CN218679086U - Time service satellite signal optical fiber remote equipment - Google Patents
Time service satellite signal optical fiber remote equipment Download PDFInfo
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- CN218679086U CN218679086U CN202223199039.XU CN202223199039U CN218679086U CN 218679086 U CN218679086 U CN 218679086U CN 202223199039 U CN202223199039 U CN 202223199039U CN 218679086 U CN218679086 U CN 218679086U
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Abstract
A time service satellite signal optical fiber remote device comprises a remote host and a near-end host, wherein the near-end host is connected with the remote host through an optical cable; the near-end host comprises a radio frequency amplification circuit, a power supply circuit, an antenna signal detection circuit and a first radio frequency signal and optical signal conversion module; the radio frequency amplifying circuit is a double-frequency filter circuit, the power supply circuit is a double-power-supply input circuit and supplies power to the radio frequency amplifying circuit and the antenna signal detection circuit at the same time, and the first radio frequency amplifying circuit and the radio frequency signal are connected with the optical signal conversion module. The utility model discloses an optical fiber transmission, built-in wave filter and the optical module quantity of having increased has realized that the multi-star multifrequency is full-frequency and the full star is full-frequency from the design to and output interface can output analog signal but output digital signal again, near-end host computer and distal end host computer equipment total delay reduce to 40ns.
Description
Technical Field
The utility model belongs to the technical field of the time service satellite signal optic fibre is drawn far, in particular to time service satellite signal optic fibre equipment of drawing far.
Background
The time service satellite signal optical fiber remote device consists of a far-end host and a near-end host, wherein the far-end host is input at two ends, 1-8 optional optical fiber interfaces transmit signals to the near-end host through connecting optical fibers, and the satellite signals are directly simulated. The existing time service satellite signal optical fiber remote equipment has single communication channel and longer time delay due to the fact that a filter and an optical module of the existing time service satellite signal optical fiber remote equipment are single, and transmission distance is limited.
Disclosure of Invention
An object of the utility model is to provide a time service satellite signal optic fibre equipment of zooming out to solve above-mentioned problem.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a time service satellite signal optical fiber remote device comprises a remote host and a near-end host, wherein the near-end host is connected with the remote host through an optical cable;
the near-end host comprises a radio frequency amplification circuit, a power supply circuit, an antenna signal detection circuit and a first radio frequency signal and optical signal conversion module; the radio frequency amplifying circuit is a double-frequency filter circuit, the power supply circuit is a double-power-supply input circuit and supplies power to the radio frequency amplifying circuit and the antenna signal detection circuit at the same time, and the first radio frequency amplifying circuit and the radio frequency signal are connected with the optical signal conversion module.
Furthermore, the remote machine comprises a power circuit, an antenna signal detection circuit and a second radio frequency signal and optical signal conversion module, wherein the power circuit supplies power to the antenna signal detection circuit, and the second radio frequency signal and optical signal conversion module is connected with the first radio frequency amplification circuit and the radio frequency signal and optical signal conversion module.
Furthermore, the first radio frequency signal and optical signal conversion module converts a radio frequency signal into an optical signal to be output, and the second radio frequency signal and optical signal conversion module converts an optical signal into a radio frequency signal to be transmitted to the GPS receiving device.
Further, the radio frequency amplifying circuit comprises a multi-frequency combiner, a first amplifier, a filter circuit, a second amplifier, a lightning protection circuit and a power supply circuit; the multi-frequency combiner, the first amplifier, the filter circuit, the second amplifier and the lightning protection circuit are connected in sequence.
Furthermore, the near-end host and the far-end host comprise three interfaces, namely an RF IN interface, an RF OUT interface and a PC/APC interface.
Further, an optical cable is used for connecting the FC/APC port of the near-end host computer with the FC/APC port of the far-end host computer; the RF OUT port of the remote host is connected to the GPS receiving device using a cable.
Furthermore, the GPS receiving equipment is a Beidou/GPS double-satellite time service 8-port slave machine.
Furthermore, the near-end host computer and the far-end host computer are both connected with display screens, and the two antenna signal detection circuits are respectively connected with the display screens.
Compared with the prior art, the utility model discloses there is following technological effect:
the utility model discloses an optical fiber transmission, built-in wave filter and the optical module quantity of having increased has realized that the multi-star multifrequency is full-frequency and the full star is full-frequency from the design to and output interface can output analog signal but output digital signal again, near-end host computer and distal end host computer equipment total delay reduce to 40ns. The Beidou and GPS and GLONASS satellite signals are transmitted remotely, the theoretical maximum transmission distance can reach 30KM, and the transmission distance is in the range of 0-10KM, so that the base station can achieve good time service precision through time delay adjustment. The high standard requirements of the client on communication positioning and time service are met.
Drawings
Fig. 1 is a schematic block diagram of the time service satellite signal optical fiber remote device circuit of the present invention.
Fig. 2 is a schematic view of the connection mode of the time service satellite signal optical fiber remote device of the present invention.
Fig. 3 is an explanatory view of an interface of the time service satellite signal optical fiber remote device of the present invention.
In the figure:
(1) the light emission normal indicator light PD is not on when working normally, and the indicator light is on when no light signal is emitted;
(2) the power supply indicator light PWR and the power supply switch are powered normally and are always on green;
(3) the light receiving normal indicator light LD is not on when working normally, and the indicator light is on red when the light signal is not received;
(4) optical interface, FC/APC (round-head single-mode fiber);
(5) an RF-OUT outdoor satellite signal input port, an SMA connector;
(6) the RF-IN satellite signal output port and the SMA joint are connected to a next-stage slave computer satellite signal distribution unit with 8 ports;
(7) a device power switch;
power access terminal area: a 48V power interface with two power accesses and mutual backup;
(8) (9) a first-48V power interface terminal;
⑩、
a second path-48V power supply interface terminal;
Detailed Description
The invention is further described below with reference to the accompanying drawings:
a time service satellite signal optical fiber remote device comprises a remote host and a near-end host. The near-end machine comprises a radio frequency amplifying circuit, a power circuit, an antenna signal detection circuit and a radio frequency signal and optical signal conversion module; the radio frequency amplifying circuit is a double-frequency filter circuit, the power supply circuit is a double-power-supply input, and the radio frequency amplifying circuit and the radio frequency signal are connected with the optical signal conversion module; the remote machine comprises a power circuit, an antenna signal detection circuit and a radio frequency signal and optical signal conversion module,
the near-end machine and the far-end machine are provided with three interfaces, namely an RF IN port, an RF OUT port and a PC/APC port.
The near-end machine and the far-end machine are provided with display screens, and can display the antenna receiving condition and the antenna current condition.
The near-end machine and the far-end machine are provided with 5 indicator lamps which are respectively PD, PWR, LD, OK and LOCK indicator lamps.
The antenna detection circuit can detect without affecting the transmission of the signal of the antenna.
The near-end machine antenna is connected with the amplifying circuit, and an interface of the amplifying circuit is connected with the radio frequency signal and optical signal conversion module; the amplifying circuit comprises a multi-frequency combiner, a first amplifier, a filter circuit, a second amplifier, a lightning protection circuit and a power supply circuit; the multi-frequency combiner, the first amplifier, the filter circuit, the second amplifier and the lightning protection circuit are connected in sequence.
The near-end machine amplifying circuit is connected with the radio frequency signal and optical signal conversion module and converts the radio frequency signal into an optical signal to be output.
The remote machine converts the optical signals into radio frequency signals through the radio frequency signal and optical signal conversion module and transmits the radio frequency signals to the GPS receiving equipment.
The utility model discloses an optical fiber transmission realizes GPS L1 and L2, big dipper B1 and B2, GLONASS G1 and G2 (1166.0-1253.0 MHz and 1559.0-1578.0 MHz) and covers, and near-end host computer and far-end host computer total delay reduce to 40ns. The Beidou and GPS and GLONASS satellite signals are transmitted remotely, the theoretical maximum transmission distance can reach 30KM, and the transmission distance is in the range of 0-10KM, so that the base station can achieve good time service precision through time delay adjustment. The high standard requirements of the client on communication positioning and time service are met.
Connection description:
the first step is as follows: the antenna is connected to the RF IN port of the near-end host through a cable;
the second step is that: connecting the FC/APC port of the near-end host with the FC/APC port of the far-end host by using an optical cable;
the third step: an RF OUT port of a remote host is connected with an IN port of a Beidou/GPS double-satellite time service 8-port slave machine by using a cable;
the fourth step: any out port of the Beidou/GPS double-satellite time service 8-port slave machines is connected with time service equipment such as BBU (base band unit) by using a cable (if the need for division and multi-path is high, the 8-port slave machines can be continuously cascaded behind the 8-port slave machines, and at most two stages can be cascaded).
Indication lamp description:
five indicator lights are respectively a PD indicator light, a PWR indicator light, an LD indicator light, an OK indicator light and a LOCK indicator light;
PWR pilot lamp: the power supply indicator lamp is normally turned on in green after being electrified;
PD indicator lamp: receiving a light signal fault indicator lamp, not receiving a light signal or receiving a fault and lighting a red light, and normally receiving a signal and not lighting the fault lamp;
an LD indicator lamp: sending an optical signal fault indicator light, wherein the fault indicator light is not on when the optical signal is normally sent, and the optical signal sending fault indicator light is red;
an OK indicator light: the antenna current is normal or not, the indicating lamp is connected to the antenna, the antenna current is normally on green, and the indicating lamp is not connected with the antenna or the antenna current fault indicating lamp is not on;
LOCK pilot lamp: the time service information is locked or not, after the time service information is connected to the antenna, the star locking positioning is successful, the indicator lamp lights a green light, and the indicator lamp does not light when the star unlocking positioning is successful.
Display screen description: the screen displays a total of four pages.
Claims (8)
1. A time service satellite signal optical fiber remote device is characterized by comprising a far-end host and a near-end host, wherein the near-end host is connected with the far-end host through an optical cable;
the near-end host comprises a radio frequency amplification circuit, a power supply circuit, an antenna signal detection circuit and a first radio frequency signal and optical signal conversion module; the radio frequency amplifying circuit is a double-frequency filter circuit, the power supply circuit is a double-power-supply input circuit and supplies power to the radio frequency amplifying circuit and the antenna signal detection circuit at the same time, and the first radio frequency amplifying circuit and the radio frequency signal are connected with the optical signal conversion module.
2. The time service satellite signal optical fiber remote device according to claim 1, wherein the remote machine comprises a power circuit, an antenna signal detection circuit and a second radio frequency signal and optical signal conversion module, the power circuit supplies power to the antenna signal detection circuit, and the second radio frequency signal and optical signal conversion module is connected with the first radio frequency amplification circuit and the radio frequency signal and optical signal conversion module.
3. The time service satellite signal optical fiber remote device according to claim 1, wherein the first radio frequency signal and optical signal conversion module converts a radio frequency signal into an optical signal to be output, and the second radio frequency signal and optical signal conversion module converts an optical signal into a radio frequency signal to be output to the GPS receiving device.
4. The time service satellite signal optical fiber remote device according to claim 1, wherein the radio frequency amplification circuit comprises a multi-frequency combiner, a first amplifier, a filter circuit, a second amplifier, a lightning protection circuit and a power supply circuit; the multi-frequency combiner, the first amplifier, the filter circuit, the second amplifier and the lightning protection circuit are connected in sequence.
5. The time service satellite signal fiber optic pulling-OUT device according to claim 1, wherein the near-end host and the far-end host each include three interfaces, which are an RF IN port, an RF OUT port, and a PC/APC port.
6. The time service satellite signal optical fiber pulling-out equipment as claimed in claim 5, wherein an optical cable is used for connecting the FC/APC port of the near-end host computer with the FC/APC port of the far-end host computer; the RF OUT port of the remote host is connected to the GPS receiving device using a cable.
7. The time service satellite signal optical fiber remote device according to claim 6, wherein the GPS receiving device is a Beidou/GPS double star time service 8-port slave machine.
8. The time service satellite signal optical fiber pulling-out equipment as claimed in claim 1, wherein the near-end host and the far-end host are both connected with display screens, and the two antenna signal detection circuits are respectively connected with the display screens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223199039.XU CN218679086U (en) | 2022-11-29 | 2022-11-29 | Time service satellite signal optical fiber remote equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223199039.XU CN218679086U (en) | 2022-11-29 | 2022-11-29 | Time service satellite signal optical fiber remote equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218679086U true CN218679086U (en) | 2023-03-21 |
Family
ID=85541647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223199039.XU Active CN218679086U (en) | 2022-11-29 | 2022-11-29 | Time service satellite signal optical fiber remote equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218679086U (en) |
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2022
- 2022-11-29 CN CN202223199039.XU patent/CN218679086U/en active Active
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