CN208722402U - A kind of multichannel blended data acquisition module - Google Patents
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Abstract
A kind of multichannel blended data acquisition module, including power supply unit, rapid data collection unit, high-accuracy data acquisition unit, main control unit and rapid data transmission unit；Rapid data collection unit is for being acquired low-speed sensor signal, and collected low-speed sensor signal is converted into analog signal, collected height sensors signal is converted to analog signal for being acquired to height sensors signal by high-accuracy data acquisition unit；Rapid data collection unit, high-accuracy data acquisition unit are electrically connected with main control unit, multi-channel data interface respectively, and rapid data transmission unit is electrically connected with main control unit；The data-signal that main control unit is controlled and received for realizing signal is handled；Rapid data transmission unit will be transferred to upper layer device by signal after treatment.The utility model can shorten data collection cycle, improve the real-time and data exchange velocity of data acquisition.
Description
Technical field
The utility model relates to a kind of data processing modules, are applied to multi-channel high-accuracy rapid data collection occasion, especially
It is related to a kind of multichannel blended data acquisition module.
Background technique
With Information Technology Development, the requirement of high-precision rapid data collection is higher and higher, and multi pass acquisition is in analog signal number
It is used according to acquisition occasion extensive.
In most of occasions, data acquisition is usually not only all the way that multichannel data uses multiple individual acquisition modules
It is acquired, due to there is multi-data processing, there are data collection cycle length, real-time for existing multi pass acquisition module
Difference, the problems such as data exchange is slow；Meanwhile it also cannot achieve the quick and high precision collecting of multi-channel data.
As Chinese patent (Authorization Notice No. CN 103458535B) discloses " a kind of low-power consumption weak signal data acquisition with
Wireless transport module ".It includes two parts: first is that data collection system, including the charging of main control MCU module, lithium battery and electricity
Source control module, voltage and current signal multichannel collecting module, electric current and voltage signal amplify automatic growth control module, height
Precision small-signal acquisition module, wireless and wire transmission module and synchronous data sampling, transimission and storage unit；Second is that interface
Module is made of connecting terminal；Entire data collection system is encapsulated in a shielding case, and interface module passes through 4 groups of connectors
It is connected thereto, they are integrally encapsulated in metal shell again.
If Chinese patent (application publication number CN103336667A) discloses " a kind of general multi-channel data collection system ",
Including capture card and main control card, the analog signal that capture card acquisition sensor transmits, and collection of simulant signal is converted into number
Signal, main control card carry out noise-removed filtering to the data in digital signal, complete the real time correction of data, host computer and master control
Card connection is written configuration information from main control card, realizes the control to work whole system.The analog-to-digital conversion module of capture card is by mould
Quasi- signal is converted into digital signal, and the photoelectric isolation module of capture card is by the analog portion and digital section of entire data collection system
That divides is completely isolated, so that the transmission of analog signal not will receive the interference of noise in digital circuit.Use photoelectric isolation module
Reduce influence of the noise of analog portion to numerical portion, the precision voltage source module of capture card reduces the influence of power supply noise, adopts
The phase-locked loop module of truck guarantees the Phase synchronization of clock signal between capture card.
The data acquisition module or system of above-mentioned multichannel, structure is complex, can not still solve data collection cycle
Long, the problems such as real-time is poor, data exchange is slow.
Utility model content
The utility model provides a kind of multichannel blended data acquisition module, for solving existing data acquisition device effect
The problem of rate is lower and cannot achieve mixing acquisition.
The utility model is achieved by the following technical programs:
A kind of multichannel blended data acquisition module, including power supply unit, rapid data collection unit, high accuracy data are adopted
Collect unit, main control unit and rapid data transmission unit；The power supply unit is rapid data collection unit, high accuracy data is adopted
Collect unit, main control unit power supply；
The rapid data collection unit senses collected low speed for being acquired to low-speed sensor signal
Device signal is converted to analog signal, and the high-accuracy data acquisition unit is used to be acquired height sensors signal, and will
Collected height sensors signal is converted to analog signal；
The rapid data collection unit, high-accuracy data acquisition unit respectively with main control unit, multi-channel data interface
Electrical connection, the rapid data transmission unit are electrically connected with main control unit；
The main control unit is used for fast data acquisition unit, high-accuracy data acquisition unit, rapid data transmission unit
Realize that signal control and the data-signal received are handled；
The rapid data transmission unit by after treatment low-speed sensor signal and height sensors signal transmit
To upper layer device.
A kind of multichannel blended data acquisition module as described above, the power supply unit provide DC12V, DC5V two-way and supply
Electricity, power supply unit are all made of filtering processing when outputting and inputting, to guarantee the reliability of power supply unit power supply.
Further, a kind of multichannel blended data acquisition module as described above, the power supply unit include simulation electricity
Source and digital power, digital power are that the main control unit and rapid data transmission unit are powered, and analog power is described quick
Data acquisition unit and the power supply of high-accuracy data acquisition unit.
A kind of multichannel blended data acquisition module as described above, the rapid data collection unit utilize 16 AD cores
Piece carries out multichannel collecting processing；Shown high-accuracy data acquisition unit is carried out multi channel signals using 24 A/D chips high-precision
The data of degree acquire.
Further, a kind of multichannel blended data acquisition module as described above, the rapid data collection unit will
Low-speed sensor signal is handled by filtering, amplifying circuit to 16 A/D chips, to realize multi-channel data Quick Acquisition；It is described
Accuracy data acquisition unit send height sensors signal to 24 A/D chips by filtering, amplifying circuit, to realize that single channel is logical
The processing of track data high precision collecting.
Further, a kind of multichannel blended data acquisition module as described above, the rapid data collection unit
After the low-speed sensor signal of acquisition first passes through AD620AN amplification, then send to ADS8344 chip and carry out at collection of simulant signal
Reason；The differential amplifier circuit that the height sensors signal of the height sensors signal element acquisition first passes through CS3004 composition is put
After big, then send to CS5532 chip and carry out collection of simulant signal processing.
A kind of multichannel blended data acquisition module as described above, the main control unit is using in ARM Cortex-M3
The microcontroller of core is main control chip, and multiplexer channel data are controlled and acquired and realize multichannel data integration processing.
Further, a kind of multichannel blended data acquisition module as described above, the main control chip model
STM32F103ZET6。
A kind of multichannel blended data acquisition module as described above, the rapid data transmission unit is using shared more
Port store, to its internal storage resource of timesharing independent access.To realize the quick real-time Transmission of multichannel blended data.
Compared with prior art, the utility model has the advantages that:
1, the utility model circuit data acquisition process structure efficiently, rationally, preferably shortens data collection cycle, mentions
The high real-time and data exchange velocity of data acquisitions.Rapid data collection and the multichannel for realizing multi-channel data are high-precision
Degree is analyzed according to acquisition, mixing acquisition multiplexer channel data, quick and precisely reflects live signal.
2, the utility model can carry out multiplexer channel while acquire, and acquisition, the processing of multichannel data quickly and precisely are led to
The real-time and accuracy that data are read in multiplexer channel timesharing, mixing acquisition mode guarantees data are crossed, to guarantee entire channel
Quick Acquisition, the high precision collecting of data.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described.
Fig. 1 is the electrical principle block diagram of the utility model；
Fig. 2 is the circuit diagram of power supply unit described in Fig. 1, in which: Fig. 2 a is to provide the power supply unit of DC5V power supply
Circuit diagram；Fig. 2 b is to provide the power unit circuit figure of DC12V power supply；
Fig. 3 is the circuit diagram of rapid data collection unit described in Fig. 1；Wherein: Fig. 3 a is the amplification of low-speed sensor signal
Circuit diagram；Fig. 3 b is the quick analog to digital conversion circuit figure of multichannel；
Fig. 4 is the figure of high-accuracy data acquisition element circuit described in Fig. 1；
Specific embodiment
To keep the purpose of this utility model, technical solution and advantage clearer, implement below in conjunction with the utility model
Attached drawing in example, is clearly and completely described the technical solution in the utility model, it is clear that described embodiment is
The utility model a part of the embodiment, instead of all the embodiments.
As Figure 1-Figure 4, a kind of multichannel blended data acquisition module disclosed in the present embodiment, including power supply unit,
Rapid data collection unit, high-accuracy data acquisition unit, main control unit and rapid data transmission unit.
Shown in a, Fig. 2 b as shown in Figure 1, Figure 2, power supply unit is rapid data collection unit, high-accuracy data acquisition unit, master
Control unit power supply.Power supply unit provides DC12V, DC5V duplex feeding.Power supply unit includes analog power and digital power, number
Power supply is that the main control unit and rapid data transmission unit are powered, and analog power is the rapid data collection unit and high-precision
Spend data acquisition unit power supply.
Power supply unit provides DC12V, DC5V two-way power supply, is then converted to module and sensor by power conversion chip
Power supply.By the way that digital power and analog power to be provided separately, digital power provides energy to digital circuit, and analog power is to number
Word power supply provides energy, and two kinds of signals are not interfere with each other, and reduces clutter, improves signal accuracy；Power input is all filtered when exporting
Wave processing, guarantees the reliability of power quality.
As shown in figure 1, figure 3 and figure 4, rapid data collection unit is for being acquired low-speed sensor signal, and will adopt
The low-speed sensor signal collected is converted to analog signal, and high-accuracy data acquisition unit is used to carry out height sensors signal
Acquisition, and collected height sensors signal is converted into analog signal；
Rapid data collection unit carries out multichannel collecting processing using 16 A/D chips；Shown high-accuracy data acquisition list
Multi channel signals are carried out high-precision data acquisition using 24 A/D chips by member.Rapid data collection unit is by low-speed sensor
Signal is handled by filtering, amplifying circuit to 16 A/D chips, to realize multi-channel data Quick Acquisition；High-accuracy data acquisition
Unit send height sensors signal to 24 A/D chips by filtering, amplifying circuit, to realize single channels data high-precision
Acquisition process.
As shown in Figure 3a, 3b, can be acquired for multi-path low speed sensor signal in rapid data collection unit and
Processing, for low-speed sensor signal after AD620AN amplifies, 16 AD rapid data signals for being sent to ADS8344 carry out six channels
Collection of simulant signal processing, realizes low-speed sensor signal acquisition.High-accuracy data acquisition unit is directed to height sensors signal
It is acquired processing, height sensors signal passes through the differential amplifier circuit of CS3004 composition, analog sensor signal is amplified
It send to 24 AD CS5532 and carries out analog-to-digital conversion, realize the data acquisition of height sensors.
As shown in Figure 1, rapid data collection unit, high-accuracy data acquisition unit respectively with main control unit, multichannel number
It is electrically connected according to interface, the rapid data transmission unit is electrically connected with main control unit；Main control unit is used to acquire fast data single
Member, high-accuracy data acquisition unit, rapid data transmission unit are realized at signal control and the data-signal received
Reason.
Main control unit uses the microcontroller of ARM Cortex-M3 kernel for main control chip, and multiplexer channel data are carried out
Multichannel data integration processing is realized in control and acquisition.
Main control part is used based on aiming at what the Embedded Application for requiring high-performance, low cost, low-power consumption specially designed
The STM32 series of ARM32 Cortex-M3 kernels.STM32F103ZET6 main control chip is chosen, clock frequency reaches
72MHz is the higher product of performance in similar product.A large amount of I/O interfaces abundant, cost performance is high, configuration is abundant flexibly, outstanding
Real-time performance, advanced, innovative peripheral hardware, maximum integration, be easy to develop, accelerate the time that appears on the market etc..
Rapid data transmission unit by after treatment low-speed sensor signal and height sensors signal be transferred to
Layer equipment.Rapid data transmission unit uses shared multiport memory, can be provided with its internal storage of timesharing independent access
Source, to realize the quick real-time Transmission of multichannel blended data.
Using double port memory RAM, efficiently realize that storing data is shared, read-write data can carry out simultaneously, improve memory
The throughput of RAM can also come real for the data of single-chip microcontroller storage large capacity using double port memory RAM as shared memory
Communication and data transmission between existing two processors, ensure that real-time data buffer storage, realize rapid data transmission.
The utility model data acquisition module block structure efficiently, rationally, preferably shortens data collection cycle, improves number
According to the real-time and data exchange velocity of acquisition.Realize the rapid data collection and multi-channel high-accuracy data of multi-channel data
Acquisition, mixing acquisition multiplexer channel data are analyzed, and quick and precisely reflect live signal.
The technology contents of the not detailed description of the utility model are well-known technique.
Claims (9)
1. a kind of multichannel blended data acquisition module, which is characterized in that including power supply unit, rapid data collection unit, height
Accuracy data acquisition unit, main control unit and rapid data transmission unit；The power supply unit is rapid data collection unit, height
Accuracy data acquisition unit, main control unit power supply；
The rapid data collection unit believes collected low-speed sensor for being acquired to low-speed sensor signal
Analog signal number is converted to, the high-accuracy data acquisition unit, and will acquisition for being acquired to height sensors signal
To height sensors signal be converted to analog signal；
The rapid data collection unit, high-accuracy data acquisition unit are electrically connected with main control unit, multi-channel data interface respectively
It connects, the rapid data transmission unit is electrically connected with main control unit；
The main control unit is used to realize fast data acquisition unit, high-accuracy data acquisition unit, rapid data transmission unit
The data-signal that signal is controlled and received is handled；
The rapid data transmission unit by after treatment low-speed sensor signal and height sensors signal be transferred to
Layer equipment.
2. a kind of multichannel blended data acquisition module according to claim 1, which is characterized in that the power supply unit mentions
For DC12V, DC5 V duplex feeding, power supply unit is all made of filtering processing when outputting and inputting, to guarantee that power supply unit is powered
Reliability.
3. a kind of multichannel blended data acquisition module according to claim 1 or 2, which is characterized in that the power supply list
Member includes analog power and digital power, and digital power is that the main control unit and rapid data transmission unit are powered, simulation electricity
Source is that the rapid data collection unit and high-accuracy data acquisition unit are powered.
4. a kind of multichannel blended data acquisition module according to claim 1, which is characterized in that the rapid data is adopted
Collect unit and carries out multichannel collecting processing using 16 A/D chips；Shown high-accuracy data acquisition unit will using 24 A/D chips
Multi channel signals carry out high-precision data acquisition.
5. a kind of multichannel blended data acquisition module according to claim 4, which is characterized in that the rapid data is adopted
Collection unit handles low-speed sensor signal by filtering, amplifying circuit to 16 A/D chips, to realize that multi-channel data is quick
Acquisition；The high-accuracy data acquisition unit send height sensors signal to 24 A/D chips by filtering, amplifying circuit, with
Realize the processing of single channels data high precision collecting.
6. a kind of multichannel blended data acquisition module according to claim 5, which is characterized in that the rapid data is adopted
After the low-speed sensor signal of collection unit acquisition first passes through AD620AN amplification, then send to ADS8344 chip progress analog signal and adopt
Collection processing；The height sensors signal of the high-accuracy data acquisition unit acquisition first passes through the differential amplification electricity of CS3004 composition
After the amplification of road, then send to CS5532 chip and carry out collection of simulant signal processing.
7. a kind of multichannel blended data acquisition module according to claim 1, which is characterized in that the main control unit is adopted
Microcontroller with ARM Cortex-M3 kernel is main control chip, is controlled and acquired realization multichannel for multiplexer channel data
Data Integration processing.
8. a kind of multichannel blended data acquisition module according to claim 7, which is characterized in that the main control chip type
Number be STM32F103ZET6.
9. a kind of multichannel blended data acquisition module according to claim 1, which is characterized in that the rapid data passes
Defeated unit uses shared multiport memory, to its internal storage resource of timesharing independent access.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112929263A (en) * | 2021-03-02 | 2021-06-08 | 华录智达科技股份有限公司 | Real-time system with quick response |
| 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 |
| CN116633963A (en) * | 2023-04-17 | 2023-08-22 | 中国船舶集团有限公司第七一一研究所 | Signal acquisition and processing device and method suitable for hybrid power system |
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2018
- 2018-05-30 CN CN201820825343.5U patent/CN208722402U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112929263A (en) * | 2021-03-02 | 2021-06-08 | 华录智达科技股份有限公司 | Real-time system with quick response |
| CN112929263B (en) * | 2021-03-02 | 2021-12-10 | 华录智达科技股份有限公司 | A responsive real-time system |
| 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 |
| CN116633963A (en) * | 2023-04-17 | 2023-08-22 | 中国船舶集团有限公司第七一一研究所 | Signal acquisition and processing device and method suitable for hybrid power system |
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