Displacement sensor system

Abstract

The utility model provides a displacement sensor system. The displacement sensor system comprises a conduit, a displacement sensor module and a processor, the displacement sensor module comprises a plurality of sensor units, each sensor unit is provided with a displacement pulley and a motor, and the output end of each motor is connected with the enabling end of the corresponding displacement pulley; the sensor unit is further provided with a cycle timer, the control end of the cycle timer is connected with the receiving end of the motor, and the cycle timer is used for generating a cruise detection instruction and sending the cruise detection instruction to the motor. The processor is in communication connection with the displacement sensor module. Through the displacement wheel changing and cycle timer of the displacement sensor system in the embodiment of the invention, the sensor unit can measure data of multiple positions in a cruise mode, the range and effect of sensor data acquisition can be improved, meanwhile, the investment of the sensor can be reduced, the measurement cost is reduced, and meanwhile, through a guide pipe mode, the measurement accuracy is improved. The requirement for measuring holes is not high, the cost of the drill hole and the inclinometer pipe can be greatly reduced, and meanwhile the installation process is simplified.

Description

Technical Field

[0001] The present disclosure relates to the field of sensor technology, and in particular to a displacement sensor system. Background Art

[0002] With the continuous development of modern engineering construction, especially the ever-increasing scale of infrastructure such as dams, bridges, and tunnels, the safety and stability of engineering structures have gradually become a focus of attention. In these engineering projects, displacement monitoring technology is widely used to monitor structural deformation in real time to ensure the safe operation of engineering structures. Existing displacement monitoring technologies mostly use traditional single-point displacement sensors, such as optical sensors, laser sensors, strain gauges, and displacement meters. These single-point sensors usually require the installation of multiple devices in multiple locations for monitoring, resulting in complex equipment layout, high costs, and timeliness issues during data acquisition and processing. Therefore, there are certain limitations in monitoring accuracy and coverage. Traditional monitoring systems mostly rely on manual operations for data collection, processing, and analysis, which is labor-intensive and inefficient, and is easily affected by human factors. Utility Model Content

[0003] The present disclosure aims to solve one of the technical problems in the related art at least to a certain extent.

[0004] To this end, one object of the present disclosure is to provide a displacement sensor system.

[0005] To achieve the above-mentioned purpose, the first aspect of the present disclosure proposes a displacement sensor system, including: a catheter, a displacement sensor module and a processor; the catheter is installed in a measuring hole of the object to be measured, and the displacement sensor module is arranged in the catheter; the displacement sensor module includes multiple sensor units, each of which is provided with a displacement pulley and a motor, and the output end of the motor is connected to the enable end of the displacement pulley; the sensor unit is also provided with a cycle timer, and the control end of the cycle timer is connected to the receiving end of the motor for generating a cruise detection instruction and sending it to the motor; the processor and the displacement sensor module are communicatively connected.

[0006] According to one embodiment of the present disclosure, the sensor units are arranged in a preset array within the catheter.

[0007] According to one embodiment of the present disclosure, the sensor unit includes one or more of a temperature sensor and a tilt sensor.

[0008] According to one embodiment of the present disclosure, a return spring is provided at the connection between the displacement pulley and the sensor unit.

[0009] According to one embodiment of the present disclosure, the catheter is provided with a slideway that slides in cooperation with the displacement pulley.

[0010] According to one embodiment of the present disclosure, the catheter is made of PVC.

[0011] According to one embodiment of the present disclosure, the communication connection between the processor and the displacement sensor is optical fiber communication.

[0012] According to one embodiment of the present disclosure, the length of the sensor unit is 500 mm or 1000 mm.

[0013] According to one embodiment of the present disclosure, the displacement sensor module further includes: a timing unit, wherein the timing unit is configured to generate a wake-up instruction after a preset time is reached, and send the wake-up instruction to the sensor unit.

[0014] According to one embodiment of the present disclosure, the sensor unit switches from a sleep state to an enabled state after receiving the wake-up instruction.

[0015] Through the displacement wheel change and cycle timer of the displacement sensor system in the embodiment of the present disclosure, the sensor unit can measure data at multiple positions in a cruising manner, which can improve the range and effect of sensor data acquisition, while reducing the investment in sensors and lowering the measurement cost. At the same time, through the form of a catheter, the requirements for the measurement hole are not high, which can greatly reduce the cost of drilling and inclinometer casings, and simplify the installation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of a displacement sensor system according to one embodiment of the present disclosure;

[0017] Figure 2 is a schematic diagram of a preset array according to one embodiment of the present disclosure;

[0018] Figure 3 This is a schematic structural diagram of a displacement sensor system according to one embodiment of the present disclosure;

[0019] Figure 4 Schematic diagram of the structure of a displacement sensor module according to one embodiment of the present disclosure. DETAILED DESCRIPTION

[0020] The following describes in detail embodiments of the present disclosure, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present disclosure, and should not be construed as limiting the present disclosure.

[0021] The acquisition, storage, use, and processing of data in this disclosed technical solution comply with the relevant provisions of relevant laws and regulations.

[0022] It should be noted that in the embodiments of this application, certain software, components, models and other existing solutions in the industry may be mentioned. They should be considered as exemplary. Their purpose is only to illustrate the feasibility of implementing the technical solution of this application, but it does not mean that the applicant has or will necessarily use the solution.

[0023] Figure 1 FIG. 1 is a schematic structural diagram of a displacement sensor system according to an embodiment of the present disclosure. Figure 1 As shown, the displacement sensor system includes: a catheter 110 , a displacement sensor module 120 and a processor 130 .

[0024] The catheter 110 is installed in a measuring hole of the object to be measured, and the displacement sensor module 120 is disposed in the catheter 110 .

[0025] It should be noted that the objects to be measured can be of various types and are not limited here. For example, the objects to be measured can be dams, mines, etc. The depth, angle, and size of the measurement hole can be limited according to actual measurement needs and are not set here. For example, the depth of the measurement hole can be 10 meters, the angle can be 90°, and the diameter can be 30 mm.

[0026] It should be noted that, through the form of the catheter 110, compared with the guide groove type inclinometer casing in the current technology, the catheter 110 in the embodiment of the present disclosure has low requirements for the measuring hole, which can greatly reduce the cost of drilling and inclinometer casing, and simplify the installation process.

[0027] The displacement sensor module 120 includes a plurality of sensor units. Each sensor unit is provided with a displacement pulley and a motor. The output end of the motor is connected to the enabling end of the displacement pulley.

[0028] The number of sensor units can be limited according to actual design requirements. In one possible implementation, the sensor unit can be manually inserted into a designated operating position of the catheter, or a pre-set operating position can be set for the sensor unit, and the sensor unit can automatically move to the designated operating position.

[0029] It should be noted that Figure 1 The arrangement of the sensor units in the displacement sensor module 120 is only an example, and the specific arrangement can be defined according to actual design requirements.

[0030] The sensor unit is also provided with a cycle timer, the control end of the cycle timer is connected to the receiving end of the motor, and is used to generate a cruise detection instruction and send it to the motor.

[0031] It should be noted that the motor can determine the cruise cycle and length according to the cruise detection instruction, so that the sensor unit can measure data at multiple positions by cruising, which can improve the scope and effect of sensor data collection, and at the same time reduce the investment in sensors and reduce measurement costs.

[0032] The processor 130 is in communication with the displacement sensor.

[0033] It should be noted that the processor 130 in the embodiment of the present disclosure can be set inside the catheter 110 or outside the catheter 110. The processor 130 can be of various types, for example, it can be a terminal or computer with processing capabilities, or it can be a cloud server with processing capabilities.

[0034] In the embodiment of the present disclosure, the processor 130 is used to store and analyze data collected by the displacement sensor module 120, and may also issue instructions to the displacement sensor module 120 to control the working state of the displacement sensor module 120, etc.

[0035] In the embodiment of the present disclosure, the communication between the processor 130 and the displacement sensor may be wired communication or wireless communication.

[0036] In one possible implementation, the displacement sensor module 120 may be provided with a wireless data transmission device, and the processor 130 may be provided with a matching wireless data transmission device, thereby enabling wireless communication between the processor 130 and the displacement sensor.

[0037] Through the displacement wheel change and cycle timer of the displacement sensor system in the embodiment of the present disclosure, the sensor unit can measure data at multiple positions in a cruising manner, which can improve the range and effect of sensor data acquisition, while reducing the investment in sensors and lowering the measurement cost. At the same time, through the form of a catheter, the requirements for the measurement hole are not high, which can greatly reduce the cost of drilling and inclinometer casings, and simplify the installation process.

[0038] The exact position of each point along the borehole axis can be obtained based on the calculation results of the entire hole. Multiple observations can determine the location, size and direction of the displacement inside the object to be measured.

[0039] In one possible implementation, the catheter 110 may be made of PVC.

[0040] In the embodiment of the present disclosure, the sensor units are arranged in a preset array within the catheter 110 .

[0041] It should be noted that the preset array can be set according to actual design needs and actual measurement needs, and no limitation is made here. For example, the preset array can be to evenly arrange the sensor units according to a set distance. The preset array can also be to set corresponding sensor units according to a preset depth, for example, to set sensor units at 3m, 5m, and 9m of the catheter 110. For example, Figure 2 The preset array shown.

[0042] In the embodiment of the present disclosure, the sensor unit is one or more of a temperature sensor and an inclination sensor, which is used to collect temperature data and angle data. For example, the inclination sensor can be an SCC2230-E02 three-axis gyroscope acceleration sensor.

[0043] It's important to note that to improve tilt angle measurement accuracy, the current tilt angle estimation incorporates temperature data collected by a temperature sensor and processes it using a regression algorithm. Specifically, the real-time temperature value collected by the temperature sensor is used as input, and a linear regression algorithm is used to calculate the tilt angle compensation value, resulting in a more accurate tilt angle estimation result.

[0044] In one possible implementation, the processor 130 inside the sensor can collect tilt data and temperature data in real time and perform temperature compensation in real time to maintain the accuracy of the sensor. Figure 3 The structural principle diagram shows that the array sensor measurement unit contains both a temperature sensor and an inclination sensor. The MCU collects tilt data and temperature data in real time and performs temperature compensation in real time to maintain the accuracy of the sensor.

[0045] It should be noted that the displacement sensor system has a simple structure and is easy to install. To protect the circuits and precision components within the sensor unit, it is fully sealed. Made of high-strength, age-resistant 304 stainless steel, the unit has a length of 0.5 to 1m per section and is IP68 rated. It can operate underwater up to 100m, making it suitable for long-term field monitoring.

[0046] In the embodiment of the present disclosure, the sensor unit is in the process of cruising, such as Figure 3 As shown, the tilt reading can be measured every certain distance (gauge length L). Suppose the tilt angle in a certain direction measured at a certain depth is θ h Since the gauge length L is fixed and known, the inclination angle can be converted into the horizontal offset of the inclinometer tube axis relative to the plumb line at that depth according to the sinusoidal relationship.

[0047] I h =L·sinθ h

[0048] Accurate estimate of the tilt angle α(n), the tilt angle measurement The tilt angle estimation method is determined together with the current temperature T(n), where the formula is as follows:

[0049]

[0050] Where y(n) is the tilt angle compensation value. k and b are regression model parameters, which can be calculated using data collected at different temperatures using high-precision equipment as the true values.

[0051] In the disclosed embodiment, a return spring is provided at the connection between the displacement pulley and the sensor unit. It should be noted that the material, shape and installation method of the return spring can be set according to actual design requirements and are not limited here.

[0052] Therefore, by providing a return spring, the displacement pulley can be closely attached to the inner wall or slideway of the catheter 110, thereby adapting to catheters 110 of different sizes.

[0053] In one possible implementation, the catheter 110 is provided with a slideway that slides in cooperation with the displacement pulley.

[0054] In the embodiment of the present disclosure, the processor 130 and the displacement sensor are connected via optical fiber communication, thereby preventing the problem of poor wireless communication performance in complex and harsh environments.

[0055] In the disclosed embodiment, the length of the sensor unit is 500 mm or 1000 mm. Compared with the 2m to 3m measurement scale of traditional sensors, the number of measurement points increases by 4 to 6 times, which significantly improves monitoring accuracy.

[0056] In one possible implementation, Figure 4 As shown, the displacement sensor module 120 further includes a timing unit, which is configured to generate a wake-up instruction after a preset time is reached and send the wake-up instruction to the sensor unit.

[0057] After receiving the wake-up command, the sensor unit switches from the dormant state to the enabled state. In one possible implementation, the sensor unit operates at the lowest frequency and is in the dormant state before receiving the wake-up command. After receiving the wake-up command, the processor 130 of the sensor unit is awakened by the wake-up command and automatically collects and stores data.

[0058] In the descriptions of the foregoing embodiments, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are mutually inconsistent.

[0059] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0060] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, segment or portion of code comprising one or more executable instructions for implementing the steps of a custom logical function or process, and the scope of the preferred embodiments of the present application includes alternative implementations in which functions may be performed out of the order shown or discussed, including performing functions in a substantially simultaneous manner or in the reverse order depending on the functions involved, which should be understood by those skilled in the art to which the embodiments of the present application belong.

[0061] The logic and / or steps represented in the flowcharts or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing the logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (e.g., a computer-based system, a system including a processor, or other system that can fetch and execute instructions from an instruction execution system, apparatus, or device). For purposes of this specification, a "computer-readable medium" can be any device that can contain, store, communicate, propagate, or transport a program for use by, or in conjunction with, an instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of computer-readable media include the following: an electrical connection with one or more wires (electronic devices), a portable computer disk cartridge (magnetic device), random access memory (RAM), read-only memory (ROM), erasable and programmable read-only memory (EPROM or flash memory), fiber optic devices, and a portable compact disc read-only memory (CDROM). Furthermore, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or processing it in another suitable manner if necessary, and then storing it in a computer memory.

[0062] It should be understood that various parts of the present application can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented using software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented using hardware, as in another embodiment, any one of the following technologies known in the art or a combination thereof can be used to implement: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application-specific integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0063] Those skilled in the art will understand that all or part of the steps in the method of the above embodiment can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium. When the program is executed, it includes one or a combination of the steps of the method embodiment.

[0064] In addition, the functional units in the various embodiments of the present application may be integrated into a processing module, or each unit may exist physically separately, or two or more units may be integrated into a module. The above-mentioned integrated module may be implemented in the form of hardware or in the form of a software functional module. If the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it may also be stored in a computer-readable storage medium.

[0065] The storage medium mentioned above may be a read-only memory, a magnetic disk, or an optical disk, etc. Although the embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application. Persons skilled in the art may make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present application.

Claims

1. A displacement sensor system, characterized in that: include: a catheter, a displacement sensor module, and a processor; The catheter is installed in a measuring hole of the object to be measured, and the displacement sensor module is arranged in the catheter; The displacement sensor module includes a plurality of sensor units, each of which is provided with a displacement pulley and a motor, wherein the output end of the motor is connected to the enabling end of the displacement pulley; The sensor unit is further provided with a cycle timer, the control end of the cycle timer is connected to the receiving end of the motor, and is used to generate a cruise detection instruction and send it to the motor; The processor is communicatively connected to the displacement sensor module.

2. The displacement sensor system according to claim 1, characterized in that The sensor units are arranged in a preset array within the catheter.

3. The displacement sensor system according to claim 1 or 2, characterized in that: The sensor unit comprises: One or more of a temperature sensor and an inclination sensor.

4. The displacement sensor system according to claim 1, wherein: A return spring is provided at the connection between the displacement pulley and the sensor unit.

5. The displacement sensor system according to claim 1, wherein: The guide tube is provided with a slideway which slides in cooperation with the displacement pulley.

6. The displacement sensor system according to claim 1, wherein: The material of the catheter is PVC.

7. The displacement sensor system according to claim 1, wherein: The processor and the displacement sensor are communicated via optical fiber communication.

8. The displacement sensor system according to claim 1, wherein: The length of the sensor unit is 500 mm or 1000 mm.

9. The displacement sensor system according to claim 1, wherein: The displacement sensor module further includes: The timing unit is used to generate a wake-up instruction after a preset time is reached, and send the wake-up instruction to the sensor unit.

10. The displacement sensor system according to claim 9, characterized in that After receiving the wake-up instruction, the sensor unit switches from the sleep state to the enabled state.

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