Small digital display detection system for combined type vacuum gauge

Abstract

The invention provides a small digital display detection system for a composite vacuum gauge, and the system comprises a level conversion module which is connected with the composite vacuum gauge through a DB15 universal interface, and converts a 5V power supply provided by a lithium battery into 24V and 3.3 V, so as to meet the power supply demands of the composite vacuum gauge and the system; the signal acquisition and processing module is used for acquiring a voltage signal transmitted back by the combined type vacuum gauge and calculating and processing the voltage signal to obtain a currently detected vacuum degree value; the display module is used for displaying the vacuum degree value and supporting switching of display modes; the data storage module is used for storing the vacuum degree numerical value; the unit conversion module is used for mutually converting the vacuum degree numerical values among Torr, Bar and Pa units; and the data transmission module is used for transmitting the vacuum degree numerical value to an upper computer through the USB interface. According to the invention, the problems of difficult measurement and detection of the vacuum gauge caused by narrow space of a production environment and power supply of the vacuum gauge in detection can be solved, and daily vacuum measurement regular detection requirements are met.

Description

Technical Field

[0001] The present application relates to the technical field of vacuum degree detection of vacuum chambers, and in particular to a small digital display detection system for a composite vacuum gauge. Background Art

[0002] The composite vacuum gauge (such as the combination of Pirani gauge and cold / hot cathode gauge) is an important device for vacuum chamber vacuum detection. It is widely used in semiconductor manufacturing and packaging testing, thin film material development and surface science. It can detect low, medium and high vacuum environments (range 1×10 -7 To ensure that the equipment operates under appropriate vacuum conditions, the vacuum pressure can be monitored in real time (up to 760Torr).

[0003] The vacuum system usually consists of a vacuum pump, a vacuum chamber and a vacuum gauge. In order to meet the detection requirements of the vacuum environment in industrial production, the vacuum gauge needs to have high accuracy, real-time performance and reliability. However, in practical applications, the use of composite vacuum gauges still has the following main problems:

[0004] (1) Compound vacuum gauges usually rely on external power supply, but in some industrial environments, due to narrow space or limited power supply conditions, bulky power supply detection systems are often difficult to use. This limitation makes the demand for portable and compact detection equipment more prominent.

[0005] (2) The composite vacuum gauge is usually directly connected to the vacuum chamber. Since the detection of the vacuum gauge depends on the vacuum environment, the vacuum gauge cannot be replaced or calibrated when the vacuum chamber is in a vacuum state, and the disassembly operation can only be completed when the vacuum chamber returns to atmospheric pressure. This not only leads to a decrease in production efficiency, but also limits the daily detection and maintenance of the vacuum gauge.

[0006] (3) Although traditional large-scale detection equipment is powerful, it is often difficult to deploy conveniently in complex production environments. At the same time, the size and weight of the equipment affect its flexibility of use and is not suitable for scenarios that require rapid installation and real-time detection. Summary of the invention

[0007] The present application aims to solve one of the technical problems in the related art at least to some extent.

[0008] To this end, the purpose of the present application is to propose a small digital display detection system for a composite vacuum gauge.

[0009] To achieve the above-mentioned purpose, the embodiment of the present application proposes a small digital display detection system for a composite vacuum gauge, comprising:

[0010] A level conversion module, used to connect the composite vacuum gauge via a DB15 universal interface and convert the 5V power provided by the lithium battery into 24V and 3.3V to meet the power supply requirements of the composite vacuum gauge and the system;

[0011] The signal acquisition and processing module is used to acquire the voltage signal sent back by the composite vacuum gauge, and perform calculation and processing to obtain the current vacuum value;

[0012] A display module, used to display the vacuum value and support switching of display modes;

[0013] A data storage module, used for storing the vacuum degree value;

[0014] A unit conversion module, used to convert the vacuum value between Torr, Bar and Pa units;

[0015] The data transmission module is used to transmit the vacuum degree value to the host computer through the USB interface.

[0016] Optionally, the level conversion module supports the power supply requirements of various types of composite vacuum gauges.

[0017] Optionally, the signal acquisition and processing module further includes:

[0018] A sampling unit, used for collecting the voltage signal transmitted back by the composite vacuum gauge;

[0019] An error correction unit, used for performing error correction on the collected voltage signal using a built-in algorithm;

[0020] The model matching unit is used to select the corresponding calculation model according to the characteristic parameters of different types of composite vacuum gauges to calculate the voltage signal after error correction to obtain the current detected vacuum value.

[0021] Optionally, the display module further includes:

[0022] A multi-mode display unit, used to switch the display mode of the display screen, wherein the display mode includes a real-time display mode, a historical record display mode and a trend graph display mode;

[0023] The environment adaptation unit is used to automatically adjust the background light intensity of the display screen according to the ambient brightness to adapt to different operating environments.

[0024] Optionally, the data storage module includes:

[0025] A recording unit, used to automatically record the vacuum value of each test and its corresponding timestamp;

[0026] The comparison unit is used to compare and analyze the vacuum values ​​detected by multiple vacuum gauges or the same vacuum gauge at different times.

[0027] Optionally, the data storage module further includes:

[0028] A trend analysis unit, used to analyze the changing trend of the pressure in the vacuum chamber based on the recorded detection data;

[0029] The data export unit is used to export the recorded test data to an external device in a standardized format.

[0030] Optionally, the data transmission module supports a real-time data transmission protocol, can send the vacuum degree value to a host computer with low latency, and supports two-way data communication.

[0031] Optionally, the data transmission module further includes:

[0032] A wireless transmission unit, used to realize remote transmission of the vacuum value through a Wi-Fi or Bluetooth interface and support remote operation of a host computer;

[0033] The encryption transmission unit is used to encrypt the transmitted vacuum degree value to ensure the security of the vacuum degree value during transmission.

[0034] Optionally, also include:

[0035] A self-check module, used to automatically detect the operating status of the level conversion module, the signal acquisition and processing module and the display module when the system is started, and provide a fault prompt;

[0036] A calibration module, used for calibrating the voltage of the composite vacuum gauge before detection;

[0037] An alarm module is used to remind the user through sound and light signals and automatically record abnormal data when the vacuum value exceeds a set threshold during the detection process;

[0038] User-defined module, used to set alarm thresholds, data logging frequency and display unit default settings according to user needs.

[0039] Optionally, also include:

[0040] An energy-saving management module, used to automatically enter a low-power consumption mode when the system is idle for a set period of time, and wake up when receiving an external command;

[0041] The battery monitoring module is used to monitor the remaining power of the lithium battery in real time and prompt the user to charge.

[0042] The technical solution provided by the embodiments of the present application brings at least the following beneficial effects:

[0043] (1) This application is powered by a lithium battery and generates a variety of voltages suitable for the composite vacuum gauge through a level conversion module, which gets rid of the traditional power supply detection system's dependence on an external power supply, significantly improves the portability of the device, and is suitable for production environments with limited space.

[0044] (2) The present application integrates a signal acquisition and processing module, which can perform high-precision acquisition and error correction of the voltage signal sent back by the composite vacuum gauge. At the same time, it combines the characteristic parameter matching calculation model of different types of vacuum gauges to achieve compatible support for multiple composite vacuum gauges, thereby improving the accuracy and applicability of detection.

[0045] (3) Through the 1.8-inch LCD display module, the system can display the current vacuum value in real time. It also supports unit conversion and can flexibly switch between multiple units such as Torr, Bar and Pa to meet the needs of different users.

[0046] (4) The data storage module provides automatic recording and comparative analysis functions. It can record the vacuum value and timestamp of each test, and compare and analyze the test results of multiple vacuum gauges or the same vacuum gauge at different times. It can also perform trend analysis based on historical data to provide support for status monitoring and fault diagnosis of the vacuum system.

[0047] (5) The data transmission module transmits the detection data to the host computer through the USB interface and supports two-way communication, realizing remote management and real-time sharing of data, thereby improving the operating efficiency and information level of the system.

[0048] (6) The device is designed to be small, with an overall size of only 65*65*28mm. It is light and easy to carry, especially suitable for narrow production environments or mobile inspection scenarios. At the same time, the system has self-checking and energy-saving management functions. It can self-check the operating status of each module when the device is started, and enter low-power mode when idle, extending the battery life, further improving the practicality and stability of the device.

[0049] To sum up, the digital display detection system provided in this application not only solves the problems of power supply dependence and difficulty in disassembly of traditional composite vacuum gauges, but also has the significant advantages of portability, high efficiency, and multi-functional integration, and can be widely used in various scenarios such as industrial production and scientific research experiments.

[0050] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0052] Figure 1 A schematic structural diagram of a small digital display detection system for a composite vacuum gauge provided in an embodiment of the present application. DETAILED DESCRIPTION

[0053] Embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0054] In response to the problems existing in the prior art, an embodiment of the present application provides a small digital display detection system for a compound vacuum gauge, which is used for power supply and digital display detection of the compound vacuum gauge. Its size is only about 65*65*28mm, and it is powered by an external lithium battery. It can be used for power supply, digital display and regular detection of vacuum gauges for instruments in narrow production environments.

[0055] Figure 1 This is a schematic diagram of the structure of a small digital display detection system for a composite vacuum gauge provided in an embodiment of the present application. Figure 1 As shown, the system includes a level conversion module 1, a signal acquisition and processing module 2, a display module 3, a data storage module 4, a unit conversion module 5 and a data transmission module 6.

[0056] In the embodiment of the present application, the level conversion module 1 is a key component for realizing the power supply of the composite vacuum gauge and the digital display detection system, and has multiple functions and advantages. Its design is optimized from multiple aspects such as compatibility, portability and practicality.

[0057] First, the level conversion module 1 is connected to the composite vacuum gauge through the DB15 universal interface to provide stable power support for the device. With the lithium battery as the basic power input, the module can convert the 5V DC power supply into two voltage outputs of 24V and 3.3V to simultaneously meet the operating requirements of the composite vacuum gauge and the digital display detection system. This multi-voltage conversion capability provides the possibility of supporting composite vacuum gauges of multiple models and different voltage requirements, thereby enhancing the compatibility and adaptability of the device.

[0058] Secondly, the level conversion module 1 is optimized for the actual use scenarios of the composite vacuum gauge, solving the limitations of traditional power supply methods. In industrial production and experimental environments, equipment is often required to perform detection in a small space or away from a fixed power source. Traditional power supply detection systems rely on external power supplies, which not only increases the complexity of deployment, but also limits the mobility of detection equipment. The level conversion module 1 in this application is powered by a built-in lithium battery, which completely gets rid of the dependence on external power supply, making the device highly portable, especially in application scenarios with narrow production environments or requiring rapid response. This design is particularly important.

[0059] Thirdly, the level conversion module 1 also takes into account the use requirements of multiple types of composite vacuum gauges. Different types of composite vacuum gauges may have different voltage requirements, and the level conversion module 1 can flexibly generate two voltages, 24V and 3.3V, to ensure that the power supply requirements of the currently widely used composite vacuum gauges are met. This adaptability reduces compatibility issues caused by differences in device models and increases the applicability of the system in actual operations.

[0060] In addition, the design of the level conversion module 1 also takes into account the stability and reliability of the equipment operation. The level conversion module 1 not only provides accurate voltage output, but also has anti-interference ability to ensure stable operation in complex industrial electromagnetic environments. At the same time, the efficiency optimization design of the module also makes the lithium battery last longer, thereby increasing the use time of the equipment and reducing the need for frequent charging.

[0061] In summary, the level conversion module 1 in the embodiment of the present application not only solves the shortcomings of the traditional composite vacuum gauge power supply method by integrating functions such as multi-voltage conversion, lithium battery power supply and multi-model adaptation, but also significantly improves the portability, compatibility and practicality of the device.

[0062] In the embodiment of the present application, the signal acquisition and processing module 2 is the core functional module for realizing precise vacuum degree detection of the composite vacuum gauge. Its design covers key links such as signal acquisition, error correction and model matching to ensure the accuracy and reliability of the detection results.

[0063] First, the signal acquisition and processing module 2 uses the sampling unit to collect the voltage signal sent back by the composite vacuum gauge with high precision. The sampling unit uses high-resolution analog acquisition technology with a resolution of up to 0.001V, which can accurately capture the voltage changes of the vacuum gauge under different pressure conditions. This high-precision acquisition capability provides a reliable foundation for subsequent signal processing and vacuum degree calculation.

[0064] Secondly, the error correction unit of the signal acquisition and processing module 2 uses advanced algorithms to perform real-time error correction on the collected voltage signal. In practical applications, the voltage signal of the composite vacuum gauge may be affected by temperature changes, environmental interference or the characteristics of the device itself, resulting in errors. This unit can eliminate these influencing factors through the built-in dynamic correction algorithm to ensure the purity and accuracy of the signal. The introduction of error correction not only improves the credibility of the signal, but also reduces the deviation in the detection, providing high-quality input data for subsequent calculations.

[0065] In addition, in order to adapt to various types of composite vacuum gauges, the signal acquisition and processing module 2 is also equipped with a model matching unit. Different types of vacuum gauges may have different calculation requirements for the characteristic parameters of the signal due to differences in their structures and design features. The model matching unit can automatically select the optimal calculation model according to the model of the vacuum gauge, and convert the error-corrected voltage signal into the corresponding vacuum value. This highly targeted model matching function ensures the compatibility and adaptability of the module to various composite vacuum gauges, while ensuring the accuracy of the test results.

[0066] In general, the signal acquisition and processing module 2 in this application forms a complete signal processing link through the collaborative work of sampling, error correction and model matching. This module not only achieves high-precision vacuum degree measurement, but also has the advantage of multi-model compatibility. It can be widely used in semiconductor manufacturing, material research, vacuum experiments and other fields, providing reliable detection support for complex industrial and scientific research scenarios.

[0067] In the embodiment of the present application, the display module 3 is the core component for the user to interact with the digital display detection system. The display module 3 is equipped with a 1.8-inch LCD display and is designed to integrate multi-mode display and environmental adaptation functions to enhance the flexibility of data visualization and user experience.

[0068] It can be understood that the basic function of the display module is to display the current vacuum value detected in real time, ensuring that the user can obtain the test results clearly and intuitively. In order to meet the operation requirements in different scenarios, the module further integrates a multi-mode display unit, through which the user can freely switch between the following three display modes:

[0069] (1) Real-time display mode

[0070] This mode displays the current vacuum value in real-time updates. It is suitable for scenarios where real-time monitoring of vacuum environment changes is required to ensure the timeliness and intuitiveness of the test results.

[0071] (2) History display mode

[0072] This mode is used to display the detection history stored in the system. Users can view the detection data at a specified time point to facilitate traceability analysis and equipment performance evaluation.

[0073] (3) Trend graph display mode

[0074] This mode presents historical detection data in the form of trend graphs, helping users understand the changes in the vacuum environment over time. Trend graph display is particularly suitable for application scenarios that require analysis of vacuum chamber pressure change trends, such as production process monitoring and equipment status diagnosis.

[0075] In addition, the display module 3 is also equipped with an environmental adaptation unit, which is used to automatically adjust the background light intensity of the display screen according to the brightness of the operating environment. Through the light sensor, the system can detect changes in ambient brightness in real time and dynamically adjust the screen brightness so that the displayed content can be clearly seen in strong light or dark light environments. This function significantly improves the usability of the display module 3 under various light conditions, and is particularly suitable for working environments with complex light such as industrial workshops and laboratories.

[0076] In summary, the display module 3 in the embodiment of the present application not only meets the diverse operation requirements through multi-mode display and environmental adaptation functions, but also greatly improves the data visualization capability and user experience. This design enables the system to adapt to different operation scenarios and environmental conditions, providing users with flexible and convenient operation support.

[0077] In the embodiment of the present application, the data storage module 4 is an important component for realizing the management and analysis of vacuum degree detection data. Its design covers data recording, comparative analysis, trend analysis and data export functions, providing comprehensive support for the operation monitoring and performance optimization of the vacuum system.

[0078] Specifically, the core functions of the data storage module are implemented by the following units:

[0079] (1) Recording unit

[0080] The recording unit is used to automatically record the vacuum value of each test and its corresponding timestamp. Each test result is accurately stored to ensure that users can fully trace the test process and understand the working history of the vacuum system. This function is particularly important in long-term operation monitoring, which can help users discover the changing patterns or abnormal trends of the vacuum environment.

[0081] (2) Comparison unit

[0082] The comparison unit is used to realize multi-dimensional comparative analysis of the test data. Specifically, it includes horizontal comparison of the test results of multiple composite vacuum gauges, analysis of the test accuracy and consistency of different devices under the same vacuum environment; and vertical comparison of the test data of the same vacuum gauge at different times, to help users monitor the pressure changes of the vacuum chamber during operation.

[0083] This function is of great significance for evaluating the stability of the vacuum system and the performance of the equipment.

[0084] (3) Trend analysis unit

[0085] The trend analysis unit generates a trend chart of the vacuum chamber pressure over time based on the recorded historical detection data. This visual data analysis method can intuitively present the law of pressure changes and provide support for users to predict the status of the vacuum system. For example, users can use the trend chart to identify possible pressure leaks or equipment failures in advance and take preventive measures.

[0086] (4) Data export unit

[0087] The data export unit is used to export the recorded test data to an external device in a standardized format (such as CSV, TXT or JSON). With this function, users can easily import the test data into a host computer, database or other analysis tools for further processing and archiving. This data sharing method enhances the openness of the system and facilitates integration with other devices or systems.

[0088] Through the above functions, the data storage module 4 not only realizes the comprehensive recording and management of vacuum degree detection data, but also provides users with powerful data analysis and sharing capabilities. This module is suitable for scenarios that require long-term monitoring, trend analysis and multi-device comparison, such as vacuum system status monitoring, equipment performance verification and experimental data management, which significantly improves the practicality and intelligence level of the vacuum gauge detection system.

[0089] In the embodiment of the present application, the unit conversion module 5 is used to realize the flexible switching of the vacuum value between different pressure units, and is an important functional module that can adapt to the diversified application requirements.

[0090] Specifically, the main function of the unit conversion module 5 is to convert the vacuum value between three commonly used pressure units: Torr, Bar, and Pa according to user needs. This design fully considers the preference for pressure units in different fields and scenarios. For example, Torr is often used as a standard unit in the semiconductor manufacturing field, while Pa or Bar may be preferred to represent pressure in laboratories and scientific research scenarios. Through the unit conversion function of this module, users can choose the most suitable unit display method according to their needs.

[0091] Moreover, the core algorithm of the unit conversion module 5 can accurately convert the values, ensuring that the vacuum value after the unit conversion is accurate. For example, for a vacuum value with a detection value of one unit, the unit conversion module 5 can quickly calculate the corresponding other unit values ​​according to the preset proportional formula and update them on the display screen in real time. The module has a fast response speed and high accuracy, ensuring the real-time and reliability of the conversion process.

[0092] In addition, the unit conversion module 5 is seamlessly integrated with the display module 3, and the user can quickly set the pressure unit to be displayed through the interface. The switching operation is simple and intuitive, and no additional configuration or complex settings are required. This humanized interaction method further improves the convenience of system operation.

[0093] In general, the unit conversion module 5 in this application not only meets the usage requirements in various scenarios through high-precision numerical conversion capabilities and convenient user interaction design, but also enhances the flexibility and applicability of the system. This module is particularly suitable for application scenarios that require switching between different unit systems, such as international cooperation projects, cross-domain experiments, and diversified equipment management, providing users with an efficient and reliable unit conversion solution.

[0094] In the embodiment of the present application, the data transmission module 6 is an important component for realizing efficient transmission and safe management of vacuum degree values. Its design integrates multiple communication methods and data protection functions to meet the data transmission requirements in different scenarios.

[0095] First, the data transmission module 6 realizes a wired connection with the host computer through a USB interface. Using the real-time data transmission protocol, the module can quickly transmit the vacuum value to the host computer with low latency to ensure the real-time nature of the test results. At the same time, the USB interface also supports two-way communication. The host computer can not only receive the test data, but also send instructions for system control, such as parameter adjustment or calibration operations. This two-way communication capability improves the interactivity and ease of operation of the system, and is suitable for scenarios that require real-time monitoring.

[0096] Secondly, in order to meet the needs of remote operation and mobile application, the data transmission module 6 is equipped with a wireless transmission unit. This unit supports Wi-Fi and Bluetooth communication methods, enabling users to receive detection data through wireless networks or Bluetooth devices, realizing remote transmission and monitoring functions. In addition, the system also supports the remote operation capability of the host computer, and the host computer can directly control the system through wireless connection, further enhancing the flexibility and applicability of the equipment.

[0097] In addition, the encryption transmission unit built into the data transmission module 6 performs real-time encryption processing on the vacuum value, effectively preventing the data from being stolen or tampered with during the transmission process. The encryption transmission function is particularly suitable for high-security scenarios, such as sensitive data transmission in industrial production or confidentiality requirements in scientific research experiments. This design ensures the integrity and security of data during transmission, providing users with a higher level of trust.

[0098] In general, the data transmission module 6 in this application not only realizes diversified communication methods through the combination of USB transmission, wireless transmission and encrypted transmission, but also provides comprehensive support in terms of efficiency, flexibility and security. This module is suitable for various scenarios such as industrial production, scientific research experiments and mobile detection, and significantly improves the practicality and reliability of the vacuum detection system.

[0099] In addition, in the embodiment of the present application, the digital display detection system also includes a self-test module 7, a calibration module 8, an alarm module 9, a user-defined module 10, an energy-saving management module 11 and a battery monitoring module 12 (not shown in FIG. Figure 1 ), further improving the system’s intelligence, reliability and user experience.

[0100] First, the self-check module 7 automatically runs when the system starts up, and is used to detect the operating status of the level conversion module, the signal acquisition and processing module, and the display module. When an abnormality occurs in a module, the self-check module can quickly identify and provide fault prompt information to help users find and solve problems in a timely manner. This module ensures the operating stability of the system before startup and reduces the risk of detection interruption due to module failure.

[0101] Secondly, the calibration module 8 is used to calibrate the voltage of the composite vacuum gauge before testing to ensure the accuracy of the test data. By calibrating the vacuum gauge, the module can eliminate the deviation caused by equipment aging or environmental factors, ensuring the credibility and accuracy of the test results.

[0102] The alarm module 9 monitors the vacuum value in real time during the detection process. When the detection value exceeds the set threshold, the module reminds the user through sound and light signals, and automatically records abnormal data for subsequent analysis. This module is suitable for scenarios where strict monitoring of the vacuum environment is required, such as vacuum leak warning in industrial production and laboratory equipment protection.

[0103] The user-defined module 10 provides users with personalized settings. Users can set alarm thresholds, data recording frequency, and default settings for display units according to actual needs. This module enables the system to adapt to diverse usage needs more flexibly and simplifies the operation process.

[0104] When the system is idle for a set time, the energy-saving management module 11 automatically enters a low-power mode to extend the battery life of the lithium battery. When the system receives an external command, the energy-saving management module can quickly wake up the system and restore it to working state. This function is particularly suitable for scenarios that require long standby time, such as industrial sites and mobile detection.

[0105] The battery monitoring module 12 is used to monitor the remaining power of the lithium battery in real time and remind the user to charge when the power is low. Through battery monitoring, the user can effectively avoid detection interruption caused by power exhaustion and arrange the use and maintenance of the device more reasonably.

[0106] Overall, these extended function modules in this application further improve the functional layout of the system, which not only improves the stability of equipment operation and the reliability of test results, but also enhances the user experience through personalized settings and energy-saving design, and is suitable for complex and changeable industrial and scientific research scenarios.

[0107] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps recorded in this application can be executed in parallel, sequentially or in different orders, as long as the expected results of the technical solution of this application can be achieved, and this document is not limited here.

[0108] The above specific implementations do not constitute a limitation on the protection scope of this application. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of this application should be included in the protection scope of this application.

Claims

1. A small digital display detection system for a composite vacuum gauge, characterized in that: include: A level conversion module, used for connecting the composite vacuum gauge via a DB15 universal interface and converting the 5V power provided by the lithium battery into 24V and 3.3V to meet the power supply requirements of the composite vacuum gauge and the system; The signal acquisition and processing module is used to acquire the voltage signal sent back by the composite vacuum gauge, and perform calculation and processing to obtain the current vacuum value; A display module, used to display the vacuum value and support switching of display modes; A data storage module, used for storing the vacuum degree value; A unit conversion module, used to convert the vacuum value between Torr, Bar and Pa units; The data transmission module is used to transmit the vacuum degree value to the host computer through the USB interface.

2. The system according to claim 1, characterized in that The level conversion module supports the power supply requirements of various types of composite vacuum gauges.

3. The system according to claim 2, characterized in that The signal acquisition and processing module further includes: A sampling unit, used for collecting the voltage signal transmitted back by the composite vacuum gauge; An error correction unit, used for performing error correction on the collected voltage signal using a built-in algorithm; The model matching unit is used to select the corresponding calculation model according to the characteristic parameters of different types of composite vacuum gauges to calculate the voltage signal after error correction to obtain the current detected vacuum value.

4. The system according to claim 3, characterized in that The display module further includes: A multi-mode display unit, used to switch the display mode of the display screen, wherein the display mode includes a real-time display mode, a historical record display mode and a trend graph display mode; The environment adaptation unit is used to automatically adjust the background light intensity of the display screen according to the ambient brightness to adapt to different operating environments.

5. The system according to claim 4, characterized in that The data storage module comprises: A recording unit, used to automatically record the vacuum value of each test and its corresponding timestamp; The comparison unit is used to compare and analyze the vacuum values ​​detected by multiple vacuum gauges or the same vacuum gauge at different times.

6. The system according to claim 5, characterized in that The data storage module further includes: A trend analysis unit, used to analyze the changing trend of the pressure in the vacuum chamber based on the recorded detection data; The data export unit is used to export the recorded test data to an external device in a standardized format.

7. The system according to claim 5, characterized in that The data transmission module supports a real-time data transmission protocol, can send the vacuum degree value to a host computer with low latency, and supports two-way data communication.

8. The system according to claim 7, characterized in that The data transmission module further includes: A wireless transmission unit, used to realize remote transmission of the vacuum value through a Wi-Fi or Bluetooth interface and support remote operation of a host computer; The encryption transmission unit is used to encrypt the transmitted vacuum degree value to ensure the security of the vacuum degree value during transmission.

9. The system according to claim 8, characterized in that Also includes: A self-check module, used to automatically detect the operating status of the level conversion module, the signal acquisition and processing module and the display module when the system is started, and provide a fault prompt; A calibration module, used for calibrating the voltage of the composite vacuum gauge before detection; An alarm module is used to remind the user through sound and light signals and automatically record abnormal data when the vacuum value exceeds a set threshold during the detection process; User-defined module, used to set alarm thresholds, data logging frequency and display unit default settings according to user needs.

10. The system according to claim 9, characterized in that Also includes: An energy-saving management module, used to automatically enter a low-power consumption mode when the system is idle for a set period of time, and wake up when receiving an external command; The battery monitoring module is used to monitor the remaining power of the lithium battery in real time and prompt the user to charge.

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