CN107167174B - Distributed type minisize data collecting system - Google Patents
Distributed type minisize data collecting system Download PDFInfo
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- CN107167174B CN107167174B CN201710217410.5A CN201710217410A CN107167174B CN 107167174 B CN107167174 B CN 107167174B CN 201710217410 A CN201710217410 A CN 201710217410A CN 107167174 B CN107167174 B CN 107167174B
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- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
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Abstract
The present invention relates to data collecting system, propose a kind of distributed type minisize data collecting system, stacked including host computer, distributed capture array management module and multiple data acquisitions, multiple collection links are connected by the LI(link interface) set in distributive array management module with distributed capture array management module, each acquisition link route multiple data acquisitions stackings and is formed by connecting by cascade bus, gathers the cascade mode that each data acquisition stacks in link and is configured as daisy chain connected mode；Each data acquisition, which stacks, to be included control module and multiple stacks gradually the sensor acquisition module being connected after connection with control module, control module is connected by cascading port with the superior and the subordinate's data acquisition stacking or distributed capture array management module, is sent control instruction for being realized to each data acquisition channel of sensor acquisition module, receives gathered data, data storage and is given the power supply of sensor acquisition module.Autgmentability of the present invention is strong, and passage is more, can extensive use.
Description
Technical field
The present invention relates to Aero-Space test analysis, automotive safety test, Exploding test, Aerospace vehicle test field data
A kind of acquisition system, and in particular to distributed type minisize data collecting system.
Background technology
It is main in Aero-Space test analysis, automotive safety test, Exploding test, vibratory impulse test, Aerospace vehicle test
Data collecting system is relied on to obtain the running parameter and environmental data of each part of change system, performance and event for evaluation equipment
Barrier positioning provides foundation.By in equipment preparation, production and regular maintenance to vibrating, impacting, pressure, strain and temperature etc.
The collection and analysis of data, directly perceived, accurate data can be provided with assessing for equipment Test.The reliability of data collecting system
It is the key factor of armament equipment experiment success or failure.Currently need the index tested many in current equipment Test, using more
Integrated test system instrument species that kind of instrument is built is various, volume is big, installation inconvenience, it is difficult to testing efficiency is improved, with
The continuous development of electronic technology and increasingly mature, domestic data collecting system is towards miniaturization, high accuracy, high sampling
Rate, Large Copacity, the direction of networking are fast-developing.Test for Large-Scale Equipment system, generally require more comprehensive, multi-faceted
Test data come system under test (SUT) accurately is described, it is therefore desirable to data acquisition channel quantity is extended.
The content of the invention
The present invention overcomes the shortcomings of the prior art, and technical problem to be solved is：A kind of distributed type minisize is provided
Data collecting system, to realize the distributed data acquisition of multichannel and upload.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：A kind of distributed type minisize data acquisition system
System, including host computer, distributed capture array management module and multiple data acquisitions stack, the distributive array management module
It is connected with the host computer, multiple LI(link interface)s, multiple collection link difference is provided with the distributive array management module
It is connected by the LI(link interface) with the distributed capture array management module, each acquisition link route multiple numbers
Stack according to collection and be formed by connecting by cascade bus, in same collection link, cascade mode that each data acquisition stacks by with
It is set to daisy chain connected mode；Each data acquisition, which stacks, includes control module and multiple sensor acquisition modules, institute
State after multiple sensor acquisition modules stack gradually connection and be connected with the control module, each sensor acquisition module includes more
The data acquisition channel of road independence, the sensor acquisition module are connected by M-LVDS communication bus with the control module；
2 cascade ports are provided with the control module, 2 cascades port is used for the control module and upper and lower DBMS
Collection stacks or the connection of distributed capture array management module, the control module are used for the multiple sensor acquisition module
Each data acquisition channel realize management, send control instruction, receive and gathered data, data storage and adopted to the sensor
Collect module for power supply.
The distributed capture array management module include communication interface modules, trigger manager, control command generator,
Data link selector, the multiple data sinks to be connected one to one with multiple LI(link interface)s, data cache controller, data
Cache module；Ethernet interface circuit, usb circuit are additionally provided with the distributed capture array management module and is touched
Send out interface circuit；The communication interface modules is connected by ethernet interface circuit or usb circuit with host computer, described logical
Letter interface module is connected with control command generator, data cache controller；The data link selector is sent out with control command
Raw device, data cache controller and the connection of multiple data sinks；The data cache controller and the data buffer storage mould
Block connects；The control command generator is connected by trigger manager with triggering interface circuit；The communication interface modules is used
In receiving and parsing through host computer order, and send to control command generator, control command generator is by host computer order
Acquisition instructions write register, and acquisition instructions are sent into corresponding LI(link interface), realization pair by data link selector
The control that collection in corresponding collection link stacks；Data from the collection stacking of LI(link interface) transmission, pass through data receiver
After device, data link selector, write in data cache module and cached by the data cache controller, and by described
Communication interface modules is uploaded to host computer.
4 LI(link interface)s are provided with the distributive array management module, 4 collection links pass through the link respectively
Interface is connected with the distributed capture array management module, and each acquisition link route 3, which is stated data acquisition and stacked, passes through level
Join bus connection；Each data acquisition, which stacks, includes 10 sensor acquisition modules, is set on each sensor acquisition module
It is equipped with 3 data acquisition channels.
The control module includes M-LVDS bus interface circuits, triggering interface circuit, subtending port circuit, voltage conversion
Circuit, data buffer storage unit, FLASH memory cell and FPGA basic modules, the voltage conversion circuit are used for the control
Molding block and the power supply of sensor acquisition module, the FPGA basic modules pass through M-LVDS bus interface circuits and the sensing
Device acquisition module connects, and is connected by triggering interface circuit with external trigger, passes through subtending port circuit and upper and lower DBMS
Collection stacks or the connection of distributed capture array management module, and the FPGA basic modules are used to receive external trigger transmission
The data reception command that trigger signal and host computer are sent, and according to receiving the starting signal and data reception command
The data of sensor acquisition module collection simultaneously carry out being sent to data buffer storage unit and the FLASH memory cell after data compile frame
Stored.
The FPGA basic modules include M-LVDS transceiver communications administrative unit, external trigger administrative unit, usb communication
Administrative unit, data cache controller, data storage controller, control command generator and arbitration unit, the external trigger
Administrative unit is connected with triggering interface circuit and control command generator, for trigger signal to be transferred into control command
Device, the cascade administrative unit is connected with subtending port circuit and control command generator, for the data for transmitting host computer
Receive and control command generator is sent to after order is parsed, control command generator and the management of M-LVDS transceiver communications are single
Member connection, for passing through M-LVDS transceiver communications pipes after generating data acquisition command according to trigger signal and data reception command
Reason unit is sent to sensor acquisition module；M-LVDS transceiver communications administrative unit and data cache controller and data storage
Controller connects, for the data that gather sensor acquisition module carry out data compile be sent to after frame data buffer storage unit,
FLASH memory cell stores, and the arbitration unit is connected with the data cache controller and usb communication administrative unit, is used for
The data that data buffer storage unit and FLASH memory cell store are sent to host computer by subtending port.
The sensor acquisition module include interface module, programming amplifying module, program control filtering module, AD conversion module,
Data cache module, M-LVDS interface chips, fpga core controller and voltage transformation module, the interface module and sensor
Connection, for sensor collection signal to be powered and received to the sensor, the signal of sensor collection is through the interface mould
The fpga core controller, the FPGA are transferred to after block, programming amplifying module, program control filtering module, after AD conversion module
Core controller by FIFO by data buffer storage to the data cache module, and after data requesting instructions are received, from FIFO
Data are read in module and control module is transferred to by M-LVDS interface chips；The fpga core controller is used to judge respectively
The state of individual acquisition channel, and control module is sent to by M-LVDS buses, the fpga core controller is additionally operable to receive
The configuration parameter and acquisition instructions of control module transmission, and to after the programming amplifying module, program control filtering module, AD
The data handling procedure of modular converter is controlled.
The sensor acquisition module is respectively IEPE sensors acquisition module or bridge type magnetic sensor acquisition module；When described
When sensor acquisition module is IEPE sensor acquisition modules, the interface module is IEPE interface modules, the IEPE interfaces
Module is connected with IEPE sensors, for providing constant current to IEPE sensors, and receives the collection signal of IEPE sensors；When
When the sensor acquisition module is bridge type magnetic sensor acquisition module, the interface module is bridge type magnetic sensor interface module, institute
State bridge type magnetic sensor interface module to be connected with bridge type magnetic sensor, for providing voltage drive to bridge type magnetic sensor, and receive bridge
The collection signal of formula sensor.
The programming amplifying module includes instrument amplifier AD8226 and variable gain amplifier AD603, the program control filter
Ripple module includes quadravalence Butterworth filter circuit and the programmable filter based on MAX264；The AD conversion module model
AD7693。
3 sensor interfaces are provided with each sensor acquisition module, each sensor acquisition module bag
3 AD conversion modules are included, form the acquisition channel of 3 tunnel independences, the data collecting system includes 10 sensors and gathers mould
Block.
The present invention has the advantages that compared with prior art：
1st, distributed type minisize data collecting system of the invention is using distributed, miniaturized design thought, by building chrysanthemum
Pattern chain formula data transfer mode, the physical connection mode being effectively simplified between each data acquisition stacking is more with passage, can
The features such as autgmentability is strong, using flexible, and reliability is high, single collection, which stacks, at most just can be extended to 30 acquisition channels, single-pass
Road sample rate is up to 500kSa/s, and whole distributed type minisize data collecting system at most can be extended to 360 acquisition channels；This
Outside, each data acquisition is stacked and is made up of the additional multiple data acquisition modules of a control module, has independent data acquisition
And managerial ability, by stacked structures reasonable in design, the anti-of single collection stacking can also be improved while assurance function
Impact capacity（1000g can be brought up to）；
2nd, the present invention is applied under various adverse circumstances to vibrating, impacting, pressure, the data such as strain and temperature are adopted
Collection, the number of channels of greatly growth data acquisition system is stacked by building distributed data acquisition, can be applied to severe
Inspection to change system and Performance Evaluation in environment；
3rd, distributed type minisize data collecting system of the invention is provided with gigabit ethernet interface and USB3.0 interfaces, can be with
It is connected respectively with local host computer and long-range host computer, shows and analyze and process so as to carry out the waveform of data；
4th, distributed type minisize data collecting system of the invention can be Aeronautics and Astronautics and ground equipment system provide it is reliably fast
The means of testing of speed, can effectively save man power and material, good control is established to optimize and improving equipment function.
Brief description of the drawings
Fig. 1 is a kind of distributed type minisize data collecting system structured flowchart that the embodiment of the present invention proposes；
Fig. 2 is the internal structure schematic diagram that individual data collection stacks in the embodiment of the present invention；
Fig. 3 is the outline structural diagram that data acquisition stacks in the embodiment of the present invention；
Fig. 4 is single daisy chain connected mode structured flowchart in the embodiment of the present invention；
Fig. 5 is the structured flowchart of distributed capture array management module in the embodiment of the present invention；
Fig. 6 is the structural representation of the control module that individual data collection stacks in the embodiment of the present invention；
Fig. 7 is the structural representation of the sensor acquisition module that individual data collection stacks in the embodiment of the present invention；
Fig. 8 is complete machine software block diagram in the embodiment of the present invention.
Embodiment
, below will be in the embodiment of the present invention to make the purpose, technical scheme and advantage of the embodiment of the present invention clearer
Technical scheme be clearly and completely described, it is clear that described embodiment be the present invention part of the embodiment, without
It is whole embodiments；Based on the embodiment in the present invention, those of ordinary skill in the art are not before creative work is made
The every other embodiment obtained is put, belongs to the scope of protection of the invention.
As shown in Fig. 1 ~ Fig. 5, a kind of distributed type minisize data collecting system for being proposed in the embodiment of the present invention, such as Fig. 1 institutes
Show, the distributed type minisize data collecting system includes host computer 1, distributed capture array management module 2 and 12 data acquisitions
3 are stacked, the distributive array management module 2 is connected with the host computer 1, is set in the distributive array management module 2
There are 4 LI(link interface)s, multiple collection links are connected by the LI(link interface) with the distributed capture array management module respectively,
Each acquisition link route 3 data acquisitions stackings and is formed by connecting by cascade bus, each in same collection link
The cascade mode that data acquisition stacks is configured as daisy chain connected mode.
As shown in Figures 2 and 3, each data acquisition, which stacks 3, includes control module 31 and the collection of multiple sensors
Module 32,2 cascade ports 33 is provided with the control module 31 that the data acquisition stacks, 2 cascades port 33 is used
In by the control module 31 and the superior and the subordinate data acquisitions stack 3 or distributed capture array management module 2 be connected；Multiple sensings
Device acquisition module 32 is connected after stacking gradually connection with control module 31, and 3 biographies are provided with each sensor acquisition module 32
Sensor access interface 34, each sensor acquisition module inside include the data acquisition channel of 3 tunnel independences, the sensor collection
Module 32 is connected by M-LVDS communication bus with the control module；The control module is used to adopt the multiple sensor
The each data acquisition channel for collecting module realizes management, sends control instruction, receives gathered data, data storage and to the biography
Sensor acquisition module is powered；The quantity of sensor acquisition module can be arranged as required to, on each sensor acquisition module
Sensor interface is provided with, for being connected with sensor.
As shown in figure 3, during the data acquisition in the present invention stacks, the control module and multiple sensor acquisition modules
After being encapsulated respectively by Embedding Material, individually it is arranged in bumper housing；Multiple sensor acquisition modules heap successively
Stack and connect with the control module after folded connection, the contact between the bumper housing of the multiple sensor acquisition module is set
M-LVDS communication interfaces and power interface are provided with surface, then in control module and sensor acquisition module in the same of stacking
When, it can also realize circuit connection and configuration.
Then distributed type minisize data collecting system of the invention can extend to 360 data acquisition channels.In addition, this hair
In bright distributed type minisize data collecting system, LI(link interface) and data acquisition in distributed capture array management module stack
Quantity can also be less or more, the quantity of sensor acquisition module during each data acquisition stacks can also be less
Or it is more, particular number can be configured according to the data channel to be gathered.
When host computer, which is sent, to be instructed, host computer instruction, control command hair are received and parsed through by communication interface management module
Acquisition instructions are write related register group by raw device, and acquisition instructions are sent into specific link by data link selector
Interface, realize the control stacked to collection；Read the data during collection stacks one by one using distributed capture array management module
When, data are cached using DDR2 SDRAM, and computer is uploaded to by communication interface management module.The present embodiment
In, it is concatenated together by way of multiple collection stackings are used daisy chain by distributed capture array management module, is formed and divided
Cloth data collecting system, the module can build 4 daisy chain type data acquisition links, and every collection link can carry 3
Collection stacks, and can effectively extend the number of channels of acquisition system.
As shown in figure 4, the chrysanthemum connected mode structured flowchart stacked for the data acquisition in single collection link.The present invention
Each stacking in data acquisition array is managed collectively using daisy chain connected mode for design and centralized Control.For this micro-
Cascade port is devised in type data collecting system, the cascade mode of acquisition system is configured to daisy chain connected mode, port
Inside includes data/address bus, controlling bus, status bus and power supply signal etc..In single daisy chain type connected mode, on link
Multilevel device form a closed network, including a main equipment and multistage slave unit, there are data between adjacent slave unit
Or instruction interaction function, in Transmission system order, acquisition system 1 is as daisy chain proximally by cascade port I receptions
Position machine control instruction, outer triggering signal and supply input signal, by cascade port II be sequentially output it is remote to daisy chain
The collection at end stacks；When reading data, acquisition system 3 is uploaded data by cascade bus as the distal end of daisy chain step by step
Collection to near-end stacks, and is achieved in the centralized Control to wall scroll daisy chain.
As shown in figure 5, the distributed capture array management module 2 includes communication interface modules, trigger manager, control
Command generator, data link selector, 4 data sinks to be connected one to one with 4 LI(link interface)s, data buffer storage control
Device processed（DDR2 controllers）, data cache module（DDR2SDRAM）；It is additionally provided with the distributed capture array management module
Ethernet interface circuit, usb circuit and triggering interface circuit；The communication interface modules passes through ethernet interface circuit
Or usb circuit is connected with host computer, the communication interface modules connects with control command generator, data cache controller
Connect；The data link selector is connected with control command generator, data cache controller and multiple data sinks；
The data cache controller is connected with the data cache module；The control command generator is by trigger manager with touching
Send out interface circuit connection；The communication interface modules is used to receive and parse through host computer order, and sends to control command and occur
Device, the acquisition instructions in host computer order are write register by control command generator, and will be adopted by data link selector
Collection instruction is sent to corresponding LI(link interface), realizes the control stacked to the corresponding collection gathered in link；Passed from LI(link interface)
Data in defeated collection stacking, after data sink, data link selector, are write by the data cache controller
Cached in data cache module, and host computer is uploaded to by the communication interface modules.
Further, as shown in fig. 6, the control module during the data acquisition stacks includes M-LVDS EBIs electricity
Road, triggering interface circuit, subtending port circuit, voltage conversion circuit, data buffer storage unit, FLASH memory cell and FPGA
Basic module, the voltage conversion circuit are used to power to the control module and sensor acquisition module, the FPGA bases
Plinth module is connected by M-LVDS bus interface circuits with the sensor acquisition module, is touched by triggering interface circuit with outside
Device connection is sent out, is connected by subtending port circuit with the superior and the subordinate's data acquisition stacking or distributed capture array management module, institute
The data reception command that FPGA basic modules are used for the trigger signal and host computer transmission for receiving external trigger transmission is stated, and
Receive the data of the sensor acquisition module collection according to the starting signal and data reception command and carry out data and compile frame
After be sent to data buffer storage unit and the FLASH memory cell and stored.
Further, as shown in fig. 6, the FPGA basic modules include M-LVDS transceiver communications administrative unit, outside
Trigger administrative unit, cascade administrative unit, data cache controller, data storage controller, control command generator and arbitration
Unit, the external trigger administrative unit is connected with triggering interface circuit and control command generator, for trigger signal to be passed
Defeated to arrive control command generator, the cascade administrative unit is connected with subtending port circuit and control command generator, for inciting somebody to action
The data reception command of host computer transmission is sent to control command generator, control command generator and M-LVDS after being parsed
Transceiver communications administrative unit connects, for passing through M- after generating data acquisition command according to trigger signal and data reception command
LVDS transceiver communications administrative units are sent to sensor acquisition module；M-LVDS transceiver communications administrative unit and data buffer storage
Controller connects with data storage controller, and the data for sensor acquisition module to be gathered be sent to after data compile frame
Data buffer storage unit, the storage of FLASH memory cell, the arbitration unit and the data cache controller and usb communication management
Unit connect, for by data buffer storage unit and FLASH memory cell storage data by usb communication administrative unit send to
Host computer.
Further, as shown in fig. 7, the sensor acquisition module during the data acquisition stacks includes interface module, journey
Control amplification module, program control filtering module, AD conversion module, data cache module, M-LVDS interface chips, fpga core controller
And voltage transformation module, the interface module are connected with sensor, adopted for sensor to be powered and received to the sensor
Collect signal, the signal of sensor collection is after the interface module, programming amplifying module, program control filtering module, AD conversion module
After be transferred to the fpga core controller, the fpga core controller is by FIFO by data buffer storage to the data buffer storage
Module, and after data requesting instructions are received, data are read from fifo module and control is transferred to by M-LVDS interface chips
Molding block；The fpga core controller is used for the state for judging each acquisition channel, and is sent to control by M-LVDS buses
Molding block, the fpga core controller are additionally operable to receive the configuration parameter and acquisition instructions of the control module transmission, and
To after the programming amplifying module, program control filtering module, the data handling procedure of AD conversion module is controlled.
Further, the sensor acquisition module is respectively IEPE sensors acquisition module or bridge type magnetic sensor collection mould
Block；When the sensor acquisition module is IEPE sensor acquisition modules, the interface module is IEPE interface modules, described
IEPE interface modules are connected with IEPE sensors, for providing constant current to IEPE sensors, and receive adopting for IEPE sensors
Collect signal；When the sensor acquisition module is bridge type magnetic sensor acquisition module, the interface module connects for bridge type magnetic sensor
Mouth mold block, the bridge type magnetic sensor interface module are connected with bridge type magnetic sensor, for providing voltage drive to bridge type magnetic sensor, with
And receive the collection signal of bridge type magnetic sensor.
Further, the programming amplifying module includes instrument amplifier AD8226 and variable gain amplifier AD603, institute
Stating program control filtering module includes quadravalence Butterworth filter circuit and the programmable filter based on MAX264；The AD conversion module
Model AD7693, data bit width are 16.In order to improve acquisition capacity of the acquisition system to small-signal, make collection signal
Amplitude is consistent with the input range of A/D conversion chips, and enhanced processing is done to collection signal by the way of two-stage amplification.Using
Instrument amplifier AD8226 and variable gain amplifier AD603 design programme-controlled gain amplifying circuits, are amplified to signal by two-stage
Nursed one's health.Program control filtering module mainly carries out program control filtering according to filtering parameter to collection signal.Program control filtering module is main
It is made up of quadravalence Butterworth filter circuit and the programmable filter based on MAX264, the increasing between 0dB ~+62.14dB can be achieved
Benefit adjustment, built-in Butterworth filter cut-off frequency is 40kHz；Can be according to the bandwidth of collected signal to programmable filter
Q values and cut-off frequency are adjusted, by setting different working methods to realize different filter functions.In the present invention
The core circuit of program control filtering circuit can be grammed switch capacitive filter MAX264, and programmable function is realized by FPGA.
Further, as shown in figure 8, the distributed type minisize data collecting system of the present embodiment, its host computer Software for Design
Using the systems of Win 7 as development platform, Software for Design uses modular design method, by primary control program, driver, parameter
Configurator and functions of modules program composition.The system be one using hardware as control, the entirety that software, hardware are combined closely,
Specifically include input parameter configuration module, storage parameter configuration module, program control parameter configuration module, calibrating parameters configuration module,
Data acquisition and control module, data storage control module, Data Analysis Services module, waveform display module, data management module,
The parts such as Ethernet interface driving, USB interface driving.Application program main interface design is the region of several functional independences, successively
For work(parameter setting area, status display area, data analysis area, function menu area.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, either which part or all technical characteristic are entered
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.
Claims (9)
1. a kind of distributed type minisize data collecting system, it is characterised in that including host computer, distributed capture array management module
Stacked with multiple data acquisitions, the distributive array management module is connected with the host computer, the distributive array management
Multiple LI(link interface)s are provided with module, multiple collection links pass through the LI(link interface) and the distributed capture array respectively
Management module is connected, and each multiple data acquisitions of acquisition link route stack to be formed by connecting by cascade bus, same
Gather in link, the cascade mode that each data acquisition stacks is configured as daisy chain connected mode；
Each data acquisition, which stacks, includes control module and multiple sensor acquisition modules, the multiple sensor collection
Module is connected after stacking gradually connection with the control module, and each sensor acquisition module includes the data acquisition of multichannel independence
Passage, the sensor acquisition module are connected by M-LVDS communication bus with the control module；
2 cascade ports are provided with the control module, 2 cascades port is used for the control module and the superior and the subordinate
Data acquisition stacking or the connection of distributed capture array management module, the control module are used to gather the multiple sensor
Each data acquisition channel of module realizes management, sends control instruction, receives gathered data, data storage and to the sensing
Device acquisition module is powered.
A kind of 2. distributed type minisize data collecting system according to claim 1, it is characterised in that the distributed capture
Array management module include communication interface modules, trigger manager, control command generator, data link selector, with it is multiple
Multiple data sinks that LI(link interface) connects one to one, data cache controller, data cache module；The distribution is adopted
Ethernet interface circuit, usb circuit and triggering interface circuit are additionally provided with collection array management module；
The communication interface modules is connected by ethernet interface circuit or usb circuit with host computer, the communication interface
Module is connected with control command generator, data cache controller；The data link selector and control command generator, number
Connected according to cache controller and multiple data sinks；The data cache controller is connected with the data cache module；
The control command generator is connected by trigger manager with triggering interface circuit；
The communication interface modules is used to receive and parse through host computer order, and sends to control command generator, control command
Acquisition instructions in host computer order are write register by generator, and are sent to acquisition instructions by data link selector
Corresponding LI(link interface), realize the control stacked to the corresponding collection gathered in link；Stacked from the collection of LI(link interface) transmission
In data, after data sink, data link selector, by the data cache controller write data cache module
In cached, and host computer is uploaded to by the communication interface modules.
A kind of 3. distributed type minisize data collecting system according to claim 1, it is characterised in that the distributive array
4 LI(link interface)s are provided with management module, 4 collection links pass through the LI(link interface) and the distributed capture battle array respectively
Row management module connects, and each acquisition link route 3 is stated data acquisition and stacked by cascade bus connection；Each data
Collection, which stacks, includes 10 sensor acquisition modules, and 3 data acquisition channels are provided with each sensor acquisition module.
A kind of 4. distributed type minisize data collecting system according to claim 1, it is characterised in that the control module bag
Include M-LVDS bus interface circuits, triggering interface circuit, subtending port circuit, voltage conversion circuit, data buffer storage unit,
FLASH memory cell and FPGA basic modules, the voltage conversion circuit are used to adopt to the control module and sensor
Collect module for power supply, the FPGA basic modules are connected by M-LVDS bus interface circuits with the sensor acquisition module, are led to
Cross triggering interface circuit to be connected with external trigger, adopted by subtending port circuit and the superior and the subordinate's data acquisition stacking or distribution
Collect the connection of array management module, the FPGA basic modules are used for trigger signal and the host computer hair for receiving external trigger transmission
The data reception command sent, and the sensor acquisition module is received according to the trigger signal and data reception command and gathered
Data and be sent to data buffer storage unit and the FLASH memory cell after data compile frame and stored.
A kind of 5. distributed type minisize data collecting system according to claim 4, it is characterised in that FPGA bases mould
Block includes M-LVDS transceiver communications administrative unit, external trigger administrative unit, usb communication administrative unit, data buffer storage control
Device, data storage controller, control command generator and arbitration unit, the external trigger administrative unit and triggering interface circuit
Connected with control command generator, for trigger signal to be transferred into control command generator, the cascade administrative unit and level
Connecting port circuit is connected with control command generator, and the data reception command for host computer to be transmitted is sent to after being parsed
Control command generator, control command generator is connected with M-LVDS transceiver communications administrative units, for according to trigger signal
Gathered with sensor is sent to by M-LVDS transceiver communications administrative units after data reception command generation data acquisition command
Module；M-LVDS transceiver communications administrative units are connected with data cache controller and data storage controller, for that will sense
The data of device acquisition module collection carry out being sent to data buffer storage unit, the storage of FLASH memory cell after data compile frame, described secondary
Cut out unit to be connected with the data cache controller and usb communication administrative unit, for data buffer storage unit and FLASH to be stored
The data of unit storage are sent to host computer by subtending port.
A kind of 6. distributed type minisize data collecting system according to claim 1, it is characterised in that the sensor collection
Module includes interface module, programming amplifying module, program control filtering module, AD conversion module, data cache module, M-LVDS interfaces
Chip, fpga core controller and voltage transformation module, the interface module are connected with sensor, for being supplied to the sensor
Electricity and reception sensor collection signal, the signal of sensor collection is through the interface module, programming amplifying module, program control filtering
It is transferred to the fpga core controller after module, after AD conversion module, the fpga core controller is by FIFO by data
The data cache module is cached to, and after data requesting instructions are received, data is read from fifo module and pass through M-
LVDS interface chip is transferred to control module；The fpga core controller is used for the state for judging each acquisition channel, and leads to
Cross M-LVDS buses and be sent to control module, the fpga core controller is additionally operable to receive the configuration of the control module transmission
Parameter and acquisition instructions, and to after the programming amplifying module, program control filtering module, the data handling procedure of AD conversion module
It is controlled.
A kind of 7. distributed type minisize data collecting system according to claim 6, it is characterised in that the sensor collection
Module is respectively IEPE sensors acquisition module or bridge type magnetic sensor acquisition module；
When the sensor acquisition module is IEPE sensor acquisition modules, the interface module is IEPE interface modules, institute
State IEPE interface modules to be connected with IEPE sensors, for providing constant current to IEPE sensors, and receive IEPE sensors
Gather signal；
When the sensor acquisition module is bridge type magnetic sensor acquisition module, the interface module is bridge type magnetic sensor interface mould
Block, the bridge type magnetic sensor interface module are connected with bridge type magnetic sensor, for providing voltage drive, Yi Jijie to bridge type magnetic sensor
Receive the collection signal of bridge type magnetic sensor.
A kind of 8. distributed type minisize data collecting system according to claim 6, it is characterised in that the programming amplifying mould
Block includes instrument amplifier AD8226 and variable gain amplifier AD603, and the program control filtering module includes quadravalence Butterworth
Filter circuit and the programmable filter based on MAX264；The AD conversion module model AD7693.
A kind of 9. distributed type minisize data collecting system according to claim 6, it is characterised in that each sensor
3 sensor interfaces are provided with acquisition module, each sensor acquisition module includes 3 AD conversion modules, forms 3
The acquisition channel of road independence, the data collecting system include 10 sensor acquisition modules.
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| CN108011970B (en) * | 2017-12-20 | 2024-02-06 | 联创中控（北京）教育科技有限公司 | Universal acquisition control node, system and data acquisition method |
| CN207833286U (en) * | 2018-02-06 | 2018-09-07 | 东莞理工学院 | A kind of IEPE collecting sensor signals card |
| CN109916537A (en) * | 2019-04-01 | 2019-06-21 | 中北大学 | A kind of pressure data acquisition system based on picogram bus transfer agreement |
| CN110557285B (en) * | 2019-09-03 | 2022-04-19 | 明峰医疗***股份有限公司 | Detector data acquisition system architecture and communication method |
| CN110850758B (en) * | 2019-09-29 | 2021-06-11 | 北京航天长征飞行器研究所 | Telemetry system and method with configurable frame structure |
| CN112134564A (en) * | 2020-09-04 | 2020-12-25 | 湖北三江航天红峰控制有限公司 | Multichannel cascade AD acquisition system and acquisition method |
| CN112199318A (en) * | 2020-09-28 | 2021-01-08 | 芜湖职业技术学院 | Parameter-adjustable multi-channel data acquisition device and method |
| CN115277778B (en) * | 2022-07-29 | 2023-09-15 | 平安科技（深圳）有限公司 | Configuration method and device of Internet of things system, electronic equipment and storage medium |
| CN115599010A (en) * | 2022-08-12 | 2023-01-13 | 北京中海技创科技发展有限公司（Cn） | Multi-channel embedded synchronous acquisition system and method thereof |
| CN115481063A (en) * | 2022-11-04 | 2022-12-16 | 成都立思方信息技术有限公司 | Distributed high-speed signal receiving and transmitting processing system |
| CN116737624B (en) * | 2023-06-06 | 2024-03-12 | 成都立思方信息技术有限公司 | High-performance data access device |
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