition, specifically include: the master control system determines the work shape of the main antenna according to the relationship between V1 and V2
State.
In the above scheme, the master control system determines the work shape of the main antenna according to the relationship between V1 and V2
State may include:
When V2 is greater than V1, the master control system determines that the main antenna works normally；Otherwise, master control system determines institute
It is abnormal to state main antenna working condition.
In the above scheme, the concrete form of measure loop is bleeder circuit, the bleeder circuit in the detection circuit
It is connect including the input voltage port B2 to the charging circuit input voltage and with the ADC of master control system detection interface,
Export the output charging voltage port D2 of charging voltage；Wherein, the input voltage port B2 and capacitor in the charging circuit
Charging access point be connected.
In the above scheme, the master control system obtains charge parameter detected by the measure loop, specifically can be with
Include:
The master control system detects output charging voltage port D2 in the bleeder circuit and arrives in preset detection time section
Up to when voltage value；
Correspondingly, the master control system determines the main antenna according to preset determining strategy according to the charge parameter
Working condition, specifically include:
The master control system is arrived according to output charging voltage port D2 in the bleeder circuit in preset detection time section
Up to when voltage value VD determine the working condition of the main antenna.
In the above scheme, the master control system is according to output charging voltage port D2 in the bleeder circuit preset
Voltage value VD when detection time section reaches determines the working condition of the main antenna, may include:
When the master control system detects that VD is zero, the main antenna open circuit is determined；
When the master control system detects that VD is much larger than the end voltage when charging circuit charges normal, described in determination
Main antenna short circuit；
The difference of end voltage when the master control system detects VD and the charging circuit charges normal is in default
When in range, determine that the main antenna works normally；Wherein, described in the open circuit and short-circuit condition of the main antenna indicate
The working condition of main antenna is abnormal.
The third aspect, the embodiment of the invention provides a kind of method of controlling antenna, which comprises
The other charging circuit for being connected to main antenna is set；
It charges to the charging circuit, and charge parameter is detected by detection circuit；
The working condition of the main antenna is determined according to preset determining strategy according to the charge parameter；
When the working condition exception of the main antenna, the antenna connecting with radio circuit is cut by the main antenna
Shift to emergency antenna.
In the above scheme, the detection circuit is bleeder circuit, and the bleeder circuit includes connecting with the charge power supply
It the second port B of first port E, the Xiang Suoshu charging circuit input voltage connect and is connect with the ADC of master control system detection
Mouth connection, exports the third port D of charging voltage.
In the above scheme, described that charge parameter is detected by detection circuit, it specifically includes: in preset detection time section
Voltage value VD of the third port D when preset detection time section reaches in the interior detection bleeder circuit；
Correspondingly, the work shape for determining the main antenna according to preset determining strategy according to the charge parameter
State specifically includes:
According to voltage value VD determination of the third port D in the bleeder circuit when preset detection time section reaches
The working condition of main antenna.
In the above scheme, it is described according to third port D in the bleeder circuit when preset detection time section reaches
Voltage value VD determine the working condition of the main antenna, specifically include:
When detecting VD is zero, the main antenna short circuit is determined；
When detecting that VD is much larger than the end voltage when charging circuit charges normal, determine that the main antenna is opened
Road；
When the difference of end voltage when detecting that VD and the charging circuit are charged normal is in preset range, determine
The main antenna works normally；Wherein, the open circuit and short-circuit condition of the main antenna indicate the work of the main antenna
Make abnormal state.
In the above scheme, described that charge parameter is detected by detection circuit, it specifically includes:
The first charging time T1 and the second charging time T2 are set in preset detection time section T, wherein T > T2 > T1；
The master control system detects the bleeder circuit third port D in the corresponding voltage value of the first charging time T1
The V1 and corresponding voltage value V2 of the second charging time T2；
Correspondingly, the work shape for determining the main antenna according to preset determining strategy according to the charge parameter
State specifically includes: when V2 is greater than V1, determining that the main antenna works normally；The shape otherwise, it determines main antenna works
State is abnormal.
In the above scheme, the detection circuit is bleeder circuit, and the bleeder circuit includes defeated to the charging circuit
Enter the input voltage port B2 of voltage and connect with the ADC of master control system detection interface, the output for exporting charging voltage is filled
Piezoelectric voltage port D2；Wherein, the input voltage port B2 is connected with the charging access point of capacitor in the charging circuit.
In the above scheme, described that charge parameter is detected by detection circuit, it specifically includes: detecting in the bleeder circuit
Export voltage value of the charging voltage port D2 when preset detection time section reaches；
Correspondingly, the working condition of the main antenna is determined according to preset determining strategy according to the charge parameter,
It specifically includes: according to voltage value of the output charging voltage port D2 when preset detection time section reaches in the bleeder circuit
VD determines the working condition of the main antenna.
In the above scheme, it is described according in the bleeder circuit export charging voltage port D2 in preset detection time
Voltage value VD when section reaches determines the working condition of the main antenna, specifically includes:
When detecting VD is zero, the main antenna open circuit is determined；
When detecting that VD is much larger than the end voltage when charging circuit charges normal, determine that the main antenna is short
Road；
When the difference of end voltage when detecting that VD and the charging circuit are charged normal is in preset range, determine
The main antenna works normally；Wherein, the open circuit and short-circuit condition of the main antenna indicate the work of the main antenna
Make abnormal state.
The embodiment of the invention provides a kind of antenna controling circuit and methods, pass through the charge parameter on monitoring charging circuit
Whether change procedure is normal come the connection status for determining antenna, carries out emergency antenna when there is connection status of antenna exception
Switching to ensure normal communication state, thus avoid because antenna failure and can not normal communication the case where generation.
Detailed description of the invention
Fig. 1 is a kind of antenna controling circuit schematic diagram provided in an embodiment of the present invention；
Fig. 2 is a kind of specific implementation schematic diagram of charging circuit provided in an embodiment of the present invention；
Fig. 3 is a kind of specific implementation schematic diagram of measure loop provided in an embodiment of the present invention；
Fig. 4 is a kind of charging process schematic diagram of charging circuit provided in an embodiment of the present invention；
Fig. 5 is the schematic diagram of another antenna controling circuit provided in an embodiment of the present invention；
Fig. 6 is the specific implementation schematic diagram of another measure loop provided in an embodiment of the present invention；
Fig. 7 is a kind of method of controlling antenna flow diagram provided in an embodiment of the present invention；
Fig. 8 is another method of controlling antenna flow diagram provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description.
The basic thought of the embodiment of the present invention is: being connected to charging circuit at the antenna connector of main antenna, passes through inspection
It is whether normal come the connection status for determining main antenna to survey the relevant parameter of charging circuit during the charging process.Thought substantially based on this
Think, proposes following embodiment of the invention.
Embodiment one
It is a kind of antenna controling circuit schematic diagram provided in an embodiment of the present invention, which may include day referring to Fig. 1
Linear system system 10；Usual antenna system 10 may include: that main antenna 101, emergency antenna 102, antenna connector 103 and antenna are cut
Change switch 104；
In general, antenna change-over switch 104 can switch between main antenna 101 and emergency antenna 102 and radio circuit
Connection；Antenna connector 103 forms radio-frequency channel by being connected with main antenna 101 or emergency antenna 102.Antenna switching
Switch 104 specifically can be preferably single-pole double-throw switch (SPDT), and the present embodiment is not specifically limited in this embodiment.
Antenna controling circuit 1 provided by the present embodiment further include: charging circuit 20, detection circuit 30 and master control system
40；Wherein,
Main antenna 101 is connected to by charging circuit 20；
Detection circuit 30 includes charge power supply 301, charge power supply switch 302 and measure loop 303；Charge power supply switch
After 302 open, charge power supply 301 charges to charging circuit 20, and measure loop 303 detects charging circuit 20 during the charging process
Charge parameter, for example, the voltage value of detection charging circuit 20 during the charging process；
Master control system 40 is used to open by control charge power supply switch 302 to indicate charge power supply 301 to charging circuit
20 charge；
And obtain charge parameter detected by measure loop 303；
And the working condition of main antenna 101 is determined according to preset determining strategy according to charge parameter；
And when determining the working condition exception of main antenna 101, the antenna change-over switch in antenna system 10 is controlled
The antenna connecting with radio circuit is switched to emergency antenna 102 by main antenna 101 by 104.
It is to be appreciated that master control system 40 can obtain detected by measure loop 303 in preset detection time section
Charge parameter, wherein preset detection time section is usually not more than the time required for 20 charging complete of overcharge circuit.
It should be noted that also needing corresponding guarantor in antenna controling circuit 1 to protect to charging circuit 20
Protection circuit 11 may include direct current barrier protection part and exchange barrier protection two parts；Specifically, capacitive character device can be passed through
Part increases the biggish inductance component of inductance value or resistor to obstruct damage of the direct current signal to antenna system on DC channel
Part is to block the shunting of radiofrequency signal.
Illustratively, charging circuit 20 specifically can be by the biggish capacitive device series inductance of capacitance or resistance simultaneously
For ground connection to realize, concrete implementation circuit is as shown in Figure 2.
It should be noted that the selection rule of capacitance, inductance value and resistance value can be with are as follows: inductance value or resistance value will protect
Card can block the radiofrequency signal shorted to earth of antenna, and not have an impact to the RF impedance in Antenna Operation frequency range, and
And the selection of resistance value will affect the size of charging current and then influence the charging time；The selection of capacitance is needed according to charge and discharge
It is suitable that the length of time is chosen, but can not resonance frequency to antenna or RF impedance have an impact.It is implementing
In the process, it is preferable that capacitance is 0.1 microfarad μ F, and inductance value 68nH, resistance value is 100 kilo-ohms of k Ω, correspondingly, charging electricity
It is 2.62 milliseconds of ms that charging time T is completed on road 20.
Illustratively, master control system 40 can pass through universal input/output (GPIO, General Purpose Input
Output) interface controls antenna change-over switch 104 and charge power supply switch 302 respectively, and can pass through A-D converter
(ADC, Analog-to-Digital Converter) detects interface and obtains charge parameter detected by measure loop 303, also
Interface can be detected to ADC by timer and obtain the progress timing of charge parameter detected by measure loop 303.
During the first concrete implementation, antenna controling circuit 1 as shown in connection with fig. 1, referring to Fig. 3, detection circuit
The concrete form of measure loop 303 can be bleeder circuit in 30, which includes first connect with charge power supply 301
Port E, it is connect to the second port B of 20 input voltage of charging circuit and with the ADC of master control system 40 detection interface, output is filled
The third port D of piezoelectric voltage, resistance value and type of attachment in bleeder circuit can be set according to the actual situation, specifically
The rule of setting are as follows: for main antenna 101 under open-circuit condition, the voltage VB of second port B is significantly larger than main antenna 101 just
The voltage VD of third port D when charging circuit 20 charges under normal working condition, for example, with bleeder circuit shown in Fig. 3, R1
=R2=45k Ω, R3=10k Ω.
Preferably, when measure loop 303 is bleeder circuit shown in Fig. 3, master control system 40 can detecte bleeder circuit
Voltage value of the middle third port D when preset detection time section reaches, and determine according to voltage value the work of main antenna 101
State.It in the present embodiment, is 2.62ms with charge completion time, preset detection time section is illustrated for being 1ms.
By taking the voltage of charge power supply is set to 5V as an example, the charging process schematic diagram of charging circuit shown in Figure 4, figure
In origin to the section between Ts point be charging circuit charging complete section, Shi Changwei 2.62ms, the charging of charging circuit
Curve is as shown, it is possible thereby to learn, in charging complete section, charging curve is incremental, and as shown in figure 4, master control
It is 1ms that system 40, which selectes preset detection time section T0 by timer,.
It should be noted that the voltage value of A point position is as shown in Figure 1 on corresponding charging circuit as T0=1ms
2.5V, B point position voltage as shown in Figure 1 are equal to A point voltage, detection bleeder circuit as shown in Figure 3, wherein R1=R2=
45k Ω, R3=10k Ω, then the detection voltage of D point is V2=1.25V, therefore the ADC detected value for feeding back to control system is
1.25V.The timer in master control system 40 is set as T0=1ms, timer terminates to detect ADC voltage value, detect
Voltage value should be 1.25V.In view of being laid out the factors such as cabling on circuit, it is actual that ADC is set according to this theoretical value
Decision threshold: 1.15V-1.35V.It can be determined that charging circuit can be normal as long as ADC detection voltage is fallen within this range
Charging.ADC detection system can detecte corresponding charging voltage under normal circumstances for antenna connection.When antennal interface is in short circuit
When, charging circuit cannot be normally electrically charged, and the voltage of B point is 0, then the corresponding voltage detected of ADC is also V1=0.When
When antennal interface is in open circuit, same charging voltage can not reach charging circuit, cannot charge normal, at this time the electricity of B point
Pressure is equal to 5V, and by the voltage value VB=4.5V of bleeder circuit, then it is V3=2.25V that ADC, which detects voltage value,.
It is set it is worth noting that, the resistance value of bleeder circuit can be calculated according to the hardware design of oneself, principle is out
VB under line state is significantly larger than ADC sampled value when charging normal, and avoids the occurrence of the erroneous judgement situation of charging voltage.ADC detection
Send instructions under master control system 40 after to result and charge power supply switch 302 is disconnected by GPIO interface, so that charging circuit is put
Electricity, while timer opens record discharge time, discharge time terminates.
By taking charging circuit 20 and measure loop 303 that above-mentioned Fig. 2 and Fig. 3 are respectively shown in as an example: when main antenna is normal, filling
For circuit 20 when preset detection time section 1ms is reached, bleeder circuit third port D voltage VD is 1.25V；Therefore, master control
System 40 can determine the working condition of main antenna 101 by detection third port D voltage VD, specifically: when primary day
When 101 short circuit of line, charging circuit 20 can not be charged normal, therefore, bleeder circuit third port D voltage VD in measure loop 303
It is zero；When main antenna 101 is opened a way, charging voltage can not reach charging circuit, therefore can not charge normal, and detect at this time
End voltage when bleeder circuit third port D voltage VD can be charged normal much larger than charging circuit 20 in circuit 303, in this implementation
In example, it is greater than much larger than the gap between end voltage when indicating that third port D voltage VD and charging circuit 20 are charged normal pre-
If threshold value, by taking Fig. 3 as an example, when main antenna 101 is opened a way, B point end voltage VB is 4.5V, and VD is 2.25V, it will be apparent that big
End voltage 1.25V when charging circuit 20 charges normal.
Therefore, when master control system 40 detects that VD is zero, 101 short circuit of main antenna is determined；When master control system 40 detects
To VD be 2.25V when, determine main antenna 101 open a way；When master control system 40 detects that the difference of VD and 1.25V is in default model
When enclosing interior, determine that main antenna 101 works normally.In the present embodiment, when VD is in 1.15V to 1.35V, determine VD with
The difference of 1.25V is in preset range.When master control system 40 detects 101 short circuit of main antenna or open circuit, antenna is controlled
Switch switch 104 and the antenna connecting with radio circuit is switched into emergency antenna 102 by main antenna 101.
Preferably, when measure loop 303 is bleeder circuit, master control system 40 can be in preset detection time section T
First charging time T1 and the second charging time T2 are set, wherein T > T2 > T1；And bleeder circuit third port D is detected first
The corresponding voltage value V2 of charging time T1 corresponding voltage value V1 and the second charging time T2；And according to the relationship between V1 and V2
Determine the working condition of main antenna 101.In detail, when V2 is greater than V1, master control system 40 determines the normal work of main antenna 101
Make；Otherwise, master control system 40 determines that 101 working condition of main antenna is abnormal.
During another kind specific implementation, separated as shown in figure 5, circuit 303 can be will test with charge power supply 301,
Charge power supply 301 is directly charged to charging circuit 20 by charge power supply switch 302, will test circuit 303 directly with fill
Circuit is connected, and referring to Fig. 6, the concrete form of measure loop 303 can be bleeder circuit, which includes to charging
It the input voltage port B2 of 20 input voltage of circuit and is connect with the ADC of master control system 40 detection interface, exports charging voltage
Export charging voltage port D2；Wherein, input voltage port B2 is connected with the charging access point of capacitor in charging circuit 20.
Correspondingly, when main antenna port is in open circuit, as shown in fig. 6, port A2 and port B2 is disconnected, to input
Voltage port B2 is unable to get charging voltage, therefore the voltage of ADC to output charging voltage port D2 are 0；When antenna port is short
Lu Shi, i.e. port A2 and port B2 are directly shorted, and have skipped the resistance R of detection circuit, and charge power supply 301, which is directly skipped, at this time fills
Resistance R charges to charging capacitor C2, and the charging time shortens because charging resistor becomes smaller, in identical charging
Time T, ADC detect the charging voltage when voltage of output charging voltage port D2 should be worked normally much larger than antenna.
Therefore, when master control system 40 detects that VD is zero, determine that main antenna 101 is opened a way；When master control system 40 detects
When being much larger than end voltage when charging circuit 20 charges normal to VD, 101 short circuit of main antenna is determined；When master control system 40 detects
When the difference of end voltage when charging normal to VD and charging circuit 20 is in preset range, determine that main antenna 101 is normal
Work.In the present embodiment, when VD is in 1.15V to 1.35V, determine that the difference of VD and 1.25V is in preset range.Work as master
When control system 40 detects 101 short circuit of main antenna or open circuit, the day that antenna change-over switch 104 will be connect with radio circuit is controlled
Line switches to emergency antenna 102 by main antenna 101.
It is to be appreciated that antenna system described in the present embodiment can be multiaerial system, it therefore, can be to master control system
The port of system 40 is increased so as to realize while detecting to more antennas.The present embodiment does not repeat them here this.
A kind of antenna controling circuit is present embodiments provided, charging circuit is connected at the antenna connector of main antenna,
It is whether normal come the connection status for determining main antenna by the relevant parameter of detection charging circuit during the charging process, it is realizing
While antenna detection, the electric current for being input to antenna system is also avoided to be assigned to other elements, causes the loss of current power.
Embodiment two
Based on the identical technical concept of previous embodiment, referring to Fig. 7, it illustrates a kind of days provided in an embodiment of the present invention
Line control method, this method can be applied in previous embodiment in any antenna controling circuit, the day line traffic control
Circuit includes antenna system, charging circuit, detection circuit and master control system；Wherein, antenna system may include: main antenna,
Emergency antenna, antenna connector and antenna change-over switch；Main antenna is connected to by charging circuit；Detection circuit includes charging electricity
Source, charge power supply switch and measure loop；After charge power supply switch is opened, charge power supply charges to charging circuit, measure loop
Detect the charge parameter of charging circuit during the charging process；The described method includes:
S701: master control system switches on to indicate that charge power supply is filled to charging circuit by control charge power supply
Electricity；
S702: master control system obtains charge parameter detected by measure loop；
S703: master control system determines the working condition of main antenna according to charge parameter according to preset determining strategy；
S704: when master control system determines the working condition exception of main antenna, master control system is controlled in antenna system
The antenna connecting with radio circuit is switched to emergency antenna by main antenna by antenna change-over switch.
It is to be appreciated that master control system can obtain the ginseng of charging detected by measure loop within a preset time period
Number, and preset detection time section is usually not more than the time required for overcharge circuit charging complete.
Illustratively, charging circuit by the biggish capacitive device series inductance of capacitance or resistance and can specifically connect
Ground is realized.
Illustratively, master control system can pass through universal input/output (GPIO, General Purpose Input
Output) interface control respectively antenna change-over switch and charge power supply switch, and can by A-D converter (ADC,
Analog-to-Digital Converter) charge parameter detected by interface acquisition measure loop is detected, it can also pass through
Timer obtains charge parameter detected by measure loop to ADC detection interface and carries out timing.
Illustratively, the concrete form of measure loop can be bleeder circuit in detection circuit, the bleeder circuit include with
The first port E of charge power supply connection, it is detected to the second port B of charging circuit input voltage and with the ADC of master control system
Interface connection, exports the third port D of charging voltage.
Preferably, master control system obtains charge parameter detected by measure loop in preset detection time section, tool
Body may include:
Master control system detects voltage value VD of the third port D when preset detection time section reaches in bleeder circuit.
Correspondingly, master control system determines the working condition of main antenna according to charge parameter according to preset determining strategy,
It specifically includes:
Master control system is determined according to voltage value VD of the third port D in bleeder circuit when preset detection time section reaches
The working condition of main antenna.
Further, electricity of the master control system according to third port D in bleeder circuit when preset detection time section reaches
Pressure value determines the working condition of main antenna, may include:
When master control system detects that VD is zero, main antenna short circuit is determined；
When end voltage when master control system detects that VD is charged normal much larger than charging circuit, determine that main antenna is opened
Road；
When the difference of end voltage when master control system detects VD and charging circuit charges normal is in preset range,
Determine that main antenna works normally；Wherein, the open circuit and short-circuit condition of main antenna indicate that the working condition of main antenna is different
Often.
Preferably, master control system obtains charge parameter detected by measure loop in preset detection time section, tool
Body may include:
The first charging time T1 and the second charging time T2 is arranged in preset detection time section T in master control system, wherein
T>T2>T1；
Master control system detects bleeder circuit third port D and charges in the corresponding voltage value V1 of the first charging time T1 and second
The corresponding voltage value V2 of time T2；
Correspondingly, master control system determines the working condition of main antenna according to charge parameter according to preset determining strategy,
Specifically include: master control system determines the working condition of main antenna according to the relationship between V1 and V2.
Specifically, master control system determines the working condition of main antenna according to the relationship between V1 and V2, may include:
When V2 is greater than V1, master control system determines that main antenna works normally；Otherwise, master control system determines main antenna
101 working conditions are abnormal.
Illustratively, circuit can be will test to separate with charge power supply, charge power supply by charge power supply switch directly to
Charging circuit charges, and will test circuit and is directly connected with charging circuit, and specifically, the concrete form of measure loop can be with
Bleeder circuit, the bleeder circuit include to charging circuit input voltage input voltage port B2 and with the ADC of master control system
Interface connection is detected, the output charging voltage port D2 of charging voltage is exported；Wherein, in input voltage port B2 and charging circuit
The charging access point of capacitor is connected.
Preferably, master control system obtains charge parameter detected by measure loop in preset detection time section, tool
Body may include:
Master control system detects electricity of the output charging voltage port D2 when preset detection time section reaches in bleeder circuit
Pressure value.
Correspondingly, master control system determines the working condition of main antenna according to charge parameter according to preset determining strategy,
It specifically includes:
Master control system is according to electricity of the output charging voltage port D2 when preset detection time section reaches in bleeder circuit
Pressure value VD determines the working condition of main antenna.
Further, master control system is arrived according to output charging voltage port D2 in bleeder circuit in preset detection time section
Up to when voltage value VD determine the working condition of main antenna, may include:
When master control system detects that VD is zero, determine that main antenna is opened a way；
When end voltage when master control system detects that VD is charged normal much larger than charging circuit, determine that main antenna is short
Road；
When the difference of end voltage when master control system detects VD and charging circuit charges normal is in preset range,
Determine that main antenna works normally；Wherein, the open circuit and short-circuit condition of main antenna indicate that the working condition of main antenna is different
Often.
A kind of method of controlling antenna is present embodiments provided, charging circuit is connected at the antenna connector of main antenna,
It is whether normal come the connection status for determining main antenna by the relevant parameter of detection charging circuit during the charging process, it is realizing
While antenna detection, the electric current for being input to antenna system is also avoided to be assigned to other elements, causes the loss of current power.
Embodiment three
Based on the identical technical concept of previous embodiment, referring to Fig. 8, it illustrates a kind of days provided in an embodiment of the present invention
The method of line traffic control, this method can be applied to the terminal with primary, spare antenna, and this method may include:
S801: the other charging circuit for being connected to main antenna of setting；
S802: it charges to the charging circuit, and charge parameter is detected by detection circuit；
S803: the working condition of the main antenna is determined according to preset determining strategy according to the charge parameter；
S804: when the working condition exception of the main antenna, by the antenna being connect with radio circuit by described primary
Antenna switches to emergency antenna.
Illustratively, the detection circuit is bleeder circuit, and the bleeder circuit includes connecting with the charge power supply
The second port B of first port E, Xiang Suoshu charging circuit input voltage and connect with the ADC of master control system detection interface
It connects, exports the third port D of charging voltage.
Preferably, described that charge parameter is detected by detection circuit, it specifically includes: being detected in preset detection time section
Voltage value VD of the third port D when preset detection time section reaches in the bleeder circuit；
Correspondingly, the work shape for determining the main antenna according to preset determining strategy according to the charge parameter
State specifically includes:
According to voltage value VD determination of the third port D in the bleeder circuit when preset detection time section reaches
The working condition of main antenna.
Specifically, the voltage according to third port D in the bleeder circuit when preset detection time section reaches
Value VD determines the working condition of the main antenna, may include:
When detecting VD is zero, the main antenna short circuit is determined；
When detecting that VD is much larger than the end voltage when charging circuit charges normal, determine that the main antenna is opened
Road；
When the difference of end voltage when detecting that VD and the charging circuit are charged normal is in preset range, determine
The main antenna works normally；Wherein, the open circuit and short-circuit condition of the main antenna indicate the work of the main antenna
Make abnormal state.
Preferably, described that charge parameter is detected by detection circuit, it specifically includes:
The first charging time T1 and the second charging time T2 are set in preset detection time section T, wherein T > T2 > T1；
The master control system detects the bleeder circuit third port D in the corresponding voltage value of the first charging time T1
The V1 and corresponding voltage value V2 of the second charging time T2；
Correspondingly, the work shape for determining the main antenna according to preset determining strategy according to the charge parameter
State specifically includes: when V2 is greater than V1, determining that the main antenna works normally；The shape otherwise, it determines main antenna works
State is abnormal.
Illustratively, the detection circuit is bleeder circuit, and the bleeder circuit includes inputting electricity to the charging circuit
The input voltage port B2 of pressure and connect with the ADC of master control system detection interface, the output charging for exporting charging voltage is electric
Pressure side mouth D2；Wherein, the input voltage port B2 is connected with the charging access point of capacitor in the charging circuit.
Preferably, described that charge parameter is detected by detection circuit, it specifically includes: detecting output in the bleeder circuit and fill
Voltage value of the piezoelectric voltage port D2 when preset detection time section reaches；
Correspondingly, the working condition of the main antenna is determined according to preset determining strategy according to the charge parameter,
It specifically includes: according to voltage value of the output charging voltage port D2 when preset detection time section reaches in the bleeder circuit
VD determines the working condition of the main antenna.
Specifically, described to be reached according to output charging voltage port D2 in the bleeder circuit in preset detection time section
When voltage value VD determine the working condition of the main antenna, specifically include:
When detecting VD is zero, the main antenna open circuit is determined；
When detecting that VD is much larger than the end voltage when charging circuit charges normal, determine that the main antenna is short
Road；
When the difference of end voltage when detecting that VD and the charging circuit are charged normal is in preset range, determine
The main antenna works normally；Wherein, the open circuit and short-circuit condition of the main antenna indicate the work of the main antenna
Make abnormal state.
It should be noted that technical solution in the present embodiment can be by the antenna that is arranged in terminal in previous embodiment
Control circuit realizes that the present embodiment do not repeat them here this.
It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program
Product.Therefore, the shape of hardware embodiment, software implementation or embodiment combining software and hardware aspects can be used in the present invention
Formula.Moreover, the present invention, which can be used, can use storage in the computer that one or more wherein includes computer usable program code
The form for the computer program product implemented on medium (including but not limited to magnetic disk storage and optical memory etc.).
The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.
Claims (22)
1. a kind of antenna controling circuit, which is characterized in that the circuit includes: antenna system, charging circuit, detection circuit and master
Control system；Wherein, the antenna system may include: main antenna, emergency antenna and antenna change-over switch；
The main antenna is connected to by the charging circuit；
The detection circuit includes charge power supply, charge power supply switch and measure loop；
The master control system, for indicating the charge power supply to the charging by controlling the charge power supply switch unlatching
Circuit charges；
And obtain charge parameter detected by the measure loop；
And the working condition of the main antenna is determined according to preset determining strategy according to the charge parameter；
And when determining the working condition exception of the main antenna, control the antenna change-over switch in the antenna system
The antenna connecting with radio circuit is switched into the emergency antenna by the main antenna；
Wherein, the concrete form of measure loop is bleeder circuit in the detection circuit；The bleeder circuit includes filling with described
Power supply connection first port E, Xiang Suoshu charging circuit input voltage second port B and with the master control system
ADC detects interface connection, exports the third port D of charging voltage；Alternatively,
The bleeder circuit include: to the charging circuit input voltage input voltage port B2 and with the master control system
ADC detect interface connection, export charging voltage output charging voltage port D2, the input voltage port B2 and the charging
The charging access point of capacitor is connected in circuit.
2. antenna controling circuit according to claim 1, which is characterized in that the charging circuit especially by capacitance compared with
Big capacitive device series inductance or resistance are simultaneously grounded to realize.
3. antenna controling circuit according to claim 1, which is characterized in that the master control system passes through universal input/defeated
GPIO interface controls the antenna change-over switch and charge power supply switch respectively out, and is examined by A-D converter ADC
It surveys interface and obtains charge parameter detected by the measure loop.
4. antenna controling circuit according to claim 1, which is characterized in that when the bleeder circuit includes and the charging
The second port B and ADC with the master control system of first port E, the Xiang Suoshu charging circuit input voltage of power supply connection
Interface connection is detected, when exporting the third port D of charging voltage, the master control system is specifically used for:
When the voltage VD for detecting the third port D is zero, the main antenna short circuit is determined；
When detecting that VD is much larger than the end voltage when charging circuit charges normal, the main antenna open circuit is determined；
When the difference of end voltage when detecting that VD and the charging circuit are charged normal is in preset range, described in determination
Main antenna works normally.
5. antenna controling circuit according to claim 1, which is characterized in that the master control system is specifically used for: working as detection
To when the main antenna short circuit or open circuit, the antenna change-over switch is controlled by the antenna connecting with radio circuit by the master
The emergency antenna is switched to antenna.
6. antenna controling circuit according to claim 1, which is characterized in that when the bleeder circuit includes and the charging
The second port B and ADC with the master control system of first port E, the Xiang Suoshu charging circuit input voltage of power supply connection
Interface connection is detected, when exporting the third port D of charging voltage, the master control system is specifically used for:
The first charging time T1 and the second charging time T2 are set in preset detection time section T, wherein T > T2 > T1；
And the third port D is detected in the corresponding voltage value V1 of the first charging time T1 and second charging
Between the corresponding voltage value V2 of T2；
And the working condition of main antenna is determined according to the relationship between V1 and V2.
7. antenna controling circuit according to claim 6, which is characterized in that the master control system is used for:
When the V2 is greater than the V1, determine that the main antenna works normally；The shape otherwise, it determines main antenna works
State is abnormal.
8. antenna controling circuit according to claim 1, which is characterized in that when the bleeder circuit includes: to fill to described
The input voltage port B2 of electric circuit input voltage and connect with the ADC of master control system detection interface, output charging voltage
Output charging voltage port D2, the input voltage port B2 is connected with the charging access point of capacitor in the charging circuit
When, the master control system is used for:
When the voltage VD for detecting the output charging voltage port D2 is zero, the main antenna open circuit is determined；
When detecting that VD is much larger than the end voltage when charging circuit charges normal, the main antenna short circuit is determined；
When the difference of end voltage when detecting that VD and the charging circuit are charged normal is in preset range, described in determination
Main antenna works normally.
9. a kind of method of controlling antenna, which is characterized in that the method is applied in antenna controling circuit, the day line traffic control electricity
Road includes antenna system, charging circuit, detection circuit and master control system；Wherein, the antenna system may include: primary day
Line, emergency antenna and antenna change-over switch；The main antenna is connected to by the charging circuit；The detection circuit includes charging
Power supply, charge power supply switch and measure loop；After charge power supply switch is opened, the charge power supply is to the charging circuit
Charging, the measure loop detect the charge parameter of the charging circuit during the charging process；The described method includes:
The master control system switches on to indicate the charge power supply to the charging electricity by the control charge power supply
It charges on road；
The master control system obtains charge parameter detected by the measure loop；
The master control system determines the working condition of the main antenna according to the charge parameter according to preset determining strategy；
When the master control system determines the working condition exception of the main antenna, the master control system controls the aerial system
The antenna connecting with radio circuit is switched to the emergency antenna by the main antenna by the antenna change-over switch in system；
Wherein, the concrete form of measure loop is bleeder circuit in the detection circuit, and the bleeder circuit includes filling with described
Power supply connection first port E, Xiang Suoshu charging circuit input voltage second port B and with the master control system
ADC detects interface connection, exports the third port D of charging voltage；Alternatively,
The bleeder circuit include to the charging circuit input voltage input voltage port B2 and with the master control system
ADC detect interface connection, export charging voltage output charging voltage port D2, the input voltage port B2 and the charging
The charging access point of capacitor is connected in circuit.
10. according to the method described in claim 9, it is characterized in that, the master control system is connect by universal input/output GPIO
Mouth controls antenna change-over switch and charge power supply switch respectively, and detects interface acquisition by A-D converter ADC and detect back
Charge parameter detected by road.
11. according to the method described in claim 9, it is characterized in that, the master control system acquisition measure loop is detected
The charge parameter arrived, can specifically include:
The master control system detects in the bleeder circuit third port D in preset detection in preset detection time section
Between section reach when voltage value VD；
Correspondingly, the master control system determines the work of the main antenna according to the charge parameter according to preset determining strategy
Make state, specifically include:
Voltage value VD of the master control system according to third port D in the bleeder circuit when preset detection time section reaches
Determine the working condition of the main antenna.
12. according to the method for claim 11, which is characterized in that the master control system is according to third in the bleeder circuit
Voltage value of the port D when preset detection time section reaches determines the working condition of the main antenna, may include:
When the master control system detects that VD is zero, the main antenna short circuit is determined；
When the master control system detects that VD is much larger than the end voltage when charging circuit charges normal, determine described primary
Antenna open circuit；
The difference of end voltage when the master control system detects VD and the charging circuit charges normal is in preset range
When interior, determine that the main antenna works normally；Wherein, the open circuit and short-circuit condition of the main antenna indicate described primary
The working condition of antenna is abnormal.
13. according to the method described in claim 9, it is characterized in that, the master control system acquisition measure loop is detected
The charge parameter arrived, can specifically include:
The first charging time T1 and the second charging time T2 is arranged in preset detection time section T in the master control system, wherein
T>T2>T1；
The master control system detect the bleeder circuit third port D in the corresponding voltage value V1 of the first charging time T1 and
The corresponding voltage value V2 of the second charging time T2；
Correspondingly, the master control system determines the work of the main antenna according to the charge parameter according to preset determining strategy
Make state, specifically include: the master control system determines the working condition of the main antenna according to the relationship between V1 and V2.
14. according to the method for claim 13, which is characterized in that the master control system is true according to the relationship between V1 and V2
The working condition of the fixed main antenna may include:
When V2 is greater than V1, the master control system determines that the main antenna works normally；Otherwise, master control system determines the master
With Antenna Operation abnormal state.
15. according to the method described in claim 9, it is characterized in that, the master control system acquisition measure loop is detected
The charge parameter arrived, can specifically include:
The master control system, which detects, exports charging voltage port D2 when preset detection time section reaches in the bleeder circuit
Voltage value；
Correspondingly, the master control system determines the work of the main antenna according to the charge parameter according to preset determining strategy
Make state, specifically include:
The master control system is according to output charging voltage port D2 in the bleeder circuit when preset detection time section reaches
Voltage value VD determine the working condition of the main antenna.
16. according to the method for claim 15, which is characterized in that the master control system is exported according in the bleeder circuit
Voltage value VD of the charging voltage port D2 when preset detection time section reaches determines the working condition of the main antenna, can
To include:
When the master control system detects that VD is zero, the main antenna open circuit is determined；
When the master control system detects that VD is much larger than the end voltage when charging circuit charges normal, determine described primary
Antenna short circuit；
The difference of end voltage when the master control system detects VD and the charging circuit charges normal is in preset range
When interior, determine that the main antenna works normally；Wherein, the open circuit and short-circuit condition of the main antenna indicate described primary
The working condition of antenna is abnormal.
17. a kind of method of controlling antenna, which is characterized in that the described method includes:
The other charging circuit for being connected to main antenna is set；
It charges to the charging circuit, and charge parameter is detected by detection circuit；
The working condition of the main antenna is determined according to preset determining strategy according to the charge parameter；
When the working condition exception of the main antenna, the antenna connecting with radio circuit is switched to by the main antenna
Emergency antenna；
Wherein, the detection circuit be bleeder circuit, the bleeder circuit include the first port E being connect with charge power supply, to
It the second port B of the charging circuit input voltage and is connect with the ADC of master control system detection interface, exports charging voltage
Third port D；Alternatively,
The bleeder circuit includes examining to the input voltage port B2 of the charging circuit input voltage and with the ADC of master control system
Interface connection is surveyed, output charging voltage the port D2, the input voltage port B2 and the charging circuit of charging voltage are exported
The charging access point of middle capacitor is connected.
18. according to the method for claim 17, which is characterized in that it is described that charge parameter is detected by detection circuit, specifically
It include: that third port D is detected in the bleeder circuit in preset detection time section when preset detection time section reaches
Voltage value VD；
Correspondingly, the working condition for determining the main antenna according to preset determining strategy according to the charge parameter,
It specifically includes:
It is determined according to voltage value VD of the third port D in the bleeder circuit when preset detection time section reaches described primary
The working condition of antenna.
19. according to the method for claim 18, which is characterized in that described to be existed according to third port D in the bleeder circuit
Voltage value VD when preset detection time section reaches determines the working condition of the main antenna, specifically includes:
When detecting VD is zero, the main antenna short circuit is determined；
When detecting that VD is much larger than the end voltage when charging circuit charges normal, the main antenna open circuit is determined；
When the difference of end voltage when detecting that VD and the charging circuit are charged normal is in preset range, described in determination
Main antenna works normally；Wherein, the open circuit and short-circuit condition of the main antenna indicate the work shape of the main antenna
State is abnormal.
20. according to the method for claim 17, which is characterized in that it is described that charge parameter is detected by detection circuit, specifically
Include:
The first charging time T1 and the second charging time T2 are set in preset detection time section T, wherein T > T2 > T1；
The master control system detect the bleeder circuit third port D in the corresponding voltage value V1 of the first charging time T1 and
The corresponding voltage value V2 of the second charging time T2；
Correspondingly, the working condition for determining the main antenna according to preset determining strategy according to the charge parameter,
It specifically includes: when V2 is greater than V1, determining that the main antenna works normally；Otherwise, it determines the main antenna working condition
It is abnormal.
21. according to the method for claim 17, which is characterized in that it is described that charge parameter is detected by detection circuit, specifically
It include: voltage value of the output charging voltage port D2 when preset detection time section reaches in the detection bleeder circuit；
Correspondingly, the working condition of the main antenna is determined according to preset determining strategy according to the charge parameter, specifically
It include: true according to voltage value VD of the charging voltage port D2 when preset detection time section reaches is exported in the bleeder circuit
The working condition of the fixed main antenna.
22. according to the method for claim 21, which is characterized in that described to export charging voltage according in the bleeder circuit
Voltage value VD of the port D2 when preset detection time section reaches determines the working condition of the main antenna, specifically includes:
When detecting VD is zero, the main antenna open circuit is determined；
When detecting that VD is much larger than the end voltage when charging circuit charges normal, the main antenna short circuit is determined；
When the difference of end voltage when detecting that VD and the charging circuit are charged normal is in preset range, described in determination
Main antenna works normally；Wherein, the open circuit and short-circuit condition of the main antenna indicate the work shape of the main antenna
State is abnormal.
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| CN201610921258.4A CN107979400B (en) | 2016-10-21 | 2016-10-21 | A kind of antenna controling circuit and method |
| PCT/CN2017/117056 WO2018072764A1 (en) | 2016-10-21 | 2017-12-19 | Antenna control circuit and method |
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| CN109150203B (en) * | 2018-07-13 | 2020-10-30 | 合肥移瑞通信技术有限公司 | Antenna switching circuit and antenna system |
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| CN103384962A (en) * | 2012-03-05 | 2013-11-06 | 华为终端有限公司 | Antenna switch circuit and wireless terminal device |
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|---|---|
| WO2018072764A1 (en) | 2018-04-26 |
| CN107979400A (en) | 2018-05-01 |
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