Pressure sensor detection device

Abstract

The utility model relates to a pressure sensor detection device, relates to the field of sensor detection, and can improve the efficiency and precision of pressure sensor detection. The pressure sensor detection device comprises a pressure data acquisition module, an environmental parameter monitoring module and an error compensation module, the pressure data acquisition module and the environmental parameter monitoring module are respectively connected with the error compensation module; the pressure data acquisition module is used for sending an output signal of a pressure sensor to the error compensation module; the environment parameter monitoring module is used for collecting environment parameters corresponding to the environment where the pressure sensor is located and sending the environment parameters to the error compensation module; and the error compensation module is used for acquiring error compensation information corresponding to the environmental parameters, and adjusting the output signal by using the error compensation information to obtain a detection result of the pressure sensor.

Description

Technical Field

[0001] This application relates to the field of sensor detection, and particularly to a pressure sensor detection device. Background Art

[0002] Pressure sensors are widely used in fields such as water conservancy and hydropower, petrochemical industry, medical devices, and airtightness detection. In the field of airtightness detection, a leak detector first fills a product to be tested with a certain pressure of gas using compressed gas, and then uses a highly reliable pressure sensor to monitor the pressure change within a certain pressure holding time to determine whether the product has leaks.

[0003] As the core component of a leak detector, high-quality requirements are imposed on the selection of the pressure sensor. Therefore, the sensor needs to be strictly tested before use to ensure its performance and monitoring ability. The pressure sensor detection devices in the prior art use a multimeter to detect a single pressure sensor, with low detection efficiency and limited detection accuracy. Summary of the Utility Model

[0004] Based on this, it is necessary to provide a pressure sensor detection device that can improve detection efficiency and detection accuracy for the above problems. The device includes: a pressure data acquisition module, an environmental parameter monitoring module, and an error compensation module; the pressure data acquisition module and the environmental parameter monitoring module are respectively connected to the error compensation module;

[0005] The pressure data acquisition module is used to send the output signal of the pressure sensor to the error compensation module;

[0006] The environmental parameter monitoring module is used to collect the environmental parameters corresponding to the environment where the pressure sensor is located and send the environmental parameters to the error compensation module;

[0007] The error compensation module is used to obtain error compensation information corresponding to the environmental parameters, and use the error compensation information to adjust the output signal to obtain the detection result of the pressure sensor.

[0008] In one embodiment, the pressure data acquisition module includes a plurality of acquisition cards, each pressure sensor is connected to one acquisition card, and the acquisition card is used to collect the output signal of the pressure sensor connected to the acquisition card.

[0009] In one embodiment, the acquisition card is provided with a programmable gain amplifier for amplifying the output signal of the pressure sensor.

[0010] In one embodiment, the acquisition card is provided with a plurality of data interfaces, and each pressure sensor is connected to the acquisition card through one data interface.

[0011] In one embodiment, the pressure data acquisition module includes a switch, and the switch is connected to a plurality of the acquisition cards through a network interface. The switch is configured to transmit the output signals collected by each of the acquisition cards to the error compensation module.

[0012] In one embodiment, the switch and the industrial control computer are connected through Ethernet.

[0013] In one embodiment, the acquisition card is provided with an analog-to-digital converter for converting the output signal in the form of an analog signal of the pressure sensor into the output signal in the form of a digital signal.

[0014] In one embodiment, the pressure sensor is connected to the acquisition card by wire, and the pressure sensor transmits the output signal to the acquisition card through the connected line.

[0015] In one embodiment, the environmental parameter monitoring module includes an atmospheric pressure sensor, and the atmospheric pressure sensor is configured to collect the atmospheric pressure parameter corresponding to the environment where the pressure sensor is located and send the atmospheric pressure parameter to the error compensation module connected to the atmospheric pressure sensor.

[0016] In one embodiment, the environmental parameter monitoring module includes a temperature and humidity sensor, and the temperature and humidity sensor is configured to collect the temperature parameter and the humidity parameter corresponding to the environment where the pressure sensor is located and send the temperature parameter and the humidity parameter to the error compensation module connected to the temperature and humidity sensor.

[0017] In the above pressure sensor detection device, it includes a pressure data acquisition module, an environmental parameter monitoring module, and an error compensation module; the pressure data acquisition module and the environmental parameter monitoring module are respectively connected to the error compensation module; the pressure data acquisition module is used to send the output signal of the pressure sensor to the error compensation module; the environmental parameter monitoring module is used to collect the environmental parameters corresponding to the environment where the pressure sensor is located and send the environmental parameters to the error compensation module; the error compensation module is used to obtain the error compensation information corresponding to the environmental parameters and use the error compensation information to adjust the output signal to obtain the detection result of the pressure sensor. In this application, by adding an environmental parameter monitoring module to the pressure sensor detection device, the environmental parameters of the environment where the pressure sensor is located can be monitored. By transmitting the real-time collected environmental data to the error compensation module, the detection error generated by the pressure sensor due to environmental changes can be effectively corrected in a timely manner, fully considering the influence of the sensor working environment on the detection accuracy. By setting multiple acquisition cards, multiple sensors can be detected simultaneously, and through the mutual cooperation of multiple modules, the automatic detection of the pressure sensor is realized. This device can obtain a more reliable pressure sensor detection result, significantly improving the detection efficiency and detection accuracy of the pressure sensor. Brief Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a schematic diagram of the modules of the pressure sensor detection device in one embodiment;

[0020] Figure 2a It is a schematic structural diagram of the pressure sensor detection device in one embodiment;

[0021] Figure 2b It is a schematic structural diagram of the pressure sensor detection device in another embodiment.

[0022] Description of the Reference Numerals:

[0023] Pressure data acquisition module 101, environmental parameter monitoring module 102, error compensation module 103, atmospheric pressure sensor 201, temperature and humidity sensor 202, acquisition card 203, programmable gain amplifier 204, data interface 205, switch 206, network interface 207, industrial control computer 208, analog-to-digital converter 209, connection line 210. Detailed Embodiments

[0024] To facilitate the understanding of the present application, the present application will be described more comprehensively below with reference to the relevant accompanying drawings. Embodiments of the present application are shown in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present application more thorough and comprehensive.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0026] It can be understood that the terms "first", "second", etc. used in this application can be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish a first element from another element. For example, without departing from the scope of this application, a first resistor can be referred to as a second resistor, and similarly, a second resistor can be referred to as a first resistor. Both the first resistor and the second resistor are resistors, but they are not the same resistor.

[0027] It can be understood that for "connection" in the following embodiments, if there is an electrical signal or data transfer between the connected circuits, modules, units, etc., it should be understood as "electrical connection", "communication connection", etc.

[0028] It can be understood that "at least one" means one or more, and "a plurality" means two or more. "At least a part of an element" means a part or all of the element.

[0029] As used herein, the singular forms "a", "an", and "the" may also include the plural forms unless the context clearly dictates otherwise. It should also be understood that the terms "comprise / include" or "have" etc. specify the presence of the stated features, wholes, steps, operations, components, parts, or combinations thereof, but do not preclude the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof. At the same time, the term "and / or" used in this specification includes any and all combinations of the related listed items.

[0030] In an exemplary embodiment, as Figure 1 shown, a pressure sensor detection device is provided, including: a pressure data acquisition module 101, an environmental parameter monitoring module 102, and an error compensation module 103; the pressure data acquisition module 101 and the environmental parameter monitoring module 102 are respectively connected to the error compensation module 103.

[0031] The pressure data acquisition module 101 is used to send the output signal of the pressure sensor to the error compensation module 103.

[0032] Optionally, the pressure data acquisition module 101 is responsible for collecting the output signal of the pressure sensor. It can receive the output signals of pressure sensors of the same model or different models. The pressure data acquisition module 101 sends the output signal of the pressure sensor to the error compensation module 103 of the system.

[0033] The environmental parameter monitoring module 102 is used to collect the environmental parameters corresponding to the environment where the pressure sensor is located and send the environmental parameters to the error compensation module 103.

[0034] Optionally, the environmental parameter monitoring module 102 is used to monitor the key parameters in the environment where the pressure sensor is located. This module can include different types of environmental sensors for real-time collection of environmental data. At the same time, the specific implementation of the environmental parameter monitoring module 102 can adopt various methods. For example, it can adopt an integrated sensor array or a distributed sensor network. The data collected by the environmental parameter monitoring module 102 will be transmitted to the error compensation module 103.

[0035] The error compensation module 103 is used to obtain the error compensation information corresponding to the environmental parameters, and use the error compensation information to adjust the output signal to obtain the detection result of the pressure sensor.

[0036] Optionally, the error compensation module 103 is responsible for compensating and adjusting the output signal of the pressure sensor according to the environmental parameters. The error compensation module 103 has a built-in calculation unit, which can use the environmental parameters to correct the input pressure signal. The corrected signal is the detection result of the pressure sensor, which is used to reflect the actual pressure situation. The error compensation module 103 can be configured to support multiple compensation algorithms. For example, it can be an existing compensation algorithm that compensates the pressure detection result according to the environmental parameters. In some examples, the error compensation module 103 can be configured with developed error compensation software, and the error compensation software performs error compensation according to the corresponding compensation algorithm. In some other embodiments, the user can select a suitable algorithm according to the specific application scenario or develop an adapted error compensation algorithm by themselves. In addition, the error compensation module 103 can also integrate a self-learning function to automatically adjust the compensation model to adapt to long-term environmental changes.

[0037] In this embodiment, the pressure sensor detection device includes a pressure data acquisition module 101, an environmental parameter monitoring module 102, and an error compensation module 103; the pressure data acquisition module 101 and the environmental parameter monitoring module 102 are respectively connected to the error compensation module 103; the pressure data acquisition module 101 is configured to send the output signal of the pressure sensor to the error compensation module 103; the environmental parameter monitoring module 102 is configured to collect the environmental parameters corresponding to the environment where the pressure sensor is located and send the environmental parameters to the error compensation module 103; the error compensation module 103 is configured to obtain the error compensation information corresponding to the environmental parameters, and use the error compensation information to adjust the output signal to obtain the detection result of the pressure sensor. In this application, by adding the environmental parameter monitoring module 102 to the pressure sensor detection device, the environmental parameters of the environment where the pressure sensor is located can be monitored. By transmitting the real-time collected environmental data to the error compensation module 103, the detection error of the pressure sensor caused by environmental changes can be effectively corrected in a timely manner, fully considering the influence of the sensor working environment on the detection accuracy. By setting multiple acquisition cards, multiple sensors can be detected simultaneously, and through the mutual cooperation of multiple modules, the automatic detection of the pressure sensor is realized. This device can obtain a more reliable detection result of the pressure sensor, significantly improving the detection efficiency and detection accuracy of the pressure sensor.

[0038] In some embodiments, such as Figure 2a shown, the environmental parameter monitoring module 102 includes an atmospheric pressure sensor 201. The atmospheric pressure sensor 201 is configured to collect the atmospheric pressure parameter in the environment where the pressure sensor is located and send the atmospheric pressure parameter to the error compensation module 103 connected to the atmospheric pressure sensor 201.

[0039] Optionally, the atmospheric pressure sensor 201 monitors the atmospheric pressure value in the environment, converts this parameter into an electrical signal, and sends the data to the error compensation module 103 through a transmission line connection. The atmospheric pressure sensor 201 can respond to the change of atmospheric pressure in real time to ensure that the parameter received by the error compensation module 103 is current and accurate.

[0040] In this embodiment, the atmospheric pressure sensor 201 collects the atmospheric pressure parameter in the environment in real time and sends the obtained parameter to the error compensation module 103, which can effectively reduce the measurement error of the pressure sensor caused by the change of atmospheric pressure.

[0041] In one embodiment, such as Figure 2a shown, the environmental parameter monitoring module 102 includes a temperature and humidity sensor 202. The temperature and humidity sensor 202 is configured to collect the temperature parameter and humidity parameter corresponding to the environment where the pressure sensor is located and send the temperature parameter and humidity parameter to the error compensation module 103 connected to the temperature and humidity sensor 202.

[0042] Optionally, the temperature and humidity sensor 202 detects the temperature and humidity in the environment and converts these parameters into corresponding electrical signals. The electrical signal is sent to the error compensation module 103 through a transmission line. The temperature and humidity sensor 202 can react to the changes in temperature and humidity in real time to ensure that the changes in the environmental conditions of the pressure sensor can be reflected in a timely manner, so as to provide accurate real-time data for the error compensation module 103.

[0043] In this embodiment, the temperature and humidity sensor 202 monitors the temperature and humidity in the environment and sends the obtained parameters to the error compensation module 103, which can effectively reduce the influence of temperature and humidity on the detection results of the pressure sensor.

[0044] In one embodiment, as Figure 2a shown, the pressure data acquisition module 101 includes a plurality of acquisition cards 203, and each pressure sensor is connected to an acquisition card 203. The acquisition card 203 is used to acquire the output signal of the pressure sensor connected to the acquisition card 203.

[0045] In this embodiment, the pressure data acquisition module 101 is composed of a plurality of acquisition cards 203, which collect and transmit the output signals of the pressure sensors to the error compensation module 103, enabling the device to process the signals from different pressure sensors in parallel and adapt to a variety of application scenarios.

[0046] In one embodiment, as Figure 2a shown, the acquisition card 203 is provided with a programmable gain amplifier 204 for amplifying the output signal of the pressure sensor.

[0047] Optionally, the signal output by the pressure sensor is relatively weak. The programmable gain amplifier 204 is used to increase the signal strength so that the subsequent error compensation module 103 can accurately read and analyze it. The programmable gain amplifier 204 can adjust the amplification factor of the output signal of the pressure sensor according to the output signal strength requirements of different pressure sensors, so as to adapt to a variety of different sensor types.

[0048] In this embodiment, the programmable gain amplifier 204 in the acquisition card 203 amplifies the output signal of the pressure sensor to ensure that the system can accurately process signals of different strengths and improve the overall detection accuracy. Its programmable feature enhances the flexibility of the system, enabling the device to adapt to a variety of sensors and application scenarios.

[0049] In one embodiment, as Figure 2a shown, the acquisition card 203 is provided with a plurality of data interfaces 205, and each pressure sensor is connected to the acquisition card 203 through a data interface 205.

[0050] Optionally, the acquisition card 203 can simultaneously receive output signals from multiple pressure sensors.

[0051] In this embodiment, each pressure sensor is connected to the acquisition card 203 through a separate data interface 205 to ensure the independence and stability of signal transmission. The design of the data interface 205 enables the acquisition card 203 to flexibly adapt to different numbers of pressure sensors, meeting the requirements of multi-sensor synchronous measurement.

[0052] In one embodiment, as Figure 2a shown, the pressure data acquisition module 101 includes a switch 206. The switch 206 is connected to multiple acquisition cards 203 through a network interface 207. The switch 206 is used to transmit the output signals collected by each acquisition card 203 to the error compensation module 103.

[0053] Optionally, the pressure data acquisition module 101 is designed to include a switch 206, which is connected to multiple acquisition cards 203 through a network interface 207. The communication networking is convenient, and it can be flexibly loaded and unloaded, and the number of channels can be freely set. After each acquisition card 203 collects the output signals from the pressure sensors it is connected to, it will send the signals to the switch 206 through the network interface 207. The switch 206 receives the signals from multiple acquisition cards 203 and centrally transmits these signals to the error compensation module 103 for further processing.

[0054] In this embodiment, using the switch 206 as the center of data transmission significantly improves the communication efficiency and data management ability of the system. Especially in the case of multi-sensor parallel operation, it can ensure that the data of all sensors can be processed in a timely and accurate manner.

[0055] In one embodiment, as Figure 2a shown, the switch 206 is connected to the industrial control computer 208 through Ethernet.

[0056] Optionally, the industrial control computer 208 is set in the error compensation module 103 and serves as the control and data processing unit of the device, receiving the data transmitted by the switch 206 through Ethernet. After the industrial control computer 208 receives the signal data from the switch 206, it combines environmental parameters (such as one or more of temperature, humidity, atmospheric pressure, etc.) to correct the output signals of the pressure sensors. The corrected data can be used for display, recording, or further analysis and processing. At the same time, the industrial control computer 208 can schedule the working states of each acquisition card 203, monitor the operation of the system, and adjust the system parameters when necessary to ensure the accuracy of the data and the stability of the system.

[0057] In this embodiment, the connection between the switch 206 and the industrial computer 208 uses Ethernet technology for data transmission. The Ethernet connection provides a high-speed and stable communication channel between the switch 206 and the industrial computer 208, enabling the switch 206 to reliably transmit the output signals of the pressure sensors collected from each acquisition card 203 to the industrial computer 208 for further processing.

[0058] In one embodiment, as Figure 2a shown, the acquisition card 203 is provided with an analog-to-digital converter 209 for converting the output signal in the form of an analog signal of the pressure sensor into an output signal in the form of a digital signal.

[0059] Optionally, the analog-to-digital converter 209 precisely samples the analog signal of the pressure sensor, quantizes it into a digital signal, and transmits it to the error compensation module 103 for storage and processing. The accuracy (such as the number of bits) of the analog-to-digital converter 209 can affect the resolution of the converted digital signal.

[0060] In this embodiment, the setting of the analog-to-digital converter 209 enables the analog signal of the pressure sensor to be converted into a digital signal in a high-precision and highly reliable manner. This process ensures the integrity and accuracy of the output signal of the pressure sensor, and at the same time provides a reliable basis for the subsequent error compensation and data processing of the system.

[0061] In one embodiment, as Figure 2a shown, the pressure sensor is connected to the acquisition card 203 in a wired manner, and the pressure sensor transmits the output signal to the acquisition card 203 through the connection line 210.

[0062] In this embodiment, the wired connection method ensures the high-fidelity transmission of the output signal of the pressure sensor, enabling the acquisition card 203 to receive the original signal without interference. This connection method is suitable for pressure detection systems that require high precision and high reliability, and at the same time provides strong support for the anti-interference performance and data accuracy of the system.

[0063] In one embodiment, as Figure 2a shown, the hardware architecture of the pressure sensor detection device is presented, which specifically includes a pressure sensor, an acquisition card 203, a switch 206, an industrial computer 208, an atmospheric pressure sensor 201, and a temperature and humidity sensor 202. The pressure sensor is connected to the acquisition card 203 in a wired manner, the acquisition card 203 is connected to the switch 206 through a network interface 207, the acquisition card 203 is configured with an analog-to-digital converter 209 (A / D) and a programmable gain amplifier 204, the switch 206 is connected to the industrial computer 208 through Ethernet, and the atmospheric pressure sensor 201 and the temperature and humidity sensor 202 are connected to the industrial computer 208 through independent interfaces. The independent interfaces can be in the form of a wireless network or a physical wired form.

[0064] In some embodiments, applied to Figure 2a In the shown pressure sensor detection device structure, the acquisition card 203 is initialized and networked. The acquisition card 203 is initialized one by one. Only one acquisition card 203 is connected. After power-on, the industrial control computer 208 sends a search instruction from the network port through its data acquisition and analysis software using the UDP protocol to detect the acquisition card 203. After receiving the search instruction, the acquisition card 203 reports its network information such as its own IP address, port number, and ID number to the industrial control computer 208. The industrial control computer 208 configures the acquisition card 203, including allocating a new IP address and port number, and saves these configuration information in the acquisition card 203.

[0065] After the initialization of one acquisition card 203 is completed, it is disconnected, and other acquisition cards 203 are connected and configured in sequence, repeating the above steps until all acquisition cards 203 have completed independent network configurations. Each acquisition card 203 is assigned an independent IP address, and it is ensured that these addresses are in the same network segment and consistent with the network configuration of the industrial control computer 208.

[0066] After all the acquisition cards 203 are initialized, they are connected to the switch 206 through the RJ45 interface. The switch 206, as the center of data transmission, uniformly transmits the digital signals collected by all the acquisition cards 203 to the industrial control computer 208 through the Ethernet. When all the acquisition cards 203 are successfully connected to the switch 206 and communication is established, the network configuration is completed, and the entire pressure sensor detection device can enter the normal working state.

[0067] In this system, the signal transmission between the pressure sensor and the acquisition card 203 is realized through a wired connection. An analog-to-digital converter 209 (A / D) is provided in the acquisition card 203 to convert the analog signal of the pressure sensor into a digital signal. The digital signals collected by the acquisition card 203 are transmitted to the industrial control computer 208 through the switch 206, and the industrial control computer 208 processes the signals through the data acquisition and analysis software. The atmospheric pressure sensor 201 and the temperature and humidity sensor 202 in the environmental parameter monitoring module 102 are directly connected to the industrial control computer 208 to provide real-time environmental parameters for signal correction of the error compensation module 103 to ensure the accuracy and reliability of the final pressure detection result.

[0068] In this embodiment, through the above configuration, the functions of efficient and stable multi-channel pressure data acquisition and processing are realized, and it can operate reliably in a complex industrial environment to meet the requirements of high-precision pressure detection.

[0069] In one embodiment, applied to Figure 2aDuring the zero-signal detection process, the device automatically sets the test parameters related to the pressure sensor through the industrial control computer 208. These parameters can include the sampling interval, sampling frequency, detection duration, and the allowable voltage range. This step ensures the pertinence and effectiveness of the test and is applicable to different types of pressure sensors.

[0070] Next, the industrial control computer 208 automatically enables the corresponding detection channels according to the number of pressure sensors to be detected. Each acquisition card 203 in the pressure data acquisition module 101 is usually connected to multiple sensor channels, and the unused channels can be automatically closed to concentrate the device resources and improve the detection efficiency.

[0071] When the test starts, the industrial control computer 208 sends acquisition instructions to each acquisition card 203 in the pressure data acquisition module 101 through the switch 206. The device not only acquires the signal values of the pressure sensors on each channel but also simultaneously acquires the data of the atmospheric pressure sensor 201 and the temperature and humidity sensor 202 in the environmental parameter monitoring module 102. In some embodiments, the device can connect a barcode scanner before the test and sequentially scan the barcodes of the pressure sensors to bind the barcodes with the detection results for subsequent traceability of the results.

[0072] Whenever the acquisition card 203 in the pressure data acquisition module 101 receives an acquisition instruction from the industrial control computer 208, it automatically reads the voltage value after analog-to-digital conversion (A / D) of the connected pressure sensor 209. At the same time, the acquisition card 203 also sends its network identity information such as its ID number to the industrial control computer 208 for the device to identify and process the signal data of each sensor.

[0073] During the test process, the industrial control computer 208 continuously receives and real-time processes the voltage values of the pressure sensors from the acquisition card 203. These data are automatically plotted as curves and displayed under the same coordinate axis system to facilitate comparison of the signal consistency of multiple pressure sensors. At the same time, the industrial control computer 208 also automatically displays the current atmospheric pressure 201 and temperature and humidity data 202 and plots the corresponding curves. The device can further record the maximum and minimum values of each pressure sensor during the entire test process for further analysis.

[0074] When the set detection time ends, the industrial control computer 208 will automatically analyze all the collected data to determine whether the voltage values of each pressure sensor are within the allowable range. If there is a situation where the set range is exceeded, the device will automatically determine that the pressure sensor is unqualified and save all the test results. These results include the test date, time, ID number of the pressure sensor, barcode, and the corresponding atmospheric pressure 201 and temperature and humidity data 202 to form a complete detection report to ensure the traceability of the data and the integrity of the analysis.

[0075] In this embodiment, through the above steps, the pressure sensor detection device can accurately and systematically perform zero-point detection of the pressure sensor, ensuring the reliability and traceability of the results and meeting the high-precision detection requirements.

[0076] In one embodiment, for the Figure 2b pressure change characteristic detection process, the device automatically sets test parameters through the industrial control computer 208 according to the model of the pressure sensor to be detected. These parameters include the range of the sensor, the pressure adjustment step, and the allowable voltage range for each sampling point. Specifically, the pressure adjustment step can be set to 10% to achieve a stepped increase or decrease, ensuring the accuracy of the test.

[0077] Next, the industrial control computer 208 automatically enables the detection channels corresponding to the number of pressure sensors to be detected. Each acquisition card 203 in the pressure data acquisition module 101 is responsible for signal acquisition and transmission through a wired connection with multiple pressure sensors. Unused detection channels can be automatically closed to optimize device resources.

[0078] At the start of the test, the industrial control computer 208 sends a pressure setting instruction to the electronic control pressure regulating unit, and the target pressure point is automatically adjusted according to the preset test parameters. At the same time, the industrial control computer 208 can also scan the barcodes of each pressure sensor in sequence through a barcode scanner and bind these barcodes to the test results for subsequent data traceability.

[0079] When the electronic control pressure regulating unit receives the instruction from the industrial control computer 208, the pressure regulating unit automatically adjusts and outputs the set target pressure to each connected pressure sensor and the pressure reference table. At this time, the industrial control computer 208 obtains the current pressure value in real time through the connection with the pressure reference table, and continues to read the voltage values of each pressure sensor, as well as environmental parameters such as atmospheric pressure and temperature and humidity, after the pressure is stable.

[0080] The device automatically enters the next pressure point for testing according to the preset step until all pressure points in the forward stroke are tested. Then, starting from the highest pressure point, the device decreases in sequence according to the set step and repeats the same test process until all pressure points in the reverse stroke are tested.

[0081] During the entire test process, the industrial control computer 208 automatically analyzes whether the voltage value at each sampling point is within the allowable range to determine whether the pressure sensor is qualified. The test results, including the date, time, ID number of the pressure sensor, barcode, and atmospheric pressure and temperature and humidity data, are automatically saved to form a complete test report to ensure the traceability of the results and the accuracy of the analysis.

[0082] In this embodiment, through the above steps, the pressure sensor detection device can accurately and systematically complete the detection of the pressure change characteristics, ensuring the reliability and high precision of the test results.

[0083] In the description of this specification, the descriptions referring to the terms "some embodiments", "other embodiments", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example.

[0084] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0085] The above-described embodiments only represent several implementation manners of the present application. The descriptions are relatively specific and detailed, but should not be construed as a limitation on the scope of the present application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A pressure sensor detection device, characterized in that, Comprising: A pressure data acquisition module, an environmental parameter monitoring module, and an error compensation module; The pressure data acquisition module and the environmental parameter monitoring module are respectively connected to the error compensation module; The pressure data acquisition module is configured to send the output signal of the pressure sensor to the error compensation module; The environmental parameter monitoring module is configured to collect the environmental parameters corresponding to the environment where the pressure sensor is located, and send the environmental parameters to the error compensation module; The error compensation module is configured to obtain the error compensation information corresponding to the environmental parameters, and use the error compensation information to adjust the output signal to obtain the detection result of the pressure sensor.

2. The pressure sensor detection device according to claim 1, characterized in that, The pressure data acquisition module includes a plurality of acquisition cards, each pressure sensor is connected to one acquisition card, and the acquisition card is configured to collect the output signal of the pressure sensor connected to the acquisition card.

3. The pressure sensor detection device according to claim 2, wherein The acquisition card is provided with a programmable gain amplifier for amplifying the output signal of the pressure sensor.

4. The pressure sensor detection device according to claim 2, characterized in that, The acquisition card is provided with a plurality of data interfaces, and each pressure sensor is connected to the acquisition card through one data interface.

5. The pressure sensor detection device according to claim 2, wherein The pressure data acquisition module includes a switch, the switch is connected to a plurality of acquisition cards through network interfaces, and the switch is configured to transmit the output signals collected by each acquisition card to the error compensation module.

6. The pressure sensor detection device according to claim 5, characterized in that, The switch and the industrial control computer are connected through Ethernet.

7. The pressure sensor detection device according to claim 2, wherein, The acquisition card is provided with an analog-to-digital converter for converting the output signal in the analog signal form of the pressure sensor into the output signal in the digital signal form.

8. The pressure sensor detection device according to claim 2, characterized in that, The pressure sensor and the acquisition card are connected by wire, and the pressure sensor transmits the output signal to the acquisition card through the connected line.

9. The pressure sensor detection device according to claim 1, characterized in that, The environmental parameter monitoring module includes an atmospheric pressure sensor, and the atmospheric pressure sensor is configured to collect the atmospheric pressure parameters corresponding to the environment where the pressure sensor is located, and send the atmospheric pressure parameters to the error compensation module connected to the atmospheric pressure sensor.

10. The pressure sensor detection device according to claim 1, characterized in that, The environmental parameter monitoring module includes a temperature and humidity sensor, and the temperature and humidity sensor is configured to collect the temperature parameter and the humidity parameter corresponding to the environment where the pressure sensor is located, and send the temperature parameter and the humidity parameter to the error compensation module connected to the temperature and humidity sensor.

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