CN101900778B - Fault self-diagnosis method of matching network and device thereof - Google Patents
Fault self-diagnosis method of matching network and device thereof Download PDFInfo
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Abstract
The invention relates to a method and a device for detecting circuit fault, in particular to a fault self-diagnosis method of a matching network and a device thereof; the method comprises the following steps: transmitting a signal of resonance frequency to a matching network, conveniently, quickly and accurately detecting a fault relay module by comparing voltage amplitude V, voltage amplitude I and phase error phi under three states of initial switch position, switched position and returned initial position of the relay.
Description
Technical field
The present invention relates to a kind of fault detection method and device, particularly a kind of matching network fault self-diagnosis method and device.
Background technology
Antenna matching network (abbreviation matching network) is the coalignment of tuning high-power emitting antenna; Be also referred to as antenna tuning network; It converts the antenna impedance that changes with frequency of operation and external environment condition to equal transmitter as far as possible output impedance (50 Ω), makes transmitter be transferred to the power maximum of antenna.
The composition of existing matching network is as shown in Figure 1, mainly is made up of shunt capacitance module 1, series capacitance module 2, series inductance module 3 and antenna capacitance module 4; Said shunt capacitance module 1 be by a plurality of capacitor C 11, C12 ..., C1n composes in parallel, each electric capacity respectively through be series at separately relay K 11, K12 ..., K1n is connected with network; Said series capacitance module 2 be by a plurality of capacitor C 21, C22 ..., C2n is composed in series, said capacitor C 21, C22 ..., C2n the respectively parallelly connected relay K in two ends 21, K22 ..., K2n; Said series inductance module 3 be by a plurality of inductance L 31, L32 ..., L3n is composed in series, said inductance L 31, L32 ..., L3n the respectively parallelly connected relay K in two ends 31, K32 ..., K3n; Said antenna capacitance module 4 be by a plurality of capacitor C 41, C42 ..., C4n composes in parallel, each electric capacity respectively through relay K 41, K42 ..., K4n is connected with network.Switch through transfer relay is regulated the impedance of matching network, judges to meet the requirements of the resistance value scope whether coupling is good.
In real work, require matching network to be operated in any point in the frequency range, like the shortwave arbitrary Frequency point in 3MHz--30MHz then.Because the uncontinuity between capacitance, the inductance value when each frequency carries out tuning coupling, needs to connect or disconnect a certain relay repeatedly, repeatedly, thereby finally reaches best matching effect.If there is hardware fault in day inner matching network of accent, just need check that successively relay has non-fault with manual work, debug after powering on, and can't check whether inductance or electric capacity in the matching network damage.For a long time, entirely with the machine of accent personnel's experience, need spend inductance or electric capacity that several days time just can find out damage for the judgement of inductance that damages or electric capacity sometimes.Accent machine workload is very big, and efficient is extremely low, and needs to consume a large amount of electric energy.
How convenient, fast and accurately in debug process detect power transfer relay or a certain fault inductance, electric capacity is that high-power communication broadcast transmitter presses for one of difficult problem of solution.
Because big, the inefficient deficiency of the existing above-mentioned workload of above-mentioned existing matching network fault detection method; The inventor is based on being engaged in this type of product design manufacturing abundant for many years practical experience and professional knowledge; And cooperate the utilization of studying the science, actively study innovation, in the hope of founding a kind of new matching network fault self-diagnosis method and device; Can improve general existing manual lookup method, make it have more practicality.Through constantly research, design, and after studying sample and improvement repeatedly, found out the present invention of true tool practical value finally.
Summary of the invention
Fundamental purpose of the present invention is; Overcome the manual work of existing matching network fault and search the above-mentioned defective of existence; And a kind of matching network fault self-diagnosis method and device are provided; Technical matters to be solved is whether to have fault through the relay module that Computer Control Unit is monitored in the matching network automatically, with the raising debugging efficiency, thereby is suitable for practicality more.Said relay module comprises relay and the electric capacity or the inductance element that are inserted by this relay control.
The object of the invention and solve its technical matters and adopt following technical scheme to realize.
According to a kind of matching network fault self-diagnosis device that the present invention proposes, said matching network mainly is made up of shunt capacitance module 1, series capacitance module 2, series inductance module 3 and antenna capacitance module 4; Said shunt capacitance module 1 be by a plurality of capacitor C 11, C12 ..., C1n composes in parallel, each electric capacity respectively through be series at separately relay K 11, K12 ..., K1n is connected with network; Said series capacitance module 2 be by a plurality of capacitor C 21, C22 ..., C2n is composed in series, said capacitor C 21, C22 ..., C2n the respectively parallelly connected relay K in two ends 21, K22 ..., K2n; Said series inductance module 3 be by a plurality of inductance L 31, L32 ..., L3n is composed in series, said inductance L 31, L32 ..., L3n the respectively parallelly connected relay K in two ends 31, K32 ..., K3n; Said antenna capacitance module 4 be by a plurality of capacitor C 41, C42 ..., C4n composes in parallel, each electric capacity respectively through relay K 41, K42 ..., K4n is connected with network, regulates the impedance of matching network through the switch of transfer relay; And with the electric capacity in said shunt capacitance module, series capacitance module, series inductance module and the antenna capacitance module or inductance element and this element of control inserts or the combination of the relay of short circuit is defined as relay module; Wherein, Said self-diagnosis system comprises input signal source, measurement module, controller, display and interface circuit; Said measurement module is located at the input end of said matching network, monitoring input signal flow through voltage amplitude amplitude V, current amplitude value I and the phase differential Φ between them of matching network; Said controller connects said input signal source, measurement module, display and interface circuit; The debug signal of matching network certain frequency is given in said controller follow procedure control input signals source; The duty of pilot relay module repeat circuit in regular turn; Voltage amplitude amplitude V, current amplitude value I and the phase differential Φ between them under certain switch different conditions of sending here according to measurement module analyze comparison; Judge whether this relay module is trouble unit,, and send display to show result's storage.
A kind of matching network fault self-diagnosis device that the present invention proposes adopts following technical measures further to realize.
The device of aforesaid matching network fault self-diagnosis method; Wherein said input signal source mainly is to be made up of Direct Digital Frequency Synthesizers DDS and power amplifier; Said Direct Digital Frequency Synthesizers DDS connects said controller; Said controller is controlled said Direct Digital Frequency Synthesizers DDS and is produced stable required frequency signal, and said power amplifier carries out power amplification with the stable frequency signal of Direct Digital Frequency Synthesizers DDS generation and send matching network.
The device of aforesaid matching network fault self-diagnosis method, wherein said controller is a microprocessor microcontroller.
The device of aforesaid matching network fault self-diagnosis method also is in series with wave filter on the relay circuit in the wherein said relay module.
The present invention also provides a kind of matching network fault self-diagnosis method that adopts aforementioned means, and said matching network mainly is made up of shunt capacitance module, series capacitance module, series inductance module and antenna capacitance module; Said shunt capacitance module be by a plurality of capacitor C 11, C12 ..., C1n composes in parallel, each electric capacity respectively through be series at separately relay K 11, K12 ..., K1n is connected with network; Said series capacitance module be by a plurality of capacitor C 21, C22 ..., C2n is composed in series, said capacitor C 21, C22 ..., C2n the respectively parallelly connected relay K in two ends 21, K22 ..., K2n; Said series inductance module be by a plurality of inductance L 31, L32 ..., L3n is composed in series, said inductance L 31, L32 ..., L3n the respectively parallelly connected relay K in two ends 31, K32 ..., K3n; Said antenna capacitance module be by a plurality of capacitor C 41, C42 ..., C4n composes in parallel, each electric capacity respectively through relay K 41, K42 ..., K4n is connected with network; And with the electric capacity in said shunt capacitance module, series capacitance module, series inductance module and the antenna capacitance module or inductance element and this element of control inserts or the combination of the relay of short circuit is defined as relay module; Said fault self-diagnosis device comprises input signal source, measurement module and controller; Said method comprising the steps of:
(1) the resonance frequency f0 of searching matching network;
(2) said controller follow procedure control input signals source is that the signal of f0 send matching network with frequency;
Voltage amplitude amplitude V1, current amplitude value I1 and the phase differential Φ 1 between them when (3) said measurement module writes down this state are made as state one with this state;
(4) said controller follow procedure changes the on off state of the relay among the measured relay module N, and voltage amplitude amplitude V2, current amplitude value I2 and the phase differential Φ 2 between them when said measurement module writes down this state are made as state two with this state;
(5) said controller changes the on off state of the relay among the measured relay module N once more, and voltage amplitude amplitude V3, current amplitude value I3 and the phase differential Φ 3 between them when said measurement module writes down this state are made as state three with this state;
(6) controller compares V, I and the Φ under three kinds of states;
(6-1) if | V1-V3|＜| V1-V2| or | V1-V3|＜| V3-V2| then get into next step, otherwise this relay module N is a malfunctioning module;
(6-2) if | I1-I3|＜| I1-I2| or | I1-I3|＜| I3-I2| then get into next step, otherwise this relay module N is a malfunctioning module;
(6-3) if | Φ 1-Φ 3|＜| Φ 1-Φ 2| or | Φ 1-Φ 3|＜| Φ 3-Φ 2|, this relay module non-fault then, otherwise this relay module N is a malfunctioning module, gets back to (4), carries out the detection of next relay module N+1.
Matching network fault self-diagnosis method provided by the present invention also can adopt following technical measures further to realize.
Aforesaid matching network fault self-diagnosis method, wherein the resonance frequency f0 of the matching network of the described searching current state of step 1 may further comprise the steps:
(1-1) controller is with the whole short circuits of the capacitor and inductor in the matching network;
(1-2) controller is in the whole operating frequency range of matching network, and every separated 0.1MHz samples, calculates, compares, and seeks the frequency of voltage standing wave ratio (VSWR) minimum;
(1-3) voltage standing wave ratio (VSWR) of said minimum frequency then is resonance frequency f0 in the frequency below 1.1.
Aforesaid matching network fault self-diagnosis method, wherein the resonance frequency f0 of the matching network of the described searching current state of step 1 may further comprise the steps:
(1-1) controller is with the whole short circuits of the capacitor and inductor in the matching network;
(1-2) controller is in the whole operating frequency range of matching network, and every separated 0.5MHz samples, calculates, compares, and seeks the frequency f0 ' of voltage standing wave ratio (VSWR) minimum;
(1-3) again in the scope of f0 ' ± 0.4MHz, every at a distance from the 0.1MHz sampling, calculate, relatively, seek the minimum frequency of voltage standing wave ratio (VSWR);
(1-4) voltage standing wave ratio (VSWR) of said minimum frequency then is resonance frequency f0 in the frequency below 1.1.
The present invention also provides the another kind of matching network fault self-diagnosis method that adopts aforementioned means, and said matching network mainly is made up of shunt capacitance module, series capacitance module, series inductance module and antenna capacitance module; Said shunt capacitance module be by a plurality of capacitor C 11, C12 ..., C1n composes in parallel, each electric capacity respectively through be series at separately relay K 11, K12 ..., K1n is connected with network; Said series capacitance module be by a plurality of capacitor C 21, C22 ..., C2n is composed in series, said capacitor C 21, C22 ..., C2n the respectively parallelly connected relay K in two ends 21, K22 ..., K2n; Said series inductance module be by a plurality of inductance L 31, L32 ..., L3n is composed in series, said inductance L 31, L32 ..., L3n the respectively parallelly connected relay K in two ends 31, K32 ..., K3n; Said antenna capacitance module be by a plurality of capacitor C 41, C42 ..., C4n composes in parallel, each electric capacity respectively through relay K 41, K42 ..., K4n is connected with network; And with the electric capacity in said shunt capacitance module, series capacitance module, series inductance module and the antenna capacitance module or inductance element and this element of control inserts or the combination of the relay of short circuit is defined as relay module; Said fault self-diagnosis device comprises input signal source, measurement module and controller; Said method comprising the steps of:
(1) matching network is sent with the signal of the optional frequency f1 in the operating frequency range fmin～fmax of matching network in said controller follow procedure control input signals source;
(2) said measurement module writes down this state voltage amplitude amplitude Vf11, current amplitude value If11 and the phase differential Φ f11 between them for the moment;
(3) said controller changes the on off state of the relay among the measured relay module N, the voltage amplitude amplitude Vf12 when writing down this state two, current amplitude value If12 and the phase differential Φ f12 between them;
(4) change the on off state of the relay among the measured relay module N once more, the voltage amplitude amplitude Vf13 when writing down this state three, current amplitude value If13 and the phase differential Φ f13 between them;
(5) V, I and the Φ under three kinds of states of comparison;
(5-1) if | Vf11-Vf13|＜| Vf11-Vf12| or
| Vf11-Vf13|＜| Vf13-Vf12| then get into next step, otherwise this relay module N possibly be malfunctioning module;
(5-2) if | If11-If13|＜| If11-If12| or
| If11-If13|＜| If13-If12| then get into next step, otherwise this relay module N possibly be malfunctioning module;
(5-3) if | Φ f11-Φ f13|＜| Φ f11-Φ f12| or
| Φ f11-Φ f13|＜| Φ f13-Φ f12|, this relay module non-fault then, otherwise this relay module N is a malfunctioning module;
(6) be that the signal of f2 send matching network with frequency, and f2 and f1 are with working frequency range center symmetry;
(7) write down this state voltage amplitude amplitude Vf21, current amplitude value If21 and the phase differential Φ f21 between them for the moment;
(8) on off state of the relay among the change measured relay module N, the voltage amplitude amplitude Vf22 when writing down this state two, current amplitude value If22 and the phase differential Φ f22 between them;
(9) change the on off state of the relay among the measured relay module N once more, the voltage amplitude amplitude Vf23 when writing down this state three, current amplitude value If23 and the phase differential Φ f23 between them;
(10) V, I and the Φ under three kinds of states of comparison, and the result in (5) judges jointly;
(10-1) V relatively, if | Vf21-Vf23|＜| Vf21-Vf22| or
| Vf21-Vf23|＜| Vf23-Vf22|, then get into next step, otherwise check whether this relay module N is malfunctioning module in (5-1), if then this relay module N is a malfunctioning module, if not, then get into next step;
(10-2) I relatively, if | If21-If23|＜| If21-If22| or
| If21-If23|＜| If23-If22|, then get into next step, otherwise check whether this relay module N is malfunctioning module in (5-2), if then this relay module N is a malfunctioning module, if not, then get into next step;
(10-3) Φ relatively, if | Φ f21-Φ f23|＜| Φ f21-Φ f22| or
| Φ f21-Φ f23|＜| Φ f23-Φ f22|, this relay module non-fault then, otherwise check whether this relay module N is malfunctioning module in (5-3); If; Then this relay module N is a malfunctioning module, if not, and this relay module N non-fault then; Get back to (3), carry out the detection of next relay module N+1.
By technique scheme, matching network fault self-diagnosis method of the present invention and device have advantage and beneficial effect at least:
1, matching network fault self-diagnosis method of the present invention and device can convenient and swiftly detect the inner hardware fault of matching network exactly, have greatly improved the debugging speed of high-power communication broadcast transmitter.
2, the present invention adopts DDS small power amplifier signal source to send into the required frequency signal of debugging to carry out preset and detection, save the energy consumption that powerful device is transferred machine.
In sum, the present invention has above-mentioned plurality of advantages and practical value, no matter it all has bigger improvement on product structure, method or function; Obvious improvement is arranged technically; And produced handy and practical effect, and have trouble-free method to have the outstanding multinomial effect of enhancement than existing manual inspection matching network hardware, thus be suitable for practicality more; And have the extensive value of industry, really be a novelty, progress, practical new design.
Above-mentioned explanation only is the general introduction of technical scheme of the present invention; Understand technological means of the present invention in order can more to know; And can implement according to the content of instructions, and for let of the present invention above-mentioned with other purposes, feature and advantage can be more obviously understandable, below special act preferred embodiment; And conjunction with figs., specify as follows.
Description of drawings
Fig. 1 is the matching network structure synoptic diagram.
Fig. 2 is a kind of implementation step process flow diagram of matching network fault self-diagnosis method of the present invention.
Fig. 3 is the another kind of implementation step process flow diagram of matching network fault self-diagnosis method of the present invention.
Fig. 4 is the apparatus structure synoptic diagram of embodiment of the present invention matching network fault self-diagnosis method.
Embodiment
Relevant aforementioned and other technology contents, characteristics and effect of the present invention can be known to appear in the following detailed description that cooperates with reference to graphic preferred embodiment.Through the explanation of embodiment, when can being to reach technological means that predetermined purpose takes and effect to get one more deeply and concrete understanding to the present invention, yet the appended graphic usefulness that only provides reference and explanation be not to be used for the present invention is limited.
Matching network fault self-diagnosis method of the present invention is meant isolated plant is set in matching network, replaces the artificial power transfer relay module in the matching network of searching with assembling apparatus, so that quick the replacing saved adjusting machine time.Said relay module is meant, the combination of the relay of this element access of electric capacity in shunt capacitance module 1, series capacitance module 2, series inductance module 3 and the antenna capacitance module 4 of formation matching network or inductance element and control or short circuit.Like Fig. 1, shown in 4; Said shunt capacitance module 1 be by a plurality of capacitor C 11, C12 ..., C1n composes in parallel; Each electric capacity respectively through be series at separately relay K 11, K12 ..., K1n is connected with network, pilot relay K11, K12 ..., the K1n adhesive be may command C11, C12 ..., C1n inserts matching network; Said series capacitance module 2 be by a plurality of capacitor C 21, C22 ..., C2n is composed in series; Said capacitor C 21, C22 ..., C2n the respectively parallelly connected relay K in two ends 21, K22 ..., K2n; Pilot relay K21, K22 ..., the K2n adhesive, can distinguish control capacitance C21, C22 ..., C2n is by short circuit; Said series inductance module 3 be by a plurality of inductance L 31, L32 ..., L3n is composed in series; Said inductance L 31, L32 ..., L3n the respectively parallelly connected relay K in two ends 31, K32 ..., K3n; Pilot relay K31, K32 ..., the K3n adhesive, can control respectively inductance L 31, L32 ..., L3n is by short circuit; Said antenna capacitance module 4 be by a plurality of capacitor C 41, C42 ..., C4n composes in parallel; Each electric capacity respectively through relay K 41, K42 ..., K4n is connected with network, pilot relay K41, K42 ..., the K4n adhesive can control capacitance C41, C42 ..., C4n inserts matching network.The matching network of Fig. 1 and Fig. 4 is identical, so components and parts are used same numeral.And with the electric capacity in said shunt capacitance module, series capacitance module, series inductance module and the antenna capacitance module or inductance element and this element of control inserts or the combination of the relay of short circuit is defined as relay module;
See also Fig. 2, the flow chart of steps of matching network fault self-diagnosis method of the present invention preferred embodiment may further comprise the steps:
(1) the resonance frequency f0 of searching matching network; Because near tuning-points, sampled value is very sensitive to the minor alteration of matching network.After the method for the resonance frequency f0 of searching matching network is illustrated in;
(2) be that the signal of f0 send matching network with frequency; And the on off state of setting all relays in matching network this moment is a state one;
(3) write down this state voltage amplitude amplitude V1, current amplitude value I1 and the phase differential Φ 1 between them for the moment;
(4) on off state of the relay among the change measured relay module N, and the on off state of all relays is a state two in setting matching network this moment.Voltage amplitude amplitude V2 when writing down this state two, current amplitude value I2 and the phase differential Φ 2 between them; Usually relay module N chooses first, and promptly N is 1, then detects successively;
(5) change the on off state of the relay among the measured relay module N once more, and the on off state of setting all relays in matching network this moment is a state three.Voltage amplitude amplitude V3 when writing down this state three, current amplitude value I3 and the phase differential Φ 3 between them;
(6) V, I and the Φ under three kinds of states of comparison;
(6-1) if | V1-V3|＜| V1-V2| or | V1-V3|＜| V3-V2| then get into next step, otherwise this relay module N is a malfunctioning module;
(6-2) if | I1-I3|＜| I1-I2| or | I1-I3|＜| I3-I2| then get into next step, otherwise this relay module N is a malfunctioning module;
(6-3) if | Φ 1-Φ 3|＜| Φ 1-Φ 2| or | Φ 1-Φ 3|＜| Φ 3-Φ 2|, this relay module non-fault then, otherwise this relay module N is a malfunctioning module, gets back to (4), carries out the detection of next relay module N+1.
The resonance frequency f0 of the matching network of the described searching current state of step 1 may further comprise the steps:
1-1 is with the whole short circuits of the capacitor and inductor in the matching network;
1-2 is in the whole operating frequency range of matching network, and every separated 0.1MHz samples, calculates, compares, and seeks the frequency of voltage standing wave ratio (VSWR) minimum;
The voltage standing wave ratio (VSWR) of the said minimum frequency of 1-3 thinks then that below 1.1 this frequency is resonance frequency f0.
Seek number of times for reducing, the resonance frequency f0 of the matching network of described searching current state can also adopt following steps:
1-1 is with the whole short circuits of the capacitor and inductor in the matching network;
1-2 is in the whole operating frequency range of matching network, and every separated 0.5MHz samples, calculates, compares, and seeks the frequency f0 ' of voltage standing wave ratio (VSWR) minimum; Also can be whenever at a distance from 1MHz, or other are sampled at interval;
In the scope of f0 ' ± 0.4MHz, every separated 0.1MHz samples, calculates, compares 1-3, seeks the frequency of voltage standing wave ratio (VSWR) minimum again; If every at a distance from the 1MHz sampling, then again in the scope of ± 0.9MHz, whenever sample, calculate, relatively at a distance from 0.1MHz, seek the minimum frequency of voltage standing wave ratio (VSWR);
The voltage standing wave ratio (VSWR) of the said minimum frequency of 1-4 thinks then that below 1.1 this frequency is resonance frequency f0.
The present invention also provides a kind of method of searching power transfer relay module in day accent networking with optional frequency.As shown in Figure 3, this may further comprise the steps:
(1) signal with the frequency f 1 in the operating frequency range fmin～fmax of matching network send matching network;
(2) write down this state voltage amplitude amplitude Vf11, current amplitude value If11 and the phase differential Φ f11 between them for the moment;
(3) on off state of the relay among the change measured relay module N, the voltage amplitude amplitude Vf12 when writing down this state two, current amplitude value If12 and the phase differential Φ f12 between them;
(4) change the on off state of the relay among the measured relay module N once more, the voltage amplitude amplitude Vf13 when writing down this state three, current amplitude value If13 and the phase differential Φ f13 between them;
(5) V, I and the Φ under three kinds of states of comparison;
(5-1) if | Vf11-Vf13|＜| Vf11-Vf12| or
| Vf11-Vf13|＜| Vf13-Vf12| then get into next step, otherwise this relay module N possibly be malfunctioning module;
(5-2) if | If11-If13|＜| If11-If12| or
| If11-If13|＜| If13-If12| then get into next step, otherwise this relay module N possibly be malfunctioning module;
(5-3) if | Φ f11-Φ f13|＜| Φ f11-Φ f12| or
| Φ f11-Φ f13|＜| Φ f13-Φ f12|, this relay module non-fault then, otherwise this relay module N is a malfunctioning module;
(6) be that the signal of f2 send matching network with frequency, said f2 and said f1 are with the middle point symmetry of matching network operating frequency range; If f1 is the bottom frequency, then selected f2 should be high-end frequency, and satisfies f1-fmin=fmax-f2; If to embody the influence that the frequency difference detects relay in the whole working range;
(7) write down this state voltage amplitude amplitude Vf21, current amplitude value If21 and the phase differential Φ f21 between them for the moment;
(8) on off state of the relay among the change measured relay module N, the voltage amplitude amplitude Vf22 when writing down this state two, current amplitude value If22 and the phase differential Φ f22 between them;
(9) change the on off state of the relay among the measured relay module N once more, the voltage amplitude amplitude Vf23 when writing down this state three, current amplitude value If23 and the phase differential Φ f23 between them;
(10) V, I and the Φ under three kinds of states of comparison, and the result in (5) judges jointly;
(10-1) V relatively, if | Vf21-Vf23|＜| Vf21-Vf22| or
| Vf21-Vf23|＜| Vf23-Vf22|, then get into next step, otherwise check whether this relay module N is malfunctioning module in (5-1), if then this relay module N is a malfunctioning module, if not, then get into next step;
(10-2) I relatively, if | If21-If23|＜| If21-If22| or
| If21-If23|＜| If23-If22|, then get into next step, otherwise check whether this relay module N is malfunctioning module in (5-2), if then this relay module N is a malfunctioning module, if not, then get into next step;
(10-3) Φ relatively, if | Φ f21-Φ f23|＜| Φ f21-Φ f22| or
| Φ f21-Φ f23|＜| Φ f23-Φ f22|, this relay module non-fault then, otherwise check whether this relay module N is malfunctioning module in (5-3); If; Then this relay module N is a malfunctioning module, if not, and this relay module N non-fault then; Get back to (3), carry out the detection of next relay module N+1.
The present invention also provides a kind of device that is used for above-mentioned matching network fault self-diagnosis method, sees also shown in Figure 4ly, and said matching network comprises that shunt capacitance module 1, series capacitance module 2, series inductance module 3 and antenna capacitance module 4 form; Said shunt capacitance module 1 be by a plurality of capacitor C 11, C12 ..., C1n composes in parallel, each electric capacity respectively through be series at separately relay K 11, K12 ..., K1n is connected with network; Said series capacitance module 2 be by a plurality of capacitor C 21, C22 ..., C2n is composed in series, said capacitor C 21, C22 ..., C2n the respectively parallelly connected relay K in two ends 21, K22 ..., K2n; Said series inductance module 3 be by a plurality of inductance L 31, L32 ..., L3n is composed in series, said inductance L 31, L32 ..., L3n the respectively parallelly connected relay K in two ends 31, K32 ..., K3n; Said antenna capacitance module 4 be by a plurality of capacitor C 41, C42 ..., C4n composes in parallel, each electric capacity respectively through relay K 41, K42 ..., K4n is connected with network, regulates the impedance of antenna tuning network through the switch of transfer relay; Said device comprises input signal source, measurement module, controller, display and interface circuit; Said measurement module is located at the input end of said matching network, monitoring input signal flow through voltage amplitude amplitude V, current amplitude value I and the phase differential Φ between them of matching network; Said controller connects said input signal source, measurement module, display and interface circuit; The debug signal of matching network certain frequency is given in said controller follow procedure control input signals source; The duty of pilot relay module repeat circuit in regular turn; Voltage amplitude amplitude V, current amplitude value I and the phase differential Φ between them under certain switch different conditions of sending here according to measurement module analyze comparison; Judge whether this relay module is trouble unit,, and send display to show result's storage.
Said input signal source mainly is to be made up of Direct Digital Frequency Synthesizers DDS and power amplifier; Said Direct Digital Frequency Synthesizers DDS connects said controller; Said controller is controlled said Direct Digital Frequency Synthesizers DDS and is produced stable required frequency signal, and said power amplifier carries out power amplification with the stable frequency signal of Direct Digital Frequency Synthesizers DDS generation and send matching network.
Said controller is a microprocessor microcontroller.
Also be in series with wave filter on the relay circuit in the said relay module, be used for the induction clutter that possibly occur in the filtering relay power.
The above only is preferred embodiment of the present invention, is not the present invention is done any pro forma restriction; Though the present invention discloses as above with preferred embodiment; Yet be not in order to limiting the present invention, anyly be familiar with the professional and technical personnel, in not breaking away from technical scheme scope of the present invention; When the method for above-mentioned announcement capable of using and technology contents are made a little change or be modified to the equivalent embodiment of equivalent variations; In every case be the content that does not break away from technical scheme of the present invention, to any simple modification, equivalent variations and modification that above embodiment did, all still belong in the scope of technical scheme of the present invention according to technical spirit of the present invention.
Claims (8)
1. matching network fault self-diagnosis device, said matching network mainly is made up of shunt capacitance module 1, series capacitance module 2, series inductance module 3 and antenna capacitance module 4; Said shunt capacitance module 1 be by a plurality of capacitor C 11, C12 ..., C1n composes in parallel, each electric capacity respectively through be series at separately relay K 11, K12 ..., K1n is connected with network; Said series capacitance module 2 be by a plurality of capacitor C 21, C22 ..., C2n is composed in series, said capacitor C 21, C22 ..., C2n the respectively parallelly connected relay K in two ends 21, K22 ..., K2n; Said series inductance module 3 be by a plurality of inductance L 31, L32 ..., L3n is composed in series, said inductance L 31, L32 ..., L3n the respectively parallelly connected relay K in two ends 31, K32 ..., K3n; Said antenna capacitance module 4 be by a plurality of capacitor C 41, C42 ..., C4n composes in parallel, each electric capacity respectively through relay K 41, K42 ..., K4n is connected with network, regulates the impedance of matching network through the switch of transfer relay; And with the electric capacity in said shunt capacitance module, series capacitance module, series inductance module and the antenna capacitance module or inductance element and this element of control inserts or the combination of the relay of short circuit is defined as relay module; It is characterized in that; Said self-diagnosis system comprises input signal source, measurement module, controller, display and interface circuit; Said measurement module is located at the input end of said matching network, monitoring input signal flow through voltage amplitude amplitude V, current amplitude value I and the phase differential Φ between them of matching network; Said controller connects said input signal source, measurement module, display and interface circuit; The debug signal of matching network certain frequency is given in said controller follow procedure control input signals source; The duty of pilot relay module repeat circuit in regular turn; Voltage amplitude amplitude V, current amplitude value I and the phase differential Φ between them under certain switch different conditions of sending here according to measurement module analyze comparison; Judge whether this relay module is trouble unit,, and send display to show result's storage.
2. matching network fault self-diagnosis device according to claim 1; It is characterized in that said input signal source mainly is to be made up of Direct Digital Frequency Synthesizers DDS and power amplifier; Said Direct Digital Frequency Synthesizers DDS connects said controller; Said controller is controlled said Direct Digital Frequency Synthesizers DDS and is produced stable required frequency signal, and said power amplifier carries out power amplification with the stable frequency signal of Direct Digital Frequency Synthesizers DDS generation and send matching network.
3. matching network fault self-diagnosis device according to claim 1 is characterized in that said controller is a microprocessor microcontroller.
4. matching network fault self-diagnosis device according to claim 1 is characterized in that also being in series with on the relay circuit in the said relay module wave filter.
5. matching network fault self-diagnosis method with the said device of claim 1, said matching network mainly is made up of shunt capacitance module, series capacitance module, series inductance module and antenna capacitance module; Said shunt capacitance module be by a plurality of capacitor C 11, C12 ..., C1n composes in parallel, each electric capacity respectively through be series at separately relay K 11, K12 ..., K1n is connected with network; Said series capacitance module be by a plurality of capacitor C 21, C22 ..., C2n is composed in series, said capacitor C 21, C22 ..., C2n the respectively parallelly connected relay K in two ends 21, K22 ..., K2n; Said series inductance module be by a plurality of inductance L 31, L32 ..., L3n is composed in series, said inductance L 31, L32 ..., L3n the respectively parallelly connected relay K in two ends 31, K32 ..., K3n; Said antenna capacitance module be by a plurality of capacitor C 41, C42 ..., C4n composes in parallel, each electric capacity respectively through relay K 41, K42 ..., K4n is connected with network; And with the electric capacity in said shunt capacitance module, series capacitance module, series inductance module and the antenna capacitance module or inductance element and this element of control inserts or the combination of the relay of short circuit is defined as relay module; Said fault self-diagnosis device comprises input signal source, measurement module and controller, display and interface circuit; Said method comprising the steps of:
(1) the resonance frequency f0 of searching matching network;
(2) said controller follow procedure control input signals source is that the signal of f0 send matching network with frequency;
Voltage amplitude amplitude V1, current amplitude value I1 and the phase differential Φ 1 between them when (3) said measurement module writes down this state are made as state one with this state;
(4) said controller follow procedure changes the on off state of the relay among the measured relay module N, and voltage amplitude amplitude V2, current amplitude value I2 and the phase differential Φ 2 between them when said measurement module writes down this state are made as state two with this state;
(5) said controller changes the on off state of the relay among the measured relay module N once more, and voltage amplitude amplitude V3, current amplitude value I3 and the phase differential Φ 3 between them when said measurement module writes down this state are made as state three with this state;
(6) controller compares V, I and the Φ under three kinds of states;
(6-1) if | V1-V3|＜| V1-V2| or | V1-V3|＜| V3-V2| then get into next step, otherwise this relay module N is a malfunctioning module;
(6-2) if | I1-I3|＜| I1-I2| or | I1-I3|＜| I3-I2| then get into next step, otherwise this relay module N is a malfunctioning module;
(6-3) if | Φ 1-Φ 3|＜| Φ 1-Φ 2| or | Φ 1-Φ 3|＜| Φ 3-Φ 2|, this relay module non-fault then, otherwise this relay module N is a malfunctioning module, gets back to (4), carries out the detection of next relay module N+1.
6. matching network fault self-diagnosis method according to claim 5 is characterized in that the resonance frequency f0 of the matching network of the described searching current state of step 1 may further comprise the steps:
(1-1) controller is with the whole short circuits of the capacitor and inductor in the matching network;
(1-2) controller is in the whole operating frequency range of matching network, and every separated 0.1MHz samples, calculates, compares, and seeks the frequency of voltage standing wave ratio (VSWR) minimum;
(1-3) voltage standing wave ratio (VSWR) of said minimum frequency then is resonance frequency f0 in the frequency below 1.1.
7. matching network fault self-diagnosis method according to claim 5 is characterized in that the resonance frequency f0 of the matching network of the described searching current state of step 1 may further comprise the steps:
(1-1) controller is with the whole short circuits of the capacitor and inductor in the matching network;
(1-2) controller is in the whole operating frequency range of matching network, and every separated 0.5MHz samples, calculates, compares, and seeks the frequency f0 ' of voltage standing wave ratio (VSWR) minimum;
(1-3) again in the scope of f0 ' ± 0.4MHz, every at a distance from the 0.1MHz sampling, calculate, relatively, seek the minimum frequency of voltage standing wave ratio (VSWR);
(1-4) voltage standing wave ratio (VSWR) of said minimum frequency then is resonance frequency f0 in the frequency below 1.1.
8. matching network fault self-diagnosis method with the said device of claim 1, said matching network mainly is made up of shunt capacitance module, series capacitance module, series inductance module and antenna capacitance module; Said shunt capacitance module be by a plurality of capacitor C 11, C12 ..., C1n composes in parallel, each electric capacity respectively through be series at separately relay K 11, K12 ..., K1n is connected with network; Said series capacitance module be by a plurality of capacitor C 21, C22 ..., C2n is composed in series, said capacitor C 21, C22 ..., C2n the respectively parallelly connected relay K in two ends 21, K22 ..., K2n; Said series inductance module be by a plurality of inductance L 31, L32 ..., L3n is composed in series, said inductance L 31, L32 ..., L3n the respectively parallelly connected relay K in two ends 31, K32 ..., K3n; Said antenna capacitance module be by a plurality of capacitor C 41, C42 ..., C4n composes in parallel, each electric capacity respectively through relay K 41, K42 ..., K4n is connected with network; And with the electric capacity in said shunt capacitance module, series capacitance module, series inductance module and the antenna capacitance module or inductance element and this element of control inserts or the combination of the relay of short circuit is defined as relay module; Said fault self-diagnosis device comprises input signal source, measurement module and controller, display and interface circuit; Said method comprising the steps of:
(1) matching network is sent with the signal of the optional frequency f1 in the operating frequency range fmin～fmax of matching network in said controller follow procedure control input signals source;
(2) said measurement module writes down this state voltage amplitude amplitude Vf11, current amplitude value If11 and the phase differential Φ f11 between them for the moment;
(3) said controller changes the on off state of the relay among the measured relay module N, the voltage amplitude amplitude Vf12 when writing down this state two, current amplitude value If12 and the phase differential Φ f12 between them;
(4) change the on off state of the relay among the measured relay module N once more, the voltage amplitude amplitude Vf13 when writing down this state three, current amplitude value If13 and the phase differential Φ f13 between them;
(5) V, I and the Φ under three kinds of states of comparison;
(5-1) if | Vf11-Vf13|＜| Vf11-Vf12| or
| Vf11-Vf13|＜| Vf13-Vf12| then get into next step, otherwise this relay module N possibly be malfunctioning module;
(5-2) if | If11-If13|＜| If11-If12| or
| If11-If13|＜| If13-If12| then get into next step, otherwise this relay module N possibly be malfunctioning module;
(5-3) if | Φ f11-Φ f13|＜| Φ f11-Φ f12| or
| Φ f11-Φ f13|＜| Φ f13-Φ f12|, this relay module non-fault then, otherwise this relay module N is a malfunctioning module;
(6) be that the signal of f2 send matching network with frequency, and f2 and f1 are with working frequency range center symmetry;
(7) write down this state voltage amplitude amplitude Vf21, current amplitude value If21 and the phase differential Φ f21 between them for the moment;
(8) on off state of the relay among the change measured relay module N, the voltage amplitude amplitude Vf22 when writing down this state two, current amplitude value If22 and the phase differential Φ f22 between them;
(9) change the on off state of the relay among the measured relay module N once more, the voltage amplitude amplitude Vf23 when writing down this state three, current amplitude value If23 and the phase differential Φ f23 between them;
(10) V, I and the Φ under three kinds of states of comparison, and the result in (5) judges jointly;
(10-1) V relatively, if | Vf21-Vf23|＜| Vf21-Vf22| or
| Vf21-Vf23|＜| Vf23-Vf22|, then get into next step, otherwise check whether this relay module N is malfunctioning module in (5-1), if then this relay module N is a malfunctioning module, if not, then get into next step;
(10-2) I relatively, if | If21-If23|＜| If21-If22| or
| If21-If23|＜| If23-If22|, then get into next step, otherwise check whether this relay module N is malfunctioning module in (5-2), if then this relay module N is a malfunctioning module, if not, then get into next step;
(10-3) Φ relatively, if | Φ f21-Φ f23|＜| Φ f21-Φ f22| or
| Φ f21-Φ f23|＜| Φ f23-Φ f22|, this relay module non-fault then, otherwise check whether this relay module N is malfunctioning module in (5-3); If; Then this relay module N is a malfunctioning module, if not, and this relay module N non-fault then; Get back to (3), carry out the detection of next relay module N+1.
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| US8938026B2 (en) * | 2011-03-22 | 2015-01-20 | Intel IP Corporation | System and method for tuning an antenna in a wireless communication device |
| CN105989230B (en) * | 2015-02-15 | 2021-10-08 | 范圣韬 | New method for obtaining network frequency correlation equivalence |
| CN104767374B (en) * | 2015-03-30 | 2017-12-05 | 中国石油天然气集团公司 | A kind of high-power signal emission control method based on DDS |
| JP7006471B2 (en) * | 2018-04-12 | 2022-01-24 | オムロン株式会社 | State change detection device and state change detection method |
| CN110667383A (en) * | 2018-06-08 | 2020-01-10 | 舍弗勒技术股份两合公司 | Monitoring system for detecting high-voltage circuit of vehicle and vehicle |
| CN109067016A (en) * | 2018-10-31 | 2018-12-21 | 中天华信(天津)智能科技发展有限公司 | A kind of wireless charging system and charge parameter regulating device and method |
| CN114089071A (en) * | 2021-11-22 | 2022-02-25 | 南京熊猫汉达科技有限公司 | Device and method for predicting state of harmonic filtering unit of short-wave transmitter |
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