CN201331580Y - Integrated Beidou No.1 satellite navigation system user receiver - Google Patents
Integrated Beidou No.1 satellite navigation system user receiver Download PDFInfo
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- CN201331580Y CN201331580Y CNU2008202376828U CN200820237682U CN201331580Y CN 201331580 Y CN201331580 Y CN 201331580Y CN U2008202376828 U CNU2008202376828 U CN U2008202376828U CN 200820237682 U CN200820237682 U CN 200820237682U CN 201331580 Y CN201331580 Y CN 201331580Y
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Abstract
The utility model discloses an integrated Beidou No.1 satellite navigation system user receiver. A low-noise amplifier, a digital processing module, a power amplifier, a transmitting antenna, a power supply and an interface module are mounted in a shielding cavity; an antenna and an antenna cover are arranged above the shielding cavity; and the bottom of the shielding cavity is provided with a bottom plate. In the utility model, a radio frequency coaxial cable and a connector arranged among the aluminum shielding cases of the power amplifier and the low-noise amplifier as well as a connection module are omitted, thereby the cost is saved; after the modules adopt circuit board lap joint or pin header connection, the interference of an transmitting signal of the user receiver to the internal modules is remarkably reduced when connecting a cable, so that the user receiver can still work reliably without covering a shielding plate or the bottom plate of the complete user receiver.
Description
Technical field
The utility model relates to satellite navigation system subscriber computer of a kind of integrated Beidou, belongs to the satellite navigation and the communications field.
Background technology
" No. one, the Big Dipper " system is the satellite navigation system of China's independent development, and subscriber computer is the important component part of system.The user utilizes that subscriber computer can position, navigation and short data communication, in the location, navigation and the communications field have a wide range of applications.According to installing and using the mode difference, subscriber computer mainly is divided into hand-held set and vehicle-mounted machine two classes.The vehicular subscriber computer can be installed on the mobile vehicles such as automobile, boats and ships and use, and also can be installed on the fixation means of various ground and use.Subscriber computer mainly is made up of antenna, low noise amplifier (LNA), power amplifier (being called for short " power amplifier "), digital signal processing module, power supply and interface module modules such as (being called for short " power supply and interface module ").The vehicle-mounted subscriber computer of existing majority generally is installed in antenna, LNA and power amplifier in the casing, forms Anneta module; Digital signal processing module, power supply and interface module etc. are installed in another casing, form the subscriber computer terminal; Anneta module is connected with a high-low frequency mixed loading cable with the subscriber computer terminal room, and the subscriber computer of this version is commonly called " split air conditioner ".The vehicle-mounted subscriber computer of minority is installed in each module in the casing, and the subscriber computer of this version is commonly referred to " all-in-one ".Compare with split air conditioner, all-in-one is installed in all modules in the casing, and not only volume is little, in light weight, and owing to save a high-low frequency mixed loading cable and corresponding connector, cost is lower, and reliability is higher, installs and uses convenient.Existing all-in-one generally is installed in power amplifier, LNA, digital signal processing module, power supply and interface module respectively in the different aluminum shielding boxs earlier, and all shielding boxs are installed in the antenna bottom cavity more together, connect with cable between each module.There is following problem in such structure: (1) cost height: because use shielding box and stube cable are more, cause the complete machine cost higher; (2) reliability is lower: because inner each module connects by high frequency and low-frequency connector, be subjected to the influence of temperature variation and mechanical vibration, occur the connector loose contact easily, and then reduce whole aircraft reliability; (3) Electro Magnetic Compatibility is relatively poor: must be encased inside waterproof grommet between antenna bottom cavity and base plate, because O-ring seal generally uses the elastomeric material of insulation, so the capability of electromagnetic shielding of whole cavity is bad, although each module all is installed in the shielding box, but the stube cable of intermodule is difficult to shielding, be subjected to easily that subscriber computer self transmits and the interference of external electromagnetic signal, cause the complete machine performance to descend.
Summary of the invention
Goal of the invention: the purpose of this utility model is to have the relatively poor problem of cost height, reliability and Electro Magnetic Compatibility at prior art, provides a kind of integrated Beidou a satellite navigation system subscriber computer.
Technical scheme: satellite navigation system subscriber computer of a kind of integrated Beidou, comprise receiving antenna, low noise amplifier, digital signal processing module, power amplifier, emitting antenna, power supply and interface module, shielding cavity, antenna house and base plate, receiving antenna is connected with the input end of low noise amplifier, and the low noise amplifier output terminal is connected with the input end of digital signal processing module; The output terminal of digital signal processing module is connected with the input end of power amplifier, and the output terminal of power amplifier is connected with emitting antenna; Digital signal processing module is connected with the interface of power supply and interface module by power lead and data line, described low noise amplifier, digital signal processing module, power amplifier and power supply and interface module are arranged in the shielding cavity, the shielding cavity top is equipped with receiving antenna, emitting antenna and antenna house, and the bottom of shielding cavity is equipped with base plate.
Wherein, in shielding cavity, be provided with and enclose frame and be divided into a chamber, two chambeies and three chambeies, digital signal processing module and power supply and interface module are installed in the chamber, mounting power amplifier two chambeies in, installation low noise amplifier in three chambeies.Enclose installation aluminum barricade on the frame simultaneously, strengthening the shielding properties of whole equipment.
Wherein, changed the connection originating party formula between each module, be connected with probe between receiving antenna and the low noise amplifier; Power amplifier and emitting antenna can be connected or weld with probe.Between low noise amplifier and the digital signal processing module, overlap with circuit board respectively between digital signal processing module and the power amplifier; Digital signal processing module is connected with power supply and interface module utilization row pin.Save stube cable and connector, saved expense.
Receiving antenna receives the signal of a satellite of the Big Dipper, gives LNA then and amplifies; LNA outputs signal to digital signal processing module, the amplification, the frequency conversion that achieve a butt joint in digital signal processing module inside and collect mail number, and despreading, demodulation, decipher, separate frame, information processing, send the information framing, functions such as chnnel coding, band spectrum modulation, up-conversion; Digital signal processing module is given power amplifier the radiofrequency signal that will send, and after power amplifier amplifies, gives big-dipper satellite by transmission antennas transmit.Power supply and interface module realize that user terminal is the interface level conversion between computing machine and digital signal processing module, produces the various power supplys that inner each module of subscriber computer needs simultaneously.
Beneficial effect: (1) receiving antenna is used probe instead with the LNA input end and directly is connected, and emitting antenna and power amplifier output terminal use that probe is connected or directly welding instead; Directly overlap between LNA and digital signal processing module, power amplifier and digital signal processing module with circuit board; Digital signal processing module directly is connected with power supply and interface module utilization row pin type, changes each module connected mode of inside cavity, saves radio frequency coaxial-cable and connector and saves intermodule stube cable and connector.(2) frame is enclosed in increase in shielding cavity, and utilization is enclosed frame cavity is separated into three parts, is respectively applied for installation digital signal processing module and power supply and interface module, LNA, power amplifier, saves each module shielding box.(3) increase the aluminum barricade.Enclose installation aluminum barricade on the frame in inside cavity, realize good shielding inside cavity LNA, power amplifier, digital signal processing module and power supply and interface module.
After adopting this programme, satellite navigation system subscriber computer of each integrated Beidou can reduce cost about 400 yuan less with four radio frequency coaxial-cables and connector and four aluminum shielding boxs; After each module of inside cavity adopted circuit board overlap joint or row's pin to connect, when obviously reducing the cable connection, this machine transmitted by the interference of stube cable to internal module, and under the condition of not covering barricade and complete machine base plate, subscriber computer still can reliably working.
Description of drawings
Fig. 1 is a composition frame chart of the present utility model.
Fig. 2 is the inner structure synoptic diagram of shielding cavity of the present utility model.
Fig. 3 shielding cavity installs the structural representation of barricade.
Fig. 4 is an external structure synoptic diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is done further explanation.
As shown in Figure 1, satellite navigation system subscriber computer of a kind of integrated Beidou comprises receiving antenna 1, low noise amplifier 2, digital signal processing module 3, power amplifier 4, emitting antenna 5, power supply and interface module 6, shielding cavity 7, antenna house 8 and base plate 9.Receiving antenna 1 is connected with probe with the input end of low noise amplifier 2, saves radio frequency coaxial-cable and connector.The input end of the output terminal of low noise amplifier 2 and digital signal processing module 3 overlaps with circuit board, saves intermodule stube cable and connector.Wherein, the YTLNA-A type low noise amplifier that low noise amplifier 2 can use Nanjing clever news Science and Technology Ltd. to produce, digital signal processing module of the BD1E_MV30 type Big Dipper that digital signal processing module 3 can use Nanjing full moral Electron Technology Co., Ltd to produce.
The input end of the output terminal of digital signal processing module 3 and power amplifier 4 overlaps with circuit board, saves intermodule stube cable and connector.The output terminal of power amplifier 4 is connected with emitting antenna 5 usefulness probes or welds, and saves radio frequency coaxial-cable and connector.Wherein, power amplifier 4 can use the YTJPA-A type radio-frequency power amplifier that Nanjing clever news Science and Technology Ltd. produces.
Digital signal processing module 3 directly is connected with power supply and interface module 6 usefulness row pin, saves intermodule stube cable and connector.Power supply and interface module 6 are connected with computing machine, and the digital signal of digital module 3 can be input in the outside computing machine, shows on computers; Signal in the computing machine also can be input in the all-in-one.
Wherein, receiving antenna 1, emitting antenna 5 can use TTBD03 type Big Dipper generation antenna and the antenna house that Xi'an main office of Tian Tong Electronics produces; Subscriber computer power supply of the BD1E_IV32 type Big Dipper and interface module that power supply and interface module 6 can adopt Nanjing full moral Electron Technology Co., Ltd to produce; " No. one, the Big Dipper " all-in-one machine structure spare that antenna bottom cavity, barricade, base plate can use Nan Xiashu normal Nan Suliaomojuchang in Wujin, Changzhou to produce.
Described receiving antenna 1, low noise amplifier 2, digital signal processing module 3, power amplifier 4, emitting antenna 5 and power supply and interface module 6 are arranged in the shielding cavity 7.As shown in Figure 2, be provided with in the shielding cavity 7 and enclose frame shielding cavity 7 is separated into three parts, be respectively a chamber 71, two chambeies 72 and three chambeies 73, wherein, one chamber 71 is used for installing digital signal processing module 3 and power supply and interface module 6, two chambeies 72 and three chambeies 73 are respectively applied for mounting power amplifier 4, low noise amplifier 2, save the shielding box of each module in the prior art, have reduced cost.As shown in Figure 3, the aluminum barricade is installed enclosing on the frame, realizes good shielding inside cavity LNA, power amplifier, digital signal processing module and power module.As shown in Figure 4, shielding cavity 7 tops are equipped with antenna house 8, and the bottom of shielding cavity 7 is equipped with base plate 9.
The utility model provides the thinking and the method for a satellite navigation system subscriber computer of a kind of integrated Beidou; the method and the approach of this technical scheme of specific implementation are a lot; the above only is a preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.The all available prior art of each component part not clear and definite in the present embodiment is realized.
Claims (6)
1, satellite navigation system subscriber computer of a kind of integrated Beidou, it is characterized in that, comprise receiving antenna (1), low noise amplifier (2), digital signal processing module (3), power amplifier (4), emitting antenna (5), power supply and interface module (6), shielding cavity (7), antenna house (8) and base plate (9), receiving antenna (1) is connected with the input end of low noise amplifier (2), and low noise amplifier (2) output terminal is connected with the input end of digital signal processing module (3); The output terminal of digital signal processing module (3) is connected with the input end of power amplifier (4), and the output terminal of power amplifier (4) is connected with emitting antenna (5); Digital signal processing module (3) is connected with the interface of power supply and interface module (6) by power lead and data line, described digital signal processing module (3), power amplifier (4), emitting antenna (5) and power supply and interface module (6) are arranged in the shielding cavity (7), shielding cavity (7) top is equipped with receiving antenna (1), emitting antenna (5) and antenna house (8), and the bottom of shielding cavity (7) is equipped with base plate (9).
2, satellite navigation system subscriber computer of integrated Beidou according to claim 1, it is characterized in that: in shielding cavity (7), be provided with and enclose frame and be divided into a chamber (71), two chambeies (72) and three chambeies (73), digital signal processing module (3) and power supply and interface module (6) are installed in one chamber (71), low noise amplifier (2) is installed in the interior mounting power amplifiers in two chambeies (71) (4), three chambeies (71).
3, satellite navigation system subscriber computer of integrated Beidou according to claim 2 is characterized in that: described enclosing is equipped with the aluminum barricade on the frame.
4, satellite navigation system subscriber computer of integrated Beidou according to claim 1 is characterized in that: be connected with probe between described receiving antenna (1) and the low noise amplifier (2); Be connected with probe between power amplifier (4) and the emitting antenna (5) or weld.
5, satellite navigation system subscriber computer of integrated Beidou according to claim 1 is characterized in that: between low noise amplifier (2) and the digital signal processing module (3), overlap with circuit board respectively between digital signal processing module (3) and the power amplifier (4).
6, satellite navigation system subscriber computer of integrated Beidou according to claim 1 is characterized in that: digital signal processing module (3) utilizes row's pin to be connected with power supply and interface module (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202376828U CN201331580Y (en) | 2008-12-30 | 2008-12-30 | Integrated Beidou No.1 satellite navigation system user receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202376828U CN201331580Y (en) | 2008-12-30 | 2008-12-30 | Integrated Beidou No.1 satellite navigation system user receiver |
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| Publication Number | Publication Date |
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| CN201331580Y true CN201331580Y (en) | 2009-10-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202376828U Expired - Lifetime CN201331580Y (en) | 2008-12-30 | 2008-12-30 | Integrated Beidou No.1 satellite navigation system user receiver |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102156289A (en) * | 2011-03-09 | 2011-08-17 | 陕西诺维信息技术有限公司 | Dual-mode positioning time-service type receiver for compass satellite and global positioning system (GPS) satellite |
| CN102590616A (en) * | 2012-03-12 | 2012-07-18 | 中国电子科技集团公司第五十四研究所 | Method for measuring insertion loss of any position of antenna housing |
| CN103885068A (en) * | 2014-04-08 | 2014-06-25 | 北京北斗星通导航技术股份有限公司 | Dispatching management type user receiver |
| CN105826663A (en) * | 2015-01-04 | 2016-08-03 | 莱尔德无线技术（上海）有限公司 | Antenna for vehicle and antenna system |
| WO2017197954A1 (en) * | 2016-05-16 | 2017-11-23 | 江苏指南针导航通信技术股份有限公司 | Low-noise power amplifier used for satellite navigation and time service, and method for use |
| WO2018010257A1 (en) * | 2016-07-12 | 2018-01-18 | 成都泰格微波技术股份有限公司 | Conformal spherical antenna array having good shielding results |
-
2008
- 2008-12-30 CN CNU2008202376828U patent/CN201331580Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102156289A (en) * | 2011-03-09 | 2011-08-17 | 陕西诺维信息技术有限公司 | Dual-mode positioning time-service type receiver for compass satellite and global positioning system (GPS) satellite |
| CN102590616A (en) * | 2012-03-12 | 2012-07-18 | 中国电子科技集团公司第五十四研究所 | Method for measuring insertion loss of any position of antenna housing |
| CN102590616B (en) * | 2012-03-12 | 2014-10-29 | 中国电子科技集团公司第五十四研究所 | Method for measuring insertion loss of any position of antenna housing |
| CN103885068A (en) * | 2014-04-08 | 2014-06-25 | 北京北斗星通导航技术股份有限公司 | Dispatching management type user receiver |
| CN103885068B (en) * | 2014-04-08 | 2017-01-18 | 北京北斗星通导航技术股份有限公司 | Dispatching management type user receiver |
| CN105826663A (en) * | 2015-01-04 | 2016-08-03 | 莱尔德无线技术（上海）有限公司 | Antenna for vehicle and antenna system |
| WO2017197954A1 (en) * | 2016-05-16 | 2017-11-23 | 江苏指南针导航通信技术股份有限公司 | Low-noise power amplifier used for satellite navigation and time service, and method for use |
| WO2018010257A1 (en) * | 2016-07-12 | 2018-01-18 | 成都泰格微波技术股份有限公司 | Conformal spherical antenna array having good shielding results |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091021 |
|
| CX01 | Expiry of patent term |