CN112668904A - Accurate detection method and system for electric power underground construction channel - Google Patents
Accurate detection method and system for electric power underground construction channel Download PDFInfo
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Abstract
The application relates to the field of electric power underground construction channels, in particular to an accurate detection system for an electric power underground construction channel, which comprises setting risk occurrence influence parameters, wherein the influence parameters comprise the diameter of a tunnel arc-shaped top wall, the load capacity of tunnel arc-shaped top wall surrounding rocks and the convergence force of a tunnel side wall, establishing a BIM (building information modeling) three-dimensional model of a tunnel based on the risk occurrence influence parameters, performing risk estimation through the BIM three-dimensional model, generating a risk evaluation grade, and outputting a risk early warning signal; generating a detection period through the BIM three-dimensional model, and eliminating the possibility of risk occurrence according to the detection period; the relation among the diameter of the tunnel arc-shaped top wall, the loading force of the tunnel arc-shaped top wall surrounding rock and the convergence force of the tunnel side wall is analyzed through the BIM model so as to draw out a conclusion, and when the diameter of the tunnel arc-shaped top wall is fixed, the loading force of the tunnel arc-shaped top wall surrounding rock and the convergence force of the tunnel side wall are in a linear relation. The application has the effect of saving cost.
Description
Technical Field
The application relates to the field of electric power underground construction channels, in particular to an accurate detection method and system for an electric power underground construction channel.
Background
In order to solve the problems of line planning and power supply safety in power grid construction and transformation, beautify cities and coordinate with the surrounding environment, cables are adopted for supplying power in large quantities in medium and low voltage distribution networks in China. Cable tunnels are corridors or tunnel-like structures for accommodating a large number of cables laid on cable supports, the cross-section being arranged in an arch. A plurality of groups of supports are arranged in the tunnel, and various transverse support arms are arranged on the supports to bear various power or control cables. The cable tunnel can protect the cable better, and meanwhile, the cable tunnel is convenient for a maintainer to inspect and maintain the cable.
In the construction process of the underground tunnel, firstly, the underground cable tunnel needs to be excavated, then, support is carried out in the excavated tunnel so as to strengthen the structure of the tunnel, in the excavation process of the underground cable channel, a cable shaft is usually arranged in the vertical direction, and a cable tunnel is usually arranged in the horizontal direction, so that the cable tunnel is excavated and the cable is laid by combining the vertical cable shaft and the horizontal cable tunnel, and when the cable tunnel is arranged in the horizontal direction, collapse accidents easily occur, so that a sensor needs to be arranged in the tunnel in the whole construction process so as to detect the change of parameters in the tunnel, and the possibility of the collapse accidents of the tunnel is reduced.
In view of the above-mentioned related art, the inventor believes that there are disadvantages in that the cable tunnel is generally long in length, large in width and height, and high in cost because more sensor cables need to be installed in the tunnel.
Disclosure of Invention
In order to save construction cost, the application provides an accurate detection method for an electric power underground construction channel.
In a first aspect, the application provides a method for accurately detecting an electric power underground construction channel, which adopts the following technical scheme:
an accurate detection method for an electric power underground construction channel comprises the following steps
Setting risk occurrence influence parameters, wherein the influence parameters comprise the diameter of the arc-shaped top wall of the tunnel, the loading force of surrounding rocks of the arc-shaped top wall of the tunnel and the convergence force of the side wall of the tunnel, establishing a BIM three-dimensional model of the tunnel based on the risk occurrence influence parameters, performing risk assessment based on the BIM three-dimensional model, generating a risk assessment grade, outputting a risk early warning signal based on the risk assessment grade;
setting detection period parameters, carrying out periodic supervision along with the tunnel based on the BIM three-dimensional model to obtain a supervision result, and judging and eliminating the possibility of risk occurrence based on the supervision result;
based on the BIM three-dimensional model, the diameter of the arc-shaped top wall of the tunnel, the loading force of surrounding rocks of the arc-shaped top wall of the tunnel and the convergence force record analysis of the side wall of the tunnel are analyzed, so that the relevance between the three folds is obtained, wherein the relevance comprises the following steps: if the diameter of the arc-shaped top wall is kept unchanged, the loading force of the surrounding rock of the arc-shaped top wall of the tunnel and the convergence force of the side wall of the tunnel are in a linear relationship.
Through adopting above-mentioned technical scheme, carry out the aassessment of risk through BIM three-dimensional model to whole work progress, in the tunnel work progress to reach the effect of guaranteeing constructor and supervision personnel's life and property safety, carry out the periodic risk judgement and get rid of the operation to the construction tunnel through BIM model, reduce the sampling test frequency to having accorded with the safety standard position, in order to reach the purpose that reduces the monitoring cost. If the diameter of tunnel arc roof keeps unchangeable, then the load capacity of tunnel arc roof wall country rock and the convergence of tunnel lateral wall are linear relation each other, when explaining the convergence of tunnel lateral wall changes, the conclusion that the load capacity of tunnel arc roof wall country rock can change, through above-mentioned conclusion, through setting up measuring device at tunnel arc roof, measure the change volume and the rate of change of arc roof wall power, the rate of change of arc roof wall load capacity can be derived, measure one among the two, can be to the risk assessment of carrying on of tunnel, with the setting type and the quantity that reduce measuring device, with the purpose that reaches the reduction cost. The size between the load force that the arc roof received and the convergence of tunnel lateral wall can also be worked out through BIM three-dimensional model to confirm the required supporting force of supporting construction of arc roof and tunnel lateral wall in the tunnel, in order to reach the effect that reduces supporting construction cost.
Preferably, the tunnel is divided into a plurality of construction sections along the length direction of the tunnel, the plurality of construction sections are encoded according to the BIM three-dimensional model, and the encoded construction sections are monitored in real time according to the BIM three-dimensional model.
Through adopting above-mentioned technical scheme, the segmentation is monitored the tunnel, the supervision and the management and control of the tunnel of being convenient for, and be convenient for fix a position the region that has the risk.
Preferably, the detection period parameters include an early stage, a middle stage and a late stage, and the supervision frequency in the early stage > the supervision frequency in the middle stage > the supervision frequency in the late stage.
By adopting the technical scheme, the supervision frequency of construction piles is reduced as the time is prolonged, so that the frequency of data acquisition and processing is reduced, and the memory consumed by data operation is reduced.
In a second aspect, the present application further provides an accurate detection system for an electrical underground construction channel, which adopts the following technical scheme:
the utility model provides a be used for accurate detecting system of electric power underground construction passageway, includes detection module, signal acquisition module, signal transmission module, central processing module and user terminal, detection module is used for taking a sample the pressure of supporting construction to surrounding rock in the tunnel to transmit the sample result to signal acquisition module, signal acquisition module handles the sampling signal to through signal transmission module with sampling signal transmission to central processing module, central processing module is used for generating risk early warning signal and transmits the risk early warning signal to user terminal through signal transmission module.
By adopting the technical scheme, the detection module is used for sampling the pressure of surrounding rocks and a supporting structure in the tunnel, the signal acquisition module is used for processing a sampling signal and outputting the sampling signal to the central processing module, the central processing module calculates the sampling signal to generate a risk early warning signal, and the risk early warning signal is transmitted to the user terminal through the transmission module.
Preferably, the signal acquisition module includes amplifying unit, filtering unit, memory cell and encryption unit, amplifying unit is used for improving the signal strength with sampling signal, filtering unit is used for improving sampling signal's stability, memory cell is used for storing sampling signal, encryption unit is used for encrypting the sampling signal of transmission.
Through adopting above-mentioned technical scheme, because the signal is when exporting central processing unit in the tunnel, most need wear out to the shaft from horizontal tunnel, wear out from the shaft, the amplifying unit is used for improving the signal strength of sampling signal in transmission process, with reduce the signal because pass through the decay that the object caused, the filtering unit is used for separating the signal and the noise of sample, with the interference killing feature and the SNR of improvement signal, make the signal of exporting to central processing module comparatively stable, the memory cell is used for storing the data of sampling signal, so that central processing module's calling, make things convenient for looking over of later stage data simultaneously, the encryption unit is used for reducing the condition emergence that appears data leakage, with the interference killing feature when improving signal transmission.
Preferably, the user terminal comprises a field terminal and a remote terminal, the field terminal is communicated with the central processing module through the signal transmission module to receive the early warning signal sent by the central processing module, and the remote terminal is communicated with the central processing module through the signal transmission module to remotely receive the data transmitted by the central processing module.
By adopting the technical scheme, the field terminal can check data in construction site implementation and receive the risk early warning signal, so that constructors and supervision personnel can find problems and positions of the supporting structure in construction in time and protect the supporting structure in time, and the remote terminal can receive tunnel conditions in the construction site externally at the construction site.
Preferably, refuges are arranged in the tunnels, a plurality of refuges are uniformly distributed in each section of tunnel, the number of refuges in each section of tunnel is at least one, and positioning devices are arranged in the refuges.
By adopting the technical scheme, a plurality of tunnels where refuges are located are arranged at intervals, so that the escape distance of construction personnel is reduced when safety accidents happen, and the life and property safety of users is protected to a greater extent.
Preferably, the refuge device is a pit body arranged on a horizontal plane in the tunnel, a top cover is arranged on a pit opening of the pit body, the top cover is arranged at the pit opening, an escape opening is formed in the top cover, and a sealed door is arranged on the escape opening.
By adopting the technical scheme, when a constructor in the tunnel escapes, the closed door is opened and enters the base body through the escape opening, when the section of tunnel safely passes through the detection period, the top cover is removed, and the pit body is filled with soil, so that the temporary refuge effect is achieved.
Drawings
FIG. 1 is a rectangular coordinate system establishing diagram for analysis of influencing factors in an accurate detection method of an electric underground construction channel.
Fig. 2 is a connection block diagram of an accurate detection system for an electric underground construction passage according to the present application.
Fig. 3 shows a connection housing of the amplifying unit, the filtering unit, the storage unit, and the encrypting unit.
Fig. 4 is a schematic sectional view showing a tunnel section.
Fig. 5 is a schematic view of the overall structure of the supporting structure.
FIG. 6 is a schematic sectional view of the shelter.
Reference numerals: 1. a detection module; 2. a signal acquisition module; 20. an amplifying unit; 21. a filtering unit; 22. a storage unit; 23. an encryption unit; 3. a signal transmission module; 4. a central processing module; 5. a user terminal; 50. a field terminal; 500. a field PC terminal; 501. a field mobile terminal; 51. a remote terminal; 510. a remote PC terminal; 511. a remote mobile terminal; 6. supporting an arch frame; 60. supporting ribs; 600. supporting arch ribs; 601. supporting the longitudinal ribs; 61. connecting ribs; 7. a pit body; 8. a top cover; 80. an escape opening; 81. a sealed door.
Detailed Description
The present application is described in further detail below with reference to figures 1-6.
The embodiment of the application discloses a method for accurately detecting an electric power underground construction channel.
Referring to fig. 1, the method for accurately detecting the electric underground construction passage comprises the following steps.
And establishing a BIM three-dimensional model of the tunnel.
The structure in this application tunnel sets up to the cross-section for arched rectangular shape structure, and the inside supporting construction that is provided with in tunnel, supporting construction are used for supporting the arc roof in tunnel and the inside wall in tunnel. Meanwhile, the tunnel is excavated, and a supporting structure is arranged on the side wall of the excavated tunnel and used for supporting the inner wall of the tunnel. And acquiring the structural parameters of the excavated tunnel by using equipment in the process of excavating each section of tunnel, and monitoring the changes of the surrounding rocks of the constructed section and the structure of the supporting structure.
The method comprises the steps of setting influence parameters of risk occurrence in a BIM three-dimensional model, specifically, the influence parameters comprise factors such as tunnel arc-shaped top wall surrounding rock load force, tunnel side wall convergence force and the diameter size of a tunnel arc-shaped top wall, taking a time period as an independent variable, evaluating risks through the BIM three-dimensional model by measuring the variation of influence factor data in the period, generating a risk evaluation grade, and sending a risk early warning signal according to the risk evaluation grade.
Specifically, the risk assessment level comprises a primary risk, a secondary risk and a tertiary risk, and the structure of the tunnel is in a stable state under the tertiary risk; under the secondary risk, the position of the unstable structure exists in the tunnel, so that the possibility of collapse is further shown, and the supporting structure needs to be reinforced for the second time; the first-level risk is an evacuation signal, at the moment, the possibility of collapse of the tunnel is high, and constructors in the tunnel should evacuate immediately.
Divide into a plurality of construction district section with the tunnel along the length direction of tunnel in BIM three-dimensional model to utilize BIM three-dimensional model to encode each construction district section, in this embodiment, the code is the displacement identification code of each construction district section, and then, the identification code through the displacement can confirm fast that corresponds the construction district section, this application is along the excavation direction in tunnel, divide into one section with every 100 meters in tunnel, from one end to the other end code value in tunnel 001, 002, 003 … … in proper order, if last section is less than and equals 50 meters, then in the code of one section tunnel before with this section tunnel, if last section tunnel is greater than 50 meters, then independently encode this section tunnel according to the order.
Setting detection period parameters, carrying out periodic supervision on the tunnel according to the segmentation of the tunnel based on the BIM three-dimensional model to obtain a supervision structure, and judging and eliminating the possibility of the occurrence of the risk based on the supervision structure.
The detection period parameters are set to be a front period, a middle period and a rear period, the front period is 7 days after the tunnel excavation is finished, the middle period is 7 days to 14 days, and the rear period is 14 days to 21 days.
During early detection, the data sampling frequency is three times a day, namely 0 point, 8 points and 16 points, data are collected and recorded once every half hour, and the average number of the data is input into the BIM as the detection results of the 0 point, the 8 points and the 16 points;
during the middle detection, the data sampling frequency is once a day and 12 points of the day, the data is collected and recorded once every other hour, and the average number of the data is used as the detection result of the day and is input into the BIM three-dimensional model.
During later detection, the data sampling frequency is once every two days, the data are 0 point on the next day, the data are collected and recorded once every two hours, and the average number of the data is used as the detection result of the day and is input into the BIM three-dimensional model.
Based on the transmitted data, the time is used as an abscissa, the sampling data is used as an ordinate, a curve graph of the data change rate is drawn in the BIM three-dimensional model, when the data change condition of the construction section in the detection period is stable, the construction section is regarded as safe after the detection period, and the coded construction section is marked as unsafe based on the BIM three-dimensional model. When the data change is detected to be abnormal, a user adds a supporting structure in the abnormal construction section, monitors according to the detection period again after adding the supporting structure until the data are recovered to be normal.
Analysis of influencing factors
The supporting structure mainly carries out the support of structure to the lateral wall in tunnel and the arc roof in tunnel, and the lateral wall in tunnel that supporting structure received still receives the convergence power that the lateral wall of tunnel given supporting structure horizontal direction to the inside pressure in tunnel.
The vertex that the arc arm butt with supporting construction and tunnel is A point, and the tie point of arc arm and lateral wall is B point and C point respectively, and the height of B point and C point equals. As shown in FIG. 1, a rectangular coordinate system is established with B as the origin of coordinates, and the load force received by point A is
The supporting structure at the point B is subjected to the force from the tunnel
The transverse component force at point B is
A longitudinal component of force
The force from the tunnel to which the C-point supporting structure is subjected is
The transverse component force at point C is
A longitudinal component of force
Setting the radius of the tunnel as r,
because of the fact that
Therefore, it is not only easy to use
Therefore, it is not only easy to use
therefore, it is not only easy to use
The uniformly distributed load of the arc-shaped top wall of the tunnel is q
Draw conclusions
From the above analysis, one conclusion can be drawn: if the radius of the tunnel remains constant, the lateral force to which the supporting structure is subjected
The uniform load q of the arc top wall is in a positive correlation relationship, so that the larger the convergence force of the side surfaces at two sides is, the larger the uniform load at the arc surface of the tunnel is.
When laying detection device, only need set up detection device at the supporting construction of side direction, can detect the pressure of the tunnel arc roof that department top supporting construction received to and the convergence power of the tunnel lateral wall that supporting construction received, saved and laid a plurality of detection device and the cost of spending on tunnel arc roof.
Also can draw a conclusion of two
If the diameter of the arc wall of the tunnel is larger than
When the rice is used, the rice is mixed with the rice,
the uniform load q is greater than the arc top wall, so that the strength of the supporting structure for the side wall is greater than that of the supporting structure for the arc wall when the supporting structure is arranged;
if the diameter of the arc wall of the tunnel is smaller than
When the rice is used, the rice is mixed with the rice,
the uniform load q is smaller than that of the arc top wall, so that the strength of the supporting structure for the arc wall is greater than that of the supporting structure for the side wall;
if the diameter of the tunnel arc wall isIs equal to
When the rice is used, the rice is mixed with the rice,
equal to the uniform load q of the arc-shaped top wall, so that the strength of the supporting structure for the side wall is equal to the strength of the supporting structure for the arc-shaped wall.
Generating a numerical value of the radius r of the arc wall of the tunnel by using a person to input the numerical value into the BIM three-dimensional model
The ratio of the uniform load q of the arc-shaped top wall is larger than that of the arc-shaped top wall, so that the material of the supporting structure is determined.
The embodiment of the application also discloses an accurate detection system for the electric power underground construction channel.
Referring to fig. 2, the accurate detection system for the electric power underground construction channel comprises a detection module 1, a signal acquisition module 2, a signal transmission module 3, a central processing module 4 and a user terminal 5, wherein the signal acquisition module 2 is communicated with the detection module 1 and the signal transmission module 3, the signal transmission module 3 is communicated with the signal acquisition module 2 and the central processing module 4, and the signal transmission module 3 is also communicated with the central processing module 4 and the user terminal 5. The detection module 1 is used for detecting environmental parameters in a tunnel, the signal acquisition module 2 is used for collecting the environmental parameters and processing signals, the central processing module 4 is used for calculating the collected environmental parameters and generating risk early warning signals, and the user terminal 5 obtains the risk early warning signals through the signal transmission module 3.
Referring to fig. 3, the signal acquisition module 2 includes an amplification unit 20, a filtering unit 21, a storage unit 22 and an encryption unit 23, the amplification unit 20 communicates with the detection module 1, the filtering unit 21 communicates with the amplification unit 20 and the storage unit 22, the encryption unit 23 communicates with the storage unit 22, the amplification unit 20 is configured to improve the signal strength of the sampled signal in the transmission process, so as to reduce the attenuation caused by the signal passing through an object, and the filtering unit 21 is configured to separate the sampled signal from noise, so as to improve the anti-interference performance and the signal-to-noise ratio of the signal. The storage unit 22 is used for storing the sampling signal so as to be convenient for calling the sampling signal, and the encryption unit 23 is used for improving the security of data transmission, improving the anti-interference capability during signal transmission and reducing the occurrence of data leakage.
Referring to fig. 4 and 5, the supporting structure includes supporting arch 6, supporting arch 6 includes a plurality of brace bars 60 and horizontal connecting rib 61 that sets up, and brace bar 60 is the arch setting, and the even interval in the length direction along the tunnel sets up, and connecting rib 61 is used for connecting adjacent brace bar 60. The support rib 60 includes that the support encircles muscle 600 and supports and indulge muscle 601, and the muscle 601 sets up in pairs to support, supports the both ends of encircleing muscle 600 and supports the top welding of indulging muscle 601, and the parallel interval of splice bar 61 sets up and is supporting the confession muscle and support and indulge between the muscle 601. The support arch ribs 600 are additionally arranged among the support ribs 60, so that support can be added to the top of the support structure, and the support longitudinal ribs 601 are additionally arranged among the support ribs 60, so that support can be added to the side walls of the support structure.
Detection module 1 includes a plurality of pressure sensor and surveyor's level, and pressure sensor sets up on the muscle 601 is indulged in the support, and pressure sensor sets up and indulges between muscle 601 and the tunnel lateral wall in the support, and pressure sensor is used for detecting supporting construction's side direction supporting power. The surveyor's level sets up on the ground, and the surveyor's level is used for detecting the settlement condition of earth's surface to detect the settlement condition of tunnel top earth's surface, in order to avoid appearing the engineering accident that the earth's surface subsides too big and lead to.
The signal transmission module 3 comprises a WIFI unit and a GPRS unit, the WIFI unit is used for providing short-distance data connection for the field user terminal 5, and the GPRS unit is used for providing long-distance mobile data communication for the user terminal 5. The WIFI unit is arranged to facilitate receiving of data of workers in the tunnel.
Referring to fig. 2, the user terminal 5 includes a field terminal 50 and a remote terminal 51, a constructor on the site can receive collected environmental parameters in real time through the field terminal 50, the remote terminal 51 is used for remotely monitoring a construction site, the field terminal 50 includes a field PC terminal 500 and a field mobile terminal 501, the field PC terminal 500 can enable the constructor and the manager in the tunnel to view data in real time, and the field mobile terminal 501 can enable the constructor and the manager in the tunnel to view data and receive a risk early warning signal through a mobile phone. When the risk early warning signal received by the field user terminal 5 is a second-level risk, field users timely perform supporting strengthening operation on the tunnel corresponding to the code, and when the early warning signal received by the field user terminal 5 is a first-level risk, field workers immediately evacuate from a construction field in a dangerous construction section so as to protect life and property safety of the field workers. The remote terminal 51 includes a remote PC terminal 510 and a remote mobile terminal 511, and the remote PC terminal 510 and the remote mobile terminal 511 are used for enabling an above-ground worker to grasp the environmental parameters of the underground construction tunnel in real time.
Referring to fig. 6, refuges are arranged in each section of tunnel, are arranged in the middle of each section of tunnel, are temporarily refuged on a horizontal plane in the tunnel, are arranged as a pit body 7, are provided with a top cover 8 on the pit body 7, are erected at the pit mouth of the pit body 7 by the top cover 8, are made of steel plates, are provided with escape openings 80 on the top cover 8, are provided with sealed doors 81, are hinged to the top cover 8, can cover the escape openings 80 by the sealed doors 81, and are arranged in a flush manner with the upper surface of the top cover 8.
The interior of the pit body 7 is provided with a GPRS positioning device for positioning the position of the refuge place in the corresponding coding tunnel, when an accident happens, the corresponding accident tunnel coding can be positioned through the BIM three-dimensional model, rescue workers can conveniently inquire the position of the refuge place in the accident tunnel, and the interior of the pit body 7 is provided with various lifesaving materials, wherein the lifesaving materials comprise water, food, oxygen cylinders, a heating quilt and the like, so that air, temperature, food and the like for the survival of the users can be supplied.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The method for accurately detecting the electric underground construction channel is characterized by comprising the following steps of: comprises that
Setting risk occurrence influence parameters, wherein the influence parameters comprise the diameter of the arc-shaped top wall of the tunnel, the loading force of surrounding rocks of the arc-shaped top wall of the tunnel and the convergence force of the side wall of the tunnel, establishing a BIM three-dimensional model of the tunnel based on the risk occurrence influence parameters, performing risk assessment based on the BIM three-dimensional model, generating a risk assessment grade, outputting a risk early warning signal based on the risk assessment grade;
setting detection period parameters, carrying out periodic supervision along with the tunnel based on the BIM three-dimensional model to obtain a supervision result, and judging and eliminating the possibility of risk occurrence based on the supervision result;
based on the BIM three-dimensional model, the diameter of the arc-shaped top wall of the tunnel, the loading force of surrounding rocks of the arc-shaped top wall of the tunnel and the convergence force record analysis of the side wall of the tunnel are analyzed, so that the relevance between the three folds is obtained, wherein the relevance comprises the following steps: if the diameter of the arc-shaped top wall is kept unchanged, the loading force of the surrounding rock of the arc-shaped top wall of the tunnel and the convergence force of the side wall of the tunnel are in a linear relationship.
2. The accurate detection method for the electric underground construction channel according to claim 1, wherein: the method comprises the steps of dividing a tunnel into a plurality of construction sections along the length direction of the tunnel, recording and coding the plurality of construction sections based on a BIM three-dimensional model, and monitoring the coded construction sections in real time based on the BIM three-dimensional model.
3. The accurate detection method for the electric underground construction channel as claimed in claim 2, wherein: the detection period parameters comprise an early stage, a middle stage and a later stage, and the supervision frequency in the early stage is greater than the supervision frequency in the middle stage and is greater than the supervision frequency in the later stage.
4. The utility model provides a be used for accurate detecting system of electric power underground construction passageway which characterized in that: the accurate detection system for the electric power underground construction channel comprises a detection module (1), a signal acquisition module (2), a signal transmission module (3), a central processing module (4) and a user terminal (5), wherein the detection module (1) is used for sampling the pressure of a surrounding rock in a tunnel to a supporting structure and transmitting a sampling signal to the signal acquisition module (2), the signal acquisition module (2) processes the sampling signal and transmits the sampling signal to the central processing module (4) through the signal transmission module (3), and the central processing module (4) is used for generating a risk early warning signal and transmitting the risk early warning signal to the user terminal (5) through the signal transmission module (3).
5. The system for accurately detecting the electric underground construction channel according to claim 4, wherein: the signal acquisition module (2) includes amplifying unit (20), filtering unit (21), memory cell (22) and encryption unit (23), amplifying unit (20) are used for improving the signal strength with sampling signal, filtering unit (21) are used for improving sampling signal's stability, memory cell (22) are used for storing sampling signal, encryption unit (23) are used for encrypting the sampling signal of transmission.
6. The system for accurately detecting the electric underground construction channel according to the claim 5, is characterized in that: the user terminal (5) comprises a field terminal (50) and a remote terminal (51), the field terminal (50) is communicated with the central processing module (4) through the signal transmission module (3) so as to receive an early warning signal sent by the central processing module (4) on a construction site, and the remote terminal (51) is communicated with the central processing module (4) through the signal transmission module (3) so as to remotely receive data transmitted by the central processing module (4).
7. The system for accurately detecting the electric underground construction channel according to claim 4, wherein: the refuge shelter is characterized in that a plurality of refuge shelters are arranged in the tunnel and uniformly distributed in each section of tunnel, the number of the refuge shelters in each section of tunnel is at least one, and a positioning device is arranged in each refuge shelter.
8. The system for accurately detecting the electric underground construction channel according to claim 7, wherein: the refuge is set up to the pot body (7) of seting up on the horizontal plane in the tunnel, be provided with top cap (8) on the pithead of pot body (7), top cap (8) lid is established in pithead department, be provided with escape opening (80) on top cap (8), be provided with sealed door (81) on escape opening (80).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202011635053.2A CN112668904A (en) | 2020-12-31 | 2020-12-31 | Accurate detection method and system for electric power underground construction channel |
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