Malus ForceMapping film pressure distribution test system based on multi-mode signal integration

Abstract

The invention relates to the technical field of instrument and meter testing, in particular to a Malus ForceMapping film pressure distribution testing system based on multi-mode signal integration. The device comprises a thin film pressure testing unit, which is composed of a ForceMapping thin film pressure collector, a ForceMapping thin film pressure distribution sensor and ForceMapping thin film pressure analysis software, and is used for collecting, displaying and analyzing pressure distribution data in real time; the analog quantity channel unit is integrated in the ForceMapping film pressure collector and is used for accessing temperature, displacement, acceleration and tilt angle sensor signals; the digital quantity channel unit is integrated in the ForceMapping film pressure collector and is used for accessing a strain signal and a film matrix modulation signal. By integrating various sensor signals of film pressure, strain, temperature, displacement, acceleration, inclination angle and the like, a multi-mode synchronous acquisition and analysis system is constructed, and the problems that a traditional system cannot comprehensively reflect the comprehensive state of a measured object, and multi-physics field correlation analysis is difficult to carry out are solved.

Description

Technical Field

[0001] This invention relates to the field of instrumentation and testing technology, and more specifically, to a multimodal signal integration-based ForceMapping thin film pressure distribution testing system. Background Technology

[0002] There is usually no good method for measuring parameters such as pressure distribution, flatness, contact area, deformation, and temperature on the surface of an object or between narrow structural components. Typically, load cells are used to measure the pressure between structural components, pressure-sensitive paper is used to measure flatness and contact area, and strain gauges and temperature sensors are used to measure deformation and temperature. However, these modules are independent of each other and require different analysis software for processing. Real-time synchronous testing of data cannot be achieved, and the correlation between different physical quantities is difficult to determine.

[0003] Therefore, people have attempted to improve the above-mentioned technical solutions. Currently, the thin film pressure distribution testing system developed by TEKSCAN in the United States can completely replace pressure-sensitive paper and quantify flatness and contact area. However, this system does not support the measurement of other signals such as deformation, temperature, and acceleration, which has significant limitations. The GIN series dynamic and static data acquisition system independently developed by Shanghai Yicheng Testing Equipment Co., Ltd. has multi-parameter testing capabilities. This system can simultaneously acquire signals such as strain, voltage, current, temperature, displacement, acceleration, and load, and analyze each signal through the same software. However, although this system achieves multi-parameter testing, it cannot be connected to a thin film pressure distribution sensor. Summary of the Invention

[0004] The purpose of this invention is to provide a ForceMapping thin film pressure distribution testing system based on multimodal signal integration, in order to solve the problem mentioned in the background art that existing systems cannot simultaneously measure multimodal signals such as deformation, temperature, and acceleration.

[0005] To achieve the above objectives, the present invention aims to provide a ForceMapping thin film pressure distribution testing system based on multimodal signal integration, comprising a thin film pressure testing unit, which consists of a ForceMapping thin film pressure acquisition unit, a ForceMapping thin film pressure distribution sensor, and ForceMapping thin film pressure analysis software. The ForceMapping thin film pressure acquisition unit is connected to the ForceMapping thin film pressure distribution sensor through a dedicated interface, and the ForceMapping thin film pressure acquisition unit establishes a communication connection with the ForceMapping thin film pressure analysis software through an Ethernet interface.

[0006] The analog input channel unit includes two sets of analog input interfaces and is integrated into the ForceMapping thin film pressure acquisition unit. The analog input interfaces are connected to a PT100 platinum resistance signal amplifier, a displacement sensor, a capacitive accelerometer, and an attitude tilt sensor.

[0007] The digital input channel unit includes two sets of digital input interfaces and is integrated into the ForceMapping thin film pressure acquisition unit. The digital input interfaces are connected to the strain signal amplifier and the thin film matrix modulator.

[0008] As a further improvement to this technical solution, the ForceMapping membrane pressure acquisition unit in the membrane pressure testing unit supports multiple units connected together, uses Ethernet communication, and has a maximum communication distance of 200m.

[0009] As a further improvement to this technical solution, the ForceMapping membrane pressure acquisition unit in the membrane pressure testing unit has four sets of membrane sensors on its front panel. Each of the four membrane sensors has an STG1 interface, STG2 interface, STG3 interface, and STG4 interface, respectively, for receiving pressure distribution signals from the ForceMapping membrane pressure distribution sensors. The ForceMapping membrane pressure acquisition unit also has two sets of analog input interfaces and two sets of digital input interfaces. The two sets of analog input interfaces are analog input 1-2 and analog input 3-4 interfaces; the two sets of digital input interfaces are digital input 1-2 and digital input 3-4 interfaces. The ForceMapping membrane pressure acquisition unit also has a power input interface, a power output interface, a grounding terminal, an Ethernet interface, and an indicator light interface.

[0010] As a further improvement to this technical solution, the ForceMapping membrane pressure acquisition unit in the membrane pressure testing unit is equipped with an independent power input interface for connecting to a power source.

[0011] The grounding terminals of the thin-film matrix modulator, strain signal amplifier, and all sensors connected to analog and digital input interfaces are all connected to the grounding terminal of the ForceMapping thin-film pressure acquisition unit, forming a unified reference ground for the system.

[0012] As a further improvement to this technical solution, the front panel of the ForceMapping thin-film pressure distribution sensor in the thin-film pressure testing unit is provided with four sets of output interfaces, namely 1L-65-1 and 1L-65-2 interfaces, 2L-66-1 and 2L-66-2 interfaces, 3L-65-1 and 3L-65-2 interfaces, and 4L-66-1 and 4L-66-2 interfaces, which are used to input pressure distribution signals to the ForceMapping thin-film pressure distribution sensor; wherein, 1L-65-1 and 1L-65-2 interfaces are connected to the STG1 interface, 2L-66-1 and 2L-66-2 interfaces are connected to the STG2 interface, 3L-65-1 and 3L-65-2 interfaces are connected to the STG3 interface, and 4L-66-1 and 4L-66-2 interfaces are connected to the STG4 interface.

[0013] As a further improvement to this technical solution, the ForceMapping membrane pressure analysis software in the membrane pressure testing unit runs on a PC. It receives and displays two-dimensional / three-dimensional pressure cloud maps from the ForceMapping membrane pressure distribution sensor via Ethernet. It has functions for maximum value, minimum value, average value, point, line, surface, multiple maps, centroid, and afterglow analysis. It supports data export to Excel spreadsheets and TXT documents, and supports offline playback.

[0014] As a further improvement to this technical solution, the analog signal channel unit contains four analog signal channels, namely two sets of analog signal input interfaces, which are used to measure strain, temperature, displacement, acceleration, and tilt signals after conversion. It supports synchronous testing and storage with thin film sensor signals and can perform correlation analysis.

[0015] As a further improvement to this technical solution, in the analog channel unit, the PT100 platinum resistance is connected to the PT100 platinum resistance signal amplifier, and the PT100 platinum resistance signal amplifier is connected to the ForceMapping thin film pressure acquisition device through the analog input interface; the PT100 platinum resistance signal amplifier is used to convert the resistance change of the PT100 platinum resistance into a voltage signal, and supports J and K type thermocouples.

[0016] The displacement sensor is connected to the ForceMapping thin-film pressure acquisition unit via an analog input interface to measure the displacement of rod-type and laser-type components, and the output is a voltage signal.

[0017] The capacitive accelerometer is connected to the ForceMapping thin-film pressure acquisition unit via an analog input interface to measure biaxial and triaxial acceleration signals, and outputs a voltage signal.

[0018] The attitude tilt sensor is connected to the ForceMapping diaphragm pressure acquisition unit via an analog input interface to measure biaxial and triaxial tilt signals.

[0019] As a further improvement to this technical solution, in the digital signal channel unit, the 1 / 4 bridge strain gauge and the full bridge strain gauge are connected to the strain signal amplifier, and the strain signal amplifier is connected to the ForceMapping thin film pressure acquisition device through the digital 3-4 interface; the strain signal amplifier is used to amplify the weak signals of the 1 / 4 bridge strain gauge and the full bridge strain gauge and convert them into voltage signals.

[0020] As a further improvement to this technical solution, in the digital channel unit, the thin-film matrix sensor is connected to the thin-film matrix modulator, and the thin-film matrix modulator is connected to the ForceMapping thin-film pressure acquisition unit through the digital I-2 interface. The thin-film matrix modulator is used to modulate the multiple signals of the thin-film matrix sensor into digital signals and output them as voltage signals.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0022] 1. The Yicheng ForceMapping thin film pressure distribution testing system based on multimodal signal integration simultaneously measures thin film pressure, strain, temperature, acceleration, and tilt angle signals through a multimodal architecture. This avoids the need for multiple data acquisition and analysis software, enabling synchronous testing of multimodal signals, significantly improving signal testing efficiency, saving subsequent data processing time, facilitating the analysis of correlations between different signals, expanding the application range of the data acquisition system, and reducing experimental costs. Since the multimodal testing system of this invention supports the connection of 8 devices and each module is replaceable, it can support up to 64 thin film sensors + 32 analog sensors for strain, temperature, etc.

[0023] 2. The Yicheng ForceMapping thin film pressure distribution testing system based on multimodal signal integration achieves high-precision synchronous acquisition and real-time fusion processing of pressure distribution signals and analog and digital extended signals through a unified ForceMapping acquisition platform. It also supports data export, offline playback, and multi-graph analysis functions. Compared with traditional decentralized and asynchronous multi-sensor measurement solutions, it avoids the problems of data time asynchrony and low system integration. It does not require additional configuration of multiple sets of acquisition equipment and can adapt to various complex testing scenarios such as industrial sites and scientific research experiments, realizing traceability and visualization analysis of full-process, multi-dimensional data. Attached Figure Description

[0024] Figure 1 This is one of the system architecture diagrams of the present invention;

[0025] Figure 2This is the second system architecture diagram of the present invention;

[0026] Figure 3 This is a graph showing the fluctuation range of strain field and vibration field data before the experiment of this invention;

[0027] Figure 4 This is a vibration data fluctuation diagram from the experiment of this invention;

[0028] Figure 5 This is a strain data fluctuation diagram after the experiment of this invention;

[0029] Figure 6 This is a temperature and strain fluctuation diagram of the present invention. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Example 1: As Figure 1-2 As shown, a ForceMapping thin film pressure distribution testing system based on multimodal signal integration is provided, including a thin film pressure testing unit 1. The thin film pressure testing unit 1 consists of a ForceMapping thin film pressure acquisition unit, a ForceMapping thin film pressure distribution sensor, and ForceMapping thin film pressure analysis software, which is used to acquire, display, and analyze pressure distribution data in real time. The ForceMapping thin film pressure acquisition unit is connected to the ForceMapping thin film pressure distribution sensor through a dedicated interface, and the ForceMapping thin film pressure acquisition unit establishes a communication connection with the ForceMapping thin film pressure analysis software through an Ethernet interface.

[0032] The ForceMapping membrane pressure acquisition device in this embodiment supports multiple units connected online. The ForceMapping membrane pressure acquisition device has 6400 measurement points, and the highest density of measurement points is 200~300 measurement points / cm². The ForceMapping membrane pressure acquisition device uses Ethernet communication, with a maximum communication distance of 200m, and its flexible bending angle can reach up to 360°.

[0033] Specifically, the ForceMapping membrane pressure acquisition unit in membrane pressure testing unit 1 has four sets of membrane sensors on its front panel. Each of the four sensors has an STG1 interface, STG2 interface, STG3 interface, and STG4 interface, used to receive pressure distribution signals from the ForceMapping membrane pressure distribution sensors. The ForceMapping membrane pressure acquisition unit also has two sets of analog input interfaces and two sets of digital input interfaces. The two sets of analog input interfaces are analog input interfaces 1-2 and analog input interfaces 3-4. The two sets of digital input interfaces are digital input interfaces 1-2 and digital input interfaces 3-4. The ForceMapping membrane pressure acquisition unit also has a power input interface, a power output interface, a ground terminal (GND), an Ethernet interface (LAN), and an indicator light interface.

[0034] Furthermore, the ForceMapping membrane pressure acquisition unit has an independent power input interface for connecting to an AC220V power supply.

[0035] The grounding terminals of the thin-film matrix modulator, strain signal amplifier, and all sensors connected to analog and digital input interfaces are all connected to the grounding terminal (GND) of the ForceMapping thin-film pressure acquisition unit, forming a unified reference ground for the system.

[0036] In this embodiment, the ForceMapping thin-film pressure distribution sensor in the thin-film pressure testing unit 1 has four sets of output interfaces on its front panel: 1L-65-1 and 1L-65-2 interfaces, 2L-66-1 and 2L-66-2 interfaces, 3L-65-1 and 3L-65-2 interfaces, and 4L-66-1 and 4L-66-2 interfaces, which are used to input pressure distribution signals to the ForceMapping thin-film pressure distribution sensor. Among them, 1L-65-1 and 1L-65-2 interfaces are connected to the STG1 interface, 2L-66-1 and 2L-66-2 interfaces are connected to the STG2 interface, 3L-65-1 and 3L-65-2 interfaces are connected to the STG3 interface, and 4L-66-1 and 4L-66-2 interfaces are connected to the STG4 interface.

[0037] The ForceMapping membrane pressure analysis software in this embodiment runs on a PC. It receives and displays two-dimensional / three-dimensional pressure cloud maps from the ForceMapping membrane pressure distribution sensor via Ethernet. It has functions for maximum value, minimum value, average value, point, line, surface, multiple maps, centroid, and afterglow analysis. It also supports data export to Excel spreadsheets and TXT documents, and supports offline playback.

[0038] The Yicheng ForceMapping thin film pressure distribution test system based on multimodal signal integration also includes an analog channel unit 2. The analog channel unit 2 contains two sets of analog input interfaces integrated in the ForceMapping thin film pressure acquisition unit. The analog input interfaces are connected to a PT100 platinum resistance signal amplifier, a displacement sensor, a capacitive acceleration sensor, and an attitude tilt sensor.

[0039] In this embodiment, the analog signal channel unit 2 contains four analog signal channels, namely two sets of analog signal input interfaces, which can measure 0-5V voltage. After conversion, it is used to measure strain, temperature, displacement, acceleration, and tilt angle signals. It supports synchronous testing and storage with thin film sensor signals and can perform correlation analysis.

[0040] Specifically, the PT100 platinum resistance thermometer is connected to the PT100 platinum resistance thermometer signal amplifier, which in turn is connected to the ForceMapping thin-film pressure acquisition unit via an analog input interface. The PT100 platinum resistance thermometer signal amplifier is used to convert the resistance change of the PT100 platinum resistance thermometer into a 0-5V voltage signal, and supports J and K type thermocouples.

[0041] The displacement sensor is connected to the ForceMapping thin-film pressure acquisition unit via an analog input interface to measure the displacement of rod-type and laser-type components, and outputs a 0-5V voltage signal.

[0042] The capacitive accelerometer is connected to the ForceMapping thin-film pressure acquisition unit via an analog input interface to measure biaxial and triaxial acceleration signals, and outputs a 0-5V voltage signal.

[0043] The attitude tilt sensor is connected to the ForceMapping diaphragm pressure acquisition unit via an analog input interface to measure biaxial and triaxial tilt signals.

[0044] The Yicheng ForceMapping thin film pressure distribution testing system based on multimodal signal integration also includes a digital channel unit 3. The digital channel unit 3 contains two sets of digital input interfaces and is integrated into the ForceMapping thin film pressure acquisition unit. The digital input interfaces are connected to the strain signal amplifier and the thin film matrix modulator.

[0045] In this embodiment, the 1 / 4 bridge strain gauge and the full bridge strain gauge are connected to the strain signal amplifier, and the strain signal amplifier is connected to the ForceMapping thin film pressure acquisition device through the digital 3-4 interface; the strain signal amplifier is used to amplify the weak signals of the 1 / 4 bridge strain gauge and the full bridge strain gauge and convert them into 0-5V voltage signals, supporting strain resistances of 120Ω and 350Ω.

[0046] In this embodiment, the thin-film matrix sensor is connected to the thin-film matrix modulator, which is connected to the ForceMapping thin-film pressure acquisition unit through the digital I-2 interface. The thin-film matrix modulator is used to modulate the multiple signals of the thin-film matrix sensor into digital signals and outputs a 0-5V voltage signal.

[0047] Example 2: Water Drilling Mining Experiment

[0048] (1) The requirements for this experiment are as follows:

[0049] Drilling operation: Monitor changes in drilling system data and monitor dynamic changes in sensor pressure distribution during the drilling process.

[0050] Water jet slit cutting operation: monitoring data automatically plots the stress field and strain field after depressurization, and compares the strain field before and after depressurization.

[0051] Flexible tool hole enlargement operation: monitoring data automatically plots the vibration field after pressure relief, and compares the vibration fields before and after pressure relief.

[0052] (2) The specific implementation configuration for this experiment is as follows:

[0053] Yicheng FMAP-6400M membrane pressure acquisition unit: sampling rate 1~1000Hz, maximum number of measurement points supported 6400, supports analog data acquisition, with proper shielding measures, 1 unit.

[0054] Yicheng ISW-30100 Thin-Film Pressure Distribution Sensor: Measurement range 10 MPa, thickness: 0.2 mm, number of measuring points: 6400, 1000*300 mm sensing area, 1 sheet.

[0055] Yicheng ForceMapping membrane pressure analysis software: Real-time sensor pressure contour map display, supports exporting pressure contour map data in image and Excel formats. Capable of analyzing maximum and minimum pressure values, and pressure-time curves. 1 set.

[0056] Four analog signal channels: measurable signals: strain gauge, potentiometer, Pt100 temperature sensor, J / K / T / E / R / S type thermocouple sensor, voltage, 1 set.

[0057] 1 / 4 bridge strain gauge: resistance: 120Ω, strain coefficient: 2.0, dimensions: 120*150*5, cable length 11 meters, 1 piece.

[0058] Accelerometer: Range: 10g, Frequency response: 0-800Hz, Single axis, 1 unit.

[0059] Thin-film matrix sensor: Area: 100*100mm, measuring range: 20MPa, thickness: less than 1mm, 1 unit.

[0060] MFF-M thin-film pressure modulator: 8 channels / unit, output: 0-5V, 1 unit.

[0061] (3) The results of this experiment are as follows:

[0062] Before the experiment - at rest: Figure 3 As shown, after zeroing, the Yicheng ForceMapping thin film pressure analysis software did not display 2D or 3D cloud maps. The strain fluctuation range was -3.8 to -15 micro-strains, and the vibration fluctuation range was -0.015g to 0.001g.

[0063] Drilling Operation: Monitors changes in drilling system data, providing accurate readings without data drift. Monitors dynamic changes in sensors during drilling, reflecting dynamic changes in the stress and strain fields caused by mining operations. All monitoring data can be automatically plotted as contour maps and exported to commonly used formats.

[0064] Flexible tool hole enlarging operation: Figure 4 As shown, the monitoring data automatically plots the vibration field after depressurization, and the vibration fields before and after depressurization are compared.

[0065] Waterjet slit cutting operation: Figure 5 As shown, the monitoring data automatically plots the stress field and strain field after depressurization, and compares the strain field and vibration field before and after depressurization.

[0066] Example 3: LNG ship sealing test experiment

[0067] (1) The requirements for this experiment are as follows:

[0068] Tests were conducted on the surface flatness and sealing of the hot press plate of an LNG ship, and the temperature and strain changes of the hot press plate were measured before and after the test.

[0069] (2) The specific implementation configuration for this experiment is as follows:

[0070] Yicheng FMAP-6400M membrane pressure acquisition unit: sampling rate 1~1000Hz, maximum number of measurement points supported 6400, supports analog data acquisition, with proper shielding measures, 1 unit.

[0071] Yicheng ISW-4080 Thin-Film Pressure Distribution Sensor: Range: 50kPa, Thickness: 0.2mm, Number of Measurement Points: 6400, Sensing Area: 400*800mm, 1 sheet.

[0072] Yicheng ForceMapping membrane pressure analysis software: real-time sensor pressure cloud map display, supports exporting pressure cloud map data in image and Excel formats, and can analyze maximum and minimum pressure values ​​and force-time curves. 1 set.

[0073] Four analog signal channels: measurable signals: strain gauge, potentiometer, Pt100 temperature sensor, J / K / T / E / R / S type thermocouple sensor, voltage, 1 set.

[0074] 1 / 4 bridge strain gauge: resistance: 120Ω, strain coefficient: 2.0, dimensions: 120*150*5, cable length 11 meters, 1 piece.

[0075] PT100 platinum resistance sensor: measuring range: -100℃~400℃, accuracy: 0.1℃, single-axis direction, 1 unit.

[0076] PT100 platinum resistance signal amplifier: Output range: 0~5V, 1 unit.

[0077] (3) The results of this experiment are as follows:

[0078] Under the initial force of the hot press plate, the ForceMapping thin film pressure analysis software of Yicheng shows an uneven 2D blue cloud map display, with strain fluctuation range of -3.8 to -15 micro-strains and vibration fluctuation range of -0.015g to 0.001g.

[0079] When pressure is applied to the hot press plate, the pressure distribution image is uniform, and the white line area in the middle represents the gap between the hot press plates, which can be clearly distinguished.

[0080] By adjusting the color levels, the cloud map can be displayed with different color effects.

[0081] Figure 6 As shown, during the process of pressurization and heating, the deformation continuously increases.

[0082] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A multi-modal signal integration-based ForceMapping thin film pressure distribution testing system, characterized in that, include: The membrane pressure testing unit (1) consists of a ForceMapping membrane pressure acquisition unit, a ForceMapping membrane pressure distribution sensor and a ForceMapping membrane pressure analysis software. The ForceMapping membrane pressure acquisition unit is connected to the ForceMapping membrane pressure distribution sensor through a dedicated interface. The ForceMapping membrane pressure acquisition unit establishes a communication connection with the ForceMapping membrane pressure analysis software through an Ethernet interface. Analog channel unit (2), the analog channel unit (2) includes two sets of analog input interfaces and is integrated into the ForceMapping thin film pressure acquisition unit. The analog input interfaces are connected to the PT100 platinum resistance signal amplifier, displacement sensor, capacitive acceleration sensor and attitude tilt sensor. The digital input channel unit (3) includes two sets of digital input interfaces and is integrated into the ForceMapping thin film pressure acquisition unit. The digital input interfaces are connected to the strain signal amplifier and the thin film matrix modulator.

2. The Yicheng ForceMapping thin film pressure distribution testing system based on multimodal signal integration according to claim 1, characterized in that: The ForceMapping membrane pressure acquisition unit (1) in the membrane pressure testing unit supports multiple units connected together, uses Ethernet communication, and has a maximum communication distance of 200m.

3. The Yicheng ForceMapping thin film pressure distribution testing system based on multimodal signal integration according to claim 2, characterized in that: The front panel of the ForceMapping membrane pressure acquisition unit (1) in the membrane pressure testing unit is equipped with four sets of membrane sensors. The four sets of membrane sensors are respectively equipped with STG1, STG2, STG3 and STG4 interfaces for receiving pressure distribution signals from the ForceMapping membrane pressure distribution sensor. The ForceMapping membrane pressure acquisition unit is also equipped with two sets of analog input interfaces and two sets of digital input interfaces. The two sets of analog input interfaces are analog 1-2 interface and analog 3-4 interface. The two sets of digital input interfaces are digital 1-2 interface and digital 3-4 interface. The ForceMapping membrane pressure acquisition unit is also equipped with a power input interface, a power output interface, a ground terminal, an Ethernet interface and an indicator light interface.

4. The Yicheng ForceMapping thin film pressure distribution testing system based on multimodal signal integration according to claim 3, characterized in that: The ForceMapping membrane pressure acquisition unit (1) in the membrane pressure testing unit (1) is equipped with an independent power input interface for connecting to a power source; The grounding terminals of the thin-film matrix modulator, strain signal amplifier, and all sensors connected to analog and digital input interfaces are all connected to the grounding terminal of the ForceMapping thin-film pressure acquisition unit, forming a unified reference ground for the system.

5. The Yicheng ForceMapping thin film pressure distribution testing system based on multimodal signal integration according to claim 3, characterized in that: The front panel of the ForceMapping thin-film pressure distribution sensor in the thin-film pressure testing unit (1) is provided with four sets of output interfaces, namely 1L-65-1 and 1L-65-2 interfaces, 2L-66-1 and 2L-66-2 interfaces, 3L-65-1 and 3L-65-2 interfaces, and 4L-66-1 and 4L-66-2 interfaces, which are used to input pressure distribution signals to the ForceMapping thin-film pressure distribution sensor; among them, 1L-65-1 and 1L-65-2 interfaces are connected to STG1 interface, 2L-66-1 and 2L-66-2 interfaces are connected to STG2 interface, 3L-65-1 and 3L-65-2 interfaces are connected to STG3 interface, and 4L-66-1 and 4L-66-2 interfaces are connected to STG4 interface.

6. The Yicheng ForceMapping thin film pressure distribution testing system based on multimodal signal integration according to claim 1, characterized in that: The ForceMapping membrane pressure analysis software in the membrane pressure testing unit (1) runs on a PC and receives and displays two-dimensional / three-dimensional pressure cloud maps from the ForceMapping membrane pressure distribution sensor via Ethernet.

7. The Yicheng ForceMapping thin film pressure distribution testing system based on multimodal signal integration according to claim 1, characterized in that: The analog signal channel unit (2) contains four analog signal channels, namely two sets of analog signal input interfaces, which are used to measure strain, temperature, displacement, acceleration and tilt signals after conversion.

8. The Yicheng ForceMapping thin film pressure distribution testing system based on multimodal signal integration according to claim 7, characterized in that: In the analog channel unit (2), the PT100 platinum resistance is connected to the PT100 platinum resistance signal amplifier, and the PT100 platinum resistance signal amplifier is connected to the ForceMapping thin film pressure acquisition device through the analog input interface; the PT100 platinum resistance signal amplifier is used to convert the resistance change of the PT100 platinum resistance into a voltage signal. The displacement sensor is connected to the ForceMapping thin-film pressure acquisition unit via an analog input interface to measure the displacement of rod-type and laser-type components, and the output is a voltage signal. The capacitive accelerometer is connected to the ForceMapping thin-film pressure acquisition unit via an analog input interface to measure biaxial and triaxial acceleration signals, and outputs a voltage signal. The attitude tilt sensor is connected to the ForceMapping diaphragm pressure acquisition unit via an analog input interface to measure biaxial and triaxial tilt signals.

9. The Yicheng ForceMapping thin film pressure distribution testing system based on multimodal signal integration according to claim 1, characterized in that: In the digital quantity channel unit (3), the 1 / 4 bridge strain gauge and the full bridge strain gauge are connected to the strain signal amplifier, and the strain signal amplifier is connected to the ForceMapping thin film pressure acquisition device through the digital quantity 3-4 interface; the strain signal amplifier is used to amplify the weak signals of the 1 / 4 bridge strain gauge and the full bridge strain gauge and convert them into voltage signals.

10. The Yicheng ForceMapping thin film pressure distribution testing system based on multimodal signal integration according to claim 1, characterized in that: In the digital channel unit (3), the thin film matrix sensor is connected to the thin film matrix modulator, and the thin film matrix modulator is connected to the ForceMapping thin film pressure acquisition unit through the digital 1-2 interface. The thin film matrix modulator is used to modulate the multiple signals of the thin film matrix sensor into digital signals and output them as voltage signals.

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