CN108387816B - Buried feeder line and buried cable magnetic field positioning monitoring alarm system - Google Patents
Buried feeder line and buried cable magnetic field positioning monitoring alarm system Download PDFInfo
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- CN108387816B CN108387816B CN201810058314.5A CN201810058314A CN108387816B CN 108387816 B CN108387816 B CN 108387816B CN 201810058314 A CN201810058314 A CN 201810058314A CN 108387816 B CN108387816 B CN 108387816B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/083—Locating faults in cables, transmission lines, or networks according to type of conductors in cables, e.g. underground
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- G—PHYSICS
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
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Abstract
A magnetic field positioning monitoring and alarming system for a buried feeder line and a buried cable belongs to the technical field of magnetic field monitoring and positioning alarming, and particularly relates to a magnetic field monitoring and alarming system for a buried feeder line and a buried cable. The underground magnetic field positioning monitoring system comprises an underground magnetic field positioning monitoring device, a signal receiving and transmitting device, a control center server, an alarm center server, a mobile terminal and an earth surface magnetic field positioning monitoring device. The invention can bring the following beneficial effects: the frequency of polling and field operation of operators can be reduced, the land excavation area is reduced in an accident state, the number of maintenance personnel is reduced, the use number and frequency of large maintenance equipment are reduced, the maintenance time is reduced, and the customer satisfaction is improved; the alarm is given in time, the patrol time is shortened, the service life of the cable is prolonged, the cable is ensured to maintain a good use state for a long time, and the safe operation time of the cable is increased; when part of cables are in a high-load condition for a long time, a company can be reminded to replace the cables with high power transmission capacity, and the accident occurrence probability is reduced.
Description
Technical Field
The invention belongs to the technical field of magnetic field positioning monitoring and alarming, and particularly relates to a magnetic field monitoring and alarming device for buried feeders and buried cables.
Background
The communication field equipment of the communication group company mainly comprises a guy pole, a single-pipe tower, a three-pipe tower, a landscape tower, a plate antenna, an RRU, wireless BTS equipment, wireless BBU equipment, PTN transmission equipment, a communication feeder, a communication cable, a communication optical cable and the like. The power transmission facility of the power grid mainly comprises a frame rod, a power transmission cable, an insulator and the like.
The buried feeder line and the buried cable of the communication group company have the characteristics of wide application range, long line and high difficulty in abnormal condition investigation. In case the abnormal condition appears, if feeder or cable damage, fracture, fusing etc. need patrol and examine the personnel and patrol and examine for a long time and dig a large amount of lands and just can find unusual place, dig the operation and need occupy a large amount of manpower and materials, can produce harmful effects to regional traffic, water supply, power supply during the operation, long-time operation can influence power consumption customer and communication customer's satisfaction.
In the present stage, a communication group company mainly relies on abnormal signal feedback of a control center and maintenance of buried feeders and buried cables to provide abnormal information, but both of the two methods cannot provide accurate information of accident places and abnormal conditions, when the length of the buried feeder or the buried cable exceeds 2 kilometers, large-area earth surface needs to be excavated for maintenance, time and labor are wasted, and a real-time monitoring, positioning and alarming system for the operation conditions of the buried feeder and the buried cable is obviously lacked at present.
Therefore, there is a need in the art for a new solution to solve this problem.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the utility model provides a bury ground feeder and bury ground cable magnetic field location monitoring alarm system, when burying ground feeder or burying ground cable abnormal conditions such as breakage, fracture, local fusing appear, in time report to the police and provide abnormal conditions type and position to control center and maintenance personal for when solving bury ground feeder and bury ground cable abnormal conditions in the present stage, need a large amount of manpower and materials to investigate for a long time unusually, the condition on large tracts of land excavation ground.
A buried feeder line and buried cable magnetic field positioning monitoring alarm system comprises a buried magnetic field positioning monitoring device, a signal receiving and transmitting device, a control center server, an alarm center server, a mobile terminal and an earth surface magnetic field positioning monitoring device;
the signal receiving and transmitting device comprises a data receiving module, a wireless transmitting module and a GPS positioning module;
the buried magnetic field positioning monitoring device comprises an insulating protective shell I, a data transmission module I, an indicator lamp I, a power frequency magnetic field sensor I, an external interface, an internal alarm instrument I, a fixed claw and a programmable control chip I;
a data transmission module I is fixedly mounted on the outer wall of the insulating protective shell I, and the data transmission module I is connected with a data receiving module of the signal receiving and transmitting device through a wire;
the indicator light I, the external interface and the power frequency magnetic field sensor I are all arranged on the outer wall of the insulating protective shell I;
the external interface comprises a sound external hole and a USB interface;
the fixed grab is arranged at the edge of the outer wall of the insulating protective shell I;
the programmable control chip I and the built-in alarm instrument I are fixedly arranged in the insulating protective shell I;
the programmable control chip I is respectively and electrically connected with the data transmission module I, the indicator lamp I, the external interface, the power frequency magnetic field sensor I and the internal alarm instrument I;
the earth surface magnetic field positioning monitoring device comprises an insulation protection shell II, a power frequency magnetic field sensor II, a built-in alarm instrument II, a programmable control chip II, an indicator lamp II and a data transmission module II;
the built-in alarm instrument II and the programmable control chip II are fixedly arranged in the insulating protective shell II;
the power frequency magnetic field sensor II, the indicator lamp II and the data transmission module II are all arranged on the outer wall of the insulating protective shell II; the data transmission module II is connected with a data receiving module of the signal receiving and transmitting device through a lead;
the control center server comprises an analysis module, a storage module, a display module and a wireless receiving module;
the signal receiving and transmitting device is connected with the control center server through a wireless transmitting module;
the control center server is connected with the alarm center server through a network cable;
the mobile terminal is connected with the alarm center server through a wireless network;
each signal receiving and transmitting device is simultaneously connected with two buried magnetic field positioning monitoring devices and one earth surface magnetic field positioning monitoring device.
The sound external hole is adjacent to the built-in alarm instrument I.
The number of the fixed grabs is four.
Through the design scheme, the invention can bring the following beneficial effects: the frequency of polling and field operation of operators can be reduced, the land excavation area is reduced in an accident state, the number of maintenance personnel is reduced, the use number and frequency of large maintenance equipment are reduced, the maintenance time is reduced, the influence degree of regional traffic, water supply and power supply is reduced, and the customer satisfaction is improved; the system has the advantages that the system can give an alarm in time, reduce patrol time, prolong the service life of the buried feeder line and the buried cable, ensure that the buried feeder line and the buried cable maintain good use state for a long time, reduce the fusing frequency of the buried feeder line and the buried cable, and increase the safe operation time of the buried feeder line and the buried cable; the system can judge the causes of data abnormity, know the load conditions of the buried feeder line and the buried cable, and remind a company to replace the buried feeder line with high transmission capacity and the buried cable when part of the buried feeder line and the buried cable are in a high-load condition for a long time, so that the accident occurrence probability is reduced.
Drawings
The invention is further described with reference to the following figures and detailed description:
fig. 1 is a schematic structural diagram of a magnetic field positioning monitoring alarm system for buried feeders and buried cables according to the present invention.
Fig. 2 is a schematic structural diagram of a buried magnetic field positioning monitoring device of a buried feeder line and buried cable magnetic field positioning monitoring alarm system of the invention.
Fig. 3 is a schematic structural diagram of an earth surface magnetic field positioning monitoring device of a buried feeder line and buried cable magnetic field positioning monitoring alarm system of the invention.
1-buried magnetic field positioning monitoring device, 2-signal receiving and transmitting device, 3-control center server, 4-alarm center server, 5-mobile terminal, 6-earth surface magnetic field positioning monitoring device, 11-insulation protective shell I, 12-data transmission module I, 13-indicator lamp I, 14-power frequency magnetic field sensor I, 15-external interface, 16-internal alarm instrument I, 17-fixed grab, 18-programmable control chip I, 61-insulation protective shell II, 62-power frequency magnetic field sensor II, 63-internal alarm instrument II, 64-programmable control chip II, 65-indicator lamp II, 66-data transmission module II.
Detailed Description
A buried feeder line and buried cable magnetic field positioning monitoring alarm system is shown in figure 1 and comprises a buried magnetic field positioning monitoring device 1, a signal receiving and transmitting device 2, a control center server 3, an alarm center server 4, a mobile terminal 5 and an earth surface magnetic field positioning monitoring device 6;
the signal receiving and transmitting device 2 comprises a data receiving module, a wireless transmitting module and a GPS positioning module;
the buried magnetic field positioning monitoring device 1 is shown in fig. 2 and comprises an insulation protection shell I11, a data transmission module I12, an indicator light I13, a power frequency magnetic field sensor I14, an external interface 15, an internal alarm instrument I16, a fixed grab 17 and a programmable control chip I18;
a data transmission module I12 is fixedly installed on the outer wall of the insulating protective shell I11, and the data transmission module I12 is connected with the data receiving module of the signal receiving and transmitting device 2 through a lead;
the indicator light I13, the external interface 15 and the power frequency magnetic field sensor I14 are all arranged on the outer wall of the insulation protective shell I11;
the external interface 15 comprises a sound external hole and a USB interface;
the fixed grab 17 is arranged at the edge of the outer wall of the insulation protection shell I11;
the programmable control chip I18 and the built-in alarm I16 are fixedly arranged inside the insulating protective shell I11;
the programmable control chip I18 is respectively and electrically connected with the data transmission module I12, the indicator light I13, the external interface 15, the power frequency magnetic field sensor I14 and the internal alarm instrument I16;
as shown in fig. 3, the earth surface magnetic field positioning monitoring device 6 includes an insulating protective shell II61, a power frequency magnetic field sensor II62, a built-in alarm II63, a programmable control chip II64, an indicator light II65, and a data transmission module II 66;
the built-in alarm instrument II63 and the programmable control chip II64 are fixedly arranged inside the insulating protective shell II 61;
the power frequency magnetic field sensor II62, the indicator lamp II65 and the data transmission module II66 are all arranged on the outer wall of the insulating protective shell II 61; the data transmission module II66 is connected with the data receiving module of the signal receiving and transmitting device 2 through a lead;
the control center server 3 comprises an analysis module, a storage module, a display module and a wireless receiving module;
the signal receiving and transmitting device 2 is connected with the control center server 3 through a wireless transmitting module;
the control center server 3 is connected with the alarm center server 4 through a network cable;
the mobile terminal 5 is connected with the alarm center server 4 through a wireless network;
each signal receiving and transmitting device 2 is simultaneously connected with two buried magnetic field positioning monitoring devices 1 and one earth surface magnetic field positioning monitoring device 6.
The sound outlet hole is adjacent to the built-in alarm I16.
The fixed grips 17 are provided in four.
A buried feeder line and buried cable magnetic field positioning monitoring alarm system debugging and program setting steps:
1. obtaining the model, the inner diameter, the material and the length of a buried feeder line or a buried cable, the current and voltage load strength of the buried feeder line or the buried cable, the material and the thickness of an insulation protection layer of the buried feeder line or the buried cable, and a power frequency magnetic field load limit value of the buried feeder line or the buried cable in normal operation and in extreme operation through investigation;
2. acquiring the buried depth of a buried feeder line or a buried cable through investigation, and hanging an external GPS and a magnetic signal receiving and transmitting device on the ground according to the type of the earth surface above the buried feeder line or the buried cable;
3. determining the setting place, the buried depth and the relative position relation with a buried feeder line or a buried cable of the buried magnetic field positioning monitoring device 1; the signal receiving and transmitting device 2 and the earth surface magnetic field positioning monitoring device 6 are arranged in the place and the mode and are in relative position relation with the buried magnetic field positioning monitoring device 1; the signal receiving and transmitting device 2 and the earth surface magnetic field positioning and monitoring device 6 are connected with the buried magnetic field positioning and monitoring device 1 through signal wires; the signal receiving and transmitting device 2 and the earth surface magnetic field positioning and monitoring device 6 are arranged at open positions which are not influenced by a power frequency magnetic field generated by production equipment and a field and are close to the buried magnetic field positioning and monitoring device 1;
4. switching on a power supply, and starting the buried magnetic field positioning monitoring device 1, the signal receiving and transmitting device 2 and the earth surface magnetic field positioning monitoring device 6; receiving data information of the buried magnetic field positioning monitoring device 1 and the earth surface magnetic field positioning monitoring device 6 through a data receiving module of the signal receiving and transmitting device 2; the buried magnetic field positioning monitoring device 1 transmits the acquisition time, the intensity and the fluctuation range of the underground power frequency magnetic field signal obtained by the power frequency magnetic field sensor I14 to the signal receiving and transmitting device 2 through the data transmission module I12, and the earth surface magnetic field positioning monitoring device 6 transmits the acquisition time, the intensity and the fluctuation range of the earth surface power frequency magnetic field signal obtained by the power frequency magnetic field sensor II62 to the signal receiving and transmitting device 2 through the data transmission module II 66; the signal receiving and transmitting device 2 transmits the obtained information to the control center server 3 through the wireless transmitting module and then transmits the information to the alarm center server 4, and the mobile terminal 5 acquires an alarm signal sent by the alarm center server 4 through a wireless network;
5. the debugging personnel collects the power frequency magnetic field data, the buried feeder line or buried cable load data and the GPS data through the data processor 3 of the control center, establishes a series of function calculation relations and determines the set values of all parameters;
6. repeatedly debugging the set values of all the parameters to enable the calculated value to reflect the real situation of the magnetic environment where the buried magnetic field positioning monitoring device 1 is located;
7. defining a safety range, an alarm range and a fault range which accord with the actual operation condition of the buried feeder line or the buried cable, and setting response conditions for transmitting information with production scheduling personnel, inspection personnel, a control center and an alarm center;
8. adjusting the use mode and the operation mode of a manager training system and a maintenance personnel training system;
9. the magnetic field positioning monitoring alarm system for the buried feeder line and the buried cable is maintained regularly, and when the buried feeder line or the buried cable, an external environment, a manager, a maintainer and the like are adjusted greatly, investigation and system debugging are carried out from step 1.
Specifically, according to power frequency magnetic field data, buried feeder line or buried cable load data and GPS data gathered in the control center server 3, the formula for establishing the environment acceptable magnetic field degree warning intensity is as follows:
wherein, the warning intensity of the environment acceptable magnetic field degree is shown, tau is the power frequency magnetic field intensity difference coefficient of the adjacent buried magnetic field positioning and monitoring devices 1, psi1、ψ2The power frequency magnetic field intensity change coefficients of the two adjacent buried magnetic field positioning monitoring devices 1 are respectively, lambda is a power frequency magnetic field intensity load coefficient, α is an external environment magnetic field intensity change coefficient, β is a magnetic field difference weight coefficient, and the value range of β is 1-5.
The value of the power frequency magnetic field intensity difference coefficient tau of the adjacent buried magnetic field positioning and monitoring devices is as follows:
B1＜B2，
B1＞B2，
B1＝B2，τ＝0
wherein, B1The unit of the power frequency magnetic field strength value is T which is monitored by a buried magnetic field positioning monitoring device 1 in real time
B2The unit of the power frequency magnetic field strength value is T, wherein the power frequency magnetic field strength value is monitored in real time by another adjacent buried magnetic field positioning monitoring device 1.
The value of the power frequency magnetic field strength load coefficient lambda is as follows:
max(B1，B2)＜λ1，
min(B1，B2)＜λ1and λ1≤max(B1，B2)≤λ2，
min(B1，B2)＞λ2，
max(B1，B2)＞λ2And λ1≤min(B1，B2)≤λ2，
λ1≤max(B1，B2)≤λ2And λ1≤min(B1，B2)≤λ2，λ＝1；
Wherein, B1The device is a buried magnetic field positioning monitoring device 1, the magnetic field intensity measurement value is T,
B2the measured value of the magnetic field intensity of the adjacent other buried magnetic field positioning and monitoring device 1 is measured in T,
1 is the minimum value of the power frequency magnetic field intensity load of the buried feeder line or the buried cable in normal operation, and the unit is T,
2 is the maximum value of the power frequency magnetic field intensity load of the buried feeder line or the buried cable in normal operation, and the unit is T;
the value of the change coefficient of the magnetic field intensity of the external environment is as follows:
B3≤3B0，α＝0；
3B0＜B3≤10B0，
10B0＜B3≤100B0，
100B0＜B3，
wherein, B3The magnetic field intensity measured value of the surface magnetic field positioning monitoring device 6 is expressed in T,
B0the initial value of the magnetic field intensity of the environment where the earth surface magnetic field positioning monitoring device 6 is located is T;
gamma is a low basic change coefficient of the magnetic field intensity of the external environment, and the value of gamma is 0.4-0.6;
mu is a low ratio change coefficient of the external environment magnetic field intensity, and the value is 3-6;
the basic change coefficient of the magnetic field intensity of the external environment is 0.8-1.6;
zeta is a ratio change coefficient in the magnetic field intensity of the external environment, and the value of zeta is 30-70;
eta is a high basic change coefficient of the magnetic field intensity of the external environment, and the value of eta is 2-4;
theta is a high ratio change coefficient of the magnetic field intensity of the external environment, and the value of theta is 80-120;
obtaining the value of the warning intensity of the environment acceptability according to the warning intensity formula of the environment acceptability:
the magnetic field intensity of the buried feeder line or the buried cable is normal when the magnetic field intensity is not less than 0 and not more than 1, and the buried magnetic field positioning monitoring device 1 and the earth surface magnetic field positioning monitoring device 6 only send real-time magnetic field intensity data to the signal receiving and transmitting device 2;
1 is less than or equal to 5, the magnetic field intensity of the buried feeder line or the buried cable is abnormal, the control center data processor 3 sends an environmental abnormity warning signal to the built-in alarm instrument I16, the built-in alarm instrument I16 sends a voice warning for 'investigating', and the alarm center server 4 sends a warning signal for 'investigating' to the mobile terminal 5 of a manager and a maintainer;
if the intensity of the magnetic field of the buried feeder line or the buried cable is greater than 5, the control center server 3 sends an environmental abnormity alarm signal to the alarm center server 4, the alarm center server 4 sends an alarm signal to an alarm receiving department, the control center server 3 sends an environmental abnormity alarm signal to the built-in alarm instrument I16 and the built-in alarm instrument II63, the built-in alarm instrument I16 sends out a fault voice alarm, and the alarm center server 4 sends a danger alarm signal to the managers and the mobile terminal 5 of the managers, so that the non-maintainers and the non-emergency rescue workers are prohibited from entering places.
The invention is obviously different from the prior art, the existing monitoring alarm equipment mainly serves independent electric equipment, is mainly used for monitoring production load, has functions of the equipment, and has no matched power frequency magnetic field monitoring device for buried feeders or buried cables. The invention is set for monitoring the load and damage condition of the buried feeder line or the buried cable, and is networked with the control center and the alarm center, thereby achieving the purposes of partially replacing operating personnel to patrol and timely positioning the abnormal buried feeder line or the buried cable section.
Claims (3)
1. The utility model provides a bury ground feeder and bury ground cable magnetic field location monitoring alarm system which characterized by: the system comprises a buried magnetic field positioning monitoring device (1), a signal receiving and transmitting device (2), a control center server (3), an alarm center server (4), a mobile terminal (5) and an earth surface magnetic field positioning monitoring device (6);
the signal receiving and transmitting device (2) comprises a data receiving module, a wireless transmitting module and a GPS positioning module;
the buried magnetic field positioning monitoring device (1) comprises an insulation protective shell I (11), a data transmission module I (12), an indicator lamp I (13), a power frequency magnetic field sensor I (14), an external interface (15), an internal alarm instrument I (16), a fixed grab (17) and a programmable control chip I (18);
a data transmission module I (12) is fixedly mounted on the outer wall of the insulating protective shell I (11), and the data transmission module I (12) is connected with a data receiving module of the signal receiving and transmitting device (2) through a wire;
the indicator light I (13), the external interface (15) and the power frequency magnetic field sensor I (14) are all arranged on the outer wall of the insulating protective shell I (11);
the external interface (15) comprises a sound external hole and a USB interface;
the fixed grab (17) is arranged at the edge of the outer wall of the insulating protective shell I (11);
the programmable control chip I (18) and the built-in alarm instrument I (16) are fixedly arranged in the insulating protective shell I (11);
the programmable control chip I (18) is respectively and electrically connected with the data transmission module I (12), the indicator lamp I (13), the external interface (15), the power frequency magnetic field sensor I (14) and the internal alarm instrument I (16);
the earth surface magnetic field positioning monitoring device (6) comprises an insulation protective shell II (61), a power frequency magnetic field sensor II (62), a built-in alarm instrument II (63), a programmable control chip II (64), an indicator lamp II (65) and a data transmission module II (66);
the built-in alarm instrument II (63) and the programmable control chip II (64) are fixedly arranged in the insulating protective shell II (61);
the power frequency magnetic field sensor II (62), the indicator lamp II (65) and the data transmission module II (66) are all arranged on the outer wall of the insulating protective shell II (61); the data transmission module II (66) is connected with a data receiving module of the signal receiving and transmitting device (2) through a lead;
the control center server (3) comprises an analysis module, a storage module, a display module and a wireless receiving module;
the signal receiving and transmitting device (2) is connected with the control center server (3) through a wireless transmitting module;
the control center server (3) is connected with the alarm center server (4) through a network cable;
the mobile terminal (5) is connected with the alarm center server (4) through a wireless network;
each signal receiving and transmitting device (2) is simultaneously connected with two buried magnetic field positioning monitoring devices (1) and one earth surface magnetic field positioning monitoring device (6).
2. The buried feeder and buried cable magnetic field positioning monitoring alarm system of claim 1, wherein: the sound external hole is adjacent to the built-in alarm I (16).
3. The buried feeder and buried cable magnetic field positioning monitoring alarm system of claim 1, wherein: the number of the fixed grabs (17) is four.
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| CN113109743A (en) * | 2021-04-23 | 2021-07-13 | 中国人民解放军军事科学院国防工程研究院工程防护研究所 | Underground engineering integral SREMP magnetic field environment measuring system and method |
| CN113253051B (en) * | 2021-05-12 | 2022-10-11 | 泰安泰山高压开关有限公司 | Intelligent power grid operation and maintenance operation system safety online real-time monitoring method and storage medium |
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| CN1651926A (en) * | 2005-02-03 | 2005-08-10 | 淄博博鸿电气有限公司 | Power cable damage synchronous magnetic field directioning positioning method |
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