Mix for automation design verification, test only measure and design

NI Che Zailei amounts to test system (VRTS) was the 76 car radar systems to 81 GHz to offer automation radar to measure with fraise imitate function. The engineer can use VRTS to check car hardware and software subsystem, include radar sensor, ADAS subsystem and embedded software. VRTS has agile fraise to create a function, but imitate the setting that all sorts of generating, etc of radar of help engineer test is advanced drive support system (of ADAS) embedded software. In addition, front of radio frequency of high-powered millimeter wave and PXI vector signal are sent and receive implement (VST) photograph is united in wedlock, can realize accurate RF to measure, help engineer is analysed and check beam. Accordingly, each level that the engineer can develop in ADAS and radar system, make a test to batch from research and development namely, all use identical measurement hardware.

 

VRTS is the one part that platform spends test and measurement technique, accordingly it measures hardware easily with other PXI compositive, test a system in order to make complete car. Check application to sensor confluence, the engineer is OK with its VRTS he measures hardware to combine and synchronous, with imitate is much at the same time kind of sensor of the type. Test system is in as hardware normally annulus (the one part that HIL) emulates, the act that passes imitate environment will check embedded software.

 

VRTS detailed is solved

VRTS is a kind modular system, can be in 77 with radar of 79 GHz car car radar is offerred to fraise is generated and measure a function inside wave band. The core of VRTS is PXI system, PXIe-5840 vector signal was included to send and receive inside implement with NI-5692 alterable defer generator (VDG) . These module and front of radio frequency of NI MmRH-3608 millimeter wave cooperate to use, can offer radio frequency port for radar sensor. Front of radio frequency of this millimeter wave still has the laser in be opposite, can ensure between radar DUT and front of test system radio frequency accurate alignment. If the graph is shown 1 times,typical test configures block diagram. A crucial component of VRTS is PXIe-5480 VST. This instrument provides two crucial functions for the system: Calibration radar is measured and fraise imitate. The engineer uses VST board carry FPGA, but the complex motion of imitate radar fraise. When imitate of executive radar fraise, VRTS is most but imitate 4 or more object. If fraise appears inside the 4 distances to 300m, be apart from resolution to arrive for 10cm 12cm, the distance is closer resolution is higher. Outside dividing a space, the user can install target radar in the trends in software sectional (RCS) and speed (Doppler effect) .

 

Graph 1. Typical VRTS configures block diagram

 

The radio frequency signal generator of VST and analyzer offer those who pass calibration to measure an outcome for test of automation radar sensor. Be based on this instrument, VRTS can help an engineer undertake all sorts of measurement, include direction of aerial beam radiate graph, complete to effective radiate power (EIRP) , phasic noise, spectrum has demodulation of modulation of signal of width of rate, beam, linear frequency modulation to wait. Mix fraise imitate measure functional volume at an organic whole, can decrease to always check time, and also mean you to need not buy the special test system that has these two kinds of functions respectively, can reduce instrument amount so, reduce production to check what what need to cover an area of a space then.

 

Of VRTS modular character makes NI allied partner but custom-built hardware configuration, come to choice accurate land satisfy the requirement of specific application.

 

Manufacturing test uses 9 slot system

To producing test application, VRTS is used a VST and most two VDG configuration, if pursue,2 are shown. This configuration support is generated most two remote radar fraise, and cover an area of area and cost to also keep the smallest. Production checks used VRTS to still have all radar to measure a function, include beam feature test, EIRP is measured and the function checks. Graph the systematic configuration of 2 includes:

·Box of chamfer of a PXIe-1078 9

·Much nucleus of a PXIe-8840 is embedded controller

·Signal of vector of a PXIe-5840 sends and receive appearance

·Generator of 2 NI-5692 alterable defer

 

Graph 2. Produce the VRTS configuration of the test

 

Use at the 18 slot system of test and verify, characteristic analysis and research and development

 

To advanced applying, the engineer can use box of PXIe-1085 18 chamfer to support generate reach roadblock of radar of 4 full range. This configuration includes two VST and 4 VDG, if pursue,3 are shown. No matter be to produce a test to use VRTS, still be the VRTS that advanced application needs, all can undertake expanding to other PXI box through expanding cable joins, in order to create roadblock of more imitate radar. Graph the systematic configuration of 3 includes:

·Box of chamfer of a PXIe-1085 18

·Controller of much nucleus of a PXIe-8840

·Signal of 2 PXIe-5840 vector sends and receive appearance

·Generator of 4 NI-5692 alterable defer

 

Ask an attention, graph the configuration of 3 still includes an empty PXI to insert groove, add more instrument with Yu Tian or control other PXI box. Applicable instrument includes power source, oscillograph, data to collect module of module, interface of CAN/ aether net to wait.
 

Graph 3. Advanced VRTS can create 4 radar roadblock at most

 

Option of front of millimeter wave radio frequency

Besides a variety of PXI configuration, VRTS still has option of front of many radio frequency, apply to send and receive cent buy and send and receive configuration of antenna of an organic whole. The reception that sends and receive the option that divide buy to have independence and emissive port and be as high as 50 DB send and receive segregation. And send and receive option of an organic whole to only a mixture signal sends and receive port, send and receive segregation highest amount to 30 DB. If the graph is shown 4 times,send and receive front of the radio frequency that divide buy.
 

Graph 4. Send and receive millimeter wave of the VRTS that divide buy implement radio frequency front (belt build and do not take a top)

 

Radar fraise imitate

The flexibility of VRTS can allow height of NI allied associate custom-built software uses a program, satisfy the requirement of specific application definitely with essence of life. The powerful figure that NI alliance partner can use LabVIEW and LabVIEW FPGA place to offer changes process designing environment (the graph is shown 5 times) , development arrives from independent fraise simulator the software application process of all sorts of dimensions such as system of imitate of complete function HIL. Use a program to these software, NI alliance partner can be based on API of rock-bottom VRTS hardware, use custom-built software to undertake to its the function increases and patulous.
 

 

Graph 5. Use LabVIEW and LabVIEW FPGA are measured from the definition and setting.

 

The fraise with agile NI generated a framework to offer a distinct advantage: New test increases to use when the engineer can change with demand happening in dependability standard exemple. For example, in involve embedded in the application that ADAS software checks, the software that the engineer can use NI alliance partner comes imitate drives commonly setting, if the graph is shown 6 times, include commutation of star design, driveway and object to pass through street. VRTS all can pass 3 crucial parameter to undertake controlling in the behavior of these 3 setting; Distance, speed and radar are sectional.

 

The engineer can undertake all sorts of configuration to VRTS, accord with a watch with imitate an all sorts of fraise that list a condition.
 

 

Express standard of 1.VRTS fraise imitate

 

Radar checks and measure

Besides fraise imitate, VRTS still can be mixed to radar sensor the system undertakes radio frequency is measured. The rock-bottom hardware control of NI VRTS still brought into typical radar to measure what what need to measure a function. These measure a function to all measure API to be a foundation with NI-RFmx, can offer accurate measurement quickly result. The typical case that VRTS backs measures include:

·Radiation direction pursues

·Equivalent complete Xiang Fu shoots power (EIRP)

·Noise

·Spectrum is had rate

·Beam width

·Linear frequency modulation analyses: Too degree of linearity, strong, record, label

 

Express 2.VRTS hardware function