CN109932940A - Multi channel signals synchronous acquisition storage system - Google Patents
Multi channel signals synchronous acquisition storage system Download PDFInfo
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Abstract
A kind of multi channel signals synchronous acquisition storage system is disclosed in the present invention, including multi-channel signal processing unit, control unit and storage unit, the multi-channel signal processing unit includes multi-center selection circuit and signal conditioning circuit, the multi-center selection circuit carries out selecting to send to signal conditioning circuit in turn to handle using analog switch to each channel acquisition signal, the signal conditioning circuit includes amplifying circuit, the multi-center selection circuit connection signal conditioning circuit, signal conditioning circuit connects control unit, described control unit uses DSC controller, the signal memory cell includes ECC check module and memory module, the ECC check module and memory module are separately connected control unit.System uses multi-channel signal processing unit and DSC controller, realizes that the selection to each channel acquisition signal is handled, and improves the ability of system signal acquisition and processing；It is provided simultaneously using ECC check module by the reliability in system data storage, transmission process.
Description
Technical field
The present invention relates to data acquisition technology field, in particular to a kind of multi channel signals synchronous acquisition storage system.
Background technique
With the continuous development of Computerized intelligent and integrated technology, used sensor or inductor in system
Quantity is more and more, higher and higher to the acquisition precision and information quantity requirement of data, generally requires to be realized simultaneously to multichannel data
While acquire and processing.Currently, as the continuous research and development of data acquisition technology is, it can be achieved that multi-channel synchronous data are adopted
The technology of collection has very much, including the data collection system using USB single-chip microcontroller and synchronized sampling chip, this design scheme structure
Simply, but data use Serial output, and sample rate is low, is not suitable for the occasion of high-speed real-time sampling；Using arm processor, USB
The data collection system of interface chip and synchronized sampling chip, this design scheme integrated level is not high, designs more complex；Using height
Performance FPGA/CPLD is acquired as the data of the timing sequencer and logic controller of synchronized sampling chip and USB interface chip
System, this design scheme is more complex, debugs relatively difficult.
Summary of the invention
It is an object of the invention to solve the above-mentioned technical problems in the prior art, it is same to provide a kind of multi channel signals
Walk acquisition and memory system.
In order to solve the above technical problems, The technical solution adopted by the invention is as follows:
Multi channel signals synchronous acquisition storage system, including multi-channel signal processing unit, control unit and storage unit,
The multi-channel signal processing unit includes multi-center selection circuit and signal conditioning circuit, and the multi-center selection circuit uses
Analog switch carries out selecting to send to signal conditioning circuit in turn to handle to each channel acquisition signal, the signal conditioning circuit
Including amplifying circuit, the multi-center selection circuit connection signal conditioning circuit, signal conditioning circuit connects control unit, described
Control unit uses DSC controller, and the signal memory cell includes ECC check module and memory module, the ECC check mould
Block and memory module are separately connected control unit.
In above-mentioned technical proposal, further, the analog switch uses CD4052BE simulant electronic switch.
In above-mentioned technical proposal, further, the amplifying circuit uses AD620 chip.
In above-mentioned technical proposal, further, described control unit is connected to host computer by USB communication interface.
The present invention uses multi-channel signal processing unit and DSC controller, realizes at the selection to each channel acquisition signal
Reason improves the ability of system signal acquisition and processing；It is provided simultaneously using ECC check module by system data storage, transmission
Reliability in the process.
Detailed description of the invention
Fig. 1 is present system structural schematic diagram.
Fig. 2 is multi-center selection circuit circuit diagram in the present invention.
Specific embodiment
The present invention is further illustrated in the following with reference to the drawings and specific embodiments.
Such as Fig. 1, multi channel signals synchronous acquisition storage system in the present embodiment, including multi-channel signal processing unit,
Control unit and storage unit, the multi-channel signal processing unit include multi-center selection circuit and signal conditioning circuit, institute
It states multi-center selection circuit and each channel acquisition signal is carried out selecting to send to signal conditioning circuit in turn carrying out using analog switch
Processing, the signal conditioning circuit includes amplifying circuit, it is preferable that amplifying circuit uses AD620 chip.Multi-center selection circuit
Connection signal conditioning circuit, signal conditioning circuit connect control unit, and control unit uses DSC controller, signal memory cell
Including ECC check module and memory module, ECC check module and memory module are separately connected control unit.
Multi-channel signal processing unit includes multi-center selection circuit, and multi-center selection circuit is using analog switch to each logical
Road acquisition signal carries out selecting to send to A/D conversion circuit in turn to be converted.Analog switch is opened using CD4052BE simulation electronic
It closes, as shown in Fig. 2, the selection in channel controls two pin levels of AB by DSC controller to realize, the signal chosen is then from IN
+ and two pins submittings of IN-；Identical circuit can be increased according to actual needs to extend signal sampling channel quantity, every increasing
Add one piece of simulant electronic switch chip is expansible to obtain 4 channels, while only needing one I/0 mouthfuls of use of DSC controller overabsorption
Selection in channel controls signal.
Signal after after conditioning is input to the ADC converter of DSC controller, is equipped with 4 ADC converters in DSC controller,
16 road external analog input signals can be at most connected, analog input channel realizes that data are adopted by being incorporated into regular group or injection group
Collect function.Independent ADC ADC1 and ADC2 in working in double modes forms one group, and ADC3 and ADC4 are formed one in two groups, every group
A is main ADC, and one is from ADC；Each ADC has 4 kinds of sampling configuration selections: single, continuous, scanning and interruption mould again when work
Formula, but when working in double mode, main ADC sampling configuration is obeyed from ADC sampling configuration, and principal and subordinate ADC supports synchrodata
Acquisition.When two groups of ADC are under the same trigger signal and the driving of identical clock, so that it may realize that four-way track data synchronizes and adopt
Collection.
In the present embodiment, signal memory cell includes ECC check module and memory module, ECC check module and storage mould
Block is separately connected DSC controller.System data storage, the reliability in transmission process can be improved in ECC check module.The letter of acquisition
After number entering DSC controller, DSC controller sends instruction, and operation timing of memory module and control signal change, pass through
Waiting signal is dragged down, data carry out write operation, before memory module is written in data, need to integrate data, be sent to the school ECC
Module is tested, corresponding check code is generated and is fed to memory module together with data, wherein useful data are stored in data
Area, ECC check code storage to backup memory block.ECC check module is in the effect and storage operation in data read operation
Effect is consistent, and the data read from memory module are sent to ECC check module by DSC controller, and ECC check module counts these
According to being handled to obtain check code, DSC controller reads the ECC check code of backup memory block from memory module, by two kinds of schools
Code is tested to be compared.Safety of the system data in storage, transmission process can provide using ECC module, to improve system
The reliability of data acquisition.
The description and the appended drawings of the invention be considered as it is illustrative and not restrictive, on the basis of the present invention, ability
According to disclosed technology contents, some of technical characteristics can be made field technique personnel by not needing creative labor
Some replacements and deformation, are within the scope of the invention.
Claims (4)
1. multi channel signals synchronous acquisition storage system, it is characterised in that: including multi-channel signal processing unit, control unit and
Storage unit, the multi-channel signal processing unit include multi-center selection circuit and signal conditioning circuit, the multichannel choosing
It selects circuit and each channel acquisition signal is carried out selecting to send to signal conditioning circuit in turn to handle using analog switch, the letter
Number conditioning circuit includes amplifying circuit, the multi-center selection circuit connection signal conditioning circuit, signal conditioning circuit connection control
Unit processed, described control unit use DSC controller, and the signal memory cell includes ECC check module and memory module, institute
It states ECC check module and memory module is separately connected control unit.
2. multi channel signals synchronous acquisition storage system according to claim 1, it is characterised in that: the analog switch is adopted
With CD4052BE simulant electronic switch.
3. multi channel signals synchronous acquisition storage system according to claim 1, it is characterised in that: the amplifying circuit is adopted
With AD620 chip.
4. multi channel signals synchronous acquisition storage system according to claim 1, it is characterised in that: described control unit is logical
It crosses USB communication interface and is connected to host computer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711348838.XA CN109932940A (en) | 2017-12-15 | 2017-12-15 | Multi channel signals synchronous acquisition storage system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711348838.XA CN109932940A (en) | 2017-12-15 | 2017-12-15 | Multi channel signals synchronous acquisition storage system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111856993A (en) * | 2020-06-24 | 2020-10-30 | 杭州仁牧科技有限公司 | Analog signal multichannel synchronous acquisition system and acquisition method thereof |
Citations (2)
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|---|---|---|---|---|
| CN102261929A (en) * | 2010-07-02 | 2011-11-30 | 北京信息科技大学 | Small multi-channel data recorder |
| CN107367985A (en) * | 2017-07-27 | 2017-11-21 | 安徽工程大学 | A kind of Multichannel Real-time Data Acguisition System |
-
2017
- 2017-12-15 CN CN201711348838.XA patent/CN109932940A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102261929A (en) * | 2010-07-02 | 2011-11-30 | 北京信息科技大学 | Small multi-channel data recorder |
| CN107367985A (en) * | 2017-07-27 | 2017-11-21 | 安徽工程大学 | A kind of Multichannel Real-time Data Acguisition System |
Non-Patent Citations (2)
| Title |
|---|
| 李红波: "DSC的USB多通道同步数据采集系统设计" * |
| 肖永松;: "基于LPC2132的多通道温度控制器设计" * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111856993A (en) * | 2020-06-24 | 2020-10-30 | 杭州仁牧科技有限公司 | Analog signal multichannel synchronous acquisition system and acquisition method thereof |
| CN111856993B (en) * | 2020-06-24 | 2023-12-08 | 杭州仁牧科技有限公司 | Analog signal multichannel synchronous acquisition system and acquisition method thereof |
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Application publication date: 20190625 |