CN110659711A - RFID temperature measurement label for cable connector, installation method and temperature measurement method - Google Patents
RFID temperature measurement label for cable connector, installation method and temperature measurement method Download PDFInfo
- Publication number
- CN110659711A CN110659711A CN201910984865.9A CN201910984865A CN110659711A CN 110659711 A CN110659711 A CN 110659711A CN 201910984865 A CN201910984865 A CN 201910984865A CN 110659711 A CN110659711 A CN 110659711A
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- rfid
- temperature measurement
- tag
- antenna
- chip
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/0716—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips at least one of the integrated circuit chips comprising a sensor or an interface to a sensor
- G06K19/0717—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips at least one of the integrated circuit chips comprising a sensor or an interface to a sensor the sensor being capable of sensing environmental conditions such as temperature history or pressure
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/02—Means for indicating or recording specially adapted for thermometers
- G01K1/024—Means for indicating or recording specially adapted for thermometers for remote indication
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K17/00—Methods 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
- G06K17/0022—Methods 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
- G06K17/0029—Methods 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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
- G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
- G06K19/07758—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card arrangements for adhering the record carrier to further objects or living beings, functioning as an identification tag
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Engineering & Computer Science (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention discloses an RFID temperature measurement tag for a T-shaped cable joint, which comprises an RFID tag antenna and an RFID tag chip, wherein the RFID tag antenna comprises a substrate and a copper sheet, the substrate is of an annular structure, the copper sheet is attached to the surface of the substrate, and the RFID tag chip is respectively connected with capacitive coupling poles at two ends of the RFID tag antenna. Adopt above-mentioned technical scheme, simple structure, the technique is reasonable, and simple to operate is particularly suitable for T type cable joint, and the manufacturing raw materials is various and the price is low, and is not fragile, simple to operate, and the temperature toleration is strong, can carry out real-time supervision, easily promotes.
Description
Technical Field
The invention relates to the technical field of power equipment, in particular to an RFID (radio frequency identification) temperature measurement tag for a cable joint, an installation method and a temperature measurement method.
Background
In a power supply system, the requirement on the reliability of power supply is higher and higher, and a ring main unit, a high-voltage cable branch box and the like of a transformer substation are important electrical equipment and are easy to generate heat, so that the temperature measurement of key nodes of the ring main unit, the high-voltage cable branch box and the like becomes more and more important.
In the practical application of electric power cable, the key node of looped netowrk cabinet and high tension cable feeder pillar etc. is located cable joint department usually, and this part node can be because ageing, contact failure, the load is overweight or artificial misoperation to lead to resistance increase and generate heat, serious can puncture even and cause the electric power accident, make equipment such as cables have certain application risk at any time, in case this type of problem takes place, the cable is very probably can be fired on fire, the consequence and the loss of bringing are very huge. In order to solve the problem of fire, the cable risk needs to be warned, and the cable temperature detection is a very effective method in terms of industry experience.
The traditional method for detecting the temperature of the cable has low efficiency and no real-time property, is easy to cause danger in a free period of inspection, is easy to cause low-level errors in manual work, and has certain danger for workers when measuring the high-voltage cable; there are some cable temperature check out test set in recent times to adopt the sensor mode, it can real-time detection cable temperature, data pass through wireless mode and give the backstage and handle, real-time and efficiency scheduling problem has been solved, certain intelligence has, but most all have the installation difficulty, the temperature toleration is poor, shortcoming such as anti-interference not, but these sensing equipment all need the battery, these batteries have life-span problem, in addition when the risk of starting a fire takes place, the battery can take place the burning or explode, the severity of risk is aggravated more likely.
In order to solve the technical problem of passive temperature measurement, electronic and material researchers propose a sound surface temperature measurement scheme and produce related products, the scheme solves the risk problem of the battery, but the sound surface device has higher requirements on the structure of the product and is inconvenient to install; moreover, the characteristics of data returned from different devices are different, and each group of products and environmental factors need to be modified, so that the application is also limited.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of Invention
The invention aims to solve the technical problem and provides an RFID temperature measurement label for a cable joint and an installation method, wherein the RFID temperature measurement label is placed inside the cable joint, can measure the temperature inside the joint outside the cable joint, has a simple structure, various manufacturing raw materials and low price, is not easy to damage, is convenient to install, has strong temperature resistance, can perform real-time monitoring, and is easy to popularize.
In order to solve the technical problems, the technical scheme of the invention is as follows:
the utility model provides a RFID temperature measurement label for cable joint, includes RFID tag antenna and RFID tag chip, RFID tag antenna includes base plate and copper sheet, the base plate is annular or semi-annular structure, the copper sheet is attached on the base plate surface, RFID tag chip is connected with the capacitive coupling utmost point at RFID tag antenna both ends respectively.
Preferably, the substrate is made of FR-4 epoxy glass fiber.
Preferably, the copper sheet is coated with a protective ink layer.
Preferably, the RFID tag chip incorporates a 512-bit data storage unit.
Preferably, the RFID tag chip supports EPC Global C1G2 v1.2 communication interface.
Preferably, the outer diameter of the substrate is 37.6mm, the inner diameter of the substrate is 24mm, and the thickness of the substrate is 0.4-102 mm.
The invention also discloses an installation method of the RFID temperature measurement label for the cable joint, which comprises the following steps:
the RFID temperature measurement tag is tightly attached to one side of the insulating plug with metal, and the RFID tag chip faces the insulating plug 2;
the flat pad, the elastic pad and the nut are sequentially sleeved on the bolt and are screwed tightly;
placing the RFID temperature measurement tag and the insulating plug into the sleeve, and screwing the RFID temperature measurement tag and the insulating plug with the bolt;
and finishing the installation.
Preferably, the inner diameter of the RFID temperature measurement label is not smaller than the outer diameter of the flat pad, and the RFID temperature measurement label is flush with the flat pad.
Preferably, the mounting hole in the center of the RFID temperature measurement tag, the metal ring of the insulating plug 2 and the axis coincide.
The invention also discloses a temperature measurement method of the RFID temperature measurement label for the cable joint, which comprises the following steps:
sending out electromagnetic waves in an ultrahigh frequency band through an RFID reader-writer antenna preset on a cable joint;
the RFID tag antenna collects electromagnetic waves sent by the RFID reader antenna;
the RFID tag antenna converts the collected electromagnetic waves into electric energy to supply power to the RFID chip;
the RFID chip operates to acquire temperature data of the inner conductor of the cable joint;
the RFID chip transmits the acquired temperature data to an RFID reader antenna;
the RFID reader antenna sends the received temperature data to the RFID reader;
and the RFID reader-writer sends the received temperature data to a background server through a wireless network.
Preferably, the RFID reader-writer antenna emits electromagnetic waves with ultrahigh frequency band of 840MHz-960 MHz.
Preferably, the electromagnetic wave emitted from the RFID reader antenna includes a command.
Preferably, the RFID tag antenna sends the received instruction to an RFID tag chip, and the RFID tag chip measures the temperature inside the cable joint according to the instruction.
The invention has the following characteristics and beneficial effects:
by adopting the technical scheme, the cable joint has the advantages of simple structure, reasonable technology, convenience in installation, particular suitability for cable joints, various manufacturing raw materials, low price, difficulty in damage, convenience in installation, strong temperature resistance, capability of carrying out real-time monitoring and easiness in popularization.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic view of the installation of fig. 1.
In the figure, 1-RFID temperature measurement label, 11-copper sheet, 12-substrate, 13-RFID label chip, 2-insulation plug, 3-nut, 4-elastic pad, 5-flat pad, 6-bolt and 7-cable joint.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
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, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The invention provides an RFID (radio frequency identification) temperature measurement tag 1 for a cable joint, which comprises an RFID tag antenna and an RFID tag chip 13, wherein the RFID tag antenna comprises a substrate 12 and a copper sheet 11, the substrate 12 is in an annular or semi-annular structure, the copper sheet 11 is attached to the surface of the substrate 12, and the RFID tag chip 13 is respectively connected with capacitive coupling poles at two ends of the RFID tag antenna.
The substrate 12 with the preferred annular structure is more firm in installation, the contact surface of the RFID temperature measurement tag and the cable is larger, and the monitoring precision is higher.
Among the above-mentioned technical scheme, simple structure, the technique is reasonable, and simple to operate is particularly suitable for cable joint, makes that the raw materials are various and the price is low, and is not fragile, simple to operate, and the temperature toleration is strong, can carry out real-time supervision, easily promotes.
During installation, as shown in fig. 2, the RFID temperature measurement tag 1 is tightly attached to one side of the insulating plug 2, which is provided with metal, the RFID tag chip faces the insulating plug 2, the circle center of the installation hole in the center of the RFID temperature measurement tag 1 and the circle center of the metal ring of the insulating plug 2 are the same point, the flat pad 5, the elastic pad 4 and the nut 3 are sequentially placed in the bolt 6 to be screwed, and then the insulating plug 2 and the RFID temperature measurement tag 1 are placed in the sleeve to be screwed with the bolt 6. At this point, the cable joint installation is finished.
After the cable joint is provided with the RFID temperature measurement label 1, a reader-writer antenna can be externally connected with an RFID reader-writer, and the antenna transmits radio frequency signals to supply power to the RFID temperature measurement label 1 and transmit data, so that the temperature of the RFID temperature measurement label 1 is read, and the read temperature is the temperature inside the cable joint because the RFID temperature measurement label 1 is on the insulating plug. Due to the fact that the RFID temperature measurement tag 1 is in a radio frequency technology and does not have a built-in power supply, passive and wireless temperature measurement can be achieved, and theoretically, the RFID temperature measurement tag can be continuously used for more than 10 years. The requirement that products added in a ring main unit, a high-voltage cable branch box and the like for power application cannot be electrified and are not convenient to directly contact for temperature measurement is met.
Further, the substrate 12 is made of FR-4 epoxy glass fiber. The copper sheet 11 is coated with a protective ink layer.
By adding the protective ink layer, the copper sheet is prevented from being oxidized by contacting air
The invention further provides that the RFID label chip is internally provided with a 512-bit data storage unit. The RFID tag chip supports an EPC Global C1G2 communication interface.
In the above technical solution, the RFID tag chip 13 obtains energy through an RF electromagnetic wave of 840MHz to 960MHz by using an advanced ultra high frequency radio wave energy collection technology, and a 512-bit data storage unit is built in to store data such as user information.
It can be understood that the signal of the built-in temperature sensor of the RFID tag chip 13 is read nonlinearly, and the back-end number can be quickly linearized according to preset parameters, thereby facilitating the conversion between the read-out original temperature data and the temperature in degrees centigrade (fahrenheit). The chip supports EPC Global C1G2 v1.2 communication interface, and the matching of various UHF RFID read-write equipment can support a user to very conveniently build a passive wireless temperature sensing system within a range of 10 meters. When the antenna is matched with an RFID label to work, the reading sensitivity can reach about-18.7 dBm.
Specifically, the outer diameter of the base plate is 37.6mm, and the inner diameter of the base plate is 24 mm.
The invention does not limit the size and material of the appearance dimension, and only the example shows that the label is a circular object. The shape of the copper sheet on the surface of the RFID tag antenna is not limited, and can be in various modes, but the shape of the copper sheet determines that the copper sheet has metal resistance, namely, the RFID test tag 1 has better sensitivity on the metal surface than the RFID test tag 1 not tested on the metal surface.
It can be understood that the metal resistance of the RFID tag antenna is the same, the RFID tag antenna forms a radiation part through a copper sheet on a substrate, a metal object is used as a reflection part, and energy radiated by the radiation part is reflected by the reflection part and then superposed, so that the gain of the RFID tag antenna is improved, and the identification distance of the RFID tag antenna is greatly increased. When the RFID tag antenna is attached to a metal object (such as a fixing part like a nut), the reflection part can shield the influence of a metal part on one side of the reflection part, so that the identification distance is further increased, and the metal resistance effect is achieved.
Furthermore, a special antenna design simulation software is utilized to model a model of an application scheme, main parameters such as dielectric constants, sizes and the like of various components of the cable joint are substituted into the software, a model which is almost the same as a real object diagram is designed, then the RFID tag antenna is designed according to the model, and the optimal impedance matching of the RFID tag antenna near 915MHz is simulated.
Further, as can be seen from the RFID tag reading distance formula (1), the identification distance r is mainly determined by the gain Gt and the transmission coefficient τ of the tag antenna under the condition that Pt and Gr are constant. The impedance matching between the RFID tag antenna and the RFID tag chip directly affects the transmission coefficient τ. The transmission coefficient of the antenna is improved by matching the width and the circumference of the copper bar radiation part with the impedance of the RFID label chip connected to the feed part, so that the identification distance of the RFID label antenna is improved.
Furthermore, the thickness of the substrate can be increased to enable the energy reflected by the reflection part and the energy reflected by the radiation part to be further superposed at a remote position to improve the gain of the antenna so as to obtain a longer identification distance.
The substrate thickness is preferably 0.4-1.2 mm.
Wherein Pt is the minimum touch threshold work of the RFID label chip;
gr is a gain parameter related to the card reader;
…………………………………………………………（1）
the invention also discloses an installation method of the RFID temperature measurement label for the cable joint, which comprises the following steps:
the RFID temperature measurement tag is tightly attached to one side of the insulating plug with metal, and the RFID tag chip faces the insulating plug 2;
the flat pad, the elastic pad and the nut are sequentially sleeved on the bolt and are screwed tightly;
placing the RFID temperature measurement tag and the insulating plug into the sleeve, and screwing the RFID temperature measurement tag and the insulating plug with the bolt;
and finishing the installation.
Specifically, the inner diameter of the RFID temperature measurement label is not smaller than the outer diameter of the flat pad, and the RFID temperature measurement label is flush with the flat pad.
As can be understood, the RFID temperature measurement tag is close to the cable to be monitored, so that the monitoring precision is higher.
Furthermore, a mounting hole in the center of the RFID temperature measurement tag, the metal ring of the insulating plug 2 and the axis are overlapped.
It can be understood that the connecting side of the insulating plug is provided with a groove corresponding to the nut.
It can be understood that the connecting side of the insulating plug is provided with a metal ring.
The invention also discloses a temperature measurement method of the RFID temperature measurement label for the cable joint, which comprises the following steps:
sending out electromagnetic waves in an ultrahigh frequency band through an RFID reader-writer antenna preset on a cable joint;
the RFID tag antenna collects electromagnetic waves sent by the RFID reader antenna;
the RFID tag antenna converts the collected electromagnetic waves into electric energy to supply power to the RFID chip;
the RFID chip operates to acquire temperature data of the inner conductor of the cable joint;
the RFID chip transmits the acquired temperature data to an RFID reader antenna;
the RFID reader antenna sends the received temperature data to the RFID reader;
and the RFID reader-writer sends the received temperature data to a background server through a wireless network.
Specifically, the electromagnetic wave of the ultrahigh frequency band emitted by the RFID reader-writer antenna is 840MHz-960 MHz.
The preferred electromagnetic wave frequency is 915 MHz.
In addition, the 4G device is preferably used as a wireless network for data transmission.
Further, the electromagnetic wave emitted by the RFID reader antenna contains an instruction.
Specifically, the RFID tag antenna sends the received instruction to the RFID tag chip, and the RFID tag chip measures the temperature inside the cable joint according to the instruction.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments, including the components, without departing from the principles and spirit of the invention, and still fall within the scope of the invention.
Claims (9)
1. The utility model provides a RFID temperature measurement label for cable joint, includes RFID label antenna and RFID label chip, its characterized in that, RFID label antenna includes base plate and copper sheet, the base plate is annular or semi-annular structure, the copper sheet is attached on the base plate surface, RFID label chip is connected with the capacitive coupling utmost point at RFID label antenna both ends respectively.
2. The RFID temperature tag for cable joints according to claim 1, wherein the substrate is made of FR-4 epoxy glass fiber.
3. The RFID temperature measuring tag for cable joints according to claim 1, wherein the copper sheet is coated with a protective ink layer.
4. The RFID thermometric tag for a cable joint according to claim 1, wherein the RFID tag chip supports an EPC Global C1G2 communication interface.
5. A method for installing the RFID temperature measuring label for the cable joint according to any one of the claims 1-4, characterized by comprising the following steps:
the RFID temperature measurement tag is tightly attached to one side of the insulating plug with metal, and the RFID tag chip faces the insulating plug 2;
the flat pad, the elastic pad and the nut are sequentially sleeved on the bolt and are screwed tightly;
placing the RFID temperature measurement tag and the insulating plug into the sleeve, and screwing the RFID temperature measurement tag and the insulating plug with the bolt;
and finishing the installation.
6. The method for installing the RFID temperature measurement tag for the cable joint as claimed in claim 5, wherein the installation hole at the center of the RFID temperature measurement tag, the insulating plug metal ring and the shaft center are coincided.
7. A temperature measurement method of the RFID temperature measurement label for the cable joint according to any one of claims 1-4, characterized by comprising the following steps:
the RFID tag antenna converts the collected electromagnetic waves into electric energy to supply power to the RFID chip;
the RFID chip operates to acquire temperature data of the inner conductor of the cable joint;
the RFID chip transmits the acquired temperature data to an RFID reader antenna;
the RFID reader antenna sends the received temperature data to the RFID reader;
and the RFID reader-writer sends the received temperature data to a background server through a wireless network.
8. The method as claimed in claim 7, wherein the RFID reader antenna emits the electromagnetic wave of the uhf band in the range of 840MHz to 960 MHz.
9. The method as claimed in claim 8, wherein the electromagnetic wave emitted from the RFID reader/writer antenna includes a command, the RFID tag antenna transmits the received command to the RFID tag chip, and the RFID tag chip measures the temperature inside the cable joint according to the command.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910984865.9A CN110659711A (en) | 2019-10-16 | 2019-10-16 | RFID temperature measurement label for cable connector, installation method and temperature measurement method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910984865.9A CN110659711A (en) | 2019-10-16 | 2019-10-16 | RFID temperature measurement label for cable connector, installation method and temperature measurement method |
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| CN110659711A true CN110659711A (en) | 2020-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910984865.9A Pending CN110659711A (en) | 2019-10-16 | 2019-10-16 | RFID temperature measurement label for cable connector, installation method and temperature measurement method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111721439A (en) * | 2020-05-19 | 2020-09-29 | 浙江悦和科技有限公司 | Passive temperature measurement end cap of work under UHF frequency channel |
| CN112362188A (en) * | 2020-11-11 | 2021-02-12 | 国网湖南省电力有限公司 | Enhanced RFID passive temperature measurement label for power cable connector and temperature measurement method |
| CN112665742A (en) * | 2020-11-20 | 2021-04-16 | 深圳供电局有限公司 | Cable temperature measuring device |
| CN113237899A (en) * | 2021-05-13 | 2021-08-10 | 广州高力电缆附件有限公司 | Cable joint operation state detection system and method for enameling lead of cable joint |
| WO2022037078A1 (en) * | 2020-08-17 | 2022-02-24 | 长缆电工科技股份有限公司 | Temperature measurement plug used in cooperation with ring main unit plug temperature measurement system |
-
2019
- 2019-10-16 CN CN201910984865.9A patent/CN110659711A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111721439A (en) * | 2020-05-19 | 2020-09-29 | 浙江悦和科技有限公司 | Passive temperature measurement end cap of work under UHF frequency channel |
| CN111721439B (en) * | 2020-05-19 | 2022-05-10 | 浙江悦和科技有限公司 | Passive temperature measurement end cap of work under UHF frequency channel |
| WO2022037078A1 (en) * | 2020-08-17 | 2022-02-24 | 长缆电工科技股份有限公司 | Temperature measurement plug used in cooperation with ring main unit plug temperature measurement system |
| CN112362188A (en) * | 2020-11-11 | 2021-02-12 | 国网湖南省电力有限公司 | Enhanced RFID passive temperature measurement label for power cable connector and temperature measurement method |
| CN112665742A (en) * | 2020-11-20 | 2021-04-16 | 深圳供电局有限公司 | Cable temperature measuring device |
| CN113237899A (en) * | 2021-05-13 | 2021-08-10 | 广州高力电缆附件有限公司 | Cable joint operation state detection system and method for enameling lead of cable joint |
| CN113237899B (en) * | 2021-05-13 | 2022-11-01 | 广州高力电缆附件有限公司 | Cable joint operation state detection system and method for enameling lead of cable joint |
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