Rock stratum displacement monitoring device based on high-precision magnetic encoder
By combining a high-precision magnetic encoder with a low-power Hall switch, a speed-increasing gear, and a timed wake-up mechanism, the problem of high power consumption in the rock displacement monitoring device is solved, and low-power real-time response is achieved, making it suitable for field geological monitoring.
Patent Information
- Application Number
- CN202423041016.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-10
- Publication Date
- 2025-09-30
- Estimated Expiration
- 2034-12-10
AI Technical Summary
Existing rock displacement monitoring devices have high power consumption, slow real-time response and high power consumption, which cannot meet the battery power supply requirements in field geological monitoring.
It uses high-precision magnetic encoders and low-power Hall switches, combined with speed-increasing gears and timed wake-up mechanisms to achieve emergency data collection and upload, reducing power consumption.
On the basis of ensuring real-time response, the power consumption of the device is reduced, the battery life is extended, and it is suitable for field geological monitoring.
Smart Images
Figure CN223400321U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of rock stratum monitoring, in particular to a rock stratum displacement monitoring device based on a high-precision magnetic encoder. Background Art
[0002] The pull-wire displacement monitoring device is small in size and easy to install. In special monitoring areas with complex terrain, such as hillsides, cliffs, slag, and areas prone to mudslides, the pull-wire displacement monitoring device can be directly installed on the surface to be monitored. By monitoring the displacement changes of the measured points, early warning can be given before disasters occur, and response plans can be made in advance. The existing pull-wire displacement monitoring device has the following structure:
[0003] 1. Sensor part
[0004] Wire draw box: This is one of the core components of the wire draw displacement sensor.
[0005] Two-way high-precision magnetic encoder: connected to the winding wheel inside the wire draw box.
[0006] 2. Install the bracket part
[0007] Fixing bracket: used to securely mount the sensor on a stationary reference object.
[0008] Connecting bracket: When the connection point of the object to be measured and the sensor installation location cannot be directly connected to the pull wire, a connecting bracket is required.
[0009] Signal conversion circuit: converts digital signals such as pulse signals into standard digital communication protocol signals.
[0010] 3. Protection part
[0011] Housing: The sensor body usually has a housing.
[0012] Wire protection cover: to protect the wire from wear and corrosion during use.
[0013] However, the existing detection devices have the following shortcomings. When in use, the existing detection devices are always online, with high power consumption, and they reduce power consumption in standby mode and wake up at regular intervals. The power consumption is proportional to the wake-up interval. The shorter the interval, the higher the power consumption, which leads to untimely response and high power consumption. Both of these real-time response methods are based on increasing operating power consumption. In geological monitoring, due to the limitations of field conditions, batteries are required to be used for power supply, but the power is not sufficient, and the equipment needs to have low operating power consumption. Utility Model Content
[0014] (1) Technical problems solved: In response to the deficiencies of the existing technology, the present invention provides a rock displacement monitoring device based on a high-precision magnetic encoder to solve the problems that the existing detection devices are always online, have high power consumption, and reduce power consumption in standby mode and wake up at regular intervals. The power consumption is proportional to the wake-up interval, and the shorter the interval, the higher the power consumption, which leads to untimely response and high power consumption. Both of these real-time response methods are based on the premise of increasing operating power consumption. In geological monitoring, due to the limitations of field conditions, batteries are required to be used for power supply, but the power is not sufficient, and the equipment needs to have low working power consumption.
[0015] (II) Technical Solution: To achieve the above objectives, this utility model is implemented through the following technical solutions:
[0016] A rock formation displacement monitoring device based on a high-precision magnetic encoder includes an upper housing, the upper housing being provided with a detection structure for facilitating detection of rock formation displacement, the detection structure including a winding roller, a turns magnetic encoder, a low-power Hall switch, and an MCU processor. The lower end of the upper housing is fixedly mounted with a lower housing, the winding roller is fixedly mounted on the inner side wall of the lower housing, the lower end of the winding roller is provided with a high-precision magnetic encoder, the turns magnetic encoder is fixedly mounted on the inner side wall of the lower housing, the low-power Hall switch is fixedly mounted on the inner side wall of the lower housing, the turns magnetic encoder, the high-precision magnetic encoder, the low-power Hall switch, and the MCU processor are wirelessly connected, a wiring slot is provided at the side end of the upper housing, a first rotating shaft is rotatably mounted on the upper end of the lower housing, a spur gear is fixedly mounted on the circumferential end of the first rotating shaft, the first rotating shaft penetrates and is rotatably mounted on the inner side wall of the high-precision magnetic encoder, a second rotating shaft is fixedly mounted on the output end of the turns magnetic encoder, a reduction gear is fixedly mounted on the circumferential end of the second rotating shaft, and the reduction gear and the spur gear are meshed.
[0017] Preferably, a third rotating shaft is fixedly mounted on the output end of the low-power Hall switch, a speed-increasing gear is fixedly mounted on the circumferential end of the third rotating shaft, and the speed-increasing gear is meshed with the third rotating shaft.
[0018] Preferably, the MCU processor is provided with an external watchdog, the MCU processor is connected to 4G data transmission, and the MCU processor is also provided with parameter configuration.
[0019] (III) Beneficial effects: 1. This device realizes real-time response of uploading emergency collected data through the speed-increasing gear, and adopts a timed wake-up mechanism to collect and upload data when there is no obvious displacement change, thereby reducing power consumption while ensuring real-time response.
[0020] 2. This device uses a timed wake-up mechanism when there is no obvious displacement change. After waking up, the device collects displacement and device status data and uploads it to the server. It also has an integrated waterproof design, a small size, low power consumption, and lower requirements for the battery system. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and to implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings.
[0022] Figure 1 This is a structural diagram of the upper housing of the utility model;
[0023] Figure 2 This is a structural diagram of the winding roller of the utility model;
[0024] Figure 3 This is a structural diagram of the first rotating shaft of the utility model;
[0025] Figure 4 This is the operational flow chart of the utility model.
[0026] Legend: 1. Upper housing; 11. Lower housing; 12. Wiring slot; 2. Winding roller; 21. High-precision magnetic encoder; 22. First rotating shaft; 23. Flat gear; 3. Turns magnetic encoder; 31. Second rotating shaft; 32. Reduction gear; 4. Low-power Hall switch; 41. Speed increasing gear; 42. Third rotating shaft; 5. MCU processor; 51. 4G data transmission; 52. Parameter configuration; 53. External watchdog. DETAILED DESCRIPTION
[0027] The embodiment of the present application provides a rock displacement monitoring device based on a high-precision magnetic encoder, which effectively solves the problem that in the use of existing detection devices, the device is always online, has high power consumption, reduces power consumption in standby mode, and wakes up at regular intervals. The power consumption is proportional to the wake-up interval. The shorter the interval, the higher the power consumption, which leads to untimely response and high power consumption. Both of these real-time response methods are based on increasing operating power consumption. In geological monitoring, due to field conditions, battery power is required, and the power is not sufficient, requiring the equipment to have low working power consumption. The device uses the speed-increasing gear 41 to achieve real-time response of emergency data upload, and adopts a regular wake-up mechanism to collect and upload data when there is no obvious displacement change, thereby reducing power consumption while ensuring real-time response.
[0028] Example: Figure 1 、 Figure 2 、 Figure 3 and Figure 4As described above, the technical solution in the embodiment of the present application is to effectively solve the problem that the existing detection device is always online, has high power consumption, reduces power consumption in standby mode, and wakes up at regular intervals. The power consumption is proportional to the wake-up interval. The shorter the interval, the higher the power consumption, which leads to untimely response and high power consumption. Both of these real-time response methods are based on the premise of increasing operating power consumption; in geological monitoring, due to field conditions, battery power is required, and the power is not sufficient, and the equipment needs to have low working power consumption. The overall idea is as follows: a rock formation displacement monitoring device based on a high-precision magnetic encoder, comprising an upper shell 1, and a detection structure for facilitating the detection of rock formation displacement is provided on the upper shell 1. The detection structure comprises a winding roller 2, a turn magnetic encoder 3, a low-power Hall switch 4 and an MCU processor 5. The lower end of the upper shell 1 is fixedly mounted with a lower shell 11, and the winding roller 2 is fixedly mounted on the inner wall of the lower shell 11. The lower end of the winding roller 2 is provided with a high-precision magnetic encoder. The degree magnetic encoder 21 and the number of turns magnetic encoder 3 are fixedly mounted on the inner wall of the lower shell 11, and the low-power Hall switch 4 is fixedly mounted on the inner wall of the lower shell 11. The number of turns magnetic encoder 3, the high-precision magnetic encoder 21, the low-power Hall switch 4 and the MCU processor 5 are connected wirelessly. The side end of the upper shell 1 is provided with a wiring slot 12. The upper end of the lower shell 11 is rotatably mounted with a first rotating shaft 22, and the circumferential end of the first rotating shaft 22 is fixedly mounted with a flat gear 23. The first rotating shaft 22 penetrates and is rotatably mounted on the inner wall of the high-precision magnetic encoder 21. When the user uses this device, the user measures by pulling the pull rope. When the pull rope is pulled, the winding roller 2 is driven to rotate. The rotation of the winding roller 2 drives the first rotating shaft 22 to rotate. The rotation of the first rotating shaft 22 transmits data to the high-precision magnetic encoder 21. When the first rotating shaft 22 rotates, it also drives the flat gear 23 to rotate. The rotation of the flat gear 23 drives the speed increase gear 41 to rotate.
[0029] The output end of the turns magnetic encoder 3 is fixedly mounted with a second rotating shaft 31, and the circumferential end of the second rotating shaft 31 is fixedly mounted with a reduction gear 32. The reduction gear 32 is meshed with the flat gear 23. When the flat gear 23 rotates, it also drives the second rotating shaft 31 to rotate. The rotation of the second rotating shaft 31 transmits the signal into the turns magnetic encoder 3. The turns magnetic encoder 3 is within the range of a single turn, and the reading is an absolute value. Therefore, through the reduction gear 32, the multiple turns of the pulling shaft are decelerated to a single turn, so that a multi-turn absolute value encoder can be realized, and the wheel speed ratio is an integer for the subsequent multi-turn data processing;
[0030] The output end of the low-power Hall switch 4 is fixedly mounted with a third rotating shaft 42, and the circumferential end of the third rotating shaft 42 is fixedly mounted with a speed-increasing gear 41, and the speed-increasing gear 41 and the third rotating shaft 42 are meshed with each other. The MCU processor 5 is provided with an external watchdog 53, and the MCU processor 5 is connected to a 4G data transmission 51. The MCU processor 5 is also provided with a parameter configuration 52. The speed-increasing gear 41 increases the rotation angle by sixteen times to drive the magnet, and measures the magnetic field of the magnet through the low-power Hall switch. For every rotation of the magnet, the full-phase Hall switch can generate four pulses and eight level rising and falling edges; in this way, one circle of the wire pulling shaft (ten centimeters) corresponds to sixty-four pulses and one hundred and twenty-eight level rising and falling edges of the Hall. Therefore, when the device is in a low-power state, a one-millimeter change in the wire pulling distance can generate an edge to wake up the device, and the device uploads emergency data to achieve real-time response. This real-time response feature allows the device to be in a low-power standby state in most cases.
[0031] In response to the problems existing in the prior art, the utility model provides a rock displacement monitoring device based on a high-precision magnetic encoder. The device realizes real-time response of emergency data collection and uploading through the speed-increasing gear 41, and adopts a timed wake-up mechanism to collect and upload data when there is no obvious displacement change, thereby reducing power consumption while ensuring real-time response.
[0032] Working principle:
[0033] When the user uses the device, the measurement is performed by pulling the rope. When the rope is pulled, the winding roller 2 is driven to rotate, and the rotation of the winding roller 2 drives the first rotating shaft 22 to rotate. The rotation of the first rotating shaft 22 transmits data to the high-precision magnetic encoder 21. When the first rotating shaft 22 rotates, the flat gear 23 is also driven to rotate. The rotation of the flat gear 23 drives the speed-increasing gear 41 to rotate. The speed-increasing gear 41 increases the rotation angle by sixteen times and drives the magnet. The low-power Hall switch is used to measure the magnetic field of the magnet. For every rotation of the magnet, the full-phase Hall switch can generate four pulses and eight level rising and falling edges. In this way, the wire pulling shaft One circle (ten centimeters) corresponds to sixty-four pulses of the Hall and one hundred and twenty-eight level rising and falling edges. Therefore, when the device is in a low-power state, a one-millimeter change in the wire pulling distance can generate an edge to wake up the device, and the device can upload emergency data to achieve real-time response. This real-time response feature allows the device to be in a low-power standby state in most cases. When the flat gear 23 rotates, it will also drive the second shaft 31 to rotate. The rotation of the second shaft 31 transmits the signal to the number of turns magnetic encoder 3. The number of turns magnetic encoder 3 is within the range of a single circle, and the reading is an absolute value. Therefore, the wire pulling shaft is rotated through the reduction gear 32. The multi-turn absolute value encoder can be realized by decelerating the multi-turn to a single turn, and the wheel speed ratio is taken as an integer to facilitate the subsequent multi-turn data processing. During the standby period, the device turns off high-power devices such as 4G data transmission 51, and only keeps the MCU processor 5 and the low-power Hall switch 4 powered. At this time, the power consumption is only tens of microamperes. A ten-ampere battery can be used to work for a long time. In the use of existing detection devices, it is always online, with high power consumption and standby to reduce power consumption and timed wake-up. The power consumption is proportional to the wake-up interval. The shorter the interval, the higher the power consumption, which leads to untimely response and high power consumption. Both of these real-time response methods are based on increased In geological monitoring, due to the limitations of field conditions, batteries are required for power supply, but the power is not sufficient, and the equipment needs to have low power consumption. This device uses the speed-increasing gear 41 to achieve real-time response of emergency data collection and upload, and adopts a timed wake-up mechanism to collect and upload data when there is no obvious displacement change, thereby reducing power consumption while ensuring real-time response. This device adopts a timed wake-up mechanism when there is no obvious displacement change, collects displacement and device status data after waking up, and uploads it to the server. It also has an integrated waterproof design, small size, low power consumption, and lower requirements for the battery system.
[0034] Finally, it should be noted that the above embodiments are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the embodiments. Those skilled in the art will readily appreciate that other variations or modifications based on the above description are possible. It is not necessary and impossible to enumerate all embodiments here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.
Claims
1. A rock formation displacement monitoring device based on a high-precision magnetic encoder, comprising an upper housing (1), characterized in that: The upper housing (1) is provided with a detection structure for facilitating detection of rock stratum displacement; The detection structure comprises a winding roller (2), a turns magnetic encoder (3), a low-power Hall switch (4) and an MCU processor (5); the lower end of the upper shell (1) is fixedly mounted with a lower shell (11); the winding roller (2) is fixedly mounted on the inner side wall of the lower shell (11); the lower end of the winding roller (2) is provided with a high-precision magnetic encoder (21); the turns magnetic encoder (3) is fixedly mounted on the inner side wall of the lower shell (11); the low-power Hall switch (4) is fixedly mounted on the inner side wall of the lower shell (11); the turns magnetic encoder (3), the high-precision magnetic encoder (21), the low-power Hall switch (4) and the MCU processor (5) are connected wirelessly.
2. The rock formation displacement monitoring device based on a high-precision magnetic encoder according to claim 1, characterized in that: A wiring slot (12) is provided at the side end of the upper housing (1).
3. The rock formation displacement monitoring device based on a high-precision magnetic encoder according to claim 2, characterized in that: A first rotating shaft (22) is rotatably mounted on the upper end of the lower housing (11), and a spur gear (23) is fixedly mounted on the circumferential end of the first rotating shaft (22).
4. The rock formation displacement monitoring device based on a high-precision magnetic encoder according to claim 3, characterized in that: The first rotating shaft (22) is rotatably mounted on the inner side wall of the high-precision magnetic encoder (21), and the output end of the turn number magnetic encoder (3) is fixedly mounted with a second rotating shaft (31); A reduction gear (32) is fixedly mounted on the circumferential end of the second rotating shaft (31), and the reduction gear (32) is meshed with the flat gear (23).
5. The rock formation displacement monitoring device based on a high-precision magnetic encoder according to claim 4, characterized in that: A third rotating shaft (42) is fixedly mounted on the output end of the low-power Hall switch (4), a speed-increasing gear (41) is fixedly mounted on the circumferential end of the third rotating shaft (42), and the speed-increasing gear (41) and the third rotating shaft (42) are meshed.
6. The rock formation displacement monitoring device based on a high-precision magnetic encoder according to claim 5, characterized in that: The MCU processor (5) is provided with an external watchdog (53), the MCU processor (5) is connected to a 4G data transmission (51), and the MCU processor (5) is also provided with a parameter configuration (52).