Anchor rod stress wireless monitoring system
By collecting and transmitting slope monitoring data over long distances through a wireless anchor stress monitoring system, the problems of high cost and susceptibility to failure in existing technologies are solved, and efficient and reliable slope monitoring is achieved.
Patent Information
- Application Number
- CN202520001960.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-02
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-01-02
AI Technical Summary
Existing slope monitoring devices have high connection costs, high failure rates, and are easily affected by the environment, especially the power lines are prone to short circuits, which can lead to data loss or distortion.
An anchor bolt stress wireless monitoring system is adopted, which collects monitoring data from scattered locations through a hub and antenna, amplifies and processes the data, and transmits it over long distances. Waterproof components are also provided to protect the communication equipment, reducing the need for equipment deployment and failure rate.
It reduces monitoring costs, minimizes the risk of data loss and distortion, improves monitoring efficiency and system reliability, and ensures the effectiveness and flexibility of slope monitoring.
Smart Images
Figure CN223893431U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of anchor bolt stress monitoring technology, and in particular to a wireless anchor bolt stress monitoring system. Background Technology
[0002] The stability of slopes has a significant impact on construction projects such as highways, railways, water conservancy, civil engineering, water transport, and mining. Therefore, in order to ensure the normal operation of various construction projects, it is necessary to monitor slope deformation to understand slope movement, deformation, and stability, and to reinforce slopes when necessary to ensure the safety of various construction projects.
[0003] Current methods for slope monitoring typically involve evenly distributing multiple monitoring devices across the slope, with each device connected to nearby stations via wireless or wired connections. While this method transmits monitoring data to nearby stations, individual transmission by each device requires either a robust communication module on each device or a large number of wired networks to enable stations to receive data from each device, resulting in high costs. Excessive connections and wiring also increase the failure rate, potentially negatively impacting monitoring operations. Furthermore, existing monitoring devices are directly exposed to the elements without protective structures, making them susceptible to environmental influences. In particular, when power lines come into contact with rainwater, short circuits can occur, causing significant damage. Utility Model Content
[0004] The purpose of this invention is to provide a wireless monitoring system for anchor bolt stress, addressing the aforementioned problems. The system collects monitoring data from dispersed monitoring institutions, amplifies and processes the data, and then transmits it over a long distance. This not only reduces the need for communication equipment and lowers costs, but also reduces the risk of data loss or distortion, lowers the failure rate, and improves monitoring efficiency.
[0005] To achieve the above-mentioned objectives, the technical solution adopted by this utility model is as follows:
[0006] According to one aspect of the present invention, a wireless monitoring system for anchor bolt stress is provided, including a remote communication mechanism and multiple anchor bolt stress monitoring mechanisms, wherein the multiple anchor bolt stress monitoring mechanisms are evenly arranged on the slope to be monitored.
[0007] The remote communication mechanism includes a pole assembly, a hub, and a first antenna. The hub and the first antenna are fixedly mounted on the pole assembly, and the first antenna is electrically connected to the hub.
[0008] The anchor bolt stress monitoring mechanism includes an anchor bolt stress monitoring component, an anchor bolt fixing component, and a waterproof component. The anchor bolt stress monitoring component is fixedly installed on the anchor bolt fixing component. The anchor bolt stress monitoring component is connected to the hub via wired or wireless connection. The waterproof component is fixedly sleeved on the outside of the anchor bolt fixing component.
[0009] Preferably, the pole assembly includes a pole, a support plate, and a support rod. The support plate is fixedly connected to the upper end of the pole, the support rod is sleeved inside the pole and threadedly connected to the pole, the hub is fixedly connected to the upper end of the support rod, and the first antenna is fixedly mounted on the support plate.
[0010] Preferably, it further includes a first solar panel, which is fixedly mounted on the hub and electrically connected to the hub.
[0011] Preferably, the anchor stress monitoring assembly includes a full-bridge strain gauge structure, a controller, and a communication module;
[0012] The full-bridge strain gauge structure is electrically connected to the controller, the communication module is electrically connected to the controller, and the communication module is connected to the hub.
[0013] Preferably, the full-bridge strain gauge structure includes a support body and four strain gauges, the four strain gauges are fixedly mounted on the support body, and the four strain gauges are connected to form a bridge circuit by wires.
[0014] Preferably, the communication module includes a communication chip, a first communication connector, and a second communication connector. The first and second communication connectors are electrically connected to the communication chip, the first communication connector is wired to a hub via a 484 bus, and the second communication connector is wirelessly connected to a first antenna via a second antenna.
[0015] Preferably, the anchor bolt fixing assembly includes an iron ring, a first clamping member, a second clamping member, and a bracket assembly. The iron ring has a first anchor bolt fixing hole extending through it along the axial direction. The full-bridge strain gauge structure is attached to the outer side wall of the iron ring. The first clamping member abuts against one end of the iron ring. The first clamping member has a second anchor bolt fixing hole coaxial with the first anchor bolt fixing hole. The second clamping member abuts against the first clamping member. The second clamping member has a third anchor bolt fixing hole coaxial with the first anchor bolt fixing hole. The bracket assembly is sleeved on the outside of the iron ring. The controller and the wireless transmitter are integrated on the bracket assembly.
[0016] Preferably, the bracket assembly includes a polygonal bracket formed by connecting multiple plates end to end. The polygonal bracket is sleeved on the outside of the iron ring. A PCB board is connected to the outside of the polygonal bracket through a support column. The controller and the wireless transmitter are integrated on the PCB board.
[0017] Preferably, the waterproof component includes a first sleeve, a fixed sleeve, and a second sleeve. The first sleeve is fitted onto one end of the fixed sleeve, and the second sleeve is fitted onto the other end of the fixed sleeve to form an accommodating space. The anchor bolt fixing component is fixedly installed within the accommodating space.
[0018] Preferably, it also includes a second solar panel, which is fixedly disposed on the outside of the second sleeve and electrically connected to the anchor stress monitoring component.
[0019] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:
[0020] 1. This utility model collects monitoring data from dispersed monitoring agencies, amplifies and processes it, and then transmits it over long distances in a unified manner. This not only reduces the deployment of communication equipment and reduces costs, but also reduces the risk of data loss or distortion, as well as the failure rate and improves monitoring efficiency.
[0021] 2. By equipping the outside of the monitoring line with a waterproof component, this utility model can prevent rainwater from adversely affecting the power line, ensuring the effective operation of the system and providing protection for the monitoring work. Attached Figure Description
[0022] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;
[0023] Figure 2 This is a schematic diagram of the structure of the remote communication mechanism of this utility model;
[0024] Figure 3 This is a schematic diagram of the anchor bolt stress monitoring mechanism of this utility model;
[0025] Figure 4 This is a structural schematic diagram of the anchor bolt stress monitoring component of this utility model.
[0026] In the attached diagram: 1. Slope; 2. Lattice beam; 3. Remote communication mechanism; 4. Anchor bolt stress monitoring mechanism; 5. Anchor bolt stress monitoring component; 6. Iron ring; 7. First clamping component; 8. Second clamping component; 9. Polygonal bracket; 10. Support column; 11. PCB board; 12. First sleeve; 13. Fixed sleeve; 14. Second sleeve; 15. Metal pad; 16. Anchor bolt; 31. Pole assembly; 32. Hub; 33. First antenna; 311. Pole; 312. Support plate; 313. Support rod; 314. First solar panel; 51. Full-bridge strain gauge structure. Detailed Implementation
[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided with reference to the accompanying drawings and preferred embodiments. However, it should be noted that many details listed in the specification are merely to provide the reader with a thorough understanding of one or more aspects of the utility model, and these aspects can be achieved even without these specific details.
[0028] Please see Figures 1 to 4 This utility model provides a wireless monitoring system for anchor bolt stress, and the technical solution is as follows:
[0029] An anchor bolt stress wireless monitoring system includes a remote communication mechanism 3 and multiple anchor bolt stress monitoring mechanisms 4. Both the remote communication mechanism 3 and the multiple anchor bolt stress monitoring mechanisms 4 are installed on the slope 1 to be monitored. The remote communication mechanism 3 is fixedly installed at a high point on the slope 1 for remote communication. A lattice beam 2 is installed on the slope 1, and the multiple anchor bolt stress monitoring mechanisms 4 are evenly distributed on the lattice beam 2 to provide comprehensive monitoring of the slope 1.
[0030] Specifically, the remote communication mechanism 3 includes a pole assembly 311, a hub 32, and a first antenna 33. The pole assembly 311 includes a pole 311, a support plate 312, and a support rod 313. The lower end of the pole 311 is inserted into the slope 1 to be monitored. The support plate 312 is fixedly installed at the upper end of the pole 311 and is horizontally positioned. The upper end of the pole 311 passes through the support plate 312 and connects to the support rod 313. The upper end of the pole 311 has a threaded groove with internal threads. The lower end of the support rod 313 has external threads on its outer side and is fitted onto the upper end of the pole 311 via a threaded connection. The hub 32 is fixedly mounted on the upper end of the support rod 313. The hub 32 is connected to multiple anchor bolt 16 stress monitoring mechanisms 4 via wired or wireless means. The hub 32 receives monitoring data from the multiple anchor bolt 16 stress monitoring mechanisms 4, and regenerates, reshapes, and amplifies the received monitoring data to extend the network transmission distance for long-distance data transmission. Data transmission from the hub 32 is achieved through the first antenna 33, which is fixedly mounted on the support plate 312 and electrically connected to the hub 32. The hub 32 transmits the monitoring data to the first antenna 33, which converts the monitoring data into electromagnetic waves for long-distance transmission, facilitating remote monitoring of the slope 1 and improving detection efficiency. It also includes a first solar panel 314, which is fixedly mounted on the hub 32 and electrically connected to the hub 32. The first solar panel 314 provides power to the hub 32 to maintain the operation of the hub 32.
[0031] The anchor bolt stress monitoring mechanism 4 includes an anchor bolt stress monitoring component 5, an anchor bolt fixing component, and a waterproof component. Specifically, the anchor bolt stress monitoring component 5 includes a full-bridge strain gauge structure 51, a controller, a communication module, and a power supply module. The full-bridge strain gauge structure 51 includes a carrier and four strain gauges. The four strain gauges are fixedly mounted on the carrier and connected by wires to form a bridge circuit, such as a Wheatstone bridge. The bridge circuit is used to detect changes in the resistance of the strain gauges, thereby outputting a voltage. The carrier can be a thin metal sheet or a thin plastic sheet. The carrier is attached to the object to be measured. When the object is subjected to external force, at least one of the four strain gauges will undergo a slight change in shape and size, resulting in a corresponding change in its internal resistance value. This slight change is amplified by the bridge circuit and converted into a voltage or current signal for output, thereby achieving accurate measurement of the object's strain. The voltage signal generated by the bridge circuit is received by the controller, which calculates the specific stress change. Specifically, the controller includes a control chip, which is an STM32F103 microcontroller. The control chip is electrically connected to the output of the bridge circuit to receive the voltage signal generated by the bridge circuit. It analyzes and calculates the voltage signal to obtain the voltage change and thus calculate the magnitude of the stress on the object. The control chip transmits the stress signal to the hub 32 via a communication module. The hub 32 then amplifies the received multiple monitoring data and transmits them wirelessly over long distances, allowing staff to remotely receive and view the monitoring information.
[0032] The communication module includes a communication chip, a first communication connector, and a second communication connector. The communication chip is model UCODE IICSL3S4011. The communication chip is electrically connected to the control chip and is used to receive the anchor bolt 16 response data transmitted by the control chip. The communication chip connects to the hub 32 via the first or second communication connector, transmitting monitoring data to the hub 32 via wired or wireless means. Specifically, when a wired connection is required, the first communication connector connects to the communication chip and is connected to the hub 32 via a 484 bus. When the communication chip receives monitoring data from the control chip, it transmits the monitoring data to the hub 32 via the 484 communication protocol. The hub 32 collects the monitoring data sent by all monitoring components, packages it, and then transmits it over long distances. For short-distance transmission, a wired connection improves data transmission stability and reduces the impact of the environment on data transmission. When a wireless connection is required, the second communication connector connects to the communication chip and is wirelessly connected to the first antenna 33 via a second antenna. When the communication chip receives monitoring data from the control chip, it wirelessly transmits the data to the first antenna 33 via the second antenna. The first antenna 33 then transmits the data to the hub 32. The hub 32 aggregates the monitoring data sent by all monitoring components, packages it, and then transmits it over long distances. Wireless data transmission eliminates the need for on-site wiring, providing more convenient operation for slope 1 monitoring and greatly improving management flexibility and efficiency.
[0033] Furthermore, the system includes a piezometer, which is electrically connected to the control chip. By converting changes in seepage pressure within slope 1 into variations in the expansion and contraction of a displacement rod, this variation is then converted into an electrical signal by a displacement sensor and transmitted to the control chip for recording and analysis. The piezometer can monitor changes in pore water pressure within slope 1 in real time, providing crucial data for assessing slope 1's stability. Data collected by the piezometer allows staff to promptly understand the seepage situation within slope 1, predict potential landslides and other geological hazards, and take preventative measures in advance to ensure project safety. After collecting the water pressure signal, the piezometer transmits it to the control chip. The control chip calculates the changes in water pressure, generates a water pressure change signal, and transmits this signal over long distances via a wireless signal transmitter chip and antenna. This allows staff to view seepage data anytime, anywhere via computers, mobile phones, and other terminal devices, enabling them to monitor the operation of slope 1 and significantly improving management flexibility and efficiency.
[0034] Furthermore, this includes a wire-type displacement sensor, which is electrically connected to the control chip. The wire-type displacement sensor for slope 1 is specifically designed to monitor changes in slope 1's displacement. It reflects the displacement of slope 1 by measuring the elongation or shortening of a steel wire rope connected to it. Based on the expansion and contraction of the steel wire rope, when slope 1 displaces, the steel wire rope connected to it will elongate or shorten accordingly. This mechanical deformation is directly reflected in the displacement converter, which then converts it into readable numerical information. The displacement converter converts the physical displacement into an electrical signal output. This signal is then received and processed by the control chip, and finally transmitted to the monitoring center via a wireless signal transmitting chip antenna for remote monitoring by staff.
[0035] The entire detection device is powered by a power module, which includes a step-down chip and a power connector. The step-down chip is electrically connected to the control chip, strain gauge and wireless signal transmitting chip, respectively, and the power connector is electrically connected to the step-down chip.
[0036] Anchor bolt stress monitoring component 5 is mounted on the anchor bolt fixing component. Specifically, the anchor bolt fixing component includes an iron ring 6, a first clamping member 7, a second clamping member 8, and a support assembly. The iron ring 6 has a first anchor bolt fixing hole extending axially through it, allowing the anchor bolt 16 to pass through. Three full-bridge strain gauge structures 51 are evenly arranged around the iron ring 6 and adhered to the outer wall of the iron ring 6 to detect the stress on the iron ring 6. The first clamping member 7 abuts against one end of the iron ring 6 and has a second anchor bolt fixing hole coaxial with the first anchor bolt fixing hole. The second clamping member 8 abuts against the first clamping member 7 and has a third anchor bolt fixing hole coaxial with the first anchor bolt fixing hole. The anchor bolt 16 passes through the first, second, and third anchor bolt fixing holes respectively. The iron ring 6 is used to sense stress changes on the anchor rod 16. When the anchor rod 16 experiences stress changes, the iron ring 6 deforms, causing a change in the structure 51 of the entire bridge strain gauge. A first clamping member 7 is located at one end of the iron ring 6 to stabilize it, making the entire device more tightly connected and more sensitive to stress changes on the anchor rod 16, thus increasing the accuracy of the test. A second clamping member 8 further stabilizes the first clamping member 7.
[0037] A support assembly is fitted onto the outside of the iron ring 6. The support assembly includes a polygonal support 9 formed by multiple plates joined end-to-end, with the plates hinged together. The polygonal support 9 is fitted onto the outside of the iron ring 6, and a PCB board 11 is connected to the outside of the polygonal support 9 via support columns 10. The control chip and communication chip are integrated on the PCB board 11. The polygonal support 9 supports the PCB board 11, providing a stable support structure for the testing device and reducing the occurrence of monitoring device errors.
[0038] A waterproof component is fixedly fitted onto the outside of the anchor bolt 16 fixing component. The waterproof component includes a first sleeve 12, a fixing sleeve 13, and a second sleeve 14. An iron ring 6 is fixedly installed inside the first sleeve 12. The first sleeve 12 has a through hole for the anchor bolt 16 to pass through, corresponding to the first anchor bolt 16 fixing hole on the iron ring 6. One end of the fixing sleeve 13 is fitted inside the first sleeve 12, covering the iron ring 6. The other end of the fixing sleeve 13 is fitted with the second sleeve 14. The first sleeve 12, the second sleeve 14, and the fixing sleeve 13 form an accommodating space, within which the anchor bolt 16 fixing component and the monitoring component are fixedly installed. This protects the anchor bolt fixing component and the monitoring component from rainwater damage caused by the first sleeve 12, the second sleeve 14, and the fixing sleeve 13. The lower end of the second sleeve 14 is provided with a metal pad 15. When the anchor rod 16 has a certain tension, the metal pad 15 can provide a contact surface with the slope 1, so that the anchor rod 16 can be more firmly inserted into the slope 1. At the same time, it can protect the first sleeve 12 and prevent the second sleeve 14 from being affected by the tension of the anchor rod 16.
[0039] Furthermore, a second solar panel is also included. The second solar panel is fixedly mounted on the outside of the second sleeve 14 and is electrically connected to the step-down chip. The second solar panel generates electricity to provide power to the monitoring components.
[0040] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A wireless monitoring system for anchor bolt stress, characterized in that, It includes a remote communication mechanism and multiple anchor stress monitoring mechanisms, with the multiple anchor stress monitoring mechanisms evenly arranged on the slope to be monitored; The remote communication mechanism includes a pole assembly, a hub, and a first antenna. The hub and the first antenna are fixedly mounted on the pole assembly, and the first antenna is electrically connected to the hub. The anchor bolt stress monitoring mechanism includes an anchor bolt stress monitoring component, an anchor bolt fixing component, and a waterproof component. The anchor bolt stress monitoring component is fixedly installed on the anchor bolt fixing component. The anchor bolt stress monitoring component is connected to the hub via wired or wireless connection. The waterproof component is fixedly sleeved on the outside of the anchor bolt fixing component.
2. The wireless anchor bolt stress monitoring system according to claim 1, characterized in that: The pole assembly includes a pole, a support plate, and a support rod. The support plate is fixedly connected to the upper end of the pole. The support rod is sleeved inside the pole and threadedly connected to it. The hub is fixedly connected to the upper end of the support rod. The first antenna is fixedly mounted on the support plate.
3. The wireless anchor stress monitoring system according to claim 1, characterized in that: It also includes a first solar panel, which is fixedly mounted on the hub and electrically connected to the hub.
4. The wireless anchor bolt stress monitoring system according to claim 1, characterized in that: The anchor stress monitoring component includes a full-bridge strain gauge structure, a controller, and a communication module; The full-bridge strain gauge structure is electrically connected to the controller, the communication module is electrically connected to the controller, and the communication module is connected to the hub.
5. The wireless anchor bolt stress monitoring system according to claim 4, characterized in that: The full-bridge strain gauge structure includes a support body and four strain gauges. The four strain gauges are fixedly mounted on the support body and connected to form a bridge circuit by wires.
6. The wireless anchor bolt stress monitoring system according to claim 5, characterized in that: The communication module includes a communication chip, a first communication connector, and a second communication connector. The first and second communication connectors are electrically connected to the communication chip, respectively. The first communication connector is wired to a hub via a 484 bus, and the second communication connector is wirelessly connected to a first antenna via a second antenna.
7. The wireless anchor stress monitoring system according to claim 4, characterized in that: The anchor bolt fixing assembly includes an iron ring, a first clamping member, a second clamping member, and a bracket assembly. The iron ring has a first anchor bolt fixing hole that penetrates the iron ring along the axial direction. The full-bridge strain gauge structure is attached to the outer side wall of the iron ring. The first clamping member abuts against one end of the iron ring. The first clamping member has a second anchor bolt fixing hole that is coaxial with the first anchor bolt fixing hole. The second clamping member abuts against the first clamping member. The second clamping member has a third anchor bolt fixing hole that is coaxial with the first anchor bolt fixing hole. The bracket assembly is sleeved on the outside of the iron ring. The controller and the communication module are integrated on the bracket assembly.
8. The wireless anchor bolt stress monitoring system according to claim 7, characterized in that: The bracket assembly includes a polygonal bracket formed by connecting multiple plates end to end. The polygonal bracket is sleeved on the outside of the iron ring. A PCB board is connected to the outside of the polygonal bracket through a support column. The controller and the communication module are integrated on the PCB board.
9. The wireless anchor bolt stress monitoring system according to claim 1, characterized in that: The waterproof component includes a first sleeve, a fixed sleeve, and a second sleeve. The first sleeve is fitted onto one end of the fixed sleeve, and the second sleeve is fitted onto the other end of the fixed sleeve to form an accommodating space. The anchor bolt fixing component is fixedly installed within the accommodating space.
10. The wireless anchor bolt stress monitoring system according to claim 9, characterized in that: It also includes a second solar panel, which is fixedly installed on the outside of the second sleeve and is electrically connected to the anchor stress monitoring component.