CN114239776B - Displacement electronic tag and cable displacement detection method - Google Patents

Displacement electronic tag and cable displacement detection method Download PDF

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Publication number
CN114239776B
CN114239776B CN202210170833.7A CN202210170833A CN114239776B CN 114239776 B CN114239776 B CN 114239776B CN 202210170833 A CN202210170833 A CN 202210170833A CN 114239776 B CN114239776 B CN 114239776B
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information storage
storage unit
unit
data
electronic tag
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CN114239776A (en
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张世元
孙宇东
陈贵森
陈天才
何兵兵
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Zhejiang Tuwei Technology Co ltd
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Zhejiang Tuwei Technology Co ltd
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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06KGRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K17/00Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
    • G06K17/0022Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device
    • G06K17/0029Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device the arrangement being specially adapted for wireless interrogation of grouped or bundled articles tagged with wireless record carriers
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/02Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

The invention relates to a displacement electronic tag and a cable displacement detection method, wherein the displacement electronic tag comprises: the information storage unit is in communication connection with the inspection unit; the motion detection unit comprises an electromagnetic induction piece, a mass block which is movably arranged in the electromagnetic induction piece and is electrically connected with the information storage unit, or a capacitor unit which is electrically connected with the information storage unit. According to the technical scheme, when the measured object moves, the electronic tag moves along with the measured object, so that the mass block and the electromagnetic induction piece interact to generate electric energy, or the electric energy is discharged through the capacitance unit, the data in the information storage unit is changed and latched, and when the measured object is detected outside the measured object, the data in the information storage unit can be acquired by the inspection unit, so that the data in the information storage unit can be changed under the condition that external electric energy is not provided, the electric energy is saved, the data in the information storage unit can be timely updated according to the movement condition of the electronic tag, and the method is efficient, convenient and fast.

Description

Displacement electronic tag and cable displacement detection method
Technical Field
The invention relates to the technical field of cable detection, in particular to a displacement electronic tag and a cable displacement detection method.
Background
The high-voltage cable is buried underground, and displacement changes can be generated on the high-voltage cable due to geological flow. Cause the cable to rise and cause voltage fracture even, connector damage, still can lead to the condition of large tracts of land power failure, to whether the cable produces the motion displacement, cable security personnel hardly discover, in the correlation technique, bind on objects to be measured such as cable through electronic tags, carry out the detection of displacement change to the object to be measured.
If the notice number CN215495084U includes an antenna, a signal emitter, a mounting plate, an electronic tag housing, a displacement sensor and a power supply, the motion state of the attached article can be identified, and a motion state signal is sent to an external mobile terminal through the signal emitter, so that a user can grasp the state information of the article in real time, and the use requirement can be met.
Although the electronic tags are used for displacement monitoring, the technical scheme is completely different from the patent scheme, and the electronic tags are divided into active electronic tags and passive electronic tags. Firstly, the technical scheme adopts an active electronic tag mode, a battery is required to be arranged in the technical scheme, the battery cannot work when the displacement detection unit is separated from the battery, secondly, the technical scheme does not disclose the specific structure of the displacement detection unit, only introduces a concept of monitoring motion by using the active electronic tag, and thirdly, the technical scheme adopts the active electronic tag and is internally provided with a microprocessor. And thus the cost will be greatly increased. This is also quite different from the patented way of directly connecting with a flash memory chip by directly utilizing micromechanical motion monitoring. Thus, the design principle is different, and the cost, the use convenience and the use range are different. The patent technology is far superior to the comparison patent.
Disclosure of Invention
The invention aims to provide a displacement electronic tag which can efficiently and conveniently detect the change of cable displacement and has better applicability.
In order to realize the purpose, the invention adopts the following technical scheme:
the utility model provides a displacement electronic tags, includes electronic tags and patrols and examines the unit, electronic tags includes:
the information storage unit is in communication connection with the inspection unit;
the motion detection unit comprises an electromagnetic induction piece, a mass block which is movably arranged in the electromagnetic induction piece and is electrically connected with the information storage unit, or a capacitor unit which is electrically connected with the information storage unit;
when the mass block moves, kinetic energy is converted into electric energy through the electromagnetic induction piece, or the capacitance value of the capacitance unit changes, data in the information storage unit are changed, and the information storage unit transmits the data to the inspection unit.
Preferably, the capacitor unit includes a pair of electrode plates disposed oppositely, the two electrode plates are disposed in a movable manner, and each electrode plate is correspondingly electrically connected to the information storage unit.
Preferably, the electromagnetic induction member is a coil.
Preferably, the electronic tag further comprises a time unit electrically connected with the information storage unit, and the time unit is electrically connected with the motion detection unit.
Preferably, the electronic tag further comprises a communication unit electrically connected with the information storage unit, the communication unit is electrically connected with the inspection unit, and the data in the information storage unit are transmitted to the inspection unit through the communication unit.
Preferably, the communication unit is an RFID communication unit.
The invention also provides a cable displacement detection method, which uses the displacement electronic tag and comprises the following steps:
s1: if the electronic tag moves along with the cable, the mass block moves in the electromagnetic induction piece and generates electric energy, or the data in the information storage unit is changed through the capacitance value change of the capacitor unit;
s2: and the inspection unit reads the changed data in the information storage unit and judges that the cable has displacement change.
Preferably, the changing of the data in the information storage unit in step S1 includes the steps of: and discharging the charges in the information storage unit under the action of the mass block and the electromagnetic induction piece or the capacitor unit, and rewriting the data in the information storage unit from 1 to 0.
Preferably, step S2 includes: the inspection unit reads the changed data in the information storage unit, and simultaneously charges electric energy into the information storage unit, and the data in the information storage unit are completely erased and read to be 1.
Compared with the prior art, the invention has the beneficial effects that:
the displacement electronic tag comprises an information storage unit and a motion detection unit which are in communication connection with an inspection unit, wherein the motion detection unit comprises an electromagnetic induction piece and a mass block or a capacitance unit which is movably arranged, the electronic tag moves along with the displacement change of a measured object, so that the mass block and the electromagnetic induction piece interact with each other to generate electric energy, or the electric energy is discharged through the capacitance unit, the data in the information storage unit is changed and latched, when the measured object is detected outside, the data in the information storage unit can be acquired by the inspection unit, therefore, the data in the information storage unit can be changed under the condition that external electric energy is not provided, the electric energy is saved, the data in the information storage unit can be timely updated according to the motion state of the electronic tag, and the displacement electronic tag is efficient and convenient.
Drawings
Fig. 1 is a schematic structural diagram of a displacement electronic tag according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a motion detection unit according to an embodiment of the present invention.
Description of reference numerals:
1. an electronic tag; 11. a motion detection unit; 111. an electromagnetic induction member; 112. a mass block; 2. a routing inspection unit; 3. an electrical cable.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 and fig. 2, a displacement electronic tag of the present invention at least includes:
the information storage unit is in communication connection with the inspection unit 2;
the motion detection unit 11 comprises an electromagnetic induction piece 111, and a mass block 112 movably arranged in the electromagnetic induction piece 111 and electrically connected with the information storage unit, or a capacitor unit electrically connected with the information storage unit;
when the mass block 112 moves, kinetic energy is converted into electric energy through the electromagnetic induction piece 111, or the electric energy is discharged through the capacitor unit, data in the information storage unit is changed, and the data is transmitted to the inspection unit 2 through the information storage unit.
The electronic tag 1 can be applied to various displacement detection occasions; the information storage unit can adopt a Flash chip; the inspection unit 2 can be a scanner, and during inspection, the inspection unit 2 can charge electric energy into the electronic tag 1; a plurality of electronic tags 1 can be fixedly arranged on the cable 3, and the electronic tags 1 not only have the functions of data transmission and storage, but also can detect and record whether the cable 3 moves or not.
It can be understood that, as the displacement detection of the cable 3: when the displacement of the cable 3 changes, the electronic tag 1 moves along with the cable, so that the mass block 112 and the electromagnetic induction piece 111 interact with each other to generate electric energy, or the electric energy is discharged through the capacitor unit, data in the information storage unit is rewritten and latched, when an operator inspects the cable, the data in the information storage unit can be acquired by the inspection unit 2, and the electronic tag 1 is found to move, so that the data in the information storage unit can be changed under the condition that external electric energy is not provided, the electric energy is saved, the data in the information storage unit can be updated in time according to the movement condition of the electronic tag 1, the displacement change of the cable 3 is acquired in time, the method is accurate, efficient and convenient, and the operator can monitor safety margin according to the displacement of the cable 3, find problems as early as possible, and improve the safety performance of the cable 3; in addition, because the energy storage unit for supplying power is not needed, the whole structure of the electronic tag 1 is greatly reduced, the structure is more compact, and the occupation of space is reduced.
In one embodiment, the electromagnetic induction element 111 is a coil, the mass block 112 is inserted into the coil, the mass block 112 moves in the electromagnetic induction element 111 and generates electric energy, and discharges electric charge in the information storage unit, so that data in the information storage unit is rewritten from 1 to 0, and the inspection unit 2 can judge that a cable or other object to be detected has displacement change during inspection; patrol and examine unit 2 and read when data in the information storage unit charge the electric energy in the information storage unit, data in the information storage unit are all erased to read out data and be 1, consequently, just can release the electric charge in the information storage unit under the condition that does not provide external electric energy, change data into 0 by 1, not only practice thrift the electric energy, can also in time update the data in the information storage unit according to electronic tags 1's motion situation, promptly acquire the displacement change of the testee, it is accurate again high-efficient convenient, still make electronic tags 1 overall structure reduce greatly, the structure is compacter, reduce the occupation in space.
In another embodiment, the difference from the previous embodiment is that, in this embodiment, the capacitor unit includes a pair of plates that are oppositely disposed, the two plates are disposed in a moving manner, and each of the plates is electrically connected to the information storage unit, it can be understood that the two plates are relatively displaced, so that the capacitance value of the capacitor unit is changed, and the charge in the information storage unit is discharged, so that the data in the information storage unit is rewritten from 1 to 0, and the inspection unit 2 can determine that the cable or other object to be tested has been displaced when performing inspection; the inspection unit 2 charges electric energy into the information storage unit while reading the data in the information storage unit, the data in the information storage unit are all erased, and the read data is 1, so that the technical effect same as that of the previous embodiment is achieved.
In addition, electronic tags 1 still include with the time unit that the information storage unit electricity is connected, the time unit with motion detecting element 11 electricity is connected, and the electron transition also takes place the motion when cable 3 moves, and the motion information in with motion detecting element 11 and the time information in the time unit are saved in the information storage unit, when operating personnel patrols and examines, can learn the motion information that concrete moment produced, can be more detailed acquire the data message of cable 3 displacement change to be more favorable to the monitoring to cable 3 displacement.
In addition, electronic tags 1 still include with the communication unit that the information storage unit electricity is connected, the communication unit with patrol and examine unit 2 electricity and be connected, through the communication unit will data transmission in the information storage unit extremely patrol and examine in the unit 2, specifically, the communication unit is the RFID communication unit, supports mode communication such as low frequency, high frequency, hyperfrequency, if cable 3 takes place the displacement change, when operating personnel patrols and examines, through the data signal transmission in the information storage unit is to patrolling and examining unit 2 to send the displacement and report an emergency and ask for help or increased vigilance in communication process, simultaneously, can also fill ability to electronic tags 1.
The embodiment of the present invention further provides a cable displacement detection method, please continue to refer to fig. 1-2, the use of the displacement electronic tag includes the following steps:
s1: if the electronic tag 1 moves along with the cable 3, the mass block 112 moves in the electromagnetic induction element 111 and generates electric energy, or the two polar plates in the capacitance unit generate relative displacement to change the capacitance value, the data in the information storage unit is changed;
specifically, the mass block 112 and the electromagnetic induction element 111 or the capacitance unit act to discharge the charge in the information storage unit, and the data in the information storage unit is rewritten from 1 to 0.
S2: the inspection unit 2 reads the changed motion information data in the information storage unit, judges that the cable 3 has displacement change, simultaneously charges electric energy into the information storage unit, completely erases the data in the information storage unit, and reads out the data as 1.
The method is different from the traditional method in that: in the traditional method, the electric charge stored in the information storage unit is mostly controlled to discharge through a logic circuit to realize the change of data 0 and 1, however, in the method, a micro-mechanical structure consisting of an electromagnetic induction piece 111 and a mass block 112 or a capacitor unit is used as the micro-mechanical structure to rewrite the data in the information storage unit, and under the condition of no external power supply, the movement of a cable 3 drives the electronic tag 1 to move, so that the mass block 112 moves in the electromagnetic induction piece 111 to convert kinetic energy into electric energy, or the capacitance value is changed, the data in the information storage unit is rewritten, and the movement time detected by the time unit is transmitted into the information storage unit, thereby achieving the purpose of detecting the displacement of the cable 3; in addition, because an energy storage unit for supplying power is not required to be arranged, the whole structure of the electronic tag 1 is greatly reduced.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.

Claims (9)

1. A displacement electronic tag, comprising:
the information storage unit is in communication connection with the inspection unit (2);
the motion detection unit (11) comprises an electromagnetic induction piece (111) and a mass block (112) which is movably arranged in the electromagnetic induction piece (111) and is electrically connected with the information storage unit, or a capacitor unit which is electrically connected with the information storage unit;
when the mass block (112) moves, kinetic energy is converted into electric energy through the electromagnetic induction piece (111), or data in the information storage unit is rewritten and latched through capacitance value change of the capacitor unit, and when an operator inspects the data, the data in the information storage unit can be acquired by the inspection unit (2);
through the action of the mass block (112) and the electromagnetic induction piece (111) or the capacitor unit, the charges in the information storage unit are discharged, and the data in the information storage unit is rewritten from 1 to 0;
the inspection unit (2) reads the changed motion information data in the information storage unit, judges that displacement change occurs, and simultaneously charges electric energy into the information storage unit, and the data in the information storage unit are all erased and read to be 1.
2. The displacement electronic tag according to claim 1, wherein the capacitor unit comprises a pair of plates disposed oppositely, the two plates are disposed in a moving manner, and each of the plates is electrically connected to the information storage unit.
3. A displacement electronic tag according to claim 1, characterized in that the electromagnetic induction member (111) is a coil.
4. A displacement electronic tag according to claim 1, characterized in that the electronic tag (1) further comprises a time unit electrically connected to the information storage unit, the time unit being electrically connected to the motion detection unit (11).
5. The displacement electronic tag according to claim 1, characterized in that the electronic tag (1) further comprises a communication unit electrically connected with the information storage unit, the communication unit is electrically connected with the inspection unit (2), and data in the information storage unit is transmitted into the inspection unit (2) through the communication unit.
6. The displaced electronic tag of claim 5, wherein the communication unit is an RFID communication unit.
7. A cable displacement detection method, characterized in that the displacement electronic tag of any one of claims 1-6 is used, comprising the following steps:
s1: if the electronic tag (1) moves along with the cable (3), the mass block (112) moves in the electromagnetic induction piece (111) and generates electric energy, or the capacitance value of the capacitance unit changes, the data in the information storage unit is changed;
s2: and the inspection unit (2) reads the changed data in the information storage unit and judges that the cable (3) has displacement change.
8. The cable displacement detecting method according to claim 7, wherein the step of changing the data in the information storage unit in step S1 includes the steps of: and through the action of the mass block (112) and the electromagnetic induction piece (111) or the capacitor unit, the charges in the information storage unit are discharged, and the data in the information storage unit is rewritten from 1 to 0.
9. The cable displacement detecting method according to claim 7, wherein the step S2 includes: the inspection unit (2) reads the changed data in the information storage unit, and simultaneously charges electric energy into the information storage unit, all data in the information storage unit are erased, and the read data are 1.
CN202210170833.7A 2022-02-24 2022-02-24 Displacement electronic tag and cable displacement detection method Active CN114239776B (en)

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101539985A (en) * 2008-03-20 2009-09-23 上海锐帆信息科技有限公司 Realization method for active read-only motion detection electronic tags
CN104654997A (en) * 2015-02-14 2015-05-27 中国科学院测量与地球物理研究所 MDOF (multi-degree of freedom) differential capacitance displacement sensor calibration device
CN204440500U (en) * 2015-03-17 2015-07-01 国家电网公司 Cable cruising inspection system
CN106845566A (en) * 2016-11-29 2017-06-13 国网浙江省电力公司杭州供电公司 A kind of power equipment method for inspecting and system based on RFID technique
CN206431771U (en) * 2017-01-12 2017-08-22 国网上海市电力公司 A kind of portable transformer and distribution power station intelligent patrol detection instrument system
CN206469829U (en) * 2016-10-31 2017-09-05 苏州豪美控制器有限公司 A kind of displacement transducer
CN212276436U (en) * 2020-06-12 2021-01-01 中建水务环保有限公司 Underground facility inspection instrument
CN112985353A (en) * 2021-05-20 2021-06-18 浙江图维科技股份有限公司 Cable anti-settlement displacement monitoring method and system based on electromagnetic detection
CN215495084U (en) * 2021-08-16 2022-01-11 上海系德信息技术有限公司 Electronic tag for identifying motion state

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070152045A1 (en) * 2005-12-29 2007-07-05 International Business Machines Corporation Label for an electronic product that is electronically altered when the electronic product changes
CN103679349A (en) * 2013-11-28 2014-03-26 国家电网公司 Android based cellphone inspection terminal system
CN104376359A (en) * 2014-11-17 2015-02-25 中国电子科技集团公司第二十八研究所 Active electronic tag capable of detecting and recording angle of inclination
US9946990B2 (en) * 2015-03-25 2018-04-17 Joseph Marsh Ryan, III System and method for determining product movement using a sensor
CN106355666A (en) * 2016-08-24 2017-01-25 国网青海省电力公司海西供电公司 Power equipment inspection device based on RFID (Radio Frequency Identification Device) electronic tag
CN111547106A (en) * 2020-04-24 2020-08-18 北京家梦科技有限公司 Truck positioning device and method based on wind energy self-power generation
CN112637261A (en) * 2020-11-12 2021-04-09 国网浙江宁波市鄞州区供电有限公司 Equipment maintenance informatization management system based on handheld terminal

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101539985A (en) * 2008-03-20 2009-09-23 上海锐帆信息科技有限公司 Realization method for active read-only motion detection electronic tags
CN104654997A (en) * 2015-02-14 2015-05-27 中国科学院测量与地球物理研究所 MDOF (multi-degree of freedom) differential capacitance displacement sensor calibration device
CN204440500U (en) * 2015-03-17 2015-07-01 国家电网公司 Cable cruising inspection system
CN206469829U (en) * 2016-10-31 2017-09-05 苏州豪美控制器有限公司 A kind of displacement transducer
CN106845566A (en) * 2016-11-29 2017-06-13 国网浙江省电力公司杭州供电公司 A kind of power equipment method for inspecting and system based on RFID technique
CN206431771U (en) * 2017-01-12 2017-08-22 国网上海市电力公司 A kind of portable transformer and distribution power station intelligent patrol detection instrument system
CN212276436U (en) * 2020-06-12 2021-01-01 中建水务环保有限公司 Underground facility inspection instrument
CN112985353A (en) * 2021-05-20 2021-06-18 浙江图维科技股份有限公司 Cable anti-settlement displacement monitoring method and system based on electromagnetic detection
CN215495084U (en) * 2021-08-16 2022-01-11 上海系德信息技术有限公司 Electronic tag for identifying motion state

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