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Intelligent monitoring system of building

A technology for monitoring systems and buildings, applied in the structural form of radiation elements, the structural connection of antenna grounding switches, electrical components, etc., can solve the problems of not being able to send short messages, etc., and achieve the effect of saving raw material costs and processing costs

Inactive Publication Date: 2019-05-21
王宏
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] At present, RNSS high-precision positioning antennas are mainly based on high-precision positioning, only for receiving RNSS navigation signals, using BD2-B3, BD2-B1, and GPS-L1 frequency bands, and do not have the ability to send short messages

Method used

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  • Intelligent monitoring system of building

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Embodiment Construction

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0032] refer to figure 1 , the present invention is formed by superimposing the upper, middle and lower layers of microstrip antennas and power splitter network towers. Divided into the upper layer S patch antenna 1, the second layer B1L patch antenna 2, the third layer B3 patch antenna 3 and the fourth layer power splitter network 4. Antenna frequency from high frequency to low frequency, from top to bottom. Therefore, the area of ​​the patch used becomes larger...

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Abstract

The invention relates to the technical field of an intelligent terminal of a Beidou navigation satellite building, and particularly discloses an intelligent monitoring system of a building. The intelligent monitoring system comprises circularly-polarized antennas with different frequency bands, wherein frequencies are laminated in a tower way from bottom to top and from low frequency to high frequency, an S patch antenna is antenna is arranged at an upper layer, a B1L combination patch antenna is arranged at a second layer, and a B3 patch antenna is arranged at a third layer. The upper layer selects single-feeding point central coaxial feeding chamfering to achieve the circularly-polarized antenna, an intermediate layer employs four-feeding point coaxial feeding mode to achieve positive and negative phase difference by a power division network, and the third layer employs four-feeding point to achieve right-rotation circular polarization of 0 degree, 90 degrees, 180 degrees and 270 degrees. The high-accuracy positioning function demand of a RNSS can be satisfied, and the transceiving function demand of a RDSS also can be achieved. The antenna employs a microstrip antenna multi-feeding point technology to improve phase central stability of the antenna, so that the phase central error is + / -2 millimeters, and the antenna employs a microstrip patch antenna tower-shaped laminationtechnology so as to be simultaneously compatible with a navigation frequency (BD2-B3, BD2-B1 and GPS-L1) of the RNSS and a transceiving frequency (BD-L and BD-S) of the RDSS.

Description

technical field [0001] The invention relates to the field of antenna technology, and is applied to Beidou high-precision satellite radio navigation services and satellite radio measurement services, specifically a Beidou multi-band wide-beam circularly polarized antenna, which is suitable for BD2-B3, BD2-B1, GPS- GPS antenna for L1, BD-L, BD-S bands. Background technique [0002] At present, RNSS high-precision positioning antennas are mainly based on high-precision positioning, only for receiving RNSS navigation signals, using BD2-B3, BD2-B1, and GPS-L1 frequency bands, and do not have the ability to send short messages. In the navigation satellite and operation control application system of the satellite navigation system, both RNSS and RDSS services are integrated at the same time. The system can not only provide users with continuous positioning and speed measurement capabilities (so-called passive navigation and positioning), but also perform high-speed data transmissio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q1/50H01Q15/24H01Q21/00H01Q21/30H01Q23/00
Inventor 王宏
Owner 王宏
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