CN109446118A - Expansible multi-modal chromatographic imaging system based on cpci bus - Google Patents
Expansible multi-modal chromatographic imaging system based on cpci bus Download PDFInfo
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- CN109446118A CN109446118A CN201811071399.7A CN201811071399A CN109446118A CN 109446118 A CN109446118 A CN 109446118A CN 201811071399 A CN201811071399 A CN 201811071399A CN 109446118 A CN109446118 A CN 109446118A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/10—Program control for peripheral devices
- G06F13/102—Program control for peripheral devices where the programme performs an interfacing function, e.g. device driver
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/40—Bus structure
- G06F13/4004—Coupling between buses
- G06F13/4022—Coupling between buses using switching circuits, e.g. switching matrix, connection or expansion network
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/40—Bus structure
- G06F13/4063—Device-to-bus coupling
- G06F13/4068—Electrical coupling
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T1/00—General purpose image data processing
- G06T1/20—Processor architectures; Processor configuration, e.g. pipelining
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T11/00—2D [Two Dimensional] image generation
- G06T11/003—Reconstruction from projections, e.g. tomography
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2213/00—Indexing scheme relating to interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F2213/0024—Peripheral component interconnect [PCI]
Abstract
The present invention relates to a kind of expansible multi-modal chromatographic imaging system based on cpci bus, it mainly includes the Multi-mode control bus based on CPCI, main control module and each single mode tomography module, wherein, Multi-mode control bus based on CPCI undertakes the data communication function of different single mode tomography intermodules, coordinates the acquisition speed and timing of different single mode tomography modules；Multi-mode control bus based on CPCI realizes real-time control output and the Real-time Feedback of system mode；Condition line and order line always occur in pairs；The effect of multi-modal main control chip is, level value on reading state line, the program woven according to chip interior, instruction of starting to work is sent to each mode by order line, coordinate each single mode tomography module working sequence, it is realized by finite state machine, is successively carried out by preset state transition graph；Each single mode tomography module has unified mode communication interface, includes N bar state line, N order line and one group of data line in the case where system has N number of mode.
Description
Technical field
The invention belongs to field of measuring technique, be related to a kind of multi-modal chromatography that the mode based on cpci bus is expansible at
As system, it can be achieved that the independent assortment of different chromatography image modes and extension.The present invention is to retouch with multi-modal chromatographic imaging system
Object is stated, it is not limited to the application, a variety of sensed-modes present in other industrial process and chemical reaction coordinate work
In the systems such as measurement, the control of work, main control module of the invention and control method are still applicable in.
Technical background
Chromatography imaging technique has the characteristics that undisturbed, visualization, it can be achieved that Complex Flows dielectric distribution parameter detecting,
The test of multiphase flow process visualization and monitoring of the industrial circles such as petroleum, chemical industry, metallurgy, power, the energy, and in biology, doctor
The fields such as treatment have a wide range of applications.Tomography basic principle is, using space sensitive sensor array, to sensitivity field
Distribution parameter is detected, and the two dimension or distributed in three dimensions information that can describe tested region are obtained.
Common tomography mode includes electricity, ultrasound and ray etc., and every kind of mode has its specific physics sensitive
Parameter.For complicated measured medium, tend not to comprehensively react actual conditions, Chang Cai using a kind of measurement method of mode
With multi-modal fusion measurement method.Such as the tomography for oil-gas-water three-phase flow, frequently with electricity and ultrasonic both modalities which
The chromatography imaging method of fusion.Electricity from ultrasound as two kinds of process tomographic imaging technologies based on different physical principles, two kinds
The scope of application and imaging characteristics of technology are not quite similar, and ultrasonic field has hard field characteristic, more advantageous to the identification of phase interface,
And electricity field is then soft field, it is higher for the position-sensitivity close to electrode.Therefore, ultrasound and the field distribution of electricity sensitivity have one
Fixed complementarity.It is excellent that electricity and ultrasonic sensor all have low cost, good, radiationless, the non-disturbance of safety, response quickly etc.
Point has very big potentiality in terms of the online visualization and parameter measurement of multiphase flow.
Existing multi-modal chromatographic imaging system mostly uses fixed modality combinations, and this system has several drawbacks in that.First is that
It may be only available for specific measured medium, once measured medium changes or the sensitivity field distribution parameter of measured medium occurs
Variation, original multimodal systems can can not be applicable in.Second is that mode cannot achieve appointing between flexible expansion and multiple modalities
Meaning combination can only redesign multi-modal chromatographic imaging system if it is desired to obtaining more multi-modal information.
Summary of the invention
The multi-modal tomography that the object of the present invention is to provide a kind of mode based on cpci bus is expansible, can combine
System so that can not interfere with each other between different modalities, and is continuously measured according to certain working sequence.Skill of the invention
Art scheme is as follows:
A kind of expansible multi-modal chromatographic imaging system based on cpci bus, mainly includes the multimode based on CPCI
State control bus, main control module and each single mode tomography module, wherein
The Multi-mode control bus based on CPCI undertakes the data communication function of different single mode tomography intermodules
Can, coordinate the acquisition speed and timing of different single mode tomography modules；The main control module passes through based on CPCI's
Multi-mode control bus is connected with each single mode tomography module, the main control module include multi-modal main control chip and its
Support circuit and multimodal communications interface；
The Multi-mode control bus based on CPCI accounts for the multi-modal chromatographic imaging system comprising N number of mode
Cpci bus quantity is at least 2N item, and includes N order line and N bar state line, realizes the real-time control of system mode
Output and Real-time Feedback, described instruction line are sent out for the multi-modal main control chip to different single mode tomography modules
Start-up operation is sent to instruct, the condition line is sent out for different single mode tomography modules to the multi-modal main control chip
Send current working status；
Condition line and order line always occur in pairs, on main control module each pair of condition line and the corresponding interface of order line all with
Whole communication interfaces of whole single mode image-forming modules are connected, although multiple connecting nodes of same condition line or order line
It is connected to the control chip of multi-modal main control chip and multiple single mode tomography modules, but each mode when in use simultaneously
Condition line and order line be all it is respectively exclusive, i.e., set which which mode occupies more than two according to main control chip FPGA program
Model control bus run；
Multi-modal main control chip, chip type are fpga chip, and the effect of main control chip is the level on reading state line
Value, the program woven according to chip interior send instruction of starting to work to each mode by order line, coordinate each list
Mode tomography module working sequence, is realized by finite state machine, successively carries out: having by preset state transition graph
Limit state machine reads the condition line of different modalities in real time, and by the storage of its level value into external input register, as limited
The current external of state machine inputs；When the program is started, current state is initialized, and current state mark is stored to state and is posted
In storage；When FPGA clock refreshes, finite state machine will read the electricity stored in external input register and status register
Flat numerical value, the program woven according to chip interior, the i.e. requirement of timing transition diagram determine subsequent time, and each mode refers to
The level value size for enabling line that should export；
Each single mode tomography module has unified mode communication interface, has the case where N number of mode in system
Under, it include N bar state line, N order line and one group of data line, data line number are determined by mode itself, wherein N bar state line
It is connected respectively with the N bar state line of Multi-mode control bus and N order line with N order line, data line is used for each single mode
State layer analyses image-forming module and transmits measurement data to host computer, it is characterized in that being connected directly with host computer, has several data bit,
It transmits data format and meaning, and by each single mode tomography module definition, data acquisition rate is by each single mode state layer
The clock rate for analysing image-forming module determines.
Beneficial effects of the present invention and advantage are as follows:
1, a variety of single mode tomography modules use unified multimodal communications interface and Multi-mode control bus, are convenient for
Coordination of the main control module for each mode；
2, a variety of single mode tomography modules can freely be increased, reduce or be combined with spread, i.e. mode；
3, use cpci bus as Multi-mode control bus, do not need that control route is additionally arranged, save overhead.
4, main control chip uses FPGA, and system flexibility is high, when Alter Mode scheme, can pass through the new of downloading main control chip
Program is to adapt to new multi-modal work in combination scheme；
5, low to the improvement cost of single mode chromatographic imaging system, it is only necessary to it is total to increase Multi-mode control on original system
Line and the corresponding interface.
Detailed description of the invention
The selected embodiment of the present invention is described with the following figure, is exemplary diagram and non exhaustive or restricted, in which:
Fig. 1 is the overall system architecture figure of one embodiment of the present of invention；Wherein, 0- Multi-mode control bus, 1- multimode
State main control module, 2- data line
Fig. 2 is the connection type structure chart of apparatus of the present invention Multi-mode control bus, wherein the multi-modal main control module of 1-；3-
Order line；4- condition line；5- connection node；6- multimodal communications interface；
Fig. 3 apparatus of the present invention control program timing diagram；
Specific embodiment
It is described in detail below to manufacture and operate step of the invention, it is intended to be described as the embodiment of the present invention, be not
The unique forms that can be manufactured or be utilized can realize that the embodiment of identical function should also be included in the scope of the present invention to other
It is interior.A variety of different modalities in the present invention include electricity ultrasound etc., both can be used simultaneously several electricity or ultrasonic measurement mode.
Below with reference to the instruction sheet embodiment that the present invention will be described in detail.
Fig. 1 describes the overall system architecture figure of apparatus of the present invention, includes the multi-modal main control module of 1- and each independent mould
Morphotype block.The wherein multi-modal main control module of 1-, and multi-modal main control chip, 0- Multi-mode control bus and multimode can be divided into
State communication interface, in the present embodiment, mode 1, mode 2 and mode 3 respectively with ERT, ECT and UPT for.Multi-modal master control core
Piece is located on individual one piece of main control board, multimodal communications interface is housed, interface one end passes through multi-modal control on circuit board
Bus processed is connected on multi-modal main control chip, and the other end can be attached with the external circuit board.In the present embodiment, multimode
For state communication interface by taking the J3 interface of CPCI standard as an example, main control board can be real by the two-way contact pin of CPCI case back plate
Now be located at front panel each mode chromatographic imaging system connection.2- data line is given for each mode transmission measurement data
Host computer
Fig. 2 is the connection type structure chart of apparatus of the present invention Multi-mode control bus.
Multi-modal main control module is connected to the main control chip of each mode as independent module.Functionally, master control mould
Block is connected by independent condition line and order line respectively with each measurement module, and every bar state line or order line each account for
With 1 data channel, as soon as every increase mode, increase by 2 data channels more.If total mode number is N, due to each mode
Two data channels are occupied, then fpga chip needs the pin for the data channel for keeping for multi-modal communication to be no less than 2N, and more
The data channel number that mode communication interface is included is no less than 2N.In system structure, two control routes of each mode are passed through
Multimodal communications interface is led to by multi-modal main control chip FPGA pin, is re-introduced into each independent chromatographic imaging system.
Condition line and order line always occur in pairs, on main control module each pair of condition line and the corresponding interface of order line all with
The communication interface of whole single mode image-forming modules is connected, although same condition line or order line both ends are connected to multimode simultaneously
The control chip of state main control chip and multiple single mode tomography modules, but each modal state line and order line when in use
All be it is respectively exclusive, i.e., set which mode occupies which two Multi-mode control bus is logical according to main control chip FPGA program
The 3- order line and 4- condition line of mode 1 and the 3- order line of other mode and 4- condition line are to interconnect in road, such as Fig. 2
, but this two lines only has control action to the main control chip of modality-specific, i.e., and it is effective to mode 1 in the present embodiment, other
Mode can receive signal, and in vain.In the present embodiment, the used Multi-mode control bus of mode N occupies
Channel be, order line occupy the 2N-1 articles channel, condition line occupy the 2N articles channel.
Multi-mode control bus always includes the pairs of condition line and order line of multiple groups, corresponding a pair of of the state of each mode
Line and order line.For the chromatographic imaging system of expansible mode, the scalability of mode is embodied in Multi-mode control bus
In scalability.The step of extending a new mode can be divided into: step 1, and main control module FPGA program enables what a pair was reserved
The interface of condition line and order line；Step 2, by single mode tomography module be added to it is existing extension mode chromatography at
As in system, that is, being correspondingly connected with corresponding condition line and order line；Step 3 modifies the FPGA journey of single mode tomography module
Sequence allows to receive the control of main control module fpga chip, modifies main control module FPGA program, makes to wrap in its state transition graph
Relevant operating conditions containing newly-increased mode.
Fig. 3 apparatus of the present invention control program timing diagram.The function of order line is sent out from main control module to each measurement module
It starts to work out instruction, default value is low level 0, and rising edge is effective, and the function of condition line is from measurement module to main control module
Current working status is fed back, does not work currently as low level 0, is currently operating as high level 1.
The present embodiment is by taking three mode as an example, mode 1, mode 2 and mode 3 respectively with ERT, ECT and UPT for, according to
The working principle of three mode, work-based logic are that mode 1 and mode 2 work alternatively, 3 continuous work of mode.Its basic step
It is: step 1, when the main control module powers on, first by described instruction line, to being connected to mode 1 and the communication of mode 3 connects
Mouth issues a pulse triggering signal；Step 2 after mode 3 receives command signal, starts to continue working；Step 3, mode 1 connect
After receiving command signal, that is, a complete measurement period of starting to work passes through the condition line, Xiang Suoshu during operation
Multi-modal main control chip persistently sends the status signal of high level, until a complete measurement end cycle restores low level；Step
Rapid four, after main control module receives the low level signal of 1 condition line of mode sending, judge that mode 1 has worked a cycle, this
When main control module to 2 order line of mode, issue a pulse triggering signal；Step 5 is opened after mode 2 receives command signal
One complete measurement period of beginning work, during operation, by the condition line of the mode 2, to the multi-modal master control core
Piece persistently sends the status signal of high level, until a complete measurement end cycle restores low level；Step 6, main control module
After the low level signal for receiving the sending of 2 condition line of mode, judge that mode 2 has worked a cycle, at this time main control module to
1 order line of mode issues a pulse triggering signal；Step 7 repeats step 3 to six, and completion mode 1 replaces work with mode 2
Make.
Claims (1)
1. a kind of expansible multi-modal chromatographic imaging system based on cpci bus, mainly includes based on the multi-modal of CPCI
Control bus, main control module and each single mode tomography module.Wherein,
The Multi-mode control bus based on CPCI undertakes the data communication function of different single mode tomography intermodules, association
Adjust the acquisition speed and timing of different single mode tomography modules；The main control module passes through based on the multi-modal of CPCI
Control bus is connected with each single mode tomography module, and the main control module includes multi-modal main control chip and its mating electricity
Road and multimodal communications interface；
The Multi-mode control bus based on CPCI occupies the multi-modal chromatographic imaging system comprising N number of mode
Cpci bus quantity is at least 2N item, and includes N order line and N bar state line, realizes the real-time control output of system mode
And Real-time Feedback, described instruction line are opened for the multi-modal main control chip to different single mode tomography module transmissions
Beginning work order, the condition line are worked as different single mode tomography modules to the multi-modal main control chip transmission
Preceding working condition；
Condition line and order line always occur in pairs, on main control module each pair of condition line and the corresponding interface of order line all with whole
Single mode image-forming module whole communication interfaces be connected, although multiple connecting nodes of same condition line or order line are simultaneously
It is connected to the control chip of multi-modal main control chip and multiple single mode tomography modules, but each modal state when in use
Line and order line be all it is respectively exclusive, i.e., set according to main control chip FPGA program which mode occupy which two it is multi-modal
Control bus channel；
Multi-modal main control chip, chip type are fpga chip, and the effect of main control chip is the level value on reading state line,
The program woven according to chip interior sends instruction of starting to work to each mode by order line, coordinates each single mode
State layer analyses image-forming module working sequence, is realized, is successively carried out by preset state transition graph: limited by finite state machine
State machine reads the condition line of different modalities in real time, and by the storage of its level value into external input register, as limited shape
The current external of state machine inputs；When the program is started, current state is initialized, and current state mark is stored to Status register
In device；When FPGA clock refreshes, finite state machine will read the level stored in external input register and status register
Numerical value, the program woven according to chip interior, the i.e. requirement of timing transition diagram determine subsequent time, each mode instruction
The level value size that line should export；
Each single mode tomography module has unified mode communication interface, in the case where system has N number of mode, packet
The line of bar state containing N, N order line and one group of data line, data line number determine by mode itself, wherein N bar state line and N item
Order line is connected with the N bar state line of Multi-mode control bus and N order line respectively, and data line is chromatographed for each single mode
Image-forming module transmits measurement data to host computer, it is characterized in that being connected directly with host computer, has several data bit, transmission
Data format and meaning, by each single mode tomography module definition, data acquisition rate is by each single mode tomography
The clock rate of module determines.
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| CN201811071399.7A CN109446118B (en) | 2018-09-14 | 2018-09-14 | Extensible multi-modal tomography system based on CPCI bus |
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| US20140014828A1 (en) * | 2011-04-05 | 2014-01-16 | Koninklijke Philips N.V. | Adaptive calibration for tomographic imaging systems |
| US20160287211A1 (en) * | 2015-03-31 | 2016-10-06 | Ralph S. DaCosta | System and Method for Multi-Modal in Vivo Imaging |
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2018
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|---|---|---|---|---|
| US20040122304A1 (en) * | 2002-12-18 | 2004-06-24 | Barbara Ann Karmanos Cancer Institute | Computerized ultrasound risk evaluation system |
| US20140014828A1 (en) * | 2011-04-05 | 2014-01-16 | Koninklijke Philips N.V. | Adaptive calibration for tomographic imaging systems |
| CN102764138A (en) * | 2012-08-02 | 2012-11-07 | 北京大学 | Multi-mode little animal molecular image imaging device and imaging method |
| CN103048294A (en) * | 2012-12-21 | 2013-04-17 | 江西科技师范大学 | Integrated multi-mode imaging method fusing ultrasonic imaging, photoacoustic imaging and optical coherence tomography and system employing same |
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