CN106994746A - A kind of concrete humidity control system and method - Google Patents
A kind of concrete humidity control system and method Download PDFInfo
- Publication number
- CN106994746A CN106994746A CN201710422520.5A CN201710422520A CN106994746A CN 106994746 A CN106994746 A CN 106994746A CN 201710422520 A CN201710422520 A CN 201710422520A CN 106994746 A CN106994746 A CN 106994746A
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- unit
- concrete
- humidity
- control system
- data acquisition
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/02—Controlling the operation of the mixing
- B28C7/022—Controlling the operation of the mixing by measuring the consistency or composition of the mixture, e.g. with supply of a missing component
- B28C7/024—Controlling the operation of the mixing by measuring the consistency or composition of the mixture, e.g. with supply of a missing component by measuring properties of the mixture, e.g. moisture, electrical resistivity, density
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D22/00—Control of humidity
- G05D22/02—Control of humidity characterised by the use of electric means
Abstract
The present invention provides a kind of concrete humidity control system and method, the device includes aggregate supply unit, powder carry unit, Humidity Detection control unit and mixing plant, the Humidity Detection control unit includes data acquisition unit, data processing unit and control unit, the data acquisition unit, data processing unit, control unit carries out UNICOM by interface module, the analog signal that described data processing unit is gathered to the data acquisition unit is digitized processing, LPF is carried out to the digitized signal by filter unit, for the concrete moisture content in real-time confirmation mixing plant.
Description
Technical field
The present invention relates to a kind of humidity control system and method, and in particular to a kind of mixing plant inner concrete humid control system
System and method.
Background technology
In building trade, the use of concrete occupies very big proportion in engineering, structure it is safe and reliable degree and it is durable
Property aspect play a decisive role, it is therefore most important for the quality control of concrete.And in concrete stirring, in concrete
Moisture content for concrete strength development, shrink, creep and be carbonized, the durability such as freeze thawing has direct influence, therefore,
Control coagulation soil's water content is a very important factor in concrete stirring.
Concrete moisture control in current industry is that humidity sensor is installed in mixing plant by the control system that adds water
Device, is measured to the concrete humidity in mixing plant and transmits a signal to control system, examined by industrial control software online
Measuring moisture changes, by data analysis, confirms amount of water, then outputs signal to the control system that adds water and realize concrete humidity control
System.
But the existing Control system architecture complexity that adds water, it is inaccurate for concrete moisture control, for humidity control
The software upgrade cycle of system is long, complex operation, and fault detect maintenance and maintenance are higher for the technical requirements of operating personnel.
It is a kind of simple in construction based on factors above, independent detection control, energy can be carried out for precast concrete moisture content
Enough convenient mixing plant humidity control systems for carrying out fault detect repair and upgrade maintenance turn into industry urgent problem to be solved.
The content of the invention
It is an object of the invention to provide a kind of concrete humidity control system, including aggregate supply unit, powder carry list
Member, Humidity Detection control unit and mixing plant, the Humidity Detection control unit include data acquisition unit, data processing unit
And control unit, the data acquisition unit, data processing unit, control unit carry out UNICOM by interface module, described
The analog signal that data processing unit is gathered to the data acquisition unit is digitized processing, by filter unit to the number
Word signal carries out LPF, for the concrete moisture content in real-time confirmation mixing plant.
As one embodiment of the present invention, described data acquisition unit includes collection moisture probe, flow and counts single
Member, described collection moisture probe is used for the water content for gathering mixing plant inner concrete, and described flow counting unit is used to adopt
Collection adds the pulse signal of water.
As one embodiment of the present invention, described data acquisition unit also includes software modification unit, and described is soft
Part modification unit is connected by communication interface with the processing unit, for modifying or debugging to software.
As one embodiment of the present invention, described data acquisition unit also includes field signal acquisition unit, is used for
The input material information of described aggregate supply unit, the powder carry unit is acquired.
As one embodiment of the present invention, described field signal acquisition unit gathers the aggregate supply unit, institute
Whether the material for stating powder carry unit is delivered and is finished, and the information whether described control unit shuts down.
As one embodiment of the present invention, the mixing plant that described processing unit is gathered by the data acquisition unit
The water content of inner concrete and the concrete humidity value of demarcation, it is determined that addition water, described control unit is determined by
Water is added, inflow is controlled, the concrete in mixing plant is reached predetermined moisture content.
As one embodiment of the present invention, described control unit has display unit, shows that current concrete is wet
Spend, the calibration value of water and water content need to be added.
As one embodiment of the present invention, described control unit has input unit, for inputting mixing plant humidity
Each parameter of control system.
The present invention also provides a kind of concrete humidity control method, with following steps：On-site signal detecting step, data
The output of collecting unit detection aggregate supply unit and powder carry unit, which feeds intake, finishes signal；Humidity Detection step, waits dry
After stirring terminates, data acquisition unit detects the humidity of current mixing plant inner concrete；Data processing step, data processing unit
The moisture signal progress low-pass filtering treatment detected to data acquisition unit, the original humidity value stablized, and according to default
Water content calibration value, it is determined that need add water；Rate-determining steps, the need for control unit is determined according to data processing unit
The water of addition, controls inflow, until reaching default water content calibration value.
As one embodiment of the present invention, described data acquisition unit detects the humidity of current mixing plant inner concrete
The step of detected in real time during rate-determining steps control adds water, the data processing unit according to it is described monitor in real time it is mixed
Solidifying soil humidity adjusts the inflow of control unit, makes actual humidity consistent with setting humidity.
The concrete humidity control system of the present invention realizes that the detection control of the precast concrete moisture content in mixing plant is only
Verticalization, using LPF mode according to the change of material in mixing plant mixing cycle and stirring to the original humidity value of collection
Low-pass filtering treatment is carried out, makes the material water ratio of detection closer to the true humidity of material, to the moisture control of concrete
It is more accurate, while the present invention sets software modification unit, connected by communication interface with data processing unit, convenient maintenance people
The fault detect repair and upgrade of member is safeguarded.
Brief description of the drawings
Fig. 1 is the concrete humidity control system architecture schematic diagram of invention；
Fig. 2 is the theory diagram of concrete humidity control system of the present invention；
Fig. 3 is the process chart that concrete humidity of the present invention detects controller：
Wherein, description of reference numerals is as follows：
1 aggregate supply unit
2 powder carry units
3 Humidity Detection control units
4 mixing plants
5 data acquisition units
5a gathers moisture probe
5b flow counting units
5c software modification units
5d field signal acquisition units
6 data processing units
7 control units
7a adds water control unit
7b display units
Embodiment
The present invention provides a kind of concrete humidity control system, with aggregate supply unit 1, powder carry unit 2, humidity
Detection control unit 3, mixing plant 4.The installation requirement of Humidity Detection control unit is safe and reliable, is such as installed on moistureproof and anti-electric shock
Distribution box shell on, prevent metal fillings and lead from falling into controller air vent, in order to avoid cause product bug and maloperation.
The Humidity Detection control unit 3 of the present invention includes data acquisition unit 5, data processing unit 6 and control unit 7,
Wherein data acquisition unit 5, data processing unit 6, control unit 7 carry out UNICOM by interface module.
As one embodiment of the invention, wherein data acquisition unit 5 includes collection moisture probe 5a, flow counting unit
5b, software modification unit 5c and field signal acquisition unit 5d, wherein collection moisture probe 5a collection mixing plant inner concretes
Humidity information, data processing unit 6 will gather moisture probe 5a analog signal digital, by low-pass filter unit to the number
Word signal carries out LPF, realizes the stabilisation of raw value, so as to accurately control the water content of concrete；Flow is counted
The pulse signal of unit 5b collection water meterings, and the signal is fed back into data processing unit, so that in real-time confirmation mixing plant
Concrete amount of water；Software modification unit 5c is connected by communication interface with processing unit 6, preferably 485/232 communication
Interface, maintenance personal can be modified and be debugged to software by the interface and downloaded；Field signal acquisition unit 5d passes through
The input material information of aggregate supply unit 1, powder carry unit 2 is acquired, determine the material total amount in mixing plant 4 with
And proportion relation, and according to the predefined parameter set in control unit 7, related data is transmitted to data processing unit 6；Data
Processing unit 6 passes through gathered digitized signal and calculates coagulation soil's water content, and true according to the concrete humidity value of demarcation
Fixed required addition water；Control unit 7 controls inflow, reaches coagulation degree according to the result of data processing unit 6
Predetermined moisture, while control unit has display unit, shows current current humidity, need to add the mark of water and water content
Definite value.
The concrete operating principle of the concrete structure of data acquisition unit 5 in a upper embodiment only to illustrate the invention, and
Unrestricted protection scope of the present invention, cited collection moisture probe 5a, flow counting unit 5b, software modification unit 5c and
Field signal acquisition unit 5d, only illustrates the concrete function of data acquisition unit 5, but its function be not limited to it is cited upper
Function is stated, it can also according to circumstances be changed accordingly.The field signal acquisition unit 5d of the present invention also has the live thing of detection
Material feeds intake function that the function of finishing and control unit shut down etc..
What the counting unit in the present invention was gathered is the pulse signal of water metering, and data processing unit is according to the pulse signal
Actual amount of water is obtained by linear transformation.It is preferred that, counting unit uses high-speed counting unit.
The communication interface of the moderate control device of the present invention is multiple, in a preferred embodiment, can reserve 5 and enter 5
I/O structures, it is convenient to be docked with the control system progress function of mixing plant.
The data acquisition unit of the present invention, processing unit, control unit are integrated to be formed, so as to reduce operating personnel
Ease of handling and maintenance personal maintenance difficulty.
As one embodiment of the invention, control unit 7 has the control unit 7a and display unit 7b that adds water, and add water control
Unit 7a controls amount of water, and display unit 7b shows current current humidity, need to add the calibration value of water and water content.More
It is preferred that, control unit 7 also has input unit, by input unit, can input adjustment mixing plant humidity control system
The calibration value of each parameter, such as water content.
During specifically used, gathered first according to the Humidity Detection control unit 3 of concrete humidity control system first
The original analog amount and water metrical pulse count value of concrete humidity, which carry out demarcation, turns into material actual humidity value and water weight；Place
Manage unit and receive outer input interface dispensing completion signal, control unit completes dry stirring, bone is gathered by data acquisition unit 5
Expect supply unit 1, the material conveying capacity of powder carry unit 2, and the mixed current water content of material.Data processing unit
6 carry out LPF according to the data of data acquisition unit 5, obtain the original humidity value that concrete drier is really stablized, and
According to the default water content calibration value of control unit 7, it is determined that needing the water added.Control unit 7 is according to data processing unit 6
Result, control inflow, reach default water content calibration value.
During the inflow according to determined by data processing unit 6 of control unit 7 is added water, data acquisition list
Member gathers the water content of current concrete, and value of feedback data processing unit in time in real time, and data processing unit is according to the detection
Concrete aqueous numerical quantity, in real time adjustment control unit inflow, it is to avoid the error being likely to occur, it is current mixed to ensure
The water content for coagulating soil is consistent with the concrete moisture content demarcated.
Need more new procedures or modification program or debugging when downloading, connect by software modification unit 5c communication interface
Enter, so that the software to Humidity Detection control unit is modified, updates or debugged.
The present invention is detected using the independent to the precast concrete moisture content in concrete mixing plant, by original wet
Spend signal and carry out low-pass filtering treatment, make the material water ratio of detection closer to the true humidity of material, to the aqueous of concrete
Rate control is more accurate, substantially increases the durability of concrete, while the present invention sets software modification unit, is connect by communication
Mouth connects with data processing unit, facilitates the fault detect repair and upgrade of maintenance personal to safeguard.
Claims (10)
1. a kind of concrete humidity control system, including aggregate supply unit, powder carry unit, Humidity Detection control unit and
Mixing plant, the Humidity Detection control unit includes data acquisition unit, data processing unit and control unit, and the data are adopted
Collect unit, data processing unit, control unit and UNICOM is carried out by interface module, described data processing unit is to the data
The analog signal of collecting unit collection is digitized processing, and LPF is carried out to the digitized signal by filter unit,
For the concrete moisture content in real-time confirmation mixing plant.
2. concrete humidity control system as claimed in claim 1, it is characterised in that described data acquisition unit includes adopting
Collect moisture probe, flow counting unit, described collection moisture probe is used for the water content for gathering mixing plant inner concrete, described
Flow counting unit be used for gather add water pulse signal.
3. concrete humidity control system as claimed in claim 1 or 2, it is characterised in that described data acquisition unit is also
Including software modification unit, described software modification unit is connected by communication interface with the processing unit, for software
Modify or debug.
4. concrete humidity control system as claimed in claim 1 or 2, it is characterised in that described data acquisition unit is also
Including field signal acquisition unit, for the input material information to described aggregate supply unit, the powder carry unit
It is acquired.
5. concrete humidity control system as claimed in claim 4, it is characterised in that described field signal acquisition unit,
Gather whether the aggregate supply unit, the material of the powder carry unit are delivered and finished, and described control unit whether
The information shut down.
6. concrete humidity control system as claimed in claim 1, it is characterised in that described processing unit passes through the number
The water content of the mixing plant inner concrete gathered according to collecting unit and the concrete humidity value of demarcation, it is determined that addition water, institute
Control unit addition water determined by is stated, inflow is controlled, the concrete in mixing plant is reached predetermined moisture content.
7. concrete humidity control system as claimed in claim 1, it is characterised in that described control unit has display single
Member, shows current concrete humidity, need to add the calibration value of water and water content.
8. concrete humidity control system as claimed in claim 1, it is characterised in that there is described control unit input to fill
Put, each parameter for inputting concrete humidity control system.
9. a kind of concrete humidity control method, with following steps：
On-site signal detecting step, the output of data acquisition unit detection aggregate supply unit and powder carry unit, which feeds intake, to be finished
Signal；
Humidity Detection step, after the dry stirring of wait terminates, data acquisition unit detects the humidity of current mixing plant inner concrete；
Data processing step, the moisture signal that data processing unit is detected to data acquisition unit carries out low-pass filtering treatment, obtains
To stable original humidity value, and according to default water content calibration value, it is determined that needing the water added；
Rate-determining steps, the water that control unit is added the need for being determined according to data processing unit controls inflow, until reaching
Default water content calibration value.
10. a kind of concrete humidity control method as claimed in claim 9, it is characterised in that described data acquisition unit
The step of detecting the humidity of current mixing plant inner concrete rate-determining steps control add water during detect in real time, the data
Processing unit adjusts the inflow of control unit according to the concrete humidity monitored in real time, makes actual humidity and setting humidity
Unanimously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710422520.5A CN106994746A (en) | 2017-06-07 | 2017-06-07 | A kind of concrete humidity control system and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710422520.5A CN106994746A (en) | 2017-06-07 | 2017-06-07 | A kind of concrete humidity control system and method |
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| CN106994746A true CN106994746A (en) | 2017-08-01 |
Family
ID=59436132
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| CN201710422520.5A Pending CN106994746A (en) | 2017-06-07 | 2017-06-07 | A kind of concrete humidity control system and method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107901223A (en) * | 2017-11-23 | 2018-04-13 | 广东惠利普路桥信息工程有限公司 | A kind of intelligent concrete mixer |
| CN108872549A (en) * | 2018-06-28 | 2018-11-23 | 山推建友机械股份有限公司 | A kind of slump Online Monitoring Control System and method |
| WO2019074624A1 (en) * | 2017-10-11 | 2019-04-18 | Caterpillar Inc. | Monitoring system for three-dimensional printing |
| CN109676795A (en) * | 2018-12-13 | 2019-04-26 | 中山艾尚智同信息科技有限公司 | A kind of concrete intelligence kneading control method and its system |
| CN109732782A (en) * | 2019-03-06 | 2019-05-10 | 武汉理工大学 | A kind of concrete moisture content online monitoring system and monitoring method |
| CN113942121A (en) * | 2021-09-03 | 2022-01-18 | 湖南中联重科混凝土机械站类设备有限公司 | Control method, processor and device for aggregate moisture content of mixing station |
| CN114193624A (en) * | 2021-11-24 | 2022-03-18 | 中交四航工程研究院有限公司 | Concrete mixing proportion accurate regulation and control system and method based on aggregate moisture content dynamic monitoring |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2019074624A1 (en) * | 2017-10-11 | 2019-04-18 | Caterpillar Inc. | Monitoring system for three-dimensional printing |
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| CN107901223A (en) * | 2017-11-23 | 2018-04-13 | 广东惠利普路桥信息工程有限公司 | A kind of intelligent concrete mixer |
| CN108872549A (en) * | 2018-06-28 | 2018-11-23 | 山推建友机械股份有限公司 | A kind of slump Online Monitoring Control System and method |
| CN109676795A (en) * | 2018-12-13 | 2019-04-26 | 中山艾尚智同信息科技有限公司 | A kind of concrete intelligence kneading control method and its system |
| CN109676795B (en) * | 2018-12-13 | 2020-09-04 | 中山艾尚智同信息科技有限公司 | Concrete intelligent stirring control method and system |
| CN109732782A (en) * | 2019-03-06 | 2019-05-10 | 武汉理工大学 | A kind of concrete moisture content online monitoring system and monitoring method |
| CN113942121A (en) * | 2021-09-03 | 2022-01-18 | 湖南中联重科混凝土机械站类设备有限公司 | Control method, processor and device for aggregate moisture content of mixing station |
| CN114193624A (en) * | 2021-11-24 | 2022-03-18 | 中交四航工程研究院有限公司 | Concrete mixing proportion accurate regulation and control system and method based on aggregate moisture content dynamic monitoring |
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