Digital indicating scale calibrating device

Abstract

The utility model discloses a digital indicating scale calibrating device, relates to the technical field of metrological calibration equipment, and is used for solving the problem that the efficiency is influenced due to troublesome number input when a digital indicating scale is calibrated. The digital indicating scale calibrating device comprises a bearing platform and a weight box. A digital indication scale placement area, a code scanning area, a weight storage area and a data acquisition and processing system are formed on the bearing table, the code scanning area is located in the digital indication scale placement area, a two-dimensional code or a bar code for scanning is formed on the bottom surface of a digital indication scale to be detected, and the code scanning area is arranged corresponding to the two-dimensional code or the bar code; the weight box is placed in the weight storage area of the bearing table, and weights are placed in the weight box. The code scanning area is matched with the two-dimensional code or the bar code on the bottom surface of the to-be-detected digital indication scale, so that the information of the digital indication scale can be conveniently and quickly input.

Description

Technical Field

[0001] This application relates to the field of metrological verification equipment technology, and in particular to a verification device for a digital indicating scale. Background Technology

[0002] In the current verification of digital indicating scales, there are many problems that affect the efficiency and accuracy of the verification.

[0003] For example, each digital indicating scale needs to have its serial number scanned and processed independently during calibration, and some calibration devices even require manual input of the product number, which greatly reduces calibration efficiency. Utility Model Content

[0004] This application provides a digital indicating scale calibration device to solve the problem of efficiency issues caused by the cumbersome input of serial numbers during the calibration of digital indicating scales.

[0005] This application provides a digital indicating scale calibration device, including a support platform and a weight box; the support platform has a digital indicating scale placement area, a barcode scanning area, a weight storage area, and a data acquisition and processing system. The barcode scanning area is located in the digital indicating scale placement area, and the bottom surface of the digital indicating scale to be tested has a QR code or barcode for scanning. The barcode scanning area is set corresponding to the QR code or barcode. The weight box is placed in the weight storage area of ​​the support platform, and weights are placed in the weight box.

[0006] The digital indicating scale calibration device in this application defines the basic architecture of the device by defining the overall structure and key functional areas of the device. The scanning area is set to correspond with the code on the bottom surface of the digital indicating scale, so that scanning is automatically triggered when the digital indicating scale is placed in place, realizing rapid information entry, simplifying the operation process, improving the starting efficiency of the calibration work, and avoiding the tediousness and errors of manual information entry.

[0007] In some embodiments of this application, the surface of the digital indicating scale placement area is made of a non-slip, wear-resistant material. The non-slip material prevents the digital indicating scale from sliding during placement and calibration, ensuring a fixed measurement position and avoiding measurement errors caused by position changes; the wear-resistant material extends the service life of the placement area, reduces the impact of surface wear on the stability of the digital indicating scale placement and the accuracy of calibration, and ensures the stability and reliability of the calibration work.

[0008] In some embodiments of this application, a scanner is installed in the scanning area to scan the QR code or barcode on the bottom surface of the digital indicating scale. This clarifies the specific implementation of the scanning function. The highly sensitive scanner can quickly and accurately read the encoded information on the bottom surface of the digital indicating scale, converting the physical code into data that can be recognized by the device. This lays the foundation for the subsequent data acquisition and processing system to obtain the digital indicating scale's identity information, achieve automatic data association and recording, and further improve the automation and accuracy of information entry.

[0009] In some embodiments of this application, the data acquisition and processing system is provided with a barcode scanning data acquisition module. The barcode scanning data acquisition module is connected to a scanner and is used to receive, parse, and verify the digital indicating scale identification code information read by the barcode scanner, and transmit the processed data to the main control unit. The main control unit is used to associate and bind the identification code of the digital indicating scale with the verification time, verification personnel, and measurement result data in the verification process, and store them in a database. The main control unit is also connected to a data storage device.

[0010] A complete data acquisition, processing, and storage chain has been established. The barcode scanning data acquisition module parses and verifies the information acquired by the scanner to ensure data accuracy; the main control unit integrates and stores the data, so that the verification data of each digital indicating scale is closely associated with its identity information, facilitating subsequent querying, tracing, and management, providing comprehensive and accurate data support for verification work, and improving data management efficiency and traceability.

[0011] In some embodiments of this application, the weight box includes a detection weight box and a verification weight box, wherein the detection weight box and the verification weight box are respectively provided with detection weights and verification weights, and the detection weight box and the verification weight box are distributed at intervals.

[0012] The design incorporates two sets of weights, which can be used alternately during the verification process. By comparing the verification results of the two sets of weights, problems such as weight errors and equipment malfunctions can be detected in a timely manner. The spaced distribution facilitates the differentiation and use of weights by operators, ensuring the effective operation of the verification mechanism, improving the accuracy of verification results, reducing misjudgments and repeated verification work caused by weight issues, and improving overall verification efficiency.

[0013] In some embodiments of this application, the digital indicating scale calibration device further includes a data cable. Both the support platform and the digital indicating scale are provided with ports for connecting the data cable. The digital indicating scale transmits data to the main control unit in the support platform through the data cable.

[0014] A data transmission channel was established between the digital indicating scale and the main control unit of the device, enabling real-time measurement data and working status information of the digital indicating scale during the verification process to be transmitted to the main control unit in a timely and stable manner. This achieves comprehensive data collection, provides richer data sources for accurately judging the performance and verification results of the digital indicating scale, and enhances the device's monitoring and control capabilities for the digital indicating scale.

[0015] In some embodiments of this application, an identification area is also formed on the support platform for identifying the work magnetic card. Through work magnetic card identification, the operator's identity can be verified and managed. Different magnetic cards correspond to different operation permissions, such as viewing data, performing verification operations, and modifying system parameters. This helps to standardize operating procedures, prevent unauthorized personnel from operating, ensure the security of verification data and the standardization of verification work, and facilitate the recording and traceability of the operator's work. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the technical solution of this utility model and constitute a part of the specification. They are used together with the embodiments of this application to explain the technical solution of this utility model and do not constitute a limitation on the technical solution of this utility model.

[0017] Figure 1 This is a schematic diagram of a digital indicating scale calibration device provided in an embodiment of this application.

[0018] Figure 2 This is a schematic diagram of a digital indicating scale calibration device provided in an embodiment of this application after a digital indicating scale has been placed on it.

[0019] Attached label: 1-Bearing platform; 11-Digital indicating scale placement area; 12-Scanning area; 13-Weight storage area; 14-Identification area; 15-Port; 16-Data wiring; 2-Weight box; 21-Test weight box; 22-Verification weight box; 3-Digital indicating scale; 31-QR code. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0021] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0022] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0023] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "connected" and "linked" should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Furthermore, when describing pipelines, the terms "connected" and "linked" as used in this application have the meaning of establishing electrical connection. The specific meaning needs to be understood in conjunction with the context.

[0024] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0025] In the current verification of digital indicating scales, there are many problems that affect the verification efficiency and accuracy.

[0026] For example, each digital indicating scale needs to have its serial number scanned and processed independently during calibration, and some calibration devices even require manual input of the product number, which greatly reduces calibration efficiency.

[0027] Therefore, please refer to Figure 1 This application provides a digital indicating scale calibration device, including a support platform 1 and a weight box 2.

[0028] Please refer to Figure 1The support platform 1 comprises a digital indicating scale 3 placement area 11, a barcode scanning area 12, a weight storage area 13, and a data acquisition and processing system. The barcode scanning area 12 is located within the digital indicating scale 3 placement area 11. The barcode scanning area 12 coincides with or maintains a fixed offset from the geometric center of the placement area, ensuring that the QR code 31 or barcode on the bottom surface of the digital indicating scale 3 is accurately aligned with the scanner when it is in place. For example, a high-sensitivity linear CCD scanner can be embedded in the surface of the placement area, and the scanning window can be covered with wear-resistant tempered glass with a light transmittance >95% and the ability to withstand pressure ≥1000kg without breakage.

[0029] Please refer to Figure 1 A corresponding triggering structure can be set. For example, a thin-film pressure sensor array can be laid at the bottom of the placement area. When a vertical pressure of ≥50N is detected and the distribution conforms to the contour characteristics of the digital indicating scale 3, the scanning program will start after a delay of 200ms. Alternatively, an infrared beam sensor can be arranged at the edge of the placement area. When an object blocks the light and forms a specific pattern (such as a rectangle), it is determined that the digital indicating scale 3 is in place, and the scanning is triggered.

[0030] The coded information acquired by the scanner is transmitted to the main control unit via the SPI bus at a rate of 1 Mbps, and matched with the built-in digital indicating scale 3 database. If the match is successful, the device's historical verification records, technical parameters, and other data are automatically retrieved to provide basic information for subsequent verification processes.

[0031] Please refer to Figure 2 The bottom surface of the digital indicating scale 3 to be tested has a QR code 31 or barcode for scanning, and the scanning area 12 is set accordingly to the QR code 31 or barcode. A specific QR code 31 or barcode is made on the bottom surface of the digital indicating scale 3 to be tested. These codes contain relevant information about the digital indicating scale 3, such as model, specifications, serial number, and historical calibration record index.

[0032] Meanwhile, a scanning area 12 is set on the carrier platform 1 of the digital indicating scale calibration device. The scanning device is equipped in this area, and its position, angle and other parameters are precisely designed and adjusted to ensure that when the digital indicating scale 3 is placed in the designated position of the carrier platform 1 (the digital indicating scale 3 placement area 11), the scanning device in the scanning area 12 can accurately and quickly read the QR code 31 or barcode information on the bottom surface of the digital indicating scale 3.

[0033] Compared to the traditional method of manually inputting information into digital indicator scales, this method significantly reduces human intervention steps, lowers the probability of information entry errors, and improves the accuracy and efficiency of information entry. Furthermore, the coding can contain rich equipment information, facilitating the device to quickly retrieve relevant parameters and historical data, providing data support for subsequent verification work.

[0034] This method enables rapid information exchange and matching between the digital indicating scale 3 and the verification device, allowing the verification device to automatically adjust the verification process and parameter settings according to the characteristics of the digital indicating scale 3, thus enhancing the device's intelligence and adaptability. Furthermore, by encoding and linking historical verification data, data traceability and management are facilitated, contributing to improved standardization and scientific rigor of the entire verification process.

[0035] Please refer to Figure 1 The weight box 2 is placed in the weight storage area 13 of the support platform 1, and the weight box 2 contains weights. On the support platform 1 of the digital indicating scale calibration device, a specific area is specially designated as the weight storage area 13, which is used to place the weight box 2 that carries the weights.

[0036] The weight box 2, as the container for holding the weights, must be designed to protect the weights and facilitate their access. The weights, serving as the standard measuring instruments for calibrating the digital indicating scale 3, are systematically stored within the weight box 2. This arrangement ensures that the weights have a fixed and orderly storage location within the device, allowing operators to quickly locate the required weights during calibration. Simultaneously, the weight box 2 protects the weights from external environmental factors (such as dust, moisture, and impacts), ensuring the accuracy and performance stability of the weights, thereby guaranteeing the accuracy and reliability of the calibration results.

[0037] Please refer to Figure 1 and Figure 2 The digital indicating scale calibration device in this application defines the basic architecture of the device by defining the overall structure and key functional areas of the device. The scanning area 12 is set to correspond with the bottom code of the digital indicating scale 3, so that scanning is automatically triggered when the digital indicating scale 3 is placed in place, realizing rapid information entry, simplifying the operation process, improving the starting efficiency of the calibration work, and avoiding the tediousness and errors of manual information entry.

[0038] In some examples, the surface of the placement area 11 of the digital indicating scale 3 is made of a non-slip, wear-resistant material. The non-slip material prevents the digital indicating scale 3 from sliding during placement and calibration, ensuring a fixed measurement position and avoiding measurement errors caused by position changes; the wear-resistant material extends the service life of the placement area, reduces the impact of surface wear on the stability of the digital indicating scale 3 and the accuracy of calibration, and ensures the stability and reliability of the calibration work.

[0039] For example, the placement area can use natural or synthetic rubber as the base material, and a rubber pad can be made by molding and laid on the placement area 11 of the digital indicating scale 3. For example, nitrile rubber pads have good wear resistance and anti-slip properties, and their surface can be embossed to form diamond, grid and other patterns to increase the friction with the bottom surface of the digital indicating scale 3.

[0040] During the production process, the rubber raw materials are first mixed evenly in a mixer, and additives such as vulcanizing agents and reinforcing agents are added. Then, the mixture is heated and pressurized in a mold to vulcanize and form the material. After being cut to the appropriate size according to the size of the placement area, it is fixed with strong glue. This effectively prevents the digital indicator scale 3 from sliding due to slight external force during the calibration process, and it is also not easy to wear out after long-term use.

[0041] Alternatively, 304 or 316 stainless steel can be selected, and surface treatment processes can be used to achieve anti-slip and wear-resistant effects. For example, sandblasting can be used, where the stainless steel plate is fixed in sandblasting equipment, and the impact of high-speed sand flow creates a uniformly rough texture on the surface of the steel plate, increasing friction. At the same time, this rough surface can also reduce scratches and improve wear resistance. Etching can also be used to create specific anti-slip patterns, such as stripes or honeycomb patterns, on the surface of stainless steel through chemical corrosion.

[0042] In some examples, a scanner is installed in the scanning area 12 to scan the QR code 31 or barcode on the bottom surface of the digital indicating scale 3. This clarifies the specific implementation of the scanning function. The highly sensitive scanner can quickly and accurately read the encoded information on the bottom surface of the digital indicating scale 3, converting the physical code into data that can be recognized by the device. This lays the foundation for the subsequent data acquisition and processing system to obtain the identity information of the digital indicating scale 3, achieve automatic data association and recording, and further improve the automation and accuracy of information entry.

[0043] For example, the scanner can adopt an industrial-grade flat panel design, with the scanning window embedded in the surface of the stage 1, achieving an IP67 protection rating. For instance, the Honeywell Xenon 1902GHD scanner features a closed aluminum alloy housing, integrating a CMOS image sensor and LED lighting system. The scanning window is covered with 0.5mm thick sapphire glass, offering >97% light transmittance and withstanding impacts from steel balls dropped from a height of 1.5m.

[0044] The scanner can be an image scanner, a laser scanner, or a fixed industrial scanner.

[0045] In some examples, the data acquisition and processing system is equipped with a barcode scanning data acquisition module. The barcode scanning data acquisition module is connected to the scanner and is used to receive, parse, and verify the identification code information of the digital indicating scale 3 read by the barcode scanner, and transmit the processed data to the main control unit. The main control unit is used to associate and bind the identification code of the digital indicating scale 3 with the verification time, verification personnel, and measurement result data in the verification process, and store them in the database. The main control unit is also connected to a data storage device.

[0046] A complete data acquisition, processing, and storage chain has been established. The barcode scanning data acquisition module parses and verifies the information acquired by the scanner to ensure data accuracy; the main control unit integrates and stores the data, so that the verification data of each digital indicating scale 3 is closely associated with its identity information, which facilitates subsequent querying, tracing, and management, provides comprehensive and accurate data support for the verification work, and improves data management efficiency and traceability.

[0047] In some examples, the barcode data acquisition module in the data acquisition and processing system acts as a bridge connecting the scanner and the main control unit. Its core function is to reliably acquire and preliminarily process the identification code information of the digital indicating scale 3. After the scanner reads the QR code 31 or barcode information on the bottom surface of the digital indicating scale 3, it will transmit it to the barcode data acquisition module in the form of an electrical signal or a digital signal.

[0048] This module first receives the signal, then parses the information according to preset encoding rules (such as QRCode, EAN-13, etc.), converting the image signal into recognizable characters, numbers, or symbols. Next, it verifies the parsed data using verification algorithms (such as CRC check, parity check, etc.) to determine whether errors or loss occurred during transmission and parsing, ensuring the accuracy and integrity of the data. Finally, the processed and reliable data is transmitted to the main control unit.

[0049] As the core of the entire system's data processing, the main control unit undertakes the important task of data integration and storage. It receives the identification code information of the digital indicating scale 3 from the barcode data acquisition module and associates and binds this identification code with key data generated during the verification process, such as verification time (accurately recorded to the second level for easy traceability of verification time points), verification personnel (associated through employee ID or identity information), and measurement result data (including indication error, repeatability data, etc.).

[0050] This association and binding creates an organic whole for all relevant information from each verification, facilitating subsequent querying, analysis, and management. After the association is completed, the main control unit stores this data in a database, which can be a structured database such as SQLite or MySQL, storing the verification records of different digital indicating scales 3 in tabular form. Simultaneously, the main control unit connects to data storage devices, such as high-capacity solid-state drives (SSDs) or hard disk drives (HDDs), providing ample storage space for the massive amounts of verification data.

[0051] In some examples, the verification device also includes a power module, a communication module, a display module, a sensor interface module, and a clock module.

[0052] The power supply module adopts a switching power supply design, supporting a wide input voltage range of AC100-240V. Through a transformer step-down, rectification and filtering circuit, and PWM (Pulse Width Modulation) controller, it outputs stable DC5V, DC12V, and DC24V, respectively, to power the scanner, barcode data acquisition module, main control unit, and data storage device. The power supply module features overcurrent, overvoltage, and undervoltage protection functions to ensure the safe operation of electronic equipment under abnormal conditions.

[0053] The communication module integrates multiple communication interface circuits, including RS-232, RS-485, USB, and Ethernet interfaces. The RS-232 and RS-485 interface circuits use dedicated level conversion chips (such as MAX232 and MAX485) to achieve serial communication with the digital indicating scale 3, used for transmitting control commands and receiving measurement data from the scale. The USB interface circuit supports high-speed data transmission, used to connect to external storage devices for data backup or to connect to a printer to print calibration reports. The Ethernet interface circuit uses a network transformer and network control chip (such as W5500) to achieve connection to a local area network or the Internet, supporting remote data transmission and remote control functions, facilitating remote monitoring of the calibration device's operating status and querying calibration data by management personnel.

[0054] The display module uses a TFT-LCD color liquid crystal display with a resolution of 800×480 or higher, and is connected to the main control unit via a driver chip (such as ILI9341). The display module presents the content of the user interface module, including the operation guidance interface, the barcode scanning status display area, and the verification data display. It also supports touchscreen functionality, using a capacitive or resistive touch sensor in conjunction with a touch control chip (such as XPT2046) to enable user interaction with the system, such as selecting verification items and inputting parameters.

[0055] In addition to the interface connecting to the barcode scanning data acquisition module, the sensor interface module also reserves multiple sensor interfaces for connecting other auxiliary sensors. For example, the temperature and humidity sensor interface can connect to a digital temperature and humidity sensor (such as DHT22) to collect temperature and humidity data of the calibration environment in real time and transmit it to the main control unit so that environmental parameters can be noted in the calibration record; the pressure sensor interface can connect to the pressure sensor matrix at the bottom of the placement area to trigger the scanner to work and monitor the placement status of the digital indicating scale 3.

[0056] The clock module uses a real-time clock chip (such as the DS1302) and connects to the main control unit via the SPI communication protocol. The clock module provides accurate timekeeping function, and can maintain timing even when the device is powered off, relying on a backup battery (such as a CR1220 button cell battery) to ensure the accuracy and continuity of each calibration time, providing a reliable time basis for data traceability.

[0057] Please refer to Figure 1 In some examples, the weight box 2 includes a detection weight box 21 and a verification weight box 22, with detection weights and verification weights respectively installed in the detection weight box 21 and the verification weight box 22, and the detection weight box 21 and the verification weight box 22 are distributed at intervals.

[0058] The design incorporates two sets of weights, which can be used alternately during the verification process. By comparing the verification results of the two sets of weights, problems such as weight errors and equipment malfunctions can be detected in a timely manner. The spaced distribution facilitates the differentiation and use of weights by operators, ensuring the effective operation of the verification mechanism, improving the accuracy of verification results, reducing misjudgments and repeated verification work caused by weight issues, and improving overall verification efficiency.

[0059] Please refer to Figure 1 In some examples, the digital indicating scale calibration device also includes a data cable 16. Both the platform 1 and the digital indicating scale 3 are provided with ports 15 for connecting the data cable 16. The digital indicating scale 3 transmits data to the main control unit in the platform 1 through the data cable 16.

[0060] A data transmission channel was established between the digital indicating scale 3 and the main control unit of the device, enabling real-time measurement data and working status information of the digital indicating scale 3 during the verification process to be transmitted to the main control unit in a timely and stable manner. This achieves comprehensive data collection, provides richer data sources for accurately judging the performance and verification results of the digital indicating scale 3, and enhances the device's monitoring and control capabilities for the digital indicating scale 3.

[0061] For example, in the digital indicating scale calibration device, the support platform 1 and the digital indicating scale 3 are respectively equipped with compatible data transmission ports 15, such as common RS-232 serial ports, USB interfaces, Ethernet interfaces, etc. The data cable 16 is equipped with connectors that match the ports 15 at both ends. By connecting the data cable 16 to the corresponding ports 15 of the support platform 1 and the digital indicating scale 3, a physical connection is established.

[0062] When the digital indicating scale 3 generates measurement data (such as weight readings, sensor status information, etc.) during the calibration process, this data is transmitted to the main control unit in the support platform 1 via data cable 16 in the form of electrical or digital signals, according to a specific data transmission protocol (such as Modbus, TCP / IP). After receiving the data, the main control unit parses and processes the data according to the protocol rules, extracting useful information for subsequent calibration analysis and recording.

[0063] Please refer to Figure 1In some examples, an identification area 14 is also formed on the support platform 1, which is used to identify the work magnetic card. Through work magnetic card identification, the identity of the operator can be verified and managed. Different magnetic cards correspond to different operation permissions, such as viewing data, performing verification operations, and modifying system parameters. This helps to standardize operating procedures, prevent unauthorized personnel from operating, ensure the security of verification data and the standardization of verification work, and facilitate the recording and traceability of the operator's work.

[0064] In some examples, a dedicated identification area 14 is provided on the platform 1 of the digital indicating scale calibration device. The identification area 14 has a built-in magnetic card identification module, which mainly consists of a magnetic card reader / writer, signal processing circuitry, and communication interface.

[0065] The magnetic card reader / writer can read the magnetic stripe information on the working magnetic card and convert the magnetic signal into an electrical signal. The signal processing circuit amplifies, filters, and decodes the electrical signal to extract the valid information stored in the magnetic card, such as the operator's identification code and access level. The communication interface is responsible for transmitting the processed information to the device's main control unit. When the operator brings the working magnetic card close to or inserts it into the identification area 14, the magnetic card identification module starts working, completing the identification and information reading of the working magnetic card.

[0066] For example, the verification device provided in this application can be used in the following ways to improve verification efficiency.

[0067] I. Preparatory work.

[0068] Personnel authentication: The operator places the work magnetic card in the identification area 14 of the carrier platform 1. The identification area 14 reads the magnetic card information and transmits it to the main control unit for authentication and permission recognition. If the authentication is successful, the main control unit allows the operator to log in to the system; if the authentication fails, the system issues an error message, prohibits operation, and requires the operator to swipe the card again or contact the administrator.

[0069] Equipment Inspection: Operators check whether the anti-slip and wear-resistant material of the floor in the digital indicating scale 3 placement area 11 is intact, and whether the guardrails or warning signs are normal; confirm that the high-resolution QR code 31 scanner in the barcode scanning area 12 is undamaged and connected normally; check whether the multi-layer drawer-type or shelf-type structure of the weight storage area 13 is stable, whether the commonly used weight sets and verification weight sets are complete, whether the storage location labeling information is clear, and whether the dustproof and moisture-proof facilities are effective; check that the connections of each component of the data acquisition and processing system are normal, that the main control unit, barcode scanning data acquisition module and other equipment are in good operating condition, and that the large-capacity data storage device has sufficient storage space.

[0070] Preparation of digital indicating scale 3: Ensure that the bottom surface of the digital indicating scale 3 to be tested has a clear QR code 31 or barcode affixed or engraved, and that it is free from dirt or obstruction. Connect the digital indicating scale 3 to the data cable 16 port 15 of the support platform 1 correctly through the data cable 16 to ensure unobstructed data transmission.

[0071] II. Information entry.

[0072] Automatic barcode scanning: When the operator places the digital scale 3 stably in the digital scale 3 placement area 11, the scanner's automatic triggering mechanism (such as pressure sensing or optical positioning trigger) is triggered when the digital scale 3 is in place. The barcode scanner in the barcode scanning area 12 automatically starts scanning and reads the barcode 31 or barcode information on the bottom surface of the digital scale 3.

[0073] Data Processing and Transmission: The scanner transmits the read information to the barcode data acquisition module in the form of electrical or digital signals. After receiving the signal, the module parses it according to preset encoding rules and verifies the parsed data using a verification algorithm. If the verification passes, the processed digital indicating scale 3 identification code information is transmitted to the main control unit; if the verification fails, the system displays a barcode failure message in the barcode status display area of ​​the user interface module, requiring the operator to check whether the digital indicating scale 3 code is clear or to reposition the digital indicating scale 3 and perform the barcode scanning operation again.

[0074] Information association: After receiving the identification code information, the main control unit automatically retrieves the historical verification records, technical parameters and other data of the digital indicating scale 3, and preliminarily associates the identification code with the verification time and verification personnel (obtained from the work magnetic card information) in the current verification process.

[0075] III. Verification Procedure.

[0076] Loading Common Weights: Based on the range requirements of the digital indicating scale 3, the calibration process control module prompts the operator to select the appropriate common weights from the weight storage area 13 via the user interface's operation guidance interface. The operator uses a dedicated weight clamp, tray, or other manual operation aids to retrieve the common weights from the designated area and load them onto the digital indicating scale 3 as instructed. After loading, the operator waits for the digital indicating scale 3 to stabilize. Then, the operator clicks the confirmation button on the operation guidance interface. The system then collects the display data of the digital indicating scale 3 through the data acquisition and processing system and records it as the common weight measurement result.

[0077] Verification weight loading: After completing the measurement with common weights, the verification process control module, according to the set verification rules (such as after verifying every 5 digital indicating scales 3 or during key range point verification), prompts the operator on the operation guidance interface to change the verification weights and repeat the measurement. The operator removes the common weights and puts them back in the original weight storage area 13, then selects the corresponding verification weight from the verification weight storage area 13 and loads it onto the digital indicating scale 3. Similarly, after the display stabilizes, the system collects the display data of the digital indicating scale 3 and records it as the verification weight measurement result.

[0078] IV. Data Processing and Result Determination.

[0079] Data association and binding: The main control unit comprehensively associates and binds the measurement results of commonly used weights and the measurement results of verification weights with information such as the identification code of the digital indicating scale 3, the verification time, and the verification personnel to form a complete verification data record.

[0080] Difference Analysis and Result Judgment: The system performs difference analysis on the measurement results of commonly used weights and verification weights, calculates the absolute difference and relative difference, and compares them with preset error thresholds. If the difference between the two sets of measurement results is within the allowable range, and the measurement results meet the accuracy requirements of the digital indicating scale 3, the digital indicating scale 3 is deemed to have passed the verification; if the difference exceeds the range or the measurement results do not meet the requirements, the verification is deemed to have failed. The verification process control module displays the verification results on the operation guidance interface and provides corresponding prompts (such as passing or requiring re-verification / calibration).

[0081] V. Data storage and management.

[0082] Data storage: The main control unit stores the complete calibration data records in the database of a large-capacity data storage device. The database stores the calibration records of different digital indicating scales 3 in tabular form, which facilitates subsequent query and management.

[0083] Data Query and Traceability: Operators or managers can use the data management module to query the historical calibration records of the digital indicating scale 3 by entering the identification code as an index. This includes the time, results, and weight information of each calibration. The system displays the query results in list or chart format for easy data analysis and comparison. In case of abnormal or disputed calibration results, the system can trace the entire data process based on the association between the digital indicating scale 3 identification code and the calibration data. This allows users to view the operational steps, weight usage, environmental parameters, and other information throughout the calibration process, thus pinpointing the cause of the problem.

[0084] Data statistical analysis: The data management module supports data statistical analysis based on the digital indicator scale 3 identification code, time, and calibration personnel, generating various statistical reports, such as statistics on the number of qualified calibrations in different time periods and statistics on the work efficiency of different calibration personnel, providing a basis for quality management and decision-making.

[0085] For example, the digital indicating scale calibration device provided in this application may include both hardware and software.

[0086] The hardware component may include the operating layout and data acquisition and processing system.

[0087] The operating area layout includes a dedicated placement area 11 for digital indicating scales 3. The floor of this area is made of non-slip, wear-resistant material, and protective railings or warning signs are installed around the perimeter to ensure the stability of the digital indicating scales 3 and prevent accidental movement during calibration. A barcode scanning area 12 is located on one side or above the digital indicating scale 3 placement area 11, equipped with a high-resolution QR code scanner 31. This scanner supports various scanning methods, including fixed and handheld scanning, and can quickly and accurately identify specific identification codes on the digital indicating scales 3. The positions of the barcode scanning area 12 and the digital indicating scale 3 placement area 11 are carefully designed so that the scanner automatically triggers scanning when the digital indicating scale 3 is placed in its correct position, automatically recording the information of the digital indicating scale 3. In addition, a dedicated weight storage area 13 is provided, employing a multi-layered drawer or shelf structure. Commonly used weight sets and verification weight sets are placed in different areas, with each storage location labeled with weight specifications, accuracy class, and other information. Dust and moisture protection measures, such as dust covers and desiccants, are also provided to protect the accuracy of the weights. In addition, it is equipped with special weight holders, trays and other manual operation aids to facilitate operators in selecting, loading and removing weights.

[0088] The data acquisition and processing system includes a barcode scanning module connected to a QR code scanner. This module receives the identification code information of the digital indicating scale 3 from the scanner, parses and verifies the identification code data to ensure its accuracy and integrity, and then transmits the processed data to the main control unit. The main control unit can associate and bind the identification code of the digital indicating scale 3 with various data during the verification process, such as verification time, verification personnel, and measurement results, and store them in a database, achieving a one-to-one correspondence between the information of the digital indicating scale 3 and the verification data. Simultaneously, the main control unit is connected to a data storage device using a high-capacity storage medium to store a large amount of verification data and operation records.

[0089] The software aspects can include verification process control, data management functions, and user interface and interaction.

[0090] The calibration process control software has been redesigned to adapt to manual operation. After the operator places the digital indicating scale 3 in the designated area, the system automatically scans the identification code and enters the information. The software interface then prompts the operator to select the appropriate commonly used weights from the weight storage area 13 for loading, based on the calibration items and range requirements. After completing the measurement with the commonly used weights, the system, according to the set verification rules (e.g., after calibrating every 5 digital indicating scales 3), prompts the operator to change the verification weights and repeat the measurement. Throughout the calibration process, the software displays the operation steps and prompts in real time, guiding the operator to complete the calibration work correctly.

[0091] In addition, the software has optimized the barcode scanning trigger mechanism. When the digital indicating scale 3 is placed in the designated area and the sensor signal is triggered, the system automatically starts the QR code scanner 31 for identification. If the scan is successful, the system automatically fills the digital indicating scale 3 information into the corresponding field of the calibration record; if the scan fails, the system displays an error message on the user interface, requiring the operator to check whether the digital indicating scale 3 identification code is clear and whether the scanner is working properly, and provides a backup option for manual information entry.

[0092] The data management function, within the data query and management module, adds a query function indexed by the digital indicating scale 3 identification code. Operators can quickly query the historical calibration records of the digital indicating scale 3 by entering the identification code, including the time, results, and weight information of each calibration. The system displays the query results in list or chart format, facilitating data analysis and comparison. Based on the correlation between the digital indicating scale 3 identification code and calibration data, full-process data traceability is achieved. When abnormal or disputed calibration results occur, managers can trace the entire calibration process of the digital indicating scale 3 using the identification code, including the operator's steps, the status of the weights used, and environmental conditions. Simultaneously, the system supports data statistical analysis based on identification code, time, calibration personnel, and other criteria, generating various statistical reports to provide a basis for quality management and decision-making.

[0093] The user interface features an intuitive operation guide that uses a combination of text and images to illustrate the manual operation process and precautions. During the calibration process, the interface displays the current operation step, completed steps, and remaining steps in real time, along with relevant prompts such as weight selection suggestions and data reading timing, helping operators complete the calibration work smoothly. In addition, a barcode scanning status display area is added, providing real-time feedback on the working status and scanning results of the QR code scanner. When a scan is successful, detailed information about the digital indicating scale 3 is displayed; when a scan fails, the error reason and solution are displayed, allowing operators to handle problems promptly.

[0094] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0095] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A calibration device for a digital indicating scale, characterized in that, include: A support platform is formed on which a digital indicating scale placement area, a barcode scanning area, a weight storage area, and a data acquisition and processing system are formed. The barcode scanning area is located in the digital indicating scale placement area. A QR code or barcode for scanning is formed on the bottom surface of the digital indicating scale to be tested. The barcode scanning area is set corresponding to the QR code or barcode. A weight box is placed in the weight storage area of ​​the support platform, and weights are placed inside the weight box.

2. The digital indicating scale calibration device according to claim 1, characterized in that, The surface of the area where the digital indicating scale is placed is made of a non-slip, wear-resistant material.

3. The digital indicating scale calibration device according to claim 2, characterized in that, The scanning area is equipped with a scanner, which is used to scan the QR code or barcode on the bottom of the digital indicator scale.

4. The digital indicating scale calibration device according to claim 3, characterized in that, The data acquisition and processing system is equipped with a barcode data acquisition module, which is connected to the scanner and is used to receive, parse, and verify the digital indicator scale identification code information read by the barcode scanner, and transmit the processed data to the main control unit. The main control unit is used to associate and bind the identification code of the digital indicating scale with the verification time, verification personnel, and measurement result data during the verification process, and store them in the database. The main control unit is also connected to a data storage device.

5. A digital indicating scale calibration device according to any one of claims 1 to 4, characterized in that, The weight box includes a testing weight box and a verification weight box, each containing a testing weight and a verification weight, and the testing weight box and the verification weight box are spaced apart.

6. A digital indicating scale calibration device according to claim 4, characterized in that, The digital indicating scale calibration device also includes a data cable. Both the support platform and the digital indicating scale are provided with ports for connecting the data cable. The digital indicating scale transmits data to the main control unit inside the support platform through the data cable.

7. A digital indicating scale calibration device according to claim 6, characterized in that, An identification area is also formed on the support platform, which is used to identify the working magnetic card.

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