CN113589717A - Intelligent sensing early warning terminal for pit tunnel operation - Google Patents
Intelligent sensing early warning terminal for pit tunnel operation Download PDFInfo
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- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0428—Safety, monitoring
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- G—PHYSICS
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- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
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Abstract
The invention belongs to the technical field of pit and tunnel construction, and particularly relates to an intelligent sensing early warning terminal for pit and tunnel operation, which comprises a moving mechanism, a control mechanism and an intelligent sensing mechanism; the moving mechanism is provided with a remote controller matched with the moving mechanism, receives the instruction of the remote controller and advances according to the instruction path, and is provided with a hollow inner cavity; the control mechanism can be hidden and stored in the hollow inner cavity of the moving mechanism and can be unfolded as required, and comprises a PLC (programmable logic controller) and a GPRS (general packet radio service) module; the intelligent sensing mechanism is detachably mounted at the head of the moving mechanism and comprises a water level sensor and a flow sensor and is used for monitoring water level information of a pit tunnel monitoring point, transmitting the monitoring information to the PLC for data processing, and then synchronously transmitting the processed data information to the cloud server and a mobile phone of a field worker through the GPRS module. The invention has advanced technology and convenient operation, and can realize dynamic remote intelligent management of big data of the pit and tunnel construction.
Description
Technical Field
The invention belongs to the technical field of pit and tunnel construction, and particularly relates to an intelligent sensing early warning terminal for pit and tunnel operation.
Background
For foundation pits with abundant underground water and poor soil conditions, the effectiveness and the construction practicability of realizing precipitation are always the problems discussed in the field of geotechnical engineering. Especially in the area with abundant underground water resources, if the precipitation treatment is not timely, the underground water frequently surges after the subsequent bottom plate construction is finished, so that the bottom plate structure is cracked, and the complex and huge repairing cost of the subsequent structure construction is increased.
With the continuous expansion of urban construction, the available space of urban ground is reduced year by year, resulting in more and more underground space development and utilization. In recent years, underground engineering construction is rapidly developed, engineering scale is larger and larger, underground structure is more and more complex, underground water is more and more strictly controlled, and safety problems caused by underground water are more and more. Therefore, the influence of the underground water on the construction of the urban pit and tunnel is valued by a plurality of scholars, including the influence of the underground water on the safety and later-stage operation of tunnel construction, and a plurality of application achievements are summarized. With the increase of underground engineering construction and the protection of China to underground water resources in recent years, underground water level has a tendency of rising again, but the influence of underground water level on underground structure is hardly concerned, and the research on the aspect is insufficient, so that a lot of disasters caused by underground water level rising again cannot be brought to the end.
The underground environment where the tunnel surrounding rock is located changes, and the stress strain field of the tunnel surrounding rock changes correspondingly. Along with the rising of the underground water level around the tunnel surrounding rock, the stress of the side wall part of the tunnel is gradually increased, the negative bending moment is correspondingly increased, the positive bending moment of the arch top and the arch bottom is increased, and the point with the maximum stress change is positioned at the arch waist part of the tunnel; with the continuous rising of the underground water level, the effective stress of the soil body is reduced, the pore water pressure is increased, and the negative bending moment of the side wall of the tunnel and the positive bending moment of the bottom and the top of the arch are gradually reduced. Although the maximum bending moment is reduced, the conversion of negative bending moment may occur in the tunnel surrounding rock structure, and the negative bending moment is opposite to the designed bending moment, so that the safety and stability of the structure are not good.
Therefore, a Chinese patent with the publication number of CN209975495U discloses a monitoring and alarming device for foundation pit well point precipitation, which comprises a well body, wherein an upright post is movably mounted in an inner cavity of the well body, a plurality of reinforcing rods are movably connected to two sides of the upright post, a plurality of liquid level sensors are sequentially and movably connected to the front surface of the upright post from top to bottom, a shell is fixedly connected to the top of the upright post, a photovoltaic panel is fixedly connected to the top of the shell, an inverter is fixedly connected to the left side of the top of the inner cavity of the shell, a single chip microcomputer is fixedly connected to the left side of the bottom of the inner cavity of the shell, and a timer is fixedly connected to the inner cavity of the shell and positioned on the right side of the single chip microcomputer; the right side of the top of the inner cavity of the shell is fixedly connected with a power supply block, and the surfaces of the upright posts and the reinforcing rods are coated with anti-corrosion layers; the two sides of the shell are both fixedly connected with speakers, and dust covers are arranged on the surfaces of the speakers; the front surface of the shell is fixedly connected with a first display and a second display in sequence from top to bottom, and protective glass is arranged on the surfaces of the first display and the second display; the back of the shell is movably connected with radiating fan blades, and the back of the shell is movably connected with a mesh enclosure. Adopt this kind of monitoring alarm device, when the highest level sensor detected the water level, show that the inside liquid level of well body has been too high, singlechip control speaker this moment sends the alarm of raising one's voice to the staff to make things convenient for the staff in time to take safety measure.
However, the structural design of the prior art is more traditional, the technology is laggard, the operation is troublesome, the intelligent management is not realized, and the dynamic remote intelligent management of the big data of the pit and tunnel construction can not be realized.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides an intelligent sensing early warning terminal for pit and tunnel operation, which is used for solving the problems that the structural design is more traditional, the technology is laggard, the operation is troublesome, the operation is not intelligent, and the dynamic remote intelligent management of big data of pit and tunnel construction cannot be realized in the prior art.
In order to solve the technical problems, the invention adopts the following technical scheme:
an intelligent sensing early warning terminal for pit well tunnel operation comprises a moving mechanism, a control mechanism and an intelligent sensing mechanism;
the moving mechanism is provided with a remote controller matched with the moving mechanism, receives the instruction of the remote controller and advances according to an instruction path, and is provided with a hollow inner cavity;
the control mechanism can be hidden and stored in the hollow inner cavity of the moving mechanism and can be unfolded as required, and comprises a PLC (programmable logic controller) and a GPRS (general packet radio service) module;
the intelligent sensing mechanism is detachably mounted at the head of the moving mechanism and comprises a water level sensor and a flow sensor, the water level sensor is used for monitoring water level information of a pit tunnel monitoring point, monitoring information is transmitted to the PLC for data processing, and then the processed data information is synchronously transmitted to the cloud server and a mobile phone of a field worker through the GPRS module.
Furthermore, the moving mechanism comprises a detection box body, a support shaft, an arc-shaped cross beam, a drive shaft, a crawler and a detection box cover;
the tail part of the detection box cover is hinged with the tail part of the detection box body, and the detection box cover and the detection box body are closed to form a box-shaped structure with a hollow inner cavity;
the supporting shaft is fixedly arranged in the middle of the bottom of the detection box body and is vertical to the detection box body;
the two arc-shaped cross beams are arranged, notches of the two arc-shaped cross beams are downward, and the two arc-shaped cross beams are respectively arranged at the left end and the right end of the supporting shaft;
the four driving shafts are respectively arranged at the head end and the tail end of the arc-shaped cross beam;
the crawler belt is wound on the driving shaft and is driven by the driving shaft.
Furthermore, the detection box body and the detection box cover are designed into a streamline structure with a small head and a big tail.
Furthermore, three support legs are uniformly arranged on the driving shaft in the radial direction, and a rotating shaft is arranged at the tail ends of the support legs;
the rotating shaft is meshed with the inner wall tooth part of the crawler belt.
Furthermore, the control mechanism also comprises a control box body, a slide rail, a support leg and a support;
the control box body is of a hollow cylindrical structure, and the PLC and the GPRS module are installed in the control box body;
the sliding rails are four and are uniformly arranged on the periphery of the control box body, sliding grooves are formed in the sliding rails from top to bottom, the upper ends of the supporting legs are in sliding fit with the sliding grooves and can slide up and down along the sliding grooves and be fixed as required, and the bottoms of the supporting legs are fixed with the support.
Further, control mechanism still include the connecting rod, the one end of connecting rod is fixed with the upper segment of stabilizer blade, the other end of connecting rod is articulated with the outer wall of control box.
Furthermore, the intelligent sensing mechanism also comprises a fixed rod and a water outlet pipe;
the tail end of the fixed rod is detachably connected with the head of the detection box body, the water outlet pipe is coaxial with the fixed rod, and the water inlet end of the water outlet pipe is communicated with the water outlet end of the bottom of the flow sensor, so that a T-shaped structure is formed;
the water level sensor is a floating ball liquid level sensor and comprises a swing rod and a floating ball, the upper end of the swing rod is fixed with the water outlet pipe, and the lower end of the swing rod is fixed with the floating ball.
Furthermore, the water level sensor is a TEBSDI-12 liquid level sensor.
Furthermore, the flow sensor adopts an electronic sensor of Shanghai Jia map SN 51B.
Further, the PLC controller is developed by adopting an STC15 single chip microcomputer, and the cloud server is communicated with the GPRS module through a TCP/IP protocol.
Compared with the prior art, the invention has the following beneficial effects:
1. when the system is used, the moving mechanism receives an instruction of the remote controller and moves to a point to be measured according to an instruction path, then the water level sensor and the flow sensor are installed, the water level information of the pit and tunnel monitoring point can be monitored, the monitoring information is transmitted to the PLC for data processing, and then the processed data information is synchronously transmitted to the cloud server and a mobile phone of a field worker through the GPRS module. In the monitoring process, if the water level information received by the PLC exceeds a preset value, the PLC outputs an early warning signal, the early warning signal is synchronously transmitted to the cloud server and the mobile phones of field personnel through the GPRS module, and the field personnel immediately take corresponding measures after receiving the early warning signal so as to eliminate hidden danger.
2. Because the afterbody of surveying the case lid is articulated with the afterbody of surveying the box, survey the case lid and close into a cavity hollow boxlike structure with surveying the box, so can hide the control mechanism and receive in the cavity inner chamber that surveys the case lid and survey the box and close, also can dismantle intelligent sensing mechanism gets off, puts into the cavity inner chamber that surveys the case lid and survey the box and close to reduce the space that overall structure occupied, design benefit, convenient operation.
3. The detection box body and the detection box cover are designed into a streamline structure with a small head and a big tail, so that the resistance is greatly reduced in the advancing process, and the advancing is smoother.
4. Three support legs are uniformly arranged on the driving shaft in the radial direction, and a rotating shaft is arranged at the tail ends of the support legs; the inner wall tooth portion intermeshing of axis of rotation and track, not only the operation of track is more stable, and overall structure can adapt to unevenness's job site moreover, and the climbing is marchd more smoothly, design benefit.
5. Because the control mechanism also comprises a control box body, a slide rail, a support leg and a support, when monitoring is needed, the control box body is lifted to a proper height and then fixed, so that the control mechanism is unfolded; on the contrary, after the monitoring is finished, the control box body is pressed down to a proper height and then fixed, so that the control mechanism is hidden, stored and released, and the space is saved.
6. Because the one end of connecting rod is fixed with the upper segment of stabilizer blade, and the other end of connecting rod is articulated with the outer wall of control box, so go upward at the control box or descending in-process, the swing of stabilizer blade is more smooth and easy.
7. Because the outlet pipe is coaxial with the dead lever, the end of intaking of outlet pipe is linked together with flow sensor's bottom delivery end to constitute T shape structure, so realized level sensor and flow sensor's integrated integration, not only facilitate the use, the structure is compacter moreover, and the most crucial is that, the monitoring error is less than the monitoring error that starts level sensor or flow sensor alone when starting level sensor and flow sensor simultaneously and monitoring.
8. The water level sensor adopts a TEBSDI-12 liquid level sensor, senses the height of the water level through the pressure change of water, and outputs a digital signal to an acquisition unit in the PLC through RS 485.
9. The flow sensor adopts Shanghai Jia picture SN51B electronic type sensor for detect the inflow flow, when water passes through the rivers rotor subassembly, the rotor rotates and the rotational speed changes along with flow change, outputs corresponding pulse signal and feeds back to the PLC controller, judges the size of discharge by the PLC controller, regulates and control. The device has the advantages of small volume, simple and convenient setting and the like, and can set the upper and lower flow limit alarm values at will.
10. Because the PLC controller is internally provided with the high-precision R/C clock and the high-reliability reset circuit, the communication speed is high, and the anti-interference capability is strong. The acquisition unit of the PLC is communicated with the water level sensor and the flow sensor through the RS485 serial port, water level data are acquired every 5min, and the data are uploaded to the cloud server through the GPRS module. The cloud server selects the Aliyun ECS, reliable remote data storage service can be obtained through a renting mode, and the manual operation cost is reduced. The cloud server is communicated with the GPRS module and the application layer through a TCP/IP protocol, and monitoring data can be pushed to mobile phones of system administrators and field personnel by utilizing transparent transmission setting provided by the cloud server.
Drawings
Fig. 1 is a schematic plan structure diagram of an embodiment of an intelligent sensing early warning terminal for pit and tunnel operation according to the present invention;
fig. 2 is a schematic perspective view of an embodiment of an intelligent sensing and early warning terminal for pit and tunnel operation according to the present invention;
fig. 3 is a schematic perspective view of a moving mechanism in an embodiment of an intelligent sensing and early warning terminal for pit and tunnel operation according to the present invention;
FIG. 4 is a schematic view of a connection structure of a driving shaft and a track in an embodiment of an intelligent sensing and early warning terminal for pit and tunnel operation according to the present invention;
FIG. 5 is a schematic perspective view of a control mechanism in an embodiment of an intelligent sensing and early warning terminal for well tunnel operation according to the present invention;
fig. 6 is a schematic perspective view of an intelligent sensing mechanism in an embodiment of an intelligent sensing early warning terminal for pit and tunnel operation according to the present invention;
fig. 7 is a schematic circuit diagram of an embodiment of an intelligent sensing and early warning terminal for a well tunnel operation according to the present invention.
Detailed Description
In order that those skilled in the art can better understand the present invention, the following technical solutions are further described with reference to the accompanying drawings and examples.
Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
Examples
As shown in fig. 1-7, the intelligent sensing and early warning terminal for the pit and tunnel operation of the invention comprises a moving mechanism 1, a control mechanism 2 and an intelligent sensing mechanism 3;
the moving mechanism 1 is provided with a remote controller matched with the moving mechanism 1, the moving mechanism 1 receives the instruction of the remote controller and moves along the instruction path, and the moving mechanism 1 is provided with a hollow inner cavity;
the control mechanism 2 can be hidden and stored in the hollow inner cavity of the moving mechanism 1 and can be unfolded as required, and the control mechanism 2 comprises a PLC (programmable logic controller) and a GPRS (general packet radio service) module;
the intelligent sensing mechanism 3 is detachably mounted at the head of the moving mechanism 1, the intelligent sensing mechanism 3 comprises a water level sensor and a flow sensor 32 and is used for monitoring water level information of a pit tunnel monitoring point, transmitting the monitoring information to a PLC (programmable logic controller) for data processing, and then synchronously transmitting the processed data information to a cloud server and a mobile phone of a field worker through a GPRS (general packet radio service) module.
The moving mechanism 1 comprises a detection box body 10, a support shaft 11, an arc-shaped cross beam 12, a drive shaft 13, a crawler 14 and a detection box cover 15;
the tail part of the detection box cover 15 is hinged with the tail part of the detection box body 10, and the detection box cover 15 and the detection box body 10 are closed to form a box-shaped structure with a hollow inner cavity;
the supporting shaft 11 is fixedly arranged at the middle position of the bottom of the detection box body 10, and the supporting shaft 11 is vertical to the detection box body 10;
the two arc-shaped cross beams 12 are arranged, notches of the two arc-shaped cross beams are downward, and the two arc-shaped cross beams 12 are respectively arranged at the left end and the right end of the supporting shaft 11;
four driving shafts 13 are arranged, and the four driving shafts 13 are respectively arranged at the head end and the tail end of the arc-shaped cross beam 12;
the crawler 14 is wound around the drive shaft 13 and is driven by the drive shaft 13.
The detection box body 10 and the detection box cover 15 are designed into a streamline structure with a small head and a big tail.
Three support legs are uniformly arranged on the driving shaft 13 in the radial direction, and rotating shafts are arranged at the tail ends of the support legs;
the rotating shaft intermeshes with the inner wall teeth of the track 14.
The control mechanism 2 further comprises a control box body 20, a slide rail 21, a support leg 22 and a support 24;
the control box body 20 is of a hollow cylindrical structure, and the PLC and the GPRS module are installed in the control box body 20;
the slide rail 21 sets up four and evenly installs in the periphery of control box 20, and slide rail 21 has seted up the spout from top to bottom, and the upper end and the spout sliding fit of stabilizer blade 22 can slide from top to bottom along the spout and fix as required, and the bottom and the support 24 of stabilizer blade 22 are fixed.
The control mechanism 2 further comprises a connecting rod 23, one end of the connecting rod 23 is fixed with the upper section of the supporting leg 22, and the other end of the connecting rod 23 is hinged with the outer wall of the control box body 20.
The intelligent sensing mechanism 3 also comprises a fixed rod 30 and a water outlet pipe 31;
the tail end of the fixed rod 30 is detachably connected with the head of the detection box body 10, the water outlet pipe 31 is coaxial with the fixed rod 30, and the water inlet end of the water outlet pipe 31 is communicated with the water outlet end at the bottom of the flow sensor 32, so that a T-shaped structure is formed;
the water level sensor is a floating ball liquid level sensor and comprises a swing rod 33 and a floating ball 34, the upper end of the swing rod 33 is fixed with the water outlet pipe 31, and the lower end of the swing rod 33 is fixed with the floating ball 34.
The water level sensor is a TEBSDI-12 liquid level sensor.
The flow sensor 32 is an electronic sensor of Shanghai Jia map SN 51B.
The PLC is developed by adopting an STC15 single chip microcomputer, and the cloud server is communicated with the GPRS module through a TCP/IP protocol.
When the water level sensor is started alone to monitor the water level, the monitored data are shown in table 1:
TABLE 1 Water level data when starting the Water level sensor alone
| Theoretical height (mm) | Actual height (mm) | Error of the measurement | Theoretical height (mm) | Actual height (mm) | Error of the measurement |
| 45.0 | 46.3 | 1.3 | 70.0 | 68.9 | -1.1 |
| 50.0 | 50.5 | 0.5 | 75.0 | 75.3 | 0.3 |
| 55.0 | 55.7 | 0.7 | 80.0 | 79.9 | -0.1 |
| 60.0 | 58.8 | -1.2 | 85.0 | 86.3 | 1.3 |
| 65.0 | 64.5 | -0.5 | 90.0 | 90.2 | 0.2 |
As can be seen from Table 1, when the water level sensor is started alone for monitoring, the monitoring error is less than or equal to 1.3.
When the flow sensor is started alone for flow monitoring, the monitored data are shown in table 2:
TABLE 2 flow data when starting up a flow sensor alone
| Theoretical flow (L/min) | Actual flow (L/min) | Error of the measurement |
| 5.00 | 4.83 | -0.17 |
| 6.00 | 6.09 | 0.09 |
| 7.00 | 7.17 | 0.17 |
| 8.00 | 8.12 | 0.12 |
| 9.00 | 8.91 | -0.09 |
| 10.00 | 9.92 | -0.08 |
As can be seen from Table 2, when the flow sensor is started alone for monitoring, the monitoring error is less than or equal to 0.17.
When the water level sensor and the flow sensor are started to monitor simultaneously, the monitored data are shown in table 3:
TABLE 3 monitoring data when starting water level sensor and flow sensor simultaneously
As can be seen from table 3, three valid measurements were actually made. The height of the water level parameter is set to be 50.00mm, the flow rate is set to be 6.00L/min, the first water level measurement value is 49.82mm, and the flow rate measurement value is 5.89L/min. The second water level measurement was 49.79mm and the flow measurement was 5.99L/min. The third water level measurement was 49.82mm and the flow measurement was 5.87L/min. The average value of the three water levels is 49.81mm, the water level error is 0.19mm, and the error is far smaller than the error of monitoring by independently starting the water level sensor; similarly, the average value of the three measured flows is 5.92L/min, the flow error is 0.08, the flow error is far smaller than the error of monitoring by independently starting the flow sensor, and the precision is higher.
In conclusion, the intelligent sensing early warning terminal for the operation of the pit tunnel is advanced in technology and convenient to operate, can realize dynamic remote intelligent management of big data of pit tunnel construction, and is very suitable for large-area popularization and application in the market.
The foregoing are merely exemplary embodiments of the present invention, and no attempt is made to show structural details of the invention in more detail than is necessary for the fundamental understanding of the art, the description taken with the drawings making apparent to those skilled in the art how the several forms of the invention may be embodied in practice with the teachings of the invention. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not indicated or implied that the referred device or element must have a specific orientation, be constructed in a specific orientation and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limitations of the present patent, and the specific meanings of the terms may be understood by those skilled in the art according to specific situations.
In the description of the present invention, unless otherwise explicitly specified or limited, the term "connected" or the like, if appearing to indicate a connection relationship between the components, is to be understood broadly, for example, as being fixed or detachable or integral; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through one or more other components or may be in an interactive relationship with one another. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Claims (10)
1. The utility model provides an intelligence perception early warning terminal for pit well tunnel operation which characterized in that: comprises a moving mechanism (1), a control mechanism (2) and an intelligent sensing mechanism (3);
the moving mechanism (1) is provided with a remote controller matched with the moving mechanism, the moving mechanism (1) receives an instruction of the remote controller and moves along an instruction path, and the moving mechanism (1) is provided with a hollow inner cavity;
the control mechanism (2) can be hidden in a hollow inner cavity of the moving mechanism (1) and can be unfolded as required, and the control mechanism (2) comprises a PLC (programmable logic controller) and a GPRS (general packet radio service) module;
the intelligent sensing mechanism (3) is detachably mounted at the head of the moving mechanism (1), the intelligent sensing mechanism (3) comprises a water level sensor and a flow sensor (32) and is used for monitoring water level information of a pit tunnel monitoring point, transmitting the monitoring information to a PLC (programmable logic controller) for data processing, and then synchronously transmitting the processed data information to a cloud server and a mobile phone of field personnel through a GPRS (general packet radio service) module.
2. The intelligent sensing and early warning terminal for the pit and tunnel operation of claim 1, wherein: the moving mechanism (1) comprises a detection box body (10), a support shaft (11), an arc-shaped cross beam (12), a drive shaft (13), a crawler belt (14) and a detection box cover (15);
the tail part of the detection box cover (15) is hinged with the tail part of the detection box body (10), and the detection box cover (15) and the detection box body (10) are closed to form a box-shaped structure with a hollow inner cavity;
the supporting shaft (11) is fixedly arranged in the middle of the bottom of the detection box body (10), and the supporting shaft (11) is vertical to the detection box body (10);
the two arc-shaped cross beams (12) are arranged, notches of the two arc-shaped cross beams are downward, and the two arc-shaped cross beams (12) are respectively arranged at the left end and the right end of the supporting shaft (11);
four driving shafts (13) are arranged, and the four driving shafts (13) are respectively arranged at the head end and the tail end of the arc-shaped cross beam (12);
the crawler belt (14) is wound on the driving shaft (13) and is driven by the driving shaft (13).
3. The intelligent sensing and early warning terminal for the pit and tunnel operation of claim 2, wherein: the detection box body (10) and the detection box cover (15) are designed into a streamline structure with a small head and a big tail.
4. The intelligent sensing and early warning terminal for the pit and tunnel operation of claim 3, wherein: three support legs are uniformly arranged on the driving shaft (13) in the radial direction, and a rotating shaft is arranged at the tail ends of the support legs;
the rotating shaft is meshed with the inner wall tooth part of the crawler belt (14).
5. The intelligent perception early warning terminal for the operation of the pit and the tunnel according to claim 4, wherein: the control mechanism (2) also comprises a control box body (20), a slide rail (21), a support leg (22) and a support seat (24);
the control box body (20) is of a hollow cylindrical structure, and the PLC and the GPRS module are installed in the control box body (20);
the sliding rail (21) is provided with four parts and is uniformly arranged on the periphery of the control box body (20), the sliding rail (21) is provided with a sliding groove from top to bottom, the upper end of the supporting foot (22) is in sliding fit with the sliding groove and can slide up and down along the sliding groove and be fixed as required, and the bottom of the supporting foot (22) is fixed with the support (24).
6. The intelligent perception early warning terminal for the operation of the pit and the tunnel according to claim 5, wherein: the control mechanism (2) further comprises a connecting rod (23), one end of the connecting rod (23) is fixed with the upper section of the supporting leg (22), and the other end of the connecting rod (23) is hinged to the outer wall of the control box body (20).
7. The intelligent perception early warning terminal for the operation of the pit and the tunnel according to claim 6, wherein: the intelligent sensing mechanism (3) further comprises a fixing rod (30) and a water outlet pipe (31);
the tail end of the fixed rod (30) is detachably connected with the head of the detection box body (10), the water outlet pipe (31) is coaxial with the fixed rod (30), and the water inlet end of the water outlet pipe (31) is communicated with the water outlet end at the bottom of the flow sensor (32), so that a T-shaped structure is formed;
the water level sensor is a floating ball liquid level sensor and comprises a swing rod (33) and a floating ball (34), the upper end of the swing rod (33) is fixed with the water outlet pipe (31), and the lower end of the swing rod (33) is fixed with the floating ball (34).
8. The intelligent perception early warning terminal for the operation of the pit and the tunnel according to claim 7, wherein: the water level sensor is a TEBSDI-12 liquid level sensor.
9. The intelligent perception early warning terminal for the operation of the pit and the tunnel according to claim 8, wherein: the flow sensor (32) adopts an electronic sensor of Shanghai Jia map SN 51B.
10. The intelligent perception early warning terminal for the operation of the pit and the tunnel according to claim 9, wherein: the PLC controller is developed by adopting an STC15 single chip microcomputer, and the cloud server is communicated with the GPRS module through a TCP/IP protocol.
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