CN108320014B - Passive radio frequency identification tag, drop-out fuse device and monitoring system thereof - Google Patents
Passive radio frequency identification tag, drop-out fuse device and monitoring system thereof Download PDFInfo
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- CN108320014B CN108320014B CN201810319919.5A CN201810319919A CN108320014B CN 108320014 B CN108320014 B CN 108320014B CN 201810319919 A CN201810319919 A CN 201810319919A CN 108320014 B CN108320014 B CN 108320014B
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 35
- 230000005484 gravity Effects 0.000 claims abstract description 130
- 230000004927 fusion Effects 0.000 claims description 29
- 238000000034 method Methods 0.000 claims description 7
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims description 3
- 229910052753 mercury Inorganic materials 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
Classifications
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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
- G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
- G06K19/0772—Physical layout of the record carrier
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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
- G06K19/073—Special arrangements for circuits, e.g. for protecting identification code in memory
- G06K19/07309—Means for preventing undesired reading or writing from or onto record carriers
- G06K19/07345—Means for preventing undesired reading or writing from or onto record carriers by activating or deactivating at least a part of the circuit on the record carrier, e.g. ON/OFF switches
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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
- G06K19/077—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
Abstract
The application relates to an RFID tag, a drop-out fuse and a monitoring system thereof. A passive RFID tag according to the present application includes: a first loop including a first RFID chip having two terminals, a first antenna, and a first gravity transfer switch, one terminal of the first RFID chip, the first antenna, the first gravity transfer switch, and the other terminal of the first RFID chip being connected in series; and a second loop including a second RFID chip having two terminals, a second antenna, and a second gravity transfer switch, one terminal of the second RFID chip, the second antenna, the second gravity transfer switch, and the other terminal of the second RFID chip being connected in series, wherein when the orientation of the passive RFID tag is in the first position, the first gravity transfer switch is turned on and the second gravity transfer switch is turned off; when the orientation of the passive RFID tag is in the second position, the first gravity switch is off and the second gravity switch is on.
Description
Technical Field
The present disclosure relates to radio frequency identification tags, drop-out fuses, and monitoring systems therefor, and more particularly, to passive radio frequency identification tags, drop-out fuse devices having passive radio frequency identification tags, and fuse monitoring systems for monitoring the operational status of drop-out fuse devices.
Background
With the continuous development of smart grid construction, more kinds of power equipment need to promote automation monitoring level. Therefore, the on-line monitoring technology of the drop-out fuse widely applied in the high-voltage circuit has higher requirements. For example, chinese patent application No.201310580098.8 discloses an on-line monitoring technique for implementing a drop-out fuse using a wireless gravity sensor as a core component. In this patent application, because the wireless gravity sensor is powered by a built-in battery, the system needs to operate in a low power mode in which sleep + gravity changes trigger uploading data. However, the receiving/monitoring terminal does not judge the operation state of the wireless gravity sensor, and even if the wireless gravity sensor is damaged, the receiving/monitoring terminal may not effectively alarm, so that the operation reliability thereof needs to be improved.
RFID (Radio Frequency Identification ) technology is a contactless automatic identification technology that can identify a specific object by radio signals and read and write related data without establishing mechanical or optical contact between an identification system and the specific object, and the RFID system mainly includes: RFID tag, RFID reader-writer. The storage area of the RFID tag mainly includes: TID (Tag Identifier, unique global code of each TID) code and user data, the data format adopts international unified protocol transmission, and the method is widely applied to the fields of logistics management, tickets, cards and the like, and is used for identifying the identity of a target object or a holder: unique TID code, and can achieve the purposes of safety certification, target tracking and statistics.
Chinese patent application No.201410658852.X discloses a semi-active non-contact RFID sensor that can realize data acquisition of temperature, posture and gravitational acceleration. The RFID sensor and other similar non-contact RFID tag technologies mostly use passive ultra-high frequency RFID tags, temperature sensors, and battery semi-active RFID tags as remote wireless sensors. Because such an RFID sensor must be built-in with a battery, the effective service life of the RFID tag is limited by the life of the built-in battery and makes its structure complicated and manufacturing costs increase. Therefore, such RFID sensors are not suitable for application on devices in smart grids.
Disclosure of Invention
The technical problem to be solved by the application is to provide a passive RFID tag for high-precision online monitoring of the running state of the drop-out fuse, and provide a drop-out fuse device with the passive RFID tag and a fuse monitoring system for monitoring the running state of the drop-out fuse device.
To solve the above-described problems, according to an aspect of the present application, there is provided a passive RFID tag including: a first loop including a first RFID chip having two terminals, a first antenna, and a first gravity transfer switch, one terminal of the first RFID chip, the first antenna, the first gravity transfer switch, and the other terminal of the first RFID chip being connected in series; and a second loop including a second RFID chip having two terminals, a second antenna, and a second gravity transfer switch, one terminal of the second RFID chip, the second antenna, the second gravity transfer switch, and the other terminal of the second RFID chip being connected in series, wherein when the orientation of the passive RFID tag is in the first position, the first gravity transfer switch is turned on and the second gravity transfer switch is turned off; when the orientation of the passive RFID tag is in the second position, the first gravity switch is off and the second gravity switch is on.
According to embodiments of the present application, each of the first and second gravity switches may be a passive single stage switch, such as a mercury switch or a ball switch.
According to embodiments of the present application, the passive RFID tag may also include a directional indicator.
According to embodiments of the present application, each of the first RFID chip and the second RFID chip may include the same TID code and different user data.
According to the embodiment of the application, the passive RFID tag comprises a two-dimensional code printed on the surface of the passive RFID tag, and the two-dimensional code can be generated through TID code conversion of an RFID chip.
According to another aspect of the present application, there is provided a passive type RFID tag comprising a first RFID chip having two terminals, a first gravity switch, a second RFID chip having two terminals, a second gravity switch, and an antenna, wherein one terminal of the first RFID chip, the antenna, the first gravity switch, and the other terminal of the first RFID chip are connected in series to form a first loop, wherein one terminal of the second RFID chip, the antenna, the second gravity switch, and the other terminal of the second RFID chip are connected in series to form a second loop, wherein when the orientation of the passive RFID tag is in a first position, the first gravity switch is turned on and the second gravity switch is turned off; when the orientation of the passive RFID tag is in the second position, the first gravity switch is off and the second gravity switch is on.
According to another aspect of the present application, there is provided a drop-out fuse device including: an insulating base for being fixed on a support member of the power system; the first bracket is fixedly connected with the upper end of the insulating base and is used for being electrically connected to an upstream circuit; the second bracket is fixedly connected with the lower end of the insulating base and is used for being electrically connected to a downstream circuit; and a fusion pipe having a lower end pivotably connected and electrically connected to the second bracket and an upper end detachably connected and electrically connected to the first bracket, the fusion pipe further comprising an RFID tag on an outer wall surface thereof, wherein the RFID tag comprises the passive RFID tag as described above.
According to embodiments of the present application, the pivotable connection of the lower end of the fusion pipe to the second bracket may comprise a hinged connection.
According to embodiments of the present application, when each of the first and second RFID chips includes the same TID code and different user data, the different user data may represent two orientations of the passive RFID tag on the fusion pipe: the drop-out fuse device is in an on orientation and an off orientation.
According to embodiments of the present application, a passive RFID tag is affixed to the outside wall of a fusion pipe by an adhesive.
According to yet another aspect of the present application, there is provided a fuse monitoring system, comprising: a high voltage fuse set comprising A, B, C three-phase high voltage fuses, A, B, C three-phase high voltage fuses each comprising a drop-out fuse device as described above; the reader-writer is used for reading data from or writing data into the passive RFID tag on the fusion tube of the A, B, C three-phase high-voltage fuse; a controller for controlling reading or writing of the reader-writer; and the monitoring background is connected with the controller through a wired or wireless network and controls the action of the controller through program control or manual operation.
According to an embodiment of the present application, the controller may comprise a power supply device.
According to embodiments of the present application, the reader and the controller may form a single assembly and be mounted near the A, B, C three-phase high voltage fuse with a distance therebetween within the read-write range of the reader.
According to the embodiment of the application, the reader-writer communicates with the RFID tag through a wireless radio frequency channel and sends out radio frequency signals containing card reading instructions at certain time intervals.
According to an embodiment of the present application, a controller receives and processes data from a reader/writer, the processed data content comprising: the on/off state quantity of the a-phase high-voltage fuse, the on/off state quantity of the B-phase high-voltage fuse, and the on/off state quantity of the C-phase high-voltage fuse, and the processed data is transmitted to the monitoring background.
The passive RFID tag, the drop-out fuse device and the monitoring system thereof according to the embodiment of the application can realize the following beneficial effects.
A passive RFID tag according to an embodiment of the present application includes a first loop having a first RFID chip, a first antenna, and a first gravity switch, and a second loop having a second RFID chip, a second antenna, and a second gravity switch. When the azimuth of the passive RFID tag is at a first position, the first gravity change-over switch is turned on, and the second gravity change-over switch is turned off; when the orientation of the passive RFID tag is in the second position, the first gravity switch is off and the second gravity switch is on. That is, the on and off of the first loop and the second loop of the passive RFID tag depend on the change in its orientation. In the process of changing the passive RFID tag from the first position to the second position, the on and off of the first gravity change-over switch and the second gravity change-over switch are switched by utilizing gravity, and a power supply is not needed for switching, so that the passive RFID tag has the passive property. Because of this, the service life is no longer dependent on the life of the power source, such as a battery. Under the condition that the passive RFID tag is applied to the drop-out fuse and the monitoring system thereof, when the fusion tube is in the closed position, the first gravity transfer switch is conducted, the first RFID chip, the first antenna and the first gravity transfer switch form a closed loop, and user data of the first RFID chip from the first antenna can be detected through the reader-writer, so that the drop-out fuse device is indicated to be in normal operation. At this time, the second gravity transfer switch is turned off, the second RFID chip, the second antenna, and the second gravity transfer switch cannot form a loop, and the reader/writer cannot detect user data of the second RFID chip. In contrast, when the fusion pipe is in the falling position, the first gravity transfer switch is turned off, the first RFID chip, the first antenna and the first gravity transfer switch cannot form a closed loop, and the reader-writer cannot detect user data of the first RFID chip. At this time, the second gravity transfer switch is turned on, the second RFID chip, the second antenna, and the second gravity transfer switch form a loop, and user data from the second RFID chip of the second antenna can be detected by the reader/writer, indicating that the drop-out fuse device is in a drop-out state. The fuse tube of the drop-out fuse device is turned over from the first position to the second position by gravity, and simultaneously, the first gravity change-over switch is switched from on to off by gravity along with the movement of the fuse tube, and the second gravity change-over switch is switched from off to on by gravity along with the movement of the fuse tube. Therefore, the fusing operation (fusion tube flipping) of the drop-out fuse device according to the embodiment of the present application and the signal conversion (on and off of the first loop and the second loop) of the RFID tag thereon all realize passive operation by gravity. Because each of the first RFID chip and the second RFID chip has the same TID code and different user data, the result of detecting the operation state of the drop-out fuse is very accurate, and the operation reliability of the drop-out fuse is greatly improved. Because the RFID tag is passive, the service life of the RFID tag is not influenced by the service life of a battery power supply, and the service life of the RFID tag is greatly prolonged. The RFID tag is small and thus can be easily fixed to the outer wall of the fusion pipe.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following brief description of the drawings of the embodiments will make it apparent that the drawings in the following description relate only to some embodiments of the present application and are not limiting of the present application.
Fig. 1 is a schematic diagram of a passive RFID tag in one orientation according to an embodiment of the present application.
Fig. 2 is a schematic view of the passive RFID tag of fig. 1 in another orientation.
Fig. 3 is a schematic view of a drop-out fuse device in an operational (closed) state according to an embodiment of the present application.
Fig. 4 is a schematic view of a drop-out fuse device in a drop (open) state according to an embodiment of the present application.
Fig. 5 is a block diagram of a drop-out fuse device monitoring system according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present application. It will be apparent that the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without the benefit of the present disclosure, are intended to be within the scope of the present application based on the described embodiments.
Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. The terms "first," "second," and the like in the description and in the claims, are not used for any order, quantity, or importance, but are used for distinguishing between different elements. Likewise, the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one.
Next, embodiments of the present application will be described in detail.
Fig. 1 is a schematic view of a passive RFID tag in one orientation and fig. 2 is a schematic view of the passive RFID tag of fig. 1 in another orientation according to an embodiment of the present application.
As shown in fig. 1, according to one aspect of the present application, a passive RFID tag 100 is provided. The passive RFID tag 100 may include a first loop 110 and a second loop 120. The present application is not limited thereto but the passive RFID tag 100 may also include a third or more loops other than the first loop 110 and the second loop 120 as needed.
The first loop 110 may include, for example, a first RFID chip 111 having two terminals, a first antenna 112, and a first gravity switch 113. The one terminal in1 of the first RFID chip 111, the first antenna 112, the first gravity switch 113, and the other terminal in2 of the first RFID chip 111 are connected in series.
The second loop 120 may include, for example, a second RFID chip 121 having two terminals, a second antenna 122, and a second gravity switch 123. The one terminal in1 of the second RFID chip 121, the second antenna 122, the second gravity change-over switch 123, and the other terminal in1 of the second RFID chip 121 are connected in series.
In the passive RFID tag 100 shown in fig. 1, the first loop 110 is located above the second loop 120. Referring now to fig. 2, the passive RFID tag 100 shown in fig. 2 is in an upside down orientation with respect to the passive RFID tag 100 shown in fig. 1.
When the orientation of the passive RFID tag 100 is in the first position, the first gravity switch 113 is on and the second gravity switch 123 is off. However, when the orientation of the passive RFID tag 100 is in the second position, the first gravity switch 113 is off and the second gravity switch 123 is on. The opposite arrangement is also possible, as known to those skilled in the art, e.g., when the orientation of the passive RFID tag 100 is in the first position, the first gravity switch 113 is off and the second gravity switch 123 is on. However, when the orientation of the passive RFID tag 100 is in the second position, the first gravity switch 113 is on and the second gravity switch 123 is off. In addition, the first and second positions described above are defined only for convenience of illustration and description in the drawings, but both the first and second positions may be inclined at an angle, for example, 30 degrees to 45 degrees, with respect to the orientation shown in the drawings.
According to embodiments of the present application, each of the first gravity transfer switch 113 and the second gravity transfer switch 123 may be a passive single-stage switch. That is, each of the first gravity changing switch 113 and the second gravity changing switch 123 may be powered by gravity, and turned on or off by gravity according to a change in its own orientation. When the first gravity change-over switch 113 is turned on, the second gravity change-over switch 123 is turned off. Conversely, when the first gravity change-over switch 113 is turned off, the second gravity change-over switch 123 is turned on. Thus, the first gravity switch 113 and the second gravity switch 123 form a gravity direction interlock. For example, the first gravity switch 113 and the second gravity switch 123 may be mercury switches or ball switches, and may be disposed upside down from each other.
According to embodiments of the present application, the passive RFID tag 100 may also include a directional indicator 130. The direction indicator 130 is used primarily as a positioning reference during manufacturing and as a mounting mark during mounting.
According to embodiments of the present application, each of the first RFID chip 111 and the second RFID chip 121 may include the same TID code and different user data. The present application is not limited thereto but each of the first RFID chip 111 and the second RFID chip 121 may also include a different TID code and different user data. However, when each of the first and second RFID chips 111 and 121 includes the same TID code and different user data, the identification system thereof can be greatly simplified.
According to embodiments of the present application, the passive RFID tag 100 may include a two-dimensional code 140 (see fig. 5) printed on a surface thereof. The two-dimensional code 140 may be generated by TID code conversion of the RFID chip. Because each of the first RFID chip 111 and the second RFID chip 121 includes the same TID code, the passive RFID tag 100 has a unique two-dimensional code.
According to another aspect of the present application, there is provided a passive type RFID tag 100 including a first RFID chip 111 having two terminals, a first gravity switch 113, a second RFID chip 121 having two terminals, a second gravity switch 123, and an antenna, wherein one terminal of the first RFID chip 111, the antenna, the first gravity switch 113, and the other terminal of the first RFID chip 111 are connected in series to form a first loop 110, wherein one terminal of the second RFID chip 121, the antenna, the second gravity switch 123, and the other terminal of the second RFID chip 121 are connected in series to form a second loop 120, wherein when the orientation of the passive RFID tag is in a first position, the first gravity switch is turned on and the second gravity switch is turned off; when the orientation of the passive RFID tag is in the second position, the first gravity switch is off and the second gravity switch is on. The passive RFID tag 100 described herein differs from the passive RFID tag 100 described herein in that the first loop 110 and the second loop 120 of the passive RFID tag 100 described herein share one antenna, while the first loop 110 and the second loop 120 of the passive RFID tag 100 described herein include a first antenna 112 and a second antenna 122, respectively. In the case where the first loop 110 and the second loop 120 share one antenna, the number of elements may be reduced, but the complexity on the circuit connection is increased accordingly. Those skilled in the art can make the selection according to actual needs.
Fig. 3 is a schematic view of a drop-out fuse device according to an embodiment of the present application in an operational (closed) state, and fig. 4 is a schematic view of a drop-out fuse device according to an embodiment of the present application in a dropped (open) state.
According to another aspect of the present application, a drop-out fuse device 200 is provided. The drop-out fuse device 200 includes an insulating base 210, a first bracket 220, a second bracket 230, and a fusion pipe 240.
The insulating base 210 may be used to be secured to a support member of a power system. For example, the insulating base 210 may be an insulator.
The first bracket 220 is fixedly coupled to the upper end of the insulating base 210 and is for electrical connection to upstream circuitry. That is, the first holder 220 is fixedly connected to the insulating base 210, and the electrode portion thereon may be electrically connected to an upstream circuit.
The second bracket 230 is fixedly connected to the lower end of the insulating base 210 and is used for electrical connection to downstream circuits. That is, the second holder 230 is fixedly connected to the insulating base 210, and the electrode portion thereon may be electrically connected to a downstream circuit.
The lower end of the fusion pipe 240 is pivotably and electrically connected to the second bracket 230, and the upper end thereof is detachably and electrically connected to the first bracket 220. The fusion pipe 240 further includes an RFID tag on an outer wall surface thereof, and the RFID tag includes the passive RFID tag 100 as described above.
The pivotable connection of the lower end of the fusion pipe 240 to the second bracket 230 may include a hinged connection, according to embodiments of the present application. The present application is not limited thereto but the lower end of the fusion pipe 240 and the second bracket 230 may be any pivotable connection, such as a flexible connection, an elastic connection, etc. The upper end of the fusion pipe 240 is detachably and electrically connected to the first bracket 220 by a conventional drop-out fuse.
When each of the first RFID chip 111 and the second RFID chip 121 includes the same TID code and has different user data, the different user data may represent two orientations of the passive RFID tag 100 on the fusion pipe 240, according to embodiments of the present application: the drop-out fuse device 200 has an on orientation and an off orientation.
According to an embodiment of the present application, the passive RFID tag 100 is attached to the outer sidewall of the fusion pipe 240 by an adhesive. As shown in fig. 3 and 4, fig. 3 shows the position of the drop-out fuse device 200 in an operational state, that is, the first position of the passive RFID tag 100; fig. 4 shows the drop-out fuse device 200 in a drop-out condition, i.e., a second position of the passive RFID tag 100. The passive RFID tag 100 is seen to be at an angle to the vertical in a first position and in a second position, i.e. rotated at an angle with respect to the second bracket 230 from the first position to the second position. The second position of the passive RFID tag 100 shown in fig. 4 is not limited to the vertical direction, but may also have a certain angle with respect to the vertical direction, for example, a certain stopper member may be set thereto at a predetermined second position.
Further, the term "drop out" in the context of the present application is a common term in the art and refers to the tilting action of the fusion pipe 240 relative to the second bracket 230, rather than dropping downward under the force of gravity.
Fig. 5 is a block diagram of a drop-out fuse device monitoring system according to an embodiment of the present application.
As shown in fig. 5, according to yet another aspect of the present application, a fuse monitoring system is provided. The fuse monitoring system includes a high voltage fuse set 300, a reader 400, a controller 500, and a monitoring backend 600.
The high voltage fuse set 300 includes A, B, C three-phase high voltage fuses, each of which A, B, C three-phase high voltage fuses may include the drop-out fuse device 200 as described above.
The reader/writer 400 is used to read data from or write data to the passive RFID tag 100 on the fuse tube 240 of the A, B, C three-phase high voltage fuse.
The controller 500 is used to control reading or writing of the reader/writer 400.
The monitoring background 600 is connected to the controller 500 through a wired or wireless network, and controls the actions of the controller 500 through program control or manual operation.
According to embodiments of the present application, the controller 500 may include a power supply device, and the power supply device may be an ac or dc power supply from the power grid, and may also be a photovoltaic cell or a rechargeable or dry cell.
As shown in fig. 3 and 4, according to an embodiment of the present application, the reader/writer 400 and the controller 500 may be formed as a single assembly and installed near the A, B, C three-phase high-voltage fuse, with a distance therebetween within a read/write range of the reader/writer 400. The drop-out fuse device 200, the reader/writer 400, and the controller 500 shown in fig. 3 and 4 are all fixed to one utility pole. The present application is not limited thereto but the drop-out fuse device 200, the reader/writer 400, and the controller 500 may be fixed to any support member of the power system as known to those skilled in the art.
According to an embodiment of the present application, the reader/writer 400 communicates with the RFID tag through a wireless radio frequency channel, and transmits a radio frequency signal containing a card reading instruction at certain time intervals.
According to an embodiment of the present application, the controller 500 receives and processes data from the reader/writer 400, the processed data content including: the on/off state quantity of the a-phase high voltage fuse, the on/off state quantity of the B-phase high voltage fuse, and the on/off state quantity of the C-phase high voltage fuse, and the processed data is transmitted to the monitoring background 600.
The passive RFID tag, the drop-out fuse device and the monitoring system thereof according to the embodiment of the application can realize the following beneficial effects.
A passive RFID tag according to an embodiment of the present application includes a first loop having a first RFID chip, a first antenna, and a first gravity switch, and a second loop having a second RFID chip, a second antenna, and a second gravity switch. When the azimuth of the passive RFID tag is at a first position, the first gravity change-over switch is turned on, and the second gravity change-over switch is turned off; when the orientation of the passive RFID tag is in the second position, the first gravity switch is off and the second gravity switch is on. That is, the on and off of the first loop and the second loop of the passive RFID tag depend on the change in its orientation. In the process of changing the passive RFID tag from the first position to the second position, the on and off of the first gravity change-over switch and the second gravity change-over switch are switched by utilizing gravity, and a power supply is not needed for switching, so that the passive RFID tag has the passive property. Because of this, the service life is no longer dependent on the life of the power source, such as a battery. Under the condition that the passive RFID tag is applied to the drop-out fuse and the monitoring system thereof, when the fusion tube is in the closed position, the first gravity transfer switch is conducted, the first RFID chip, the first antenna and the first gravity transfer switch form a closed loop, and user data of the first RFID chip from the first antenna can be detected through the reader-writer, so that the drop-out fuse device is indicated to be in normal operation. At this time, the second gravity transfer switch is turned off, the second RFID chip, the second antenna, and the second gravity transfer switch cannot form a loop, and the reader/writer cannot detect user data of the second RFID chip. In contrast, when the fusion pipe is in the falling position, the first gravity transfer switch is turned off, the first RFID chip, the first antenna and the first gravity transfer switch cannot form a closed loop, and the reader-writer cannot detect user data of the first RFID chip. At this time, the second gravity transfer switch is turned on, the second RFID chip, the second antenna, and the second gravity transfer switch form a loop, and user data from the second RFID chip of the second antenna can be detected by the reader/writer, indicating that the drop-out fuse device is in a drop-out state. The fuse tube of the drop-out fuse device is turned over from the first position to the second position by gravity, and simultaneously, the first gravity change-over switch is switched from on to off by gravity along with the movement of the fuse tube, and the second gravity change-over switch is switched from off to on by gravity along with the movement of the fuse tube. Therefore, the fusing operation (fusion tube flipping) of the drop-out fuse device according to the embodiment of the present application and the signal conversion (on and off of the first loop and the second loop) of the RFID tag thereon all realize passive operation by gravity. Because each of the first RFID chip and the second RFID chip has unique TID codes and user data, the result of detecting the operation state of the drop-out fuse is very accurate, and the operation reliability of the drop-out fuse is greatly improved. Because the RFID tag is passive, the service life of the RFID tag is not influenced by the service life of a battery power supply, and the service life of the RFID tag is greatly prolonged. The RFID tag is small and thus can be easily fixed to the outer wall of the fusion pipe.
The foregoing is merely exemplary embodiments of the present application and is not intended to limit the scope of the present application, which is defined by the appended claims.
Claims (16)
1. A passive radio frequency identification tag comprising:
a first loop including a first radio frequency identification chip having two terminals, a first antenna, and a first gravity transfer switch, one terminal of the first radio frequency identification chip, the first antenna, the first gravity transfer switch, and another terminal of the first radio frequency identification chip being connected in series; and
a second loop including a second radio frequency identification chip having two terminals, a second antenna, and a second gravity transfer switch, one terminal of the second radio frequency identification chip, the second antenna, the second gravity transfer switch, and the other terminal of the second radio frequency identification chip being connected in series,
when the orientation of the passive radio frequency identification tag is at a first position, the first gravity change-over switch is turned on and the second gravity change-over switch is turned off; when the orientation of the passive radio frequency identification tag is in a second position, the first gravity transfer switch is turned off and the second gravity transfer switch is turned on.
2. The passive radio frequency identification tag of claim 1, wherein each of the first gravity transfer switch and the second gravity transfer switch is a passive single stage switch.
3. The passive radio frequency identification tag of claim 2, wherein the passive single stage switch comprises a mercury switch or a ball switch.
4. The passive radio frequency identification tag of claim 1, wherein the radio frequency identification tag further comprises a direction indicator.
5. The passive radio frequency identification tag of claim 1, wherein each of the first radio frequency identification chip and the second radio frequency identification chip comprises the same tag identification number code and different user data.
6. The passive rfid tag of claim 5, further comprising a two-dimensional code printed on a surface thereof, the two-dimensional code generated by tag identification number transcoding of the rfid chip.
7. A passive type radio frequency identification tag comprising a first radio frequency identification chip having two terminals, a first gravity transfer switch, a second radio frequency identification chip having two terminals, a second gravity transfer switch, and an antenna, wherein one terminal of the first radio frequency identification chip, the antenna, the first gravity transfer switch, and the other terminal of the first radio frequency identification chip are connected in series to form a first loop, wherein one terminal of the second radio frequency identification chip, the antenna, the second gravity transfer switch, and the other terminal of the second radio frequency identification chip are connected in series to form a second loop, wherein when an orientation of the passive type radio frequency identification tag is in a first position, the first gravity transfer switch is turned on and the second gravity transfer switch is turned off; when the orientation of the passive radio frequency identification tag is in a second position, the first gravity transfer switch is turned off and the second gravity transfer switch is turned on.
8. A drop-out fuse device, comprising:
an insulating base for being fixed on a support member of the power system;
the first bracket is fixedly connected with the upper end of the insulating base and is used for being electrically connected to an upstream circuit;
the second bracket is fixedly connected with the lower end of the insulating base and is used for being electrically connected to a downstream circuit; and
a fusion pipe having a lower end pivotally and electrically connected to the second bracket and an upper end detachably and electrically connected to the first bracket, the fusion pipe further comprising a radio frequency identification tag on an outer wall surface thereof,
wherein the radio frequency identification tag comprises a passive radio frequency identification tag as claimed in any one of claims 1 to 7.
9. The drop-out fuse device of claim 8, wherein the pivotable connection of the lower end of the fusion tube to the second bracket comprises a hinged connection.
10. The drop-out fuse device of claim 8, wherein when each of the first and second radio frequency identification chips includes the same tag identification number code and different user data, the different user data represents two orientations of the radio frequency identification tag on the fusion pipe: the drop-out fuse device has an on orientation and an off orientation.
11. The drop-out fuse device of claim 8, wherein the passive radio frequency identification tag is affixed to the outside wall of the fusion tube by an adhesive.
12. A fuse monitoring system comprising:
a high voltage fuse set comprising A, B, C three-phase high voltage fuses, each of said A, B, C three-phase high voltage fuses comprising a drop-out fuse device as claimed in any one of claims 8 to 10;
the reader-writer is used for reading data from or writing data into the radio frequency identification tag on the fusion tube of the A, B, C three-phase high-voltage fuse;
a controller for controlling reading or writing of the reader-writer; and
the monitoring background is connected with the controller through a wired or wireless network and controls the action of the controller through program control or manual operation.
13. The fuse monitoring system of claim 12, wherein the controller comprises a power supply device.
14. The fuse monitoring system of claim 12, wherein the reader and the controller form a single assembly and are mounted adjacent to the A, B, C three-phase high voltage fuse with a distance therebetween within a read-write range of the reader.
15. The fuse monitoring system of claim 12, wherein the reader communicates with the radio frequency identification tag via a wireless radio frequency channel and issues radio frequency signals containing card reading instructions at intervals.
16. The fuse monitoring system of claim 12, wherein the controller receives and processes data from the reader/writer, the processed data content comprising: the on/off state quantity of the A-phase high-voltage fuse, the on/off state quantity of the B-phase high-voltage fuse and the on/off state quantity of the C-phase high-voltage fuse, and transmitting the processed data to the monitoring background.
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| CN201810319919.5A CN108320014B (en) | 2018-04-11 | 2018-04-11 | Passive radio frequency identification tag, drop-out fuse device and monitoring system thereof |
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| CN201810319919.5A CN108320014B (en) | 2018-04-11 | 2018-04-11 | Passive radio frequency identification tag, drop-out fuse device and monitoring system thereof |
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| CN108320014B true CN108320014B (en) | 2024-01-05 |
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| CN111353318A (en) * | 2018-12-20 | 2020-06-30 | 夏敬懿 | Detection method for identifying different verification states by radio frequency identification, locking device and equipment |
| CN112085138A (en) * | 2020-03-02 | 2020-12-15 | 合肥工业大学 | Micro device, system and method for tracing source, anti-counterfeiting and anti-tampering |
| CN114113999A (en) * | 2021-11-19 | 2022-03-01 | 贵州电网有限责任公司 | State detection system applied to high-voltage drop-out fuse |
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| CN108320014A (en) | 2018-07-24 |
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