CN110836995A - Multifunctional current narrowband NB-loT Internet of things detection service system - Google Patents
Multifunctional current narrowband NB-loT Internet of things detection service system Download PDFInfo
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- CN110836995A CN110836995A CN201911100347.2A CN201911100347A CN110836995A CN 110836995 A CN110836995 A CN 110836995A CN 201911100347 A CN201911100347 A CN 201911100347A CN 110836995 A CN110836995 A CN 110836995A
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- 239000004677 Nylon Substances 0.000 claims abstract description 10
- 229920001778 nylon Polymers 0.000 claims abstract description 10
- 238000005259 measurement Methods 0.000 claims description 9
- 238000012545 processing Methods 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 7
- 210000000080 chela (arthropods) Anatomy 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/0092—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring current only
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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Abstract
The invention relates to a multifunctional current narrowband NB-loT Internet of things detection service system, which comprises a current acquisition device, a current narrowband NB-loT information acquisition terminal and a current narrowband NB-loT mobile Internet of things detection service system, wherein the current narrowband NB-loT information acquisition terminal is connected with the mobile Internet of things detection service system through a network; a left connecting sleeve and a right connecting sleeve are respectively and fixedly connected to two clamp handles of the clamp-shaped current sensor, a grooved wheel is arranged in the right connecting sleeve, one end of an operating nylon wire is fixedly connected with the left connecting sleeve, the other end of the operating nylon wire bypasses the grooved wheel, and an insulating rod is spliced with the left connecting sleeve; the current narrow band NB-loT information acquisition terminal is fixedly connected to the insulating rod; the current output line is connected with the current narrowband NB-loT information acquisition terminal, and the current narrowband NB-loT information acquisition terminal is communicated with the current narrowband NB-loT mobile Internet of things detection service system. The advantages are that: the invention is convenient for detecting or monitoring the current of the busbar and the conducting wire; the current detection can be carried out on the busbar and the conducting wire in different spaces.
Description
Technical Field
The invention belongs to the field of transformer substation current measurement, and particularly relates to a multifunctional current narrowband NB-loT Internet of things detection service system.
Background
Nowadays, the power industry is an important industry related to the national civilization and plays an extremely important role in national economy. In a power grid system, a box-type substation is configured more and widely distributed, and is mainly responsible for switching on and off of power lines, transmission and switching of power loads, quitting operation of fault lines and equipment and the like. The state and technical parameters of the box-type substation are the embodiment of operation quality and safety, and for example, the current of a busbar of the box-type substation is one of important technical parameters.
At present, the current of the busbar of the box-type transformer substation is manually operated by a clamp-on ammeter, the detection tool is single, and the current needs to be read and manually recorded. Sometimes, power failure measurement is needed, which reduces the reliability of power supply and increases power failure loss. When measuring the electric quantity of different electric devices, different devices need to be used, and the complexity of operation is increased. Furthermore, existing devices may not be able to perform measurements, subject to the conditions of installation of the field electrical equipment. The existing measuring method basically belongs to the category of simulation technology.
At present, the information technology is rapidly developed, and a seamless telecontrol communication system structure is established on the basis of the IEC 61850 standard, so that the transformer substation is transformed to a digital transformer substation.
The digital substation requires emphasis:
1) and (4) digitalizing data acquisition. The transmission is convenient, the precision is high, the anti-interference ability is strong, and the device also has the characteristics of high insulation, high voltage resistance, short circuit and open circuit resistance and the like;
2) the interaction of information is networked. The system has various network platforms, and particularly, the current detection, monitoring and service platform of the transformer substation is realized by fully utilizing the mobile Internet of things resources.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a multifunctional current narrow-band NB-loT Internet of things detection service system, which adopts a pincerlike current detection sensor to realize the current detection or monitoring of various busbars and wires and realize local display or remote data transmission.
In order to achieve the purpose, the invention is realized by the following technical scheme:
a multifunctional current narrowband NB-loT Internet of things detection service system comprises a current acquisition device, a current narrowband NB-loT information acquisition terminal and a current narrowband NB-loT mobile Internet of things detection service system;
the current collecting device comprises a pincer-shaped current sensor, an insulating rod, a left connecting sleeve, a right connecting sleeve, a grooved wheel and an operating nylon wire, wherein the left connecting sleeve and the right connecting sleeve are fixedly connected to two pincer handles of the pincer-shaped current sensor respectively; the jaw of the pincerlike current sensor is circular or rectangular;
the current narrow band NB-loT information acquisition terminal is fixedly connected to the insulating rod; the current output line of the clamp-on current sensor is connected with the current narrowband NB-loT information acquisition terminal, and the current narrowband NB-loT information acquisition terminal is communicated with the current narrowband NB-loT mobile Internet of things detection service system.
The current narrow-band NB-loT information acquisition terminal comprises a current measurement unit, an LCD touch screen, an MCU control unit, an NB-loT narrow-band Internet of things module and an NB-SIM card, wherein the MCU control unit is connected with the current measurement unit, the LCD touch screen and the NB-loT narrow-band Internet of things module; the current measuring unit comprises a current measuring chip and a current measuring controller which are connected with each other;
the current measuring unit is used for receiving the current and electric quantity information output by the pincerlike current sensor, processing and metering, and sending electric quantity data obtained by metering to the MCU control unit; the current metering chip is used for metering the current electric quantity output by the pincerlike current sensor, sending the electric quantity data obtained by metering to the current metering controller, and sending the electric quantity data to the MCU control unit by the current metering controller;
the MCU control unit is used for processing the electric quantity data information sent by the current measuring unit, wirelessly transmitting the electric quantity data information to the current narrowband NB-loT mobile Internet of things detection service system through the NB-loT narrowband Internet of things module, and simultaneously transmitting the electric quantity data information to the NB-SIM card through the NB-loT narrowband Internet of things module.
The current narrowband NB-loT mobile Internet of things detection service system comprises a mobile loT communication platform, a decoding APP and a current NB-loT mobile Internet of things detection service background, wherein the mobile loT communication platform receives data information transmitted by a current narrowband NB-loT information acquisition terminal, and the data information is decoded by the decoding APP and stored in the current NB-loT mobile Internet of things detection service background.
The left connecting sleeve and the right connecting sleeve are respectively and fixedly connected with the two clamp handles of the clamp-shaped current sensor through locking screws.
The top end of the insulating rod is fixed with the conical plug through a connecting ring.
An elbow is fixed between the top end of the insulating rod and the conical plug.
Compared with the prior art, the invention has the beneficial effects that:
1) the invention provides a pincer-shaped current detection sensor with rectangular or circular jaws for a transformer substation and a corresponding matching device, which can be used for conveniently detecting or monitoring the current of a busbar and a lead; the current detection can be carried out on the busbar and the conducting wires in different spaces: the insulating rod is matched with the nylon wire to conveniently detect the bus bar and the lead with a certain height, and the elbow is adopted to conveniently detect the current of the bus bar and the lead arranged in a lateral and narrow space place;
2) the invention provides a current digital data acquisition system which can display on site or transmit data remotely; an LCD touch screen is arranged on the current narrow band NB-loT information acquisition terminal, field display operation is facilitated, data are transmitted to a remote service background through the narrow band, and manual transmission is not needed.
3) The invention provides a embedded microcomputer processing system and also provides a current narrowband NB-loT Internet of things detection service system, thereby creating powerful conditions for a digital substation.
Drawings
FIG. 1 is a schematic diagram of a clamp-type current sensor with circular jaws and a mounting and operating structure of the current sensor on an insulating rod.
Fig. 2 is a schematic diagram of a lateral steering configuration when measuring current on a round wire.
Fig. 3 is a schematic diagram of a clamp-shaped current sensor with rectangular jaws and a mounting and operating structure of the clamp-shaped current sensor on an insulating rod.
FIG. 4 is a schematic diagram of a lateral steering configuration when measuring a rectangular wire current.
Fig. 5 is a schematic view of the installation of the current narrow band NB-loT information acquisition terminal on the insulating rod.
Fig. 6 is a schematic diagram of a multifunctional current narrowband NB-loT internet of things detection service system.
Fig. 7 is a schematic diagram of a current measuring unit.
In the figure: 101-insulating rod 102-connecting ring 103-conical plug 104-left connecting sleeve 105-left locking screw 106-left clamp handle 107-rotating shaft 108-left clamp jaw (circular) 109-right clamp jaw (circular) 110-right clamp handle 111-right locking screw 112-right connecting sleeve 113-grooved pulley 114-operating nylon wire 115-current output wire 116-elbow 117-trip 118-current narrow band NB-loT information acquisition terminal 208-left clamp jaw (rectangular) 209-right clamp jaw (rectangular) 300-conducting wire 400-bus bar.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings, but it should be noted that the present invention is not limited to the following embodiments.
Referring to fig. 1-7, a multifunctional current narrowband NB-loT internet of things detection service system includes a current collection device, a current narrowband NB-loT information collection terminal 118, and a current narrowband NB-loT mobile internet of things detection service system; the current collecting device comprises a pincer-shaped current sensor, an insulating rod 101, a left connecting sleeve 104, a right connecting sleeve 112, a grooved pulley 113 and an operating nylon wire 114, wherein the two pincer handles of the pincer-shaped current sensor are fixedly connected with the left connecting sleeve 104 and the right connecting sleeve 112 respectively, the grooved pulley 113 is arranged in the right connecting sleeve 112, one end of the operating nylon wire 114 is fixedly connected with the left connecting sleeve 104, the other end of the operating nylon wire bypasses the grooved pulley 113, a conical plug 103 is fixed at the top end of the insulating rod 101, and the insulating rod 101 is inserted into the left connecting sleeve 104 through the conical plug 103; the clamp jaw of the clamp-shaped current sensor is circular or rectangular, the left clamp jaw (108 or 208) and the right clamp handle 110 are integrated, the right clamp jaw (109 or 209) and the left clamp handle 106 are integrated, the left clamp handle 110 and the right clamp handle 110 are hinged through a rotating shaft 107, and the left clamp jaw 108 and the right clamp jaw 109 are provided with insulating layers, which are shown in fig. 1-4.
Referring to fig. 5, the current narrow band NB-loT information acquisition terminal 118 is fixedly connected to the insulating rod 101 through the tripper 117; the current output line 115 of the clamp-on current sensor is connected with the current narrowband NB-loT information acquisition terminal 118, and the current narrowband NB-loT information acquisition terminal 118 is communicated with the current narrowband NB-loT mobile Internet of things detection service system.
Referring to fig. 6 and 7, the current narrowband NB-loT information acquisition terminal 118 includes a current measurement unit, an LCD touch screen, an MCU control unit, an NB-loT narrowband internet of things module, and an NB-SIM card, and the MCU control unit is connected to the current measurement unit, the LCD touch screen, and the NB-loT narrowband internet of things module; the current measuring unit comprises a current measuring chip and a current measuring controller which are connected with each other; the current measuring unit is used for receiving the current and electric quantity information output by the pincerlike current sensor, processing and metering, and sending electric quantity data obtained by metering to the MCU control unit; the current metering chip is used for metering the current electric quantity output by the clamp-on current sensor, sending the electric quantity data obtained by metering to the current metering controller, and sending the electric quantity data to the MCU control unit by the current metering controller. The current metering chip can be an ATT7026 chip.
The MCU control unit is used for processing the electric quantity data information sent by the current measuring unit, wirelessly transmitting the electric quantity data information to the current narrowband NB-loT mobile Internet of things detection service system through the NB-loT narrowband Internet of things module, and simultaneously transmitting the electric quantity data information to the NB-SIM card through the NB-loT narrowband Internet of things module. The MCU control unit is provided with a USB interface for data input and output, and the address setting can be carried out through the MCU control unit.
Current narrowband NB-loT mobile Internet of things detection service system includes removal loT communication platform, decoding APP, current NB-loT mobile Internet of things detection service backstage, and removal loT communication platform receives the data message that is transmitted by current narrowband NB-loT information acquisition terminal 118, and the decoding APP that decodes is saved to current NB-loT mobile Internet of things detection service backstage.
The left connecting sleeve 104 and the right connecting sleeve 112 are fixedly connected with two clamp handles of the clamp-shaped current sensor through locking screws 105 and 111 respectively, so that the connecting sleeves are convenient to disassemble. The top end of the insulating rod 101 is fixed with the conical plug 103 through a connecting ring 102. An elbow 116 (made of insulating material) is fixed between the top end of the insulating rod 101 and the conical plug 103 so as to facilitate the detection of the lateral busbar 400 or the electric wire.
The invention has the advantages that:
1) the invention provides a pincerlike current detection sensor with rectangular or circular jaws for a transformer substation and a corresponding matching device, which can be used for conveniently detecting or monitoring the current of a busbar 400 and a lead 300; the current detection can be performed on the busbar 400 and the lead 300 in different spaces: the insulating rod 101 is used for operating the nylon wire 114 to conveniently detect the busbar 400 and the lead 300 with certain heights, and the elbow 116 is used for conveniently detecting the current when the busbar 400 and the lead 300 are arranged in a lateral and narrow space;
2) the invention provides a current digital data acquisition system which can display on site or transmit data remotely; an LCD touch screen is arranged on the current narrow band NB-loT information acquisition terminal 118, field display operation is facilitated, data are transmitted to a remote service background through the narrow band, and manual transmission is not needed.
3) The invention provides a embedded microcomputer processing system and also provides a current narrowband NB-loT Internet of things detection service system, thereby creating powerful conditions for a digital substation.
Claims (6)
1. A multifunctional current narrowband NB-loT Internet of things detection service system is characterized by comprising a current acquisition device, a current narrowband NB-loT information acquisition terminal and a current narrowband NB-loT mobile Internet of things detection service system;
the current collecting device comprises a pincer-shaped current sensor, an insulating rod, a left connecting sleeve, a right connecting sleeve, a grooved wheel and an operating nylon wire, wherein the left connecting sleeve and the right connecting sleeve are fixedly connected to two pincer handles of the pincer-shaped current sensor respectively; the jaw of the pincerlike current sensor is circular or rectangular;
the current narrow band NB-loT information acquisition terminal is fixedly connected to the insulating rod; the current output line of the clamp-on current sensor is connected with the current narrowband NB-loT information acquisition terminal, and the current narrowband NB-loT information acquisition terminal is communicated with the current narrowband NB-loT mobile Internet of things detection service system.
2. The multifunctional current narrowband NB-loT Internet of things detection service system of claim 1, wherein the current narrowband NB-loT information acquisition terminal comprises a current measurement unit, an LCD touch screen, an MCU control unit, an NB-loT narrowband Internet of things module and an NB-SIM card, wherein the MCU control unit is connected with the current measurement unit, the LCD touch screen and the NB-loT narrowband Internet of things module; the current measuring unit comprises a current measuring chip and a current measuring controller which are connected with each other;
the current measuring unit is used for receiving the current and electric quantity information output by the pincerlike current sensor, processing and metering, and sending electric quantity data obtained by metering to the MCU control unit; the current metering chip is used for metering the current electric quantity output by the pincerlike current sensor, sending the electric quantity data obtained by metering to the current metering controller, and sending the electric quantity data to the MCU control unit by the current metering controller;
the MCU control unit is used for processing the electric quantity data information sent by the current measuring unit, wirelessly transmitting the electric quantity data information to the current narrowband NB-loT mobile Internet of things detection service system through the NB-loT narrowband Internet of things module, and simultaneously transmitting the electric quantity data information to the NB-SIM card through the NB-loT narrowband Internet of things module.
3. The multifunctional current narrowband NB-loT Internet of things detection service system of claim 1, wherein the current narrowband NB-loT mobile Internet of things detection service system comprises a mobile loT communication platform, a decoding APP and a current NB-loT mobile Internet of things detection service background, the mobile loT communication platform receives data information transmitted by the current narrowband NB-loT information acquisition terminal, and the data information is decoded and stored in the current NB-loT mobile Internet of things detection service background through the decoding APP.
4. The multifunctional current narrow band NB-loT IOT detection service system of claim 1, wherein the left adapter sleeve and the right adapter sleeve are respectively fixedly connected with two clamp handles of the clamp-shaped current sensor through locking screws.
5. The multifunctional current narrow-band NB-loT IOT detection service system according to claim 1, wherein the top end of the insulating rod and the conical plug are fixed by a connecting ring.
6. The multifunctional current narrowband NB-loT Internet of things detection service system of claim 1, wherein an elbow is fixed between the top end of the insulating rod and the conical plug.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911100347.2A CN110836995A (en) | 2019-11-12 | 2019-11-12 | Multifunctional current narrowband NB-loT Internet of things detection service system |
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| CN201911100347.2A CN110836995A (en) | 2019-11-12 | 2019-11-12 | Multifunctional current narrowband NB-loT Internet of things detection service system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111579852A (en) * | 2020-07-02 | 2020-08-25 | 南方电网数字电网研究院有限公司 | Current collecting device, mounting method and dismounting method |
| CN117394057A (en) * | 2023-10-30 | 2024-01-12 | 南通晓星变压器有限公司 | Direct-current resistance measuring device of ultrahigh-voltage transformer |
-
2019
- 2019-11-12 CN CN201911100347.2A patent/CN110836995A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111579852A (en) * | 2020-07-02 | 2020-08-25 | 南方电网数字电网研究院有限公司 | Current collecting device, mounting method and dismounting method |
| CN111579852B (en) * | 2020-07-02 | 2021-07-06 | 南方电网数字电网研究院有限公司 | Current collecting device, mounting method and dismounting method |
| CN117394057A (en) * | 2023-10-30 | 2024-01-12 | 南通晓星变压器有限公司 | Direct-current resistance measuring device of ultrahigh-voltage transformer |
| CN117394057B (en) * | 2023-10-30 | 2024-05-03 | 南通晓星变压器有限公司 | Direct-current resistance measuring device of ultrahigh-voltage transformer |
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