Wireless static stress-strain acquisition device

Abstract

The utility model discloses a wireless static stress-strain acquisition device, and relates to the field of signal processing and the technical field of oil drilling equipment. The device comprises an acquisition device shell, a stress-strain acquisition module, a signal conditioning module, a bridge circuit selection module and a wireless transmission module, the stress-strain acquisition module, the signal conditioning module, the bridge circuit selection module and the wireless transmission module are connected in sequence and are all arranged in the acquisition device shell; the collecting device shell is used for being attracted to the surface of a target oil derrick in a magnetic attraction mode. The stress-strain acquisition module is used for acquiring strain data of a target oil derrick; the signal conditioning module is used for carrying out analog-to-digital conversion processing to obtain a standardized digital signal of the strain data; the bridge circuit selection module is used for carrying out bridge circuit switching based on a standard signal, and the wireless transmission module is used for carrying out wireless transmission. According to the utility model, the stress-strain state of the derrick in the operation process is monitored in real time, and the safety and efficiency of drilling operation are improved.

Description

Technical Field

[0001] The utility model relates to the field of signal processing and the technical field of oil drilling equipment, in particular to a wireless static stress and strain acquisition device. Background Art

[0002] During oil drilling, the derrick, a critical load-bearing structure, has a stability and safety that are directly linked to the success of the drilling operation. However, existing derricks often endure complex and variable loads and harsh environments over extended periods of use, leading to varying degrees of stress concentration and strain deformation in the rods, joints, and overall structure, posing safety risks. Traditional monitoring methods often suffer from low accuracy, poor real-time performance, and high costs, making them unable to meet the safety and efficiency demands of modern drilling operations. Utility Model Content

[0003] The purpose of the utility model is to provide a wireless static stress and strain acquisition device, which can monitor the stress and strain state of the derrick in real time during operation and improve the safety and efficiency of drilling operations.

[0004] To achieve the above purpose, the present invention provides the following solutions:

[0005] A wireless static stress and strain acquisition device comprises: an acquisition device housing, a stress and strain acquisition module, a signal conditioning module, a bridge selection module and a wireless transmission module;

[0006] The stress and strain acquisition module, the signal conditioning module, the bridge selection module, and the wireless transmission module are connected in sequence and are all arranged inside the housing of the acquisition device;

[0007] The acquisition device housing is used to be magnetically adsorbed on the surface of the target oil derrick; the stress and strain acquisition module is used to collect strain data of the target oil derrick; the signal conditioning module is used to perform analog-to-digital conversion on the strain data to obtain a standardized digital signal of the strain data; the bridge selection module is used to switch the bridge based on the standard signal; and the wireless transmission module is used to wirelessly transmit the collected strain data.

[0008] Optionally, the stress and strain acquisition module includes two circuit sub-modules with identical structures and connected to each other; each of the circuit sub-modules includes two closed circuits arranged in a mirror image.

[0009] Optionally, the closed circuit specifically includes: a single-chip microcomputer and multiple resistors connected to the single-chip microcomputer; wherein, pin 1 of the single-chip microcomputer is grounded, and pin 4 is respectively connected to resistor R17, resistor R11, resistor R12 and resistor R18; the resistor R17 is also connected to pin 3 through a sliding rheostat R25; the resistor R11 is also connected to pin 3; the resistor R18 is also connected to a sliding rheostat R26; the resistor R12 and the resistor R18 are also connected to resistor R4; the resistor R4 is also grounded.

[0010] Optionally, the signal conditioning module specifically includes: an AD7705BRUZ single-chip microcomputer and an amplifying circuit, a filtering circuit and a signal conversion circuit respectively connected to the AD7705BRUZ single-chip microcomputer.

[0011] Optionally, the bridge selection module specifically includes: an ADG888YRUZ single-chip microcomputer and a quarter-bridge circuit, a half-bridge circuit and a full-bridge circuit respectively connected to the ADG888YRUZ single-chip microcomputer.

[0012] Optionally, the wireless transmission module adopts LoRa wireless transmission equipment.

[0013] According to the specific embodiments provided by the present invention, the present invention discloses the following technical effects:

[0014] The utility model discloses a wireless static stress and strain acquisition device, comprising an acquisition device housing, a stress and strain acquisition module, a signal conditioning module, a bridge selection module, and a wireless transmission module. The stress and strain acquisition module, signal conditioning module, bridge selection module, and wireless transmission module are sequentially connected and disposed within the acquisition device housing. The acquisition device housing is magnetically attached to the surface of a target oil derrick. The stress and strain acquisition module is configured to acquire strain data from the target oil derrick. The signal conditioning module is configured to perform analog-to-digital conversion on the strain data to obtain a standardized digital signal of the strain data. The bridge selection module is configured to switch bridges based on a standard signal, and the wireless transmission module is configured to wirelessly transmit the acquired strain data. This utility model monitors the stress and strain state of the derrick in real time during operation, thereby improving the safety and efficiency of drilling operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1This is a schematic structural diagram of the wireless static stress and strain acquisition device of the utility model;

[0017] Figure 2 Schematic diagram of the circuit design of the stress and strain acquisition module in this embodiment;

[0018] Figure 3 Schematic diagram of the circuit design of the signal conditioning module in this embodiment;

[0019] Figure 4 Schematic diagram of the circuit design of the bridge selection circuit in this embodiment.

[0020] Figure numerals: 1. Collection device housing; 2. Stress and strain collection module; 3. Signal conditioning module; 4. Bridge selection module; 5. Wireless transmission module. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] The purpose of the utility model is to provide a wireless static stress and strain acquisition device, which can monitor the stress and strain state of the derrick in real time during operation and improve the safety and efficiency of drilling operations.

[0023] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0024] like Figures 1-4 As shown, the utility model provides a wireless static stress and strain acquisition device, including: an acquisition device housing 1, a stress and strain acquisition module 2, a signal conditioning module 3, a bridge selection module 4 and a wireless transmission module 5.

[0025] The stress and strain acquisition module 2 , the signal conditioning module 3 , the bridge selection module 4 and the wireless transmission module 5 are connected in sequence and are all arranged inside the acquisition device housing 1 .

[0026] The acquisition device housing 1 is used to be magnetically adsorbed on the surface of the target oil derrick; the stress and strain acquisition module 2 is used to collect strain data of the target oil derrick; the signal conditioning module 3 is used to perform analog-to-digital conversion on the strain data to obtain a standardized digital signal of the strain data; the bridge selection module 4 is used to switch the bridge based on the standard signal; and the wireless transmission module 5 is used to wirelessly transmit the collected strain data.

[0027] As a specific implementation, the stress and strain acquisition module 2 includes two circuit sub-modules having the same structure and connected to each other; each circuit sub-module includes two closed circuits arranged in a mirror image.

[0028] In which, the closed circuit includes a single-chip microcomputer and multiple resistors connected to the single-chip microcomputer; wherein, pin 1 of the single-chip microcomputer is grounded, and pin 4 is respectively connected to resistor R17, resistor R11, resistor R12 and resistor R18; the resistor R17 is also connected to pin 3 through a sliding rheostat R25; the resistor R11 is also connected to pin 3; the resistor R18 is also connected to a sliding rheostat R26; the resistor R12 and the resistor R18 are also connected to resistor R4; the resistor R4 is also grounded.

[0029] As a specific implementation, the signal conditioning module 3 specifically includes: an AD7705BRUZ single chip microcomputer and an amplifying circuit, a filtering circuit and a signal conversion circuit respectively connected to the AD7705BRUZ single chip microcomputer.

[0030] As a specific embodiment, the bridge selection module 4 includes: an ADG888YRUZ single-chip microcomputer and a quarter-bridge circuit, a half-bridge circuit, and a full-bridge circuit respectively connected to the ADG888YRUZ single-chip microcomputer. In addition, the wireless transmission module 5 adopts a LoRa wireless transmission device.

[0031] Based on the above technical solution, a specific embodiment is provided.

[0032] In this embodiment, the device includes a collection device housing 1 , a stress and strain collection module 2 , a signal conditioning module 3 , a bridge selection module 4 , and a wireless transmission module 5 .

[0033] The device shell is magnetically adsorbed to the surface of the oil derrick; the stress and strain acquisition module 2 is used to collect micro-strain of the oil rig derrick, which can be accurate to 1 micro-strain; the signal conditioning module 3 implements filtering, noise removal, amplification, and normalization processing of weak signals, making the output signal a standard signal and realizing the conversion of the signal from analog to digital; the bridge selection module 4 realizes the switching of 1 / 4, half-bridge, and full-bridge; the wireless transmission module 5 adopts LoRa wireless transmission technology, which is low-power and low-cost, and realizes the transmission of the collected strain data.

[0034] Beneficial effects:

[0035] 1. The wireless static stress and strain acquisition device improves the heavy wiring work of wired detection. It is only the size of a palm and is easy to carry. It reduces the labor intensity and cost of manual monitoring and improves work efficiency.

[0036] 2. The wireless static stress and strain acquisition device has low cost and is easy to market and promote.

[0037] 3. It enables remote real-time monitoring and early warning of the derrick's stress and strain status, making it possible to take timely safety measures. This promotes the intelligent and information-based development of drilling operations and improves the overall operational level.

[0038] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0039] This document uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help you understand the core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. A wireless static stress and strain acquisition device, characterized in that: include: Acquisition device housing, stress and strain acquisition module, signal conditioning module, bridge selection module and wireless transmission module; The stress and strain acquisition module, the signal conditioning module, the bridge selection module, and the wireless transmission module are connected in sequence and are all arranged inside the housing of the acquisition device; The acquisition device housing is used to be magnetically adsorbed on the surface of the target oil derrick; the stress and strain acquisition module is used to collect strain data of the target oil derrick; the signal conditioning module is used to perform analog-to-digital conversion on the strain data to obtain a standardized digital signal of the strain data; the bridge selection module is used to switch the bridge based on the standardized digital signal; and the wireless transmission module is used to wirelessly transmit the collected strain data.

2. The wireless static stress and strain acquisition device according to claim 1, characterized in that: The stress and strain acquisition module includes two circuit sub-modules with the same structure and connected to each other; each of the circuit sub-modules includes two closed circuits arranged in a mirror image.

3. The wireless static stress and strain acquisition device according to claim 2, characterized in that: The closed circuit specifically includes: a single-chip microcomputer and multiple resistors connected to the single-chip microcomputer; wherein, pin 1 of the single-chip microcomputer is grounded, and pin 4 is respectively connected to resistor R17, resistor R11, resistor R12 and resistor R18; the resistor R17 is also connected to pin 3 through a sliding rheostat R25; the resistor R11 is also connected to pin 3; the resistor R18 is also connected to a sliding rheostat R26; the resistor R12 and the resistor R18 are also connected to resistor R4; and the resistor R4 is also grounded.

4. The wireless static stress and strain acquisition device according to claim 1, characterized in that: The signal conditioning module specifically includes: an AD7705BRUZ single chip microcomputer and an amplifying circuit, a filtering circuit and a signal conversion circuit respectively connected to the AD7705BRUZ single chip microcomputer.

5. The wireless static stress and strain acquisition device according to claim 1, characterized in that: The bridge selection module specifically includes: an ADG888YRUZ single-chip microcomputer and a quarter-bridge circuit, a half-bridge circuit and a full-bridge circuit respectively connected to the ADG888YRUZ single-chip microcomputer.

6. The wireless static stress and strain acquisition device according to claim 1, characterized in that: The wireless transmission module adopts LoRa wireless transmission equipment.

Images