CN113592266A - Stock ground electronic management system capable of monitoring excess material amount in real time and use method thereof - Google Patents
Stock ground electronic management system capable of monitoring excess material amount in real time and use method thereof Download PDFInfo
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Abstract
The invention relates to the technical field of bulk material storage or loose materials, and discloses a stock ground electronic management system capable of monitoring the amount of excess materials in real time and a using method thereof, wherein the stock ground electronic management system comprises pressure sensors embedded in bottom plates of stock bins of a stock ground, field interaction terminals arranged on the edges of the corresponding stock bins in a one-to-one correspondence manner with the stock bins, and a central control computer electrically connected with the field interaction terminals respectively; the field interaction terminal is provided with an input device and a display screen, and the input device and the display screen are respectively and electrically connected with the central control computer; the bottom plate of the storage bin is a hardened bottom plate, the bottom plate of the storage bin is uniformly divided into a plurality of grids with the same area, and the geometric center of each grid is provided with a pressure sensor. According to the invention, the bin bottom plate is divided into grids with equal sizes, then the pressure intensity of the material pile in the bin to each grid is detected in real time by using the pressure sensor, and the excess material amount is obtained according to the pressure intensity, so that the excess material amount of the material pile is monitored in real time; and accordingly, various problems of the existing stock ground are solved.
Description
Technical Field
The invention relates to the technical field of storage of large batches of materials or loose materials, in particular to a stock ground electronic management system capable of monitoring the excess material quantity in real time and a using method thereof.
Background
A series of construction supporting plants including concrete mixing stations are used in conjunction with a stock ground to store and dispense materials.
The daily commercial concrete amount provided by the concrete mixing station is very huge, so that the material coming from and taking from a material yard matched with the commercial concrete amount are very frequent. For a stockyard, weighing is needed for both incoming materials and taking materials, a partitioned handwriting board is used for recording after each weighing, and the excess materials are manually calculated according to recorded incoming material and taking material information (the existing weighbridges cannot bear materials for a long time, so that the excess material amount cannot be monitored in real time by the weighbridges), so that stockyard management is realized.
At present, the management mode of a stock ground has various problems:
one is the time required for weighing, and when the materials are fed and taken frequently, long queues are often required, so that the efficiency is very low;
the second is that the weighing is that of the whole vehicle, the error is very large, a grey zone for the operation of a dark box is left, and the residual material amount is inaccurate;
thirdly, the partitioned handwriting board is easy to have the conditions of wrong identification and untimely updating, and further causes inaccurate excess material quantity;
and fourthly, abnormal conditions such as storage loss, use and theft are difficult to monitor, and further the excess material quantity is inaccurate.
Due to the four problems, the residual material amount of the stock ground can not be known accurately, the storage capacity of the existing stock ground is often much higher than the actual requirement so as to overcome various errors, and the problem of the other aspect is brought.
For the material yards with less frequent material handling, such as the granaries, the requirement for monitoring the excess material amount in real time is more urgent.
Disclosure of Invention
The invention provides a stockyard electronic management system capable of monitoring the excess material amount in real time and a using method thereof.
The technical problem to be solved is that: the existing partitioned handwriting board management mode of the stock yard can cause that the excess stock quantity is difficult to accurately know, thereby influencing the throughput of the stock yard, causing the capacity loss of the stock yard and the material waste.
In order to solve the technical problems, the invention adopts the following technical scheme: a stock ground electronic management system capable of monitoring the excess material amount in real time is used for recording and displaying incoming material information, material taking information and excess material information in a stock ground; the system comprises pressure sensors embedded in bottom plates of all storage bins of a stock yard, field interaction terminals which are arranged on the edges of the corresponding storage bins in a one-to-one correspondence manner with the storage bins, and a central control computer which is electrically connected with all the field interaction terminals respectively;
the field interaction terminal is provided with an input device for inputting information and a display screen for displaying the information, and the input device and the display screen are respectively and electrically connected with the central control computer;
the bottom plate of the storage bin is a flat hardened bottom plate, the bottom plate of the storage bin is uniformly divided into a plurality of grids with the same area, and the geometric center of each grid is provided with a pressure sensor; the pressure sensing elements of the pressure sensors are arranged in parallel with the upper surface of the bottom plate, and the pressure sensors are electrically connected with the central control computer respectively.
Further, the field interaction terminal is also provided with a sample box for storing the incoming material sample of the storage bin.
Further, the input device includes a keyboard, and an option key for quickly inputting information with limited options.
Further, the display screen of the field interaction terminal is a touch display screen, the keyboard is a virtual keyboard on the touch display screen, and the option keys are virtual keys on the touch display screen.
Furthermore, a fine particle layer which is used for enabling the pressure sensor to accurately detect the ground pressure of the large particle materials and consists of the fine particle materials is paved on the bottom plate of the storage bin.
Furthermore, the pressure sensors are piezoresistive sensors, each field interaction terminal is also provided with a lower computer for data interaction, and each pressure sensor, the input device and the display screen of the same bin are electrically connected with a central control computer serving as an upper computer through the same set of lower computer.
A usage method of a stock ground electronic management system capable of monitoring the excess material amount in real time is characterized in that the stock ground electronic management system capable of monitoring the excess material amount in real time is used for managing incoming materials, taking materials and excess materials of a stock ground; and comprises the following steps:
the method comprises the following steps: designing an incoming material information input interface, a material taking information input interface and a residual material information display interface, and designing interface switching logic;
step two: when feeding, incoming materials are directly put into a warehouse without excess weight, then an incoming material information input interface is called out at a field interaction terminal, incoming material information is input and transmitted to a central control computer for recording, wherein the incoming material amount is obtained by the change of the residual material amount;
when material is taken, the vehicle after material taking is directly driven out of a stock ground without weighing, then a material taking information input interface is called out at a field interaction terminal, material taking information is input and is transmitted to a central control computer for recording, wherein the material taking amount is obtained by the change of the excess material amount;
when material taking is carried out, a material taking information input interface is called out at the site interaction terminal, material taking information is input and is transmitted to the central control computer for recording;
and the surplus material amount of each storage bin is obtained by the central control computer, transmitted to the field interaction terminal of each storage bin, aggregated with the incoming material information and the taking material information, and displayed on a surplus material information display interface.
Further, the central control computer judges whether each pressure sensor is damaged or not through heartbeat signals.
Further, in the second step, if it is detected that the pressure sensor is damaged, the pressure data of the damaged pressure sensor is replaced by the average value of the pressure data measured by the adjacent pressure sensors.
Further, in the first step, the incoming material information input interface and the incoming material information input interface are both double-row tables, the left side of the double-row tables is information type, the right side of the double-row tables is input box, and after clicking the input box, a virtual keyboard and virtual keys which accord with the information type to be input in the input box are popped up.
Compared with the prior art, the stock ground electronic management system capable of monitoring the excess material amount in real time and the use method thereof have the following beneficial effects:
according to the invention, the bin bottom plate is divided into grids with equal sizes, then the pressure intensity of the material pile in the bin to each grid is detected in real time by using the pressure sensor, and the excess material amount is obtained according to the pressure intensity, so that the excess material amount of the material pile is monitored in real time;
according to the invention, the excess material quantity is changed to obtain the material quantity and the material taking quantity, and the material feeding and taking do not need weighing, so that the vehicle queue is avoided, and the material yard throughput efficiency is greatly improved; meanwhile, the error caused by weighing of the whole vehicle is avoided;
in the invention, all data are recorded and updated in time through the field interactive terminal, so that the problems of wrong identification and untimely update caused by adopting a partitioned handwriting board are solved;
in the invention, the excess material quantity is monitored in real time, and abnormal conditions such as storage loss, use, theft and the like can be found and recorded in the central control computer in time, so that the possibility of dark box operation is eliminated, the storage capacity of a stock ground can be fully utilized, and the capacity waste and material caking are avoided.
Drawings
FIG. 1 is a schematic structural diagram of a stockyard electronic management system capable of monitoring the amount of excess material in real time according to the present invention;
FIG. 2 is a schematic diagram of a field interaction terminal;
FIG. 3 is a schematic view of an incoming material information input interface;
the system comprises a pressure sensor 1, a field interaction terminal 2, a display screen 21, a sample box 22 and a central control computer 3.
Detailed Description
In the invention, the feed amount, the material taking amount and the residual material amount are all mass. And the silo is not limited to a solid container, but can also be a region in a stock ground. The pressure sensor 1 is a sensor for measuring pressure. Note that the pressure measured by the pressure sensor 1 is the actual pressure of the pile at the position of the pressure sensor 1 to the ground, and therefore, the pile mass is more accurate than that obtained by the pile shape and the pile density in the prior art.
As shown in fig. 1-2, a stock ground electronic management system capable of monitoring the amount of excess material in real time is used for recording and displaying incoming material information, material taking information and excess material information in a stock ground; the system comprises pressure sensors 1 embedded in bottom plates of all storage bins of a stock yard, field interaction terminals 2 which are arranged on the edges of the corresponding storage bins in a one-to-one correspondence manner with the storage bins, and a central control computer 3 which is respectively and electrically connected with the field interaction terminals 2; the field interactive terminal 2 is provided with an input device for inputting information and a display screen 21 for displaying information, and the input device and the display screen 21 are respectively and electrically connected with the central control computer 3.
The bottom plate of the storage bin is a flat hardened bottom plate, the bottom plate of the storage bin is uniformly divided into a plurality of grids with the same area, and the geometric center of each grid is provided with a pressure sensor 1; the pressure sensitive elements of the pressure sensors 1 are arranged flush with the upper surface of the bottom plate, and each pressure sensor 1 is electrically connected with the central control computer 3. Note that the grid is distributed over the floor of the silo, but it is also possible to divide the grid only in the areas where material is deposited, if only a part of the area of the silo is used for depositing material and the rest of the area is used for other purposes.
When the excess material amount is obtained, the pressure is obtained by multiplying the pressure of the bottom surface of the material pile to the ground by the area, and then the mass is obtained by using the pressure. The floor of the silo must therefore be ensured to be flat and not yielding, while the pressure-sensitive element of the pressure sensor 1 is flush with the upper surface of the floor, so that the pressure measured is multiplied by the area.
When the material particles are small, the bottom surface of the material pile is relatively flat, the pressure intensity measured by the pressure sensor 1 is accurate, when the material pile particles are large or the material pile particles are stacked in a bag, the pressure intensity measured by the pressure sensor 1 is not accurate enough, so that when large-particle materials such as stones or bagged materials are stacked, a fine particle layer formed by fine-particle materials is spread on the bottom plate of the storage bin, and the requirement can be met when the thickness of the general fine particle layer is more than two centimeters. The material in the fine particle layer should not affect the material in the pile by mixing with the material in the pile in a small amount, and the smaller the particle size of the fine particle material, the better. For the stock ground of piling up building raw materials, the fine grained layer can select sand, for the granary, the fine grained layer can select millet.
The field interaction terminal 2 also carries a sample box 22 for storing a sample of the bin incoming material.
The input device includes a keyboard and an option key for quickly inputting information with limited options. The option key here refers to the options of information that may be filled, such as material type, and the options of sand, stone, cement, etc. are set, and the corresponding option key is pressed to automatically fill.
The display screen 21 of the field interaction terminal 2 is a touch display screen, the keyboard is a virtual keyboard on the touch display screen, and the option keys are virtual keys on the touch display screen. Therefore, the appearance of the whole field interactive terminal 2 is simple, and the virtual keyboard and the virtual keys can be changed according to requirements.
The pressure sensor 1 is a piezoresistive sensor, the pressure sensor 1 is not easy to damage on the occasion of the invention, and the capacitance property of the object to be measured is not required. Note that the pressure-receiving surface of the pressure-sensitive element of the piezoresistive sensor is as flat as possible, the area of the pressure-sensitive element is large, the pressure-receiving surface is at least flat and more than 2 square centimeters, and the pressure-receiving surface is not provided with a duct or a step surface.
Each field interaction terminal 2 is also provided with a lower computer for data interaction, and each pressure sensor 1, an input device and a display screen 21 of the same storage bin are electrically connected with a central control computer 3 serving as an upper computer through the same lower computer. The lower computer can be a single chip microcomputer or a PLC controller, the function of the lower computer is to collect data for interaction, otherwise, if each pressure sensor 1 is directly and electrically connected with the central control computer 3, the connection is extremely complex and is extremely easy to damage.
A usage method of a stock ground electronic management system capable of monitoring the excess material amount in real time is characterized in that the stock ground electronic management system capable of monitoring the excess material amount in real time is used for managing incoming materials, taking materials and excess materials of a stock ground; and comprises the following steps:
the method comprises the following steps: designing an incoming material information input interface, a material taking information input interface and a residual material information display interface, and designing interface switching logic;
the three interfaces can be stored in a lower computer or a central control computer 3; the interface switching logic can be switched by a special switching button or by gestures on the touch display screen.
Step two: when feeding, incoming materials are directly put into a warehouse without excess weight, then an incoming material information input interface is called out at the site interaction terminal 2, incoming material information is input and transmitted to the central control computer 3 for recording, wherein the incoming material amount is obtained by the change of the excess material amount; namely the amount of the excess material after unloading is the amount of the incoming material;
when material is taken, the vehicle after material taking is directly driven out of a stock ground without weighing, then a material taking information input interface is called out at the site interaction terminal 2, material taking information is input and is transmitted to the central control computer 3 for recording, wherein the material taking amount is obtained by the change of the excess material amount; namely the amount of the excess material after loading is the amount of the incoming material;
when material taking is carried out, a material taking information input interface is called out at the site interactive terminal 2, material taking information is input and is transmitted to the central control computer 3 for recording;
the surplus material amount of each storage bin is obtained by the central control computer 3, transmitted to the field interaction terminal 2 of each storage bin, and is displayed on a surplus material information display interface after being aggregated with the incoming material information and the taking material information; the residual material amount of each bin is obtained by multiplying the pressure detected by each pressure sensor 1 in the bin by the area of a single grid, summing the pressure and dividing the sum by the gravity acceleration.
The weight of the whole pile is obtained by adopting a finite element thought, the pile is a geometric body with an irregular shape, the ground pressure can be obtained by integrating the ground pressure on the bottom surface of the pile at each point of the bottom surface of the pile, and then the ground pressure is divided by the gravity acceleration to obtain the mass of the pile, but the ground pressure at each point of the bottom surface of the pile is different, namely, an infinite number of pressure sensors 1 are needed, which is obviously unrealistic. Therefore, we assume here that the pressure of the pile in a single grid is uniform, and then replace the pressure of the whole grid with the pressure of the pile at the center of the grid, which greatly simplifies the calculation process and reduces the amount of the pressure sensor 1 used. And when the grid is sufficiently small, the error is negligible. In practical use, for a common stock bin, the error of the measured excess material amount can be smaller than five thousandths by using the grid which is not larger than 50 centimeters square, and the error is smaller when the stock bin is full.
Of course, the pressure data measured by each pressure sensor 1 can be used to fit the range of the bottom surface of the pile, the pressure is a dependent variable, the coordinate is a function of an independent variable, and then the integral is obtained to obtain the pressure of the pile to the ground, so that the measurement error can be further reduced. The method can be conveniently realized by adopting the existing finite element software, and the conditional stock ground can be realized by adding a finite element module into the monitoring software according to the requirement, and the description is omitted.
The central control computer 3 judges whether each pressure sensor 1 is damaged or not through the heartbeat signal. This is a common means in automation control and is not described here.
In the second step, if it is detected that the pressure sensor 1 is damaged, the pressure data of the damaged pressure sensor 1 is replaced by the average value of the pressure data measured by the pressure sensors 1 adjacent to the damaged pressure sensor 1. It is not practical to replace the pressure sensor 1 immediately after a damage, and therefore the average value of the peripheral data is used instead, which does not cause any significant error. The damaged pressure sensor 1 is replaced again during regular maintenance.
In the first step, the incoming material information input interface and the incoming material information input interface are both double-row tables, the left side of the double-row tables is an information type, the right side of the double-row tables is an input box, and a virtual keyboard and virtual keys which accord with the information type to be input in the input box are popped up after the input box is clicked.
In this embodiment, as shown in fig. 3, the incoming material information input interface records the material name, specification and model, the number of entries, the place of production, the report number, the entry date, the inspection date, and the inspection state; the layout of the material taking information input interface is similar to that of the material taking information input interface, and information such as material taking time, material taking units, application and the like is recorded. Different stock yards can be designed according to the needs of the stock yard, and the details are not repeated.
Taking the incoming material information input interface as an example, in the embodiment, the input box on the right side of the material name is clicked, virtual keys such as broken stone, sand, cement and the like are skipped out, and a virtual keyboard capable of inputting numbers, Chinese characters and letters is used;
clicking the right input box of the specification model, popping up virtual keys corresponding to several common specifications corresponding to the input materials, and a virtual keyboard capable of inputting numbers, Chinese characters and letters;
clicking an input box on the right side of the approach number, and only popping up a virtual keyboard capable of inputting numbers; the entering quantity, namely the incoming material quantity, is obtained by the variable quantity of the excess material quantity, not only can be manually calculated and manually input, but also can be automatically calculated and filled by a lower computer or a central control computer 3, and the material taking quantity is similar;
clicking the right input box of the production place, popping up a virtual key corresponding to the common production place and a virtual keyboard capable of inputting Chinese characters;
clicking an input box on the right side of the report number, and only popping up a virtual keyboard capable of inputting numbers;
clicking an input box on the right side of the incoming date, and only popping up a virtual keyboard capable of inputting numbers;
clicking an input box on the right side of the check date, and only popping up a virtual keyboard capable of inputting numbers;
and clicking the input box on the right side of the inspection state, and only popping three virtual keys of to-be-inspected, qualified and unqualified keys.
Thus, the input efficiency is extremely high.
The retraction of the virtual keyboard and virtual keys may be such that: when another input box is clicked, the current virtual keyboard and virtual keys are retracted, and the virtual keyboard and virtual keys corresponding to the next input box are popped up; the virtual keyboard and virtual keys now are retrieved when the areas outside the keys, keyboard, and input box on the display 21 are clicked.
The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.
Claims (10)
1. A stock ground electronic management system capable of monitoring the excess material amount in real time is used for recording and displaying incoming material information, material taking information and excess material information in a stock ground; the method is characterized in that: the system comprises pressure sensors (1) embedded in bottom plates of all storage bins of a stock yard, field interaction terminals (2) which are arranged on the edges of the corresponding storage bins in a one-to-one correspondence manner with the storage bins, and a central control computer (3) which is electrically connected with all the field interaction terminals (2) respectively;
the field interaction terminal (2) is provided with an input device for inputting information and a display screen (21) for displaying the information, and the input device and the display screen (21) are respectively and electrically connected with the central control computer (3);
the bottom plate of the storage bin is a flat hardened bottom plate, the bottom plate of the storage bin is uniformly divided into a plurality of grids with the same area, and the geometric center of each grid is provided with a pressure sensor (1); the pressure sensitive elements of the pressure sensors (1) are arranged in parallel with the upper surface of the bottom plate, and the pressure sensors (1) are electrically connected with the central control computer (3) respectively.
2. The stock ground electronic management system capable of monitoring the excess stock amount in real time according to claim 1, characterized in that: the field interaction terminal (2) is also provided with a sample box (22) for storing a bin incoming sample.
3. The stock ground electronic management system capable of monitoring the excess stock amount in real time according to claim 1, characterized in that: the input device includes a keyboard and an option key for quickly inputting information with limited options.
4. The stock ground electronic management system capable of monitoring the excess stock amount in real time according to claim 3, characterized in that: the display screen (21) of the field interaction terminal (2) is a touch display screen, the keyboard is a virtual keyboard on the touch display screen, and the option keys are virtual keys on the touch display screen.
5. The stock ground electronic management system capable of monitoring the excess stock amount in real time according to claim 1, characterized in that: and a fine particle layer which is used for enabling the pressure sensor (1) to accurately detect the ground pressure of the large particle materials and consists of the fine particle materials is paved on the bottom plate of the storage bin.
6. The stock ground electronic management system capable of monitoring the excess stock amount in real time according to claim 1, characterized in that: the pressure sensors (1) are piezoresistive sensors, each field interaction terminal (2) is also provided with a lower computer for data interaction, and each pressure sensor (1), an input device and a display screen (21) of the same bin are electrically connected with a central control computer (3) serving as an upper computer through the same set of lower computer.
7. A use method of a stock ground electronic management system capable of monitoring the excess stock amount in real time is characterized in that: the stock ground electronic management system capable of monitoring the excess material amount in real time is adopted to manage the incoming material, the taking material and the excess material of the stock ground; and comprises the following steps:
the method comprises the following steps: designing an incoming material information input interface, a material taking information input interface and a residual material information display interface, and designing interface switching logic;
step two: when feeding, incoming materials are directly put into a warehouse without excess weight, then an incoming material information input interface is called out at the site interaction terminal (2), incoming material information is input and transmitted to the central control computer (3) for recording, wherein the incoming material amount is obtained by the change of the excess material amount;
when material is taken, the vehicle after material taking is directly driven out of a stock ground without weighing, then a material taking information input interface is called out at a field interaction terminal (2), material taking information is input and is transmitted to a central control computer (3) for recording, wherein the material taking amount is obtained by the change of the excess material amount;
the surplus material amount of each storage bin is obtained by the central control computer (3), transmitted to the field interaction terminal (2) of each storage bin, and is displayed on the surplus material information display interface after being aggregated with the incoming material information and the taking material information.
8. The use method of the stock ground electronic management system capable of monitoring the excess stock amount in real time according to claim 7, is characterized in that: and the central control computer (3) judges whether each pressure sensor (1) is damaged or not through heartbeat signals.
9. The use method of the stock ground electronic management system capable of monitoring the excess stock amount in real time according to claim 8, is characterized in that: and in the second step, if the pressure sensor (1) is detected to be damaged, the pressure data of the damaged pressure sensor (1) is replaced by the average value of the pressure data measured by the adjacent pressure sensors (1).
10. The use method of the stock ground electronic management system capable of monitoring the excess stock amount in real time according to claim 7, is characterized in that: in the first step, the incoming material information input interface and the incoming material information input interface are both double-row tables, the left side of the double-row tables is an information type, the right side of the double-row tables is an input box, and a virtual keyboard and virtual keys which accord with the information type to be input in the input box are popped up after the input box is clicked.
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| CN109363782A (en) * | 2018-11-02 | 2019-02-22 | 中国医学科学院北京协和医院 | A kind of facial protective film with pressure sensor |
| CN112639643A (en) * | 2019-07-19 | 2021-04-09 | 胜科工业有限公司 | System and method for auditing parameters of a sewage treatment plant |
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| CN104977070A (en) * | 2014-04-10 | 2015-10-14 | 湖南三德科技股份有限公司 | Stock yard weight detection method and system |
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