Automatic weighing method and system for concrete mixing plant

Abstract

The invention discloses an automatic weighing method and system for a concrete mixing plant, and relates to the technical field of automatic weighing, and the method comprises the steps: employing a concrete ERP system to collect the delivery information of a concrete mixer, and employing a client APP or a driver to scan a two-dimensional code to collect the delivery information of raw materials; the method comprises the following steps: automatically weighing a vehicle through a wagon balance, and comparing a license plate of the vehicle with delivery information to judge the type of the vehicle; if the mixer truck is a mixer truck, automatically judging whether the delivery weight of the mixer truck is consistent or not through delivery information, and automatically judging the volume of excess materials in the mixer truck when the mixer truck returns to a factory; if the vehicle is a raw material vehicle, the system automatically distributes a bin when the raw material vehicle is weighed; an electronic lock is additionally arranged on a bin, so that a driver returns a card at an automatic card receiving machine when leaving a factory. Manual intervention is greatly reduced, the risk of human errors is reduced, a driver can be effectively prevented from mistakenly feeding materials during discharging, and therefore the accuracy of the production process is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of automatic weighing, and in particular to an automatic weighing method and system for a concrete mixing station. Background Art

[0002] In the field of construction engineering, concrete is a key building material. The accuracy and efficiency of its production and supply are crucial to the quality and progress of the project. Traditional concrete mixing plants often have many problems in the management of raw materials and mixer trucks. In the process of receiving and storing raw materials, they usually rely on manual recording and arranging storage locations, which is inefficient and prone to errors. Manual judgment of the unloading location of the raw material vehicle may cause the driver to misplace the material, affecting the normal production, and also increasing the difficulty and cost of raw material management. The weighing and information collection of raw material vehicles are also mostly manual operations, and the accuracy and timeliness of the data are difficult to guarantee. In the process of concrete mixer trucks, the In terms of management, the collection of mixer truck delivery information under traditional methods mainly relies on paper records or simple electronic spreadsheets, which are prone to information omissions and errors. The weighing of mixer trucks often requires manual guidance and recording, and the accuracy of the weighing results is easily affected by human factors. When the mixer truck returns to the factory, the determination of the volume of residual material in the truck is mostly estimated, which is difficult to achieve accurate measurement. With the continuous development of the construction industry and the advancement of science and technology, higher requirements are placed on the management of concrete mixing stations. A more intelligent and automated weighing method and system is needed to improve production efficiency, ensure data accuracy, reduce management costs, and ensure the quality of concrete and the smooth progress of the project.

[0003] At present, there are still many problems with the existing automatic weighing methods and systems of concrete mixing stations, including: the delivery information of concrete mixer trucks is mostly recorded manually or in simple electronic spreadsheets, which is prone to information omissions and errors, and the collection efficiency is low. The collection of raw material delivery information relies on manual inquiries and records, which is not only time-consuming and labor-intensive, but also difficult to ensure data accuracy. There is a lack of automated processes, and the connection between various links is not smooth, resulting in low management efficiency. There is a lack of effective means to prevent drivers from hitting the wrong materials, which increases the risks and costs of raw material management. Generally, card information cannot be automatically generated based on delivery data, resulting in a cumbersome card production process and prone to information omissions or errors. Summary of the invention

[0004] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] In view of the problems existing in the above-mentioned automatic weighing method and system of the existing concrete mixing station, the present invention is proposed.

[0006] Therefore, the purpose of the present invention is to provide an automatic weighing method and system for a concrete mixing station, which is suitable for solving the problems of manual recording or simple electronic spreadsheet recording, which is prone to information omissions and errors, low collection efficiency, lack of automated processes, and poor connection between various links, resulting in low management efficiency and lack of effective means to prevent drivers from hitting the wrong materials.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0008] In a first aspect, an embodiment of the present invention provides an automatic weighing method for a concrete mixing station, which includes: using a concrete ERP system to collect delivery information of concrete mixer trucks, and using a customer APP or a driver to scan a QR code to collect raw material delivery information; by simultaneously capturing a photo through license plate recognition, the vehicle type is determined by comparing the vehicle license plate with the delivery information, and then a ground scale is called to automatically weigh the vehicle; if it is a mixer truck, the delivery information is used to automatically determine whether the mixer truck meets the factory weight requirements, and when the mixer truck returns to the factory, it automatically determines whether there is any remaining material in the vehicle and the amount of the remaining material; if it is a raw material vehicle, when the raw material vehicle is weighed, the system automatically allocates a storage space, and writes the storage space information into a card, and the automatic card issuing machine issues the card to the driver, and at the same time reminds the driver of the name of the storage space to be unloaded; by adding an electronic lock to the storage space, the driver returns the card to the automatic card receiving machine when leaving the factory, and the weighing slip is automatically printed.

[0009] As a preferred solution of the automatic weighing method and system of a concrete mixing station of the present invention, the delivery information includes vehicle information and raw material information; the vehicle information includes vehicle model, license plate number, vehicle size and vehicle load capacity; the raw material information includes raw material name, raw material specification and raw material order number; the vehicle type includes concrete vehicle and raw material vehicle; a watermark is automatically added to the photo, and the watermark content includes time, license plate number, scale number and weighing scale weight data; the storage location information includes storage location number, storage location location, current storage volume and maximum storage capacity; the method of reminding the driver of the storage location to unload includes voice and LED text prompts.

[0010] As a preferred solution of the automatic weighing method and system for a concrete mixing station of the present invention, the specific steps of automatically determining whether the factory weight of the mixer truck meets the requirements are as follows:

[0011] Compare the actual weight of the mixer truck obtained by weighing on the scale with the loading capacity required by the order;

[0012] If the actual weight of the mixer truck is within the reasonable range of the loading volume required by the order and historical data, it is determined that the factory weight meets the requirements;

[0013] If the actual weight of the mixer truck is significantly lower than the loading amount required by the order, the mixer truck is considered to be underloaded;

[0014] If the actual weight of the mixer truck is significantly higher than the loading capacity required by the order, the mixer truck is deemed to be overloaded;

[0015] When the judgment result is that the weight meets the requirements, the system records the data normally and the mixer truck can be shipped smoothly;

[0016] When it is determined that there is insufficient or excessive loading, the system will immediately sound an alarm, and the background will automatically remind the dispatcher and the experimenter. The dispatcher will arrange the mixer truck to make adjustments according to the situation, and the experimenter will conduct quality inspection on the concrete that may have problems to ensure that the performance of the concrete is not affected.

[0017] As a preferred solution of the automatic weighing method and system for a concrete mixing station of the present invention, the specific steps of automatically determining the volume of residual material in the mixer truck when the mixer truck returns to the factory are:

[0018] When the mixer truck returns to the factory and passes through the weighbridge, the weighbridge automatically weighs and records the total weight of the vehicle at that time;

[0019] Retrieve the tare weight data of the mixer truck and the production data of this delivery task from the concrete ERP system;

[0020] Subtract the tare weight of the mixer truck from its total weight when it returns to the factory to get the total weight of the concrete in the mixer truck. Then calculate the volume of the remaining concrete in the truck based on the specific bulk density of the delivery task.

[0021] The calculated volume of the remaining material in the truck is displayed on the system interface. At the same time, the background automatically reminds the dispatcher and the experimenter so that they can timely understand the status of the mixer truck's return to the factory and the remaining material, and arrange subsequent processing work.

[0022] As a preferred solution of the automatic weighing method and system of a concrete mixing station of the present invention, the specific steps of automatically allocating bins by the system are as follows:

[0023] When a raw material vehicle is listed, the system automatically obtains the vehicle's weight information through the weighbridge and triggers a series of subsequent operations. The system reads the delivery information;

[0024] The system monitors the working status of each production line in real time and analyzes the urgency of each production line's demand for different raw materials;

[0025] The system queries the current inventory status of each warehouse. For some raw materials with special requirements, it is also necessary to consider whether the warehouse can meet their storage needs;

[0026] Conduct a comprehensive analysis based on the types and quantities of raw materials in the delivery information, combined with the production line's operating conditions and the current inventory in the warehouse;

[0027] The allocated storage location information is written into the card, and the automatic card issuing machine sends the card to the driver. At the same time, the driver is reminded of the name of the storage location where the material is to be unloaded through voice and LED text, ensuring that the driver knows the accurate unloading location.

[0028] As a preferred solution of the automatic weighing method and system of a concrete mixing station of the present invention, whether the storage space meets its storage requirements refers to some admixtures that require specific storage conditions and cement curing time requirements.

[0029] As a preferred solution of the automatic weighing method and system for a concrete mixing station of the present invention, the comprehensive analysis includes:

[0030] Prioritize the allocation of warehouses for materials belonging to the production lines in production. If a certain raw material is urgently needed on multiple production lines, warehouses with smaller inventory will be prioritized. If it is not urgently needed, warehouses that are farther away from other material-loading vehicles will be prioritized according to the warehouse location distribution. If there are multiple warehouses with enough space to store the raw material, the system will prioritize the warehouses that are closer to the production line that is using the raw material to reduce transportation time and cost.

[0031] For some raw materials with large usage, priority will be given to allocating storage spaces with larger spaces to avoid frequent storage adjustments and loading and unloading operations.

[0032] In the second aspect, in order to further solve the above-mentioned technical problems, the present invention provides an automatic weighing system for a concrete mixing station in an embodiment, which includes: a data collection module, which is used to collect delivery information by using an ERP system, a production system, a customer APP or a driver scanning a QR code; a weighing and capturing module, which is used to automatically weigh the vehicle through a floor scale and capture photos while weighing; a weight determination module, which is used to automatically determine whether the weight of the mixer truck meets the requirements when it leaves the factory, and automatically determine the amount of remaining material in the truck when the mixer truck returns to the factory; a bin allocation module, which is used to automatically allocate bins when the raw material vehicle is weighed, and write the bin information into a card, and send the card to the driver through an automatic card issuing machine; a safe material delivery module, which is used to prevent the driver from delivering the wrong material, and to add an electronic lock to the bin. When leaving the factory, the driver returns the card at the automatic card receiving machine and automatically prints a weighing slip.

[0033] In a third aspect, an embodiment of the present invention provides a computer device, including a memory and a processor, wherein the memory stores a computer program, wherein: when the computer program is executed by the processor, any step of an automatic weighing method for a concrete mixing station as described in the first aspect of the present invention is implemented.

[0034] In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium having a computer program stored thereon, wherein: when the computer program is executed by a processor, any step of the automatic weighing method for a concrete mixing station according to the first aspect of the present invention is implemented.

[0035] Beneficial effects of the present invention: The present invention realizes full automation of the entire system from information collection to vehicle processing, warehouse allocation, card management and weighing slip printing, which greatly reduces labor costs, reduces the risk of human errors, automatically allocates raw material warehouses, and makes reasonable arrangements according to vehicle types and actual needs, thereby improving warehouse utilization and avoiding waste of resources. Functions such as automatic card issuing machines and warehouse reminders enable them to find unloading warehouses more quickly and accurately, improving work efficiency. The use of cards and automatic printing of weighing slips also make the entire transaction process more convenient and standardized. By adding electronic locks to the warehouses and combining them with the card management system, it can effectively prevent drivers from making wrong materials when unloading, ensuring that each type of raw material can be accurately unloaded into the corresponding warehouse, thereby ensuring the accuracy of the production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0037] Figure 1 This is a flow chart for implementing the present invention in Example 1. DETAILED DESCRIPTION

[0038] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0039] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0040] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0041] Example 1

[0042] Reference Figure 1 , which is the first embodiment of the present invention, provides an automatic weighing method for a concrete mixing station, comprising the following steps:

[0043] S1: Use the concrete ERP system to collect the delivery information of concrete mixer trucks, and use the customer APP or the driver to scan the QR code to collect the delivery information of raw materials.

[0044] Preferably, Figure 1 The implementation process of the present invention is shown as follows. First, the concrete ERP system is used to collect the delivery information of concrete mixer trucks. The customer APP or the driver scans the QR code to collect the delivery information of raw materials. The vehicle is automatically weighed by the scale, and the vehicle license plate is identified and a photo is captured at the same time. The vehicle type is determined by comparing the vehicle license plate with the delivery information. If it is a mixer truck, the delivery information is used to automatically determine whether the mixer truck meets the weight requirements when leaving the factory. When the mixer truck returns to the factory, the amount of remaining material in the vehicle is automatically determined. If it is a raw material vehicle, the system automatically allocates a storage space when the raw material vehicle is weighed, and the storage space information is written into the card. The automatic card issuing machine issues the card to the driver, and reminds the driver of the name of the storage space to unload the material. By adding an electronic lock to the storage space, the driver is prevented from punching the wrong material. When leaving the factory, the driver returns the card to the automatic card receiving machine, and the weighing slip is automatically printed.

[0045] Furthermore, the delivery information includes vehicle information and raw material information.

[0046] Furthermore, the vehicle information includes vehicle model, license plate number, vehicle size and vehicle load capacity.

[0047] Furthermore, the raw material information includes the raw material name, raw material specification and raw material order number.

[0048] Preferably, the concrete ERP system, customer APP and QR code are used to collect delivery information, which improves the accuracy and collection efficiency of the data, breaks the traditional single information collection method, and achieves comprehensive data coverage and real-time update by integrating different information collection channels, providing accurate data basis for subsequent vehicle management, weight determination, warehouse allocation, etc., ensuring the smooth production and logistics process of the entire mixing station.

[0049] S2: By recognizing the license plate and taking a photo at the same time, the vehicle type is determined by comparing the vehicle license plate with the delivery information, and then the weighbridge is called to automatically weigh the vehicle.

[0050] Furthermore, a watermark is automatically added to the photo, and the watermark content includes time, license plate number, scale number and scale weight data.

[0051] Further, the vehicle types include concrete vehicles and raw material vehicles;

[0052] Preferably, accurate vehicle management is achieved through automatic weighing on the scale, license plate recognition and photo capture, combined with delivery information comparison to determine the vehicle type, reducing human errors. Photo capture and watermark addition enhance data traceability, enabling timely and accurate processing of different types of vehicles, thereby improving the operating efficiency of the mixing station.

[0053] Furthermore, the specific formula for the accuracy of vehicle type judgment is:

[0054]

[0055] Among them, A is the accuracy of vehicle type judgment; C is the number of correctly judged vehicles; T is the total number of vehicles; n is the complexity of the system; a and b are the parameter ranges of the system operation time.

[0056] S3: If it is a mixer truck, the delivery information is used to automatically determine whether the mixer truck meets the factory weight requirement, and when the mixer truck returns to the factory, it is automatically determined whether there is any remaining material in the truck and the amount of the remaining material.

[0057] Preferably, the specific steps of automatically determining whether the mixer truck meets the factory weight requirement are:

[0058] Compare the actual weight of the mixer truck obtained by weighing on the scale with the loading capacity required by the order;

[0059] If the actual weight of the mixer truck is within the reasonable range of the loading volume required by the order and historical data, it is determined that the factory weight meets the requirements;

[0060] If the actual weight of the mixer truck is significantly lower than the loading amount required by the order, the mixer truck is considered to be underloaded;

[0061] If the actual weight of the mixer truck is significantly higher than the loading capacity required by the order, the mixer truck is deemed to be overloaded;

[0062] When the judgment result is that the weight meets the requirements, the system records the data normally and the mixer truck can be shipped smoothly;

[0063] When it is determined that there is insufficient or excessive loading, the system will immediately sound an alarm, and the background will automatically remind the dispatcher and the experimenter. The dispatcher will arrange the mixer truck to make adjustments according to the situation, and the experimenter will conduct quality inspection on the concrete that may have problems to ensure that the performance of the concrete is not affected.

[0064] Preferably, the specific steps of automatically determining the amount of residual material in the mixer truck when it returns to the factory are:

[0065] When the mixer truck returns to the factory and passes through the scale again, the scale will automatically weigh and record the total weight of the vehicle at that time;

[0066] Retrieve the tare weight data of the mixer truck and the production data of this delivery task from the concrete ERP system;

[0067] Subtract the tare weight of the truck from the total weight of the truck when it returns to the factory to get the weight of the concrete in the truck.

[0068] According to the type and strength grade of the concrete delivered by the vehicle, the concrete mix density is obtained from the system database. Concrete of different types and strength grades has different density.

[0069] Divide the weight of the remaining concrete in the truck by the bulk density of the concrete to get the volume of the remaining material in the truck;

[0070] The calculated volume of the remaining material in the truck is displayed on the system interface. At the same time, the background automatically reminds the dispatcher and the experimenter so that they can timely understand the status of the mixer truck's return to the factory and the remaining material, and arrange subsequent processing work.

[0071] Preferably, it automatically determines whether the delivery weight of the mixing plant meets the requirements, improves the stability of product quality, and automatically calculates the volume of the remaining material returned to the factory, which helps to optimize the production and transportation plan and reduce waste.

[0072] S4: If it is a raw material vehicle, the system automatically allocates a storage location when the raw material vehicle is weighed, and writes the storage location information into a card. The automatic card issuing machine issues the card to the driver, and reminds the driver at the same time the name of the storage location where the material is to be unloaded.

[0073] Furthermore, the storage location information includes the storage location number, storage location, current storage volume and maximum storage capacity.

[0074] Specifically, the specific steps of the system automatically allocating positions are as follows:

[0075] When a raw material vehicle is listed, the system automatically obtains the vehicle's weight information through the weighbridge and triggers a series of subsequent operations. The system reads the delivery information;

[0076] The system monitors the working status of each production line in real time and analyzes the urgency of each production line's demand for different raw materials;

[0077] The system queries the current inventory status of each warehouse. For some raw materials with special requirements, it is also necessary to consider whether the warehouse can meet their storage needs;

[0078] Conduct a comprehensive analysis based on the types and quantities of raw materials in the delivery information, combined with the production line's operating conditions and the current inventory in the warehouse;

[0079] The allocated storage location information is written into the card, and the automatic card issuing machine sends the card to the driver. At the same time, the driver is reminded of the name of the storage location where the material is to be unloaded through voice and LED text, ensuring that the driver knows the accurate unloading location.

[0080] Furthermore, whether the storage space meets its storage requirements refers to some admixtures that require specific storage conditions.

[0081] Furthermore, the comprehensive analysis includes:

[0082] Priority will be given to allocating warehouses for materials corresponding to the production lines currently in production. If a certain raw material is urgently needed on multiple production lines, priority will be given to warehouses with smaller inventory. If it is not urgently needed, priority will be given to warehouses that are farther away from other material-loading vehicles based on the warehouse location distribution to facilitate the driver's work. If there are multiple warehouses with enough space to store the raw materials, the system will give priority to allocating them to warehouses that are closer to the production lines that are using the raw materials to reduce transportation time and costs.

[0083] For some raw materials with large usage, priority will be given to allocating storage spaces with larger spaces to avoid frequent storage adjustments and loading and unloading operations.

[0084] S5: By adding an electronic lock to the storage space, the driver returns the card to the automatic card receiving machine when leaving the factory, and a weighing slip is automatically printed.

[0085] Preferably, the system automatically allocates storage space, issues card reminders, and prevents wrong materials through electronic locks, reducing human errors and waste of resources, and improving the accuracy and safety of raw material management.

[0086] Optimally, the whole process is more efficient and standardized. The automatic card collection machine facilitates the driver's operation, and the automatic printing of the weighing slip improves the transparency and traceability of the transaction.

[0087] The present embodiment also provides an automatic weighing system for a concrete mixing station, including: a data collection module, which is used to collect delivery information by using an ERP system, a production system, a customer APP or a driver scanning a QR code; a weighing and capturing module, which is used to automatically weigh the vehicle through a floor scale and capture photos while weighing; a weight determination module, which is used to automatically determine whether the weight of the mixer truck meets the requirements when it leaves the factory, and automatically determine the amount of remaining material in the truck when the mixer truck returns to the factory; a bin allocation module, which is used to automatically allocate bins when a raw material vehicle is weighed, and write the bin information into a card, and send the card to the driver through an automatic card issuing machine; a safe material delivery module, which is used to prevent the driver from delivering the wrong material, and to add an electronic lock to the bin. When the driver leaves the factory, he returns the card to the automatic card receiving machine and automatically prints a weighing slip.

[0088] This embodiment also provides a computer device, which is applicable to a method for automatically weighing a concrete mixing station, and includes: a memory and a processor; the memory is used to store computer executable instructions, and the processor is used to execute the computer executable instructions to implement an automatic weighing method for a concrete mixing station as proposed in the above embodiment.

[0089] The computer device may be a terminal, and the computer device includes a processor, a memory, a communication interface, a display screen and an input device connected via a system bus. The processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The communication interface of the computer device is used to communicate with an external terminal in a wired or wireless manner, and the wireless manner can be achieved through WIFI, an operator network, NFC (near field communication) or other technologies. The display screen of the computer device may be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer device may be a touch layer covering the display screen, or a key, trackball or touchpad provided on the housing of the computer device, or an external keyboard, touchpad or mouse, etc.

[0090] This embodiment also provides a storage medium on which a computer program is stored. When the program is executed by a processor, an automatic weighing method for a concrete mixing station as proposed in the above embodiment is implemented; the storage medium can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (Static Random Access Memory, referred to as SRAM), electrically erasable programmable read-only memory (Electrically Erasable Programmable Read-Only Memory, referred to as EEPROM), erasable programmable read-only memory (Erasable Programmable Read Only Memory, referred to as EPROM), programmable read-only memory (Programmable Red-Only Memory, referred to as PROM), read-only memory (Read-Only Memory, referred to as ROM), magnetic storage, flash memory, magnetic disk or optical disk.

[0091] In summary, the present invention realizes full automation of the entire system from information collection to vehicle processing, warehouse allocation, card management and weighing slip printing, which greatly reduces labor costs, reduces the risk of human errors, automatically allocates raw material warehouses, and makes reasonable arrangements according to vehicle types and actual needs, thereby improving warehouse utilization and avoiding waste of resources. Functions such as automatic card issuing machines and warehouse reminders enable them to find unloading warehouses more quickly and accurately, improving work efficiency. The use of cards and automatic printing of weighing slips also make the entire transaction process more convenient and standardized. By adding electronic locks to the warehouses and combining them with the card management system, it can effectively prevent drivers from making wrong materials when unloading, ensuring that each type of raw material can be accurately unloaded into the corresponding warehouse, thereby ensuring the accuracy of the production process.

[0092] Example 2

[0093] Referring to Tables 1 to 4, which are the second embodiment of the present invention, this embodiment is different from the first embodiment in that, in order to verify its beneficial effects, operating data and related instructions of the present invention in an actual environment are provided.

[0094] Table 1 shows the performance difference in information collection efficiency between our invention and the prior art in this example.

[0095] Table 1 Comparison of information collection efficiency

[0096] Compare Projects Traditional method The present invention Concrete mixer truck information collection time (minutes) 12-15 1-2 Concrete mixer truck information error rate 15％ 2％ Raw material information collection time (minutes) 8-10 1-2 Raw material information error rate 12％ 1.5％

[0097] Table 2 shows the comparison between our invention and the prior art in vehicle management in this example.

[0098] Table 2 Vehicle management comparison table

[0099] Compare Projects Traditional method The present invention Vehicle type judgment accuracy 70％ 95％ The factory weight of the mixer truck meets the judgment accuracy 80％ 98％ Error in volume of residual material when the mixer truck returns to the factory (cubic meters) ±2 ±0.5 Calculation time of residual material volume when the mixer truck returns to the factory (minutes) 10-15 0-1

[0100] Table 3 shows the comparison between our invention and the prior art in terms of raw material management in this example.

[0101] Table 3 Comparison of raw material management

[0102] Compare Projects Traditional method The present invention Position allocation error rate 10％ 1％ Effect of preventing wrong material injection (number of errors / month) 5-8 times 0 times Time for raw material vehicles to find the correct storage location (minutes) 8-10 2-3

[0103] As can be seen from the above table, the present invention greatly reduces manual intervention, reduces the risk of human error, automatically allocates raw material storage locations, makes reasonable arrangements based on vehicle types and actual needs, improves storage location utilization, avoids waste of resources, and enables them to find unloading storage locations more quickly and accurately, thereby improving work efficiency.

[0104] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. An automatic weighing method for a concrete mixing station, characterized in that: include: Use the concrete ERP system to collect delivery information of concrete mixer trucks, and use customer APP or drivers to scan QR codes to collect delivery information of raw materials; By recognizing the license plate and taking photos at the same time, the vehicle type is determined by comparing the vehicle license plate with the delivery information, and then the weighbridge is called to automatically weigh the vehicle; If it is a mixer truck, the delivery information is used to automatically determine whether the mixer truck meets the factory weight requirement, and when the mixer truck returns to the factory, it is automatically determined whether there is any remaining material in the truck and the volume of the remaining material; If it is a raw material vehicle, the system automatically allocates a storage location when the raw material vehicle is weighed, and writes the storage location information into a card, which is then issued to the driver by an automatic card issuing machine, while reminding the driver of the storage location where the material is to be unloaded; By adding an electronic lock to the storage space, the driver returns the card to the automatic card receiving machine when leaving the factory, and a weighing slip is automatically printed.

2. The automatic weighing method for a concrete mixing station according to claim 1, characterized in that: The delivery information includes vehicle information and raw material information; The vehicle information includes vehicle model, license plate number, vehicle size and vehicle load capacity; The raw material information includes the raw material name, raw material specification and raw material order number; A watermark is automatically added to the photo, and the watermark content includes time, license plate number, scale number and scale weight data; The types of vehicles include concrete vehicles and raw material vehicles; The storage location information includes storage location number, storage location, current storage volume and maximum storage capacity; The method of reminding the driver of the bin where the material is to be unloaded includes voice and LED text prompts.

3. The automatic weighing method of a concrete mixing station according to claim 2, characterized in that: The specific steps of automatically determining whether the mixer truck's factory weight meets the requirements are as follows: Compare the actual weight of the mixer truck obtained by weighing on the scale with the loading capacity required by the order; If the actual weight of the mixer truck is within the reasonable range of the loading volume required by the order and historical data, it is determined that the factory weight meets the requirements; If the actual weight of the mixer truck is significantly lower than the loading amount required by the order, the mixer truck is considered to be underloaded; If the actual weight of the mixer truck is significantly higher than the loading capacity required by the order, the mixer truck is deemed to be overloaded; When the judgment result is that the weight meets the requirements, the system records the data normally and the mixer truck can be shipped smoothly; When it is determined that there is insufficient or excessive loading, the system will immediately sound an alarm, and the background will automatically remind the dispatcher and the experimenter. The dispatcher will arrange the mixer truck to make adjustments according to the situation, and the experimenter will conduct quality inspection on the concrete that may have problems to ensure that the performance of the concrete is not affected.

4. The automatic weighing method for a concrete mixing station according to claim 3, characterized in that: The specific steps for automatically determining the amount of residual material in the mixer truck when it returns to the factory are: When the mixer truck returns to the factory and passes through the weighbridge, the weighbridge automatically weighs and records the total weight of the vehicle at that time; Retrieve the tare weight data of the mixer truck and the production data of this delivery task from the concrete ERP system; Subtract the tare weight of the mixer truck from its total weight when it returns to the factory to get the total weight of the concrete in the mixer truck. Then calculate the volume of the remaining concrete in the truck based on the specific bulk density of the delivery task. The calculated volume of the remaining material in the truck is displayed on the system interface. At the same time, the background automatically reminds the dispatcher and the experimenter so that they can timely understand the status of the mixer truck's return to the factory and the remaining material, and arrange subsequent processing work.

5. The automatic weighing method for a concrete mixing station according to claim 4, characterized in that: The specific steps of the system's automatic allocation of positions are as follows: When a raw material vehicle is listed, the system automatically obtains the vehicle's weight information through the weighbridge and triggers a series of subsequent operations. The system reads the delivery information; The system monitors the working status of each production line in real time and analyzes the urgency of each production line's demand for different raw materials; The system queries the current inventory status of each warehouse. For some raw materials with special requirements, it is also necessary to consider whether the warehouse can meet their storage needs; Conduct a comprehensive analysis based on the types and quantities of raw materials in the delivery information, combined with the production line's operating conditions and the current inventory in the warehouse; The allocated storage location information is written into the card, and the automatic card issuing machine sends the card to the driver. At the same time, the driver is reminded of the name of the storage location where the material is to be unloaded through voice and LED text, ensuring that the driver knows the accurate unloading location.

6. The automatic weighing method for a concrete mixing station according to claim 5, characterized in that: Whether the storage space meets its storage requirements refers to some admixtures that require specific storage conditions and cement curing time requirements.

7. The automatic weighing method for a concrete mixing station according to claim 5, characterized in that: The comprehensive analysis includes: Prioritize the allocation of warehouses for materials belonging to the production lines in production. If a certain raw material is urgently needed on multiple production lines, warehouses with smaller inventory will be prioritized. If it is not urgently needed, warehouses that are farther away from other material-loading vehicles will be prioritized according to the warehouse location distribution. If there are multiple warehouses with enough space to store the raw material, the system will prioritize the warehouses that are closer to the production line that is using the raw material to reduce transportation time and cost. For some raw materials with large usage, priority will be given to allocating storage spaces with larger spaces to avoid frequent storage adjustments and loading and unloading operations.

8. An automatic weighing system for a concrete mixing station, based on the automatic weighing method for a concrete mixing station according to any one of claims 1 to 7, characterized in that: include, Data collection module, used to collect delivery information using ERP system, production system, customer APP or driver scanning QR code; The weighing and capturing module is used to automatically weigh the vehicle through a floor scale and capture photos while weighing; The weight determination module is used to automatically determine whether the weight of the mixer truck meets the requirements when it leaves the factory, and automatically determine the amount of remaining material in the truck when the mixer truck returns to the factory; The bin allocation module is used to automatically allocate bins when the raw material truck is weighed, write the bin information into a card, and send the card to the driver through an automatic card issuing machine; The safe material punching module is used to prevent the driver from punching the wrong materials. An electronic lock is added to the storage space. When leaving the factory, the driver returns the card to the automatic card receiving machine and the weighing slip is automatically printed.

9. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the automatic weighing method for a concrete mixing station according to any one of claims 1 to 7 are implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the automatic weighing method for a concrete mixing station according to any one of claims 1 to 7 are implemented.

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