CN111123296A - Remote system suitable for GLONASS satellite navigation signals - Google Patents
Remote system suitable for GLONASS satellite navigation signals Download PDFInfo
- Publication number
- CN111123296A CN111123296A CN201911288977.7A CN201911288977A CN111123296A CN 111123296 A CN111123296 A CN 111123296A CN 201911288977 A CN201911288977 A CN 201911288977A CN 111123296 A CN111123296 A CN 111123296A
- Authority
- CN
- China
- Prior art keywords
- side equipment
- machine room
- satellite navigation
- connector
- antenna
- 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.)
- Granted
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/03—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers
- G01S19/10—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers providing dedicated supplementary positioning signals
- G01S19/12—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers providing dedicated supplementary positioning signals wherein the cooperating elements are telecommunication base stations
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
- G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/42—Determining position
- G01S19/45—Determining position by combining measurements of signals from the satellite radio beacon positioning system with a supplementary measurement
- G01S19/46—Determining position by combining measurements of signals from the satellite radio beacon positioning system with a supplementary measurement the supplementary measurement being of a radio-wave signal type
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optical Communication System (AREA)
Abstract
The invention relates to a zoom-out system suitable for GLONASS satellite navigation signals, which comprises a first connector, antenna side equipment, an optical fiber, machine room side equipment and a second connector, wherein the first connector is connected with the antenna side equipment; the antenna side equipment comprises an antenna side protection unit, a feed unit, a first attenuation matching circuit and a broadband radio frequency laser which are connected in sequence; the equipment at the machine room side comprises a broadband radio frequency photodetector, a second broadband attenuation matching circuit and a machine room side protection unit which are sequentially connected; the GLONASS satellite navigation signal transmission system is low in cost and good in anti-interference performance, and by arranging the antenna side equipment and the machine room side equipment, the excellent characteristic of light signal transmission is repeatedly utilized, so that the transmission distance of the GLONASS satellite navigation signal from an antenna to a base station is expanded, and the long-distance transmission of the navigation signal is realized; the satellite navigation signal can still be accurately received and processed by the base station after being remotely transmitted in a complex electromagnetic environment; the interface protection function is realized, lightning stroke and surge signals can be isolated, and potential safety hazards caused by the lightning stroke and the surge signals are avoided being transmitted to a base station.
Description
Technical Field
The invention relates to the technical field of satellite navigation, in particular to a zoom-out system suitable for GLONASS satellite navigation signals.
Background
The 3G, 4G, 5G communication base stations all need to input satellite navigation signals and process the signals, the GLONASS navigation system is a satellite navigation system developed by russia and mainly used in the military field, and along with the development of communication base station technology and the diversified requirements of application environments and scenes, the existing satellite navigation signal transmission mode gradually cannot cover all application scenes, for example, for mountainous areas, super high-rise buildings and the like, the existing satellite navigation signal transmission has the defects of limited transmission distance, low transmission quality, poor anti-interference capability of transmission lines and the like, so that a new transmission system needs to be designed urgently, and the transmission distance of the satellite navigation signals is extended.
Disclosure of Invention
In order to overcome the defects in the background art, the invention discloses a zoom-out system suitable for GLONASS satellite navigation signals, which realizes the long-distance reliable transmission of the GLONASS satellite navigation signals from an antenna to a base station.
In order to achieve the purpose, the invention adopts the following technical scheme:
a remote system suitable for GLONASS satellite navigation signals comprises a first connector, antenna side equipment, an optical fiber, machine room side equipment and a second connector; the input end of the antenna side equipment is connected with an antenna for receiving GLONASS satellite navigation signals through a first connector and a radio frequency cable, the output end of the antenna side equipment is connected with the input end of the machine room side equipment through an optical fiber, and the output end of the machine room side equipment is connected with a communication base station through a second connector and the radio frequency cable;
the antenna side equipment comprises an antenna side protection unit, a feed unit, a first attenuation matching circuit and a broadband radio frequency laser which are connected in sequence; the input end of the antenna side protection unit is connected with the first connector, and the output end of the broadband radio frequency laser is connected with the optical fiber;
the equipment at the machine room side comprises a broadband radio frequency photodetector, a second attenuation matching circuit and a machine room side protection unit which are sequentially connected; the input end of the broadband radio frequency optical detector is connected with the optical fiber, and the output end of the machine room side protection unit is connected with the second connector.
Further, the antenna side protection unit comprises piezoresistors R1 and R2, power inductors L1, L2, L3, a DC blocking capacitor C1, a gas discharge tube G1 and a TVS tube D1; one end of the piezoresistor R1 is connected with the first connector, the other end of the piezoresistor R1 is connected with the piezoresistor R2 through a blocking capacitor C1, a power inductor L1, a power inductor L2 and a power inductor L3 are sequentially connected in series and then connected in parallel with the blocking capacitor C1, a node between the power inductor L1 and the power inductor L2 is grounded to GND through a gas discharge tube G1, and a node between the power inductor L2 and the power inductor L3 is grounded to GND through a TVS tube D1;
the machine room side protection unit comprises piezoresistors R3 and R4, power inductors L5, L6, L7, a DC blocking capacitor C3, a gas discharge tube G2 and a TVS tube D3; one end of the piezoresistor R3 is connected with the output end of the second attenuation matching circuit, the other end of the piezoresistor R3 is connected with the second connector through a blocking capacitor C3 and a piezoresistor R4, a power inductor L5, a power inductor L6 and a power inductor L7 are sequentially connected in series and then connected in parallel with the blocking capacitor C3, a node between the power inductor L5 and the power inductor L6 is grounded GND through a TVS tube D3, and a node between the power inductor L6 and the power inductor L7 is grounded GND through a gas discharge tube G2.
Further, the feeding unit comprises a capacitor C2, an inductor L4 and a TVS tube D2; one end of a capacitor C2 is connected with a resistor R2 in the antenna side protection unit, the other end of the capacitor C2 is connected with the input end of the first attenuation matching circuit, a node between a capacitor C2 and the resistor R2 is connected with a DC power supply, and a node between the capacitor C2 and the first attenuation matching circuit is grounded GND through a TVS tube D2.
Furthermore, the broadband radio frequency laser carries out electro-optical conversion in an intensity modulation mode, and the modulation wavelength is 1310 mm.
Further, the optical fiber is a single mode optical fiber.
Furthermore, the antenna side equipment and the machine room side equipment both adopt an alternating current and direct current double power supply mode.
Furthermore, the output end of the antenna side equipment and the input end of the machine room side equipment are both externally provided with a photoelectric hybrid cable interface, and the photoelectric hybrid cable interface is designed in an IP67 form.
Furthermore, the interface of the photoelectric hybrid cable adopts a PG head.
Furthermore, the antenna side equipment and the machine room side equipment are both provided with a case, and the outside of the case is subjected to paint spraying treatment; the chassis is externally provided with a grounding terminal, the interior of the chassis is provided with an inverted triangular grounding area, the grounding terminal penetrates through the chassis shell and is fixedly connected with the inverted triangular grounding area, the inverted triangular grounding area is welded with the interior of the chassis, and the grounding terminal is provided with a grounding nut.
Due to the adoption of the technical scheme, the invention has the following beneficial effects: the GLONASS satellite navigation signal remote system provided by the invention has the advantages of low cost and strong anti-interference capability, and by arranging the antenna side equipment and the machine room side equipment, the excellent characteristic of optical signal propagation is repeatedly utilized, so that the transmission distance of GLONASS satellite navigation signals from an antenna to a base station is expanded, and the long-distance transmission of the navigation signals is realized; the satellite navigation signal can still be accurately received and processed by the base station after being remotely transmitted in a complex electromagnetic environment; the interface protection function is realized, lightning stroke and surge signals can be isolated, and potential safety hazards caused by the lightning stroke and the surge signals are avoided being transmitted to a base station.
Drawings
FIG. 1 is a schematic diagram of the system of the present invention;
FIG. 2 is a schematic diagram of an antenna-side device structure of the system of the present invention;
FIG. 3 is a schematic diagram of a structure of equipment on the machine room side of the system of the present invention;
FIG. 4 is a schematic diagram showing the appearance of the antenna side equipment and the machine room side equipment chassis of the system of the present invention;
fig. 5 is a schematic diagram of a grounding mode of the antenna side equipment and the machine room side equipment chassis of the system of the invention.
In the figure: 1. a first connector; 2. an antenna side device; 3. an optical fiber; 4. equipment on the machine room side; 5. a second connector; 6. a chassis; 2-1, an antenna side protection unit; 2-2, a feed unit; 2-3, a first attenuation matching circuit; 2-4, broadband radio frequency laser; 4-1, broadband radio frequency light detector; 4-2, a second attenuation matching circuit; 4-3, a machine room side protection unit; 6-1, a ground terminal; 6-2, an inverted triangular grounding area; 6-3 and a grounding nut.
Detailed Description
The present invention will be explained in detail by the following examples, which are intended to protect all technical improvements within the scope of the present invention and are not limited thereto.
As shown in fig. 1 to 5, a zoom-out system suitable for GLONASS satellite navigation signals includes a first connector 1, an antenna-side device 2, an optical fiber 3, a machine-room-side device 4, and a second connector 5; the optical fiber 3 used in the system is a single mode fiber.
The input end of the antenna side equipment 2 is connected with an antenna for receiving GLONASS satellite navigation signals through the first connector 1 and the radio frequency cable, and is used for receiving the GLONASS satellite navigation signals; the output end of the antenna side equipment 2 is connected with the input end of the machine room side equipment 4 through an optical fiber 3, the antenna side equipment 2 converts the received GLONASS satellite navigation radio frequency signal into an optical signal, and the optical signal is transmitted to the machine room side equipment 4 through the optical fiber 3; the output end of the equipment 4 at the machine room side is connected with the communication base station through a second connector 5 and a radio frequency cable, and the equipment 4 at the machine room side converts the GLONASS satellite navigation optical signals into radio frequency signals again and transmits the radio frequency signals to the communication base station for subsequent processing; the characteristics of high optical fiber transmission quality, no electromagnetic interference, good confidentiality and long transmission distance are utilized to realize the long-distance transmission of the GLONASS satellite navigation signals.
The antenna side equipment 2 comprises an antenna side protection unit 2-1, a feed unit 2-2, a first attenuation matching circuit 2-3 and a broadband radio frequency laser 2-4 which are connected in sequence; the input end of the antenna side protection unit 2-1 is connected with the first connector 1, and the output end of the broadband radio frequency laser 2-4 is connected with the optical fiber 3, as shown in fig. 2; the broadband radio frequency laser 2-4 carries out electro-optical conversion on the GLONASS navigation signals in an intensity modulation mode, and the modulation wavelength is 1310 mm; in order to ensure that the received GLONASS navigation signals are subjected to non-compression transmission after being modulated by the broadband radio frequency lasers 2-4 so as to prevent the transmission signals from being transmitted linearly, the antenna side equipment 2 does not perform power amplification processing when receiving the GLONASS navigation signals, and the matching between the input and the output of the signals is realized through the first attenuation matching circuits 2-3.
The antenna side protection unit 2-1 is used for lightning protection and surge interference resistance of antenna side equipment and comprises piezoresistors R1 and R2, power inductors L1, L2 and L3, a DC blocking capacitor C1, a gas discharge tube G1 and a TVS tube D1; one end of a piezoresistor R1 is connected with the first connector 1, the other end of the piezoresistor R1 is connected with a piezoresistor R2 through a blocking capacitor C1, a power inductor L1, a power inductor L2 and a power inductor L3 are sequentially connected in series and then connected with a blocking capacitor C1 in parallel, a node between the power inductors L1 and L2 is connected to a ground GND through a gas discharge tube G1, and a node between the power inductors L2 and L3 is connected to the GND through a TVS tube D1.
The feeding unit 2-2 is used for realizing a feeding function for the uplink antenna and completing transmission of navigation radio frequency signals, and comprises a capacitor C2, an inductor L4 and a TVS tube D2; one end of a capacitor C2 is connected with a resistor R2 in the antenna side protection unit 2-1, the other end of the capacitor C2 is connected with the input end of a first attenuation matching circuit 2-3, a node between a capacitor C2 and the resistor R2 is connected with a DC power supply, and a node between the capacitor C2 and the first attenuation matching circuit 2-32-3 is grounded GND through a TVS tube D2; the inductor L4 is used for throttling the accessed navigation radio frequency signal to enter the DC power supply part, the capacitor C2 is used for cutting off the DC power supply current from flowing into the navigation radio frequency signal transmission path, and the TVS tube is used for isolating the pulse and surge signals leaked from the antenna side protection unit 2-1, thereby further protecting the first attenuation matching circuit 2-3 and the following broadband radio frequency laser 2-4.
The equipment 4 on the machine room side comprises a broadband radio frequency photodetector 4-1, a second attenuation matching circuit 4-2 and a machine room side protection unit 4-3 which are connected in sequence; the input end of the broadband radio frequency photodetector 4-1 is connected with the optical fiber, and the output end of the machine room side protection unit 4-3 is connected with the second connector 5, as shown in fig. 3; the broadband RF optical detector 4-1 converts the GLONASS navigation optical signals back into RF signals.
The machine room side protection unit 4-3 comprises piezoresistors R3 and R4, power inductors L5, L6, L7, a DC blocking capacitor C3, a gas discharge tube G2 and a TVS tube D3; one end of a piezoresistor R3 is connected with the output end of the second attenuation matching circuit 4-2, the other end of the piezoresistor R3 is connected with the second connector 5 through a blocking capacitor C3 and a piezoresistor R4, a power inductor L5, a power inductor L6 and a power inductor L7 are sequentially connected in series and then connected with the blocking capacitor C3 in parallel, a node between the power inductor L5 and the power inductor L6 is grounded through a TVS tube D3, and a node between the power inductor L6 and the power inductor L7 is grounded GND through a gas discharge tube G2.
The system is provided with an antenna side protection unit 2-1 and a machine room side protection unit 4-3 for lightning protection and surge interference resistance in the antenna side equipment 2 and the machine room side equipment 4 respectively, so that the reliability and stability of the system work are improved; the two protection units are similar in structure and function: the piezoresistor is mainly used for sensing lightning signals and carrying out port matching; the power inductor is used for controlling lightning and surge signals and simultaneously carrying out feed transmission; the gas discharge tube is used for releasing high-voltage lightning and surge signals; the TVS tube plays a secondary protection role for surge signals.
The antenna side equipment 2 and the machine room side equipment 4 both adopt an alternating current and direct current double power supply mode, alternating current adopts 85-305V commercial power, and direct current adopts-18-75V direct current; the output end of the antenna side equipment 2 and the input end of the machine room side equipment 4 are both provided with photoelectric hybrid cable interfaces outwards for transmitting optical signals and direct current power supply signals, so that the multi-scene use is facilitated, the photoelectric hybrid cable interfaces are designed in an IP67 mode, and when no direct current power supply exists in the external environment, the power can be supplied through the photoelectric hybrid cable; the interface of the photoelectric hybrid cable adopts a PG head, which plays the roles of water resistance, dust resistance and vibration resistance, so that the system is suitable for operation in outdoor places.
The antenna side equipment 2 and the machine room side equipment 4 are both provided with the chassis 6 for placing the main bodies of the antenna side equipment 2 and the machine room side equipment 4, so that the carrying, installation and connection of the antenna side equipment 2 and the machine room side equipment 4 are facilitated, as shown in fig. 4; the exterior of the case 6 is painted for preventing the case 6 from being corroded by water vapor in the air; the external grounding form of the case 6 is shown in fig. 5, a grounding terminal 6-1 is arranged outside the case 6, an inverted triangle grounding area 6-2 is arranged inside the case 6, the grounding terminal 6-1 penetrates through the case shell of the case 6 and is fixedly connected with the inverted triangle grounding area 6-2, the inverted triangle grounding area 6-2 is welded with the inside of the case 6, and a grounding nut 6-3 is arranged on the grounding terminal 6-1, so that good grounding of the system is ensured; the side surface of the case (6) of the antenna side equipment (2) is externally provided with a direct current/alternating current power supply input end, a photoelectric hybrid interface and a GLONASS navigation signal input end which correspond to each port of the antenna side equipment (2), and the side surface of the case (6) of the machine room side equipment (4) is externally provided with a direct current/alternating current power supply input end, a photoelectric hybrid interface and a GLONASS navigation signal output end which correspond to each port of the machine room side equipment (4).
The present invention is not described in detail in the prior art.
Claims (10)
1. A zoom-out system suitable for GLONASS satellite navigation signals is characterized in that: the optical fiber connector comprises a first connector (1), antenna side equipment (2), an optical fiber (3), machine room side equipment (4) and a second connector (5); the input end of the antenna side equipment (2) is connected with an antenna for receiving GLONASS satellite navigation signals through a first connector (1) and a radio frequency cable, the output end of the antenna side equipment (2) is connected with the input end of the machine room side equipment (4) through an optical fiber (3), and the output end of the machine room side equipment (4) is connected with a communication base station through a second connector (5) and the radio frequency cable;
the antenna side equipment (2) comprises an antenna side protection unit (2-1), a feed unit (2-2), a first attenuation matching circuit (2-3) and a broadband radio frequency laser (2-4) which are connected in sequence; the input end of the antenna side protection unit (2-1) is connected with the first connector (1), and the output end of the broadband radio frequency laser (2-4) is connected with the optical fiber (3);
the equipment (4) on the machine room side comprises a broadband radio frequency photodetector (4-1), a second attenuation matching circuit (4-2) and a machine room side protection unit (4-3) which are connected in sequence; the input end of the broadband radio frequency optical detector (4-1) is connected with the optical fiber (3), and the output end of the machine room side protection unit (4-3) is connected with the second connector (5).
2. The system of claim 1, wherein the system is further adapted for GLONASS satellite navigation signals, and further comprising: the antenna side protection unit (2-1) comprises piezoresistors R1 and R2, power inductors L1, L2 and L3, a DC blocking capacitor C1, a gas discharge tube G1 and a TVS tube D1; one end of the piezoresistor R1 is connected with the first connector (1), the other end of the piezoresistor R1 is connected with the piezoresistor R2 through a blocking capacitor C1, a power inductor L1, a power inductor L2 and a power inductor L3 are sequentially connected in series and then connected in parallel with the blocking capacitor C1, a node between the power inductor L1 and the power inductor L2 is grounded GND through a gas discharge tube G1, and a node between the power inductor L2 and the power inductor L3 is grounded GND through a TVS tube D1;
the machine room side protection unit (4-3) comprises piezoresistors R3 and R4, power inductors L5, L6 and L7, a DC blocking capacitor C3, a gas discharge tube G2 and a TVS tube D3; one end of the piezoresistor R3 is connected with the output end of the second attenuation matching circuit (4-2), the other end of the piezoresistor R3 is connected with the second connector (5) through a blocking capacitor C3 and a piezoresistor R4, a power inductor L5, a power inductor L6 and a power inductor L7 are sequentially connected in series and then connected with the blocking capacitor C3 in parallel, a node between the power inductor L5 and the power inductor L6 is grounded GND through a TVS tube D3, and a node between the power inductor L6 and the power inductor L7 is grounded GND through a gas discharge tube G2.
3. The system of claim 2, wherein the system is further adapted to receive GLONASS satellite navigation signals, and further comprising: the feed unit (2-2) comprises a capacitor C2, an inductor L4 and a TVS tube D2; one end of a capacitor C2 is connected with a resistor R2 in the antenna side protection unit (2-1), the other end of the capacitor C2 is connected with the input end of a first attenuation matching circuit (2-3), a node between a capacitor C2 and the resistor R2 is connected with a DC power supply, and a node between a capacitor C2 and the first attenuation matching circuit (2-3) is grounded GND through a TVS tube D2.
4. The system of claim 3, wherein the zoom-out system is further adapted to receive GLONASS satellite navigation signals: the broadband radio frequency laser (2-4) carries out electro-optical conversion in an intensity modulation mode, and the modulation wavelength is 1310 mm.
5. The system of claim 1, wherein the system is further adapted for GLONASS satellite navigation signals, and further comprising: the optical fiber (3) is a single mode optical fiber.
6. The system of claim 1, wherein the system is further adapted for GLONASS satellite navigation signals, and further comprising: and the antenna side equipment (2) and the machine room side equipment (4) both adopt an alternating current and direct current double power supply mode.
7. The system of claim 7, wherein the zoom-out system is adapted for GLONASS satellite navigation signals, and further comprises: the output end of the antenna side equipment (2) and the input end of the machine room side equipment (4) are both externally provided with a photoelectric hybrid cable interface, and the photoelectric hybrid cable interface is designed in an IP67 form.
8. The system of claim 8, wherein the zoom-out system is adapted for GLONASS satellite navigation signals, and further comprises: the photoelectric hybrid cable interface adopts a PG head.
9. The system of claim 1, wherein the system is further adapted for GLONASS satellite navigation signals, and further comprising: the antenna side equipment (2) and the machine room side equipment (4) are both provided with a case (6), and the outside of the case (6) is subjected to paint spraying treatment; the external of the case (6) is provided with a grounding terminal (6-1), the internal of the case is provided with an inverted triangle grounding area (6-2), the grounding terminal (6-1) penetrates through the case shell of the case (6) and is fixedly connected with the inverted triangle grounding area (6-2), the inverted triangle grounding area (6-2) is welded with the internal of the case (6), and the grounding terminal (6-1) is provided with a grounding nut (6-3).
10. The system of claim 1, wherein the system is further adapted for GLONASS satellite navigation signals, and further comprising: the side surface of the case (6) of the antenna side equipment (2) is externally provided with a direct current/alternating current power supply input end, a photoelectric hybrid interface and a GLONASS navigation signal input end which correspond to each port of the antenna side equipment (2), and the side surface of the case (6) of the machine room side equipment (4) is externally provided with a direct current/alternating current power supply input end, a photoelectric hybrid interface and a GLONASS navigation signal output end which correspond to each port of the machine room side equipment (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911288977.7A CN111123296B (en) | 2019-12-13 | 2019-12-13 | Remote system suitable for GLONASS satellite navigation signals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911288977.7A CN111123296B (en) | 2019-12-13 | 2019-12-13 | Remote system suitable for GLONASS satellite navigation signals |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111123296A true CN111123296A (en) | 2020-05-08 |
| CN111123296B CN111123296B (en) | 2022-03-15 |
Family
ID=70498870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911288977.7A Active CN111123296B (en) | 2019-12-13 | 2019-12-13 | Remote system suitable for GLONASS satellite navigation signals |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111123296B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203014790U (en) * | 2012-12-26 | 2013-06-19 | 北京遥测技术研究所 | Signal splitter for satellite navigation receivers |
| CN104333334A (en) * | 2014-10-08 | 2015-02-04 | 中国电子科技集团公司第五十四研究所 | Broadband and low-noise radio frequency amplifier of satellite navigation aviation enhancing system and transmission device |
| US20170146662A1 (en) * | 2013-02-05 | 2017-05-25 | Dali Systems Co. Ltd. | Feedback based indoor localization using digital off-air access units |
| CN110069011A (en) * | 2019-04-26 | 2019-07-30 | 南京华苏科技有限公司 | Fiber optic stretch based on BD and GPS concentrates time dissemination system and time service method |
-
2019
- 2019-12-13 CN CN201911288977.7A patent/CN111123296B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203014790U (en) * | 2012-12-26 | 2013-06-19 | 北京遥测技术研究所 | Signal splitter for satellite navigation receivers |
| US20170146662A1 (en) * | 2013-02-05 | 2017-05-25 | Dali Systems Co. Ltd. | Feedback based indoor localization using digital off-air access units |
| CN104333334A (en) * | 2014-10-08 | 2015-02-04 | 中国电子科技集团公司第五十四研究所 | Broadband and low-noise radio frequency amplifier of satellite navigation aviation enhancing system and transmission device |
| CN110069011A (en) * | 2019-04-26 | 2019-07-30 | 南京华苏科技有限公司 | Fiber optic stretch based on BD and GPS concentrates time dissemination system and time service method |
Non-Patent Citations (2)
| Title |
|---|
| 周祖望等: "GPS拉远技术及在城市轨道交通行业的应用", 《移动通信》 * |
| 郭占涛: "基站射频信号拉远处理方法的研究", 《电脑与电信》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111123296B (en) | 2022-03-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20020002040A1 (en) | Method and apparatus for interfacing RF signals to medium voltage power lines | |
| CN104333334B (en) | Satellite navigation aviation strengthening system broadband low noise radio frequency amplifier and transmitting device | |
| CN111123297B (en) | Remote system suitable for Beidou satellite navigation signals | |
| CN107864018A (en) | A kind of GPS digital optical fiber direct stations of high reliability railway applications | |
| CN111123296B (en) | Remote system suitable for GLONASS satellite navigation signals | |
| CN214011508U (en) | Solid-state integrated airborne meteorological imaging radar system | |
| CN111399003B (en) | Remote system of full-band satellite navigation signal | |
| CN107070528A (en) | The GPS optical fiber repeaters of high reliability railway applications | |
| CN103501204A (en) | X-waveband output power telemetry collecting device | |
| CN212572562U (en) | Photoelectric radio frequency feeder line component applied to uplink communication link | |
| CN214544308U (en) | Power line carrier coupling device | |
| CN207460188U (en) | A kind of GPS digital optical fiber direct stations of high reliability railway applications | |
| CN207460193U (en) | A kind of GPS digital optical fiber direct stations of railway applications | |
| CN111404610B (en) | Remote system of satellite navigation signal | |
| CN110855325B (en) | Power line HPLC impedance transformation self-adaptive control method and device | |
| CN207835471U (en) | High-power high-frequency signal interference instrument | |
| CN105842658A (en) | Aviation radio interference signal direction finding system | |
| CN207460186U (en) | A kind of GPS digital optic-fiber repeater near-end machines of high reliability railway applications | |
| CN207460187U (en) | A kind of GPS digital optical fiber direct station remote terminations of high reliability railway applications | |
| CN111884723B (en) | Photoelectric radio frequency feeder line assembly applied to uplink communication link | |
| CN205029337U (en) | Protector for antenna feed system | |
| CN206313773U (en) | The GPS optical fiber repeater far-end machines of railway applications | |
| CN213342282U (en) | Low-power consumption three-dimensional monitoring data chain | |
| CN219875955U (en) | Remote intelligent meter reading device for electric power | |
| CN206620127U (en) | The GPS optical fiber repeater far-end machines of high reliability railway applications |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221026 Address after: 201100 floor 10, building 5, No. 525, Yuanjiang Road, Minhang District, Shanghai Patentee after: AVIC Optoelectronics (Shanghai) Co.,Ltd. Address before: 471023 No.10 Zhoushan Road, high tech Zone, Luoyang City, Henan Province Patentee before: AVIC JONHON OPTRONIC TECHNOLOGY Co.,Ltd. |