CN212752304U

CN212752304U - Function reconfigurable radar data interface networking conversion terminal

Info

Publication number: CN212752304U
Application number: CN202022144046.4U
Authority: CN
Inventors: 吴桐; 张锦春; 杨昱; 祁世民; 崔博; 黄旭东; 夏斌; 杨正洪
Original assignee: Unit 63893 Of Pla
Current assignee: Unit 63893 Of Pla
Priority date: 2020-09-27
Filing date: 2020-09-27
Publication date: 2021-03-19
Anticipated expiration: 2030-09-27

Abstract

A radar data interface networking conversion terminal with reconfigurable functions relates to the technical field of information acquisition and transmission, and comprises a processor unit, a power supply unit, a level conversion unit, a time service unit, an Ethernet control unit and a display control unit, wherein the power supply unit is respectively connected with the processor unit, the level conversion unit, the time service unit, the Ethernet control unit and the display control unit through circuits; the utility model has the characteristics of it is miniaturized, low-power consumption, high reliability, have the advantage that pin resource is abundant, the time sequence control precision is high moreover, realize the purpose of function reconsitution, have better commonality.

Description

Function reconfigurable radar data interface networking conversion terminal

Technical Field

The utility model belongs to the technical field of information acquisition transmission technique and specifically relates to a radar data interface networking conversion terminal that function is reconfigurable is related to.

Background

It is known that in a target range equipment identification or technical verification test, a radar network is sometimes constructed by a plurality of radars, and a radar data interface is required to have network output capability. However, a large number of old-model radars only have serial data output interfaces, do not have network interfaces, and even have non-standard data interfaces, so that the old-model radars cannot be directly connected to a test IP network for test tasks. The general networked reconstruction method aims at specific equipment, reconstruction is carried out according to an interface level standard and a protocol specification, no universality exists, and the reconstruction workload is very large when the number of radar models is large.

Some data frames output by radars have incomplete time information, which is not beneficial to data sharing, and a computer needs to supplement the time information completely in real time to forward the time information, so that hardware resource waste is caused.

Different test networks have different data packet format protocols, and when one radar provides service for a plurality of test networks at the same time, corresponding data packets need to be provided for different destination IP addresses.

Disclosure of Invention

In order to overcome not enough in the background art, the utility model discloses a radar data interface networking conversion terminal that function reconfigurable.

In order to realize the purpose, the utility model adopts the following technical scheme:

a radar data interface networking conversion terminal with reconfigurable functions comprises a processor unit, a power supply unit, a level conversion unit, a time service unit, an Ethernet control unit and a display control unit, wherein the power supply unit is respectively connected with the processor unit, the level conversion unit, the time service unit, the Ethernet control unit and the display control unit through circuits;

the internal function module of the processor unit comprises a radar data acquisition module, a time generation module, a data processing module, a network data transmission module and a liquid crystal screen control module, the radar data acquisition module receives and analyzes radar data, the time service unit is connected with the time generation module through a serial port, the time generation module receives a message and a 1PPS (pulse per second) signal output by the time service unit, the liquid crystal screen control module is interactively connected with a touch liquid crystal screen, the radar data acquisition module, the time generation module and the liquid crystal screen control module are respectively connected with the data processing module through signals, the data processing module is connected with the Ethernet control unit through the network data transmission module through signals, and the data processing module is connected with a flash memory through signals.

The reconfigurable radar data interface networking conversion terminal has the advantages that the FPGA chip is arranged in the processor unit, the EP4CE6E22C8 of Intel corporation is selected, the configuration chip adopts EPCS8, and the flash chip adopts SST25VF032B (SPI interface, capacity 32 Mbit) of SST corporation and 50MHz crystal oscillator.

The radar data interface networking conversion terminal with reconfigurable functions adopts a UM220-IV NL Beidou/GPS dual-system navigation/time service module communicated with a core satellite.

The radar data interface networking conversion terminal with reconfigurable functions is characterized in that a W5500 full-hardware TCP/IP Ethernet control chip of WIZnet company is selected as a main chip of an Ethernet control unit.

The radar data interface networking conversion terminal with reconfigurable functions selects a 3.5-inch serial port touch liquid crystal screen as a display control unit.

Since the technical scheme is used, the utility model discloses following beneficial effect has:

the utility model discloses a radar data interface networking conversion terminal that function reconfigurable, this terminal can connect the data interface of different specifications, is applicable to different radar equipment; the high-precision time scale can be provided, and complete time information is provided for radar data; the function of customizing the data packet format for different IP addresses simultaneously is provided, and the requirements of multiple parties can be met simultaneously; the utility model has the characteristics of it is miniaturized, low-power consumption, high reliability, have pin resource abundance, advantage that the sequential control precision is high moreover, can modify IO pin function and module code in FPGA under the prerequisite that does not change hardware architecture, just can insert and parse the radar data interface of different models, realize the purpose of function reconstruction, have better commonality.

Drawings

Fig. 1 is a block diagram of the hardware components of the conversion terminal of the present invention;

fig. 2 is a functional block diagram of the FPGA controller of the present invention.

Detailed Description

The invention will be explained in more detail by the following examples, which disclose the invention and are intended to protect all technical improvements within the scope of the invention.

The radar data interface networked conversion terminal with reconfigurable functions, which is described in conjunction with fig. 1-2, includes a processor unit, a power supply unit, a level conversion unit, a time service unit, an ethernet control unit and a display control unit, wherein the power supply unit is respectively connected with the processor unit, the level conversion unit, the time service unit, the ethernet control unit and the display control unit through circuits, the processor unit is respectively connected with the power supply unit, the level conversion unit, the time service unit, the ethernet control unit and the display control unit through circuits, the level conversion unit is connected with a radar interface, and the ethernet control unit outputs through a network;

the internal functional module of the processor unit comprises a radar data acquisition module, a time generation module, a data processing module, a network data transmission module and a liquid crystal screen control module, the radar data acquisition module receives and analyzes radar data, the radar data acquisition module, the time generation module and the liquid crystal screen control module are respectively in signal connection with the data processing module, the data processing module transmits the processed data to a W5500 chip of the Ethernet control unit through a network data transmission module to carry out TCP/IP protocol configuration, and the data processing module is in signal connection with a flash memory; the data processing module completes data processing of network data packets and liquid crystal display, the network data sending module performs TCP/IP protocol configuration on a W5500 chip of the Ethernet control unit and controls network data, and the liquid crystal screen control module realizes touch response of the FPGA to the liquid crystal screen, radar data display and IP address management.

Implement reconfigurable radar data interface networking conversion terminal, electrical unit passes through power chip and produces 1.2V, 2.5V, 3.3V level, for the processor unit, the time service unit, the ethernet control unit, the display control unit, level conversion unit provides the power, processor unit and time service unit, the ethernet control unit, the display control unit, level conversion unit, electrical unit passes through the signal line connection, level conversion unit passes through MAX3232, the diode, the triode, resistance network realizes the conversion between radar interface level and FPGA's IO pin level. After the data of radar output are converted into LvTTL level through the level conversion unit, the radar data acquisition module of FPGA can be connected, the data acquisition module mainly realizes the receipt of radar data, if the radar has standard serial data output, can directly realize the receipt of serial communication protocol in FPGA, if the radar does not possess standard data communication interface, then need to generate control time sequence in FPGA according to radar data output time sequence control rule, and from the frame-by-frame reading data on the radar data bus, then put the data received in the register, give the data processing module to handle. The time generation module receives the $ GNRMC message and the 1PPS signal sent by the time service unit UM220-IV NL through a serial port, extracts the year, month, day, hour, minute and second and the positioning state mark from the $ GNRMC, and generates a time code at any moment through crystal oscillator frequency division under the synchronization of the 1PPS signal. The data processing module converts the measured data from quantized integer data into floating point data; adding a time code generated by a time generation module into the received radar data, recombining the data according to the requirements of network data packets, and if various network data packet requirements exist, simultaneously generating a plurality of data packets and sending the data packets to a network data sending module; and the data processing module processes the touch signal of the liquid crystal screen, displays the processing result through a screen, and performs validity check on the IP address, the port number and the subnet mask modified by the user through the liquid crystal screen. When the network data sending module is powered on, the local IP, the destination IP address, the port number and the like in the flash memory are read, and TCP/IP protocol configuration is carried out on a W5500 chip register; when a user modifies an IP address, a port number and a subnet mask in the working process, storing the IP address, the port number and the subnet mask in a flash memory in time, and reconfiguring a W5500 chip register; when receiving the data packet from the data processing module, the data packet is sent to the W5500 to complete the TCP/IP protocol output, and the terminal can simultaneously output 4 paths of IP addresses at most. The liquid crystal screen control module realizes touch response and radar data display on the liquid crystal screen; when a touch signal is detected on the liquid crystal screen, analyzing the touch signal, and skipping a display page according to the signal type, wherein the display page comprises a radar data display page, a 4-way IP address setting page, a 4-way port number setting page, a help page and the like; if the user modifies the IP address or the port number, firstly, the legality detection is carried out, and only the correct value is input, the updating is allowed to be carried out into the flash and the W5500; when one frame of radar data is received, sending the distance, the direction, the pitching data, the time and the positioning state to a liquid crystal display for displaying; when the radar frame rate is too high, the display data is refreshed too fast, and switching can be made by high/low speed mode.

The part of the utility model not detailed is prior art.

The embodiments selected for the purpose of disclosing the invention, are presently considered to be suitable, it being understood, however, that the invention is intended to cover all variations and modifications of the embodiments, which fall within the scope of the concept and the utility model.

Claims

1. The utility model provides a radar data interface networking conversion terminal that function reconfigurable, includes processor element, power supply unit, level conversion unit, time service unit, ethernet control unit and demonstration control unit, characterized by: the power supply unit is respectively connected with the processor unit, the level conversion unit, the time service unit, the Ethernet control unit and the display control unit through circuits, the processor unit is respectively connected with the power supply unit, the level conversion unit, the time service unit, the Ethernet control unit and the display control unit through circuits, the level conversion unit is connected with the radar interface, and the Ethernet control unit outputs data through a network;

2. The functionally reconfigurable radar data interface networked conversion terminal of claim 1, wherein: the processor unit is internally provided with an FPGA chip, an EP4CE6E22C8 of Intel company is selected, an EPCS8 is adopted as a configuration chip, an SST25VF032B of SST company, an SPI interface, 32Mbit capacity and 50MHz crystal oscillator are adopted as a flash chip.

3. The functionally reconfigurable radar data interface networked conversion terminal of claim 1, wherein: the time service unit adopts a UM220-IV NL Beidou/GPS dual-system navigation/time service module communicated with a core satellite.

4. The functionally reconfigurable radar data interface networked conversion terminal of claim 1, wherein: the Ethernet control unit main chip selects a W5500 full hardware TCP/IP Ethernet control chip of WIZnet company.

5. The functionally reconfigurable radar data interface networked conversion terminal of claim 1, wherein: the display control unit selects a 3.5-inch serial port touch liquid crystal screen.