CN103793733B - A kind of pipeline identifying system based on RFID - Google Patents
A kind of pipeline identifying system based on RFID Download PDFInfo
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- CN103793733B CN103793733B CN201410065753.0A CN201410065753A CN103793733B CN 103793733 B CN103793733 B CN 103793733B CN 201410065753 A CN201410065753 A CN 201410065753A CN 103793733 B CN103793733 B CN 103793733B
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Abstract
A kind of pipeline identifying system based on RFID, including steel plastic composite wound pipe, electron marker, remote probe and read-write equipment, underground piping data handling system and the earth conductor that is attached on the outside of winding pipe on body；Winding pipe and electron marker are embedded in underground, and detection read-write equipment communicates with reading its information and communicated with data handling system with electron marker and sends to the processing system reading information on ground；Electron marker includes radio frequency chip and the passive LC resonance circuit with the wired or wireless connection of chip, and winding pipe includes being spirally wound on the metal tape on the outside of its plastic cement tube wall, metal tape outer side covers plastic protection layer；Earth conductor is electrically connected with winding pipe metal tape mutually insulated with grounded resonator end, and one electrode of metal tape and resonance electric capacity is electrically connected.It is simple structure, dependable performance, easy to implement instant invention overcomes the defect that the shallow embedded steel plastic composite wound pipe path detection for bringing of the recognizable depth of burying of existing electron marker is difficult.
Description
Technical field
The present invention relates to a kind of system for being identified to underground steel plastic composite wound pipe pipeline path.
Background technology
In city planting ductwork, the steel plastic composite wound pipe to being embedded in underground carry out regular maintenance and breakdown maintenance be must not
The work that can lack.To the positioning of underground steel plastic composite wound pipe, conventional method be using be arranged on the notable marker on ground with
Drawing reciprocal reference thing（Point pipeline）Compareed to look for pipeline path.Above-mentioned point pipeline includes the mark for basseting or buries
Enter the conductor of underground, also including various spherical（Or dish）Electron marker, is generally buried relatively deeply, in laying due to city planting ductwork
During city planting ductwork pipeline, generally pipeline top detectable position shallower from the ground is embedded in using electron marker as point pipeline
Put, to use positioner to detect the concentrator marker to obtain position and the other information of the pipeline.
But, the urban renewal that is brought due to urban development construction, urban road construction, town house are built etc. it is many because
Element, can usually cause embedded shallower electron marker initial position changes or electron marker is damaged, lost etc. so that ground
The Detection location in lower steel plastic composite wound pipe pipeline path is severely impacted.
Therefore, find it is a kind of can buried identification electron marker, solve the factors such as existing urban renewal and cause the route of pipe line
Identification difficult problem in footpath turns into the task of top priority.
The content of the invention
The technical problem to be solved in the present invention is, there is provided a kind of pipeline identifying system based on RFID, overcomes city to change
The factor such as make and cause the difficult problem of underground utilities Path Recognition.
The technical solution adopted for the present invention to solve the technical problems is：A kind of pipeline identification system based on RFID of construction
System, including steel plastic composite wound pipe, electron marker, remote probe and read-write equipment and underground piping data handling system；Should
Steel plastic composite wound pipe and electron marker are embedded in underground, and the remote probe is with read-write equipment in ground and the electron marker
Communication reads the information of the electron marker and the electron marker letter that will be read that communicated with the underground piping data handling system
Breath is sent to the underground piping data handling system；The electron marker includes radio frequency chip and wired or wireless with the chip
The passive LC resonance circuit of connection, the steel plastic composite wound pipe includes being spirally wound on the metal tape on the outside of its plastic cement tube wall,
The metal tape outer side covers plastic protection layer；
Characterized in that, the pipeline identifying system also includes being attached to connecing on body on the outside of the steel plastic composite wound pipe
Earthed conductor, the metal tape mutually insulated of the earth conductor and the steel plastic composite wound pipe and the passive LC resonance circuit
Earth terminal is electrically connected, and the steel plastic composite wound pipe metal tape is electrically connected with an electrode of the passive LC resonance circuit resonance electric capacity
Connect.
In the pipeline identifying system based on RFID of the invention, the vertical spiral of metal tape of the steel plastic composite wound pipe
It is wrapped in steel plastic composite wound pipe plastic cement tube wall outside.
In the pipeline identifying system based on RFID of the invention, the transversal bread of metal tape of the steel plastic composite wound pipe
Include the crest of two hypotenuses composition and be arranged on smooth cooperation on the outside of two hypotenuse downside and the steel plastic composite wound pipe plastic cement tube wall
Short pin.
In the pipeline identifying system based on RFID of the invention, including insulation board, the insulation board and the steel plastic compount
Axial notch between the metal tape of winding pipe is adapted to and the earth conductor is fixed on into steel plastic composite wound pipe outside.
In the pipeline identifying system based on RFID of the invention, the earth conductor is attached to the steel plastic compount winding
In the cylindrical region that the rear maximum outer rim positioned at the steel plastic composite wound pipe metal tape is constituted on body on the outside of pipe.
In the pipeline identifying system based on RFID of the invention, it is characterised in that the earth conductor and the steel are moulded
The metal tape of composite winding pipe is realized in the electrical connection of the passive LC resonance circuit：Including the same of powered cable joint
Shaft cable and fixation are connected electrically in the conductor short column on the metal tape of the steel plastic composite wound pipe, and the cable connector includes mutual
The end pieces and compressing member of threaded connection, the end pieces are insulating part, and the compressing member includes the gold being threadedly coupled with the end pieces
Category nut and the metal compaction set with metal nuts cooperation compression coaxial cable；The inner hole sleeve of the end pieces is in the conductor short column
Upper, outside is fixedly connected with the plastic protection layer of the steel plastic composite wound pipe metal tape；The earth conductor includes allowing institute
The Kong Bingjing borehole jacks for stating that coaxial cable passes through are on the end pieces of the cable connector；The metal of the cable connector compressing member
Clamping sleeve inner side electrically connects with the outer conductor of the coaxial cable, the end pieces spiral shell of the metal nuts of compressing member and the cable connector
Be fixed on the earth conductor in the plastic protection layer of the steel plastic composite wound pipe metal tape by line connection, the coaxial cable
Inner wire is electrically connected with the conductor short column；One of the inner conductor and the passive LC resonance circuit resonance electric capacity
Electrode is electrically connected, and the coaxial cable outer conductor is electrically connected with the passive LC resonance circuit ground end.
In the pipeline identifying system based on RFID of the invention, the conductor short column includes being arranged on the recessed of its end
Hole, the shrinkage pool is adapted to the inner conductor, and the inner conductor end is inserted in the shrinkage pool of the conductor short column
Electrical connection coordinates.
In the pipeline identifying system based on RFID of the invention, it is multiple that the electron marker is disposed on the steel modeling
Close on the outside of winding pipe on body, spacing distance is more than or equal to 5 meters, less than or equal to 10 meters.
Implement the pipeline identifying system based on RFID of the invention, compared with the prior art, its advantage is：
1st, because the spiral metal band by the use of steel plastic composite wound pipe is used as the antenna of electron marker, electricity is considerably increased
The depth of burying that sub-mark device can be recognized by ground location, disclosure satisfy that and electron marker is attached on steel plastic composite wound pipe
The requirement that installation, guarantee electron marker are recognized by ground installation reliable detection, overcoming existing electron marker can know
The difficult defect of other shallow the brought embedded steel plastic composite wound pipe path detection of the depth of burying；
2nd, ingenious by the use of steel plastic composite wound pipe spiral metal band as electron marker antenna, simple structure, performance can
By, it is easy to implement.
Brief description of the drawings
Fig. 1 is the schematic diagram of pipeline identifying system of the present invention based on RFID.
Fig. 2 is a kind of front view of existing steel plastic composite wound pipe.
Fig. 3 is the A portions enlarged drawing in Fig. 2.
Fig. 4 is the schematic diagram of electron marker in pipeline identifying system of the present invention based on RFID.
Fig. 5 is at the detection of pipeline identifying system medium-long range and read-write equipment and underground piping data of the present invention based on RFID
Reason systematic schematic diagram.
Fig. 6 is that the antenna of tube metal ribs and electron marker in pipeline identifying system of the present invention based on RFID connects
Connect structural perspective.
Fig. 7 is that tube metal ribs is connected with the antenna of electron marker during invention is based on the pipeline identifying system of RFID
Structural front view.
Fig. 8 is B portions enlarged drawing in Fig. 7.
Fig. 9 is I portions enlarged drawing in Fig. 8.
Specific embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
As shown in Fig. 1 to Fig. 3, Fig. 7, the pipeline identifying system based on RFID of the invention include steel plastic composite wound pipe 1,
Electron marker 2, remote probe and read-write equipment 3, underground piping data handling system 4 and it is attached to steel plastic composite wound pipe 1
Earth conductor 13 on the body of outside.
Steel plastic composite wound pipe 1 generally includes overall plastic core pipe and is spirally wound on the ribs of core tube wall, in ribs
Comprising metal reinforcements.The domestic professional standard of steel plastic composite wound pipe has：QB/T2783-2006《Buried steel plastic compount winding
Drainage pipe》、CJ/T225-2011《Buried draining steel band enhanced polyethylene (PE) helical bellows》、CJ/T329-2010
《Buried double-flat-wall steel-plastic composite winding drainpipe》.The country that complex technique produces steel plastic composite wound pipe is gone out using steel-plastic coextrusion
Professional standard has：CJ/T270-2007《Polyethylene plastic steel wound drain pipe》.
Steel plastic composite wound pipe 1 includes being spirally wound on the metal tape 10 on the outside of its plastic cement tube wall, and the outside of metal tape 10 is covered
Lid plastic protection layer 11, to prevent metal tape from being corroded.As shown in Fig. 2 in the present embodiment, the gold of steel plastic composite wound pipe
Belong to the 10 plastic cement tube wall outsides for being spirally wound on steel plastic composite wound pipe 1 vertically.In other embodiments, steel plastic compount winding
Pipe can be arranged as required to its metal tape 10, and a spiral winding metal tape can be set, and may also set up a plurality of spiral winding metal
Band.For example, metal winding band 10 can be set as follows：The cross section of the metal tape 10 of steel plastic composite wound pipe includes two
Crest that hypotenuse is constituted and be arranged on the downside of two hypotenuse with the outside of the steel plastic composite wound pipe plastic cement tube wall smooth cooperation it is short
Pin.
Steel plastic composite wound pipe 1 and electron marker 2 are embedded in underground, and remote probe is with read-write equipment 3 in ground and electricity
The communication of sub-mark device 2 reads the information of the electron marker and the electricity that will be read that communicated with the underground piping data handling system 4
Sub-mark device information is sent to the underground piping data handling system 4.
As shown in figure 4, electron marker 2 includes radio frequency chip and the passive LC resonance with the wired or wireless connection of the chip
Circuit.It is preferred that passive LC resonance circuit connects radio frequency chip by radio frequency interface.
Radio frequency chip and passive LC resonance circuit can use existing chip and circuit, for example, radio frequency chip can be used including
Logic control element, memory cell and radio frequency interface, radio frequency interface include the existing of modulation /demodulation module and VRM Voltage Regulator Module
Chip.The resonant capacitance of passive LC resonance circuit should be using the electric capacity matched with the metal tape 10 of steel plastic composite wound pipe.
Passive LC resonance circuit, can be by it by receiving the radio frequency electromagnetic signal that remote probe sends with read-write equipment 3
Electric energy needed for being converted into radio frequency chip normal work.
The modulation /demodulation module of radio frequency chip is used to carry out the modulation and demodulation of radiofrequency signal；VRM Voltage Regulator Module, is used for
The ac voltage signal to be formed is coupled to the passive LC resonance circuit carries out rectification and output DC voltage, and starts storage electricity
Energy to be the radio frequency chip and sensor power described later, when the radio frequency chip work internal enough of the electric flux of storage
When, radio frequency chip begins through ID yards and underground pipeline information corresponding with ID yards of its inside of passive LC resonance circuit transmission；
The input and output signal that logic control element decoding is obtained from radio frequency interface；By radio frequency interface to radiofrequency signal
It is modulated and demodulates, and according to requiring that row data communication can be entered with remote probe and read-write equipment 3, at least can be by identification
Information returns to remote probe and read-write equipment 3.
The mutually insulated of metal tape 10 of earth conductor 13 and steel plastic composite wound pipe 1, and connect with passive LC resonance circuit
Ground terminal is electrically connected.Steel plastic composite wound pipe metal tape 10 is electrically connected with an electrode of passive LC resonance circuit resonance electric capacity.
The unique ID identity identification informations in the whole world of the information of memory cell storage at least including the radio frequency chip, can exist accordingly
Data handling system sets up the historical archives information of the drainage pipeline.Memory cell can also store the important information of the pipeline, example
Such as, when pipeline dispatches from the factory, date of manufacture, manufacturer, the species of pipeline, specification, material, the antenna optimal parameter of pipeline are write
Deng pipeline feature information, during pipeline construction, unit in charge of construction, property right unit, supervisor, the pipeline of pipeline are write again
The pipe-line maintenance information such as numbering, purposes and buried depth, GPS geographical coordinates, pipeline rout, the azimuth information of adjacent pipe sections.
Miniature radio-frequency chip expend power very little, big antenna distinctive with steel plastic composite wound pipe combined can reach it is larger
Operating distance, it is adaptable to the underground in steel plastic composite wound pipe road recognizes at a distance.
In another embodiment of electron marker, the radio frequency chip includes external digital interface, for sensor
And the data exchange between the radio frequency chip.External digital interface is internal integrated circuit I2C meets, or serial peripheral connects
Mouth SPI.The sensor is the low-power consumption sensor with digital interface, can be temperature sensor, humidity sensor, pressure
One or more in sensor or gas sensor.The relevant position of the probe connection drainage pipeline of the sensor, and with
The radiofrequency signal of the radio frequency chip is coupled, the status information for gathering drainage pipeline, can be to the temperature of drainage pipeline, pressure
The regular maintenances such as the pernicious gas inside power, leakage scenarios, drainage pipeline and breakdown maintenance information are monitored, and can be by remote
Journey detection is connected with read-write equipment with backstage underground piping data handling system sets up historical data base.Radio frequency chip passes through rectification
The direct current energy of gained should be enough to drive above-mentioned multiple sensors.
Earth conductor 13 can be using metal, conductive rubber etc.；Laminated structure can be used, block structure can be also used.Ground connection
Conductor 13 is used to make the passive LC resonance circuit reliable ground of electron marker 2, in order to ensure that steel plastic composite wound pipe 1 is being set
Its installation is not influenceed to operate after the earth conductor 13 of electron marker 2, it is ensured that earth conductor is located at the steel plastic composite wound pipe
In the cylindrical region that the maximum outer rim of metal tape is constituted, i.e., the maximum of the composition of steel plastic composite wound pipe metal tape 10 is not protruded from
Outside profile.
Remote probe is with read-write equipment 3, underground piping data handling system 4 can be using existing RFID remote probes and reading
Write device and underground piping data handling system.For example, remote probe can be remote using RFID as shown in Figure 5 with read-write equipment 3
Journey is detected and read-write equipment, and the RFID remote probes include radio frequency interface and logic control element, radio frequency interface with read-write equipment
Including transmitter, receiver, clock generator, voltage regulator, antenna and power interface, logic control element includes microcontroller
Device, application interface driver element and memory cell.
Remote probe can be using portable remote detection and read-write equipment with read-write equipment 3, and its antenna loop area A is by generally
It is necessarily less than 1m2, it is preferred to use multiturn toroidal conductor；Due to multiturn toroidal conductor will with N2Proportionally mode increases its ring
Inductance, this will make antenna present high impedance and limit can be driven to electric current therein, therefore preferably use amplifier
Transmitted waveform is converted into high voltage output.The inductance and the number of turn will also be defined the signal bandwidth of communication, and transmission per second
Information content, in the present invention, it is preferred on the basis of lowest signal bandwidth, minimum communication quality, save power consumption and plus
Strong subsurface investigation distance.
For example, having 0.1m2Area, the antenna of 50 circles, when being driven with the electric current of 10A magnitudes, it will thus provide 50A m2Idol
Polar moment, this is enough to mid background noise level, is perforated through the weak conduction stratum of many types, is provided the ground test for being more than 10m
Survey and communication capacity.
Spiral metal conductor antenna is preferably used based on normal direction mould radiation mode, i.e., the wavelength (λ) of described transmission signal
Much larger than the diameter (D) of helical ring, preferably λ/D>5.56, now helical antenna have 8-shaped in the plane comprising the axis of screw
Directional diagram, is there is greatest irradiation in the plane of the axis of screw.The spiral metal conductor of usual steel plastic composite wound pipe is straight
Footpath is about 0.15~4 meter, and during as normal direction mould, applicable wavelengths are more than 0.83~22.22 meter, and wavelength is f=c/ with the relation of frequency
λ, wherein c are the light velocity；Therefore remote probe is less than 13.5MHz~361MHz with the working frequency of read-write equipment.It is preferred that long-range visit
It is 1~33kHz to survey with the operating frequency range of read-write equipment, for example, 577Hz or 33kHz is solving the remote of underground piping
Detection problem.
As shown in Figures 6 to 9, in the present embodiment, the metal tape 10 and nothing of earth conductor 13 and steel plastic composite wound pipe
What the electrical connection of source LC resonance circuits was realized in：Coaxial cable 15 and fixation including powered cable joint are connected electrically in steel modeling
Conductor short column 10a on the metal tape 10 of composite winding pipe, cable connector includes the mutually end pieces 20 of threaded connection and compresses
Part, end pieces 20 are insulating part, compressing member include the metal nuts 19 that are threadedly coupled with the end pieces 20 and with the metal nuts
19 coordinate the metal compaction set 18 for compressing coaxial cable.The inner hole sleeve of the end pieces 20 on conductor short column 10a, its outside with
The plastic protection layer 11 of steel plastic composite wound pipe metal tape 10 is fixedly connected, and earth conductor 13 includes allowing what coaxial cable was passed through
The Kong Bingjing borehole jacks are on the end pieces 20 of cable connector.The inner side of the metal compaction set 18 of cable connector compressing member is coaxial with this
The outer conductor 14 of cable 15 is electrically connected, the metal nuts 19 of compressing member are threadedly coupled with the end pieces 20 of cable connector, and this is connect
Earthed conductor 13 is fixed in the plastic protection layer 11 of steel plastic composite wound pipe metal tape 10, the inner wire 12 of the coaxial cable 15 with
Conductor short column 10a is electrically connected.The inner wire 12 of coaxial cable 15 is electrically connected with an electrode of passive LC resonance circuit resonance electric capacity
Connect, the outer conductor 14 of coaxial cable 15 is electrically connected with passive LC resonance circuit ground end.
Electron marker 2 is pasted and fixed on the outer wall of steel plastic composite wound pipe.For the less pipeline of bore, can also adopt
Fixed with snap ring.In order to ensure the absolute tightness of passive LC resonance circuit and radio frequency chip assembly, its shell can be using applicable
In the plastic sealing material used under the complex environment of underground, so that it is guaranteed that product can for a long time be used in underground.
As shown in fig. 7, setting insulation board 16, the axial direction between the insulation board 16 and the metal tape of steel plastic composite wound pipe 1
Groove is adapted to, and earth conductor 13 is fixed on insulation board 16 into the plastic cement tube wall outside of steel plastic composite wound pipe 1 or steel plastic compount is twined
On the metal tape 10 of pipe 1（Both mutually insulateds）.
In other embodiments, the spiral metal conductor of steel plastic composite wound pipe is by 3 to 4 parallel metal strips coaxial spirals
It is wound in 3 or 4 spirals.When one of spiral metal conductor is taken as aerial coil, and by harmony to working frequency, and
When other coaxial metal spiral conductors are not tuned, then the electric current for being excited in these coaxial metal spiral conductors will produce coupling
Close, inductance weakens the magnetic field produced by the spiral metal conductor for being taken as antenna.To this spiral metal with multi-head spiral
Conductor, preferred pair remaining coaxial spiral is equally connected to independent passive LC resonance circuit, independent Passive LC using coaxial line
Resonance circuit uses the series capacitance of the series resonance frequency that coaxial spiral can be tuned to be higher by than working frequency more than one times,
And less resistance is set；Make the impedance of the resonance circuit based on electric capacity, and can add the voltage sensed in working screw
Driving current on the direction of high-intensity magnetic field.
As shown in figure 9, in order to improve the reliability that the inner wire 12 of coaxial cable 15 is electrically connected with conductor short column 10a,
The end of conductor short column 10a sets shrinkage pool, it is ensured that the shrinkage pool is adapted to inner conductor 12, by the inner conductor
Insert electrical connection in the shrinkage pool of conductor short column 10a and coordinate in 12 end.
In other embodiments, the metal tape 10 of earth conductor 13 and steel plastic composite wound pipe and passive LC resonance circuit electricity
Connection can use other attachment structures, for example, wire can be respectively adopted by earth conductor 13 and steel plastic composite wound pipe
Metal tape 10 is electrically connected with the earth terminal and resonance capacitance electrode of passive LC resonance circuit respectively.
The steel plastic composite wound pipe to underground carries out Detection location for convenience, and electron marker 2 is disposed on into steel
On the outside body of plastic composite winding pipe 1, spacing distance is desirable more than or equal to 5 meters, less than or equal to 10 meters.
Claims (8)
1. a kind of pipeline identifying system based on RFID, including steel plastic composite wound pipe, electron marker, remote probe and read-write
Device and underground piping data handling system；The steel plastic composite wound pipe and electron marker are embedded in underground, the remote probe
With read-write equipment ground communicated with the electron marker read the electron marker information and with the underground piping data at
The communication of reason system sends to the underground piping data handling system electron marker information of reading；The electron marker bag
Radio frequency chip and the passive LC resonance circuit with the wired or wireless connection of the chip are included, the steel plastic composite wound pipe includes spiral
The metal tape on the outside of its plastic cement tube wall is wrapped in, the metal tape outer side covers plastic protection layer；
Characterized in that, the pipeline identifying system also includes that the ground connection being attached on the outside of the steel plastic composite wound pipe on body is led
Body, the earth conductor and the metal tape mutually insulated of the steel plastic composite wound pipe and the ground connection of the passive LC resonance circuit
End electrical connection, the steel plastic composite wound pipe metal tape is electrically connected with an electrode of the passive LC resonance circuit resonance electric capacity.
2. the pipeline identifying system of RFID is based on as claimed in claim 1, it is characterised in that the steel plastic composite wound pipe
Metal tape is spirally wound on steel plastic composite wound pipe plastic cement tube wall outside vertically.
3. the pipeline identifying system of RFID is based on as claimed in claim 1, it is characterised in that the steel plastic composite wound pipe
Metal tape cross section includes the crest of two hypotenuses composition and is arranged on two hypotenuse downside and the steel plastic composite wound pipe plastic pipe
The short pin of smooth cooperation on the outside of wall.
4. the pipeline identifying system of RFID is based on as claimed in claim 1, it is characterised in that including insulation board, the insulation board
It is adapted to the axial notch between the metal tape of the steel plastic composite wound pipe and the earth conductor is fixed on steel modeling again
Close winding pipe outside.
5. the pipeline identifying system of RFID is based on as claimed in claim 1, it is characterised in that the earth conductor is attached to institute
State the cylinder that the rear maximum outer rim positioned at the steel plastic composite wound pipe metal tape is constituted on body on the outside of steel plastic composite wound pipe
In region.
6. the pipeline identifying system based on RFID as described in one of claim 1 to 5, it is characterised in that the earth conductor
It is realized in the metal tape of the steel plastic composite wound pipe and the electrical connection of the passive LC resonance circuit：Including powered
The coaxial cable of cable joint and fixation are connected electrically in the conductor short column on the metal tape of the steel plastic composite wound pipe, and the cable connects
Head includes the end pieces and compressing member of mutually threaded connection, and the end pieces are insulating part, and the compressing member includes and the end pieces spiral shell
The metal nuts of line connection and the metal compaction set with metal nuts cooperation compression coaxial cable；The inner hole sleeve of the end pieces exists
On the conductor short column, outside is fixedly connected with the plastic protection layer of the steel plastic composite wound pipe metal tape；The earth conductor
Including allow that the coaxial cable passes through the Kong Bingjing borehole jacks on the end pieces of the cable connector；The cable connector pressure
The metal compaction set inner side of tight part electrically connects with the outer conductor of the coaxial cable, the metal nuts of compressing member and the cable connector
End pieces threaded connection the earth conductor is fixed in the plastic protection layer of the steel plastic composite wound pipe metal tape, should
The inner wire of coaxial cable is electrically connected with the conductor short column；The inner conductor and the passive LC resonance circuit resonance
One electrode electrical connection of electric capacity, the coaxial cable outer conductor is electrically connected with the passive LC resonance circuit ground end.
7. the pipeline identifying system of RFID is based on as claimed in claim 6, it is characterised in that the conductor short column includes setting
In the shrinkage pool of its end, the shrinkage pool is adapted to the inner conductor, and the conductor is inserted in the inner conductor end
Electrical connection coordinates in the shrinkage pool of short column.
8. the pipeline identifying system based on RFID as described in one of claim 1 to 5, it is characterised in that the electronic mark
Device is disposed on the outside of the steel plastic composite wound pipe on body, and spacing distance is more than or equal to 5 meters, less than or equal to 10 meters.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410065753.0A CN103793733B (en) | 2014-02-26 | 2014-02-26 | A kind of pipeline identifying system based on RFID |
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| CN201410065753.0A CN103793733B (en) | 2014-02-26 | 2014-02-26 | A kind of pipeline identifying system based on RFID |
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| CN103793733A CN103793733A (en) | 2014-05-14 |
| CN103793733B true CN103793733B (en) | 2017-06-13 |
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| CN201765336U (en) * | 2010-08-09 | 2011-03-16 | 深圳市杰瑞特科技有限公司 | Underground pipeline positioning marker |
| CN202120283U (en) * | 2011-03-04 | 2012-01-18 | 易门供电有限公司 | Electronic identification management system |
| CN103597497A (en) * | 2011-06-27 | 2014-02-19 | 3M创新有限公司 | Flexible magnetic core electronic marker |
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