Automatic inventory method for large raw material yard

Abstract

An automatic inventory method of a large raw material yard, comprising the following steps: 1) a plurality of belt scales are arranged at the entrance and exit of the raw material yard, and each belt scale is connected with an inventory computer for controlling the belt scale metering through a computer network; 2) the original inventory material of the raw material yard is manually inventoried; 3) when the material is stored or discharged, the following method is used for automatic inventory once: 3-1) storage: the belt scale arranged at the entrance of the raw material yard is used to send the batch of materials into the raw material yard, the inventory computer adds the inventory weight of the batch of materials before storage to the storage weight of the batch of materials to obtain the inventory weight of the batch of materials after storage; 3-2) discharge: the belt scale arranged at the exit of the raw material yard is used to transport the batch of materials out of the raw material yard, and the inventory computer subtracts the discharge weight of the batch of materials from the inventory weight of the batch of materials before discharge to obtain the inventory weight of the batch of materials after discharge.

Description

Technical Field

[0001] This invention relates to the field of raw material yard metering, and more specifically to an automatic inventory method for large raw material yards. Background Technology

[0002] The raw material yard is a large area for storing raw materials, containing a wide variety of materials, and most of these materials are stored in open, dispersed locations. Because these materials are constantly being fed in and out, the inventory weight is constantly changing. To understand the inventory information of the raw material yard, managers must conduct an inventory check every six months or a year to obtain accurate inventory data. Currently, the inventory work in the raw material yard relies on manually measuring the volume of the material piles to calculate the material weight, which is not only time-consuming and labor-intensive, but also extremely costly and prone to errors. Even with the use of inventory scanners, drones, and video imaging technologies, although inventory efficiency can be improved and the workload reduced to some extent, the obtained inventory data often does not match the actual weight of the raw materials in the yard, still failing to meet the required inventory accuracy.

[0003] The accuracy of raw material inventory is the core issue. How to improve inventory efficiency while ensuring that the inventory accuracy meets the requirements has always been a problem that needs to be solved in this field. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing an automated inventory method for large raw material yards. This method uses a high-precision belt scale to replace the stacker-reclaimer to directly obtain the weight of materials entering and leaving the warehouse. It utilizes a computer network to transmit the data and employs an inventory computer for real-time calculations. This allows for the acquisition of accurate inventory data during the material entry and exit stages, improving inventory efficiency while ensuring that the inventory accuracy meets requirements.

[0005] The objective of this invention is achieved through the following approach:

[0006] An automated inventory method for a large raw material yard includes the following steps:

[0007] 1) Several belt scales are installed at the entrance and exit of the raw material yard, and each belt scale is connected to the inventory computer used to control the measurement of the belt scales through a computer network.

[0008] 2) Manually inventory the existing stock of materials in the raw material yard, and store the accurate inventory of each material after the inventory as the inventory weight of each material in the raw material yard before automatic inventory in the inventory computer.

[0009] 3) When materials are received or issued, an automatic inventory check shall be performed using the following method:

[0010] 3-1) Warehousing:

[0011] When a batch of materials needs to be stored in the raw material yard, the materials are sent into the raw material yard by a belt scale set at the entrance of the raw material yard. During the transportation process, the belt scale transmits the weight of the materials entering the warehouse to the inventory computer through the computer network. The inventory computer adds the inventory weight of the materials before the materials enter the warehouse to the weight of the materials entering the warehouse to obtain the inventory weight of the materials after the materials enter the warehouse, and stores it in the inventory computer.

[0012] 3-2) Outbound:

[0013] When a batch of materials needs to be taken out of the raw material yard, the materials are transported out of the raw material yard by a belt scale set at the exit of the raw material yard. During the transportation process, the belt scale transmits the outbound weight of the materials to the inventory computer through the computer network. The inventory computer subtracts the outbound weight of the materials from the inventory weight of the same type of materials before the materials leave the warehouse, and obtains the inventory weight of the same type of materials after the materials leave the warehouse, and stores it in the inventory computer.

[0014] Preferably, the belt scale is a high-precision belt scale.

[0015] Preferably, the belt scale includes an inbound belt scale and an outbound belt scale. Each inbound and outbound belt scale is numbered according to the type of material being transported. Each type of material is entered into or exited using the belt scale corresponding to that material number.

[0016] Preferably, an industrial control computer is set up on the computer network, and each belt scale is connected to the inventory computer through the industrial control computer.

[0017] Preferably, the computer network includes wired networks and wireless networks.

[0018] The advantages of this invention are as follows:

[0019] ① Belt scales are installed at both the inlet and outlet of the raw material yard to replace stacker-reclaimers for material transportation. This allows for accurate measurement of material weights during the material entry and exit stages, and the data is conveniently and quickly transmitted to the inventory computer via computer network for real-time calculation of the accurate inventory weight after inventory changes. Each time material enters or leaves the warehouse, the inventory computer performs an automatic inventory based on the data transmitted by the belt scales. Both the inventory efficiency and accuracy are far superior to the original method of manually measuring the volume of material piles to calculate the inventory weight.

[0020] ② The belt scales used in this invention are all high-precision belt scales. High-precision belt scales refer to those with a detection accuracy of ±0.1% or less under the premise of small creep and high durability. Medium-precision belt scales refer to those with a detection accuracy of ±(0.1%~0.5%) under the premise of small creep and high durability; ordinary-precision belt scales refer to those with a detection accuracy of ±(0.5%~1%) under the premise of small creep and high durability. Obviously, the high-precision belt scales used in this invention can greatly improve inventory accuracy.

[0021] ③ This invention classifies and numbers each belt scale according to the type of material being transported. Each type of material is put into storage or taken out of storage using the belt scale corresponding to that material number, which ensures that the measurement data obtained by the inventory computer is accurate and reliable, thereby improving inventory accuracy.

[0022] ④ This invention sets up an industrial control computer on a computer network, enabling each belt scale to connect to the inventory computer through this industrial control computer. The entire inventory system constitutes a three-level data transmission structure:

[0023] (1) Each belt scale is in the first stage, used to accurately obtain inbound and outbound data during the material inbound and outbound stages;

[0024] (2) The industrial control computer is at the second level. It is used to collect, process, store and back up the measurement data obtained by each belt scale and transmit the control instructions of the computer to the belt scale to avoid network signal attenuation due to long distance, which would cause data errors.

[0025] (3) The inventory computer is at the third level. In addition to backing up and calculating the belt scale measurement data transmitted by the industrial control computer, the raw material yard manager can also issue control commands for the belt scale through the application software set on the inventory computer when materials need to be put into or taken out of the warehouse, and observe the real-time inventory data of the entire raw material yard, so as to accurately understand the inventory status of each material in the raw material yard.

[0026] ⑤ The present invention can freely choose to use a highly stable wired network to transmit data, or to use a wireless network that is not limited by space, depending on the specific site conditions of the raw material yard, making the whole system more flexible and reducing costs. Attached Figure Description

[0027] Figure 1 This is a flowchart of the present invention;

[0028] Figure 2 This is a schematic diagram of the inventory system structure used in this invention. Detailed Implementation

[0029] like Figure 1 As shown, an automated inventory method for a large raw material yard includes the following steps:

[0030] 1) Several belt scales are installed at the inlet and outlet of the raw material yard, and each belt scale is connected to the inventory computer used to control the operation and measurement of the belt scales through a computer network.

[0031] 2) Manually inventory the existing stock of materials in the raw material yard, and store the accurate inventory of each material after the inventory as the inventory weight of each material in the raw material yard before automatic inventory in the inventory computer.

[0032] 3) When materials are received or issued, an automatic inventory check shall be performed using the following method:

[0033] 3-1) Warehousing:

[0034] When a batch of materials needs to be stored in the raw material yard, the materials are sent into the raw material yard by a belt scale set at the entrance of the raw material yard. During the transportation process, the belt scale transmits the weight of the materials entering the warehouse to the inventory computer through the computer network. The inventory computer adds the inventory weight of the materials before the materials enter the warehouse to the weight of the materials entering the warehouse to obtain the inventory weight of the materials after the materials enter the warehouse, stores it in the inventory computer, and updates the real-time inventory data of the raw material yard.

[0035] 3-2) Outbound:

[0036] When a batch of materials needs to be taken out of the raw material yard, the materials are transported out of the raw material yard by a belt scale set at the exit of the raw material yard. During the transportation process, the belt scale transmits the outbound weight of the materials to the inventory computer through the computer network. The inventory computer subtracts the outbound weight of the materials from the inventory weight of the same type of materials before the materials leave the yard to obtain the inventory weight of the same type of materials after the materials leave the yard, stores it in the inventory computer, and updates the real-time inventory data of the raw material yard.

[0037] In this embodiment, if the automatic inventory after the batch of materials enters the warehouse or leaves the warehouse is the first automatic inventory of the raw material yard, then the inventory weight of this type of material before entering the warehouse or leaving the warehouse can be obtained by the inventory weight of each material in the raw material yard before the automatic inventory described in step 2).

[0038] If the automatic inventory after this batch of materials enters or leaves the warehouse is not the first automatic inventory of the raw material yard, the inventory weight of this type of material before entering or leaving the warehouse will be obtained based on the updated real-time inventory data of the raw material yard.

[0039] The inventory system structure used in the above-mentioned automatic inventory method is as follows: Figure 2As shown, the belt scale is a high-precision belt scale, which includes an inbound belt scale and an outbound belt scale. Each inbound and outbound belt scale is numbered according to the type of material being transported. Each type of material is entered into or exited from the warehouse using the belt scale corresponding to that material number.

[0040] For example:

[0041] (1) For the first type of material, a first inbound belt scale and a first outbound belt scale are set up accordingly;

[0042] (2) For the second type of material, a second inbound belt scale and a second outbound belt scale shall be set up accordingly;

[0043] (3) For the third type of material, a third inbound belt scale and a third outbound belt scale shall be set up accordingly;

[0044] ...

[0045] (n) For the nth type of material, there are nth inbound belt scales and nth outbound belt scales.

[0046] By classifying and numbering each belt scale according to the type of material being transported, each type of material can only be put into or taken out of the warehouse using the belt scale corresponding to that material number. This prevents the inventory computer from mistakenly using the inbound and outbound data of other different types of materials as the inbound and outbound data of the material itself, ensuring that the measurement data obtained by the inventory computer is accurate and reliable, thereby improving inventory accuracy.

[0047] In this embodiment, an industrial control computer is set up on the computer network, so that each belt scale can be connected to the inventory computer through the industrial control computer. The entire inventory system constitutes a three-level data transmission structure:

[0048] (1) Each belt scale is in the first stage, used to accurately obtain inbound and outbound data during the material inbound and outbound stages;

[0049] (2) The industrial control computer is at the second level. It is used to collect, process, store and back up the measurement data obtained by each belt scale and transmit the control instructions of the computer to the belt scale to avoid network signal attenuation due to long distance, which would cause data errors.

[0050] (3) The inventory computer is at the third level. In addition to backing up and calculating the belt scale measurement data transmitted by the industrial control computer, the raw material yard administrator can also issue control commands for the belt scale through the application software set on the inventory computer when materials need to be put into or taken out of the warehouse, and observe the real-time inventory data of the entire raw material yard (including the batch, time, weight, and current inventory of each material in and out of the raw material yard), so as to accurately understand the inventory status of each material in the raw material yard.

[0051] The computer network includes wired and wireless networks. In order to ensure the stability of inventory accuracy, this embodiment uses a highly stable wired network to transmit data, thereby minimizing the possibility of data transmission errors.

[0052] This invention establishes a simple automatic inventory system, which not only ensures inventory efficiency but also avoids excessive overall errors caused by complex system structures, ensuring that the inventory accuracy error is no more than two per thousand, which fully meets the inventory management requirements of raw material yards.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications made to the present invention by those skilled in the art without departing from the spirit of the present invention shall fall within the protection scope of the present invention.

Claims

1. An automated inventory method for a large raw material yard, characterized in that, Includes the following steps: 1) Several belt scales are installed at the inlet and outlet of the raw material yard. The belt scales are high-precision belt scales with a detection accuracy of ±0.1% or less. Each belt scale is connected to an inventory computer for controlling the measurement of the belt scales through a computer network. An industrial control computer is set up on the computer network. Each belt scale is connected to the inventory computer through the industrial control computer, forming a three-level data transmission structure. In the three-level data transmission structure: Each belt scale is in the first stage, used to replace the stacker reclaimer for material transportation, and to accurately obtain the weight of materials entering and leaving the warehouse during the material entry and exit stages; The industrial control computer is at the second level. It is used to collect, process, store and back up the metering data acquired by each belt scale and to transmit the control commands of the computer to the belt scale. This avoids the network signal from attenuating due to long distances, which could lead to data errors. The inventory computer is at the third level, used to issue control commands to the belt scale, as well as to back up and calculate the belt scale metering data transmitted by the industrial control computer; The belt scales include inbound belt scales and outbound belt scales. Each inbound and outbound belt scale is numbered according to the type of material being transported. Each type of material is inbound or outbound using the belt scale corresponding to that material number. 2) Manually inventory the existing stock of materials in the raw material yard, and store the accurate inventory of each material after the inventory as the inventory weight of each material in the raw material yard before automatic inventory in the inventory computer. 3) When materials are received or issued, an automatic inventory is performed using the following method, without relying on the volume or bulk density of the material pile, ensuring that the inventory accuracy error is no greater than two per thousand: 3-1) Warehousing: When a batch of materials needs to be stored in the raw material yard, the materials are sent into the raw material yard by a belt scale set at the entrance of the raw material yard. During the transportation process, the belt scale transmits the weight of the materials entering the warehouse to the inventory computer through the computer network. The inventory computer adds the inventory weight of the materials before the materials enter the warehouse to the weight of the materials entering the warehouse to obtain the inventory weight of the materials after the materials enter the warehouse, and stores it in the inventory computer. 3-2) Outbound: When a batch of materials needs to be taken out of the raw material yard, the materials are transported out of the raw material yard by a belt scale set at the exit of the raw material yard. During the transportation process, the belt scale transmits the outbound weight of the materials to the inventory computer through the computer network. The inventory computer subtracts the outbound weight of the materials from the inventory weight of the same type of materials before the materials leave the warehouse, and obtains the inventory weight of the same type of materials after the materials leave the warehouse, and stores it in the inventory computer.

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