Displacement sensor system

Abstract

The invention 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 increasing scale of infrastructure such as dams, bridges, and tunnels, the safety and stability of engineering structures have gradually become the 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, displacement meters, etc. These single-point sensors usually require multiple devices to be installed at 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 are labor-intensive and inefficient, and are easily affected by human factors. Summary of the invention

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

[0004] To this end, an 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 an object to be measured, and the displacement sensor module is arranged in the catheter; the displacement sensor module includes a plurality of sensor units, and the sensor unit is provided with a displacement pulley and a motor, and the output end of the motor is connected to the enabling 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 an 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 material.

[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 an 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 an embodiment of the present disclosure, after receiving the wake-up instruction, the sensor unit is converted from a sleep state to an enabled state.

[0015] Through the displacement wheel change and cycle timer of the displacement sensor system in the embodiment of the present invention, 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 measuring holes are not high, which can greatly reduce the cost of drilling and inclinometer pipes 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 is a structural principle diagram of a displacement sensor system according to one embodiment of the present disclosure;

[0019] Figure 4 It is a structural schematic diagram of a displacement sensor module according to one embodiment of the present disclosure. DETAILED DESCRIPTION

[0020] Embodiments of the present disclosure are described in detail below, 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 the technical solution disclosed in this disclosure are in compliance with the relevant provisions of relevant laws and regulations.

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

[0023] Figure 1 is a schematic 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 object to be measured can be various, and no limitation is made here. For example, the object to be measured can be a dam, a mine, etc. The depth, angle, and size of the measurement hole can be limited according to the actual measurement needs, and no setting is made here. For example, the depth of the measurement hole can be 10 meters, the angle can be 90°, and the size can be 30 mm in diameter.

[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 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.

[0028] The number of sensor units can be limited according to actual design requirements. In one possible implementation, the sensor unit can be manually delivered to a designated operating position of the catheter, or a predetermined 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, 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.

[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 in 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 the data collected by the displacement sensor module 120, and can 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 a 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, so as to realize 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 invention, 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 measuring holes are not high, which can greatly reduce the cost of drilling and inclinometer pipes and simplify the installation process.

[0038] In the actual measurement process, the working position can be set for each sensor unit of the displacement sensor module 120, and the sensor unit can automatically move to the corresponding working position through the displacement pulley. The cycle timer can generate a cruise detection instruction based on the cruise area and cruise cycle set in advance, or based on the cruise area and cruise cycle issued by the processor, and send it to the motor. The motor controls the movement of the sensor unit based on the cruise area and cruise cycle in the cruise detection instruction, and performs real-time data collection.

[0039] The exact position of each point along the axis of the borehole 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.

[0040] In a possible implementation, the material of the catheter 110 may be PVC material.

[0041] In the embodiment of the present disclosure, the sensor units are arranged in a preset array within the catheter 110 .

[0042] 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 Preset array shown.

[0043] 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 may be a SCC2230-E02 three-axis gyroscope acceleration sensor.

[0044] It should be noted that in order to improve the measurement accuracy of the tilt angle, the current tilt angle estimation combines the temperature data collected by the temperature sensor and processes it through a regression algorithm. Specifically, the real-time temperature value collected by the temperature sensor will be used as input, and the compensation value of the tilt angle will be calculated through a linear regression algorithm, thereby obtaining a more accurate tilt angle estimation result.

[0045] 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 the inclination data and temperature data in real time, and performs temperature compensation in real time to maintain the accuracy of the sensor.

[0046] It should be noted that the displacement sensor system has a simple structure and is easy to install. In order to protect the circuits and precision devices in the sensor unit, the overall fully sealed structure is designed. The overall high-strength, single-section length is 0.5 to 1m, and aging-resistant 304 stainless steel is used. The protection level is IP68, and it can work normally within 100m underwater, which is suitable for long-term field monitoring.

[0047] In the embodiment of the present disclosure, the sensor unit is in the process of cruising, such as Figure 3 As shown, the inclination reading can be measured every certain distance (gauge length L). Suppose the inclination angle measured in a certain direction at a certain depth is θ hSince the gauge length L is fixed and known, the inclination angle can be converted into the horizontal offset of the inclinometer tube axis at that depth relative to the plumb line according to the sinusoidal relationship.

[0048] I h =L·sinθ h

[0049] Accurate estimate of the tilt angle α(n), the measured tilt angle The inclination angle estimation method is determined together with the current temperature T(n), where the formula is as follows:

[0050]

[0051] Among them, y(n) is the tilt angle compensation value. k and b are regression model parameters, which can be calculated by using high-precision equipment to collect data at different temperatures in advance as true values.

[0052] 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 no limitation is imposed here.

[0053] Therefore, by setting a return spring, the displacement pulley can be close to the inner wall or slide of the catheter 110, so as to adapt to catheters 110 of different sizes. At the same time, when the catheter 110 is deformed, the ductility of the return spring can still ensure that the sensor unit has the ability to move, thereby improving the practicality of the system disclosed.

[0054] In a possible implementation, the catheter 110 is provided with a slideway that slides in cooperation with the displacement pulley.

[0055] In the embodiment of the present disclosure, the processor 130 and the displacement sensor are connected to each other by optical fiber communication, so that the problem of poor wireless communication effect in complex and harsh environments can be avoided through this communication method.

[0056] In the disclosed embodiment, the length of the sensor unit is 500 mm or 1000 mm. Compared with the 2m to 3m measurement gauge of the traditional sensor, the number of measurement points increases by 4 to 6 times, which significantly improves the monitoring accuracy.

[0057] In one possible implementation, Figure 4 As shown, the displacement sensor module 120 further includes a timing unit, which is used to generate a wake-up instruction after a preset time is reached, and send the wake-up instruction to the sensor unit.

[0058] After receiving the wake-up instruction, the sensor unit changes from the sleep state to the enabled state. In one possible implementation, before receiving the wake-up instruction, the sensor unit only operates at the lowest frequency and is in the sleep state. After receiving the wake-up instruction, the processor 130 of the sensor unit is awakened by the wake-up instruction and automatically collects and stores data.

[0059] It should be noted that personal information from users should be collected for legitimate and reasonable purposes and should not be shared or sold outside of these legitimate uses. In addition, such collection / sharing should be carried out after receiving the user's informed consent, including but not limited to notifying the user to read the user agreement / user notice and sign the agreement / authorization including authorization of relevant user information before the user uses the function. In addition, any necessary steps should be taken to protect and safeguard access to such personal information data and ensure that others who have access to personal information data comply with its privacy policy and procedures.

[0060] The present application is expected to provide an implementation scheme for users to selectively block the use or access of personal information data. That is, the present disclosure is expected to provide hardware and / or software to prevent or block access to such personal information data. Once the personal information data is no longer needed, the risk can be minimized by limiting data collection and deleting the data. In addition, when applicable, such personal information is de-identified to protect the privacy of the user.

[0061] In the description of the aforementioned embodiments, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means 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 representations 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, without contradiction.

[0062] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0063] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, fragment 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 not be performed in 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 technicians in the technical field to which the embodiments of the present application belong.

[0064] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as an ordered list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute instructions), or in combination with these instruction execution systems, devices or apparatuses. For the purpose of this specification, "computer-readable medium" can be any device that contains, stores, communicates, propagates or transmits a program for use by an instruction execution system, device or apparatus, or in combination with these instruction execution systems, devices or apparatuses. More specific examples (non-exhaustive list) of computer-readable media include the following: an electrical connection with one or more wires (electronic device), a portable computer disk box (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), a fiber optic device, and a portable compact disk read-only memory (CDROM). In addition, 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 in other suitable ways if necessary, and then stored in a computer memory.

[0065] It should be understood that the various parts of the present application can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, multiple steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0066] A person skilled in the art may understand that all or part of the steps in the method for implementing the above-mentioned embodiment may be completed by instructing related hardware through a program, and the program may be stored in a computer-readable storage medium, which, when executed, includes one or a combination of the steps of the method embodiment.

[0067] In addition, each functional unit in each embodiment 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 one 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.

[0068] 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 can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application. A person of ordinary skill in the art may change, modify, replace and modify 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 conduit is installed in a measuring hole of the object to be measured, and the displacement sensor module is arranged in the conduit; The displacement sensor module comprises 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 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; 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, characterized in that: 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, characterized in that: 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, characterized in that: The material of the catheter is PVC.

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

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

9. The displacement sensor system according to claim 1, characterized in that: The displacement sensor module further includes: A 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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