CN206339849U - A kind of DLT signal pickup assembly based on bus - Google Patents
A kind of DLT signal pickup assembly based on bus Download PDFInfo
- Publication number
- CN206339849U CN206339849U CN201621303091.7U CN201621303091U CN206339849U CN 206339849 U CN206339849 U CN 206339849U CN 201621303091 U CN201621303091 U CN 201621303091U CN 206339849 U CN206339849 U CN 206339849U
- Authority
- CN
- China
- Prior art keywords
- module
- bus
- signal
- acquisition module
- data
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The utility model belongs to industrial measurement and control technical field, and in particular to a kind of DLT signal pickup assembly based on bus.Including controller, 1394 data conversion modules, KVM, backboard unit, universal signal acquisition module, power isolation module, interface unit, sensor assembly；Controller is connected with 1394 data conversion modules transmits 1394 protocol data informations, controller is connected with KVM transmits video display information, backboard unit is connected with 1394 data conversion modules, backboard unit is connected with universal signal acquisition module by 1394 communication bus transmits control information and universal signal acquisition module output data information, universal signal acquisition module is connected with interface unit by signal wire and compensation lead of thermocouple transmits the data message of collection, power isolation module and interface unit are connected transmission sensor supply voltage signal by power line, sensor assembly is connected with interface unit transmits the data message of collection.The problem of the utility model efficiently solves cumbersome gatherer process, poor real.
Description
Technical field
The utility model belongs to industrial measurement and control technical field, and in particular to a kind of DLT signal acquisition based on bus
Device.
Background technology
Modern industry production, control and field of scientific study in, to various field datas for example temperature, pressure, flow and
The parameters such as vibration are acquired, transmit and handled to have great significance in process of production.It is many in production process in order to obtain
The dynamic data of seed ginseng quantity, this is accomplished by the data acquisition that multichannel is carried out to controlled device and production process.At present, for
The multi-path data collecting device of vxi bus, PXI bus structures, according to the corresponding collector of different choice of collection signal type
And interface mode, inconvenience is patched, gatherer process is cumbersome, poor real；And by its single task tupe and operating rate etc.
Influence, to ensure sample frequency, sampling way can not be made a lot, and autgmentability is bad, it is impossible to meet industry spot and multichannel is believed
Number collection real-time sampling, general channel interface, simple operation, antinoise signal interference etc. require.Therefore need to be directed to above-mentioned collection
Deficiency in system proposes a kind of more preferable solution.
The content of the invention
The purpose of this utility model is to overcome the shortcomings of that above-mentioned prior art is present, and proposes a kind of multichannel based on bus
Universal signal harvester.
Technical solution adopted in the utility model is：
A kind of DLT signal pickup assembly based on bus, including controller, 1394 data conversion modules, KVM, the back of the body
Slab element, universal signal acquisition module, power isolation module, interface unit, sensor assembly；Controller and 1394 data conversions
Module, which is connected, transmits 1394 protocol data informations, and controller is connected with KVM transmits video display information, backboard unit and 1394 numbers
It is connected according to modular converter, backboard unit is connected with universal signal acquisition module by 1394 communication bus transmits control information and logical
With signal acquisition module output data information, universal signal acquisition module is led with interface unit by signal wire and thermocouple compensation
Line is connected the data message of transmission collection, and power isolation module and interface unit are powered electricity by the power line transmission sensor that is connected
Signal is pressed, sensor assembly is connected with interface unit transmits the data message of collection.
Described controller is connected with 1394 data conversion modules by pci interface transmits 1394 protocol data informations, control
Device processed is connected with KVM by VGA or DVI and USB data line transmits video display information；Controller will cover logical more by bus
Connected with signal acquisition module.
1394 described data conversion modules turn IEEE 1394b capture cards from PCI, and the PCI for being inserted into controller main frame is inserted
In groove, the data message of be connected by 1394 connecting lines with backboard unit transmission control information and collection；1394 data conversion moulds
Block is exported after the data-signal received is changed according to 1394 agreements.
Described KVM includes display and keyboard and mouse, and KVM connects controller by VGA or DVI interface.
Described backboard unit includes emulation bus, digital communication/controlling bus, power bus and bus communication interface,
As connection controller and the bridge of universal signal acquisition module, measured signal is interconnected by emulation bus；Pass through number
Word communication/controlling bus controller is sent to universal signal acquisition module orders and receives measurement data；Universal signal gathers mould
The power supply of block is provided by power bus, and backboard unit is connected by bus communication Interface and Controler to be communicated.
Described universal signal acquisition module is divided into normal voltage acquisition module, normalized current acquisition module and thermocouple temperature
Spend acquisition module；Normal voltage acquisition module and normalized current acquisition module, letter is passed through per voltage and current acquisition channel all the way
Number line is connected on the same universal telecommunication interface of interface unit；Thermocouple Temperature Acquisition module, per acquisition channel all the way
It is connected respectively to by K, T, E compensating wire in K, T, E3 of interface unit common temperature acquisition interfaces；Controller is to thermoelectricity
Each passage of even temperature collect module is configured, by the control to phasing meter, is realized to multichannel T, K, E type thermocouple
Collection in real time.
Described normal voltage acquisition module, normalized current acquisition module and Thermocouple Temperature Acquisition module includes：Letter
Number conditioning module, A/D modular converters, electrical isolation module, FPGA data processing module, bus communication module and power module；
Signal-regulated kinase is amplified to sensor assembly output signal, and A/D modular converters are connected transmission with electrical isolation module often
Data signal after road sign calibration signal A/D conversions, electrical isolation module is connected with FPGA data processing module to be transmitted each passage and adopts
Collect the data message after electrical isolation, FPGA data processing module is connected with bus communication module after transmission control information and processing
Multichannel data information, bus communication module is connected with backboard unit internal digital communication/controlling bus, for logical with controller
Letter, power module provides power supply for coupled module；Pass through the multiple multi-channel serial A/D of FPGA data processing modules implement
Modular converter concurrent working simultaneously.
Described interface unit and universal signal acquisition module are connected transmission sensing by signal wire and K, T, E compensating wire
The data message of device collection, interface unit and power isolation module are connected transmission sensor supply voltage signal by power line.
Described sensor assembly is made up of polytype sensor, including 0~5V of outputting standard signal sensor,
4~20mA of outputting standard signal sensor and T, K, E type thermocouple sensor, it passes through sensor connecting line with interface unit
The standard connector of cable, which is connected, transmits the data message of collection.
Described power isolation module includes linear direct current regulated power supply and isolation module, and linear direct current regulated power supply passes through
The power bus of backboard unit provides excitation power supply, isolation module and linear direct current regulated power supply phase for universal signal acquisition module
Even output multi-channel voltage signal, is that each sensor is individually powered, and power isolation module is carried out to the power supply between sensor
It is effectively isolated.
Having the beneficial effect that acquired by the utility model：
The utility model is simple, be easily achieved, and efficiently solves cumbersome conventional gatherer process, poor real, autgmentability poor
Defect.The device can provide universal test to outputting standard voltage, the various kinds of sensors of current signal and temperature sensor
Passage, realizes synchronous acquisition and the storage of multichannel standard electric signal and multi way temperature channel data, and with voltage/current interface
General, sensor hot plug is supported in T, K, E type thermocouple channel multiplexing, passage power isolation, the features such as reliability is high, significantly
Improve the ability of signal acquiring system.The utility model is using 1394 protocol communications, FPGA are controlled, channel interface is general, electricity
The technologies such as source isolation, are realized to the same of multiple-channel output normal voltage, the various kinds of sensors of current signal and T, K, E type thermocouple
Step collection, and be sent to by bus on controller, actual parameter value can obtain according to linearly or nonlinearly processing.This
Utility model facilitates extended simulation signal acquisition way, and take full advantage of FPGA parallel processing by FPGA processing datas
Structure, improves the real-time of processing data.It is mutually isolated between each passage, and by taking corresponding interference protection measure, make
It has good interference free performance；Standard electric signal measurement passage can provide 24VDC driving voltages for sensor.
Brief description of the drawings
Fig. 1 is the signal pickup assembly structure chart of the DLT based on bus；
Fig. 2 is universal signal acquisition module structure chart；
Fig. 3 is standard electric signal sampling channel air plug definition figure；
Fig. 4 is 3 line voltage sensor connection figures；
Fig. 5 is 2 line amperometric sensor connection figures.
Embodiment
The utility model is described in detail with specific embodiment below in conjunction with the accompanying drawings.
As shown in figure 1, the DLT described in the utility model based on bus is included with signal pickup assembly：Controller,
1394 data conversion modules, KVM, backboard unit, universal signal acquisition module, power isolation module, interface unit, sensor die
Block；Controller is connected with 1394 data conversion modules by pci interface transmits 1394 protocol data informations, and controller leads to KVM
Cross VGA or DVI with USB data line to be connected transmission video display information, backboard unit connect by 1394 built-in bus communications
Mouth is connected with 1394 data conversion modules by 1394 connecting lines, and backboard unit communicates with universal signal acquisition module by 1394
Bus, which is connected, transmits control information and universal signal acquisition module output data information, universal signal acquisition module and interface unit
It is connected by signal wire with compensation lead of thermocouple and transmits the data message of collection, power isolation module passes through electricity with interface unit
Source line is connected transmission sensor supply voltage signal, and the connecting line standard connector of sensor assembly is connected transmission with interface unit
The data message of collection.
Described controller is connected with 1394 data conversion modules by pci interface transmits 1394 protocol data informations, with
KVM is connected by VGA or DVI with USB data line transmits video display information.Controller will cover universal signal more by bus
Acquisition module is connected, and realizes synchronous acquisition, parameter setting, linear process, data display and the storage of multichannel universal signal,
And possess the abnormal conditions warning function such as communication, equipment state.
1394 described data conversion modules turn IEEE 1394b capture cards from PCI, and the PCI for being inserted into controller main frame is inserted
In groove, the data message of be connected by 1394 connecting lines with backboard unit transmission control information and collection；1394 data conversion moulds
Block is exported after the data-signal received is changed according to 1394 agreements.
Described KVM includes display and keyboard and mouse.KVM integrates keyboard, mouse and display, is that controller is carried
Supply into, display function, integrated level is high, greatlys save cabinet space, pass through VGA or DVI interface connects controller.
Described backboard unit includes：Emulation bus, digital communication/controlling bus, power bus and bus communication interface,
, can be mutual by measured signal by the emulation bus on backboard as connection controller and the bridge of universal signal acquisition module
It is connected；By the communication bus on backboard, controller can send to universal signal acquisition module and order and receive measurement number
According to.The power supply of universal signal acquisition module is provided by backboard power bus, and backboard unit passes through 1394 built-in buses
Interface and Controler, which are connected, to be communicated.
Sensor sensing measured physical quantity simultaneously produces corresponding analog electrical signal, and electrical signal data is transferred to universal signal and adopted
Collect module, according to the difference of sensor type, universal signal acquisition module is divided into normal voltage acquisition module, normalized current collection
Module and Thermocouple Temperature Acquisition module.
Described normal voltage acquisition module and normalized current acquisition module, passes through per voltage and current acquisition channel all the way
Signal wire is connected on the same universal telecommunication interface of interface unit.
Described Thermocouple Temperature Acquisition module, is connected respectively to by K, T, E compensating wire per acquisition channel all the way and connect
In 3 common temperature acquisition interfaces of K, T, E of mouth unit.Controller can be to each passage of Thermocouple Temperature Acquisition module
It is configured, by the control to phasing meter, realizes the real-time collection to multichannel T, K, E type thermocouple.
As shown in Fig. 2 described universal signal acquisition module (normal voltage acquisition module, normalized current acquisition module and
Thermocouple Temperature Acquisition module) include：Signal-regulated kinase, A/D modular converters, electrical isolation module, FPGA data processing mould
Block, bus communication module and power module；Signal-regulated kinase is amplified to sensor assembly output signal, A/D moduluss of conversion
Block is connected transmission with electrical isolation module per the data signal after road sign calibration signal A/D conversions, electrical isolation module and FPGA numbers
Data message after each channel acquisition electrical isolation of transmission that is connected according to processing module, FPGA data processing module and bus communication mould
Block, which is connected, transmits control information and the multichannel data information after processing, bus communication module and backboard unit internal communication bus phase
Even, for the communication with controller, power module provides power supply for coupled module.Device is by multiple multi-channel serial A/
D modular converters 10 are constituted, and the concurrent working simultaneously of multiple converters is realized by FPGA data processing module 12, are ensureing data
Sampling rate is greatly improved while acquisition precision.Universal signal acquisition module, as control chip, is passed through using FPGA
Logic and SECO are realized in Verilog Programming with Pascal Language.Such as need to increase acquisition channel, it is only necessary to which expanding data collecting unit is
Can.
Described power isolation module includes：Linear direct current regulated power supply and isolation module, linear direct current regulated power supply lead to
Cross the power bus of backboard unit and provide excitation power supply for universal signal acquisition module, it is ensured that its normal work.Isolation module is adopted
2DS5, output voltage 24V are obtained with firm, it is connected output multi-channel voltage signal with linear direct current regulated power supply, is that each is passed
Sensor is individually powered, and power isolation module is effectively isolated to the power supply between sensor, has broken away from the letter between each passage
Number interference.
Described interface unit and universal signal acquisition module are connected transmission sensing by signal wire and K, T, E compensating wire
The data message of device collection, is connected transmission sensor supply voltage signal with power isolation module by power line.Voltage, electric current
Multiplexing electric interfaces are XS12K4P standard connectors, and the electric interfaces of the same passage of T, K, E type time-sharing multiplex are 2 needle thermocouples
Small plug.
Described sensor assembly is made up of polytype sensor, including 0~5V of outputting standard signal sensor,
4~20mA of outputting standard signal sensor and T, K, E type thermocouple sensor, it passes through sensor connecting line with interface unit
The standard connector of cable, which is connected, transmits the data message of collection.
As shown in figure 3, the air plug definition of standard electric signal sampling channel, electric interfaces are XS12K4P, the 1st core：Voltage is believed
Number+, the 2nd core：+ 24VDC powers, the 3rd core：Current signal+, the 4th core：Power supply, signal ground.
As shown in figure 4,3 line voltage sensors access adopting for DLT signal pickup assembly rear board by wiring diagram
Collect on passage, show that respective channel is adopted after linearly or nonlinearly being handled voltage signal by data acquisition software on the controller
The parameter value collected.
As shown in figure 5,2 line amperometric sensors access adopting for DLT signal pickup assembly rear board by wiring diagram
Collect on passage, on the controller by data acquisition software to showing that respective channel is adopted after current signal linear or Nonlinear Processing
The parameter value collected.
It is different according to the type of thermocouple sensor, the thermocouple of respective type is inserted into corresponding thermocouple acquisition channel
On, different thermocouple junction colors is different, and K-type thermocouple junction is yellow, and T thermocouple junctions are blueness, and E type thermoelectricity is coupled
Head is purple.Synchronization, same passage can only gather the thermocouple of a type (K/T/E), will on data acquisition software
The temperature value that respective channel is collected can be shown.
Claims (10)
1. a kind of DLT signal pickup assembly based on bus, it is characterised in that：Including controller, 1394 data conversion moulds
Block, KVM, backboard unit, universal signal acquisition module, power isolation module, interface unit, sensor assembly；Controller with
1394 data conversion modules, which are connected, transmits 1394 protocol data informations, and controller is connected with KVM transmits video display information, backboard
Unit is connected with 1394 data conversion modules, and backboard unit and universal signal acquisition module are connected transmission by 1394 communication bus
Control information and universal signal acquisition module output data information, universal signal acquisition module and interface unit by signal wire and
Compensation lead of thermocouple is connected the data message of transmission collection, and power isolation module and interface unit are connected transmission by power line
Sensor supply voltage signal, sensor assembly is connected with interface unit transmits the data message of collection.
2. the DLT signal pickup assembly according to claim 1 based on bus, it is characterised in that：Described control
Device and 1394 data conversion modules are connected 1394 protocol data informations of transmission by pci interface, controller and KVM by VGA or
Person DVI is connected with USB data line transmits video display information；Controller will cover universal signal acquisition module more by bus to be carried out
Series connection.
3. the DLT signal pickup assembly according to claim 1 based on bus, it is characterised in that：Described 1394
Data conversion module is turned in IEEE 1394b capture cards, the PCI slot for being inserted into controller main frame from PCI, passes through 1394 connections
Line be connected with backboard unit transmission control information and gather data message；1394 data conversion modules believe the data received
Exported after number being changed according to 1394 agreements.
4. the DLT signal pickup assembly according to claim 1 based on bus, it is characterised in that：Described KVM
Including display and keyboard and mouse, KVM connects controller by VGA or DVI interface.
5. the DLT signal pickup assembly according to claim 1 based on bus, it is characterised in that：Described backboard
Unit includes emulation bus, digital communication/controlling bus, power bus and bus communication interface, is used as connection controller and logical
With the bridge of signal acquisition module, measured signal is interconnected by emulation bus；Controlled by digital communication/controlling bus
Device is sent to universal signal acquisition module orders and receives measurement data；The power supply of universal signal acquisition module passes through power bus
There is provided, backboard unit is connected by bus communication Interface and Controler to be communicated.
6. the DLT signal pickup assembly according to claim 1 based on bus, it is characterised in that：Described is general
Signal acquisition module is divided into normal voltage acquisition module, normalized current acquisition module and Thermocouple Temperature Acquisition module；Standard electric
Acquisition module and normalized current acquisition module are pressed, interface unit is connected to by signal wire per voltage and current acquisition channel all the way
Same universal telecommunication interface on；Thermocouple Temperature Acquisition module, passes through K, T, E compensating wire point per acquisition channel all the way
It is not connected in K, T, E3 of interface unit common temperature acquisition interfaces；Controller is each to Thermocouple Temperature Acquisition module
Passage is configured, and by the control to phasing meter, realizes the real-time collection to multichannel T, K, E type thermocouple.
7. the DLT signal pickup assembly according to claim 6 based on bus, it is characterised in that：Described standard
Voltage acquisition module, normalized current acquisition module and Thermocouple Temperature Acquisition module include：Signal-regulated kinase, A/D conversions
Module, electrical isolation module, FPGA data processing module, bus communication module and power module；Signal-regulated kinase is to sensing
Device module output signal is amplified, after A/D modular converters are connected transmission with electrical isolation module per road sign calibration signal A/D conversions
Data signal, electrical isolation module is connected the data letter after each channel acquisition electrical isolation of transmission with FPGA data processing module
Breath, FPGA data processing module be connected with bus communication module transmit control information and handle after multichannel data information, bus
Communication module is connected with backboard unit internal digital communication/controlling bus, for being communicated with controller, and power module is and its phase
Module even provides power supply；By the multiple multi-channel serial A/D modular converters of FPGA data processing modules implement while parallel work
Make.
8. the DLT signal pickup assembly according to claim 1 based on bus, it is characterised in that：Described interface
Unit and universal signal acquisition module are connected the data message that transmission sensor gathers by signal wire and K, T, E compensating wire,
Interface unit and power isolation module are connected transmission sensor supply voltage signal by power line.
9. the DLT signal pickup assembly according to claim 1 based on bus, it is characterised in that：Described sensing
Device module is made up of polytype sensor, including 0~5V of outputting standard signal sensor, outputting standard signal 4~
20mA sensor and T, K, E type thermocouple sensor, the standard connector that it passes through sensor connection cables with interface unit
The data message that the transmission that is connected is gathered.
10. the DLT signal pickup assembly according to claim 1 based on bus, it is characterised in that：Described electricity
Source isolation module includes linear direct current regulated power supply and isolation module, and linear direct current regulated power supply is total by the power supply of backboard unit
Line provides excitation power supply for universal signal acquisition module, and isolation module is connected output multi-channel voltage letter with linear direct current regulated power supply
Number, it is that each sensor is individually powered, power isolation module is effectively isolated to the power supply between sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621303091.7U CN206339849U (en) | 2016-11-30 | 2016-11-30 | A kind of DLT signal pickup assembly based on bus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621303091.7U CN206339849U (en) | 2016-11-30 | 2016-11-30 | A kind of DLT signal pickup assembly based on bus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206339849U true CN206339849U (en) | 2017-07-18 |
Family
ID=59308415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621303091.7U Active CN206339849U (en) | 2016-11-30 | 2016-11-30 | A kind of DLT signal pickup assembly based on bus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206339849U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108121248A (en) * | 2016-11-30 | 2018-06-05 | 北京航天计量测试技术研究所 | A kind of general signal pickup assembly of multichannel based on bus |
| CN108490842A (en) * | 2018-05-04 | 2018-09-04 | 中国核动力研究设计院 | A kind of dynamic diagnostic device and method of multichannel ADC crosstalks |
| WO2024044976A1 (en) * | 2022-08-30 | 2024-03-07 | 西门子股份公司 | Data acquisition apparatus, method and system, electronic device, and storage medium |
-
2016
- 2016-11-30 CN CN201621303091.7U patent/CN206339849U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108121248A (en) * | 2016-11-30 | 2018-06-05 | 北京航天计量测试技术研究所 | A kind of general signal pickup assembly of multichannel based on bus |
| CN108490842A (en) * | 2018-05-04 | 2018-09-04 | 中国核动力研究设计院 | A kind of dynamic diagnostic device and method of multichannel ADC crosstalks |
| CN108490842B (en) * | 2018-05-04 | 2019-10-18 | 中国核动力研究设计院 | A kind of dynamic diagnostic device and method of multichannel ADC crosstalk |
| WO2024044976A1 (en) * | 2022-08-30 | 2024-03-07 | 西门子股份公司 | Data acquisition apparatus, method and system, electronic device, and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108121248A (en) | A kind of general signal pickup assembly of multichannel based on bus | |
| CN106463877B (en) | Plug-in connector system | |
| CN206339849U (en) | A kind of DLT signal pickup assembly based on bus | |
| CN102297730A (en) | Multi-channel general temperature measurement module | |
| CN111142008B (en) | Circuit board power parameter testing system and method | |
| CN204301877U (en) | A kind of multi-channel digital temperature acquisition system | |
| CN106595892A (en) | Multichannel integrated temperature converter | |
| CN107505059A (en) | A kind of welding process detection device and welding parameter acquisition method | |
| CN108303191A (en) | Multi-channel temperature acquisition device and system | |
| CN104569854A (en) | Multi-channel power supply detecting system | |
| CN211878121U (en) | Circuit board power parameter testing equipment and system | |
| CN207337108U (en) | Multi-path pressure data acquisition circuit and multi-path pressure data acquisition device | |
| CN202382877U (en) | Intrinsic safety temperature routing inspection device for mine | |
| CN209784791U (en) | Sensing data acquisition and processing system | |
| CN104697583B (en) | Separable engineering safety monitoring data collector | |
| CN204679103U (en) | Detachable project security monitoring data acquisition unit | |
| CN205262630U (en) | High accuracy multichannel temperature acquisition device | |
| CN113485183A (en) | Serial signal acquisition output control device based on PCI bus protocol | |
| CN109922096B (en) | Communication system with multiple sensor universal interfaces | |
| CN219285327U (en) | Main control circuit board detection device | |
| CN210839532U (en) | Extension AD sampling device | |
| CN205246130U (en) | Humiture acquisition terminal based on temperature is complementary | |
| CN215867610U (en) | Constant temperature heating control system | |
| CN215526438U (en) | Multiplex signal transmission device | |
| CN107576838A (en) | A kind of parallel differential data acquisition device and collecting method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |