CN113419470A - Cable tunnel integrated monitoring system - Google Patents

Cable tunnel integrated monitoring system Download PDF

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Publication number
CN113419470A
CN113419470A CN202110807300.0A CN202110807300A CN113419470A CN 113419470 A CN113419470 A CN 113419470A CN 202110807300 A CN202110807300 A CN 202110807300A CN 113419470 A CN113419470 A CN 113419470A
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module
cable
early warning
information
monitoring information
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Inventor
李�雨
张帅
陈小雨
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Zhengzhou Xiangyu Electric Technology Co ltd
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Zhengzhou Xiangyu Electric Technology Co ltd
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    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00Programme-control systems
    • G05B19/02Programme-control systems electric
    • G05B19/04Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/042Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
    • G05B19/0428Safety, monitoring
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00Program-control systems
    • G05B2219/20Pc systems
    • G05B2219/24Pc safety
    • G05B2219/24024Safety, surveillance

Abstract

The invention discloses a cable tunnel comprehensive monitoring system, which belongs to the field of cable tunnel monitoring systems and comprises an infrared thermal imaging module, an image acquisition module, a laser shock detection module, a monitoring information receiving module, a preset value leading-in module, a monitoring information processing module, an early warning grading module, a master control module, a cable current on-off module, an early warning message sending module, an information unloading module, an information storage cloud and a retrieval module; the infrared thermal imaging module is in communication connection with the monitoring information receiving module, the image acquisition module is in communication connection with the monitoring information receiving module, the laser shock measurement module is in communication connection with the monitoring information receiving module, and the monitoring information receiving module is in communication connection with the monitoring information processing module and the information transfer and storage module. The invention can detect the sagging degree of the cable, quickly find the abnormal position after detection and maintain in time, thereby avoiding the occurrence of accidents.

Description

Cable tunnel integrated monitoring system
Technical Field
The invention relates to a cable tunnel monitoring system, in particular to a cable tunnel comprehensive monitoring system.
Background
With the increase of the capacity of the power grid, the improvement of intellectualization and automation level and the development of cities, the cable usage is more and more large, high-voltage lines have to be laid through underground tunnels, the lines of the tunnels are positioned underground, the situation in the tunnels is difficult to master, once special situations occur in the tunnels, the field situation is difficult to know in the first time, and corresponding measures are taken, so that great loss is possibly caused, and the safe operation of the power grid is influenced. Therefore, people construct a monitoring system in the tunnel to monitor the safety of the cable.
The existing cable monitoring system generally comprises a camera and a temperature sensor, wherein the camera monitors a picture of an area where a cable is located, and the temperature sensor monitors temperature change of the cable in real time to avoid causing fire.
However, the existing cable monitoring system has the following problems: if the impurity or cable both ends mount that dust, earth etc. are difficult to discern that drop on the cable are not hard up, then can cause the cable further flagging, and prior art can't detect the flagging degree of cable intermediate position, if the cable flagging is too much, probably causes the occurence of failure. Accordingly, one skilled in the art provides a cable tunnel integrated monitoring system to solve the problems set forth in the background art.
Disclosure of Invention
The invention aims to provide a cable tunnel comprehensive monitoring system which can detect the sagging degree of a cable, quickly find an abnormal position after detection, and timely maintain to further avoid accidents so as to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme:
a cable tunnel comprehensive monitoring system comprises an infrared thermal imaging module, an image acquisition module, a laser shock detection module, a monitoring information receiving module, a preset value leading-in module, a monitoring information processing module, an early warning grading module, a master control module, a cable current on-off module, an early warning message sending module, an information unloading module, an information storage cloud and a retrieval module;
the infrared thermal imaging module is in communication connection with a monitoring information receiving module, the image acquisition module is in communication connection with the monitoring information receiving module, the laser shock measurement module is in communication connection with the monitoring information receiving module, the monitoring information receiving module is in communication connection with a monitoring information processing module and an information transfer module, the preset value import module is in communication connection with the monitoring information processing module, the monitoring information processing module is in communication connection with an early warning grading module, the early warning grading module is in communication connection with a master control module, the master control module is in communication connection with a cable current on-off module and an early warning message sending module, the information transfer module is in communication connection with an information storage cloud, and the information storage cloud is in communication connection with a retrieval module;
the infrared thermal imaging module is used for acquiring thermal imaging of a cable tunnel and sending thermal imaging information to the monitoring information receiving module, the image acquisition module is used for acquiring images of cables in the cable tunnel and sending the image information to the monitoring information receiving module, the laser shock measurement module is used for acquiring vibration frequency of the cables and sending the vibration frequency information to the monitoring information receiving module, the monitoring information receiving module is used for receiving the transmitted thermal imaging information, image information and vibration frequency information and sending the information to the monitoring information processing module and the information transfer and storage module, the information transfer and storage module is used for storing the received thermal imaging information, image information and vibration frequency information to the information storage cloud, the retrieval module is used for enabling workers to transfer monitoring information of corresponding time periods, and the preset value importing module is used for importing preset value information to the monitoring information processing module, the monitoring information processing module receives detection information and preset value information, constructs a detection model, inputs the detection information and the preset value information into the detection model, outputs a detection result to the early warning classification module, the early warning classification module receives the detection result and performs classification early warning processing on the detection result, and finally sends the classification early warning processing result to the general control module, the general control module receives the classification early warning processing result, issues a switching-on/off instruction to the cable current switching-on/off module and sends a control instruction to the early warning message sending module, the early warning message sending module sends out an early warning message after receiving the control instruction, and the cable current switching-on/off module selects whether to switch off the power on of a cable according to the instruction after receiving the switching-on/off instruction;
the specific construction process of the detection model comprises the following steps:
s1: thermal imaging detection, specifically:
s101: marking the thermal imaging of the cables in the thermal imaging information of the plurality of tunnel areas as Pi, i-1 … n;
s102: analyzing whether other heat sources exist within a certain distance of Pi according to thermal imaging information, if not, outputting a detection result that mice do not exist around the cable, and if so, entering the next step;
s103: labeling the other heat sources present as Qi, matching Qi to the pre-set thermal image of the introduced rat, wherein i is 1 … n;
s104: if the coincidence degree of any one Qi and the preset thermal imaging matching of the mouse reaches 60%, outputting a detection result that the mouse exists around the cable; if the coincidence degree of any one Qi and the preset thermal imaging matching of the mouse is lower than 60%, outputting a detection result that no mouse exists around the cable;
s2: image information detection, specifically:
s201: dividing the acquired cable image into a plurality of areas by taking a cable fixing frame as a node, and marking the areas as Hi, i is 1 … n;
s202: performing image recognition on Hi, selecting node position points on two sides in the region image and the lowest point of the middle position of the cable, and respectively marking the node position points and the lowest point as A, B, C, wherein i is 1 … n;
s203: connecting A, B, C to form a triangle, making the included angle between CA and CB be alpha, making the included angle between AB and AC be beta, and making the included angle between BA and BC be delta;
s204: calculating the relative lengths of AB, BC and AC according to image identification, and respectively marking as c, a and b;
s205: according to the formula
Figure BDA0003167095930000031
Solving the angle of alpha;
s206: comparing the alpha with a preset value, and if the alpha is larger than or equal to the preset value, outputting a detection result that the cable is normal in droop; if the alpha is smaller than the preset value, outputting a detection result as abnormal cable droop;
s3: the cable shakes and detects, specifically is:
s301: marking the vibration frequency of the cable detected at a plurality of positions as Ki, i is 1 … n;
s302: comparing the Ki with a preset value;
s302: if Ki is less than or equal to a preset value, outputting a detection result that the cable is normal in vibration; otherwise, outputting a detection result that the cable is abnormal in vibration;
s4: and displaying all detection results on a display screen.
The invention can detect the sagging degree of the cable, quickly find the abnormal position after detection and maintain in time, thereby avoiding the occurrence of accidents. In addition, the vibration frequency of the cable is monitored, whether mice exist around the cable or not is detected, and the cable is prevented from being damaged due to the fact that the mice bite the cable.
As a further scheme of the invention: the specific process of the grading early warning treatment is as follows:
1): if the early warning classification module receives three detection results of mice, cable droop abnormity and cable vibration abnormity around the cable, three levels of early warnings are issued;
2): if the early warning classification module receives detection results of any two of mice, cable droop abnormity and cable vibration abnormity around the cable, a second-stage early warning is issued;
3): if the early warning classification module receives a detection result of any one of mice, cable droop abnormality and cable vibration abnormality around the cable, a first-stage early warning is issued;
4): if the early warning classification module does not receive any detection result of mice, cable droop abnormity and cable vibration abnormity around the cable, no early warning is issued;
the specific early warning content of the third-stage early warning is 'please all maintenance personnel to carry out overall maintenance on the cable tunnel', the specific early warning content of the second-stage early warning is 'please all maintenance personnel to maintain the abnormal position of the cable tunnel and carry out overall maintenance on the cable tunnel', the early warning content of the first-stage early warning is 'please XXX department maintenance personnel to maintain the abnormal position of the cable tunnel, and other department personnel carry out overall maintenance on the cable tunnel'.
The early warning is graded, and workers can quickly know the degree of damage of the cable.
As a still further scheme of the invention: the specific process of the master control module for issuing the instruction is as follows:
(1): if the three-stage early warning is received, issuing a power-off instruction to the cable current on-off module, and sending a control instruction corresponding to the three-stage early warning to the early warning message sending module;
(1): if the secondary early warning is received, issuing a power-off instruction to the cable current on-off module, and sending a control instruction corresponding to the secondary early warning to the early warning message sending module;
(1): and if the first-stage early warning is received, issuing a power-on instruction to the cable current on-off module, and sending a control instruction corresponding to the first-stage early warning to the early warning message sending module.
And determining whether the cable is powered on or off according to the early warning classification result, so as to avoid the influence of random power failure on the work of a power consumption unit.
As a still further scheme of the invention: early warning message sending module is by broadcasting loudspeaker, bee calling organ and warning light and form, broadcasts when early warning message sends that the loudspeaker can report alarm level message, and bee calling organ sounds simultaneously, and the warning light can be according to the light of the different colours of alarm level scintillation, scintillation yellow light during the one-level early warning, scintillation red light during the second grade early warning, red yellow light scintillation in turn during the tertiary early warning.
This setting makes things convenient for the staff to learn the rank of early warning fast.
As a still further scheme of the invention: when the retrieval module is used, retrieval can be carried out only by inputting the past date and time periods, and retrieval contents can be displayed on the display screen.
This setting makes things convenient for the staff to look over the record of detecting of current period.
As a still further scheme of the invention: the preset value information imported by the preset value importing module comprises preset thermal imaging of mice, a preset value of a droop bottom angle of a cable and a preset value of vibration frequency.
Compared with the prior art, the invention has the beneficial effects that:
the invention can detect the sagging degree of the cable, quickly find the abnormal position after detection and maintain in time, thereby avoiding the occurrence of accidents. In addition, the vibration frequency of the cable is monitored, whether mice exist around the cable or not is detected, and the cable is prevented from being damaged due to the fact that the mice bite the cable. The invention can also grade the early warning information after the detection result is obtained, and is convenient for the working personnel to quickly know the degree of damage of the cable.
Drawings
Fig. 1 is a block diagram of a cable tunnel integrated monitoring system;
fig. 2 is a schematic diagram of point A, B, C taking in a cable tunnel integrated monitoring system.
Detailed Description
Referring to fig. 1-2, in an embodiment of the present invention, a cable tunnel integrated monitoring system includes an infrared thermal imaging module, an image acquisition module, a laser shock detection module, a monitoring information receiving module, a preset value importing module, a monitoring information processing module, an early warning classification module, a total control module, a cable current on-off module, an early warning message sending module, an information unloading module, an information storage cloud, and a retrieval module.
The infrared thermal imaging module is in communication connection with the monitoring information receiving module, the image acquisition module is in communication connection with the monitoring information receiving module, the laser shock measurement module is in communication connection with the monitoring information receiving module, the monitoring information receiving module is in communication connection with the monitoring information processing module and the information transferring module, the preset value importing module is in communication connection with the monitoring information processing module, the monitoring information processing module is in communication connection with the early warning grading module, the early warning grading module is in communication connection with the master control module, the master control module is in communication connection with the cable current on-off module and the early warning message sending module, the information transferring module is in communication connection with the information storage cloud end, and the information storage cloud end is in communication.
The infrared thermal imaging module is used for acquiring thermal imaging of a cable tunnel and sending thermal imaging information to the monitoring information receiving module, the image acquisition module is used for acquiring images of cables in the cable tunnel and sending the image information to the monitoring information receiving module, the laser vibration detection module is used for acquiring vibration frequency of the cables and sending the vibration frequency information to the monitoring information receiving module, the monitoring information receiving module is used for receiving the transmitted thermal imaging information, image information and vibration frequency information and sending the information to the monitoring information processing module and the information transfer and storage module, the information transfer and storage module is used for storing the received thermal imaging information, image information and vibration frequency information to the information storage cloud end, the retrieval module is used for enabling workers to transfer monitoring information of corresponding time periods, and the preset value introduction module is used for introducing preset value information to the monitoring information processing module, the monitoring information processing module receives detection information and preset value information, a detection model is constructed, the detection information and the preset value information are input into the detection model, a detection result is output to the early warning classification module, the early warning classification module receives the detection result and performs classification early warning processing on the detection result, finally, the classification early warning processing result is sent to the main control module, the main control module receives the classification early warning processing result and then issues a switching-on/off instruction to the cable current switching-on/off module, and sends a control instruction to the early warning message sending module, the early warning message sending module can send out the early warning message after receiving the control instruction, and the cable current switching-on/off module receives the switching-on/off instruction and then selects whether to switch off the power of a cable or not according to the instruction.
The specific construction process of the detection model comprises the following steps:
s1: thermal imaging detection, specifically:
s101: the thermography of the cable in the thermographic information of several tunnel regions is marked Pi, i-1 … n.
S102: and analyzing whether other heat sources exist within a certain distance of Pi according to the thermal imaging information, if not, outputting a detection result that mice do not exist around the cable, and if so, entering the next step.
S103: the other heat sources present are labeled Qi, which is matched to the pre-set thermal imaging of the introduced rat, where i is 1 … n.
S104: if the coincidence degree of any one Qi and the preset thermal imaging matching of the mouse reaches 60%, outputting a detection result that the mouse exists around the cable. If the coincidence degree of any one Qi and the preset thermal imaging matching of the mouse is lower than 60%, outputting a detection result that no mouse exists around the cable.
S2: image information detection, specifically:
s201: the acquired cable image is divided into a plurality of areas by taking the cable fixing frame as a node, and the areas are marked as Hi, i-1 … n.
S202: as shown in fig. 2, image recognition is performed on Hi, and node position points on both sides and the lowest point of the cable middle position in the region image are selected and respectively marked as A, B, C, where i is 1 … n.
S203: connecting lines A, B, C to form a triangle, making the included angle between CA and CB be alpha, making the included angle between AB and AC be beta, and making the included angle between BA and BC be delta.
S204: the relative lengths of AB, BC, AC are found from the image recognition, denoted c, a, b, respectively.
S205: according to the formula
Figure BDA0003167095930000081
The angle of alpha is found.
S206: and comparing the alpha with a preset value, and if the alpha is larger than or equal to the preset value, outputting a detection result that the cable is normal in droop. And if the alpha is smaller than the preset value, outputting a detection result as abnormal cable droop.
S3: the cable shakes and detects, specifically is:
s301: the cable vibration frequency detected at several positions is marked as Ki, i-1 … n.
S302: ki is compared to a preset value.
S302: and if the Ki is less than or equal to a preset value, outputting a detection result that the cable is normal in vibration. Otherwise, outputting a detection result that the cable is abnormal in vibration.
S4: and displaying all detection results on a display screen.
The invention can detect the sagging degree of the cable, quickly find the abnormal position after detection and maintain in time, thereby avoiding the occurrence of accidents. In addition, the vibration frequency of the cable is monitored, whether mice exist around the cable or not is detected, and the cable is prevented from being damaged due to the fact that the mice bite the cable.
In this embodiment: the specific process of the grading early warning treatment comprises the following steps:
1): and if the early warning classification module receives three detection results of mice, cable droop abnormity and cable vibration abnormity around the cable, issuing three-level early warning.
2): and if the early warning classification module receives detection results of any two of mice, cable droop abnormity and cable vibration abnormity around the cable, issuing a second-stage early warning.
3): and if the early warning classification module receives a detection result of any one of mice, cable droop abnormity and cable vibration abnormity around the cable, issuing a first-stage early warning.
4): and if the early warning classification module does not receive any detection result of mice, cable droop abnormity and cable vibration abnormity around the cable, the early warning is not issued.
The specific early warning content of the third-stage early warning is 'please all maintenance personnel to carry out overall maintenance on the cable tunnel', the specific early warning content of the second-stage early warning is 'please all maintenance personnel to maintain the abnormal position of the cable tunnel and carry out overall maintenance on the cable tunnel', the early warning content of the first-stage early warning is 'please XXX department maintenance personnel to maintain the abnormal position of the cable tunnel, and other department personnel carry out overall maintenance on the cable tunnel'.
The early warning is graded, and workers can quickly know the degree of damage of the cable.
In this embodiment: the specific process of the master control module for issuing the instruction is as follows:
(1): and if the three-stage early warning is received, issuing a power-off instruction to the cable current on-off module, and sending a control instruction corresponding to the three-stage early warning to the early warning message sending module.
(1): and if the secondary early warning is received, issuing a power-off instruction to the cable current on-off module, and sending a control instruction corresponding to the secondary early warning to the early warning message sending module.
(1): and if the first-stage early warning is received, issuing a power-on instruction to the cable current on-off module, and sending a control instruction corresponding to the first-stage early warning to the early warning message sending module.
And determining whether the cable is powered on or off according to the early warning classification result, so as to avoid the influence of random power failure on the work of a power consumption unit.
In this embodiment: early warning message sending module is by broadcasting loudspeaker, bee calling organ and warning light and forming, broadcasts when early warning message sends that to report loudspeaker can report alarm level message, and bee calling organ sounds simultaneously, and the warning light can twinkle the light of different colours according to the alarm level, twinkle yellow light during the one-level early warning, twinkle red light during the second grade early warning, red yellow light twinkles in turn during the tertiary early warning. This setting makes things convenient for the staff to learn the rank of early warning fast.
In this embodiment: when the retrieval module is used, retrieval can be carried out only by inputting the past date and time periods, and retrieval contents are all displayed on the display screen. This setting makes things convenient for the staff to look over the record of detecting of current period.
In this embodiment: the preset value information imported by the preset value import module comprises preset thermal imaging of mice, preset values of sagging bottom angles of cables and preset values of vibration frequencies:
the working principle of the invention is as follows: when the system is used, firstly, the infrared thermal imaging module collects thermal imaging of the cable tunnel and sends thermal imaging information to the monitoring information receiving module, the image collecting module collects images of the cable in the cable tunnel and sends the image information to the monitoring information receiving module, and the laser vibration measuring module collects vibration frequency of the cable and sends the vibration frequency information to the monitoring information receiving module. And then, the monitoring information receiving module receives the transmitted thermal imaging information, image information and vibration frequency information and sends the thermal imaging information, the image information and the vibration frequency information to the monitoring information processing module and the information unloading module. The information unloading module stores the received thermal imaging information, the received image information and the received vibration frequency information to the information storage cloud end, and the retrieval module is convenient for workers to fetch monitoring information of corresponding time periods. And then, the staff imports preset value information to the monitoring information processing module through the preset value import module, the monitoring information processing module receives the detection information and the preset value information, constructs a detection model, inputs the detection information and the preset value information to the detection model, and outputs a detection result to the early warning classification module. The early warning classification module receives the detection result and carries out classification early warning processing on the detection result, the classification early warning processing result is sent to the master control module finally, the master control module receives the classification early warning processing result and then issues a switching-on/off instruction to the cable current switching-on/off module, and sends a control instruction to the early warning message sending module, the early warning message sending module can send out the early warning message after receiving the control instruction, and the cable current switching-on/off module receives the switching-on/off instruction and then selects whether to switch off the power on of the cable according to the instruction.
The invention can detect the sagging degree of the cable, quickly find the abnormal position after detection and maintain in time, thereby avoiding the occurrence of accidents. In addition, the vibration frequency of the cable is monitored, whether mice exist around the cable or not is detected, and the cable is prevented from being damaged due to the fact that the mice bite the cable. The invention can also grade the early warning information after the detection result is obtained, and is convenient for the working personnel to quickly know the degree of damage of the cable.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention are equivalent to or changed within the technical scope of the present invention.

Claims (6)

1. A cable tunnel comprehensive monitoring system is characterized by comprising an infrared thermal imaging module, an image acquisition module, a laser shock measurement module, a monitoring information receiving module, a preset value leading-in module, a monitoring information processing module, an early warning grading module, a master control module, a cable current on-off module, an early warning message sending module, an information unloading module, an information storage cloud and a retrieval module;
the infrared thermal imaging module is in communication connection with a monitoring information receiving module, the image acquisition module is in communication connection with the monitoring information receiving module, the laser shock measurement module is in communication connection with the monitoring information receiving module, the monitoring information receiving module is in communication connection with a monitoring information processing module and an information transfer module, the preset value import module is in communication connection with the monitoring information processing module, the monitoring information processing module is in communication connection with an early warning grading module, the early warning grading module is in communication connection with a master control module, the master control module is in communication connection with a cable current on-off module and an early warning message sending module, the information transfer module is in communication connection with an information storage cloud, and the information storage cloud is in communication connection with a retrieval module;
the infrared thermal imaging module is used for acquiring thermal imaging of a cable tunnel and sending thermal imaging information to the monitoring information receiving module, the image acquisition module is used for acquiring images of cables in the cable tunnel and sending the image information to the monitoring information receiving module, the laser shock measurement module is used for acquiring vibration frequency of the cables and sending the vibration frequency information to the monitoring information receiving module, the monitoring information receiving module is used for receiving the transmitted thermal imaging information, image information and vibration frequency information and sending the information to the monitoring information processing module and the information transfer and storage module, the information transfer and storage module is used for storing the received thermal imaging information, image information and vibration frequency information to the information storage cloud, the retrieval module is used for enabling workers to transfer monitoring information of corresponding time periods, and the preset value importing module is used for importing preset value information to the monitoring information processing module, the monitoring information processing module receives detection information and preset value information, constructs a detection model, inputs the detection information and the preset value information into the detection model, outputs a detection result to the early warning classification module, the early warning classification module receives the detection result and performs classification early warning processing on the detection result, and finally sends the classification early warning processing result to the general control module, the general control module receives the classification early warning processing result, issues a switching-on/off instruction to the cable current switching-on/off module and sends a control instruction to the early warning message sending module, the early warning message sending module sends out an early warning message after receiving the control instruction, and the cable current switching-on/off module selects whether to switch off the power on of a cable according to the instruction after receiving the switching-on/off instruction;
the specific construction process of the detection model comprises the following steps:
s1: thermal imaging detection, specifically:
s101: marking the thermal imaging of the cables in the thermal imaging information of the plurality of tunnel areas as Pi, i-1 … n;
s102: analyzing whether other heat sources exist within a certain distance of Pi according to thermal imaging information, if not, outputting a detection result that mice do not exist around the cable, and if so, entering the next step;
s103: labeling the other heat sources present as Qi, matching Qi to the pre-set thermal image of the introduced rat, wherein i is 1 … n;
s104: if the coincidence degree of any one Qi and the preset thermal imaging matching of the mouse reaches 60%, outputting a detection result that the mouse exists around the cable; if the coincidence degree of any one Qi and the preset thermal imaging matching of the mouse is lower than 60%, outputting a detection result that no mouse exists around the cable;
s2: image information detection, specifically:
s201: dividing the acquired cable image into a plurality of areas by taking a cable fixing frame as a node, and marking the areas as Hi, i is 1 … n;
s202: performing image recognition on Hi, selecting node position points on two sides in the region image and the lowest point of the middle position of the cable, and respectively marking the node position points and the lowest point as A, B, C, wherein i is 1 … n;
s203: connecting A, B, C to form a triangle, making the included angle between CA and CB be alpha, making the included angle between AB and AC be beta, and making the included angle between BA and BC be delta;
s204: calculating the relative lengths of AB, BC and AC according to image identification, and respectively marking as c, a and b;
s205: according to the formula
Figure FDA0003167095920000031
Solving the angle of alpha;
s206: comparing the alpha with a preset value, and if the alpha is larger than or equal to the preset value, outputting a detection result that the cable is normal in droop; if the alpha is smaller than the preset value, outputting a detection result as abnormal cable droop;
s3: the cable shakes and detects, specifically is:
s301: marking the vibration frequency of the cable detected at a plurality of positions as Ki, i is 1 … n;
s302: comparing the Ki with a preset value;
s302: if Ki is less than or equal to a preset value, outputting a detection result that the cable is normal in vibration; otherwise, outputting a detection result that the cable is abnormal in vibration;
s4: and displaying all detection results on a display screen.
2. The comprehensive monitoring system for cable tunnels according to claim 1, wherein the specific process of the grading early warning processing is as follows:
1): if the early warning classification module receives three detection results of mice, cable droop abnormity and cable vibration abnormity around the cable, three levels of early warnings are issued;
2): if the early warning classification module receives detection results of any two of mice, cable droop abnormity and cable vibration abnormity around the cable, a second-stage early warning is issued;
3): if the early warning classification module receives a detection result of any one of mice, cable droop abnormality and cable vibration abnormality around the cable, a first-stage early warning is issued;
4): if the early warning classification module does not receive any detection result of mice, cable droop abnormity and cable vibration abnormity around the cable, no early warning is issued;
the specific early warning content of the third-stage early warning is 'please all maintenance personnel to carry out overall maintenance on the cable tunnel', the specific early warning content of the second-stage early warning is 'please all maintenance personnel to maintain the abnormal position of the cable tunnel and carry out overall maintenance on the cable tunnel', the early warning content of the first-stage early warning is 'please XXX department maintenance personnel to maintain the abnormal position of the cable tunnel, and other department personnel carry out overall maintenance on the cable tunnel'.
3. The comprehensive monitoring system for the cable tunnel according to claim 2, wherein the specific process of the command issued by the master control module is as follows:
(1): if the three-stage early warning is received, issuing a power-off instruction to the cable current on-off module, and sending a control instruction corresponding to the three-stage early warning to the early warning message sending module;
(1): if the secondary early warning is received, issuing a power-off instruction to the cable current on-off module, and sending a control instruction corresponding to the secondary early warning to the early warning message sending module;
(1): and if the first-stage early warning is received, issuing a power-on instruction to the cable current on-off module, and sending a control instruction corresponding to the first-stage early warning to the early warning message sending module.
4. The cable tunnel integrated monitoring system of claim 3, wherein the early warning message sending module comprises a broadcast speaker, a buzzer and a warning lamp, the broadcast speaker can broadcast the warning level message when the early warning message is sent out, the buzzer sounds simultaneously, the warning lamp can flash lights with different colors according to the warning level, yellow light flashes during the first-level early warning, red light flashes during the second-level early warning, and red and yellow lights flash alternately during the third-level early warning.
5. The comprehensive cable tunnel monitoring system according to claim 1, wherein the retrieval module is capable of retrieving only by inputting past date and time periods when in use, and the retrieved contents are displayed on the display screen.
6. The system of claim 1, wherein the preset value information imported by the preset value importing module comprises preset thermal imaging of rats, preset values of sagging bottom angles of cables, and preset values of vibration frequencies.
CN202110807300.0A 2021-07-16 2021-07-16 Cable tunnel integrated monitoring system Pending CN113419470A (en)

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Application publication date: 20210921