CN105487997A - Data collection device, data collection system and method - Google Patents
Data collection device, data collection system and method Download PDFInfo
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- CN105487997A CN105487997A CN201510850028.9A CN201510850028A CN105487997A CN 105487997 A CN105487997 A CN 105487997A CN 201510850028 A CN201510850028 A CN 201510850028A CN 105487997 A CN105487997 A CN 105487997A
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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
- G06F13/382—Information transfer, e.g. on bus using universal interface adapter
- G06F13/385—Information transfer, e.g. on bus using universal interface adapter for adaptation of a particular data processing system to different peripheral devices
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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
- G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
- G06F13/4282—Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus
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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
- G06F2213/0002—Serial port, e.g. RS232C
-
- 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
- G06F2213/38—Universal adapter
- G06F2213/3852—Converter between protocols
Abstract
The invention discloses a data collection device for collecting data according to a received instruction, comprising N analog boards, wherein the N analog boards are in serial connection, N is a natural number more than or equal to 1, the analog boards are used for collecting data; the device also comprises a digital board; the digital board is connected to the first analog board in the N analog boards and is used for forwarding the received instruction to the N analog boards and uploading the data collected by the N analog boards according to the instruction; the first analog board in the N analog boards receives the instruction forwarded by the digital board and successively forwards the instruction to the next stage analog board; the N analog boards collect data according to the received instruction and successively forward the data to the upper stage analog board; and the data are sent to the digital board through the first analog board in the N analog boards. The invention also provides a data collection system and a method thereof. The invention is advantaged by strong anti-interference capability, strong real time data transmission capability, high data transmission bandwidth, convenient fault diagnosis and high reliability.
Description
Technical field
The present invention relates to data collecting field, more specifically, relate to data collector, data acquisition system (DAS) and method.
Background technology
The industrial automation that X ray detects transfers to host computer by after the industrial camera photographic subjects object of machine vision, computing machine makes corresponding judgement after extracting the characteristic information of picture according to the special image handling procedure of setting, and then corresponding action made by control output module.The industrial camera detected is exactly a signal pickup assembly, adopts such device can complete the Detection task in the not visible field of naked eyes by detector in X ray Non-Destructive Testing, has high resolving power and picking rate faster; There is unified testing standard to batch testing, be convenient to standardized management, product quality and reliability are provided; Distinguish certified products simultaneously and contain defective product, be applied to those high-risk working environments being not suitable for manual work and the implacable occasion of artificial vision, as fields such as field of industry detection, agricultural product sorting and field of food detection, servo-drive system and medical applications.
The principle of work of X ray data acquisition system (DAS) is that X ray is converted into faint current signal by detector, voltage signal is become again by integrator, then use analog-digital converter (ADC) to carry out digitizing to this voltage signal, obtain the raw value of measured signal.It is 1 row that all numerical value adopted by synchronization show on main frame with the form of gray-scale map, along with the motion of testee, main frame will form a continuous print image, and reflects the information such as material, shape of testee.
For line detector, general length is several centimetres to several meters, pixel is 2.5mm/1.6mm/0.8mm/0.4mm/0.2mm/0.1mm/0.05mm, along with the reduction of pixel, pixel is multiplied, and the precision of analog-digital converter (ADC) is 12 or 16, and sampling rate hundreds of hertz is not to a few KHz etc., the maximum data amount can reach hundreds of Mbps, even goes up Gbps.Wherein, sampling rate is defined as per secondly to be extracted and forms the number of samples of discrete signal from continuous signal, and it represents with hertz (Hz).The inverse of sample frequency is sampling period or sampling time, and it is the time interval between sampling.When detection is larger, sampling rate is higher, the data of collection there will be the problem of poor real and poor reliability and the part broken down in very difficult judgement system in the process of transmission.
Existing X ray data acquisition system (DAS) comprises digiboard 110, analog board 120 and main frame 130, wherein, analog board 120 comprises N number of analog board 121-12n, wherein, can adopt centralized emulation bus or Parallel Simulation bus transfer signal between digiboard 110 and N number of analog board 121-12n.
As shown in Figure 1, this data acquisition system (DAS) adopts centralized emulation bus, analog-digital converter (ADC) is positioned on digiboard 110, and the data bus between digiboard 110 and N number of analog board 121-12n is shared emulation bus, does not limit the quantity of analog board.Although decrease the quantity of analog-digital converter (ADC), cost is low, and emulation bus is easily subject to external interference, analog board timesharing exports data, image has certain inclination, and system scale is limited to emulation bus bandwidth, fault diagnosis difficulty.
As shown in Figure 2, this data acquisition system (DAS) adopts Parallel Simulation bus, wherein, the corresponding analog-digital converter (ADC) of each analog board, i.e. N number of analog board 121-12n corresponding N number of analog-digital converter (ADC) (111-11n), and being all positioned on digiboard 110, the output of each analog board is independently emulation bus.Although can support higher sampling rate, emulation bus easily delivers to external interference, and connector size is too large, localization of fault difficulty.
Summary of the invention
In view of this, the invention provides a kind of data collector, data acquisition system (DAS) and collecting method.
According to an aspect of the present invention, provide a kind of data collector, for according to the instruction acquisition data that receive, comprising: N number of analog board, described N number of analog board is sequentially connected in series, N be more than or equal to 1 natural number, for image data; Digiboard, is connected with the 1st analog board in described N number of analog board, for the instruction received is transmitted to described N number of analog board, and by data upload that described N number of analog board arrives according to instruction acquisition; Wherein, the 1st analog board in described N number of analog board receives the instruction that described digiboard forwards, and be forwarded to next stage analog board successively, described N number of analog board is according to the instruction acquisition data received, and be forwarded to upper level analog board successively, be sent to described digiboard via the analog board of the 1st in described N number of analog board.
Preferably, described digiboard is also connected with N number of analog board in described N number of analog board, in described N number of analog board, N number of analog board receives the instruction that described digiboard forwards, and be forwarded to upper level analog board successively, described N number of analog board is according to the data of the instruction acquisition received, and be forwarded to next stage analog board successively, be sent to described digiboard via the N number of analog board in described N number of analog board.
Preferably, described digiboard comprises first processor, first communication module and second communication module, wherein, described first processor transfers to the instruction of described digiboard by the first communication module for receiving, and convert thereof into instruction bag, wherein, described instruction bag sends by second communication module.
Preferably, described first communication module is SFP or ethernet module.
Preferably, second communication module is serial interface module, comprises the first serial line interface or the second serial line interface, and the described first or second serial line interface can realize the transfer rate of 1.5G, 3G, 6Gbps.
Preferably, each analog board in described N number of analog board includes: detector, integrator, analog-digital converter, second processor, 3rd serial line interface and the 4th serial line interface, described detector is irradiated by X-rays the current signal converting to and be loaded with data, described integrator converts current signal to voltage signal, voltage signal is converted to the digital signal being loaded with data by analog-digital converter, second processor receives the digital signal being loaded with data, and the digital signal of data is loaded with by the 3rd serial line interface and the transmission of the 4th serial line interface, 4th serial line interface of each analog board is connected with the 3rd serial line interface of next stage respectively.
Preferably, described first processor and the second processor are the FPGA with high speed serialization transceiver.
Preferably, the first serial line interface of described digiboard is connected with the 3rd serial line interface of the analog board of the 1st in described N number of analog board, and the second serial line interface of described digiboard is connected with the 4th serial line interface of the N number of analog board in described N number of analog board.
According to a further aspect in the invention, a kind of data acquisition system (DAS) is provided, comprises main frame and data collector described above, wherein, described main frame is connected with the first communication module of the digiboard of described data collector, for sending instruction to described data collector; Described data collector for receiving described instruction, and is sent to described main frame by according to the data of described instruction acquisition; Wherein, described main frame is also for receiving described data.
Preferably, the digiboard of described data collector is used for the instruction being received the transmission of described main frame by first communication module, and is sent to described analog board by second communication module after converting thereof into director data bag.
Preferably, the digiboard of described data collector also for being received the data that described analog board gathers by second communication module, and is uploaded to described main frame by first communication module after converting thereof into reply data.
According to a third aspect of the invention we, a kind of collecting method is provided, comprises: the instruction of the digiboard Receiving Host transmission of data collector; Described instruction is transmitted to N number of analog board of data collector by described digiboard; The 1st analog board in described N number of analog board receives described instruction and is forwarded to next stage analog board successively; Described N number of analog board obtains data according to described instruction, and described data are forwarded to upper level analog board successively, is sent to described digiboard via the analog board of the 1st in described N number of analog board; Described digiboard receives described data and is uploaded to main frame.
Preferably, described method also comprises: the N number of analog board in described N number of analog board receives described instruction and is forwarded to upper level analog board successively; Described N number of analog board obtains data according to described instruction, and described data are forwarded next stage analog board successively, is sent to described digiboard via the N number of analog board to described N number of analog board.
Preferably, described method also comprises: digiboard judges whether the instruction received issues digiboard, if digiboard is issued in described instruction, then described digiboard performs instruction; If described instruction is not issue digiboard, then described instruction is forwarded to described N number of analog board by described digiboard.
Preferably, described instruction is forwarded to described N number of analog board and comprises by described digiboard: the first communication module of digiboard receives described instruction; The first processor of digiboard resolves described instruction, and converts thereof into instruction bag; Second communication module of digiboard is by described instruction Packet forwarding extremely described N number of analog board.
Preferably, described method also comprises: whether what described N number of analog board judgement received is upstream data, when described N number of analog board judge to receive as upstream data time, described data are forwarded step by step, is forwarded to described digiboard via the 1st analog board of described N number of analog board or N number of analog board.
Preferably, described digiboard receives described data and is uploaded to main frame and comprises: the second communication module of described digiboard receives the 1st analog board of described N number of analog board or the data of N number of analog board transmission; The first processor of described digiboard converts described data to packet; Described packet is uploaded to main frame by the first communication module of described digiboard.
Data collector provided by the invention, system and method, data transfer bandwidth is high, and real-time Data Transmission ability is strong, meets the maximization of X ray data acquisition system (DAS), high resolving power, continuous acquisition demand; Along with the expansion of system scale, the trouble diagnosibility that this programme is good improves research and development, the scheduling and planning efficiency of system, reduces after-sales service cost; Winding redundancy feature improves the reliability of system, can 24x7 round-the-clock running, makes system be applicable to the high field of reliability requirement.The present invention adopts digital data transmission between each board, and SATA line itself is with shielding, solves the shortcoming of simulating signal poor anti jamming capability, improves the performance of system.SATA seat and SATA line are all mature technologies, are widely used, stable performance, cheap, are conducive to the cost of reduction system, improve the stability of system.The parallel cable that SATA line is relatively traditional, takes up room little, is conducive to the miniaturization of system.The FPGA of present main flow is with high speed serialization transceiver, and speed is from hundreds of Mbps to tens Gbps, and price not etc., can not meet the demand of system at all levels.
Accompanying drawing explanation
By referring to the description of accompanying drawing to the embodiment of the present invention, above-mentioned and other objects of the present invention, feature and advantage will be more clear, in the accompanying drawings:
Fig. 1 shows the structural representation of centralized data acquisition system (DAS) in prior art;
Fig. 2 shows the structural representation of Parallel Port Data Sampling System in prior art;
Fig. 3 shows the structural representation of the data collector according to the embodiment of the present invention;
Fig. 4 shows the structural representation of the digiboard according to the embodiment of the present invention;
Fig. 5 shows the structural representation of the analog board according to the embodiment of the present invention;
Fig. 6 shows the structural representation of the data acquisition system (DAS) according to the embodiment of the present invention;
Fig. 7 shows the process flow diagram of the collecting method according to the embodiment of the present invention.
Embodiment
In more detail the present invention is described hereinafter with reference to accompanying drawing.In various figures, identical element adopts similar Reference numeral to represent.For the sake of clarity, the various piece in accompanying drawing is not drawn in proportion.In addition, may some known part not shown.
The present invention can present in a variety of manners, below will describe some of them example.
Fig. 3 shows the structural representation of the data collector according to the embodiment of the present invention.Shown data collector 300 comprises: digiboard 310 and analog board 320.
Wherein, analog board 320 comprises N number of analog board, N be more than or equal to 1 natural number.Analog board 321 in Fig. 3, analog board 322 ... analog board 32n represents each analog board successively, and each analog board company of series connection successively, for image data.
As shown in Figure 4, each analog board includes detector 1, integrator 2, analog-digital converter 3, second processor 4, the 3rd serial line interface 5 and the 4th serial line interface 6.Detector 1 receives X ray, and convert thereof into current signal, described integrator 2 converts current signal to voltage signal, analog-digital converter 3 converts voltage signal to digital signal, second processor 4 receives digital signal, and by the 3rd serial line interface 5 and the 4th serial line interface 6 transmission of digital signals, the 4th serial line interface 6 of each analog board is connected with the 3rd serial line interface 5 of next stage respectively.
In the present embodiment, communication is carried out by serial line interface between analog board.3rd serial line interface and the 4th serial line interface can be SATA interface or USB interface.
Digiboard 310, is connected with the analog board 321 of the 1st in analog board 320, for the instruction received is transmitted to analog board 320, and by data upload that analog board 320 arrives according to instruction acquisition.
In the present embodiment, digiboard 310 comprises first processor 311, first communication module 312 and second communication module 313.Wherein, first processor 311 transfers to the instruction of described digiboard by the first communication module 312 for receiving, and convert thereof into instruction bag, and wherein, described instruction bag sends by second communication module 313.First communication module is SPF or Ethernet, such as, be the optical fiber or the netting twine that meet 802.3 standards.Second communication module 313 is serial interface module, comprises the first serial line interface or the second serial line interface, and the first or second serial line interface can be SATA line, can realize the transfer rate of 1.5G, 3G, 6Gbps.
Wherein, 1st analog board 321 receives the instruction of described digiboard 310 forwarding, and is forwarded to next stage analog board successively, and namely instruction is forwarded to analog board 322 by analog board 321, instruction is forwarded to analog board 323 by analog board 322 again ... instruction is forwarded to analog board 32n by analog board 32n-1.
Analog board 320 according to the instruction acquisition data received, and is forwarded to upper level analog board successively, is sent to described digiboard 310 via the 1st analog board 321.Analog board 322, analog board 323 ... analog board 32n.Be such as analog board 32n, 32n-1 ... the data that analog board 322 gathers must be forwarded to analog board 321 step by step, and are forwarded to digiboard 310 via analog board 321.
In the present embodiment, between digiboard and analog board, carry out communication by serial line interface, as serial line interface is connected by SATA line.
In the present embodiment, the first processor 311 of digiboard and the second processor 4 of analog board 320 can be the FPGA of band high speed serialization transceiver.
In one preferably embodiment, digiboard and analog board 320 can also external transponder chips.
In a preferred embodiment, digiboard 310 is also connected with the N number of analog board 32n in analog board 320.Wherein, N number of analog board 32n receives the instruction that described digiboard 310 forwards, and be forwarded to upper level analog board successively, namely instruction is forwarded to analog board 32n-1 by analog board 32n, instruction is forwarded to analog board 32n-2 by analog board 32n-1 again ... instruction is forwarded to analog board 321 by analog board 322.Analog board 320 according to the instruction acquisition data received, and is forwarded to next stage analog board successively, is sent to described digiboard 310 via N number of analog board 32n.Analog board 32n, analog board 323 ... analog board 322.Be such as analog board 321,322 ... the data that analog board 32n-1 gathers must be forwarded to analog board 32n step by step, and are forwarded to digiboard 310 via analog board 32n.The path of analog board 321 to analog board 32m and analog board 32m to analog board 32n can be there is in middle analog board 32m simultaneously, such as, analog board 32m is by the path reception instruction of analog board 321 to analog board 32m, also instruction can be received by the path of analog board 32n to analog board 32m, similarly, analog board 32m by the path uploading data of analog board 32m to analog board 321, also can pass through the path uploading data of analog board 32m-analog board 32n.
Fig. 6 shows the structural representation of the data acquisition system (DAS) according to the embodiment of the present invention.As shown in the figure, data acquisition system (DAS) 100 comprises the data collector 300 in main frame 200 and above-described embodiment.This data collector 300 does not repeat them here.
Wherein, main frame 200 is connected with the first communication module 312 of the digiboard 310 of described data collector 300, for sending instruction to described data collector 300; Described data collector 300 for receiving described instruction, and is sent to described main frame 200 by according to the data of described instruction acquisition; Wherein, described main frame 200 is also for receiving described data.
Adopt the optical fiber meeting 802.3 standards or netting twine between main frame 200 and digiboard 310, between digiboard 310 and analog board 320 and between analog board 320, adopt SATA line to transmit data.The processor of digiboard 310 and analog board 320 adopts the FPGA with high speed serialization transceiver.FPGA can realize ICP/IP protocol stack, directly can be communicated with PC or workstation by SFP or Ethernet.
The instruction that digiboard 310 is sent by netting twine or the optical fiber Receiving Host 200 of ICP/IP protocol, and resolve this instruction, this instruction transformation become the instruction Packet forwarding of custom protocol to analog board 320.
Data acquisition system (DAS) provided by the invention, its analog-digital converter ADC is distributed on each analog board, and local digitization avoids analog signal transmission and emulation bus is shared, and achieves higher sampling rate; Adopt serial line interface to transmit data between its digiboard and analog board and each analog board, its SATA interface has 3 different protocol versions, can realize the transfer rate of 1.5G, 3G, 6Gbps, and with low cost; The processor of digiboard and analog board is the FPGA with high speed serialization transceiver, and high speed serialization transceiver can support the transmission bandwidth of 600Mbps ~ 50Gbps according to the difference of model, meet the bandwidth demand of X ray data acquisition system (DAS) completely; Adopt point-to-point docking between analog board, be convenient to the diagnosis of fault; Winding can improve the reliability of system.
Fig. 7 shows the process flow diagram of the collecting method according to the embodiment of the present invention.As shown in Figure 7, collecting method comprises the following steps.
In step S01, the instruction of the digiboard Receiving Host transmission of data collector.
In the present embodiment, the digiboard of data collector and main frame pass through with the netting twine of ICP/IP protocol or Fiber connection, and the instruction that digiboard Receiving Host sends parses instruction from procotol.
In step S02, described instruction is transmitted to N number of analog board of data collector by described digiboard.
In the present embodiment, digiboard judges whether the instruction received issues digiboard, if digiboard is issued in described instruction, then described digiboard performs instruction; If described instruction is not issue digiboard, then described instruction is forwarded to described N number of analog board by described digiboard.The instruction parsed is repacked according to custom protocol by digiboard, and is forwarded to analog board by the serial line interface with custom protocol.First communication module of digiboard receives described instruction; The first processor of digiboard resolves described instruction, and converts thereof into instruction bag; Second communication module of digiboard is by described instruction Packet forwarding extremely described N number of analog board.This serial line interface can be SATA interface or USB interface.
In step S03, the 1st analog board in described N number of analog board receives described instruction and is forwarded to next stage analog board successively.
In the present embodiment, instruction is first sent to the 1st analog board by digiboard, and forwards step by step successively, until be forwarded to N number of analog board.
In step S04, described N number of analog board obtains data according to described instruction, and described data are forwarded to upper level analog board successively, is sent to described digiboard via the analog board of the 1st in described N number of analog board.
In the present embodiment, the data collected according to the instruction acquisition data received, and forward by N number of analog board step by step successively, until the 1st analog board, then are sent to digiboard via the 1st analog board.Whether what described N number of analog board judgement received is upstream data, when described N number of analog board judge to receive as upstream data time, described data are forwarded step by step, is forwarded to described digiboard via the 1st analog board of described N number of analog board or N number of analog board.
In step S05, described digiboard receives described data and is uploaded to main frame.
In the present embodiment, digiboard receives the data gathered, from custom protocol, parse data, and it is repacked according to ICP/IP protocol and be uploaded to main frame.
In a preferred embodiment, step S03 can also comprise: the N number of analog board in described N number of analog board receives described instruction and is forwarded to upper level analog board successively.
And then step S04 can also comprise: data are forwarded to next stage analog board by described N number of analog board successively, be sent to described digiboard via the N number of analog board in described N number of analog board.
Each analog board has two paths to receive instruction, also has two paths the data of collection can be sent to digiboard.M analog board such as, can there is the 1st analog board to m analog board, and the n-th analog board is to m analog board two paths simultaneously.M analog board is by the path reception instruction of the 1st analog board to m analog board, also can by the path reception instruction of the n-th analog board to m analog board, similarly, analog board 32m can by the path uploading data of the 1st analog board to m analog board, also by the path uploading data of the n-th analog board to m analog board, and then the reliability of system can be improved.
Collecting method provided by the invention, data transfer bandwidth is high, and real-time Data Transmission ability is strong, meets the maximization of X ray data acquisition system (DAS), high resolving power, continuous acquisition demand; Along with the expansion of system scale, the trouble diagnosibility that this programme is good improves research and development, the scheduling and planning efficiency of system, reduces after-sales service cost; Winding redundancy feature improves the reliability of system, can 24x7 round-the-clock running, makes system be applicable to the high field of reliability requirement.The present invention adopts digital data transmission between each board, and SATA line itself is with shielding, solves the shortcoming of simulating signal poor anti jamming capability, improves the performance of system.SATA seat and SATA line are all mature technologies, are widely used, stable performance, cheap, are conducive to the cost of reduction system, improve the stability of system.The parallel cable that SATA line is relatively traditional, takes up room little, is conducive to the miniaturization of system.The FPGA of present main flow is with high speed serialization transceiver, and speed is from hundreds of Mbps to tens Gbps, and price not etc., can not meet the demand of system at all levels.
Should be noted that, in this article, the such as relational terms of first and second grades and so on is only used for an entity or operation to separate with another entity or operational zone, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
According to embodiments of the invention as described above, these embodiments do not have all details of detailed descriptionthe, do not limit the specific embodiment that this invention is only described yet.Obviously, according to above description, can make many modifications and variations.This instructions is chosen and is specifically described these embodiments, is to explain principle of the present invention and practical application better, thus makes art technician that the present invention and the amendment on basis of the present invention can be utilized well to use.The present invention is only subject to the restriction of claims and four corner and equivalent.
Claims (17)
1. a data collector, for the instruction acquisition data that basis receives, comprising:
N number of analog board, described N number of analog board is sequentially connected in series, N be more than or equal to 1 natural number, for image data;
Digiboard, is connected with the 1st analog board in described N number of analog board, for the instruction received is transmitted to described N number of analog board, and by data upload that described N number of analog board arrives according to instruction acquisition;
Wherein, the 1st analog board in described N number of analog board receives the instruction that described digiboard forwards, and be forwarded to next stage analog board successively, described N number of analog board is according to the instruction acquisition data received, and be forwarded to upper level analog board successively, be sent to described digiboard via the analog board of the 1st in described N number of analog board.
2. data collector according to claim 1, wherein, described digiboard is also connected with N number of analog board in described N number of analog board, in described N number of analog board, N number of analog board receives the instruction that described digiboard forwards, and be forwarded to upper level analog board successively, described N number of analog board according to the data of the instruction acquisition received, and is forwarded to next stage analog board successively, is sent to described digiboard via the N number of analog board in described N number of analog board.
3. data collector according to claim 1, wherein, described digiboard comprises first processor, first communication module and second communication module, wherein, described first processor transfers to the instruction of described digiboard by the first communication module for receiving, and convert thereof into instruction bag, wherein, described instruction bag sends by second communication module.
4. data collector according to claim 3, wherein, described first communication module is SFP or ethernet module.
5. data collector according to claim 3, wherein, second communication module is serial interface module, comprises the first serial line interface or the second serial line interface, and the described first or second serial line interface can realize the transfer rate of 1.5G, 3G, 6Gbps.
6. data collector according to claim 5, wherein, each analog board in described N number of analog board includes: detector, integrator, analog-digital converter, second processor, 3rd serial line interface and the 4th serial line interface, described detector receives X ray, and convert described X ray to current signal, described integrator converts current signal to voltage signal, analog-digital converter converts voltage signal to digital signal, second processor receives described digital signal, and transmit described digital signal by the 3rd serial line interface and the 4th serial line interface, 4th serial line interface of each analog board is connected with the 3rd serial line interface of next stage respectively.
7. data collector according to claim 6, wherein, described first processor and the second processor are the FPGA with high speed serialization transceiver.
8. data collector according to claim 6, wherein, first serial line interface of described digiboard is connected with the 3rd serial line interface of the analog board of the 1st in described N number of analog board, and the second serial line interface of described digiboard is connected with the 4th serial line interface of the N number of analog board in described N number of analog board.
9. a data acquisition system (DAS), comprises main frame and the data collector as described in claim 1-8, wherein,
Described main frame is connected with the first communication module of the digiboard of described data collector, for sending instruction to described data collector;
Described data collector for receiving described instruction, and by according to the data upload of described instruction acquisition to described main frame;
Wherein, described main frame is also for receiving described data.
10. data acquisition system (DAS) according to claim 9, wherein, the digiboard of described data collector is used for the instruction being received the transmission of described main frame by first communication module, and is sent to described analog board by second communication module after converting thereof into director data bag.
11. data acquisition system (DAS)s according to claim 10, wherein, the digiboard of described data collector also for being received the data that described analog board gathers by second communication module, and is uploaded to described main frame by first communication module after converting thereof into reply data.
12. 1 kinds of collecting methods, comprising:
The instruction of the digiboard Receiving Host transmission of data collector;
Described instruction is transmitted to N number of analog board of data collector by described digiboard;
The 1st analog board in described N number of analog board receives described instruction and is forwarded to next stage analog board successively;
Described N number of analog board obtains data according to described instruction, and described data are forwarded to upper level analog board successively, is sent to described digiboard via the analog board of the 1st in described N number of analog board;
Described digiboard receives described data and is uploaded to main frame.
13. collecting methods according to claim 12, wherein, described method also comprises:
N number of analog board in described N number of analog board receives described instruction and is forwarded to upper level analog board successively;
Described N number of analog board obtains data according to described instruction, and described data are forwarded next stage analog board successively, is sent to described digiboard via the N number of analog board to described N number of analog board.
14. collecting methods according to claim 12 or 13, wherein, described method also comprises:
Digiboard judges whether the instruction received issues digiboard,
If digiboard is issued in described instruction, then described digiboard performs instruction;
If described instruction is not issue digiboard, then described instruction is forwarded to described N number of analog board by described digiboard.
15. collecting methods according to claim 14, wherein, described instruction is forwarded to described N number of analog board and comprises by described digiboard:
First communication module of digiboard receives described instruction;
The first processor of digiboard resolves described instruction, and converts thereof into instruction bag;
Second communication module of digiboard is by described instruction Packet forwarding extremely described N number of analog board.
16. collecting methods according to claim 12 or 13, wherein, described method also comprises: whether what described N number of analog board judged to receive is upstream data,
When described N number of analog board judge to receive as upstream data time, described data are forwarded step by step, are forwarded to described digiboard via the 1st analog board of described N number of analog board or N number of analog board.
17. collecting methods according to claim 16, wherein, described digiboard receives described data and is uploaded to main frame and comprises:
Second communication module of described digiboard receives the 1st analog board of described N number of analog board or the data of N number of analog board transmission;
The first processor of described digiboard converts described data to packet;
Described packet is uploaded to main frame by the first communication module of described digiboard.
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