CN109811798A - The method for detecting road surface inspection well cover breakage - Google Patents
The method for detecting road surface inspection well cover breakage Download PDFInfo
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- CN109811798A CN109811798A CN201910167991.5A CN201910167991A CN109811798A CN 109811798 A CN109811798 A CN 109811798A CN 201910167991 A CN201910167991 A CN 201910167991A CN 109811798 A CN109811798 A CN 109811798A
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Abstract
This application discloses a kind of method for detecting road surface inspection well cover breakage, method includes: to provide the inspection well cover for having detection device；When the upper surface breakage of inspection well cover, the accounting of the weight when weight and inspection well cover for calculating the upper surface breakage loss of inspection well cover are initially installed；When the upper and lower surfaces of inspection well cover are through breakage, the area of distance and breakage of the breakage apart from inspection well cover center is calculated.The present invention uses the detection method of more sector detection networks, realize the quantitative analysis to inspection well cover breakage, it can accurately detect the region, position and damaged area of inspection well cover breakage, convenient for comprehensively being detected to inspection well cover breakage, to evaluate the security risk grade of inspection well cover, convenient for administrative staff's priority processing, disposal efficiency is improved.Can not only detect inspection well cover through breakage, also being capable of timely testing and evaluation for only occurring in the breakage and fragmentation of inspection shaft cap upper surface.
Description
Technical field
The present invention relates to inspection well cover security fields more particularly to a kind of methods for detecting road surface inspection well cover breakage.
Background technique
With the quickening of urbanization process, public utility development is rapid.The departments such as electric power, communication mostly have certainly
The well lid of own division management, since city area expands, well lid has a very wide distribution, quantity is big, causes supervision difficulty big, well lid is stolen
It is surreptitiously more and more with the thing of manhole cover damage.According to statistics, it steals damage quantity the well lid year in general city and accounts for 1% of total quantity or so,
The preferable city of municipal administration is also 0.5% or so.The robber of these well lids damages phenomenon, affects the normal performance of facility function,
Very big security risk is brought while causing huge direct and consequential damage.Manhole cover anti-theft and manhole cover damage are
Huge difficult problem as puzzlement urban construction.There are different original well lid on-line measuring devices in market at present, but at least also deposits
In following defect:
(1) it is only able to detect the opening and displacement of well lid, the breakage of well lid can not be detected.
The testing principle of current well lid detection device is mainly divided to two kinds, and one kind being mounted to a limit on the borehole wall and opens
It closes, in the case where well lid normally closed, limit switch is being pressed against, and well lid is once opened or shifts, and limit switch will
It flicks, by the change of limitation travel switch state, an electric potential signal can be triggered, to detect that well lid is opened.Separately
Outside one is gravity accelerometer is installed at the well lid back side, the angle of well lid can be calculated by acceleration transducer,
When well lid angle tilt is more than certain angle, the alarm that well lid is opened is issued.
(2) damage location and damaged area of well lid can not accurately be detected
Portioned product proposes by the way of through detection line on-off the breakage for detecting well lid, thus rough estimation
The damaged degree of well lid, but detection line disconnects in identical situation, the damaged area of well lid may be very little, it is also possible to very
Greatly, manhole cover damage situation can not be accurately positioned.
(3) breakage of inspection shaft cap upper surface, the complete delamination iailure situation in lower surface can not be detected
Many inspection well cover materials are concrete or synthetic resin, after well lid is rolled by vehicle repeatedly, well lid
Gradually damaged and fragmentation, damaged depth can gradually deepen for upper surface, and the intensity of well lid itself substantially reduces, but under well lid
Surface be it is intact, the damaged degree of well lid can not be detected by modes such as limit switch and burn out detection, cannot exclude peace
Full hidden danger.
Summary of the invention
The invention discloses it is a kind of detect road surface inspection well cover breakage method, method comprising steps of
The inspection well cover for having detection device is provided, wherein
The inspection well cover includes upper and lower surfaces, and one side of the inspection well cover close to road surface is the upper surface, institute
Stating one side of the inspection well cover far from road surface is lower surface；The detection device is located at the lower surface of the inspection well cover, including sector inspection
Slowdown monitoring circuit and detection terminal；It is described detection terminal be located at the inspection well cover lower surface centre, including battery, microprocessor,
And vibrating sensor；The sector is located at the inspection well cover lower surface, around described detection terminal etc. point arrangement, the sector
Number N1≥2；Each sector includes detection conducting wire and converging wires, and the converging wires are two, along the inspection shaft
The radial direction of lid is arranged；The detection conducting wire is arranged in parallel between two converging wires, the detection conducting wire
Item number n >=2；The converging wires are electrically connected with the microprocessor；The vibrating sensor respectively with the battery and described
Microprocessor electrical connection；The battery is electrically connected with the microprocessor and the vibrating sensor respectively；The microprocessor
It is electrically connected respectively with the battery, the converging wires, the vibrating sensor；
When the upper surface breakage of the inspection well cover, the vibration frequency of the inspection well cover is detected by the vibrating sensor
Rate, and vibration frequency when initially being installed by the vibration frequency of the inspection well cover and the inspection well cover calculates the inspection well cover
The accounting of weight when the weight and the inspection well cover that upper surface breakage is lost initially are installed；
When the upper and lower surfaces of the inspection well cover are through breakage, pass through the microprocessor and detect damaged sector
Total resistance value, total resistance value when by the total resistance value of the damaged sector and the not damaged breakage sector compare, judge
The detection conducting wire disconnected out calculates breakage in the inspection well cover by the total resistance value of the detection conducting wire of the disconnection
The distance of the heart, and the distance by breakage apart from the inspection well cover center calculates the area of breakage.
Preferably, the weight and institute that the microprocessor loses the upper surface breakage of the inspection well cover are further comprised the steps of:
The accounting for stating weight when inspection well cover is initially installed is sent to control centre；
The control centre is initially installed by the weight that the upper surface breakage of the inspection well cover is lost with the inspection well cover
When weight accounting, assess the damaged degree of the inspection well cover, by the damaged degree be sent to administrative staff computer or
On mobile phone.
Preferably, it further comprises the steps of: the microprocessor and sends control centre for the damaged area；
The control centre assesses the damaged degree of the inspection well cover by the damaged area, and the damaged degree is sent out
It is sent on the computer or mobile phone of administrative staff.
Preferably, the detection conducting wire is arc or straight line；The detection conducting wire is equidistant arrangement or is to differ
Spacing arrangement.
Preferably, the material of the converging wires includes copper, and the material of the detection conducting wire includes terne metal.
Preferably, weight of the weight and the inspection well cover that the upper surface breakage of the inspection well cover is lost when initially installing
Accounting is calculated as follows:
Wherein, the weight when weight and the inspection well cover that x is the upper surface breakage loss of the inspection well cover are initially installed
Accounting；f0Vibration frequency when initially being installed for the inspection well cover；fxFor the vibration frequency of the inspection well cover.
Preferably, total resistance value when the damaged sector is not damaged, is calculated as follows:
Wherein, RLFor total resistance value of breakage sector when not damaged；R1、R2、……、RnThe respectively described damaged fan
The resistance value of the every detection conducting wire in area.
Preferably, distance of the breakage apart from the inspection well cover center, is calculated as follows:
Wherein, l is distance of the breakage apart from the inspection well cover center；RmThe detection conducting wire disconnected for the damaged sector
Total resistance value；R0For the resistance value of the detection conductor；α is the central angle radian number of the damaged sector.
Preferably, the area of the breakage, is calculated as follows:
Wherein, S is the area of the breakage；L is distance of the breakage apart from the inspection well cover center；N1For the fan
The number in area；R is the radius of the inspection well cover；N is the item number of the damaged sector detection conducting wire.
Preferably, the microprocessor passes through LoRa, NB-IoT, eMTC, 2G, 3G or 4G communication and control
Center electrical connection.
Compared with prior art, it is provided by the invention detection road surface inspection well cover breakage method, reach it is following the utility model has the advantages that
First, the present invention uses the detection method of more sector detection networks, realizes the quantitative analysis to inspection well cover breakage,
It can accurately detect the region, position and damaged area of inspection well cover breakage, convenient for comprehensively being detected to inspection well cover breakage,
To evaluate the security risk grade of inspection well cover, it is convenient for administrative staff's priority processing, improves disposal efficiency.
Second, the present invention can not only detect inspection well cover through breakage, for only occurring in the broken of inspection shaft cap upper surface
Damage and fragmentation, also being capable of timely testing and evaluation.
Third, the present invention can alarm to breakage, so that it is more comprehensive to the detection of inspection well cover breakage, it is applicable in model
It encloses more extensively.
Below by drawings and examples, technical scheme of the present invention will be described in further detail.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present application, constitutes part of this application, this Shen
Illustrative embodiments and their description please are not constituted an undue limitation on the present application for explaining the application.In the accompanying drawings:
Fig. 1 is the flow chart that the method for road surface inspection well cover breakage is detected in the embodiment of the present invention 1；
Fig. 2 is the inspection well cover structural schematic diagram that the method for road surface inspection well cover breakage is detected in the embodiment of the present invention 1；
Fig. 3 is the flow chart that the method for road surface inspection well cover breakage is detected in the embodiment of the present invention 2；
Fig. 4 is that more sector manhole cover damages detect network arrangement figure in the embodiment of the present invention 3；
Fig. 5 is that single sector detects network in the embodiment of the present invention 3；
Fig. 6 is that single sector detects network equivalent circuit diagram in the embodiment of the present invention 3；
Fig. 7 is manhole cover damage detection schematic diagram in the embodiment of the present invention 3.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description.It should be noted that described embodiment only actually is a part of the embodiment of the present invention, rather than whole realities
Example is applied, and is actually merely illustrative, never as to the present invention and its application or any restrictions used.The guarantor of the application
Protect range as defined by the appended claims.
Embodiment 1:
The specific embodiment of method shown in Figure 1 for herein described detection road surface inspection well cover breakage, this method packet
Include step:
Step 101 provides the inspection well cover for having detection device, wherein
The inspection well cover includes upper surface 1 and lower surface 2, and one side of the inspection well cover close to road surface is the upper surface 1,
One side of the inspection well cover far from road surface is lower surface 2；The detection device is located at the lower surface 2 of the inspection well cover, including fan
Area's detection circuit 3 and detection terminal 4, it is shown in Figure 2；The detection terminal 4 is located in the lower surface 2 of the inspection well cover
Between, including battery, microprocessor and vibrating sensor；The sector is located at the inspection well cover lower surface 2, around the inspection
Survey the equal point arrangement of terminal 4, the number N of the sector1≥2；Each sector includes detection conducting wire and converging wires, the remittance
Conductance line is two, and the radial direction along the inspection well cover is arranged；The detection conducting wire is located between two converging wires
It is arranged in parallel, item number n >=2 of the detection conducting wire；The converging wires are electrically connected with the microprocessor；The vibrating sensing
Device is electrically connected with the battery and the microprocessor respectively；The battery respectively with the microprocessor and the vibrating sensing
Device electrical connection；The microprocessor is electrically connected with the battery, the converging wires, the vibrating sensor respectively.The remittance
The material of conductance line includes copper, and the material of the detection conducting wire includes terne metal；
Step 102, when the upper surface breakage of the inspection well cover, the inspection well cover is detected by the vibrating sensor
Vibration frequency, and vibration frequency when initially being installed by the vibration frequency of the inspection well cover and the inspection well cover calculates the basement
The accounting of weight when the weight and the inspection well cover that the upper surface breakage of well lid is lost initially are installed；Wherein, the inspection well cover
Weight when initially installing of upper surface the breakage weight and the inspection well cover lost accounting, calculated as follows:
Wherein, the weight when weight and the inspection well cover that x is the upper surface breakage loss of the inspection well cover are initially installed
Accounting；f0Vibration frequency when initially being installed for the inspection well cover；fxFor the vibration frequency of the inspection well cover.
Step 103, when the upper and lower surfaces of the inspection well cover through it is damaged when, detected by the microprocessor broken
The total resistance value for damaging sector, total resistance value when by the total resistance value of the damaged sector and the not damaged breakage sector are opposed
Than judging the detection conducting wire disconnected, being calculated described in breakage distance by the total resistance value of the detection conducting wire of the disconnection
The distance at inspection well cover center, and the distance by breakage apart from the inspection well cover center calculates the area of breakage；Wherein,
Total resistance value when the breakage sector is not damaged, is calculated as follows:
Wherein, RLFor total resistance value of breakage sector when not damaged；R1、R2、……、RnThe respectively described damaged fan
The resistance value of the every detection conducting wire in area.
Distance of the breakage apart from the inspection well cover center, is calculated as follows:
Wherein, l is distance of the breakage apart from the inspection well cover center；RmThe detection conducting wire disconnected for the damaged sector
Total resistance value；R0For the resistance value of the detection conductor；α is the central angle radian number of the damaged sector.
The area of the breakage, is calculated as follows:
Wherein, S is the area of the breakage；L is distance of the breakage apart from the inspection well cover center；N1For the fan
The number in area；R is the radius of the inspection well cover；N is the item number of the damaged sector detection conducting wire.
The present embodiment uses the detection method of more sector detection networks, realizes the quantitative analysis to inspection well cover breakage, energy
Enough regions for accurately detecting inspection well cover breakage, position and damaged area, convenient for comprehensively being detected to inspection well cover breakage, from
And the security risk grade of inspection well cover is evaluated, it is convenient for administrative staff's priority processing, improves disposal efficiency.Basement can not only be detected
Well lid through breakage, also being capable of timely testing and evaluation for only occurring in the breakage and fragmentation of inspection shaft cap upper surface.
Embodiment 2:
Another embodiment of method shown in Figure 3 for the detection road surface inspection well cover breakage provided by the present application,
Method comprising steps of
Step 201 provides the inspection well cover for having detection device, wherein
The inspection well cover includes upper and lower surfaces, and one side of the inspection well cover close to road surface is the upper surface, institute
Stating one side of the inspection well cover far from road surface is lower surface；The detection device is located at the lower surface of the inspection well cover, including sector inspection
Slowdown monitoring circuit and detection terminal；It is described detection terminal be located at the inspection well cover lower surface centre, including battery, microprocessor,
And vibrating sensor；The sector is located at the inspection well cover lower surface, around described detection terminal etc. point arrangement, the sector
Number N1≥2；Each sector includes detection conducting wire and converging wires, and the converging wires are two, along the inspection shaft
The radial direction of lid is arranged；The detection conducting wire is arranged in parallel between two converging wires, the detection conducting wire
Item number n >=2；The converging wires are electrically connected with the microprocessor；The vibrating sensor respectively with the battery and described
Microprocessor electrical connection；The battery is electrically connected with the microprocessor and the vibrating sensor respectively；The microprocessor
It is electrically connected respectively with the battery, the converging wires, the vibrating sensor；The detection conducting wire is arc or straight line；
The detection conducting wire is equidistantly to arrange or is unequal spacing arrangement；The material of the converging wires includes copper, the detection
The material of conducting wire includes terne metal；The microprocessor passes through LoRa, NB-IoT, eMTC, 2G, 3G or 4G side wireless communication
Formula is electrically connected with control centre.
Step 202, when the upper surface breakage of the inspection well cover, the inspection well cover is detected by the vibrating sensor
Vibration frequency, and vibration frequency when initially being installed by the vibration frequency of the inspection well cover and the inspection well cover calculates the basement
The accounting of weight when the weight and the inspection well cover that the upper surface breakage of well lid is lost initially are installed；Wherein, the inspection well cover
Weight when initially installing of upper surface the breakage weight and the inspection well cover lost accounting, calculated as follows:
Wherein, the weight when weight and the inspection well cover that x is the upper surface breakage loss of the inspection well cover are initially installed
Accounting；f0Vibration frequency when initially being installed for the inspection well cover；fxFor the vibration frequency of the inspection well cover；
When the microprocessor initially installs the weight that the upper surface breakage of the inspection well cover is lost and the inspection well cover
The accounting of weight be sent to the control centre；
The control centre is initially installed by the weight that the upper surface breakage of the inspection well cover is lost with the inspection well cover
When weight accounting, assess the damaged degree of the inspection well cover, by the damaged degree be sent to administrative staff computer or
On mobile phone.
Step 203, when the upper and lower surfaces of the inspection well cover through it is damaged when, detected by the microprocessor broken
The total resistance value for damaging sector, total resistance value when by the total resistance value of the damaged sector and the not damaged breakage sector are opposed
Than judging the detection conducting wire disconnected, being calculated described in breakage distance by the total resistance value of the detection conducting wire of the disconnection
The distance at inspection well cover center, and the distance by breakage apart from the inspection well cover center calculates the area of breakage；Wherein,
Total resistance value when the breakage sector is not damaged, is calculated as follows:
Wherein, RLFor total resistance value of breakage sector when not damaged；R1、R2、……、RnThe respectively described damaged fan
The resistance value of the every detection conducting wire in area.
Distance of the breakage apart from the inspection well cover center, is calculated as follows:
Wherein, l is distance of the breakage apart from the inspection well cover center；RmThe detection conducting wire disconnected for the damaged sector
Total resistance value；R0For the resistance value of the detection conductor；α is the central angle radian number of the damaged sector.
The area of the breakage, is calculated as follows:
Wherein, S is the area of the breakage；L is distance of the breakage apart from the inspection well cover center；N1For the fan
The number in area；R is the radius of the inspection well cover；N is the item number of the damaged sector detection conducting wire.
The damaged area is sent the control centre by the microprocessor；
The control centre assesses the damaged degree of the inspection well cover by the damaged area, and the damaged degree is sent out
It is sent on the computer or mobile phone of administrative staff.
The present embodiment uses the detection method of more sector detection networks, realizes the quantitative analysis to inspection well cover breakage, energy
Enough regions for accurately detecting inspection well cover breakage, position and damaged area, convenient for comprehensively being detected to inspection well cover breakage, from
And the security risk grade of inspection well cover is evaluated, it is convenient for administrative staff's priority processing, improves disposal efficiency.Basement can not only be detected
Well lid through breakage, also being capable of timely testing and evaluation for only occurring in the breakage and fragmentation of inspection shaft cap upper surface.It can
It alarms breakage, so that more comprehensive to the detection of inspection well cover breakage, the scope of application is more extensive.
Embodiment 3:
This application provides detection road surface inspection well cover breakage method a practical embodiment, method comprising steps of
The purpose of the present embodiment is with a kind of new manhole cover damage detection circuit and manhole cover damage appraisal procedure, Neng Gouzhun
Determine the damage location of position well lid, the accurate damaged area for estimating well lid, and in the case where well lid lower surface is not damaged,
It is able to detect that the breakage of well lid upper surface.
The purpose of the present embodiment is realized by following scheme: passing through a kind of manhole cover damage that more sector detection circuits are constituted
Network is detected, the position of the region and breaking point of precise positioning manhole cover damage apart from well lid center is calculated by the impedance of circuit
It sets, to have accurate judgement to the damaged degree of well lid, and the degree of danger of manhole cover damage is assessed, and passes through
LoRa NB-IoT eMTC 2G 3G the communications such as 4G pass to control centre, control centre will alarm after being assessed
Information is pushed on the computer or mobile phone of administrative staff, and related personnel is notified to carry out site inspection and processing.Meanwhile according to logical
It crosses and detection after well lid to the vibration frequency of well lid is rolled to vehicle, the damaged degree of well lid is calculated from another dimension, even if
In the case that appearance lower surface is intact, also accurately it can judge and alarm.
(1) network detecting method of breaking point
As shown in figure 4, the manhole cover damage for being made of more sectors detection conducting wire, converging wires and detection terminal detects
Network selects number of sectors according to the requirement of detection accuracy, can be 4.Arch section is detection conducting wire, selects section
Product is small, resistivity is big, intensity is small, the plain conductor of the small material of toughness, such as terne metal.Resistivity determines greatly the length of conducting wire
Degree is different, and impedance differs greatly, and the accuracy of detection is higher；The cable that sectional area is small, intensity is small, toughness is small can guarantee
Cable disconnects in time when manhole cover damage, improves the accuracy rate of detection.Straight line portion is converging wires, selects thinner copper
Conducting wire, contrasting detection conducting wire, resistance can be ignored.
Such as Fig. 5, every detection line is equivalent to a resistance for the electric power network distribution of each sector, all detection lines etc.
The detection network that resistor coupled in parallel forms a sector is imitated, the detection circuit of each sector is equivalent at Fig. 6, therefore each sector etc.
Imitate resistance are as follows:
Wherein, RLFor total resistance value of breakage sector when not damaged；R1、R2、R3、R4The respectively described damaged sector
The resistance value of every detection conducting wire.
Because of R1、R2、R3、R4Resistance it is different, and with detect conducting wire length it is directly proportional, in arc angle phase
With in the case where, the radius of the length and circular arc that detect conducting wire is directly proportional.A resistance or multiple resistance are disconnected in parallel circuit
It opens, the resistance value of whole network will become larger, that is, manhole cover damage has occurred, and the resistance value detected is bigger, damaged more serious.Than
When occurring damaged such as the darkened locations of Fig. 7, position detection R1Wire break, therefore equivalent resistance becomes:
By detecting that change in resistance is RL' when, as R1It disconnects, according to R1Detect conductor resistance and detection conducting wire radian
Radius is directly proportional, can distance l with accurate judgement damage location apart from well lid center are as follows:
Wherein, l is distance of the breakage apart from the inspection well cover center；R0For the resistance of the detection conductor
Value；α is the central angle radian number of the damaged sector.
The assessment of manhole cover damage area is mainly based upon security consideration, and damaged area reckoning is damaged sector and broken conductors
The maximum value that region calculates, for example, the radius of well lid is r, detection network is divided into 4 sectors, and each sector arranges that 4 detections are led
Line (is equidistantly divided into 5 parts), and due to extrapolating distance l of the damage location apart from well lid center according to detection, then single-point passes through
Wearing out damage area is following formula, such as detects multiple spot breakage, then by damaged area accumulation.
By detecting the resistance value of tetra- sectors A, B, C, D, when detecting the sector A change in resistance, the resistance of disconnection is R1
When, so that it may the accurately position of positioning breakage sector number A and opposite center, to be accurately located breaking point in well lid
Position and damaged area.
(2) method for detecting vibration of damaged degree
The breakage of well lid is mostly due to vehicle and the external force factors such as rolls or hit, when well lid is quickly rolled by vehicle
After can do simple harmonic oscillation, the amplitude and initial phase of simple harmonic oscillation are related with the primary condition of vibration, the period of vibration or frequency with
Primary condition is unrelated, and related with the inherent characteristic of object, referred to as intrinsic frequency or natural period.That is the vibration frequency of well lid
It is unrelated with the primary condition such as the vehicle that rolls, it is related with its hardness, quality, outer dimension, if the same well lid is because broken
Damage will lead to quality and outer dimension changes, and the vibration frequency of well lid can also change.Therefore, detection well lid is by vehicle
Vibration frequency after rolling, and the frequency situation of change of well lid vibration is detected and compares, well lid can be judged from another angle
Breakage whether occurs, i.e., it is damaged whether serious, even if well lid lower surface is intact, also it is capable of the breakage of accurate judgement well lid.
The frequency calculation formula of well lid simple harmonic oscillation is as follows:
Wherein, f is vibration frequency, and k is stiffness coefficient, and m is well lid weight.
It is assumed that installation well lid detection terminal when well lid be it is intact, the reference frequency calculated at this time be f0, manhole cover damage it
Simple harmonic oscillation frequency starts to deviate afterwards, and frequency is bigger, and the weight of well lid is smaller, and manhole cover damage is bigger, it is assumed that the vibration detected
Frequency is fx, then the accounting of manhole cover damage is lost weight and initial weight are as follows:
If lower surface is not destroyed, shape and the constant situation of material, stiffness coefficient are held essentially constant, but with broken
The fragment of damage is gradually separated with well lid, and the weight of well lid is reducing, and the frequency of vibration is caused to become larger, can be with when frequency changes greatly
Judgement is damaged more serious, issues manhole cover damage alarm, related personnel is notified to check and safeguard.
If well lid lower surface is destroyed, the shape of well lid and quality is caused all to change, the frequency of well lid vibration
It can change, combine detection device that can more accurately judge well to the testing result of manhole cover damage detection network at this time
The damaged degree of lid.
The detection mode of well lid vibration is exactly to install vibrating sensor in the lower surface of well lid, is knocked for detecting well lid
Or the vibration frequency after being rolled by vehicle, and analyze with vibration frequency when initial installation, if it find that vibration frequency
Rate changes, that is, can determine whether that breakage has occurred in well lid, and vibration frequency changes faster, and the breakage that well lid occurs is more serious.
As can be seen from the above embodiments beneficial effect existing for the application is:
First, the present invention uses the detection method of more sector detection networks, realizes the quantitative analysis to inspection well cover breakage,
It can accurately detect the region, position and damaged area of inspection well cover breakage, convenient for comprehensively being detected to inspection well cover breakage,
To evaluate the security risk grade of inspection well cover, it is convenient for administrative staff's priority processing, improves disposal efficiency.
Second, the present invention can not only detect inspection well cover through breakage, for only occurring in the broken of inspection shaft cap upper surface
Damage and fragmentation, also being capable of timely testing and evaluation.
Third, the present invention can alarm to breakage, so that it is more comprehensive to the detection of inspection well cover breakage, it is applicable in model
It encloses more extensively.
Above by drawings and examples, example is passed through to of the invention one although doing to technical solution of the present invention
A little specific embodiments are described in detail, but it should be appreciated by those skilled in the art example above is merely to carry out
Illustrate, the range being not intended to be limiting of the invention.Although the present invention is described in detail referring to the foregoing embodiments, right
For those skilled in the art, it can still modify to technical solution documented by previous embodiment or right
Part of technical characteristic is equivalently replaced.All within the spirits and principles of the present invention, it is made it is any modification, equally replace
It changes, improve, should all be included in the protection scope of the present invention.The scope of the present invention is defined by the appended claims.
Claims (10)
1. a kind of method for detecting road surface inspection well cover breakage, which is characterized in that comprising steps of
The inspection well cover for having detection device is provided, wherein
The inspection well cover includes upper and lower surfaces, and one side of the inspection well cover close to road surface is the upper surface, the basement
One side of the well lid far from road surface is lower surface；The detection device is located at the lower surface of the inspection well cover, including sector detection electricity
Road and detection terminal；It is described detection terminal be located at the inspection well cover lower surface centre, including battery, microprocessor and
Vibrating sensor；The sector is located at the inspection well cover lower surface, around described detection terminal etc. point arrangement, of the sector
Number N1≥2；Each sector includes detection conducting wire and converging wires, and the converging wires are two, along the inspection well cover
Radial direction setting；The detection conducting wire is arranged in parallel between two converging wires, the item number n of the detection conducting wire
≥2；The converging wires are electrically connected with the microprocessor；The vibrating sensor respectively with the battery and the micro process
Device electrical connection；The battery is electrically connected with the microprocessor and the vibrating sensor respectively；The microprocessor respectively with
The battery, the converging wires, vibrating sensor electrical connection；
When the upper surface breakage of the inspection well cover, the vibration frequency of the inspection well cover is detected by the vibrating sensor, and
Vibration frequency when initially being installed by the vibration frequency and the inspection well cover of the inspection well cover calculates the upper table of the inspection well cover
The accounting of weight when the weight and the inspection well cover that face breakage is lost initially are installed；
When the upper and lower surfaces of the inspection well cover are through breakage, pass through total electricity that the microprocessor detects damaged sector
Resistance value, total resistance value when by the total resistance value of the damaged sector and the not damaged breakage sector compare, judge to break
The detection conducting wire opened calculates breakage apart from the inspection well cover center by the total resistance value of the detection conducting wire of the disconnection
Distance, and the distance by breakage apart from the inspection well cover center calculates the area of breakage.
2. the method for detection road surface inspection well cover breakage according to claim 1, which is characterized in that further comprise the steps of: described
The accounting of weight when microprocessor initially installs the weight that the upper surface breakage of the inspection well cover is lost and the inspection well cover
It is sent to control centre；
When the weight and the inspection well cover that the control centre is lost by the upper surface breakage of the inspection well cover are initially installed
The accounting of weight assesses the damaged degree of the inspection well cover, sends the damaged degree in the computer or mobile phone of administrative staff
On.
3. the method for detection road surface inspection well cover breakage according to claim 1, which is characterized in that further comprise the steps of: described
The damaged area is sent control centre by microprocessor；
The control centre assesses the damaged degree of the inspection well cover by the damaged area, sends the damaged degree to
On the computer or mobile phone of administrative staff.
4. the method for detection road surface inspection well cover breakage according to claim 1, which is characterized in that the detection conducting wire is arc
Shape or straight line；The detection conducting wire is equidistantly to arrange or is unequal spacing arrangement.
5. the method for detection road surface inspection well cover breakage according to claim 1, which is characterized in that the material of the converging wires
Matter includes copper, and the material of the detection conducting wire includes terne metal.
6. the method for detection road surface inspection well cover breakage according to claim 1, which is characterized in that the upper table of the inspection well cover
The accounting of weight when the weight and the inspection well cover that face breakage is lost initially are installed, is calculated as follows:
Wherein, x is accounting for for weight of the weight lost of upper surface breakage of inspection well cover when initially installing with the inspection well cover
Than；f0Vibration frequency when initially being installed for the inspection well cover；fxFor the vibration frequency of the inspection well cover.
7. the method for detection road surface inspection well cover breakage according to claim 1, which is characterized in that do not break the breakage sector
Total resistance value when damage, is calculated as follows:
Wherein, RLFor total resistance value of breakage sector when not damaged；R1、R2、……、RnThe respectively described damaged sector it is every
The resistance value of item detection conducting wire.
8. the method for detection road surface inspection well cover breakage according to claim 1, which is characterized in that breakage is apart from the basement
The distance of well lid center, is calculated as follows:
Wherein, l is distance of the breakage apart from the inspection well cover center；RmThe total of conducting wire is detected for what the damaged sector disconnected
Resistance value；R0For the resistance value of the detection conductor；α is the central angle radian number of the damaged sector.
9. the method for detection road surface inspection well cover breakage according to claim 1, which is characterized in that the face of the breakage
Product, is calculated as follows:
Wherein, S is the area of the breakage；L is distance of the breakage apart from the inspection well cover center；N1For the sector
Number；R is the radius of the inspection well cover；N is the item number of the damaged sector detection conducting wire.
10. the method for detection road surface inspection well cover breakage according to claim 1, which is characterized in that the microprocessor is logical
LoRa, NB-IoT, eMTC, 2G, 3G or 4G communication is crossed to be electrically connected with control centre.
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