CN103307976A - Monitoring method for grain stock in barn - Google Patents
Monitoring method for grain stock in barn Download PDFInfo
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- CN103307976A CN103307976A CN2013101328678A CN201310132867A CN103307976A CN 103307976 A CN103307976 A CN 103307976A CN 2013101328678 A CN2013101328678 A CN 2013101328678A CN 201310132867 A CN201310132867 A CN 201310132867A CN 103307976 A CN103307976 A CN 103307976A
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Abstract
The invention discloses a monitoring method for grain stock in a barn. The monitoring method can be used for scanning the upper surface of grains in the barn when the barn is empty and after the grains are put in and got out of the barn; a three-dimensional coordinate point set of the surface of the grains stored in the barn at the moments when the barn is empty and after the grains are put in and got out of the barn is obtained respectively; a barn model corresponding to each moment is constructed by software in a computer according to the three-dimensional coordinate point set at each moment respectively; and the size of the barn model is calculated, the grain stock size after ith grain inlet or outlet is calculated, the grain stock after ith grain inlet or outlet is calculated according to the density of the grains and the grain storage size, and Mi is stored in the computer. The monitoring method has the characteristics of capabilities of monitoring the grain stock and the grain variation during each gain inlet and outlet in real time, timely discovering the abnormal condition of the grains in the barn and reducing the loss to the minimum, high measuring precision, simple, convenient and quick monitoring process and capability of reducing the manual cost.
Description
Technical field
The present invention relates to silo administrative skill field, especially relate to a kind of variation that can detect in real time grain storage amount and each grain, the monitoring method of grain memory space in the high silo of measuring accuracy.
Background technology
At present, in the daily management of silo, the memory space of grain is mainly obtained by two kinds of methods in the silo:
A kind of method is the tape measure method: obtain the volume of grain in the silo by tape measure, then calculate the grain storage amount according to the density of grain and the bulking value that records.The method exists metering process complicated, loaded down with trivial details, the deficiency that metering accuracy is poor.
Another kind method is the Weighing method: measure and record the amount of grain change in each silo, by inquiry grain change record, calculate grain memory space in the silo; When the method exists record imperfect, then can't obtain the accurately deficiency of grain storage amount.
Chinese patent mandate publication number: CN101185462A, authorize open day on May 28th, 2008, a kind of cereal vacuum storage device is disclosed, contain hollow grain storage warehouse, be respectively arranged with charging Hatch Opening and discharging Hatch Opening on the described hollow grain storage warehouse, and be respectively arranged with gland bonnet on described charging Hatch Opening and the discharging Hatch Opening, it is characterized in that: be set with flexible bag in the inner chamber of described hollow grain storage warehouse, the inner chamber of the size and shape of described flexible bag and described hollow grain storage warehouse is complementary, be respectively arranged with charging sack and discharging sack on the described flexible bag, described charging sack is corresponding with the discharging Hatch Opening with the charging Hatch Opening of discharging sack and described hollow silo, and be respectively arranged with sealing mechanism on described charging sack and the discharging sack, the top of described flexible pouch external surface be connected the top of hollow grain storehouse intracoelomic cavity and connect by flexible cable, and be provided with flexible vacuum-pumping tube on the described flexible bag, this flexibility vacuum-pumping tube inner end and described flexible bag are communicated with, and its outer end and vaccum-pumping equipment are communicated with.There is function singleness in this invention, can not detect the deficiency of grain storage amount.
Summary of the invention
The present invention is for the metering process complexity that overcomes grain storage amount metering method of the prior art, loaded down with trivial details, the deficiency that metering accuracy is poor, provide a kind of variation that can detect in real time grain storage amount and each grain, the monitoring method of grain memory space in the high silo of measuring accuracy.
To achieve these goals, the present invention is by the following technical solutions:
The monitoring method of grain memory space in a kind of silo, described monitoring method are applicable to a kind of grain storage amount monitoring device, and described monitoring device is located at the silo top, and described monitoring device is connected with computing machine; Described monitoring device comprises a motor, alarm and the two-dimentional turntable that is connected with motor of being located at the silo top; The rotating shaft of described motor is connected with two-dimentional turntable; Described two-dimentional turntable bottom is provided with distance measuring sensor; Described computing machine is electrically connected with alarm, motor and distance measuring sensor respectively; Described two-dimentional turntable comprises left/right rotation moving axis and front and back rotation axis; It is characterized in that, comprise the steps:
During (1-1) to hole capital after selling all securities, advance after the grain at every turn and put out cereal at every turn after silo in the grain upper surface scan:
Step 1, computing machine preset the angular range that two-dimentional turntable rotates according to length and the width of silo, make the scope of the interior grain upper surface of investigative range 〉=silo of distance measuring sensor; Set the line number p of distance measuring sensor scanning and the number of scan points k of every row according to the angular range that two-dimentional turntable rotates, set the each angle value m that rotates of left/right rotation moving axis, the each rotational angle value of rotation axis n before and after setting, the initial value of setting line number i is 1, the initial value of setting columns j is 1;
Step 2, computing machine turns to the position of the analyzing spot of the capable j row of i by Electric Machine Control two dimension turntable, computer control distance measuring sensor grain upper surface emission detection signal in the silo, distance measuring sensor calculates distance measuring sensor apart from the distance of grain upper surface in the silo according to the reflected signal that receives, computing machine calculates according to the angle of signal emission and the distance that records, obtain the three-dimensional coordinate of the analyzing spot of the capable j row of i, and D coordinates value is stored in the computing machine;
Step 3, computing machine is by Electric Machine Control two dimension turntable rotational angle m, computer control distance measuring sensor grain upper surface emission detection signal in the silo, distance measuring sensor calculates distance measuring sensor apart from the distance of grain upper surface in the silo according to the reflected signal that receives, computing machine calculates according to the angle of signal emission and the distance that records, obtain the three-dimensional coordinate of the analyzing spot of the capable j+1 row of i, and coordinate figure is stored in the computing machine;
Step 4 as j＜k-1, makes the j value increase by 1, the process of repeating step 3;
Step 5 as i＜p, makes the i value increase by 1, and repeating step 2 is to the process of step 4; Obtain hole capital after selling all securities advances after the grain constantly and the three-dimensional coordinate point set S of the granary storage face in the rear moment of at every turn putting out cereal constantly, at every turn
k, 0=1 ..., n; S wherein
0The three-dimensional coordinate point set of the granary storage face during for hole capital after selling all securities;
(1-2) software in the computing machine makes up respectively and each constantly corresponding silo model according to each three-dimensional coordinate point set constantly; The silo model is surrounded by grain upper surface and the silo outer peripheral face that silo bottom surface, three-dimensional coordinate point set consist of; The silo model is divided into several cubes, calculates each cubical volume, with each cubical volume addition, obtain the volume V of silo model
k, k=0 ..., n, wherein V
0The volume of the silo model during for hole capital after selling all securities;
(1-3) utilize formula | V
k-V
0| calculate advance grain for the k time or put out cereal after the grain reservoir volume; According to the densitometer of grain calculate advance grain for the k time or put out cereal after grain store mass M
k, with M
kStore in the computing machine.
When the present invention can be to hole capital after selling all securities, advance after the grain at every turn and in the silo after at every turn putting out cereal the grain upper surface scan; Obtain respectively hole capital after selling all securities advances after the grain constantly and the three-dimensional coordinate point set of the granary storage face in the rear moment of at every turn putting out cereal constantly, at every turn; Software in the computing machine makes up respectively and each constantly corresponding silo model according to each three-dimensional coordinate point set constantly; Calculate the volume V of silo model
i, utilize formula | V
k-V
0| calculate advance grain for the i time or put out cereal after the grain reservoir volume, according to the density of grain and grain store volumescope calculate advance grain for the i time or put out cereal after the grain storage amount, with M
iStore in the computing machine.
And, can also measure the quality of advancing grain at every turn or putting out cereal; Calculate the poor of the grain storage amount of grain before and after the moment, namely obtain the grain quality that grain is advanced in this time; Grain storage amount before and after calculating is put out cereal constantly poor namely obtains the grain quality that this time put out cereal.Thereby realize the Real Time Monitoring of silo, the present invention has overcome the complex operation of artificial Weighing or rod reading measurement, and error is large, the shortcomings such as labor intensive.
And no matter the upper surface of grain whether detect by smooth all can the realization, having overcome existing scale testing requirement grain face must be the shortcoming of level.
As preferably, also comprise the steps: every certain time interval, grain upper surface in the silo is once monitored scanning, repeat described (1-1) and calculate grain quality variable quantity between the adjacent monitoring scanning constantly to the step of (1-3), if do not have the moving operation of artificial variable grain and grain quality rate of change to surpass 0.5% between the adjacent monitoring scanning constantly, then alarm equipment alarm.
For example, every 8 hours, detect the storage quality of the interior grain of silo, when not having the moving operation of artificial variable grain and grain quality rate of change to surpass 0.5% between the adjacent monitoring scanning constantly, illustrate to have occurred in the silo that grain rots, mouse suffers from or the abnormal conditions such as infested, alarm is reminded managerial personnel's manual intervention.
As preferably, the angle value m in the described step (1-1) is that 0.05 degree is to 0.2 degree.
As preferably, the angle value n in the described step (1-1) is that 0.05 degree is to 0.2 degree.
As preferably, the rotational angle of described left/right rotation moving axis is-58 ° to 58 °.
As preferably, the rotational angle of front and back rotation axis is from-58 ° to 58 °.
Therefore, the present invention has following beneficial effect: (1) can Real-Time Monitoring grain storage amount and advance grain at every turn, variable grain momentum when putting out cereal; (2) measuring accuracy is high; (3) can in time find the abnormal conditions of grain in the silo, loss is reduced to minimum; (4) observation process is easy, quick, has reduced human cost.
Description of drawings
Fig. 1 is a kind of test process schematic diagram of the present invention;
Fig. 2 is a kind of process flow diagram of embodiments of the invention 1;
Fig. 3 is a kind of theory diagram of monitoring device of the present invention;
Fig. 4 is a kind of structural representation of computing module of the present invention;
Fig. 5 is the another kind of structural representation of computing module of the present invention.
Among the figure: computing machine 1, motor 2, two-dimentional turntable 3, distance measuring sensor 4, left/right rotation moving axis 5, front and back rotation axis 6, alarm 7, monitoring device 8, silo model 9.
Embodiment
The present invention will be further described below in conjunction with the drawings and specific embodiments.
Embodiment 1
Embodiment as shown in Figure 1 is the monitoring method of grain memory space in a kind of silo, and described monitoring method is applicable to a kind of grain storage amount monitoring device, and described monitoring device 8 is located at the silo top, and monitoring device is connected with computing machine 1; Monitoring device comprises a motor 2, alarm 7 and the two-dimentional turntable 3 that is connected with motor of being located at the silo top; The rotating shaft of motor is connected with two-dimentional turntable; Two dimension turntable bottom is provided with distance measuring sensor 4; Computing machine is electrically connected with alarm, motor and distance measuring sensor respectively; The two dimension turntable comprises left/right rotation moving axis 5 and front and back rotation axis 6; The rotational angle of left/right rotation moving axis is-58 ° to 58 °.Two dimension turntable bottom is provided with for the dust cap that covers distance measuring sensor.
The rotational angle of left/right rotation moving axis is-58 ° to 58 °.The rotational angle of front and back rotation axis is-45 ° to 45 °.The length of silo is 8 meters, and width is 5 meters.
The monitoring method of grain memory space comprises the steps: in the silo of the present invention
As shown in Figure 2, step 100, during to hole capital after selling all securities, advance after the grain at every turn and put out cereal at every turn after silo in the grain upper surface scan:
Step 101, the width of silo are 5 meters, and length is 8 meters; The rotational angle of front and back rotation axis is from-58 ° to 58 °.Distance measuring sensor is laser range sensor; The scope of grain upper surface in the investigative range＞silo of distance measuring sensor; The line number p that sets distance measuring sensor scanning be 900 and the number of scan points k of every row be 1160, setting the each angle value m that rotates of left/right rotation moving axis is 0.1 degree, the each rotational angle value of rotation axis n is 0.1 degree before and after setting, and the initial value of setting line number i is 1, and the initial value of setting columns j is 1; The z-plane of three-dimensional system of coordinate overlaps with the silo bottom surface;
Step 102, computing machine turns to the position of the analyzing spot of the capable j row of i by Electric Machine Control two dimension turntable, computer control distance measuring sensor grain upper surface emission detection signal in the silo, distance measuring sensor calculates distance measuring sensor apart from the distance of grain upper surface in the silo according to the reflected signal that receives, computing machine calculates according to the angle of signal emission and the distance that records, obtain the three-dimensional coordinate of the analyzing spot of the capable j row of i, and D coordinates value is stored in the computing machine;
Step 103, computing machine is by Electric Machine Control two dimension turntable rotational angle m, computer control distance measuring sensor grain upper surface emission detection signal in the silo, distance measuring sensor calculates distance measuring sensor apart from the distance of grain upper surface in the silo according to the reflected signal that receives, computing machine calculates according to the angle of signal emission and the distance that records, obtain the three-dimensional coordinate of the analyzing spot of the capable j+1 row of i, and coordinate figure is stored in the computing machine;
Step 104 when j＜1159, makes the j value increase by 1, the process of repeating step 3;
Step 105 when i＜900, makes the i value increase by 1, and repeating step 102 is to the process of step 104; Obtain hole capital after selling all securities advances after the grain constantly and the three-dimensional coordinate point set S of the granary storage face in the rear moment of at every turn putting out cereal constantly, at every turn
k, k=1 ..., n; S wherein
0The three-dimensional coordinate point set of the granary storage face during for hole capital after selling all securities;
Under the calculation method of physical volume of silo model: as shown in Figure 1, the silo model is divided into (i-1) * (j-1) individual Cube computation module as shown in Figure 5 by three-dimensional coordinate point, the silo model is divided into 899 * 1159 Cube computation modules in the present embodiment, the upper surface of each computing module is surrounded by 4 points, and the face that 4 points are surrounded is approximated to the plane.
As shown in Figure 4, A(x among the figure
1, y
2, z
1), B(x
2, y
2, z
2), C(x
1, y
1, z
3), D(x
2, y
1, z
4) four consecutive point consist of the upper surface of computing module, use formula | x
1-x
2| * | y
1-y
2| calculate the area of the upper surface of Cube computation module;
Utilize formula to calculate the height z of computing module, utilize formula to calculate Cube computation module volume; With the addition of 899 * 1159 Cube computation module volumes, obtain the volume of silo model;
Embodiment 2
Comprise structures all among the embodiment 1 and step part among the embodiment 2, also comprise the steps:
Every 8 hours, grain upper surface in the silo is once monitored scanning, repeating said steps 100 to step 300 is calculated the grain quality variable quantity between the adjacent monitoring scanning constantly, if do not have the moving operation of artificial variable grain and grain quality rate of change to surpass 0.5% between the adjacent monitoring scanning constantly, then alarm equipment alarm.
For example: once monitor scanning 2 o'clock on the 3rd January, and obtaining the grain storage quality is 120000 kilograms; Once monitor scanning 10 o'clock on the 3rd January, and obtaining the grain storage quality is 119200 kilograms; Calculating the grain variable quantity is 800 kilograms, and the variable grain rate is 0.67%; And between 10 o'clock on the 3rd January, manually do not advance grain and the operation of putting out cereal on January 32, then controller control alarm equipment alarm.Illustrate to have occurred in the silo that grain rots, mouse suffers from or the abnormal conditions such as infested, alarm is reminded managerial personnel's manual intervention.
Should be understood that the present embodiment only to be used for explanation the present invention and be not used in and limit the scope of the invention.Should be understood that in addition those skilled in the art can make various changes or modifications the present invention after the content of having read the present invention's instruction, these equivalent form of values fall within the application's appended claims limited range equally.
Claims (6)
1. the monitoring method of grain memory space in the silo, described monitoring method is applicable to a kind of grain storage amount monitoring device, and described monitoring device is located at the silo top, and described monitoring device is connected with computing machine (1); Described monitoring device comprises a motor (2), the alarm (7) of being located at the silo top and the two-dimentional turntable (3) that is connected with motor; The rotating shaft of described motor is connected with two-dimentional turntable; Described two-dimentional turntable bottom is provided with distance measuring sensor (4); Described computing machine is electrically connected with alarm, motor and distance measuring sensor respectively; Described two-dimentional turntable comprises left/right rotation moving axis (5) and front and back rotation axis (6); It is characterized in that, comprise the steps:
During (1-1) to hole capital after selling all securities, advance after the grain at every turn and put out cereal at every turn after silo in the grain upper surface scan:
Step 1, computing machine preset the angular range that two-dimentional turntable rotates according to length and the width of silo, make the scope of the interior grain upper surface of investigative range 〉=silo of distance measuring sensor; Set the line number p of distance measuring sensor scanning and the number of scan points k of every row according to the angular range that two-dimentional turntable rotates, set the each angle value m that rotates of left/right rotation moving axis, the each rotational angle value of rotation axis n before and after setting, the initial value of setting line number i is 1, the initial value of setting columns j is 1;
Step 2, computing machine turns to the position of the analyzing spot of the capable j row of i by Electric Machine Control two dimension turntable, computer control distance measuring sensor grain upper surface emission detection signal in the silo, distance measuring sensor calculates distance measuring sensor apart from the distance of grain upper surface in the silo according to the reflected signal that receives, computing machine calculates according to the angle of signal emission and the distance that records, obtain the three-dimensional coordinate of the analyzing spot of the capable j row of i, and D coordinates value is stored in the computing machine;
Step 3, computing machine is by Electric Machine Control two dimension turntable rotational angle m, computer control distance measuring sensor grain upper surface emission detection signal in the silo, distance measuring sensor calculates distance measuring sensor apart from the distance of grain upper surface in the silo according to the reflected signal that receives, computing machine calculates according to the angle of signal emission and the distance that records, obtain the three-dimensional coordinate of the analyzing spot of the capable j+1 row of i, and coordinate figure is stored in the computing machine;
Step 4 as j＜k-1, makes the j value increase by 1, the process of repeating step 3;
Step 5 as i＜p, makes the i value increase by 1, and repeating step 2 is to the process of step 4; Obtain hole capital after selling all securities advances after the grain constantly and the three-dimensional coordinate point set S of the granary storage face in the rear moment of at every turn putting out cereal constantly, at every turn
k, 0=1 ..., n; S wherein
0The three-dimensional coordinate point set of the granary storage face during for hole capital after selling all securities;
(1-2) software in the computing machine makes up respectively and each constantly corresponding silo model according to each three-dimensional coordinate point set constantly; The silo model is surrounded by grain upper surface and the silo outer peripheral face that silo bottom surface, three-dimensional coordinate point set consist of; The silo model is divided into several cubes, calculates each cubical volume, with each cubical volume addition, obtain the volume V of silo model
k, k=0 ..., n, wherein V
0The volume of the silo model during for hole capital after selling all securities;
(1-3) utilize formula | V
k-V
0| calculate advance grain for the k time or put out cereal after the grain reservoir volume; According to the densitometer of grain calculate advance grain for the k time or put out cereal after grain store mass M
k, with M
kStore in the computing machine.
2. the monitoring method of grain memory space in the silo according to claim 1, it is characterized in that, also comprise the steps: every certain time interval, grain upper surface in the silo is once monitored scanning, repeat described (1-1) and calculate grain quality variable quantity between the adjacent monitoring scanning constantly to the step of (1-3), if do not have the moving operation of artificial variable grain and grain quality rate of change to surpass 0.5% between the adjacent monitoring scanning constantly, then alarm equipment alarm.
3. the monitoring method of grain memory space in the silo according to claim 1 is characterized in that, the angle value m in the described step (1-1) is that 0.05 degree is to 0.2 degree.
4. the monitoring method of grain memory space in the silo according to claim 1 is characterized in that, the angle value n in the described step (1-1) is that 0.05 degree is to 0.2 degree.
5. the monitoring method of grain memory space in the silo according to claim 1 is characterized in that, the rotational angle of described left/right rotation moving axis is-58 ° to 58 °.
6. the monitoring method of grain memory space according to claim 1 and 2 or in 3 or the 4 or 5 described silos is characterized in that, the rotational angle of front and back rotation axis is from-58 ° to 58 °.
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| CN104457575A (en) * | 2014-12-18 | 2015-03-25 | 郑州长河电子工程有限公司 | Monitoring system and method for barn storage amount |
| CN105279296A (en) * | 2014-07-22 | 2016-01-27 | A.P.M.自动化解决方案公司 | Method and system for measuring contents of cabin |
| CN106153165A (en) * | 2015-04-24 | 2016-11-23 | 周清云 | The Weighing method of silo material, system and device |
| CN106931880A (en) * | 2017-02-21 | 2017-07-07 | 济南浪潮高新科技投资发展有限公司 | The measuring method and device of a kind of grain volume |
| CN107036687A (en) * | 2017-03-08 | 2017-08-11 | 湖北叶威(集团)智能科技有限公司 | The grain storage Monitoring of Quantity method and device of view-based access control model |
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| CN105279296B (en) * | 2014-07-22 | 2019-02-05 | A.P.M.自动化解决方案公司 | For measuring the method and system of the content in storehouse |
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| CN106153165A (en) * | 2015-04-24 | 2016-11-23 | 周清云 | The Weighing method of silo material, system and device |
| CN106931880B (en) * | 2017-02-21 | 2019-08-16 | 浪潮通用软件有限公司 | A kind of measurement method and device of grain volume |
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