CN210572760U

CN210572760U - GPS signal generator

Info

Publication number: CN210572760U
Application number: CN201921443746.4U
Authority: CN
Inventors: 李彦斌
Original assignee: Lanzhou Huatie Xinlian Technology Co Ltd
Current assignee: Lanzhou Huatie Xinlian Technology Co Ltd
Priority date: 2019-09-02
Filing date: 2019-09-02
Publication date: 2020-05-19
Anticipated expiration: 2029-09-02

Abstract

The utility model discloses a GPS signal generator, including radio frequency power amplifier, host computer and user application APP, user application APP's output is connected with programmable controller's input, and programmable controller carries analog signal into baseband processing DSP in, and baseband processing DSP's output is connected with the input of leading prefilter, and the output of leading prefilter is connected with the input of AD converter. The utility model discloses can simulate the formation to arbitrary GPS positional information of the world, all GPS receiving equipment can both normally discern and receive, especially to CIR equipment, can simulate the GPS positional information of arbitrary website, CIR equipment can both normally receive and discern, solve and verified whether communication equipment can normally switch between different websites, whether detectable satellite antenna has not hard up to this section physical link of host computer equipment, so both improved the work efficiency who changes CIR communication equipment, scientific verification CIR communication equipment's reliability again.

Description

GPS signal generator

Technical Field

The utility model relates to a GPS signal generator technical field specifically is GPS signal generator.

Background

In the existing bullet train parking garage, due to shielding and shielding of a building (roof), a plurality of bullet train parking garages do not have GPS signals, the existing solution is to erect an antenna outside the parking garage, introduce outdoor GPS signals into the interior, and then add a power amplifier and a power distributor on an introduced line to amplify and distribute the introduced signals to various places in the interior, and the solution has the defects that: 1. the construction cost and the construction cost are high, and the period is long; 2. lightning protection measures must be made; 3. cables and 220V power supplies need to be arranged indoors, so that fire hazards are increased; 4. the cables need to be maintained and overhauled by manpower in the later period; 5. GPS signals of other stations than the current position cannot be provided, and for this reason we propose a GPS signal generator.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a GPS signal generator to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: GPS signal generator, including radio frequency power amplifier, host computer and user application APP, user application APP's output is connected with programmable controller's input, and in programmable controller carried analog signal into baseband processing DSP, baseband processing DSP's output is connected with the input of leading pre-filter, and the output of leading pre-filter is connected with the input of AD converter, in AD converter carried digital signal into digital front end, and the output of digital front end is connected with the input of host computer, the output of host computer is connected with high-speed ADC CDA's input, and in high-speed ADC CDA carried analog signal into radio frequency power amplifier.

Preferably, the programmable controller is a PLC controller, and two terminals of the programmable controller are connected with a power plug through a wire.

Preferably, each electronic component is placed in the external box body, and the length, width and height of the external box body are 230, 150 and 60 (mm).

Preferably, the external box body is further provided with a charging jack, a signal interface, a signal output port and an indicator light, the charging jack adopts 5v/2A direct current, the signal interface is a WIFI (wireless fidelity) or Ethernet interface, the transmission speed is 10-100Mbps, and the signal output port is an SMA/N-K interface.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the utility model discloses can simulate the formation to arbitrary GPS positional information of the world, all GPS receiving equipment can both normally discern and receive, especially to CIR equipment, can simulate the GPS positional information of arbitrary website, CIR equipment can both normally receive and discern, solve and verified whether communication equipment can normally switch between different websites, whether detectable satellite antenna has not hard up to this section physical link of host computer equipment, so both improved the work efficiency who changes CIR communication equipment, scientific verification CIR communication equipment's reliability again.

Drawings

FIG. 1 is a schematic diagram of the system of the present invention;

FIG. 2 is a schematic diagram of the interface of the main chip of the present invention;

fig. 3 is a schematic diagram of the main chip pins of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the GPS signal generator, including radio frequency power amplifier, host computer and user application APP, the mobile phone scans the two-dimensional code, downloads and installs APP, the main interface after opening APP is an online height map, there are icons for setting various parameters below the main interface, and can set parameters such as longitude and latitude, altitude, time, and device transmitting power, and new GPS location information generation only needs "one key": when GPS position information needs to be generated, only a circle selection icon of a map is dragged to a destination point, then a position generation button is clicked, the APP can automatically identify the longitude and latitude of the destination point and can be recorded into the equipment in real time, therefore, all operations of the equipment for generating new GPS position information can be called 'one-key generation', the defect of complicated operation of precision equipment is avoided, the APP can ensure 1-10 pieces of position information, the position information of the 10 point positions can be freely switched by a user according to the needs, the daily operation information or maintenance records related to the daily operation information can be recorded into the mobile phone APP in real time according to logs, recorded data formats (PDF, word and Excel) can be automatically set, the user can also import the recorded data into a computer or upload the recorded data to a related detection platform in real time according to the needs (importing the detection platform requires a platform manufacturer to open a software interface for our party), thus, the 6S management of an operation workshop is convenient (the operation is recorded, the record can be inquired, and the event can be traced), the output end of a user application APP is connected with the input end of a programmable controller, the programmable controller is a PLC controller, two wiring ends of the programmable controller are connected with a power plug through wires, the programmable controller transmits an analog signal into a baseband processing DSP, the output end of the baseband processing DSP is connected with the input end of a pre-prefilter, the output end of the prefilter is connected with the input end of an A/D converter, the A/D converter transmits a digital signal into a digital front end, the output end of the digital front end is connected with the input end of an upper computer, the output end of the upper computer is connected with the input end of a high-speed ADC/CDA, the high-speed ADC/CDA transmits the analog signal into a radio frequency power amplifier, and the analog generation of any global GPS position information can be carried out, all GPS receiving equipment can normally recognize and receive, especially for CIR equipment, GPS position information of any site can be simulated, CIR equipment can normally receive and recognize, whether communication equipment can be normally switched among different sites or not is solved and verified, whether a physical link from a satellite antenna to host equipment is loosened or not can be detected, thus, the working efficiency of replacing the CIR communication equipment is improved, the reliability of the CIR communication equipment is scientifically verified, all electronic components are placed in the external box body, the length, width and height of the external box body are 230, 150 and 60 (mm), the external box body is also provided with a charging jack, a signal interface, a signal output port and an indicator light, the charging jack adopts 5v/2A direct current, the signal interface is WIFI or Ethernet interface, the transmission speed is 10-100Mbps, and the signal output port is an SMA/N-K interface.

When in use, the simulation generation can be carried out on any global GPS position information, all GPS receiving equipment can normally recognize and receive, particularly, for CIR equipment, the simulation generation can be carried out on the GPS position information of any site, the CIR equipment can normally receive and recognize, whether communication equipment can be normally switched between different sites or not is solved and verified, whether a physical link from a satellite antenna to host equipment is loosened or not is detected, thus the working efficiency of replacing the CIR communication equipment is improved, the reliability of the CIR communication equipment is scientifically verified, meanwhile, satellite navigation signals under high dynamic and static conditions can be simulated and generated, the satellite gating function is provided, a user can randomly combine and match satellites in various navigation systems according to needs, 24 channels are provided for generating C/A code signals on a GPS satellite L1 carrier wave, and the navigation signals of 24 GPS satellites can be simulated at most simultaneously, the simulator has a simulator real-time state display function, displays information such as the type, the number, the serial number, the pitch angle, the pseudo range, the health condition and the like of a satellite which is currently simulated to a user, displays a sky view and a receiver motion track view of a current on-line satellite to the user, has a radio frequency cable interface and a forwarding antenna interface, and can receive satellite simulation signals in a wireless mode or a wired mode.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

GPS signal generator, including radio frequency power amplifier, host computer and user application APP, its characterized in that: the utility model discloses a radio frequency amplifier, including user application APP, programmable controller, baseband processing DSP, AD converter, pre-filter, high-speed ADC CDA, the output of user application APP is connected with programmable controller's input, and programmable controller carries analog signal into in the baseband processing DSP, the output of baseband processing DSP is connected with pre-filter's input, and pre-filter's output is connected with the input of AD converter, in the AD converter carries digital signal into digital front end, and digital front end's output is connected with the input of host computer, the output of host computer is connected with high-speed ADC CDA's input, and in high-speed ADC CDA carries analog signal into radio frequency amplifier.
2. The GPS signal generator of claim 1, wherein: the programmable controller is a PLC controller, and two wiring terminals of the programmable controller are connected with a power plug through wires.
3. The GPS signal generator of claim 1, wherein: each electronic component is placed in the external box body, and the length, width and height of the external box body are 230, 150 and 60 (mm).
4. The GPS signal generator of claim 3, wherein: the external box body is also provided with a charging jack, a signal interface, a signal output port and an indicator light, the charging jack adopts 5v/2A direct current, the signal interface is a WIFI (wireless fidelity) or Ethernet interface, the transmission speed is 10-100Mbps, and the signal output port is an SMA/N-K interface.