CN106452463A - Signal processing device, rotary transformer signal collection simulation system and method - Google Patents
Signal processing device, rotary transformer signal collection simulation system and method Download PDFInfo
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- CN106452463A CN106452463A CN201610978236.1A CN201610978236A CN106452463A CN 106452463 A CN106452463 A CN 106452463A CN 201610978236 A CN201610978236 A CN 201610978236A CN 106452463 A CN106452463 A CN 106452463A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/0003—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain
- H04B1/0007—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain wherein the AD/DA conversion occurs at radiofrequency or intermediate frequency stage
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/25—Arrangements specific to fibre transmission
- H04B10/2589—Bidirectional transmission
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Abstract
The embodiment of the invention discloses a signal processing device, a rotary transformer signal collection simulation system and method. The method comprises the steps that excitation signals are collected and are converted into first digital signals, the first digital signals are converted into optical signals, and the optical signals are sent to devices at a rotary transformer side through an optical fiber network; after the signal processing devices at the rotary transformer side receive the optical signals, the optical signals are converted into electric signals of the first digital signals, and the electric signals are restored into the excitation signals; the excitation signals are sent to corresponding rotary transformers, and the rotary transformers generate two ways of rotary transformer signals; and the signal processing devices at the rotary transformer side convert the two ways of rotary transformer signals into the digital signals, convert the digital signals into the optical signals and send the optical signals to a rotary transformer signal collection system through the optical fiber network. The signal processing devices are arranged in different test field areas, the excitation signals and the rotary transformer signals from different test field areas are transmitted through optical fibers, and the problem that the simulation signals: the excitation signals and the rotary transformer signals cannot be transmitted remotely is solved.
Description
Technical field
The present invention relates to the gathering simulation field of rotation varying signal, more particularly, it relates to a kind of signal handling equipment, rotation become
Signals collecting analogue system and method.
Background technology
The application of rotary transformer becomes increasingly prevalent, except requiring the fields such as the high military, Aero-Space of reliability
Outside, also it is widely used in industry, traffic and civil area.Such as make in fields such as refrigerator, air-conditioning, washing machinees at present
In permanent magnet AC motor, position sensor that automobile, motor, electromotor, electric boosted steering wheel etc. are used, speed
In sensor, these all employ rotary transformer.The application of rotary transformer has had become as a kind of inevitable trend.
Rotary transformer is a kind of electromagnetic sensor, also known as synchronous decomposer.It is a kind of the miniature of measurement angle
Ac motor, for measuring rotating shaft angular travel and the angular velocity of rotating object.After rotary transformer receives pumping signal, defeated
Go out to revolve varying signal, the rotation varying signal is that two-way sinusoidal modulation signal, respectively high frequency carrier of the frequency more than or equal to 10KHZ is believed
Number and the low frequency envelope signal that change with motor speed of frequency, the phase contrast between two signals be.
To revolving the gatherer process of varying signal as shown in figure 1, revolving the pumping signal in varying signal acquisition system 1 in prior art
Output module 2 is input to pumping signal Vr in rotary transformer 5, after rotary transformer 5 receives pumping signal Vr, output
Rotation varying signal Va and Vb, Va and Vb is transferred to the rotation varying signal acquisition module 3 of rotation varying signal acquisition system 1 afterwards, by signal
4 pairs of rotation varying signals of processing module are processed.
The product of rotary transformer is applied to before dispatching from the factory, needs the items in Integrated Electronic System to each part of product
Performance is detected, including being acquired emulation to revolving varying signal, and all parts are often positioned in different test places.Existing
To revolving the collection of varying signal often by the way of gathering simulation system is built nearby in technology, but with each integrated electronics
System is to increasing that the functional verification test before bulk test between the subsystem of each test place and interaction are tested, each examination
The relatedness that tests between place is more and more closer, and this mode for building gathering simulation system nearby has been no longer desirable for distance
The collection of the rotation varying signal between different places farther out, and for the rotation between distant different places in prior art
The collection of varying signal is still without good solution.
Content of the invention
The embodiment of the present invention provides a kind of signal handling equipment, rotation varying signal gathering simulation system and method, solves existing
During having the rotation varying signal gathering simulation of technology, the problem that varying signal and pumping signal are difficult to long-distance transmissions is revolved.
For achieving the above object, following technical scheme is embodiments provided：
A kind of signal handling equipment, including signal acquisition module connected with the signal output part of signal end to be collected, with
The connected signals revivification module of the signal input part of signal end to be received, and the opto-electronic conversion mould that can be connected with external fiber
Block, the photoelectric conversion module is connected with the signal acquisition module and the signals revivification module, wherein,
The signal acquisition module, the analogue signal that the signal output part for receiving the signal end to be collected is exported,
And the analogue signal for receiving is converted into digital signal；
The photoelectric conversion module, for the digital signal transmitting photo-signal for exporting the signal acquisition module, will
The optical signal is exported to external fiber, also, the optical signal for being received by external fiber is converted to digital signal；
The signals revivification module, for being converted into simulation by the digital signal being converted to through the photoelectric conversion module
Signal, to export to the signal input part of the signal end to be received.
Preferably, also include, trigger collection module connected with the signal acquisition module, for according to default triggering
Time interval, triggers the signal acquisition module to analogue signal that the signal output part of different signal ends to be collected is exported
Signals collecting works.
Preferably, the trigger collection module includes enumerator and trigger module, and the trigger collection module is by counting
When device count down to predetermined value, trigger module triggers signal output of the signal acquisition module to different signal ends to be collected
The signals collecting work of the analogue signal of end output.
Preferably, also include, delay compensation module connected with the signals revivification module, for through the signal also
The analogue signal for obtaining after former resume module is processed, and is caused because of the time delay of signal processing with compensating the analogue signal
Signal errors.
The invention also discloses a kind of rotation varying signal gathering simulation system, is applied to revolve the gathering simulation process of varying signal,
Including at least one rotary transformer, at least one rotation varying signal acquisition system, two signal handling equipments as above, its
In,
The signal acquisition module of the first signal handling equipment exports mould with the pumping signal of multiple rotation varying signal acquisition systems
Block is connected, and the signals revivification module of the first signal handling equipment is gathered with the rotation varying signal of the plurality of rotation varying signal acquisition system
Module is connected, and the signal acquisition module of secondary signal processing equipment is connected with the rotation varying signal outfan of multiple rotary transformers,
The signals revivification module of secondary signal processing equipment is connected with the pumping signal receiving terminal of the plurality of rotary transformer, two letters
The transmission of signal is carried out between the photoelectric conversion module of number processing equipment by fiber optic Ethernet network.
Preferably, the signal acquisition module of first signal handling equipment and multiple excitations for revolving varying signal acquisition systems
Signal output module is connected, and can gather the analogue signal of multiple different pumping signal outputs, first signal handling equipment
Signals revivification module with the plurality of rotation varying signal acquisition system rotation varying signal acquisition module be connected, reducible multiple differences
Rotation varying signal；
The rotation varying signal outfan phase of the signal acquisition module of the secondary signal processing equipment and multiple rotary transformers
Even, the analogue signal of multiple different rotation varying signal outfan outputs can be gathered, and the signal of the secondary signal processing equipment is also
Grand master pattern block is connected with the pumping signal receiving terminal of multiple rotary transformers, reducible multiple different pumping signals；
Also include trigger collection module in first signal handling equipment and the secondary signal processing equipment, be used for
It is spaced according to the default triggered time, the signal acquisition module for triggering corresponding signal handling equipment gathers different excitations respectively
The analogue signal of signal output, or gather the analogue signal of different rotation varying signal outfan outputs.
The invention also discloses a kind of rotation varying signal gathering simulation method, using above-described rotation varying signal gathering simulation
System, is applied to revolve the gathering simulation process of varying signal, it is characterised in that include：
The pumping signal output of the signal acquisition module collection rotation varying signal acquisition system of first signal handling equipment
Pumping signal, and the pumping signal for collecting is converted into the first digital signal；
The photoelectric conversion module of first signal handling equipment is converted to first digital signal after optical signal, leads to
Cross the photoelectric conversion module that fiber optic network is sent to secondary signal processing equipment；
The photoelectric conversion module of secondary signal processing equipment is received by the photoelectric conversion module of the first signal handling equipment
After the optical signal of transmission, the signal of telecommunication of the first digital signal is converted into, and the signal of telecommunication is sent to the described second letter
The signals revivification module of number processing equipment；
The signals revivification module of the secondary signal processing equipment receives the first numeral letter for being converted to again the signal of telecommunication
After number, first digital signal is reduced into pumping signal, and the pumping signal is sent to corresponding rotary transformer, by revolving
Change depressor and generate two-way rotation varying signal；
The signal acquisition module of the secondary signal processing equipment gathers the two-way rotation of the rotary transformer output and becomes letter
Number, and two-way rotation varying signal is respectively converted into the second digital signal and the 3rd digital signal；
Second digital signal and the 3rd digital signal are turned by the photoelectric conversion module of the secondary signal processing equipment
After being changed to optical signal, the photoelectric conversion module of the first signal handling equipment is sent to by fiber optic network；
The photoelectric conversion module of the first signal handling equipment receives the photoelectric conversion module of secondary signal processing equipment and sends out
The optical signal, after the optical signal for sending, is converted to the signal of telecommunication of the second digital signal and the 3rd digital signal, and by the signal of telecommunication
It is sent to the signals revivification module of first signal handling equipment；
The signals revivification module of first signal handling equipment receives the described second number for being converted to again the signal of telecommunication
After word signal and the 3rd digital signal, second digital signal and the 3rd digital signal are reduced to the rotary transformer defeated
The two-way rotation varying signal for going out, and pass through fiber optic network, two-way rotation varying signal is sent to corresponding rotation varying signal collection system
System is processed accordingly.
Preferably, the multiple different pumping signals of the signal gathering unit collection of first signal handling equipment are exported
Analogue signal；The signal gathering unit of the secondary signal processing equipment gathers multiple different rotation varying signal outfan outputs
Analogue signal；
The pumping signal output of the signal acquisition module collection rotation varying signal acquisition system of first signal handling equipment
Pumping signal be specially：
For the signal acquisition module of first signal handling equipment, it is spaced according to the default triggered time, triggering should
Signal acquisition module gathers the excitation letter of the pumping signal output of different rotation varying signal acquisition systems successively in different time sections
Number；
The signal acquisition module of the secondary signal processing equipment receives the two-way rotation of the rotary transformer output and becomes letter
Number be specially：
For the signal acquisition module of the secondary signal processing equipment, it is spaced according to the default triggered time, triggering should
Signal acquisition module gathers the two-way rotation varying signal of different rotary transformer outputs successively in different time sections.
Preferably, within the default triggered time is spaced in -9 microsecond of 1 microsecond.
Preferably, the signals revivification module of first signal handling equipment receives second digital signal and the 3rd
After digital signal, the two-way rotation that second digital signal and the 3rd digital signal are reduced to rotary transformer output becomes
After signal, also include：
By the signal handling equipment delay compensation module to the signals revivification through first signal handling equipment
Two-way rotation varying signal after module reduction is processed, to compensate two-way rotation varying signal spinning transformator output
Afterwards, until being transferred to the signal errors that the compensating module process causes because of time delay.
Compared with prior art, the embodiment of the present invention has advantages below：
Signal handling equipment provided in an embodiment of the present invention, rotation varying signal gathering simulation system and method, by difference
Test place in arrange signal handling equipment, pumping signal and the rotation of analogue signal will be all by corresponding signal handling equipment
Varying signal is converted to digital signal, comes from pumping signal and the rotation varying signal of different tests place afterwards by optical fiber transmission,
Again the pumping signal and rotation varying signal that have been converted into digital signal are reduced to analogue signal afterwards, original same so as to solve
Pumping signal for analogue signal and rotation varying signal are unable to the problem of long-distance transmissions so that the rotation positioned at different tests place becomes
The gathering simulation process of signal becomes simple to operation.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Accompanying drawing to be used needed for technology description is had to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, acceptable
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the schematic diagram of the gatherer process in prior art to rotation varying signal；
Fig. 2 is the structure chart of signal handling equipment disclosed in the embodiment of the present invention；
Fig. 3 is the structure chart of signal handling equipment disclosed in another embodiment of the present invention；
Fig. 4 is the structure chart of the disclosed rotation varying signal gathering simulation system of another embodiment of the present invention；
Fig. 5 is the signaling diagram of the disclosed rotation varying signal gathering simulation method of another embodiment of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawings the embodiment of the present invention is described further, it should be noted that in this specification each
Embodiment is described by the way of going forward one by one, and what each embodiment was stressed is the difference with other embodiment, each
Between embodiment identical similar portion mutually referring to.For device disclosed in embodiment, due to itself and embodiment public affairs
The method that opens is corresponding, so description is fairly simple, related part is referring to method part illustration.
Inventor has found, it is impossible to which the reason for carrying out, between the test place that adjusts the distance farther out, the collection for revolving varying signal is,
The pumping signal of varying signal gathering simulation system output is revolved, and the rotation varying signal of rotary transformer output is analogue signal,
And analogue signal is to carry out long-distance transmissions.For existing Integrated Electronic System, varying signal gathering simulation is revolved
System and rotary transformer are likely in distant different tests place, and rotation varying signal acquisition system cannot be rotation
Transformator provides corresponding pumping signal, so cause to revolve varying signal acquisition system cannot normal acquisition to rotary transformer output
Rotation varying signal.
Based on this, present embodiment discloses a kind of signal handling equipment, is applied to revolve the gathering simulation process of varying signal, should
The structure chart of signal handling equipment is as shown in Fig. 2 including following functions module：
Signal acquisition module 11 connected with the signal output part of signal end to be collected, defeated with the signal of signal end to be received
Enter to hold connected signals revivification module 13, and the photoelectric conversion module 12 that can be connected, the opto-electronic conversion with external fiber
Module 12 is connected with the signal acquisition module 11 and the signals revivification module 13.
Wherein, the signal acquisition module 11, the mould that the signal output part for receiving the signal end to be collected is exported
Intend signal, and the analogue signal for receiving is converted into digital signal.The signal acquisition module 11 is specifically as follows analog/digital conversion
Circuit, or be ADC chip, ADC chip is preferably in the present embodiment.
The photoelectric conversion module 12, for the digital signal transmitting photo-signal for exporting the signal acquisition module 11,
The optical signal is exported to external fiber, also, the optical signal for receiving by external fiber is converted to digital signal.
Photoelectric conversion module 12 specifically includes optical-electrical converter and electrical to optical converter, and connected with signal acquisition module 11 is electro-optic conversion
Device, connected with external fiber is optical-electrical converter.
The signals revivification module 13, for the digital signal being converted to through the photoelectric conversion module 12 to be converted into
Analogue signal, to export to the signal input part of the signal end to be received.The signals revivification module 13 is D/A switch electricity
Road, or DAC chip, are preferably DAC chip in the present embodiment.
In order to reduce the error for causing because of signal acquisition module and signals revivification module, select in the present embodiment high-precision
ADC chip and DAC chip, such as high-precision ADC chip CS1242, CS1237, MAX1132 etc., high accuracy DAC chip
MX7534, TDA1541, TDA1547, CS4398 etc., the present embodiment is not limited to ADC chip and the specifically chosen of DAC chip
Fixed, as long as disclosure satisfy that the high-precision requirement of signal processing.
The signal handling equipment that the present embodiment is provided, by converting analog signals into digital signal, then by digital signal
Optical signal is converted to, is that the long-distance transmissions of analogue signal are laid a good foundation, convert optical signals to digital signal afterwards again, then
Digital signal is reduced to analogue signal, it is achieved that the long-distance transmissions of analogue signal.The signal handling equipment is applied to rotation
The gathering simulation process of varying signal, you can by pumping signal by fiber-optics remote transmission to positioned at longer-distance rotary transformer
The teletransmission of rotation varying signal is given corresponding rotation varying signal acquisition system, to realize revolving the remote collection of varying signal by place afterwards again
Emulation.
The structure chart of signal handling equipment disclosed in another embodiment of the present invention is as shown in figure 3, base in a upper embodiment
On plinth, trigger collection module 14 connected with the signal acquisition module 11 is increased, for according between the default triggered time
Every the triggering signal acquisition module is adopted to the signal of the analogue signal that the signal output part of different signal ends to be collected is exported
Collection work.
Specifically, the trigger collection module includes enumerator and trigger module, and the trigger collection module is by counting
When device count down to predetermined value, trigger module triggers signal output of the signal acquisition module to different signal ends to be collected
The signals collecting work of the analogue signal of end output.
For example, counter counts count to 5, and trigger module trigger acquisition module gathers first signal end to be collected
Analogue signal, counter counts count to 10, and trigger module trigger acquisition module gathers the mould of second signal end to be collected
Intend signal, by that analogy, until after having gathered the output signal of signal output part to be collected connected with signal acquisition module, then
Restart after zero setting to count.Or, the collection action of a signal acquisition module is often triggered, enumerator is with regard to opening after zero setting again
Begin to count.Which kind of specifically designed according to practical situation by designer using mode.
After increased trigger collection module 14, by the simulation for not gathering different signal end outputs to be collected in the same time
Signal, you can realize the collection of multichannel analog signals in a signal handling equipment, that is to say, that imitative in rotation varying signal collection
When applying during true, a signal handling equipment can gather multiple pumping signals, and multichannel pumping signal is transmitted respectively
To different rotary transformers, in the same manner, also the rotation varying signal of multiple rotary transformers output can be acquired, and multiplexing
To different rotation varying signal acquisition systems, the cost during rotation varying signal gathering simulation is reduced.
Additionally, the signal handling equipment also includes, with 13 connected delay compensation module 15 of the signals revivification module, use
After to processing through the signals revivification module 13, the analogue signal that obtains is processed, with compensate the analogue signal because of signal at
The signal errors that the time delay of reason process causes.
The long-distance transmissions of signal, and the transformation process of analog, D/A, optical electrical, electrical/optical etc. necessarily occurs letter
Number time delay, rotation varying signal gathering simulation system in, the time delay of signal can cause the deformation of final analogue signal, therefore need
Will be at rotary transformer end, carrying out compensation of delay to the pumping signal for receiving, likewise, being also required in rotation varying signal collection
In system, compensation of delay is carried out to the rotation varying signal for collecting, with the measurement for avoiding transmission delay and signal processing time delay from bringing
Error, improves the accuracy of rotation varying signal gathering simulation process.
The collection that signal handling equipment disclosed in above example is applied to revolve varying signal is imitated by another embodiment of the present invention
True process, that is, disclose a kind of rotation varying signal gathering simulation system, and its structure chart is as shown in figure 4, the rotation varying signal gathering simulation
System includes at least one rotary transformer, at least one rotation varying signal acquisition system, two letters as disclosed in above example
Number processing equipment.
In other words, the rotation varying signal gathering simulation system includes one group of rotary transformer, one group of rotation varying signal collection
System, two signal handling equipments, a rotary transformer is may include in one group of rotary transformer, be may also comprise multiple rotations and is become
Depressor, the present embodiment may include one in one group of rotation varying signal acquisition system as a example by comprising multiple rotary transformer 111-11m
Rotation varying signal acquisition system, may also comprise multiple rotation varying signal acquisition systems, to adopt comprising multiple rotation varying signals in the present embodiment
As a example by collecting system 121-12n, m=n, or m ≠ n can.
The signal acquisition module 131 of the first signal handling equipment 130 and multiple pumping signals for revolving varying signal acquisition systems
Output module 1111-11n1 is connected, the signals revivification module 133 of the first signal handling equipment 130 and the plurality of rotation varying signal
The rotation varying signal acquisition module 1112-11n2 of acquisition system is connected, the signal acquisition module 141 of secondary signal processing equipment 140
It is connected with the rotation varying signal outfan of multiple rotary transformer 121-12m, the signals revivification module of secondary signal processing equipment 140
143 are connected with the pumping signal receiving terminal of multiple rotary transformers, the photoelectric conversion module 132 of the first signal handling equipment and
The transmission of signal is carried out between binary signal processing equipment 142 by fiber optic Ethernet network.Multiple rotation transformations in the present embodiment
Device and multiple rotation varying signal acquisition systems may be located at same test place, it is also possible to scattered positioned at different test sites
The distance between multiple rotary transformers and multiple rotation varying signal acquisition systems, in the present embodiment, are not limited by area.Equally
, the present embodiment is not also limited with the distance between each rotary transformer and each rotation varying signal acquisition system to signal handling equipment
Fixed, preferably, the first signal handling equipment 130 is with multiple rotation varying signal acquisition systems 111-11n positioned at identical or closely located
Test on-site, secondary signal processing equipment 140 and multiple rotary transformer 121-12m are located at identical or closely located examination
Test on-site.
The signal acquisition module 131 of the first signal handling equipment 130 and multiple pumping signals for revolving varying signal acquisition systems
Output module 1111-11n1 is connected, and can gather the analogue signal of multiple different pumping signal outputs, first signal processing
The signals revivification module 133 of equipment 130 and the plurality of rotation varying signal acquisition module 1112-11n2 for revolving varying signal acquisition system
It is connected, reducible multiple rotation varying signals from different rotary transformator 121-12m.
The signal acquisition module 141 of the secondary signal processing equipment 140 is become with the rotation of multiple rotary transformer 121-12m
Signal output part is connected, and can gather the analogue signal of multiple different rotation varying signal outfan outputs, and the secondary signal is processed
The signals revivification module 143 of equipment 140 is connected with the pumping signal receiving terminal of multiple rotary transformers, reducible multiple different
Pumping signal.
Also include trigger collection module in first signal handling equipment 130 and the secondary signal processing equipment 140
134/144, for being spaced according to the default triggered time, the signal acquisition module for triggering corresponding signal handling equipment is adopted respectively
The analogue signal of the different pumping signal output of collection, or gather the analogue signal of different rotation varying signal outfan outputs.
That is, pass through trigger collection module, first signal handling equipment 130 connected with rotation varying signal acquisition system
Signal acquisition module can gather the multiple pumping signals for coming from different rotation varying signal acquisition systems 111-11n, Huo Zheyu
The signal acquisition module of the connected secondary signal processing equipment 140 of rotary transformer can be gathered and come from different rotary transformator
Multigroup rotation varying signal of 121-12m.
Concrete implementation mode refers to the description in signal handling equipment embodiment, trigger collection module including counting
Device and trigger module, when counter counts count to predetermined value, the collection of trigger module trigger acquisition module is from different rotation changes
The pumping signal of signal acquiring system, or gather the rotation varying signal for coming from different rotary transformator.Concrete acquisition mode ginseng
See above example, repeat no more here.
In the disclosed rotation varying signal gathering simulation system of the present embodiment, at the first signal handling equipment 130 and secondary signal
Also include delay compensation module 135/145 in reason equipment 140, the delay compensation module is connected with signals revivification module, is used for
The analogue signal for obtaining after the signals revivification resume module is processed, to compensate the analogue signal because of signal processing mistake
The signal errors that the time delay of journey causes.
Specifically, the delay compensation module of the first signal handling equipment 130 is used for the two-way rotation varying signal received by which
Processed, with compensate rotation varying signal export from corresponding rotary transformer after, through analog digital conversion, electro-optic conversion, optical fiber biography
Delay time error during after defeated, opto-electronic conversion, digital-to-analogue conversion.
The delay compensation module of secondary signal processing equipment 140 is used for processing the pumping signal which receives, with
After compensation incentive signal is exported from corresponding rotation varying signal acquisition system, through analog digital conversion, electro-optic conversion, fiber-optic transfer, photoelectricity
Delay time error during after conversion, digital-to-analogue conversion.
As described above in Example, the signal acquisition module in the present embodiment signal handling equipment adopts high-precision ADC
Chip, signals revivification module adopts high-precision DAC chip, to reduce because of signal acquisition module and signal in signal processing
The error that recovery module is brought, further ensures that the accuracy during the long-distance transmissions of rotation varying signal.
Signal handling equipment provided in an embodiment of the present invention, rotation varying signal gathering simulation system, by distant
In different test places, signal handling equipment is set, the pumping signal of analogue signal will be all by corresponding signal handling equipment
Digital signal is converted to rotation varying signal, afterwards the pumping signal of different tests place is come from by optical fiber transmission and rotation becomes letter
Number, again the pumping signal and rotation varying signal that have been converted into digital signal are reduced to analogue signal afterwards, original so as to solve
The pumping signal for being all analogue signal and rotation varying signal be unable to the problem of long-distance transmissions so that positioned at different tests place
The gathering simulation process of rotation varying signal becomes simple to operation.
Also, pass through trigger collection module, a signal handling equipment can correspond to multiple rotation varying signal acquisition systems or many
Individual rotary transformer, greatly reduces the cost of rotation varying signal gathering simulation system.Due to the effect of delay compensation module, reduce
Because of the accuracy of the time delay to simulation result of the processes such as long-distance transmissions, the precision of gathering simulation process is substantially increased.
Corresponding with rotation varying signal gathering simulation system embodiment, another embodiment of the present invention discloses a kind of rotation varying signal
Gathering simulation method, using varying signal gathering simulation system is revolved disclosed in above example, the collection for being applied to revolve varying signal is imitated
True process, the signaling diagram of the method is as shown in figure 5, with reference to Fig. 4 and Fig. 5, comprise the following steps：
Step S11：The collection rotation varying signal acquisition system of signal acquisition module 131 of first signal handling equipment 130
The output of pumping signal output module pumping signal, and the pumping signal for collecting is converted into the first digital signal.This swashs
The frequency of signal is encouraged generally in several KHz, preferably between 5KHZ-10KHZ.
Pumping signal Vr is the sinusoidal signal that the amplitude of a Differential Input determines, its form is：Vr=Vp × sin (ω
T), wherein, Vp is the amplitude of input signal, is a known constant, and ω is the angular frequency of pumping signal, is known constant, t
It it is the time, with the change of t, Vr numerical value is also being continually changing.
Step S12：First digital signal is turned by the photoelectric conversion module 132 of first signal handling equipment 130
After being changed to optical signal, the photoelectric conversion module 142 of secondary signal processing equipment 140 is sent to by fiber optic network.This enforcement
The transmission of signal is preferably carried out using fiber optic Ethernet in example so that the restriction to the transmission range of signal is less, and ether
The compatibility of the versatility host-host protocol of net is higher.It is of course also possible to select other fiber optic networks, the present embodiment was not done to this
Many restrictions.
Step S13：The photoelectric conversion module 142 of secondary signal processing equipment 140 is received by the first signal handling equipment
After the optical signal that 130 photoelectric conversion module 132 sends, the signal of telecommunication is converted into, and the signal of telecommunication is sent to described
The signals revivification module 143 of secondary signal processing equipment 140.
Step S14：The signals revivification module 143 of the secondary signal processing equipment 140 is received again and is converted to telecommunications
Number the first digital signal after, first digital signal is reduced into pumping signal, and the pumping signal is sent to corresponding
Rotary transformer, generates two-way by rotary transformer and revolves varying signal.
Step S15：After corresponding rotary transformer receives corresponding pumping signal, produce corresponding two-way rotation and become letter
Number, the signal acquisition module 141 of the secondary signal processing equipment 140 gathers the two-way rotation change letter of rotary transformer output
Number Va and Vb, and two-way rotation varying signal Va and Vb is respectively converted into the second digital signal and the 3rd digital signal.
The two-way rotation varying signal Va and Vb of rotary transformer output is also time dependent cosine and sine signal, and its form is divided
It is not：Va=Vs × sin (ω t) × cos (θ), Vb=Vs × sin (ω t) × sin (θ), Vs are the rotary transformer output
The amplitude of voltage, is known numeric value, and ω is the angular frequency of pumping signal, and θ is the corner of equipment under test rotor.
Step S16：The photoelectric conversion module 142 of the secondary signal processing equipment 140 by second digital signal and
After 3rd digital signal is converted to optical signal, the opto-electronic conversion of the first signal handling equipment 130 is sent to by fiber optic network
Module 132.
Step S17：The photoelectric conversion module 132 of the first signal handling equipment 130 receives secondary signal processing equipment 140
The optical signal that sends of photoelectric conversion module 143 after, the optical signal is converted to the signal of telecommunication, and the signal of telecommunication is sent to described
The signals revivification module 133 of the first signal handling equipment 130.
Step S18：The signals revivification module 133 of first signal handling equipment 130 is received again and is converted to telecommunications
Number second digital signal and the 3rd digital signal after, second digital signal and the 3rd digital signal are reduced to institute
The two-way rotation varying signal of rotary transformer output is stated, and passes through fiber optic network, two-way rotation varying signal is sent to corresponding
Rotation varying signal acquisition system is processed accordingly.
By above step S11-S16, it is achieved that pumping signal and two-way revolve the long-distance transmissions of varying signal.
It should be noted that due to the time delay of signals transmission, revolving varying signal acquisition system in step s 16 and receiving
Reduction after two-way rotation varying signal with step S14 rotary transformer output two-way rotation varying signal not identical
?.
For the as far as possible less signal lag error for causing because of signal processing also transmitting procedure, another embodiment of the present invention public affairs
The rotation varying signal gathering simulation method that opens increased the compensation of delay function of signal.
Compared to a upper embodiment, the present embodiment exists, and connects in the signals revivification module 133 of the first signal handling equipment 130
Second digital signal and the 3rd digital signal is received, second digital signal and the 3rd digital signal is reduced to described
After the two-way rotation varying signal of rotary transformer output, the compensation of delay of the rotation varying signal after increased for reduction, specially：
135 pairs of signals revivification through first signal handling equipment 130 of delay compensation module by the first signal handling equipment 130
Two-way rotation varying signal after module 133 is reduced is processed, defeated to compensate two-way rotation varying signal spinning transformator
After going out, until being transferred to the signal errors that 135 process of the delay compensation module causes because of time delay.Time delay for rotation varying signal
Compensation, can be realized by way of updating phase angle, and concrete compensation way similarly to the prior art, is repeated no more here.
And for pumping signal, although long-distance transmissions also occur time delay, as pumping signal is a phase
To the sine and cosine curve for determining, even if there is time delay, but compensation of delay need not be carried out.
Additionally, in the disclosed rotation varying signal gathering simulation method of another embodiment of the present invention, each signal handling equipment can
Gather multiple pumping signals, or the rotation varying signal of multiple rotary transformers output.That is, each in the first signal handling equipment
The signal gathering unit of signal handling equipment gathers the analogue signal of multiple different pumping signal outputs.At the secondary signal
The signal gathering unit of each signal handling equipment in reason equipment gathers the mould of multiple different rotation varying signal outfan outputs
Intend signal.Specific acquisition mode refers to the description of above example, realizes separate sources using enumerator and trigger module
The acquisition time of signal.
Wherein, the pumping signal output of the signal acquisition module collection rotation varying signal acquisition system of the first signal handling equipment
Pumping signal be specially：
For any one signal acquisition module in first signal handling equipment, according between the default triggered time
Every triggering the pumping signals output that the signal acquisition module gathers different rotation varying signal acquisition systems successively in different time sections
Pumping signal.
The signal acquisition module of the secondary signal processing equipment receives the two-way rotation of the rotary transformer output and becomes letter
Number be specially：
For any one signal acquisition module in the secondary signal processing equipment, according between the default triggered time
Every triggering the two-way rotation varying signal that the signal acquisition module gathers different rotary transformers outputs successively in different time sections.
Wherein, any number that described in the present embodiment, default triggered time interval can be within 1-9 microsecond.Due to
The frequency of pumping signal and rotation varying signal is all in the range of several KHz, so the time delay of a few microseconds adopting for rotation varying signal
Can affect very little for collection, be negligible.
It should be noted that title identical Elementary Function is also identical between each embodiment of the present invention, and change progressive
Embodiment can be combined with above-mentioned multiple related embodiment respectively, but is only illustrated on the basis of a upper embodiment during explanation
Explanation.
It will be understood by those skilled in the art that can be represented using any one in many different techniques and technology
Information, message and signal.For example, the message mentioned in described above, information may be expressed as voltage, electric current, electromagnetic wave,
Magnetic field or magnetic particle, light field or more combination in any.
Professional further appreciates that, in conjunction with the unit of each example of the embodiments described herein description
And algorithm steps, being implemented in combination in electronic hardware or electronic hardware and computer software, in order to clearly demonstrate
The interchangeability of hardware and software, generally describes composition and the step of each example in the above description according to function
Suddenly.These functions are executed with hardware or software mode actually, the application-specific depending on technical scheme and design constraint bar
Part.Professional and technical personnel can use different methods to realize described function to each specific application, but this
Realize it is not considered that beyond the scope of this invention.
The step of method for describing in conjunction with the embodiments described herein or algorithm, directly can be implemented with hardware, or
Person by hardware and the software module of computing device combination implementing.Software module can be placed in random access memory (RAM), interior
Deposit, read only memory (ROM), electrically programmable ROM, electrically erasable ROM, depositor, hard disk, moveable magnetic disc, CD-
In any other form of storage medium well known in ROM or technical field.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or use the present invention.
Multiple modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized without departing from the spirit or scope of the present invention in other embodiments.Therefore, the present invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope for causing.
Claims (10)
1. a kind of signal handling equipment, it is characterised in that include that signal connected with the signal output part of signal end to be collected is adopted
Collection module, signals revivification module connected with the signal input part of signal end to be received, and can be connected with external fiber
Photoelectric conversion module, the photoelectric conversion module is connected with the signal acquisition module and the signals revivification module, wherein,
The signal acquisition module, the analogue signal that the signal output part for receiving the signal end to be collected is exported, and will
The analogue signal for receiving is converted into digital signal；
The photoelectric conversion module, for the digital signal transmitting photo-signal for exporting the signal acquisition module, will be described
Optical signal is exported to external fiber, also, the optical signal for being received by external fiber is converted to digital signal；
The signals revivification module, for being converted into simulation letter by the digital signal being converted to through the photoelectric conversion module
Number, to export to the signal input part of the signal end to be received.
2. signal handling equipment according to claim 1, it is characterised in that also include, with the signal acquisition module phase
Trigger collection module even, for being spaced according to the default triggered time, triggers the signal acquisition module and waits to adopt to different
The signals collecting work of the analogue signal of the signal output part output of collection signal end.
3. signal handling equipment according to claim 2, it is characterised in that the trigger collection module include enumerator and
Trigger module, when the trigger collection module counts to predetermined value by counter counts, trigger module triggers the signals collecting
Module is worked to the signals collecting of the analogue signal that the signal output part of different signal ends to be collected is exported.
4. signal handling equipment according to claim 1, it is characterised in that also include, with the signals revivification module phase
Delay compensation module even, is processed for the analogue signal to obtaining after the signals revivification resume module, with compensation
The signal errors that the analogue signal causes because of the time delay of signal processing.
5. a kind of rotation varying signal gathering simulation system, is applied to revolve the gathering simulation process of varying signal, it is characterised in that include to
A few rotary transformer, at least one rotation varying signal acquisition system, at two signals as described in any one of claim 1-4
Reason equipment, wherein,
The signal acquisition module of the first signal handling equipment and multiple pumping signal output module phases for revolving varying signal acquisition systems
Even, the signals revivification module of the first signal handling equipment and the plurality of rotation varying signal acquisition module for revolving varying signal acquisition system
It is connected, the signal acquisition module of secondary signal processing equipment is connected with the rotation varying signal outfan of multiple rotary transformers, second
The signals revivification module of signal handling equipment is connected with the pumping signal receiving terminal of the plurality of rotary transformer, at two signals
The transmission of signal is carried out between the photoelectric conversion module of reason equipment by fiber optic Ethernet network.
6. according to claim 5 rotation varying signal gathering simulation system, it is characterised in that first signal handling equipment
Signal acquisition module be connected with the pumping signal output modules of multiple rotation varying signal acquisition systems, can gather multiple different sharp
Encourage the analogue signal of signal output, the signals revivification module of first signal handling equipment and the plurality of rotation varying signal collection
The rotation varying signal acquisition module of system is connected, reducible multiple different rotation varying signals；
The signal acquisition module of the secondary signal processing equipment is connected with the rotation varying signal outfan of multiple rotary transformers, can
Gather the analogue signal of multiple different rotation varying signal outfan outputs, the signals revivification module of the secondary signal processing equipment
It is connected with the pumping signal receiving terminal of multiple rotary transformers, reducible multiple different pumping signals；
Also include trigger collection module in first signal handling equipment and the secondary signal processing equipment, for basis
Default triggered time interval, the signal acquisition module for triggering corresponding signal handling equipment gathers different pumping signals respectively
The analogue signal of output, or gather the analogue signal of different rotation varying signal outfan outputs.
7. a kind of rotation varying signal gathering simulation method, using the rotation varying signal gathering simulation system described in claim 5, is applied to
The gathering simulation process of rotation varying signal, it is characterised in that include：
What the pumping signal of the signal acquisition module collection rotation varying signal acquisition system of first signal handling equipment was exported swashs
Signal is encouraged, and the pumping signal for collecting is converted into the first digital signal；
The photoelectric conversion module of first signal handling equipment is converted to first digital signal after optical signal, by light
Fibre web network is sent to the photoelectric conversion module of secondary signal processing equipment；
The photoelectric conversion module of secondary signal processing equipment is received and is sent by the photoelectric conversion module of the first signal handling equipment
Optical signal after, be converted into the signal of telecommunication of the first digital signal, and the signal of telecommunication be sent at the secondary signal
The signals revivification module of reason equipment；
After the signals revivification module of the secondary signal processing equipment receives the first digital signal for being converted to again the signal of telecommunication,
First digital signal is reduced into pumping signal, and the pumping signal is sent to corresponding rotary transformer, become by rotation
Depressor generates two-way rotation varying signal；
The signal acquisition module of the secondary signal processing equipment gathers the two-way rotation varying signal of the rotary transformer output, and
Two-way rotation varying signal is respectively converted into the second digital signal and the 3rd digital signal；
Second digital signal and the 3rd digital signal are converted to by the photoelectric conversion module of the secondary signal processing equipment
After optical signal, the photoelectric conversion module of the first signal handling equipment is sent to by fiber optic network；
The photoelectric conversion module of the first signal handling equipment receives what the photoelectric conversion module of secondary signal processing equipment sent
The optical signal, after optical signal, is converted to the signal of telecommunication of the second digital signal and the 3rd digital signal, and the signal of telecommunication is sent
Signals revivification module to first signal handling equipment；
The signals revivification module of first signal handling equipment receives the described second numeral letter for being converted to again the signal of telecommunication
Number and the 3rd digital signal after, by second digital signal and the 3rd digital signal be reduced to the rotary transformer output
Two-way revolves varying signal, and passes through fiber optic network, two-way rotation varying signal is sent to corresponding rotation varying signal acquisition system and is entered
Row is corresponding to be processed.
8. according to claim 7 rotation varying signal gathering simulation method, it is characterised in that first signal handling equipment
The multiple different pumping signals outputs of signal gathering unit collection analogue signal；The signal of the secondary signal processing equipment
The analogue signal of the multiple different rotation varying signal outfan outputs of collecting unit collection；
What the pumping signal of the signal acquisition module collection rotation varying signal acquisition system of first signal handling equipment was exported swashs
Encourage signal to be specially：
For the signal acquisition module of first signal handling equipment, it is spaced according to the default triggered time, triggers the signal
Acquisition module gathers the pumping signal of the pumping signal output of different rotation varying signal acquisition systems successively in different time sections；
The signal acquisition module of the secondary signal processing equipment receives the two-way rotation varying signal tool of the rotary transformer output
Body is：
For the signal acquisition module of the secondary signal processing equipment, it is spaced according to the default triggered time, triggers the signal
Acquisition module gathers the two-way rotation varying signal of different rotary transformer outputs successively in different time sections.
9. according to claim 8 rotation varying signal gathering simulation method, it is characterised in that between the default triggered time
Within being interposed between -9 microsecond of 1 microsecond.
10. according to claim 8 rotation varying signal gathering simulation method, it is characterised in that first signal processing sets
After standby signals revivification module receives second digital signal and the 3rd digital signal, by second digital signal and
After three digital signals are reduced to the two-way rotation varying signal of rotary transformer output, also include：
By the signal handling equipment delay compensation module to the signals revivification module through first signal handling equipment
Two-way rotation varying signal after reduction is processed, to compensate after two-way rotation varying signal spinning transformator output, directly
To being transferred to the signal errors that the compensating module process causes because of time delay.
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