CN205210175U - Data acquisition equipment - Google Patents
Data acquisition equipment Download PDFInfo
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- CN205210175U CN205210175U CN201520984593.XU CN201520984593U CN205210175U CN 205210175 U CN205210175 U CN 205210175U CN 201520984593 U CN201520984593 U CN 201520984593U CN 205210175 U CN205210175 U CN 205210175U
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Abstract
The utility model discloses a data acquisition equipment, its characterized in that data acquisition equipment includes monitoring server, data acquisition unit, the data acquisition unit includes acquisition unit power module and data acquisition module, acquisition unit power module be responsible for for the data acquisition module power supply, data acquisition module includes polylith data collection card, polylith data collection card is connected with multichannel current sensor and multichannel voltage sensor respectively. The utility model has the advantages of: compact structure, the modularized design, the installation dilatation is convenient, remote control, data download can be realized to capture card and the transmission of server adoption ethernet, can monitor arrival current, voltage jump signal, inside shielded cable and the isolation power of adopting, the interference killing feature is strong.
Description
Technical field
The utility model relates to a kind of data acquisition equipment, be specially a data acquisition equipment for the sampling of the analog quantity such as electric current, voltage, it is based on Digital Signal Processing and Programmable logical controller technology, analog signals is sampled, realize analog/digital conversion, row operation process of going forward side by side, can be used for the electric current of intelligent power distribution series products, voltage monitoring, accuracy test, and the function such as pulse data test.
Background technology
Along with the development of aircraft industry, modern Advanced Aircraft is just towards many electricity, complete electric future development, the electric power system of aircraft and distribution system also more voluminous, distributed intelligence distribution has real-time monitor and managment function, feeder line can be reduced, alleviate distribution system weight, started progressively to replace traditional centralized power distribution mode.Intelligent power distribution product mainly contains the functions such as current/voltage monitoring, overcurrent tripping protection, short circuit trip protection, during such product export Acceptance Test, need detect function, the performance index such as the current precision of each passage, voltage accuracy, overcurrent protection, short-circuit protection.Traditional mode adopt the equipment such as High Precision Multimeter, oscillograph one by one passage one by one project complete successively.Like this, examination, the testing efficiency of intelligent power distribution product has been had a strong impact on.
Utility model content
The purpose of this utility model is to provide a kind of data acquisition equipment, realizes the automatic test of intelligent power distribution product, reduces manual intervention, improves the testing efficiency of product.
To achieve these goals, the technical solution of the utility model is: a kind of data acquisition equipment, it is characterized in that described data acquisition equipment comprises monitoring server, described monitoring server is responsible for the data receiving data acquisition unit, and the data received are carried out computing, then again by the data display after process, preservation; Data acquisition unit, described data acquisition unit comprises collecting unit supply module and data acquisition module, and described collecting unit supply module is responsible for powering to described data acquisition module; Described data acquisition module comprises multi-block data capture card, described multi-block data capture card is connected with Multichannel Current Sensor and plurality of voltages sensor respectively, described Multichannel Current Sensor is made up of Hall element, Hall element is responsible for multi-channel DC or AC current collecting, described plurality of voltages sensor is made up of voltage transmitter, and voltage transmitter is responsible for multi-channel DC or AC voltage sampling; Described data collecting card single deck tape-recorder possesses the AD passage input of 16 24, the curtage signal of receiving sensor input, and carries out AD sampling, and sampled data is transferred to monitoring server by Ethernet.
Described data collecting card comprises dsp chip, the fpga chip be connected with dsp chip, described dsp chip is also connected with TCP/IP chip, SDRAM chip and FLASH chip, described fpga chip is connected with AD acquisition module, described AD acquisition module is connected with Multichannel Current Sensor and plurality of voltages sensor, and described fpga chip is also connected with PROM chip.
Wherein dsp chip adopts TMS320C6713, and fpga chip adopts XC3S200A, TCP/IP chip to adopt MD9000, SDRAM chip MT48LC16M16A, FLASH chip adopts SST39VFE601, PROM chip to adopt XCF02S, AD acquisition module then to adopt AD6650 and AD7760.
Multichannel Current Sensor and plurality of voltages sensor are linked into voltage wire by high-performance low loss cable by aviation connector or terminals two kinds of modes and arrange and electric current distribution row, voltage wire row is connected with data collecting card with electric current distribution row, it is in parallel that voltage sensor sampling end and distribution are arranged between terminal, and it is connect that current sensor and distribution are arranged between terminal.
The voltage/current raw data that voltage/current sensor collects exports to data acquisition module, data acquisition module by the data that obtain after algorithm data process, again result data is transferred to Monitoring Service, monitoring server is again by the data conversion storage in database, show data dynamic change situation as requested, logarithm makes marks and highlights, and carries out thresholding warning etc. according to arranging.System possesses not power-off, on-line rapid estimation ability.
The utility model is implemented to control the data such as feedback by Ethernet to multi pass acquisition passage and is cross-linked.According to the speed of test event configuration data capture card; low speed sampling can be realized; middling speed is sampled; high-speed sampling; low speed sampling is used for the more stable electric current of signal, voltage accuracy test; middling speed sampling is used for signal intensity overcurrent protection faster test, and high-speed sampling is tested for the short-circuit protection of sign mutation.
The utility model is based on computer technology, Digital Signal Processing and mechanics of communication, according to test event setting data capture card, the analog signals of collection electric current, voltage sensor front end is converted to digital signal, and is transferred to a set of data acquisition system (DAS) of monitoring server.The automatic test of intelligent power distribution product can be realized in conjunction with equipment such as loads.Advantage of the present utility model has: (1) compact conformation, modular design, and installation dilatation is convenient; (2) capture card and server adopt Ethernet to transmit, and can realize Long-distance Control, data are downloaded; (3) capture card speed is configurable, meets the collection of multiple setting signal; (4) input current, voltage jump signal can be monitored; (5) signal access is convenient, adopts the mode of aviation connector and terminals; (6) inner employing shielded cable and insulating power supply, antijamming capability is strong.
Accompanying drawing explanation
Fig. 1 is circuit block diagram of the present utility model.
Fig. 2 is the circuit diagram of data collecting card.
Embodiment
As shown in Figure 1, a kind of data acquisition equipment, is characterized in that described data acquisition equipment comprises monitoring server, and described monitoring server is responsible for the data receiving data acquisition unit, and the data received are carried out computing, then again by the data display after process, preservation; Data acquisition unit, described data acquisition unit comprises collecting unit supply module and data acquisition module, and described collecting unit supply module is responsible for powering to described data acquisition module; Described data acquisition module comprises multi-block data capture card, described multi-block data capture card is connected with Multichannel Current Sensor and plurality of voltages sensor respectively, described Multichannel Current Sensor is made up of Hall element, Hall element is responsible for multi-channel DC or AC current collecting, described plurality of voltages sensor is made up of voltage transmitter, and voltage transmitter is responsible for multi-channel DC or AC voltage sampling; Described data collecting card single deck tape-recorder possesses the AD passage input of 16 24, the curtage signal of receiving sensor input, and carries out AD sampling, and sampled data is transferred to monitoring server by Ethernet.Collected electric current, voltage signal are incorporated into Hall element and voltage sensor by connector or connection terminal, collection signal is converted to the discernible analog signals of capture card identification by front end sensors, capture card is sampled by AD, be converted to digital signal, then be transferred to monitoring server by Ethernet switch.
Described monitoring server is used for test data, display, data storage and backup, be made up of an industrial computer, be responsible for the data receiving data acquisition unit, and the data received are carried out computing, then again by the data display, preservation etc. after process, and can according to the set operational processes data arranging pattern.
Described data acquisition unit comprises collecting unit supply module and data acquisition module, and described data acquisition module is made up of multi-block data capture card and multichannel electric current, voltage sensor; Described electric current, voltage sensor are made up of Hall element and voltage transmitter respectively, and Hall element is responsible for multi-channel DC or AC current collecting, and voltage transmitter is responsible for multi-channel DC or AC voltage sampling; Described data collecting card single deck tape-recorder possesses the AD passage input of 16 24, electric current, the voltage signal of receiving sensor input, and carries out AD sampling, and sampled data is transferred to monitoring server by Ethernet.Data collecting card adopts the signal resolution ability of 24, is up to 2M/S sampling rate, utilizes its characteristic, coordinates voltage, current sensor can sample abnormal signal as measurand power on/off moment overload signal, short-circuit signal, surging signal etc.; Described collecting unit supply module provides different electric pressure, powers respectively to Hall element, voltage transmitter, and power supply respectively isolation and amplifier gives each sensor, powers, possess overload protection function simultaneously to data acquisition module circuit.
In figure, data acquisition unit comprises multi-block data capture card, polylith voltage wire row and polylith electric current distribution row, and described voltage wire row and electric current distribution row for accessing electric current, voltage sensor signals, and are sent to data collecting card.Voltage/current signals introduces collecting device by aviation connector or connection terminal.
The utility model is implemented to control the data such as feedback by Ethernet to multi pass acquisition passage and is cross-linked.According to the speed of test event configuration data capture card; low speed sampling can be realized; middling speed is sampled; high-speed sampling; low speed sampling is used for the more stable electric current of signal, voltage accuracy test; middling speed sampling is used for signal intensity overcurrent protection faster test, and high-speed sampling is tested for the short-circuit protection of sign mutation.
The utility model is based on computer technology, Digital Signal Processing and mechanics of communication, according to test event setting data capture card, the analog signals of collection electric current, voltage sensor front end is converted to digital signal, and is transferred to a set of data acquisition system (DAS) of monitoring server.The automatic test of intelligent power distribution product can be realized in conjunction with equipment such as loads.Advantage of the present utility model has: (1) compact conformation, modular design, and installation dilatation is convenient; (2) capture card and server adopt Ethernet to transmit, and can realize Long-distance Control, data are downloaded; (3) capture card speed is configurable, meets the collection of multiple setting signal; (4) input current, voltage jump signal can be monitored; (5) signal access is convenient, adopts the mode of aviation connector and terminals; (6) inner employing shielded cable and insulating power supply, antijamming capability is strong.
Tile type power model of the present utility model achieves:
A, under () low speed sampling pattern, gather the d. c. voltage signal precision reported and be not more than 5 ‰, ac voltage signal precision is not more than 1%; Current signal precision is not more than 2%;
Under (b) middling speed sampling pattern, the current waveform that duration is not more than 30s, width is not less than 30us can be gathered, and calculate current amplitude and exceed the time width of setting threshold values part and the multiple (being accurate to 2 significant digits) of current value off-rating during this period of time;
Under (c) quick sampling pattern, the current impulse that width is not less than 30us can be gathered, and calculate the time width (being accurate to 2 significant digits) of pulse.
Current signal comprises direct current, interchange, pulse, mixed signal etc., and for make measuring circuit main circuit and secondary circuit completely isolated, current signal by Hall element realize gather.Consider that heavy current pulse impacts, single channel Hall element maximum range should be this passage rated current specification more than 15 times.Voltage signal, because of without large voltge surge, selects voltage sensor by rated voltage, and measuring circuit main circuit and secondary circuit must be completely isolated.
Data acquisition module is made up of 11 pieces of hot swap type data collecting cards.Hot swap type data collecting card accomplishes the normalizing of electrical quantity sensor (Hall element, voltage transmitter) power supply port and signal, and probe power need not wiring in addition, decreases a large amount of joints and line, very simply, easily identifies.
Data acquisition unit adopts draw and insert-type structure, inserts in 19 inch standard machine frames successively, easy to maintenance, supports hot plug, can not shut down, charged data collecting card of choosing.
Each capture card can realize the AD passage input that can gather 16 groups 24 simultaneously, passage average sample speed 1MS/s, the maximum sampling rate 2.5MS/s of single port, can provide 16 groups of positive 15V, negative 15V voltage output simultaneously.Each sensor is a corresponding socket just, and power supply and signal return 11 port, and port is many more also can be disposed quite neatly be easy to identify, and maintenance is by very convenient.
Voltage, be connected with band shielded cable between current sensor with data collecting card, shielded cable one end connects with capture card 4PIN aviation head, and the shielded cable other end connects with voltage, current sensor and uses 4PIN cable splice.In 4PIN, a core is signal, and another three cores are positive and negative VDD-to-VSS line.
Collected voltage, current signal are incorporated into voltage wire by high-performance low loss cable and arrange and electric current distribution row.It is in parallel that voltage sensor sampling end and distribution are arranged between terminal, and it is connect that current sensor and distribution are arranged between terminal.
Fig. 2 is the circuit diagram of data collecting card.Draw and insert-type data collecting card uses DSP+FPGA hardware structure, described data collecting card comprises dsp chip, the fpga chip be connected with dsp chip, described dsp chip is also connected with TCP/IP chip, SDRAM chip and FLASH chip, and described fpga chip is connected with AD acquisition module and PROM chip.Wherein dsp chip adopts TMS320C6713, and fpga chip adopts XC3S200A, TCP/IP chip to adopt MD9000, SDRAM chip MT48LC16M16A, FLASH chip adopts SST39VFE601, PROM chip to adopt XCF02S, AD acquisition module then to adopt AD6650 and AD7760.Capture card output is the Ethernet interface of 100M, is convenient to connect at a high speed, and every sheet data card, all for working alone, supports hot plug.
Novel capture card is integrated with data collection and analysis processing capacity, and its data exported are exactly directly to be saved in the data of server database.
Data acquisition equipment signals collecting is primarily of monitoring server implement software.The real-time reception of capture program in server from 175 circuit-switched data of data card, by algorithm filtering, calculating, average.By the data that obtain with in the database of the speed of single channel 500ms write monitoring server, also synchronous same circuit-switched data can be connected into the display of performance graph collection of illustrative plates by speed write data faster.But human eye is to easily tired faster than 300ms refreshing frequency display things and do not see, thus twice display update per second and be comparatively suitable speed to database write, and the database file byte capacity that record generates can not be huge especially.
Collection signal data pattern be divided into two classes: full tunnel collection and single channel collection.Full tunnel collection is used in general function and performance test; Single channel collection is used in short-circuit protection test or overcurrent protection test.
In two class drainage patterns, the frequency acquisition for each passage all can select independent configuration, is respectively used to low speed sampling, middling speed sampling, high-speed sampling.
The display mode of signal data is based on form, and graphics mode is for assisting.Main interface is form, has dynamic-configuration form function, as needed the port number of display, the load current value etc. of each passage.
The electric current of display in form and magnitude of voltage are each result upgraded, and the data be updated store in a database, provide convenience for data fitting becomes figure and calls.
Figure display is with reference to oscillograph pattern, figure can partial enlargement, reduce, there is the cursor such as time, voltage test function, there is time adjustment, range-adjusting function, there is holdon function, there is the functions such as graphics saving, there is function in addition that show this data point information by a certain data point of mouse-click.
The signal data display mode of full tunnel: when selecting a certain passage, this passage can graphically real-time update data, as the auto mode real-time update data in oscillograph.
Single pass signal data display mode: this passage can graphically in real time with new data.
Below only have expressed embodiment of the present utility model, it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to utility model patent scope.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (4)
1. a data acquisition equipment, it is characterized in that described data acquisition equipment comprises monitoring server, described monitoring server is responsible for the data receiving data acquisition unit, and the data received are carried out computing, then again by the data display after process, preservation; Data acquisition unit, described data acquisition unit comprises collecting unit supply module and data acquisition module, and described collecting unit supply module is responsible for powering to described data acquisition module; Described data acquisition module comprises multi-block data capture card, described multi-block data capture card is connected with Multichannel Current Sensor and plurality of voltages sensor respectively, described Multichannel Current Sensor is made up of Hall element, Hall element is responsible for multi-channel DC or AC current collecting, described plurality of voltages sensor is made up of voltage transmitter, and voltage transmitter is responsible for multi-channel DC or AC voltage sampling; Described data collecting card single deck tape-recorder possesses the AD passage input of 16 24, the curtage signal of receiving sensor input, and carries out AD sampling, and sampled data is transferred to monitoring server by Ethernet.
2. data acquisition equipment as claimed in claim 1, it is characterized in that described data collecting card comprises dsp chip, the fpga chip be connected with dsp chip, described dsp chip is also connected with TCP/IP chip, SDRAM chip and FLASH chip, described fpga chip is connected with AD acquisition module, described AD acquisition module is connected with Multichannel Current Sensor and plurality of voltages sensor, and described fpga chip is also connected with PROM chip.
3. data acquisition equipment as claimed in claim 2, it is characterized in that wherein dsp chip adopts TMS320C6713, fpga chip adopts XC3S200A, TCP/IP chip adopts MD9000, SDRAM chip MT48LC16M16A, FLASH chip adopts SST39VFE601, PROM chip to adopt XCF02S, AD acquisition module then to adopt AD6650 and AD7760.
4. data acquisition equipment as claimed in claim 1, it is characterized in that Multichannel Current Sensor and plurality of voltages sensor are linked into voltage wire by high-performance low loss cable by aviation connector or terminals two kinds of modes and arrange and electric current distribution row, voltage wire row is connected with data collecting card with electric current distribution row, it is in parallel that voltage sensor sampling end and distribution are arranged between terminal, and it is connect that current sensor and distribution are arranged between terminal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520984593.XU CN205210175U (en) | 2015-12-02 | 2015-12-02 | Data acquisition equipment |
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| CN201520984593.XU CN205210175U (en) | 2015-12-02 | 2015-12-02 | Data acquisition equipment |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109085403A (en) * | 2017-06-14 | 2018-12-25 | 北京普源精电科技有限公司 | A kind of method of adjustment and digital oscilloscope of undulating path |
| CN109360395A (en) * | 2018-08-24 | 2019-02-19 | 深圳市信锐网科技术有限公司 | A kind of data acquisition equipment |
| CN113093696A (en) * | 2021-03-26 | 2021-07-09 | 中国舰船研究设计中心 | Marine miniaturized distributing type acquisition control device |
| CN113721486A (en) * | 2021-07-30 | 2021-11-30 | 中国航空工业集团公司沈阳飞机设计研究所 | Multichannel variable frequency signal acquisition system and method thereof |
| CN113721486B (en) * | 2021-07-30 | 2024-04-19 | 中国航空工业集团公司沈阳飞机设计研究所 | Multichannel variable frequency signal acquisition system and method thereof |
-
2015
- 2015-12-02 CN CN201520984593.XU patent/CN205210175U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109085403A (en) * | 2017-06-14 | 2018-12-25 | 北京普源精电科技有限公司 | A kind of method of adjustment and digital oscilloscope of undulating path |
| CN109085403B (en) * | 2017-06-14 | 2021-07-30 | 北京普源精电科技有限公司 | Waveform channel adjusting method and digital oscilloscope |
| CN109360395A (en) * | 2018-08-24 | 2019-02-19 | 深圳市信锐网科技术有限公司 | A kind of data acquisition equipment |
| CN113093696A (en) * | 2021-03-26 | 2021-07-09 | 中国舰船研究设计中心 | Marine miniaturized distributing type acquisition control device |
| CN113721486A (en) * | 2021-07-30 | 2021-11-30 | 中国航空工业集团公司沈阳飞机设计研究所 | Multichannel variable frequency signal acquisition system and method thereof |
| CN113721486B (en) * | 2021-07-30 | 2024-04-19 | 中国航空工业集团公司沈阳飞机设计研究所 | Multichannel variable frequency signal acquisition system and method thereof |
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Effective date of registration: 20220321 Address after: 201514 floor 3, building 3, No. 368 Huida Road, Zhangyan Town, Jinshan District, Shanghai Patentee after: SHANGHAI HANGKAI ELECTRONIC TECHNOLOGY Co.,Ltd. Address before: 201101 No. 6629 Zhong Chun Road, Shanghai, Minhang District Patentee before: SHANGHAI AVIATION ELECTRIC Co.,Ltd. |