A portable intelligent weighing and detection system for product net content

Abstract

This utility model discloses a portable intelligent weighing and detection system for net content of goods, relating to the field of weighing and detection technology. It includes an upper chamber and a lower chamber, connected by a hinge. An industrial control tablet computer is embedded in the outer wall of the upper chamber. This utility model achieves overall portability through the hinge connection between the upper and lower chambers and the handle. The industrial control tablet computer, as the core, receives product barcode information obtained by the barcode scanner and weight data from the weighing equipment. Data interaction is achieved through a wireless transmission module, and inspection software is run to complete data processing. A printer can output sampling forms, inspection reports, and other documents on-site. Through the coordinated use of all components, the entire process from data entry to detection, report generation, and printing can be completed on-site, effectively avoiding human error and significantly improving the efficiency, accuracy, and overall quality of the inspection report.

Description

Technical Field

[0001] This utility model relates to the field of weighing and detection technology, and in particular to a portable intelligent weighing and detection system for the net content of goods. Background Technology

[0002] Net content testing is a crucial step in the government's metrological supervision and management of prepackaged goods. It is an important means of supervising whether prepackaged goods produced and sold by enterprises meet the net content requirements, and it is directly related to the protection of consumer rights and the fair and orderly development of the market. As prepackaged goods become the mainstream in the market, higher standards have been set for the metrological inspection of their net content.

[0003] Currently, the testing process of traditional metrology institutions relies on manual labor. This involves a large amount of repetitive work, which consumes human resources and is inefficient. When the number of samples is large and time is tight, relying on visual identification and manual data entry is prone to errors, resulting in poor data accuracy. This leads to a high error rate in weighing and testing and an inability to adapt to new inspection rules, making it difficult to meet the needs of efficient and accurate on-site testing. Utility Model Content

[0004] The purpose of this invention is to address the problems in existing technologies, such as high labor costs and low efficiency due to repetitive work, errors easily occurring when relying on visual identification and manual data entry for large sample quantities and tight deadlines, resulting in poor data accuracy, high error rates in weighing and testing, and incompatibility with new inspection rules, making it difficult to meet the needs of efficient and accurate on-site testing. Therefore, this invention proposes a portable intelligent weighing and testing system for the net content of goods.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a portable intelligent weighing and detection system for net content of goods, comprising an upper box and a lower box, wherein the upper box and the lower box are connected by a hinge, an industrial control tablet computer is embedded in the outer wall of the upper box, a sponge block is fixedly connected to the inner wall of the lower box, a storage groove is provided on the top surface of the sponge block, and a weighing device, a barcode scanner, a printer and a wireless transmission module are arranged in the storage groove of the sponge block, wherein the weighing device, barcode scanner, printer and wireless transmission module are all electrically connected to the industrial control tablet computer, and a handle is rotatably connected to the outer wall of the lower box.

[0006] Preferably, a speaker is embedded in the outer wall of the upper housing, an expansion interface is provided below the speaker, the expansion interface is embedded in the outer wall of the upper housing, and a lithium battery pack is provided inside the upper housing.

[0007] Preferably, both outer walls of the upper housing are rotatably connected to connecting buckles, and the inner walls of the connecting buckles are movably connected to elastic buckles.

[0008] Preferably, both outer walls of the lower housing are fixedly connected with clamping plates, and the connecting buckle is engaged with the clamping plates by elastic buckles.

[0009] Preferably, the wireless transmission module integrates a Bluetooth 4.0 module to enable wireless transmission of weight data.

[0010] Preferably, a sealing strip is fixedly connected to the outer wall of the upper housing.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0012] 1. In this utility model, the hinged connection between the upper and lower housings, along with the handle, achieves overall portability of the device. The industrial control tablet computer serves as the core, receiving product barcode information from the barcode scanner and weight data from the weighing equipment. Data interaction is achieved through the wireless transmission module, and the inspection software is run to complete data processing. The printer can output sampling forms, inspection reports, and other documents on-site. Through the coordinated use of various components, the entire process from data entry to testing, report generation, and printing can be completed on-site, effectively avoiding human error and significantly improving the efficiency, accuracy, and overall quality of the inspection report.

[0013] 2. In this utility model, the snap-fit ​​structure connecting the buckle plate and the card plate, combined with the sealing strip, ensures that the box is firmly closed and has good sealing performance, which can prevent dust and moisture, protect the internal equipment, and the Bluetooth module of the wireless transmission module ensures the stability and low power consumption of wireless transmission of weight data, product information, etc., reduce wiring, and improve operational flexibility. Attached Figure Description

[0014] Figure 1 This utility model provides a schematic diagram of the device structure of a portable intelligent weighing and detection system for net content of goods.

[0015] Figure 2 This utility model provides a rear view structural diagram of a portable intelligent weighing and detection system for net content of goods.

[0016] Figure 3 This utility model provides a general flowchart of a portable intelligent weighing and detection system for net content of goods;

[0017] Figure 4 This utility model proposes a flowchart of a determination test method for a portable intelligent weighing and detection system for net content of goods;

[0018] Figure 5 The present invention proposes a tare weight testing method for a portable intelligent weighing and detection system for net content of goods, 1. Flowchart of the method;

[0019] Figure 6The present invention proposes a tare weight testing method for a portable intelligent weighing and detection system for net content of goods. Flowchart 2.

[0020] Legend: 1. Upper housing; 11. Industrial control panel PC; 12. Speaker; 13. Expansion interface; 14. Sealing strip; 15. Connecting buckle plate; 16. Elastic buckle; 2. Lower housing; 21. Sponge block; 22. Card plate; 3. Handle; 4. Weighing equipment; 5. Barcode scanner; 6. Printer; 7. Wireless transmission module. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0023] Example 1: As Figure 1 - Figure 6 As shown, this utility model provides a portable intelligent weighing and detection system for net content of goods, including an upper box 1 and a lower box 2. The upper box 1 and the lower box 2 are connected by a hinge. An industrial control tablet computer 11 is embedded in the outer wall of the upper box 1. A sponge block 21 is fixedly connected to the inner wall of the lower box 2. A storage slot is opened on the top surface of the sponge block 21. A weighing device 4, a barcode scanner 5, a printer 6 and a wireless transmission module 7 are arranged in the storage slot of the sponge block 21. The weighing device 4, the barcode scanner 5, the printer 6 and the wireless transmission module 7 are all electrically connected to the industrial control tablet computer 11. A handle 3 is rotatably connected to the outer wall of the lower box 2.

[0024] Among them, the weighing device 4 has a built-in single-point strain gauge sensor with a range of 40kg. The upper and lower weighing frames are made of aluminum die-casting process, which takes into account both strength and light weight. The internal integrated weight signal acquisition board is a 32-bit ARM chip such as ARM7TDMI-S core, 512KB flash + 32KB SRAM, with a maximum operating speed of 72MHz. It is equipped with a 24-bit Δ-Σ type analog / digital converter with charge balance technology, programmable gain of 1 to 32 times, and Kalman filter algorithm, which can filter out interference such as mechanical vibration and wind on site to ensure the accuracy of weighing data.

[0025] The industrial control tablet PC 11 comes pre-installed with a product net content measurement and inspection software using a B / S architecture. The front-end uses ReactJS + AntDesign Pro, the back-end uses SpringBoot, and the database is PostgreSQL. It supports communication with hardware such as weighing devices 4 and barcode scanners 5 via CefSharp embedding the Chromium kernel. It can perform functions such as user management, inspected unit management, inspection method selection, and automatic tare weight determination. The automatic tare weight determination is based on the attached... Figure 3 - Appendix Figure 6 process;

[0026] The specific settings and functions of this embodiment are described in detail below. The hinge connection between the upper box 1 and the lower box 2, along with the handle 3, enables the overall portability of the device, making it easy for testing personnel to carry to sampling sites such as enterprise warehouses and sales stores. The storage slot of the sponge block 21 can fix the weighing equipment 4, barcode scanner 5, and other components, preventing damage to the equipment due to vibration during transportation or movement. The industrial control tablet computer 11 serves as the core, receiving the product barcode information obtained by the barcode scanner 5 and the weight data of the weighing equipment 4. It achieves data interaction through the wireless transmission module 7 and runs the inspection software to complete data processing. The printer 6 can output documents such as sampling forms and inspection reports on-site, realizing the entire process of operation from data entry to testing, report generation, and printing on-site.

[0027] Example 2: Figure 1 - Figure 6 As shown, a speaker 12 is embedded in the outer wall of the upper housing 1, and an expansion interface 13 is provided below the speaker 12. The expansion interface 13 is embedded in the outer wall of the upper housing 1. A lithium battery pack is installed inside the upper housing 1. Connecting buckles 15 are rotatably connected to both outer walls of the upper housing 1. Elastic buckles 16 are movably connected to the inner side wall of the connecting buckles 15. Card plates 22 are fixedly connected to both outer walls of the lower housing 2. The connecting buckles 15 are engaged with the card plates 22 by the elastic buckles 16. The wireless transmission module 7 integrates a Bluetooth 4.0 module to realize wireless transmission of weight data. A sealing strip 14 is fixedly connected to the outer wall of the upper housing 1.

[0028] The overall implementation achieves the following effects: the speaker 12 provides operation prompts, such as successful barcode scanning and weighing completion, improving the convenience of human-computer interaction; the expansion interface 13 supports external USB flash drives, monitors, and other devices, enhancing system expandability and meeting personalized needs such as data export and screen expansion; the lithium battery pack inside the upper housing 1 eliminates the dependence on on-site AC power, adapting to power-free scenarios; and with the power supply socket on the expansion interface 13, when AC power is plugged in, the power adapter will charge the built-in battery of the industrial control computer and the external lithium battery pack. The external lithium battery pack simultaneously powers the weight acquisition board; the snap-fit ​​structure connecting the buckle plate 15 and the card plate 22, along with the sealing strip 14, ensures that the housing is firmly closed and well-sealed, preventing dust and moisture and protecting the internal equipment; and the Bluetooth 4.0 module of the wireless transmission module 7 ensures the stability and low power consumption of wireless transmission of weight data and product information, reducing wiring and improving operational flexibility.

[0029] The usage and working principle of this device are as follows: Take the device to the sampling site, and open the upper box 1 and lower box 2 by releasing the connection between the connecting plate 15 and the clamping plate 22. Take the barcode scanner 5 from the storage slot of the sponge block 21 in the lower box 2, scan the barcode on the outer packaging of the product, and the barcode information is transmitted to the industrial control tablet computer 11 via the wireless transmission module 7. The tablet computer connects to the network, queries, and automatically enters information such as the product name and manufacturer. Place the product on the weighing device 4, and the weighing data is transmitted in real time to the industrial control tablet computer 11 via the Bluetooth 4.0 module of the wireless transmission module 7. The software automatically records the total weight. The weighing and tare weight are measured. The industrial control tablet PC 11 runs the inspection software, which automatically calculates the sampling number and judges the tare weight according to the JJF1070-2023 rule. If the sample size is ≥25, it is processed according to method 1; if it is ≤24, it is processed according to method 2. The data is analyzed and the inspection conclusion is generated. The software automatically generates the sampling form, original record and inspection report, which are printed on-site by printer 6. After the operation is completed, the weighing equipment 4, barcode scanner 5, etc. are returned to the storage slot of the sponge block 21, the upper box 1 and the lower box 2 are closed, and the upper box 1 and the lower box 2 are fixed by the connecting buckle plate 15 and the card plate 22. The speaker 12 indicates that the operation is over.

[0030] This device focuses on hardware integration and software automation. The industrial control tablet PC 11 in the upper housing 1 serves as the central hub, coordinating with the weighing device 4 in the lower housing 2 to collect weight data, the barcode scanner 5 to acquire product information, the wireless transmission module 7 to transmit data, and the printer 6, among other hardware. Combined with inspection software based on a B / S architecture, it achieves full automation from product information entry and weight collection to data processing and report generation. The lithium battery pack and wireless communication technology inside the upper housing 1 ensure the device's portability and on-site independence. Sealing strips 14 and sponge blocks 21 ensure stable operation of the equipment in mobile and complex environments, ultimately achieving efficient and accurate on-site detection of product net content.

[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A portable commodity net content intelligent weighing detection system, characterized in that: The device includes an upper box (1) and a lower box (2), which are connected by a hinge. An industrial control tablet computer (11) is embedded in the outer wall of the upper box (1), and a sponge block (21) is fixedly connected to the inner wall of the lower box (2). A storage slot is provided on the top surface of the sponge block (21), and a weighing device (4), a barcode scanner (5), a printer (6), and a wireless transmission module (7) are provided in the storage slot of the sponge block (21). The weighing device (4), the barcode scanner (5), the printer (6), and the wireless transmission module (7) are all electrically connected to the industrial control tablet computer (11). A handle (3) is rotatably connected to the outer wall of the lower box (2).

2. The portable commodity net content intelligent weighing detection system according to claim 1, characterized in that: A speaker (12) is embedded in the outer wall of the upper housing (1), and an expansion interface (13) is provided below the speaker (12). The expansion interface (13) is embedded in the outer wall of the upper housing (1), and a lithium battery pack is provided inside the upper housing (1).

3. The portable commodity net content intelligent weighing detection system according to claim 1, characterized in that: Both sides of the upper box (1) are rotatably connected with connecting buckles (15), and the inner side of the connecting buckles (15) is movably connected with elastic buckles (16).

4. The portable commodity net content intelligent weighing detection system according to claim 3, characterized in that: Both sides of the lower box (2) are fixedly connected with a card plate (22), and the connecting buckle plate (15) is snapped into the card plate (22) by an elastic buckle (16).

5. The portable commodity net content intelligent weighing detection system according to claim 1, characterized in that: The wireless transmission module (7) integrates a Bluetooth 4.0 module to realize wireless transmission of weight data.

6. The portable commodity net content intelligent weighing detection system according to claim 1, characterized in that: A sealing strip (14) is fixedly connected to the outer wall of the upper box (1).

Images