Touch control type intelligent pressure monitoring system

Abstract

The invention belongs to the technical field of voltage monitoring, and mainly relates to a touch type intelligent pressure monitoring system, which is characterized in that a main control module performs analog-to-digital conversion on pressure data acquired by a pressure acquisition module to obtain digital pressure data; the master control module classifies the digital pressure data into positive pressure data and / or negative pressure data and transmits the positive pressure data to a positive pressure meter in the touch display screen and / or the master control module transmits the negative pressure data to a negative pressure meter in the touch display screen, and the positive pressure meter and the negative pressure meter are digital display pressure meters; the main control module comprises an alarm unit, and the touch display screen transmits a touch signal to the alarm unit and drives the alarm unit to select an alarm threshold parameter; after the alarm threshold of the alarm unit is determined, the alarm unit judges whether to give an alarm or not according to the positive pressure data and / or the negative pressure data; therefore, the voltage monitoring system has the characteristics of high precision, high stability and intellectualization, and can meet high requirements of modern industry on pressure monitoring.

Description

Technical Field

[0001] The present invention belongs to the technical field of pressure monitoring, and in particular relates to a touch-controlled intelligent pressure monitoring system. Background Art

[0002] Pressure detection plays a vital role in modern industrial production, automation control and safety monitoring. Pressure not only reflects the working status of the system, but is also an important parameter to ensure the safe and efficient operation of equipment. With the expansion of industrial scale and the complexity of production processes, the requirements for the accuracy, stability and intelligence of pressure detection are constantly increasing. Traditional pressure detection systems mainly use analog signal acquisition and seven-segment digital display. Their advantages are limited to simple structure and low cost, but they can no longer meet user needs in modern industrial applications.

[0003] In the traditional pressure measurement process, seven-segment digital pressure gauges are widely used. This type of pressure gauge uses a simple LED seven-segment display to present the pressure value, which has the advantages of simple structure and low cost. However, in practical applications, especially in some industrial environments with high precision requirements, the limitations of the seven-segment digital pressure gauge are gradually exposed. First of all, the alarm threshold setting of the pressure gauge needs to be adjusted separately, and the digital tube is set segment by segment. The process is cumbersome, especially for users who are not familiar with the equipment, which increases the risk of error and affects production efficiency. The seven-segment digital pressure gauge also requires an additional pressure probe, and the split design leads to a complex equipment structure, which increases the difficulty of debugging and maintenance. This application also takes into account that the seven-segment display structure limits digital accuracy, and the resolution and display range are limited, which cannot meet the needs of high-precision fields such as precision manufacturing.

[0004] In addition, traditional pressure gauges only display pressure values ​​and lack intelligent control functions such as data storage, unit switching, and automatic calibration. They cannot meet the needs of high-end industrial applications such as automated production lines. Their single analog signal processing technology is easily affected by external environmental factors such as temperature changes and electromagnetic interference, reducing equipment reliability and measurement accuracy.

[0005] Based on this, there is an urgent need to improve the existing pressure monitoring system to solve the above-mentioned technical defects. Summary of the invention

[0006] The purpose of the present invention is to provide a touch-controlled intelligent pressure monitoring system to address the deficiencies in the prior art. The system integrates pressure acquisition, analog-to-digital conversion, data processing, touch display and alarm functions, has the characteristics of high precision, high stability and intelligence, and can meet the high requirements of modern industry for pressure monitoring.

[0007] In order to achieve the above-mentioned invention objectives, this application implements the following technical solutions: A touch-type intelligent pressure monitoring system comprises a plurality of pressure acquisition modules and a main control module for converting analog-to-digital signals of pressure data acquired by the pressure acquisition modules; the main control module is electrically connected to a touch display screen; The main control module performs analog-to-digital conversion of the pressure data collected by the pressure acquisition module into digital pressure data. The main control module classifies the digital pressure data into positive pressure data and / or negative pressure data and transmits the positive pressure data to the positive pressure gauge in the touch display screen and / or the main control module transmits the negative pressure data to the negative pressure gauge in the touch display screen. Both the positive pressure gauge and the negative pressure gauge are digital pressure gauges. The positive and negative pressure gauges can be flexibly combined and displayed according to user needs or working conditions, such as one positive pressure gauge and two negative pressure gauges. The touch display screen of one positive pressure gauge and three negative pressure gauges is designed with a metal shell. The main control module includes an alarm unit, and the touch display screen transmits the touch signal to the alarm unit and drives the alarm unit to select the alarm threshold parameter; After the alarm threshold of the alarm unit is determined, the alarm unit determines whether to issue an alarm based on the positive pressure data and / or the negative pressure data.

[0008] The above technical solution produces the following technical effects: The touch-controlled intelligent pressure monitoring system of the present application provides a solution to the defects of the traditional pressure detection system by integrating microprocessor and digital signal processing technology. Specifically, this system integrates the positive and negative pressure gauge functions, and users can make unified settings through the touch screen, which simplifies the operation process. It also supports combined display to improve the convenience of user operation.

[0009] In addition, the use of digital signal acquisition and processing technology avoids the common interference problems in analog signals. Regardless of the industrial environment, this technology can ensure the stability and high accuracy of the measurement results, providing users with more reliable data support for monitoring in different pressure ranges. At the same time, this application can perform a variety of alarm configurations through the corresponding modules, and can be flexibly adjusted according to different working conditions (providing simple mode, hysteresis mode and window mode) to ensure the safety of industrial applications.

[0010] As a further improvement of the touch-type intelligent pressure monitoring system of the present application, the main control module includes an MCU unit, an AD module and a communication module, and the AD module and the communication module are electrically connected to the MCU unit respectively; The AD module is used to convert the pressure data collected by the pressure collection module from analog signals into digital pressure data and transmit the digital pressure data to the MCU unit; The MCU unit will classify the digital pressure data into positive pressure data and / or negative pressure data; The communication module is used to output positive pressure data and / or negative pressure data to a host computer.

[0011] As a further improvement of a touch-type intelligent pressure monitoring system of the present application, the pressure acquisition module includes a pressure sensor and a filter electrically connected to the pressure sensor. The pressure sensor is used to convert the pressure data of the object to be tested into pressure data of an analog signal type, and the filter filters the pressure data collected by the pressure sensor.

[0012] As a further improvement of the touch-controlled intelligent pressure monitoring system of the present application, the MCU unit includes an automatic calibration subunit; The automatic calibration subunit is electrically connected to the pressure sensor, and the automatic calibration subunit obtains the deviation between the measured value and the standard value by periodically comparing the standard pressure data imported from the outside with the pressure data converted by the pressure sensor; The automatic calibration subunit corrects the pressure data output by the pressure sensor by an offset.

[0013] As a further improvement of a touch-type intelligent pressure monitoring system of the present application, the pressure sensor transmits the converted pressure data to two parallel signal amplifiers. The pressure data is then transmitted through the two parallel signal amplifiers to a signal amplifier that is connected in series with the two parallel signal amplifiers and then transmitted to the filter.

[0014] As a further improvement of a touch-controlled intelligent pressure monitoring system of the present application, the MCU unit includes a storage module, and the storage module is used to store positive pressure data and / or negative pressure data.

[0015] As a further improvement of a touch-controlled intelligent pressure monitoring system of the present application, the MCU unit includes a unit conversion subunit, which converts the positive pressure data and / or the negative pressure data into data of pressure units supported by the positive pressure table and / or the negative pressure table; The pressure units supported by the positive pressure gauge and / or negative pressure gauge are: at least one of Pa, MPa, and psi.

[0016] As a further improvement of the touch-type intelligent pressure monitoring system of the present application, the communication module outputs the positive pressure data and / or negative pressure data to the host computer through any one of the communication modes of ODBU, RS485 and Bluetooth; The host computer is any one of a computer system, a PLC system, or a mobile phone that can interact with the user. [1] As a further improvement of the touch-controlled intelligent pressure monitoring system of the present application, the alarm threshold parameter is a high limit value or a low limit value.

[0017] As a further improvement of the touch-controlled intelligent pressure monitoring system of the present application, the alarm unit alarms by determining whether the positive pressure data and / or the negative pressure data exceeds a high limit or is lower than a low limit; When the positive pressure data and / or negative pressure data exceeds the high limit, the alarm unit triggers the high limit alarm through the buzzer; When the positive pressure data and / or the negative pressure data is lower than the lower limit value, the alarm unit triggers the lower limit alarm through sound and light alarm; When the positive pressure data and / or the negative pressure data is between the lower limit value and the upper limit value, the alarm unit does not trigger an alarm. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings: Figure 1 This is a schematic diagram of the structure of Example 1 of the present invention; Figure 2 The workflow of the automatic calibration subunit in Example 2 of the present invention; Figure 3 This is a Kalman filter control block diagram in Example 2 of the present invention; Figure 4 This is the process of pressure collection in Example 3 of the present invention; Figure 5 This is a schematic diagram of a touch-type intelligent pressure monitoring system in Example 4 of the present invention (a combination of a single positive pressure gauge and a double negative pressure gauge); Figure 6 This is a schematic diagram of a touch-type intelligent pressure monitoring system in Example 4 of the present invention (a combination of a single positive pressure gauge and a double negative pressure gauge); Figure 7 Schematic diagram of the touch-type intelligent pressure monitoring system in Example 4 of the present invention (combination of a single positive pressure gauge and three negative pressure gauges); Figure 8 This is a schematic diagram of a touch-controlled intelligent pressure monitoring system in Example 4 of the present invention (combination of two positive pressure gauges and four negative pressure gauges); in: 1-Pressure acquisition module; 11- Pressure sensor; 12- filter; 2- Main control module; 21-MCU unit; 211 - automatic calibration subunit; 22-AD module; 23-communication module; 3- Touch display; 31- Positive pressure gauge; 32-negative pressure gauge; 4- Host computer. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of the present application. The terms used herein in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application.

[0020] Although the present application is disclosed as above with preferred embodiments, it is not intended to limit the claims. Any technical personnel in this field may make several possible changes and modifications without departing from the concept of the present application. Therefore, the scope of protection of the present application shall be based on the scope defined by the claims of the present application.

[0021] The present invention is further described in detail below in conjunction with specific embodiments, but the embodiments of the present invention are not limited thereto.

[0022] Example 1 It is known that in the traditional pressure measurement process, seven-segment digital pressure gauges are widely used. This type of pressure gauge uses a simple LED seven-segment display to present the pressure value, which has the advantages of simple structure and low cost. However, in practical applications, especially in some industrial environments with high precision requirements, the limitations of seven-segment digital pressure gauges are gradually exposed.

[0023] Specifically, in intelligent manufacturing equipment, it is usually necessary to equip a positive pressure gauge 31 and multiple negative pressure gauges 32. When setting the alarm thresholds of these pressure gauges, each digital pressure gauge needs to be adjusted individually. In addition, during the adjustment process, the user needs to set each digital tube segment by segment. Due to the lack of overall systematicity, this operation method is not only cumbersome, but also prone to setting errors due to human operating errors, thereby causing false alarms. Especially for users who are not familiar with the equipment, this complicated setting process further increases the risk of errors. Overall, this complicated setting operation process not only affects production efficiency, but is also particularly inefficient in modern industrial environments with a high degree of automation.

[0024] In addition, when measuring pressure, the seven-segment digital pressure gauge usually requires an additional pressure probe to transmit the pressure signal to the main display device. Since the probe and the display device are designed separately, this split measurement method of the structure easily complicates the equipment structure, thereby increasing the difficulty of installation, debugging and maintenance. And due to the structural design of the seven-segment display, the digital precision it can display is low, and it can usually only display a limited range of values. The resolution and display range of the seven-segment display are limited, which is inadequate in application scenarios that require accurate measurement of small pressure changes, especially in high-precision fields such as precision manufacturing. This technology cannot meet the needs of industrial applications with high precision requirements, especially in some complex production processes.

[0025] like Figure 1 As shown, in order to solve the technical defects of the existing seven-segment digital pressure gauge in the process of measuring pressure, the present application makes improvements to the pressure detection system. Specifically, the intelligent pressure monitoring system of the present application is a touch-controlled system, comprising multiple pressure acquisition modules 1, and a main control module 2 that performs analog-to-digital signal conversion on the pressure data collected by the pressure acquisition module 1; the main control module 2 is electrically connected to the touch display 3 screen; the main control module 2 performs analog-to-digital conversion on the pressure data collected by the pressure acquisition module 1 into digital pressure data, the main control module 2 classifies the digital pressure data into positive pressure data and / or negative pressure data and transmits the positive pressure data to the positive pressure gauge 31 in the touch display 3 screen and / or the main control module 2 transmits the negative pressure data to the negative pressure gauge 32 in the touch display 3 screen, both the positive pressure gauge 31 and the negative pressure gauge 32 are digital pressure gauges; the main control module 2 includes an alarm unit, the touch display 3 screen transmits the touch signal to the alarm unit and drives the alarm unit to select the alarm threshold parameter; the touch display 3 is designed as a metal shell; wherein the metal shell represented in the present application has excellent sealing performance, which can effectively prevent external gas, dust and moisture from invading the interior of the equipment, ensuring the long-term reliability and durability of the equipment in harsh industrial environments. However, the prior art often uses plastic materials, which have poor sealing properties during implementation, cannot provide good durability, and are not suitable for use in harsh industrial environments.

[0026] After the alarm threshold of the alarm unit is determined, the alarm unit determines whether to issue an alarm based on the positive pressure data and / or the negative pressure data.

[0027] The working principle of the above technical solution is: The system acquires the pressure data of the object to be tested in real time through the pressure acquisition module 1. The data is first converted into an analog signal and then filtered through the filter 12 to eliminate possible noise interference. The processed analog signal is sent to the AD module 22 of the main control module 2 for high-precision analog-to-digital conversion to convert the analog signal into a digital signal, i.e., digital pressure data. The MCU unit 21 in the main control module 2 receives these digital pressure data and classifies them into positive pressure data and negative pressure data according to the positive and negative characteristics of the data.

[0028] Furthermore, the MCU unit 21 is not only responsible for the classification and processing of data, but also interacts with the host computer 4 through the communication module 23 to realize remote monitoring and analysis of data. Among them, the host computer is any one of a computer system, a PLC system or a mobile phone that can interact with the user. The user can directly operate by tightening. At the same time, the built-in storage module of the MCU unit 21 can store pressure data for a period of time, which facilitates historical data query and analysis. In addition, the unit conversion subunit can convert pressure data into different pressure units, such as Pascal (Pa), Megapascal (MPa) or Pound force per square inch (psi), according to user needs, to meet the needs of different application scenarios.

[0029] In terms of the alarm function, the user sets the alarm threshold parameters by touching the display 3 screens, and these parameters are transmitted to the alarm unit. The alarm unit monitors the positive and negative pressure data in real time. Once the data exceeds the preset high limit or falls below the low limit, the corresponding alarm mechanism will be triggered. The high limit alarm sounds an alarm through a buzzer, while the low limit alarm sounds and lights an alarm through an audible and visual alarm device at the same time to attract the attention of the operator. When the pressure data is within the set safety range, the alarm unit remains silent and does not trigger any alarm.

[0030] This touch-controlled intelligent pressure monitoring system not only improves the accuracy and stability of pressure measurement, but also greatly simplifies the operation process, reduces equipment maintenance costs, and improves the efficiency and safety of industrial production through integrated design and intelligent functions. It is known that the traditional seven-segment digital pressure gauge can only complete the most basic pressure value display function, and lacks more complex operation and intelligent control functions. For example, it is unable to perform functions such as data storage, pressure unit switching, and automatic calibration. This makes it incapable of meeting the needs of modern industrial production for intelligence, automation, and data management in industrial applications that require high-end functions, such as automated production lines, petrochemicals, aerospace, etc.

[0031] As shown in Figures 1-3, different from Example 1: In order to further improve the intelligent control and optimization of the collected data, the MCU unit 21 in the present application further includes an automatic calibration subunit 211. Figure 3 Specifically, the Kalman filter algorithm is used to optimize the pressure data converted by the pressure sensor 11. The automatic calibration subunit 211 is electrically connected to the pressure sensor 11, and the automatic calibration subunit 211 obtains the deviation between the measured value and the standard value by periodically comparing the standard pressure data imported from the outside with the pressure data converted by the pressure sensor 11; the automatic calibration subunit 211 corrects the pressure data output by the pressure sensor 11 according to the deviation.

[0032] In the specific implementation process, the automatic calibration method uses the Kalman algorithm to optimize and refine the output of the pressure sensor 11. The Kalman algorithm is a recursive optimal estimation algorithm that can dynamically adjust the pressure measurement results by integrating sensor data and system model prediction in the presence of noise, thereby providing more accurate pressure data.

[0033] Specifically, the system will regularly compare the measured value of the sensor with the known standard pressure source and calculate the deviation between the measured value and the standard value. The Kalman algorithm processes these errors and uses a recursive optimization algorithm to integrate the current collected data with the system status prediction, update the error compensation parameters in real time, eliminate the impact of environmental factors (such as temperature changes, equipment aging, etc.) on the measurement, and ensure the accuracy of each pressure measurement result. The algorithm can also automatically correct the sensor output during continuous monitoring without manual intervention, and ensure the efficiency and real-time performance of the calibration process. This automatic calibration method greatly improves the stability and long-term reliability of the equipment, ensuring that the pressure monitoring system always maintains high accuracy under different working conditions.

[0034] Specifically, in the present application, the correction coefficient is dynamically applied to the sensor data by embedding the Kalman filter algorithm module - the automatic calibration subunit 211 in the MCU unit 21.

[0035] The other parts are the same as those in Example 1, and will not be described in detail in this example. like Figure 4 As shown, what is different from Example 1 is that: in order to further improve the accuracy of the pressure data processed by the AD module 22, further, the pressure sensor 11 of the present application transmits the converted pressure data to two parallel signal amplifiers, and the pressure data is transmitted to a signal amplifier connected in series with the two parallel signal amplifiers after passing through the two parallel signal amplifiers and transmitted to the filter 12.

[0036] Specifically, the present application performs three-stage amplification processing on the pressure data by setting two parallel signal amplifiers on the transmission path of the pressure data, and a signal amplifier connected in series with the two parallel signal amplifiers. This design can enhance the strength of the signal and improve the signal-to-noise ratio, thereby reducing losses and interference during signal transmission and processing. The pressure data after three-stage amplification is then sent to the filter 12 for filtering, which can further improve the accuracy and stability of the data. This improvement is particularly suitable for the measurement of weak signals, and can ensure that the system can capture accurate data even when the pressure changes slightly, thereby improving the measurement accuracy and response speed of the system. In addition, by optimizing the signal transmission and processing paths, the present application further enhances the anti-interference ability of the system, ensuring stable operation in various complex industrial environments.

[0037] The other parts are the same as those in Example 1 of the present application, and will not be described in detail in this embodiment. like Figure 5-8 As shown, different from Example 1: In order to achieve automatic triggering of the alarm when the pressure value exceeds the set safety range, and to protect the safety of the equipment through sound and light prompts to prevent potential risks. Specifically, the alarm threshold parameter is a high limit value or a low limit value. The alarm unit alarms by judging whether the positive pressure data and / or the negative pressure data exceeds the high limit value or is lower than the low limit value; when the positive pressure data and / or the negative pressure data exceeds the high limit value, the alarm unit triggers the high limit alarm through a buzzer; when the positive pressure data and / or the negative pressure data is lower than the low limit value, the alarm unit triggers the low limit alarm through sound and light alarm; when the positive pressure data and / or the negative pressure data is between the low limit value and the high limit value, the alarm unit does not trigger the alarm.

[0038] Furthermore, the limit setting function in the touch screen is mainly used to define the safe range of pressure. By setting the upper limit and the lower limit, an alarm or protective operation is implemented when the pressure exceeds or is insufficient. The following is a detailed description of the limit function and judgment logic: 1) Limit setting method: Users can flexibly set the high and low limits in two ways: Direct input: Click the upper limit or lower limit number (such as "850kPa" or "-40kPa") area, the system will automatically pop up a numeric input keyboard, and the user can enter the specific limit value through the keyboard.

[0039] Fine-tuning function: When small adjustments to the limit are required, the user can select the high limit or low limit and make fine adjustments using the "▲" (up) and "▼" (down) buttons on the touch screen.

[0040] After the setting is completed, the MCU will store the new limit value and monitor in real time whether the current pressure value exceeds the set range to ensure the immediacy and accuracy of monitoring.

[0041] 2) Limit judgment logic: High limit alarm: If the current pressure value (such as positive pressure 860kPa) exceeds the set high limit (such as 850kPa), the system triggers the high limit alarm, and the alarm status in the touch screen interface will display "valid". At the same time, the system can sound an alarm through the buzzer to remind the user that the pressure is too high (the buzzer sound can be enabled or disabled according to needs).

[0042] Low limit alarm: If the current pressure value is lower than the set lower limit (such as 780kPa), the system triggers a low limit alarm and displays an alarm icon in the interface, while using an audible and visual alarm to remind the user that the pressure is too low.

[0043] Normal range: When the pressure value is between the upper limit and the lower limit, the system operates normally and there is no alarm prompt.

[0044] 3) Alarm status maintenance and closing conditions: The alarm status will remain valid until the release conditions are met to ensure that users can pay attention to and handle abnormal situations in a timely manner.

[0045] The limit judgment logic of this system is based on the alarm triggered by exceeding the set high limit or low limit, and controls the closing conditions of the alarm state through three different modes (simple mode, hysteresis mode and window mode). These three modes meet the needs of different industrial scenarios. The upper limit alarm and closing conditions are as follows (the lower limit alarm logic is opposite to the upper limit): Simple Mode: Trigger: When the current pressure value is greater than the high limit, the alarm is triggered.

[0046] Close: When the pressure value is lower than the high limit, the alarm is closed immediately.

[0047] Features: Real-time response, suitable for scenarios with high demand for rapid alarm processing.

[0048] Hysteresis Mode: Trigger: When the current pressure value is greater than the high limit, the alarm is triggered.

[0049] Close: The alarm state will continue until the pressure value drops below the low limit.

[0050] Features: Increase the hysteresis range of alarm shutdown to prevent frequent triggering and closing of alarms due to short-term pressure fluctuations. It is suitable for industrial scenarios with large pressure changes.

[0051] Windowed Mode: Trigger: When the current pressure value is greater than the high limit, the alarm is triggered.

[0052] Close: When the pressure value returns to the window range between the high limit and the low limit, the alarm is closed.

[0053] Features: Focus on monitoring whether the pressure is in a certain safe range, suitable for application scenarios with strict requirements on the stability of the pressure range.

[0054] For the limit setting and alarm judgment of the positive pressure gauge 31, it is assumed that during the pressurization process of the gas tank, the user sets the upper limit of the positive pressure gauge 31 to 850kPa and the lower limit to 780kPa through the touch screen; since the previous pressure value is 860kPa, which exceeds the upper limit, the system triggers the high limit alarm, the alarm icon lights up, and notifies the host computer 4. The user can reduce the gas tank pressure to a safe range through manual operation or automatic adjustment. If the current pressure drops to 770kPa, which is lower than the lower limit, the system triggers the low limit alarm, prompting the user to increase the gas tank pressure.

[0055] Regarding the limit setting and alarm judgment of the actual negative pressure gauge 32, it is assumed that in the vacuum adsorption equipment, the user sets the upper limit of the negative pressure gauge 321 to -35kPa and the lower limit to -40kPa; the current negative pressure is -40kPa, which just reaches the lower limit, and the system remains in a normal state. If the negative pressure drops to -45kPa, exceeding the lower limit range, the system triggers the low limit alarm and prompts the user to perform vacuum calibration of the adsorption equipment through sound and light alarms. If the negative pressure rises to -30kPa, exceeding the high limit, the system issues a high limit alarm, indicating that the adsorption equipment may have a vacuum leak problem. In the display and judgment of multiple gauges, it is assumed that the user configures the touch screen to display a combination of a positive pressure gauge 31 and two negative pressure gauges 32, and the settings are as follows: Positive pressure gauge 31: upper limit 850kPa, lower limit 780kPa; the current value is 860kPa, triggering the high limit alarm.

[0056] Negative pressure gauge 321: upper limit -35kPa, lower limit -40kPa; the current value is -40kPa, which is within the normal range. Negative pressure gauge 322: upper limit -75kPa, lower limit -70kPa; the current value is -80kPa, which is lower than the lower limit, triggering the lower limit alarm.

[0057] Figure 6 , Figure 7 and Figure 8Schematic diagrams of the touch screen display interface of the touch-controlled intelligent pressure monitoring system of the present invention in different combinations are shown respectively. The interface design is divided into multiple functional areas, including a positive pressure gauge 31 display area, a positive pressure gauge 31 status setting area, a negative pressure gauge 32 display area, and a negative pressure gauge 32 status setting area. The display area of ​​the positive pressure gauge 31 is used to display the positive pressure value in real time, and the display area of ​​the negative pressure gauge 32 is used to display the negative pressure value in real time; the two status setting areas are used to configure parameters and provide prompt information of the pressure detection results (such as "PASS" or "Alarm"). In addition, a menu function key area is provided in the upper right corner of the interface, through which the user can adjust parameters, turn pages, and perform other operations, so as to flexibly configure the required pressure gauge combination, and support the simultaneous display of multiple positive pressure gauges 31 and negative pressure gauges 32.

[0058] The other details that are the same as those in Example 1 are not described in detail in this example.

[0059] It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Furthermore, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0060] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0061] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0062] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A touch-controlled intelligent pressure monitoring system, characterized in that: It comprises a plurality of pressure acquisition modules (1) and a main control module (2) for performing analog-to-digital signal conversion on the pressure data acquired by the pressure acquisition modules (1); the main control module (2) is electrically connected to a touch display screen (3); The main control module (2) performs analog-to-digital conversion on the pressure data collected by the pressure collection module (1) into digital pressure data, the main control module (2) classifies the digital pressure data into positive pressure data and / or negative pressure data and transmits the positive pressure data to a positive pressure gauge (31) in the touch display screen (3) and / or the main control module (2) transmits the negative pressure data to a negative pressure gauge (32) in the touch display screen (3), the positive pressure gauge (31) and the negative pressure gauge (32) are both digital pressure gauges; the touch display screen (3) is designed with a metal shell; [1] Wherein, the positive pressure gauge (31) and the negative pressure gauge (32) can be flexibly combined and displayed according to user needs or working conditions; The main control module (2) comprises an alarm unit, and the touch display screen (3) transmits a touch signal to the alarm unit and drives the alarm unit to select an alarm threshold parameter; [2] After the alarm threshold of the alarm unit is determined, the alarm unit determines whether to issue an alarm according to the positive pressure data and / or the negative pressure data.

2. A touch-controlled intelligent pressure monitoring system according to claim 1, characterized in that: The main control module (2) comprises an MCU unit (21), an AD module (22) and a communication module (23), wherein the AD module (22) and the communication module (23) are electrically connected to the MCU unit (21) respectively; The AD module (22) is used to convert the pressure data collected by the pressure collection module (1) from an analog signal into digital pressure data and transmit the digital pressure data to the MCU unit (21); The MCU unit (21) classifies the digital pressure data into the positive pressure data and / or the negative pressure data; The communication module (23) is used to output the positive pressure data and / or the negative pressure data to a host computer (4).

3. A touch-controlled intelligent pressure monitoring system according to claim 2, characterized in that: The pressure acquisition module (1) comprises a pressure sensor (11) and a filter (12) electrically connected to the pressure sensor (11); the pressure sensor (11) is used to convert pressure data of the object to be measured into pressure data of an analog signal type; and the filter (12) performs filtering processing on the pressure data collected by the pressure sensor (11).

4. The touch-controlled intelligent pressure monitoring system according to claim 3, characterized in that: The MCU unit (21) includes an automatic calibration subunit (211); The automatic calibration subunit (211) is electrically connected to the pressure sensor (11), and the automatic calibration subunit (211) obtains a deviation between a measured value and a standard value by regularly comparing standard pressure data imported from the outside with the pressure data converted by the pressure sensor (11); The automatic calibration subunit (211) corrects the pressure data output by the pressure sensor using the deviation.

5. The touch-controlled intelligent pressure monitoring system according to claim 3, characterized in that: The pressure sensor (11) transmits the converted pressure data to two parallel signal amplifiers. The pressure data is then transmitted through the two parallel signal amplifiers to one signal amplifier that is connected in series with the two parallel signal amplifiers and then transmitted to the filter (12).

6. The touch-controlled intelligent pressure monitoring system according to claim 2, characterized in that: The MCU unit (21) comprises a storage module, and the storage module is used to store the positive pressure data and / or the negative pressure data.

7. The touch-controlled intelligent pressure monitoring system according to claim 2, characterized in that: The MCU unit (21) comprises a unit conversion subunit, which converts the positive pressure data and / or the negative pressure data into data of a pressure unit supported by the positive pressure table (31) and / or the negative pressure table (32); The pressure unit supported by the positive pressure gauge (31) and / or the negative pressure gauge (32) is at least one of Pa, MPa, and psi.

8. The touch-controlled intelligent pressure monitoring system according to claim 2, characterized in that: The communication module (23) outputs the positive pressure data and / or the negative pressure data to the host computer (4) via any one of ODBU, RS485 and Bluetooth communication methods; The host computer (4) is any one of a computer system, a PLC system or a mobile phone that can interact with a user. [3] The touch-controlled intelligent pressure monitoring system according to claim 1 is characterized in that: The alarm threshold parameter is a high limit value or a low limit value.

9. The touch-controlled intelligent pressure monitoring system according to claim 9, characterized in that: The alarm unit generates an alarm by judging whether the positive pressure data and / or the negative pressure data exceeds the upper limit or is lower than the lower limit; When the positive pressure data and / or the negative pressure data exceeds the upper limit value, the alarm unit triggers the upper limit alarm through a buzzer; When the positive pressure data and / or the negative pressure data is lower than the lower limit value, the alarm unit triggers a lower limit alarm through an audible and visual alarm; When the positive pressure data and / or the negative pressure data is between the lower limit value and the upper limit value, the alarm unit does not trigger an alarm.

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