CN112332076B - NB-IOT intelligent gas meter antenna - Google Patents
NB-IOT intelligent gas meter antenna Download PDFInfo
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- CN112332076B CN112332076B CN202011215407.8A CN202011215407A CN112332076B CN 112332076 B CN112332076 B CN 112332076B CN 202011215407 A CN202011215407 A CN 202011215407A CN 112332076 B CN112332076 B CN 112332076B
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- 230000005540 biological transmission Effects 0.000 claims abstract description 19
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- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 239000002184 metal Substances 0.000 abstract description 4
- 238000009434 installation Methods 0.000 description 5
- 230000002265 prevention Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/225—Supports; Mounting means by structural association with other equipment or articles used in level-measurement devices, e.g. for level gauge measurement
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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Abstract
The invention relates to an NB-IOT intelligent gas meter antenna which is characterized by comprising an antenna body part and an antenna fixing part connected to the side surface of the antenna body part, wherein an included angle alpha is formed between the plane of the antenna body part and the plane of the antenna fixing part, and the included angle alpha is formed by the following steps: the antenna fixing part is fixedly connected with the gas meter shell through a connecting piece, so that the antenna body part is fixed on the inner wall of the gas meter shell; the antenna body part is connected with a mainboard of the NB-IOT intelligent gas meter through a high-frequency transmission cable, a high-frequency signal given by the mainboard is transmitted to the antenna body part through the high-frequency transmission cable, and the antenna body part radiates outwards. The antenna scheme provided by the invention utilizes a screw locking mode, the antenna GND is connected with the metal body of the shell as the reference GND of the antenna while the antenna is fixed, the antenna performance is improved, the area of the antenna is greatly reduced, and the antenna is convenient to assemble.
Description
Technical Field
The invention relates to an antenna applied to an NB-IoT intelligent gas meter, and belongs to the technical field of gas meters.
Background
NB-IoT intelligent gas meter is based on communication operator's thing networking private network, comprises base table, intelligent control unit and the wireless teletransmission unit of taking NB-IoT communication module. Based on an NB-IoT network provided by an operator, the intelligent gas meter transmits related information such as data collected by metering, running states of meters and the like to a background at regular time, and a background data center completes interactive activities such as charging, settlement and issuing of meter instructions and the like through data and information analysis, so that functions of intelligent metering, meter monitoring, abnormal alarming, integration of multimedia channels, remote recharging and payment, service consultation and the like are realized.
Compared with the traditional gas meter, the NB-IoT intelligent gas meter has the following advantages: 1) Remote meter reading: data transmission and data analysis are realized; 2) And (3) real-time charging: carrying out step gas price and remote price adjustment; 3) Alarming and reminding: alarming for surplus and insufficient electric quantity, and alarming for disassembly prevention, leakage prevention and overcurrent; 4) A remote control valve: the two-stage valve authority control, the valve abnormity alarm and the alarm linkage valve closing alarm are carried out; 5) Real-time interaction: and the service lines such as remote payment, bill inquiry and the like are handled by combining a new media channel.
Considering that the installation environments of the gas meters are different, one communication antenna with excellent performance is very small, and meanwhile, considering the coverage of the gas meters, the antenna needs to be subjected to cost control, is convenient to assemble, can adapt to various scenes, and is a great challenge for the antenna.
Disclosure of Invention
The invention aims to: an antenna special for an NB-IOT intelligent gas meter is provided.
In order to achieve the above object, the technical solution of the present invention is to provide an NB-IOT intelligent gas meter antenna, which is characterized in that the antenna is made of a metal sheet with a thickness at least up to 5mm, and includes an antenna body and an antenna fixing part connected to a side surface of the antenna body, and an included angle α is formed between a plane where the antenna body is located and a plane where the antenna fixing part is located, where:
the antenna fixing part is fixedly connected with the gas meter shell through a connecting piece, so that the antenna body part is fixed on the inner wall of the gas meter shell;
the antenna body part is connected with a mainboard of the NB-IOT intelligent gas meter through a high-frequency transmission cable, high-frequency signals given by the mainboard are transmitted to the antenna body part through the high-frequency transmission cable, and the high-frequency signals are radiated outwards by the antenna body part.
Preferably, the value range of the included angle α is: 85 ° ≤α≤95 ° 。
Preferably, the inner wall of the gas meter shell is provided with mounting clamping parts at a certain distance, and the size of the area of the inner wall of the gas meter shell between the two mounting clamping parts is adapted to the size of the antenna body part.
Preferably, the antenna fixing part comprises a mounting plane attached to the gas meter shell, a screw hole is formed in the mounting plane, and the antenna fixing part is fixedly connected with the gas meter shell after the screw penetrates through the screw hole.
Preferably, the antenna body portion includes a wide-gap L-shaped structure, a narrow-gap L-shaped structure adjacent to the wide-gap L-shaped structure, and a loop-shaped structure adjacent to the narrow-gap L-shaped structure, wherein:
the opening directions of the wide-gap L-shaped structure and the narrow-gap L-shaped structure are opposite, and the gap interval of the wide gap of the wide-gap L-shaped structure is larger than the gap interval of the narrow gap of the narrow-gap L-shaped structure; the wide-gap L-shaped structure and the narrow-gap L-shaped structure multiplex the same adjacent edge I;
the wide-gap L-shaped structure is used as an antenna low-frequency resonance arm, and the communication function is realized by satisfying the quarter wavelength of the antenna through a current loop;
the gap coupling between the antenna low-frequency resonance arm and the high-frequency transmission cable is realized by controlling the gap distance and the length of the narrow gap of the narrow-gap L-shaped structure, so that the high-frequency performance is realized;
the narrow-gap L-shaped structure and the square-shaped structure multiplex the same adjacent edge two, a transition gap for communicating the narrow gap of the narrow-gap L-shaped structure with the gap of the square-shaped structure is arranged on the adjacent edge two, the transition gap is used as an FEED point, a connection point used as a GND point is arranged on the transition gap, and the transition gap and the connection point respectively correspond to a feeder line and a shielding layer of the high-frequency transmission cable and are welded and fixed with the high-frequency transmission cable;
the loop structure is used as the GND layer.
The common intelligent gas meter is provided with a spring antenna or an FPC or PCB antenna of independent GND, the former has relatively poor radiation performance, and the latter needs a larger area and is relatively complex to install. The antenna scheme provided by the invention utilizes a screw locking mode, the antenna GND is connected with the shell metal body to serve as the antenna reference GND while the antenna is fixed, the antenna performance is improved, the antenna area is greatly reduced, and the antenna is convenient to assemble.
Drawings
FIG. 1 is a schematic view of the installation position of the present invention in a gas meter housing;
FIG. 2 is a schematic structural view of the present invention;
fig. 3 is an antenna S11 VSWR;
FIG. 4 is an antenna efficiency EFF%;
fig. 5 is an antenna pattern.
Detailed Description
The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.
As shown in fig. 1 and 2, the NB-IOT intelligent gas meter antenna provided by the present invention is made of a metal sheet with a thickness of 5mm, and includes an antenna body 1 and an antenna fixing portion 2 connected to a side surface of the antenna body 1. The plane of the antenna body 1 and the plane of the antenna fixing portion 2 form an included angle α, and in this embodiment, the included angle α is 90 °.
The antenna fixing part 2 is fixedly connected with the gas meter shell through a connecting piece, so that the antenna body part 1 is fixed on the inner wall of the gas meter shell. The antenna fixing part 2 comprises a mounting plane 2-1 attached to the gas meter shell, a screw hole 2-2 is formed in the mounting plane 2-1, and the antenna fixing part 2 is fixedly connected with the gas meter shell after the screw penetrates through the screw hole 2-2.
The antenna body part 1 is connected with a mainboard of the NB-IOT intelligent gas meter through a high-frequency transmission cable 3, a high-frequency signal given by the mainboard is transmitted to the antenna body part 1 through the high-frequency transmission cable 3, and the antenna body part 1 radiates outwards. The inner wall of the gas meter shell is provided with installation clamping pieces 4 at certain intervals, and the size of the area, between the two installation clamping pieces 4, of the inner wall of the gas meter shell is matched with the size of the antenna body part 1.
The antenna body part 1 comprises a wide-gap L-shaped structure 1-1, a narrow-gap L-shaped structure 1-2 adjacent to the wide-gap L-shaped structure 1-1, and a rectangular-square-shaped structure 1-3 adjacent to the narrow-gap L-shaped structure 1-2. In this embodiment:
the opening direction of the wide-gap L-shaped structure 1-1 is opposite to that of the narrow-gap L-shaped structure 1-2, and the gap distance of a wide gap 1-4 of the wide-gap L-shaped structure 1-1 is larger than that of a narrow gap 1-5 of the narrow-gap L-shaped structure 1-2; the wide-gap L-shaped structure 1-1 and the narrow-gap L-shaped structure 1-2 multiplex the same adjacent edge 1-6.
The wide-gap L-shaped structure 1-1 is used as an antenna low-frequency resonance arm, and a communication function is realized by satisfying a quarter wavelength of the antenna through a current loop.
The gap coupling between the antenna low-frequency resonance arm and the high-frequency transmission cable 3 is realized by controlling the gap distance and the length of the narrow gap 1-5 of the narrow-gap L-shaped structure 1-2, and the high-frequency performance is realized.
The narrow-gap L-shaped structure 1-2 and the square-shaped structure 1-3 multiplex the same adjacent edge two 1-7, a transition gap 1-8 which is used for communicating the narrow gap 1-5 of the narrow-gap L-shaped structure 1-2 with the gap 1-9 of the square-shaped structure 1-3 is arranged on the adjacent edge two 1-7, the transition gap 1-8 is used as an FEED point, a connection point which is used as a GND point is arranged on the transition gap 1-8, the transition gap 1-8 and the connection point respectively correspond to a feeder line and a shielding layer of the high-frequency transmission cable 3, and the transition gap 1-8 and the connection point are welded and fixed with the high-frequency transmission cable 3.
The loop type structures 1 to 3 are used as GND layers.
The antenna body part 1 is arranged on the side wall of the gas meter shell and is far away from the peripheral PCB, the screen and the data connecting line, so that the radiation of the whole machine is prevented from being interfered. Meanwhile, the assembly is convenient, and according to the installation sequence of the whole meter, the antenna can be installed on the shell firstly, then the mainboard is installed, and finally the transmission line connector is connected, so that the assembly is facilitated.
Claims (4)
1. The utility model provides a NB-IOT intelligent gas meter antenna, its characterized in that, by the sheetmetal preparation that thickness reaches 5mm at least forms, including antenna body portion (1) and connect antenna fixed part (2) in antenna body portion (1) side, an contained angle alpha is personally submitted with antenna fixed part (2) place plane in antenna body portion (1) place plane, wherein:
the antenna fixing part (2) is fixedly connected with the gas meter shell through a connecting piece, so that the antenna body part (1) is fixed on the inner wall of the gas meter shell;
the antenna body part (1) is connected with a mainboard of the NB-IOT intelligent gas meter through a high-frequency transmission cable (3), a high-frequency signal given by the mainboard is transmitted to the antenna body part (1) through the high-frequency transmission cable (3), and the antenna body part (1) radiates outwards;
the antenna body part (1) comprises a wide-gap L-shaped structure (1-1), a narrow-gap L-shaped structure (1-2) adjacent to the wide-gap L-shaped structure (1-1), and a square-shaped structure (1-3) adjacent to the narrow-gap L-shaped structure (1-2), wherein:
the opening directions of the wide-gap L-shaped structure (1-1) and the narrow-gap L-shaped structure (1-2) are opposite, and the gap distance of a wide gap (1-4) of the wide-gap L-shaped structure (1-1) is larger than the gap distance of a narrow gap (1-5) of the narrow-gap L-shaped structure (1-2); the wide-gap L-shaped structure (1-1) and the narrow-gap L-shaped structure (1-2) multiplex the same adjacent edge I (1-6);
the wide-gap L-shaped structure (1-1) is used as an antenna low-frequency resonance arm, and the communication function is realized by satisfying the quarter wavelength of the antenna through a current loop;
the gap coupling between the antenna low-frequency resonance arm and the high-frequency transmission cable (3) is realized by controlling the gap distance and the length of the narrow gap (1-5) of the narrow-gap L-shaped structure (1-2), so that the high-frequency performance is realized;
the narrow-gap L-shaped structure (1-2) and the square-shaped structure (1-3) multiplex the same adjacent edge two (1-7), a transition gap (1-8) which is used for communicating the narrow gap (1-5) of the narrow-gap L-shaped structure (1-2) with the gap (1-9) of the square-shaped structure (1-3) is arranged on the adjacent edge two (1-7), the transition gap (1-8) is used as an FEED point, a connection point which is used as a GND point is arranged on the transition gap (1-8), the transition gap (1-8) and the connection point respectively correspond to a feeder line and a shielding layer of the high-frequency transmission cable (3), and the transition gap and the connection point are welded and fixed with the high-frequency transmission cable (3);
the zigzag structures (1-3) are used as GND layers.
2. The NB-IOT intelligent gas meter antenna according to claim 1, wherein the included angle α has a range: alpha is more than or equal to 85 degrees and less than or equal to 95 degrees.
3. An NB-IOT intelligent gas meter antenna as claimed in claim 1, wherein the mounting pins (4) are spaced apart from each other on the inner wall of the gas meter housing, and the size of the area between the two mounting pins (4) on the inner wall of the gas meter housing is adapted to the size of the antenna body (1).
4. The NB-IOT intelligent gas meter antenna according to claim 1, wherein the antenna fixing portion (2) includes a mounting plane (2-1) attached to the gas meter housing, a screw hole (2-2) is formed in the mounting plane (2-1), and a screw passes through the screw hole (2-2) to connect and fix the antenna fixing portion (2) to the gas meter housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011215407.8A CN112332076B (en) | 2020-11-04 | 2020-11-04 | NB-IOT intelligent gas meter antenna |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011215407.8A CN112332076B (en) | 2020-11-04 | 2020-11-04 | NB-IOT intelligent gas meter antenna |
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| CN112332076A CN112332076A (en) | 2021-02-05 |
| CN112332076B true CN112332076B (en) | 2023-01-03 |
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| CN202011215407.8A Active CN112332076B (en) | 2020-11-04 | 2020-11-04 | NB-IOT intelligent gas meter antenna |
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Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002374112A (en) * | 2001-06-13 | 2002-12-26 | Matsushita Electric Ind Co Ltd | Information communication device antenna |
| TWI527308B (en) * | 2008-09-25 | 2016-03-21 | 平永科技股份有限公司 | Slot antennas, including meander slot antennas, and method of making and mobile phone device and integrated circuit comprising the same |
| CN202042593U (en) * | 2011-04-18 | 2011-11-16 | 广东欧珀移动通信有限公司 | Multiple frequency-range built-in antenna device |
| CN203850417U (en) * | 2014-01-02 | 2014-09-24 | 浙江超仪电子技术股份有限公司 | Compact-type three-dimensional antenna |
| JP6731578B2 (en) * | 2016-09-01 | 2020-07-29 | パナソニックＩｐマネジメント株式会社 | Wireless communication device |
| CN207009659U (en) * | 2017-06-19 | 2018-02-13 | 上海深迅通信技术有限公司 | A kind of gas meter 433MHz frequency range FPC antennas |
| CN110649938B (en) * | 2019-09-25 | 2024-02-27 | 辽宁地质工程职业学院 | Full-band narrowband internet of things electric tuning pipeline induction antenna |
| CN211208662U (en) * | 2020-01-14 | 2020-08-07 | 上海深迅通信技术有限公司 | Intelligent gas meter for NB-IOT communication |
-
2020
- 2020-11-04 CN CN202011215407.8A patent/CN112332076B/en active Active
Non-Patent Citations (2)
| Title |
|---|
| NB-IoT通信技术在智能燃气表的应用;邵泽华;《煤气与热力》;20190515;全文 * |
| 应用于NB-IoT/WLAN/WiMAX的多频微带天线;王腾等;《电子器件》;20191220(第06期);全文 * |
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Address after: No. 800 Songda Road, Qingpu District, Shanghai, 201799 Patentee after: ZENNER Metering Technology (Shanghai) Ltd. Country or region after: China Address before: 201799 building 4, 6558 Yinggang East Road, Qingpu District, Shanghai Patentee before: ZENNER Metering Technology (Shanghai) Ltd. Country or region before: China |