CN105846852A - Radio frequency device and adjusting method - Google Patents
Radio frequency device and adjusting method Download PDFInfo
- Publication number
- CN105846852A CN105846852A CN201510020141.4A CN201510020141A CN105846852A CN 105846852 A CN105846852 A CN 105846852A CN 201510020141 A CN201510020141 A CN 201510020141A CN 105846852 A CN105846852 A CN 105846852A
- Authority
- CN
- China
- Prior art keywords
- radio
- unit
- signal
- circuit
- radio frequency
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Testing Electric Properties And Detecting Electric Faults (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
Abstract
The invention discloses a radio frequency device and an adjusting method. The radio frequency device comprises a radio frequency circuit and a detection circuit. The radio frequency circuit comprises a radio frequency circuit connector which is used for mounting a radio frequency element, thus transmitting or receiving radio frequency signals, and a power supply module which decides whether to supply power to the radio frequency circuit connector or not according to control signals. The detection circuit comprises a signal output end, a first filtering unit and a detection result providing unit. The signal output end receives and provides detection signals. The first filtering unit is equipped with a first external connection end which is electrically coupled to the signal output end for receiving the detection signals, and a second external connection end which is electrically coupled to the radio frequency circuit. The detection result providing unit decides the contents of the control signals according to the potential change conditions of the external input end. According to the radio frequency device, the electric load property of the radio frequency circuit is detected by using the detection circuit; the current situation of the radio frequency circuit is obtained according to the electric load property; and whether to supply power to the active radio frequency element in the radio frequency circuit or not is controlled according to the current situation of the radio frequency circuit.
Description
Technical field
The present invention relates to the automatic adjustment technologies field of radio circuit, particularly relate to a kind of radio-frequency unit and
Control method.
Background technology
Existing radio frequency transmission/reception element generally can be divided into two big classes, and one type is to need power supply to drive
The active radio frequency element of dynamic internal amplifier, another kind of, it is the passive radio frequency element that need not power supply.
As a example by antenna, passive type antenna can only be yielded to the degree of strength of the radio-frequency signal source in environment and operate,
But active antenna passes through the low-noise amplifier in the behind of antenna plus 1～2 grade, can be by institute
The faint radiofrequency signal (such as gps signal) received is amplified, and efficiently avoid the signal owing to receiving
Intensity is not enough and causes follow-up receiving sensitivity (such as locating effect) to be affected, and causes reception characteristic to become
Difference.Therefore, active antenna can be useful in faint radio frequency receiving signal ring widely than passive type antenna
Border.
But, owing to amplifier needs certain voltage to promote, so an it is necessary to have power supply system
System provides power on active antenna, and active antenna just can be made normally to work.In current installation
Cheng Zhong, typically first can move to active antenna the position needed, be received by active antenna
On radio circuit, the most just can power-on set up radio communication link.
But, if just provide power to active antenna when active antenna does not also have mounted,
It is likely to result in electric power system to damage because of short circuit, or makes the low-noise amplifier in active antenna burn
Ruin.Therefore, active antenna is installed when, it is necessary to formula antenna of can having the initiative in hands accurately
Installment state, is otherwise likely to loss burst occur.
Summary of the invention
It is within the contemplation of the invention that above-mentioned problem can be solved, can reach automatically to monitor by offer radio-frequency unit and penetrate
Keep pouring in the present situation sending/receive element, and decide whether accordingly to provide electrical power to radio frequency transmission/reception element.
The present invention also is intended to detect radio frequency transmission/reception easily by providing radio-frequency unit control method
Element is the most properly installed, and according to the effect of testing result regulation supply electric power.
One embodiment of the invention provides a kind of radio-frequency unit, including radio circuit and testing circuit.Penetrate
Frequency circuit includes radio circuit adapter and power supply module, and radio circuit adapter therein is used for
Installing radio-frequency (RF) component and with transmission or receive radiofrequency signal, power supply module is then determined according to control signal
Determine whether provide electrical power to radio circuit adapter.Testing circuit includes that signal output part, the first filtering are single
Unit and testing result provide unit.Wherein, signal output part receives and provides detection signal；First filter
Ripple unit has the first external connection terminal and the second external connection terminal and transmits in radio circuit for filtering
Radiofrequency signal, the first external connection terminal be electrically coupled to signal output part with receive detection signal, second
External connection terminal is electrically coupled to radio circuit；Testing result provides unit to have external input terminals, described
External input terminals is electrically coupled to the first external connection terminal, and testing result provides unit to input according to outside
End potential change situation and determine the content of aforementioned control signals.
In a particular embodiment, aforesaid testing circuit also includes second filter unit, described
Second filter unit has the 3rd external connection terminal and the 4th external connection terminal, and the 3rd external connection terminal is electrical
Being couple to signal output part, the 4th external connection terminal is electrically coupled to the first external connection terminal.
In a particular embodiment, aforesaid testing result provide unit include a rectification unit and
One DC detecting unit.Rectification unit is electrically coupled to external input terminals, and the electricity to external input terminals
Position carries out rectifying operation and exports the rectified signal of correspondence；DC detecting unit is electrically coupled to rectification unit
To receive rectified signal, and determine that according to rectified signal testing result provides the control signal that unit provides
Content.
Further, aforesaid DC detecting unit can include a bleeder circuit, multiple comparator with
And an encoder.Wherein, bleeder circuit has a running voltage input and the output of multiple dividing potential drop
End, each dividing potential drop outfan provides the current potential different from other dividing potential drop outfans；Each compares utensil
There is one to compare input, a reference input and one and compare outfan, the ginseng of each comparator
Examine input and be electrically coupled to a dividing potential drop outfan of correspondence, compare input and receive rectified signal, and
Relatively outfan then exports produced comparative result after relatively；Encoder is then according to each comparator institute
The comparative result of output and determine that testing result provides the content of control signal that unit provides.
In a particular embodiment, radio-frequency unit also includes detecting signal generation unit, produces described inspection
Survey signal and provide to described signal output part.
In a particular embodiment, radio-frequency unit also includes: detect signal element gently, holds electrical coupling
It is connected to described signal output part and receives described detection signal, and be electrically coupled to described first filter unit
Described first external connection terminal.
Another embodiment of the present invention provides the control method of a kind of aforementioned radio-frequency unit, including: compare
Relatively operate, compare testing result provide unit external input terminals current potential and preset potential group at least
The content of one current potential, obtains comparing the result of operation；And according to comparing the result of operation, determine to control
The content of signal.
In a particular embodiment, according to the described result comparing operation, described control signal is determined
Content, including:
By the described result of operation that compares compared with default consequential signal, and in described default consequential signal
Rong Wei: when detection normally couples the described radio circuit of described radio-frequency (RF) component, described testing circuit is carried out
Described compare operation after obtained by the described result comparing operation.
In a particular embodiment, according to the described result comparing operation, described control signal is determined
Content, also includes:
When described testing circuit carry out described compare operation after obtained by the described result comparing operation and institute
State the content of default consequential signal identical time, making described control signal control described power supply module provides
Electric power is to described radio-frequency (RF) component.
Embodiments of the invention are because using filter unit isolation radio circuit and testing circuit, so can examine
The frequency of the detection signal run in slowdown monitoring circuit will not the high journey to the radiofrequency signal that can affect radio circuit
Degree, this makes the testing circuit of radio circuit can carry out with the running of radio circuit simultaneously.And utilize radio frequency
The impedance variation of circuit because detection signal frequency affects produced by integrated circuit impedance, would not be limited
In the type of the radio-frequency (RF) component accessed, and can judge whether whole radio circuit occurs easily
Abnormal open circuit or short circuit phenomenon, reduce the difficulty of detection.And, by detecting overall electricity at any time
The electric state on road, can reduce because installation is improper greatly to active radio frequency element and power supply system
System causes the probability of damage.
Accompanying drawing explanation
Fig. 1 is the circuit block diagram of the radio-frequency unit according to one embodiment of the invention.
Fig. 2 is the circuit block diagram of the testing circuit according to another embodiment of the present invention.
Fig. 3 is the circuit diagram of the testing circuit according to one embodiment of the invention.
Fig. 4 is the circuit diagram of the testing circuit according to another embodiment of the present invention.
Fig. 5 is the implementing procedure figure of the control method according to one embodiment of the invention.
Description of reference numerals:
10: radio-frequency unit
35,45,150,250: testing circuit
100: radio circuit
100a, 154a: connection end point
102: power supply module
104: radio circuit adapter
106: radio-frequency (RF) component
152: detection signal generation unit
152a, 352a: signal output part
154: detect signal element gently
156,356: the first filter unit
156a, 156b, 257a, 257b, 356a, 356b, 357a, 357b: external connection terminal
158,358: testing result provides unit
158a, 358a: external input terminals
257,357: the second filter unit
380: rectification unit
382: DC detecting unit
384: bleeder circuit
384a～384d: dividing potential drop outfan
386a～386d: comparator
388: encoder
A '～d ': reference input
A "～d ": compare input
C1～C4: electric capacity
CTL: control signal
D1: diode
E1～e4: compare outfan
L1～L3: inductance
R1～R4: resistance
RS: radiofrequency signal
The administration step of S500～S518: one embodiment of the invention
TP: test point
Ts: detection signal
Ws: rectified signal
Detailed description of the invention
Refer to Fig. 1, it is the circuit block diagram of the radio-frequency unit according to one embodiment of the invention.In this reality
Executing in example, radio-frequency unit 10 includes a radio circuit 100 and for detecting radio circuit 100
Testing circuit 150.Radio circuit 100 may be employed to send or receive the circuit of radiofrequency signal, including
One in order to provide the power supply module 102 of electric power and a radio circuit adapter 104.Detection electricity
Road 150 then includes detecting signal generation unit 152, mild detection signal element the 154, first filter unit
156 and testing result provide unit 158.
Wherein, radio circuit 100 receives radiofrequency signal RS to be sent out from connection end point 100a,
Or transmit radiofrequency signal RS from connection end point 100a other elements to being coupled in circuit.Radio frequency electrical
Radiofrequency signal RS that road 100 is to be sent is via the radio frequency unit accessed in radio circuit adapter 104
Part 106, wirelessly transmits outside radio-frequency unit 10；And, radio-frequency (RF) component 106 fills from radio frequency
Put radiofrequency signal received outside 10, can be provided to by radio circuit adapter 104 connect
End points 100a.Power supply module 102 decides whether to provide electric power according to the control of control signal CTL
To radio circuit adapter 104, radio circuit adapter 104 then as the intermediary of electric power, is connecing
The when that the radio-frequency (RF) component 106 entered being active radio frequency element, will be received from power supply module 102
The electric power arrived, is delivered to access the radio-frequency (RF) component 106 in radio circuit adapter 104, for radio frequency unit
Use when part 106 operates.
Aforesaid control signal CTL is to be carried out the electrical characteristic of radio circuit 100 by testing circuit 150
After detection, the mode of produced concrete generation will describe the most in detail.By control signal CTL
Controlling, power supply module 102 can provide power to active radio frequency element 106 in due course,
Efficiently avoid because install improper, and to active radio frequency element 106 and include power supply supply mould
Block 102, in interior electric power system, causes the probability of damage.
Will be detailed below circuit framework and the operating mechanism of testing circuit 150.Continue referring to Fig. 1,
Detection signal generation unit 152 has signal output part 152a, and can provide inspection from signal output part 152a
Survey signal Ts.Mild detection signal element 154 has a connection end point 154a to be electrically coupled to detect signal product
Raw unit 152 is to receive detection signal Ts.First filter unit 156 has external connection terminal 156a and (claims afterwards
First external connection terminal) and external connection terminal 156b (rear title the second external connection terminal).Wherein, first is outside
Connect end 156a and detect the connection end point 154a of signal element 154 and signal gently in order to being electrically coupled to
Outfan 152a, and therefore receive detection signal Ts；Second external connection terminal 156b is electrically coupled to
Test point TP pre-set in radio circuit 100.It is outside defeated that testing result provides unit 158 to have
Entering and hold 158a, described external input terminals 158a is electrically coupled to detect gently the connection end of signal element 154
Point 154a, signal output part 152a and external connection terminal 156a, and testing result offer unit 158
Current potential according to external input terminals 158a and the content of provided control signal CTL is provided.
As it can be seen, during in order to detect running in radio circuit 100 electricity of actual transfer radiofrequency signal RS
Road electrical characteristic, the second above-mentioned external connection terminal 156b is that electric property coupling is at radio circuit adapter 104
And in test point TP between connection end point 100a.So, it is possible to check that connection end point 100a is to penetrating
Circuit and the circuit of radio circuit adapter 104 itself between frequency circuit adapter 104 are the most normal；
Even, further, when active radio frequency element 106 be linked into radio circuit adapter 104 it
The when of middle, it is also possible to the electrical characteristic of the active radio frequency element 106 accessed is examined the most in the lump
Survey.In other words, detection when, penetrate except judging radio circuit adapter 104 whether accesses
Frequently outside the work of element and radio-frequency (RF) component is the most normal, it is also possible to judge whether radio-frequency (RF) component belongs to
In provisioned active radio frequency element.
Aforesaid detection signal generation unit 152 should have preferably low output impedance voltage source or high output
Resistive source characteristic, and the detection signal Ts provided can be digital signal, and can have not only one
The signal content planted.For example, the content of detection signal Ts can be that continuous print logic high potential is (suitable
In fixing DC voltage), the most each bit value be 1 digital signal (1,1,1,1 ...)；Or
Can be continuous print logic low potential (being equivalent to fixing DC earthing), the most each bit value be 0
Digital signal (0,0,0,0 ...)；Also or can be continuous print logic high potential with logic low potential sequentially
Combination (in being equivalent to, low frequency signal), be namely the continuous digital signal of 1,0 (1,0,1,0 ...).Before
The various digital signals stated can also be arranged in pairs or groups the different working cycle and be produced various different detection signal.
Furthermore, digital detection signal can also have multiple waveforms, such as square wave, triangular wave or string ripple etc..
Furthermore, aforesaid first filter unit 156 has high frequency high impedance and the low-impedance characteristic of medium and low frequency.
High frequency herein refer to a range of frequency band near the frequency of radiofrequency signal RS (about 300MH with
Upper frequency band, claims high frequency band afterwards), what medium and low frequency frequency band referred to is then less than the use frequency band of aforementioned high frequency
Less than 0.25 times, particularly detection signal generation unit 152 produced detection signal Ts and near
Frequency band (claiming low-frequency band afterwards).Consequently, it is possible to radio circuit 100 operates when, be delivered in
Radiofrequency signal RS in radio circuit 100 will be because of the obstruct of the first filter unit 156 without affecting
Running to testing circuit 150；Relative, owing to the first filter unit 156 will not stop detection signal
Ts, thus for detection signal Ts for, radio circuit 100 also be detection signal Ts bang path it
One, therefore the impedance variation of radio circuit 100 will influence whether the change of each point current potential in testing circuit 150
Change, particularly, the change of the current potential that testing result offer unit 158 is received from external input terminals 158a.
Mild detection signal element 154 is used with filtering as transient energy storage at this, so that through mild inspection
Survey the waveform obtained by after signal element 154, it is possible to the waveform than detection signal Ts originally more towards
In mild signal waveform.Actually when design, can be individually present and can also be incorporated into testing circuit
Among the filter unit of 150.Relevant design variation side be will be further illustrated in following several embodiments
Formula.
Refer to Fig. 2, it is the circuit block diagram of the testing circuit according to another embodiment of the present invention.With
The testing circuit 150 of Fig. 1 compares, one the second filter unit 257 of the testing circuit more than 250 of Fig. 2.
Second filter unit 257 electric property coupling the first filter unit 156 and detection signal generation unit 152 it
Between, its external connection terminal 257a (rear title the 3rd external connection terminal) is electrically coupled to detect signal generation unit
152 are then electrically coupled to the first filter unit 156 to receive detection signal Ts, external connection terminal 257b
External connection terminal 156a and testing result provide the external input terminals 158a of unit 158.Second filtering is single
Unit 257 can provide more preferably high frequency isolation effect to detection signal generation unit 152, it is to avoid at Gao Gong
The radio circuit 100 of rate carries out the fortune of the radiofrequency signal RS impact detection signal generation unit 152 transmitted
Make.Second filter unit 257 can by aforesaid high frequency band possess a certain degree of impedance effect with
Reach this purpose；Under preferably situation, the second filter unit 257 can provide at aforesaid high frequency band
The impedance effect same or higher with the first filter unit 156.From another perspective, the first filtering
Both unit 156 and the second filter unit 257 can be all low pass filter or band filter；Also may be used
Be one of which as low pass filter, another one is then band filter.As long as can realize original
Purpose of design, the wave filter of any type can't be necessary restriction.
In addition to above-mentioned difference, the circuit connecting relation of testing circuit 250 and operation principles all with Fig. 1
Much more no longer shown testing circuit 150 is similar, to explain at this.Although further it is to be noted that
Above-described embodiment all provides in testing circuit a detection signal generation unit, but this is to say
The bright special case allowing testing circuit energy independent work be done.In other words, might not need in testing circuit
Comprise detection signal generation unit, even can not comprise detection signal in whole radio-frequency unit and produce
Raw unit, but be accomplished by thus an outside additionally mounted corresponding detection signal generation unit with
Detection signal needed for detection is provided.
Next refer to Fig. 3, it is the circuit diagram of the testing circuit according to embodiments of the invention.At this
In embodiment, testing circuit 35 mainly include signal output part 352a, the first filter unit 356,
Two filter units 357 and testing result provide unit 358.It will be apparent that the most do not deposit
At an independent detection signal generation unit, so signal output part 352a must be electrically coupled to one
Outside detection signal generation unit (not illustrating), the detection signal generation unit from outside receive detection signal
Ts, and received detection signal Ts is provided to testing circuit 35.
In the present embodiment, the first filter unit 356 includes inductance L1 and electric capacity C1.Inductance L1's
One end is electrically coupled to the external connection terminal 356b of the first filter unit 356 and aforesaid radio circuit (not
Illustrate) in test point TP, the other end of inductance L1 (is equivalent to the external connection of the first filter unit 356
End 356a), one end of electric capacity C1, the external connection terminal 357b of the second filter unit 357 and detection knot
Fruit provides the mutual electric property coupling of external input terminals 358a of unit 358, and the other end of electric capacity C1 is the most electrical
It is coupled to ground.Second filter unit 357 includes inductance L2 and electric capacity C2.One end (phase of inductance L2
When in the external connection terminal 357a of the second filter unit 357) be electrically coupled to signal output part 352a and
One end of electric capacity C2, the other end of inductance L2 (is equivalent to the external connection terminal of the second filter unit 357
357b) it is electrically coupled to testing result and external input terminals 358a and first filter unit of unit 358 are provided
The external connection terminal 356a of 356, the other end of electric capacity C2 then ground connection.
Herein, electric capacity C1 and electric capacity C2 serves as mild detection signal element 154 as shown in Figure 1 jointly
Role.In other words, electric capacity C1 and electric capacity C2 together provides the effect of transient energy storage and filtering,
As adjusting Dc bias (DC bias) signal that rear class testing result provides required in unit 358.Another
Plant possible change shape the most as shown in Figure 4.Please also refer to Fig. 4, it is that another is implemented according to the present invention
The circuit diagram of the testing circuit of example.Comparison diagram 3 and Fig. 4, the testing circuit 45 shown in Fig. 4 is than detection electricity
An electric capacity C4 has been added on road 35.In the embodiment shown in fig. 4, electric capacity C4 serves as shown in Figure 1
The mild role detecting signal element 154.In other words, electric capacity C4 provides the effect of transient energy storage,
The basic DC voltage (the most aforesaid Dc bias) in unit 358 is provided as rear class testing result
Signal.Certainly, electric capacity C1 and electric capacity C2 also provides the effect of transient energy storage and filtering, but by adjusting
The capacitance of dynamic self-existent electric capacity C4, can change rear class on the premise of not changing filter effect
The size of DC bias signal in circuit.
Go back to Fig. 3.As it can be seen, testing result in the present embodiment provide unit 358 include one whole
Stream unit 380 and a DC detecting unit 382.Rectification unit 380 is electrically coupled to external input terminals
358a, and the current potential of external input terminals 358a is carried out rectifying operation and rectified signal corresponding to direct current output
Ws；DC detecting unit 382 is electrically coupled to rectification unit 380 to receive rectified signal Ws, and
DC detecting unit 382 can determine according to rectified signal Ws that testing result provides unit 358 to carry
The content of control signal CTL of confession.
In the embodiment shown in fig. 3, rectification unit 380 includes diode D1, inductance L3 and electricity
Hold C3.The anode of diode D1 is electrically coupled to external input terminals 358a, and negative electrode is then with inductance L3's
One end electric property coupling；The other end of inductance L3 and one end electric property coupling of electric capacity C3, and electric capacity C3
The other end then ground connection.DC detecting unit 382 includes bleeder circuit 384, multiple comparator 386a～386d
And encoder 388.It should be noted, although it is whole for the most all using half-wave rectifier
Stream unit, but this those skilled in the art is when knowing, other kinds of commutator, such as full wave rectifier or bridge-type
Commutators etc., can be used to replace the half-wave rectifier of this embodiment herein.
Bleeder circuit 384 has a first running voltage input Vref and multiple dividing potential drop outfan
384a～384d, and each dividing potential drop outfan 384a～384d provide and other dividing potential drop outfans respectively
Different current potentials.Current potential one preset potential group of composition that these dividing potential drops outfan 384a～384d is exported.
In order to realize such effect, bleeder circuit 384 in the present embodiment employs multiple resistance R1～R4,
And make these resistance R1～R4 be connected between the first running voltage input Vref and earthing potential, and
The current potential at electric property coupling between each two resistance be just separately provided to dividing potential drop outfan 384a～
384d。
Comparator 386a～386d each have a reference input a '～d ', one compare input a "
～d ", and one compared outfan e1～e4.In more detail, the reference input of comparator 386a
A ' is electrically coupled to the dividing potential drop outfan 384a of correspondence, compares input a " then receive rectified signal Ws, and
The comparator 386a comparative result to the current potential of dividing potential drop outfan 384a with the current potential of rectified signal Ws, then
There is provided to encoder 388 from comparing outfan e1.It is similar to, the reference input b ' of comparator 386b
It is electrically coupled to the dividing potential drop outfan 384b of correspondence, compares input b " then receive rectified signal Ws, and
Comparator 386b to the comparative result of the current potential of dividing potential drop outfan 384b and the current potential of rectified signal Ws then from
Relatively outfan e2 provides to encoder 388；It is right that the reference input c ' of comparator 386c is electrically coupled to
The dividing potential drop outfan 384c answered, compares input c " then receive rectified signal Ws, and comparator 386c pair
The current potential of dividing potential drop outfan 384c with the comparative result of the current potential of rectified signal Ws then from comparing outfan e3
There is provided to encoder 388；The reference input d ' of comparator 386d is electrically coupled to the dividing potential drop output of correspondence
End 384d, compares input d " then receive rectified signal Ws, and comparator 386d is to dividing potential drop outfan 384d
The comparative result of current potential and the current potential of rectified signal Ws then provide to encoder from comparing outfan e4
388。
When inside plants carries out testing electrical property first, by adjusting the setting value of comparator 386a～386d
(namely adjusting the part or all of ratio between each resistance R1～R4), encoder 388 just can basis
The setting value of comparator 386a～386d and the rectified signal Ws received obtain wanted comparative result,
And the content of control signal CTL is determined according to obtained comparative result.In other words, in factory
Portion carry out first testing electrical property time, can by adjusting and record the setting value of comparator 386a～386d,
Control signal CTL is made to meet the various situations of radio circuit 100.Or, having other can for reference
Under the situation of the predetermined set value of comparator 386a～386d, available comparator 386a's～386d is pre-
Based on determining setting value, measure because of the various different situations of radio circuit 100 in encoder 388 institute
The comparative result not produced, determines the content of control signal CTL the most again；This mode is applicable to
Situation after doing close test and obtaining accurate test result, batch testing when producing the most in a large number,
Or product sell to user on hand after the situation such as the maintainability test that carried out.
In addition, along with the radio circuit tested is different, the working cycle of detection signal Ts can also
With adjustment.By using specific detection signal Ts, so that radio circuit is normal and abnormal
Time the rectified signal Ws (comprising aforesaid Dc bias) that respectively obtained of impedance, it is sufficient to change and control letter
The content of number CTL.Thus, it is possible to judge examined according to the content of control signal CTL
Whether the impedance of radio circuit is under designed normal condition.
For example, it may be considered that following several situations adjust a suitable detection signal Ts:
Situation 1: make the test condition be: radio circuit for normal, access normal active radio frequency element
And when electric power is provided, with fixed detection signal TSThe test being made radio circuit can make the ratio of comparator
Relatively result, obtains a specific arrangement mode (rear title first order mode) according to order arrangement.Such as:
By the comparative result of generation corresponding to each comparator according to Fig. 3 comparator 386a, 386b, 386c to 386d
The order that arranges from top to bottom arranges, and after the arrangement of these comparative results, the content of gained becomes the
One arrangement mode.
Situation 2: make the test condition be: radio circuit for normal, access normal active radio frequency element
And when not providing electric power, with fixed detection signal TSThe test being made radio circuit can make comparator
Comparative result, obtains another specific arrangement mode (claim afterwards according to the order arrangement identical with situation 1
Second order mode).Further, situation 2 can comprise following several situation:
Situation 2-1: make the test condition be: access active radio frequency element at radio circuit, electric power is not provided
And radio circuit is when being normal condition, with fixed detection signal TSThe test being made radio circuit can make
The comparative result of comparator, obtains another specifically arrange according to the order arrangement identical with situation 1
Mode (rear title the first sub-arrangement mode)；Situation 2-2: make the test condition be: access actively at radio circuit
Formula radio-frequency (RF) component, when not providing electric power and radio circuit that short-circuit condition occurs, with fixed detection signal TS
The test being made radio circuit can make the comparative result of comparator, according to the order row identical with situation 1
Arrange and obtain another specific arrangement mode (rear title the second sub-arrangement mode)；And situation 2-3: order is surveyed
Strip part is: accesses active radio frequency element at radio circuit, does not provide electric power and radio circuit to occur out
During line state, with fixed detection signal TSThe test being made radio circuit can make the comparison of comparator tie
Really, another specific arrangement mode (rear title the 3rd is obtained according to the order arrangement identical with situation 1
Arrangement mode).
Situation 3: make the test condition be: at radio circuit for normal and access normal passive radio frequency element
Time, with fixed detection signal TSThe test being made radio circuit can make the comparative result of comparator, depends on
Another specific arrangement mode (rear title the 3rd arrangement side is obtained according to the order arrangement identical with situation 1,2
Formula).
Situation 4: make the test condition be: at radio circuit for normally and when not accessing circumscribed radio-frequency (RF) component,
With fixed detection signal TSThe test that radio circuit is done, can make the comparative result of comparator according to
The order arrangement that previous each situation is identical, then obtain another specific arrangement mode (rear title the 4th arrangement side
Formula).Also, owing to when not accessing circumscribed radio-frequency (RF) component, radio circuit originally will present open-circuit condition,
So from another perspective, the test condition of situation 4 can be whether detection radio circuit is open circuit.
In order to make the test to several situations aforementioned can make the comparative result that comparator is exported, produce and wished
Hope the particular arrangement mode (such as 0001 or 0101 etc.) obtained, particularly except detection signal can be adjusted
Outside the content of Ts, it is also possible to utilize Dc bias or the resistance R1 that testing result offer unit is provided
～the ratio (it is to say, it is variable resistance that R1～R4 can have some or all of) of R4 realizes.One
Denier adjusts a specific condition so that under aforesaid three kinds of situations, comparator can be allowed to produce respectively
Different first is to the 6th arrangement mode, then the specified conditions adjusted just can be used as reality
Condition setting during test.By by actually comparative result obtained by comparator respectively with aforesaid
First to the 6th arrangement mode compares, it is possible to know whether detected radio circuit corresponds with
The above-mentioned condition described by situation 1 to 4 (also can comprise situation 2-1 to 2-3).
Certainly, it is possible not only to judge that radio circuit is in any situation by the way of above-mentioned, and
Can also judge that the electrical connection of radio circuit entirety is the most normal.If interpretation goes out the electric of radio circuit
Connect also the most abnormal, or and be not connected with active radio-frequency (RF) component, then except utilizing control signal
CTL controls aforesaid power supply module, not outside supply electric power, it is also possible to further with control
Signal CTL goes to warn, even such as drive warning lamp, caution sound to send other information warnings.
Next refer to Fig. 5, it is the implementing procedure figure of the detection method according to one embodiment of the invention.
Please with reference to Fig. 1 and Fig. 3, following description will coordinate Fig. 1 Yu Fig. 3 so that understanding.
First, in step S500, first obtain the content of default consequential signal.If being to test first, can
With result that theoretic electrical characteristic is caused as the content of default consequential signal；Or, permissible
Result obtained after utilizing reality test, the most aforesaid first to the 6th arrangement mode, as herein
The content of default consequential signal.Described default consequential signal can be stored in any position of radio-frequency unit 10
Put, such as, be stored in testing circuit 150, or further, be stored in detection signal and produce single
Unit 152 or testing result provide within unit 158, taking during to facilitate follow-up comparing.
After obtaining the content presetting consequential signal, it is possible to start to provide detection signal (step S502)
And carry out the operation (step S504) that signal compares.In the present embodiment, status 4 institute is first passed through
Whether the 4th arrangement mode provided, be open circuit judges whether access on radio circuit according to radio circuit
The most whether load, access circumscribed radio-frequency (RF) component, and accesses in radio circuit in judging
During the radio-frequency (RF) component of circumscribed, flow process is made to enter step S508；Flow process is the most just made to return to step S502
Again to detect.In the modus operandi that other are possible, outside having accessed in judging radio circuit
When connecing the radio-frequency (RF) component of formula, it is also possible to be further sent out signal and detect in radio circuit with prompting
The radio-frequency (RF) component of circumscribed.
In step S508, by judging whether radio circuit meets aforesaid situation 3, and can learn
Access whether the circumscribed radio-frequency (RF) component in radio circuit is passive radio frequency element.If being judged as YES,
Then represent that the circumscribed radio-frequency (RF) component accessed is passive radio frequency element, need not supply electric power, therefore flow
Journey returns to step S502 to carry out the test of next round；If being judged as NO, then it represents that is accessed is external
Formula radio-frequency (RF) component is not passive radio frequency element, the most then make flow process enter step S510 to do further
Judge.
In step S510, can clearly learn connect by judging radio circuit whether to meet situation 2
Whether the load entered meets " is accessed the condition of normal active radio frequency element.If in step S510
Judge that existing electrical characteristic meets really and properly access the condition of active radio frequency element (it is, accord with
Conjunction situation 2-1), then make flow process enter step S512 to start the load supply electric power accessed.Starting
Supply power to radio circuit adapter, to be supplied power to further by radio circuit adapter
After active radio frequency element, flow process enters step S514 and compares to carry out further signal.Now
The active radio frequency element 106 (being equivalent to the load of radio circuit 100) that to be judged is then accessed is
No normally, the mode judged then can have first order mode by comparing obtained by status 1
Comparator output result carry out with result obtained by comparator 386a～386d instantly.In step
In S514, if judging, load is abnormal, means that accessed active radio frequency element 106 goes out
Showed problem, then flow process is put into step S516 to stop supply of electric power at once, and can be to being accessed
Active radio frequency element 106 carries out adjustment or the replacing of necessity.Adjusting or changing active radio frequency element
After 106, flow process will come back to step S502 to carry out the test of next round.Relative, if in step
Judge that load is normal in rapid S514, then flow process repeats step S514 to carry out the detection of persistence.
Look back, when the judged result of step S510 is no (it is, meet situation 2-2 or
2-3), represent the load not passive radio frequency element that accessed, be not that properly accessed active is penetrated
Frequently element, then flow process enters step S518 and sends alert news so that the external world learns is installing penetrating of circumscribed
Frequently go wrong during element.In another embodiment, it is also possible to the judged result in step S510 is no
Time, not only enter step S518 and send alert news, still further make flow process return to step S502 to enter
The detection of row next round.
Aforesaid flow process is an example, and the order of many of which step can be depending on being wanted to reach
Purpose and make variation.For example, after step S516 stops supply of electric power, it is also possible to send police
News notify that staff, to adjust load, and starts to supply electric power (step S512) after adjusting load again
And carry out the test of next round.In another example, before step S512 starts to supply electric power, also
Alarm signal can be sent will start to supply electric power to inform.
Therefore, the flow embodiment shown in Fig. 5 is not limited to the technology contents of the present invention, and it is only
In order to illustrate that the one of which of technology provided by the present invention operates probability, therefore to allow the skill in this field
Art personnel can understand the technological thought of the present invention more easily.
By above-mentioned circuit and control method, the detection of radio circuit can be carried out with running simultaneously.And it is sharp
Affect produced by integrated circuit impedance, the most not because of the impedance variation of detection signal frequency with radio circuit
Can be limited to the type of accessed radio-frequency (RF) component, and can judge easily whole radio circuit is
The abnormal open circuit of no appearance or short circuit phenomenon, reduce the difficulty of detection.And, by detecting at any time
The electric state of integrated circuit, can be effectively reduced because install improper and to active radio frequency element with
Electric power system causes the probability of damage.
According to above-mentioned explanation, embodiments of the invention at least can bring following technical advantage:
1. this technology can be applicable to automatically switch between built-in radio-frequency (RF) component and external mounted radio-frequency (RF) component, works as product
When the external mounted radio-frequency (RF) component of product accesses, whether testing circuit can detect external mounted radio-frequency (RF) component automatically can
Normal work, and automatically switch over.And when external mounted radio-frequency (RF) component has abnormal, it is also possible to actively
Send warning and switch to use built-in radio-frequency (RF) component.
2. this technology can be applicable to have power supply or power free radio circuit.
3. this technology can be carried out while radio circuit operates in the lump, oneself can detect whether improper peace
The facts of dress occurs.
4. this technology can be applicable to radio circuit return merchandise authorization (RMA, Return Merchandise
Authorization) maintenance.
5. for assembling oneself's detection of quality when this technology can be applicable to radio circuit volume production.
6. this technology need not valuable detecting instrument, and can carry out the monitoring of particular radio-frequency circuit and cut by digitized
Change.
Claims (9)
1. a radio-frequency unit, it is characterised in that including:
One radio circuit, including:
One radio circuit adapter, for installing a radio-frequency (RF) component to launch or to receive a radiofrequency signal；
And
One power supply module, decides whether to provide electrical power to described radio frequency electrical according to a control signal
Path connector；And
One testing circuit, including:
One signal output part, receives and provides a detection signal；
One first filter unit, has one first external connection terminal and one second external connection terminal, institute
State the first external connection terminal in order to be electrically coupled to described signal output part to receive described detection signal, institute
State the second external connection terminal and be electrically coupled to described radio circuit, and described first filter unit is used for filtering
Described radiofrequency signal；And
One testing result provides unit, has an external input terminals, the electrical coupling of described external input terminals
It is connected to described first external connection terminal, and described testing result provides unit according to described external input terminals
Potential change situation and determine the content of described control signal.
2. radio-frequency unit as claimed in claim 1, it is characterised in that described testing circuit also includes:
One second filter unit, has one the 3rd external connection terminal and one the 4th external connection terminal, and described
Three external connection terminal are electrically coupled to described signal output part, and described 4th external connection terminal is electrically coupled to
Described first external connection terminal.
3. radio-frequency unit as claimed in claim 1, it is characterised in that described testing result provides unit bag
Include:
One rectification unit, is electrically coupled to described external input terminals, and described rectification unit is defeated to described outside
The current potential entering end carries out rectifying operation and exports a rectified signal of correspondence；And
One direct current detector unit, is electrically coupled to described rectification unit to receive described rectified signal, and root
Determine that according to described rectified signal described testing result provides the content of the described control signal of unit offer.
4. radio-frequency unit as claimed in claim 3, it is characterised in that described DC detecting unit includes:
One bleeder circuit, has one first running voltage input and multiple dividing potential drop outfan, Mei Yifen
Pressure outfan provides the current potential different from other dividing potential drop outfans；
Multiple comparators, each comparator has a reference input, one to compare input and relatively more defeated
Going out end, it is right that the described reference input of each comparator is electrically coupled in the plurality of dividing potential drop outfan
Answering one, the described input that compares receives and states rectified signal, and is compared outfan output compared knot by described
Really；And
One encoder, the comparative result exported according to each comparator, determine that described testing result provides
The content of the described control signal that unit provides.
5. radio-frequency unit as claimed in claim 1, it is characterised in that also include:
One detection signal generation unit, produces described detection signal and provides to described signal output part.
6. radio-frequency unit as claimed in claim 1, it is characterised in that also include:
One detects signal element gently, and one end is electrically coupled to described signal output part and receives described detection letter
Number, and it is electrically coupled to described first external connection terminal of described first filter unit.
7. a control method, described control method is applied to as according to any one of claim 1 to 6
Radio-frequency unit, it is characterised in that comprise the following steps:
Carry out comparing operation, relatively the current potential of the described external input terminals of described testing result offer unit
With the content of at least one current potential in a preset potential group, obtain comparing the result of operation；And
According to the described result comparing operation, determine the content of described control signal.
8. control method as claimed in claim 7, it is characterised in that according to the described result comparing operation,
Determine the content of described control signal, including:
Compared with the described result comparing operation is preset consequential signal with one, and described default consequential signal
Content is: when detection normally couples the described radio circuit of described radio-frequency (RF) component, described testing circuit enters
Row described compare operation after obtained by the described result comparing operation.
9. control method as claimed in claim 8, it is characterised in that according to the described result comparing operation,
Determine the content of described control signal, also include:
When described testing circuit carry out described compare operation after obtained by the described result comparing operation and institute
State the content of default consequential signal identical time, making described control signal control described power supply module provides
Electric power is to described radio-frequency (RF) component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510020141.4A CN105846852B (en) | 2015-01-15 | 2015-01-15 | Radio-frequency unit and its adjusting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510020141.4A CN105846852B (en) | 2015-01-15 | 2015-01-15 | Radio-frequency unit and its adjusting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105846852A true CN105846852A (en) | 2016-08-10 |
| CN105846852B CN105846852B (en) | 2018-12-18 |
Family
ID=56579975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510020141.4A Active CN105846852B (en) | 2015-01-15 | 2015-01-15 | Radio-frequency unit and its adjusting method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105846852B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107404292A (en) * | 2016-12-01 | 2017-11-28 | 上海韦玏微电子有限公司 | For power detection circuit |
| CN111308303A (en) * | 2020-02-19 | 2020-06-19 | Tcl移动通信科技（宁波）有限公司 | Method and device for detecting radio frequency power amplifier of mobile terminal |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1226780A (en) * | 1998-02-17 | 1999-08-25 | 富士通株式会社 | Controller of funger apparatus and method for controlling power supply to tuner of tuner apparatus |
| CN101119119A (en) * | 2007-08-23 | 2008-02-06 | 华为技术有限公司 | Method and apparatus for detecting open circuit fault of transmitter |
| CN101135710A (en) * | 2007-08-08 | 2008-03-05 | 中兴通讯股份有限公司 | Circuit for detecting radio-frequency power amplifier output terminal port communicating condition |
| CN102064517A (en) * | 2010-08-24 | 2011-05-18 | 深圳市九洲电器有限公司 | Set top box and antenna short circuit protection module thereof |
| US20130234741A1 (en) * | 2012-03-08 | 2013-09-12 | Matthew A. Mow | Methods for Characterizing Tunable Radio-Frequency Elements |
-
2015
- 2015-01-15 CN CN201510020141.4A patent/CN105846852B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1226780A (en) * | 1998-02-17 | 1999-08-25 | 富士通株式会社 | Controller of funger apparatus and method for controlling power supply to tuner of tuner apparatus |
| CN101135710A (en) * | 2007-08-08 | 2008-03-05 | 中兴通讯股份有限公司 | Circuit for detecting radio-frequency power amplifier output terminal port communicating condition |
| CN101119119A (en) * | 2007-08-23 | 2008-02-06 | 华为技术有限公司 | Method and apparatus for detecting open circuit fault of transmitter |
| CN102064517A (en) * | 2010-08-24 | 2011-05-18 | 深圳市九洲电器有限公司 | Set top box and antenna short circuit protection module thereof |
| US20130234741A1 (en) * | 2012-03-08 | 2013-09-12 | Matthew A. Mow | Methods for Characterizing Tunable Radio-Frequency Elements |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107404292A (en) * | 2016-12-01 | 2017-11-28 | 上海韦玏微电子有限公司 | For power detection circuit |
| CN111308303A (en) * | 2020-02-19 | 2020-06-19 | Tcl移动通信科技（宁波）有限公司 | Method and device for detecting radio frequency power amplifier of mobile terminal |
| CN111308303B (en) * | 2020-02-19 | 2022-07-08 | Tcl移动通信科技（宁波）有限公司 | Method and device for detecting radio frequency power amplifier of mobile terminal |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105846852B (en) | 2018-12-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8461847B2 (en) | Electrical interconnect status monitoring system | |
| CA2426530A1 (en) | Monitoring system and method for wiring systems | |
| CN102970051A (en) | Anti-interference wireless communication system | |
| US20130033270A1 (en) | Electromagnetic interference test sytem with self-checking function and self-checking method | |
| CN106130668A (en) | A kind of airborne collision avoidance system radio frequency unit self-checking system and self checking method | |
| CN110728814A (en) | Anti-electricity-stealing video evidence-obtaining and real-time warning device | |
| CN105846852A (en) | Radio frequency device and adjusting method | |
| US20150146800A1 (en) | Conditioning device and method for conditioning a data channel of a cell of an electrical energy store | |
| CN102540021A (en) | Method for monitoring GIS (gas insulated switchgear) by aid of high-frequency partial discharge online system | |
| EP3346552B1 (en) | Remote data concentrator self-test | |
| CN103458448A (en) | Method and device for diagnosing communication network fault | |
| CN116760437B (en) | Broadband microwave receiving and transmitting control method and system applied to phased array system | |
| CN112822652A (en) | Power transmission line multi-state perception early warning system | |
| TWI533632B (en) | Radio frequency apparatus and adjusting method thereof | |
| US8060076B2 (en) | Real-time RSL monitoring in a web-based application | |
| TW201616718A (en) | Radio frequency apparatus and adjusting method thereof | |
| CN201699994U (en) | Wireless network quality monitoring terminal | |
| CN111007363A (en) | Transmission line fault monitoring device, method and equipment and storage medium | |
| CN105548788B (en) | Radio-frequency unit and its adjusting method | |
| KR101628353B1 (en) | Measuring Apparatus for Return Current | |
| CN111929613B (en) | Same-section bus parasitic loop online monitoring device based on alternating current leakage current sensor | |
| CN109698550A (en) | A kind of power transformer intelligent online state estimating system | |
| WO2017115163A1 (en) | A method and an apparatus for communicating a condition of a power line | |
| CN103578279A (en) | Method and device for detecting annular coil vehicle | |
| EP3404928B1 (en) | Improved electronic unit for controlling fire sensors |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |