CN203854845U - Beidou terminal for water floating - Google Patents
Beidou terminal for water floating Download PDFInfo
- Publication number
- CN203854845U CN203854845U CN201420146407.0U CN201420146407U CN203854845U CN 203854845 U CN203854845 U CN 203854845U CN 201420146407 U CN201420146407 U CN 201420146407U CN 203854845 U CN203854845 U CN 203854845U
- Authority
- CN
- China
- Prior art keywords
- antenna
- big dipper
- seal casing
- dipper terminal
- floating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a beidou terminal for water floating and belongs to the technical field of shipborne positioning and monitoring. The beidou terminal is arranged in a seal cover shell, the seal cover shell is arranged on an inflated floating bag and communicated with a high-pressure air cylinder through a one-way air inlet valve and an automatic inflating device, and an overflow valve is arranged on the seal cover shell. The beidou terminal comprises a circuit board assembly and a beidou antenna, wherein the beidou antenna is formed by vertically stacking a receiving antenna positioned at the top and a transmitting antenna positioned at the bottom; the transmitting antenna and the receiving antenna both are circular-polarization four-arm spiral antennas, and each circular-polarization four-arm spiral antenna comprises four spiral wires and a circular ring formed by connecting the tops of the four spiral wires. The beidou terminal can perform dual-band work, and has the relatively wide impedance axial-ratio bandwidth, wide beam width, and the waterproof performance.
Description
Technical field
The utility model relates to a kind of Big Dipper terminal, belongs to boat-carrying locating and monitoring technical field.
Background technology
At present, when in danger on the water, personnel's life is on the hazard and salvage ship can not reach the spot the very first time time, can throw in inflation floatoblast, and distress personnel can be climbed up inflation floatoblast, waits for rescue the further rescue of ship, for salvage work gets the quality time.But, in the time that weather conditions are more severe, need to reliably locate inflation floatoblast, sometimes also need to carry out necessary communication contact.
In recent years, the big-dipper satellite position fixing system of China is constantly ripe, and oneself is through developing into one of global four large satellite position fixing systems.The open up low frequency 1610-1626.5 of dipper system MHz at present, descending high band is 2483.5-2500 MHz.With the gps system of the current leading position that dominates the market, dipper system has own unique advantage.It possesses location and the dual-use function of communicating by letter simultaneously, support, and gps system can only be located without other communication system.
Utility model content
The technical problems to be solved in the utility model is for prior art deficiency, proposes a kind ofly work in two-band and have wider impedance axial ratio bandwidth and have the wide beam width Big Dipper terminal for floating on water of waterproof again.
The utility model is that the technical scheme that solves the problems of the technologies described above proposition is: a kind of Big Dipper terminal for floating on water, this Big Dipper terminal is placed in seal casing, described seal casing is located on inflation floatoblast, described seal casing is communicated with high-pressure gas cylinder by breather cheek valve and self-filler, and described seal casing is provided with by pass valve; This Big Dipper terminal comprises circuit board assemblies and Beidou antenna, described Beidou antenna is to be made up of with the emitting antenna stacked on top that is positioned at bottom the receiving wire that is positioned at top, described emitting antenna and receiving wire are all circular polarization four-arm spiral antennas, and described circular polarization four-arm spiral antenna comprises four helix lines and an annulus that is connected four helix line tops.
The utility model adopts the beneficial effect of technique scheme to be: 1) by Big Dipper terminal is placed in seal casing, seal casing is located on inflation floatoblast, seal casing is communicated with high-pressure gas cylinder by breather cheek valve and self-filler, seal casing is provided with by pass valve, like this, when inflation floatoblast swims on the water surface, air in high-pressure gas cylinder can be filled with in seal casing, discharge the water inlet in seal casing, keep being dried in seal casing, prevent the destruction to Big Dipper terminal into water; 2) because this Big Dipper terminal comprises circuit board assemblies and Beidou antenna, Beidou antenna is to be made up of with the emitting antenna stacked on top that is positioned at bottom the receiving wire that is positioned at top, emitting antenna and receiving wire are all circular polarization four-arm spiral antennas, circular polarization four-arm spiral antenna comprises the annulus that four helix lines are connected with the top of four helix lines, like this, the compact conformation of Beidou antenna, works in two-band and has wider impedance axial ratio bandwidth and have wide beam width.
The improvement of technique scheme is: described receiving wire is left-hand circular polarization four-arm spiral antenna, described emitting antenna is right-handed circular polarization four-arm spiral antenna, the winding number of the helix line of described receiving wire is 1/4th circles, and the winding number of the helix line of described emitting antenna is 1/4th circles.
The improvement of technique scheme is: the vertical dimension of the helix line of described receiving wire is 52mm, the helical length of described receiving wire is 66mm, the vertical dimension of the helix line of described emitting antenna is 82mm, and the helical length of described emitting antenna is 102mm.
The improvement of technique scheme is: described seal casing outside is fixed with for the photovoltaic panel to the power supply of Big Dipper terminal.
The improvement of technique scheme is: described seal casing outside face scribbles specular layer.
The improvement of technique scheme is: described seal casing is openable seal casing, liquid crystal display and keypad that described circuit board assemblies comprises mainboard, is connected with mainboard.
The improvement of technique scheme is: described inflation floatoblast is made up of upper inflation floatoblast and lower inflation floatoblast.
Brief description of the drawings
Below in conjunction with accompanying drawing, the utility model is described in further detail:
Fig. 1 is the structural representation of the Big Dipper terminal for floating on water of the utility model embodiment.
Fig. 2 is the structural representation of the Beidou antenna of Fig. 1.
Detailed description of the invention
Embodiment
The Big Dipper terminal for floating on water of the present embodiment, as depicted in figs. 1 and 2, this Big Dipper terminal is placed in seal casing 1, and seal casing 1 is located on inflation floatoblast 2, seal casing 1 is communicated with high-pressure gas cylinder 1-1 by breather cheek valve and self-filler, and seal casing 1 is provided with by pass valve.
This Big Dipper terminal comprises circuit board assemblies and Beidou antenna 3.Beidou antenna 3 is to be made up of with the emitting antenna 3-2 stacked on top that is positioned at bottom the receiving wire 3-1 that is positioned at top.Emitting antenna 3-2 and receiving wire 3-1 are all circular polarization four-arm spiral antennas, and circular polarization four-arm spiral antenna comprises four helix lines and an annulus that is connected four helix line tops.
The receiving wire 3-1 of the present embodiment is left-hand circular polarization four-arm spiral antenna, and emitting antenna 3-2 is right-handed circular polarization four-arm spiral antenna, and the winding number of the helix line of receiving wire 3-1 is 1/4th circles, and the winding number of the helix line of emitting antenna 3-2 is 1/4th circles.
The vertical dimension of the helix line of the receiving wire 3-1 of the present embodiment is 52mm, and the helical length of receiving wire 3-1 is 66mm, and the vertical dimension of the helix line of emitting antenna 3-2 is 82mm, and the helical length of emitting antenna 3-2 is 102mm.
Seal casing 1 outside of the present embodiment is fixed with for the photovoltaic panel to the power supply of Big Dipper terminal.
Seal casing 1 outside face of the present embodiment scribbles specular layer.
The seal casing 1 of the present embodiment is openable seal casing, liquid crystal display and keypad that circuit board assemblies comprises mainboard, is connected with mainboard.
The inflation floatoblast 2 of the present embodiment is made up of upper inflation floatoblast and lower inflation floatoblast.
The utility model is not limited to above-described embodiment.All employings are equal to replaces the technical scheme forming, and all drops on the protection domain of the utility model requirement.
Claims (7)
1. the Big Dipper terminal for floating on water, it is characterized in that: this Big Dipper terminal is placed in seal casing, described seal casing is located on inflation floatoblast, and described seal casing is communicated with high-pressure gas cylinder by breather cheek valve and self-filler, and described seal casing is provided with by pass valve; This Big Dipper terminal comprises circuit board assemblies and Beidou antenna, described Beidou antenna is to be made up of with the emitting antenna stacked on top that is positioned at bottom the receiving wire that is positioned at top, described emitting antenna and receiving wire are all circular polarization four-arm spiral antennas, and described circular polarization four-arm spiral antenna comprises four helix lines and an annulus that is connected four helix line tops.
2. as claimed in claim 1 for the Big Dipper terminal of floating on water, it is characterized in that: described receiving wire is left-hand circular polarization four-arm spiral antenna, described emitting antenna is right-handed circular polarization four-arm spiral antenna, the winding number of the helix line of described receiving wire is 1/4th circles, and the winding number of the helix line of described emitting antenna is 1/4th circles.
3. as claimed in claim 1 or 2 for the Big Dipper terminal of floating on water, it is characterized in that: the vertical dimension of the helix line of described receiving wire is 52mm, the helical length of described receiving wire is 66mm, the vertical dimension of the helix line of described emitting antenna is 82mm, and the helical length of described emitting antenna is 102mm.
4. as claimed in claim 1 or 2 for the Big Dipper terminal of floating on water, it is characterized in that: described seal casing outside is fixed with for the photovoltaic panel to the power supply of Big Dipper terminal.
5. as claimed in claim 1 or 2 for the Big Dipper terminal of floating on water, it is characterized in that: described seal casing outside face scribbles specular layer.
6. as claimed in claim 1 or 2 for the Big Dipper terminal of floating on water, it is characterized in that: described seal casing is openable seal casing liquid crystal display and keypad that described circuit board assemblies comprises mainboard, is connected with mainboard.
7. as claimed in claim 1 or 2 for the Big Dipper terminal of floating on water, it is characterized in that: described inflation floatoblast is made up of upper inflation floatoblast and lower inflation floatoblast.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420146407.0U CN203854845U (en) | 2014-03-28 | 2014-03-28 | Beidou terminal for water floating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420146407.0U CN203854845U (en) | 2014-03-28 | 2014-03-28 | Beidou terminal for water floating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203854845U true CN203854845U (en) | 2014-10-01 |
Family
ID=51604715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420146407.0U Expired - Fee Related CN203854845U (en) | 2014-03-28 | 2014-03-28 | Beidou terminal for water floating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203854845U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105742779A (en) * | 2016-02-15 | 2016-07-06 | 中国船舶重工集团公司第七〇五研究所 | Flexible inflatable antenna floating body inflation control device |
| CN107819186A (en) * | 2017-10-19 | 2018-03-20 | 中国船舶重工集团公司第七0五研究所 | A kind of floatoblast for installing the pressure-resistant antenna of the Big Dipper |
| CN109283559A (en) * | 2018-10-16 | 2019-01-29 | 山东省科学院海洋仪器仪表研究所 | A kind of inflatable ocean drift track following Radio Beacon |
| CN109449563A (en) * | 2018-11-29 | 2019-03-08 | Oppo广东移动通信有限公司 | Communication accessory and electronic device for electronic device |
-
2014
- 2014-03-28 CN CN201420146407.0U patent/CN203854845U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105742779A (en) * | 2016-02-15 | 2016-07-06 | 中国船舶重工集团公司第七〇五研究所 | Flexible inflatable antenna floating body inflation control device |
| CN105742779B (en) * | 2016-02-15 | 2018-04-13 | 中国船舶重工集团公司第七〇五研究所 | A kind of flexible inflatable antenna floating body aeration control device |
| CN107819186A (en) * | 2017-10-19 | 2018-03-20 | 中国船舶重工集团公司第七0五研究所 | A kind of floatoblast for installing the pressure-resistant antenna of the Big Dipper |
| CN109283559A (en) * | 2018-10-16 | 2019-01-29 | 山东省科学院海洋仪器仪表研究所 | A kind of inflatable ocean drift track following Radio Beacon |
| CN109449563A (en) * | 2018-11-29 | 2019-03-08 | Oppo广东移动通信有限公司 | Communication accessory and electronic device for electronic device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141001 Termination date: 20200328 |