CN212391544U - Performance test system for intelligent internet vehicle - Google Patents
Performance test system for intelligent internet vehicle Download PDFInfo
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- CN212391544U CN212391544U CN201922248604.9U CN201922248604U CN212391544U CN 212391544 U CN212391544 U CN 212391544U CN 201922248604 U CN201922248604 U CN 201922248604U CN 212391544 U CN212391544 U CN 212391544U
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Abstract
The utility model provides a capability test system for intelligent networking car, this system include networking system part to and intelligent system part and/or electromagnetism harass part. The networking system part respectively activates a vehicle-mounted V2X module and a navigation module through a communication comprehensive tester and a satellite signal generator, and a data collector collects vehicle networking system data; the intelligent system part simulates a road scene through a radar target simulator and a video playing device and respectively activates a vehicle-mounted millimeter wave radar and an ADAS camera; the test equipment for activating the intelligent network system needs to simulate the same road scene and synchronize in real time. The utility model discloses carry out the electromagnetism immunity of whole car and channel immunity performance test under bicycle intelligence and the car networking technical fusion scheme in the anechoic chamber, electromagnetic compatibility problem, the aassessment its channel immunity performance that discovery system exists in intelligent networking car research and development stage promote the functional security of vehicle, promote vehicle autopilot performance.
Description
Technical Field
The utility model relates to a car electromagnetic compatibility and car communication test field, concretely relates to a capability test system for intelligent networking car.
Background
The intelligent internet automobile is a carrier of unmanned technology, unmanned driving is to be realized, and the integration of single-automobile intelligence and vehicle networking technology is the trend of the development of the unmanned technology, but no mass production automobile model with the integration of the intelligent internet exists at present.
Due to the development of intelligent networking of automobiles, the intelligent networking automobile carries tens of communication transmission modules, dozens of hundreds of sensors, hundreds of control units and kilometer-long cables, and the electromagnetic compatibility risk brought by the intelligent networking automobile is obvious. In addition, intelligent networked automobiles face a complex road electromagnetic environment. From an external electromagnetic disturbance source, with the development of industrial modernization, the number of various broadcasting stations, transformer substations, communication base stations and high-voltage wires is increased, the number of handheld transmitters in a vehicle is increased, and the electromagnetic environment in a space is increasingly complicated due to the factors. From the perspective of the communication channel, the combination of different road scenes (expressway, urban road, tunnel, viaduct, etc.), weather environments (rain, snow, fog, etc.), will bring different effects of multipath, shadowing, doppler shift, path loss, etc. Just because the communication scene has the variety in the road, communication channel has the characteristics of complexity, and these factors will lead to communication performance reduction, form the communication blind area, can threaten driving safety even under the critical condition.
At present, the industry is focusing on developing a technology for fusing bicycle intelligence and car networking technologies, and more paying attention to the functional performance test. Because the intelligent networking automobile faces a large risk of electromagnetic interference and channel interference, the electromagnetic interference resistance performance and the channel interference resistance performance of the intelligent networking automobile are imperatively tested.
The existing technical scheme is mostly a functional performance test and electromagnetic anti-interference test scheme aiming at a millimeter wave radar-based single-vehicle intelligent system, and a channel interference test scheme aiming at an intelligent network connection vehicle is not provided. For example, in patent publication No. CN107003398B entitled "test method for vehicle safety radar system using virtual radar signature", a radar target simulator is mainly used to generate a radar echo signal for testing and evaluating only the function and performance of an on-vehicle millimeter-wave radar.
The patent application with the publication number of CN110208758A and the name of 'a millimeter wave radar testing system and method for vehicles' is mainly a method for testing the electromagnetic anti-interference performance of a vehicle-mounted millimeter wave radar in a microwave darkroom, and a test object is only an ADAS system based on the vehicle-mounted millimeter wave radar.
The prior art can not realize the working condition simulation of the whole intelligent networking system in a anechoic chamber and carry out external electromagnetic disturbance and channel disturbance test on the whole intelligent networking system, and can not realize the test and evaluation of the electromagnetic disturbance rejection performance and the channel disturbance rejection performance of the intelligent networking automobile.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects in the prior art, the utility model aims to provide a capability test system for intelligent networking car. The problem of can't realize whole car intelligence networking system operating mode simulation and carry out outside electromagnetic disturbance and channel interference test to it in the electric wave darkroom at present is solved.
In order to achieve the above object of the present invention, the present invention provides a performance testing system for an intelligent internet vehicle, which comprises an internet system part; or comprises a networking system part, an intelligent system part and/or an electromagnetic disturbance part; the networking system part comprises a communication comprehensive tester and/or a satellite signal generator which are arranged outside the anechoic chamber and have different independent working frequency bands, wherein the first signal ends of the communication comprehensive tester and the satellite signal generator are respectively connected with corresponding ports of the controller, and the second signal ends of the communication comprehensive tester and the satellite signal generator are respectively connected with corresponding antennas in the anechoic chamber; the vehicle to be tested positioned in the anechoic chamber is provided with a network connection test terminal, the output end of the network connection test terminal is connected with the data acquisition unit outside the anechoic chamber, the signal output end of the data acquisition unit is connected with the controller, or the network connection test terminal is in wireless connection with the communication comprehensive tester through an antenna transmission signal.
The utility model discloses carry out the electromagnetism immunity of whole car and channel immunity capability test under bicycle intelligence and the car networking technical fusion scheme in the anechoic chamber, can in time discover the electromagnetism anti-interference and the channel anti-interference problem that its intelligent networking system exists in intelligent networking car research and development stage, promote the functional security of vehicle, promote vehicle autopilot functional quality, protection people's lives and property safety.
The utility model discloses an in a preferred embodiment, the communication is synthesized the appearance and is passed through first wave filter and its antenna connection that corresponds, and satellite signal generator passes through the second wave filter and its antenna connection that corresponds.
The electromagnetic disturbance of other frequency bands is prevented from damaging the network connection testing equipment through antenna coupling.
In another preferred embodiment of the present invention, the intelligent system part includes a radar target simulator and a video player, which are disposed in the anechoic chamber; the millimeter wave radar and the ADAS camera are arranged on a tested vehicle in the anechoic chamber, the millimeter wave radar receives echo signals sent by the radar target simulator under different simulation working conditions, and the ADAS camera of the tested vehicle acquires road scene images which are played by the video playing equipment and are synchronous with the simulation working conditions of the echo signals; the radar target simulator, the video playing device, the ADAS camera and the millimeter wave radar are in two-way communication with the controller outside the anechoic chamber through the signal transmission module.
The utility model arranges the radar target simulator and the video playing device in the anechoic chamber, so that the electromagnetic anti-interference test is more convenient and flexible; the system can perform electromagnetic anti-interference test on the whole vehicle ADAS system under various simulation working conditions when the vehicle-mounted millimeter wave radar and the camera are fused, so that the electromagnetic anti-interference test on the vehicle ADAS system is more in line with actual use conditions, the test result has reference and research values, the safety and stability problems of the ADAS system can be predicted in time, and the development and progress of the ADAS system are promoted.
In another preferred embodiment of the present invention, the signal transmission module includes an electro-optical conversion module located in the anechoic chamber and a photoelectric conversion module located outside the anechoic chamber, and the electro-optical conversion module and the photoelectric conversion module are connected by an optical fiber.
The utility model discloses convert the interactive signal of video playback equipment and radar target simulator and controller into light signal transmission, can effectively avoid the influence of electromagnetic interference signal to interactive signal in the anechoic chamber.
The utility model discloses an in another kind of preferred embodiment, the electromagnetic disturbance part includes the radio frequency signal source outside the anechoic chamber, radio frequency signal source's signal input part is connected with the controller, radio frequency signal source's signal output part is connected with the EMS power amplifier, the EMS antenna connection in the output and the anechoic chamber of EMS power amplifier. And the application of system electromagnetic disturbance is realized.
Therefore, the combined test of the electromagnetic immunity test and the channel anti-interference test is realized.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic diagram of a system layout according to a preferred embodiment of the present invention;
fig. 2 is a schematic system layout diagram according to another preferred embodiment of the present invention.
Reference numerals:
2 an ADAS camera; 3, video playing equipment; 4 EMS antenna; 5 millimeter wave radar; 6 millimeter wave absorption dark box; 7 radar target simulator; 8, a height adjusting table; 9V 2X communication terminal; a 10V 2X communications antenna; 11 satellite transmitting antenna.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, unless otherwise specified and limited, it is to be noted that the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, mechanically or electrically connected, or may be connected between two elements through an intermediate medium, or may be directly connected or indirectly connected, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.
The utility model discloses a performance test system for an intelligent network connection vehicle, which comprises a network connection system part; or a networking system part and at least one of an intelligent system part and an electromagnetic disturbance part. Namely, the network connection system comprises a network connection system part, or comprises a network connection part and an intelligent system part, or comprises a network connection part and an electromagnetic disturbance part, or comprises a network connection part, an electromagnetic disturbance part and an intelligent system part.
As shown in fig. 1 and 2, the networking system part includes communication synthesizers and/or satellite signal generators with different independent operating frequency bands, which are arranged outside the anechoic chamber. The first signal end of the satellite signal generator is connected with the controller in a bidirectional manner, and the first signal end of the satellite signal generator is connected with the corresponding port of the controller in a unidirectional or bidirectional manner. The second signal end of the communication comprehensive tester is bidirectionally connected with the V2X communication antenna 10 in the anechoic chamber. The second signal terminal of the satellite signal generator is connected to a satellite transmitting antenna 11 in the anechoic chamber.
The vehicle to be tested positioned in the anechoic chamber is provided with a network connection test terminal (such as a vehicle-mounted V2X communication terminal 9 and/or a navigation module), the output end of the network connection test terminal is connected with a data acquisition unit outside the anechoic chamber, the signal output end of the data acquisition unit is connected with a controller, or the network connection test terminal is wirelessly connected with a communication comprehensive tester by transmitting signals through an antenna. The specific networking system part respectively activates a vehicle-mounted communication module (such as a V2X module) and a navigation module through a communication comprehensive tester and a satellite signal generator, and a data acquisition unit acquires data of the vehicle networking system.
In this embodiment, a band-pass filter of each working frequency band needs to be inserted between the communication integrated instrument, the satellite signal generator and the corresponding antenna, so as to prevent electromagnetic disturbance of other frequency bands from damaging the communication integrated instrument by coupling the antenna with the network connection device, that is, the communication integrated instrument shown in fig. 1 is connected with the corresponding antenna through the first filter, and the satellite signal generator is connected with the corresponding antenna through the second filter.
In the present embodiment, the intelligent system portion includes a radar target simulator 7, a video playback device 3, which are provided in a anechoic chamber; the millimeter wave radar 5 and the ADAS camera 2 are arranged on a tested vehicle in the anechoic chamber, the millimeter wave radar 5 receives echo signals sent by the radar target simulator under different simulation working conditions, and the ADAS camera 2 of the tested vehicle collects road scene images which are played by video playing equipment and are synchronous with the simulation working conditions of the echo signals; the radar target simulator 7, the video playing device 3, the ADAS camera 2 and the millimeter wave radar 5 are all in two-way communication with the controller outside the anechoic chamber through signal transmission modules. The intelligent system part simulates a road scene through a radar target simulator and a video playing device, and respectively activates a vehicle-mounted millimeter wave radar and an ADAS camera.
The signal transmission module comprises an electro-optical conversion module positioned in the anechoic chamber and a photoelectric conversion module positioned outside the anechoic chamber, and the electro-optical conversion module and the photoelectric conversion module are connected through optical fibers.
The electromagnetic disturbance part comprises a radio frequency signal source outside the anechoic chamber, the signal input end of the radio frequency signal source is connected with the controller, the signal output end of the radio frequency signal source is connected with the EMS power amplifier, and the output end of the EMS power amplifier is connected with the EMS antenna inside the anechoic chamber.
In this embodiment, as shown in fig. 1, a millimeter wave radar 5 and an ADAS camera 2 are arranged on a vehicle to be tested located in a anechoic chamber, the millimeter wave radar 5 receives echo signals sent by a radar target simulator 7 under different simulation conditions, and the ADAS camera 2 of the vehicle to be tested collects road scene images which are played by a video playing device and are synchronous with the simulation conditions of the echo signals.
The signal transmission end of the controller is connected with the first signal transmission end of the signal transmission module, the second signal transmission end of the signal transmission module is connected with the signal transmission end of the video playing equipment 3, the third signal transmission end of the signal transmission module is connected with the signal transmission end of the radar target simulator 7, and the fourth signal transmission end of the signal transmission module is connected with the signal transmission end of the millimeter wave radar 5.
The signal output end of the radio frequency signal source is connected with the wired end of the EMS antenna 4.
In this embodiment, the video playing device is preferably, but not limited to, an electronic display screen.
In this embodiment, the simulated operating condition refers to various application scenarios of an ACC (Adaptive Cruise Control) system, an FCW (forward collision warning) system, and an AEB (automatic emergency braking) system in the actual driving process of the automobile, such as an ACC acceleration following, an ACC constant-speed following, an ACC deceleration following, an FCW system triggered by the emergency approach of the front automobile, an AEB system triggered by the emergency approach of the front automobile, and the like.
In this embodiment, the controller is configured to transmit a control signal to the video playback device 3, the radar target simulator 7, the communication comprehensive tester, and the satellite signal generator, so as to implement parameter setting and synchronization control of the test device. For example, the controller transmits radar echo signal setting parameters and video playing files which are synchronous in simulation working conditions to the video playing device 3 and the radar target simulator 7; transmitting a communication signal or a transmission mode selection signal to the communication comprehensive tester; the controller also transmits a satellite signal or a transmission mode selection signal to the satellite signal generator. In the present embodiment, the controller is preferably, but not limited to, a PC computer, a notebook computer, or the like. Preferably, the memory (for example, a hard disk) inside the controller may be sequentially stored with the echo signal, the radar echo interference, the communication interference and the satellite interference related parameters or the execution file of each simulated condition, and the synchronized video playing file, so that in the electromagnetic interference test, the controller may output the echo signal related parameters or the execution file synchronously simulated conditions, and the V2X communication signal and the satellite signal, respectively, or output the interference synchronously. The specific method for synchronizing the output signals can adopt the prior art.
In this embodiment, the communication comprehensive tester may have any existing structure, and may specifically be, but is not limited to, CMW 500. The satellite signal generator may be any existing structure, and may be, but is not limited to, SMBV 100B. The method of the specific controller transmitting the preset data to the control communication synthesizer and the satellite signal generator and the method of controlling their operation may employ the prior art. The data collector may employ VBOX.
In this embodiment, after the electromagnetic anti-interference test is completed, the worker reads information generated by the ADAS system in the test process and data acquired by the data acquisition unit and performs subsequent result analysis, and may also acquire feedback information through the antenna and the test equipment to perform subsequent result analysis.
In a preferred embodiment, the radar target simulator 7 is located in front of the millimeter wave radar 5 of the vehicle to be detected, and further preferably, the radar target simulator 7 is located in front of the millimeter wave radar 5 of the vehicle to be detected by 1-2 meters, and the laser aligner in the radar target simulator 7 needs to be aligned with the millimeter wave radar 5 to be detected.
In a preferred embodiment, the video playing device is located in front of the ADAS camera 2 of the vehicle to be tested, and performs conventional calibration on the video image before the electromagnetic interference resistance test, and further preferably, the video image played by the video playing device is entirely located within the field of view of the ADAS camera 2.
In the present embodiment, the anechoic chamber is a closed room, all the peripheries of the room are provided with shielding layers, and the inner wall of the room is provided with a sawtooth-shaped wave-absorbing material as shown in fig. 1.
In this embodiment, preferably, the radio frequency interference control end of the controller is connected to the control end of the radio frequency signal source; preferably, the rf signal source is, but not limited to, an rf comprehensive tester, which can be connected to and communicate with the controller through an equipment interface and a cable.
In the present embodiment, the wired end of the EMS antenna 4 is preferably, but not limited to, connected to the output end of the radio frequency signal through a low-loss dedicated radio frequency cable with a shielding function, and a through hole for the radio frequency cable to pass through is formed in the anechoic chamber.
In a preferred embodiment, the system further comprises a millimeter wave absorption dark box 6 arranged between the millimeter wave radar 5 and the radar target simulator 7 of the detected vehicle; and/or further comprises a height adjusting stage 8, and the radar target simulator 7 is placed on the height adjusting stage 8.
In the present embodiment, the millimeter wave absorbing dark box 6 is preferably, but not limited to, made of a plate-shaped or box-shaped wave absorbing material with a through hole in the middle, which enables an interference-free communication space channel between the millimeter wave radar 5 and the radar target simulator 7.
In a preferred embodiment, the radar target simulator 7 is provided with a first electromagnetic shielding means; and/or the video playing device is provided with a second electromagnetic shielding device. In this embodiment, the electromagnetic shielding device is preferably, but not limited to, a metal shielding cover or a metal shielding net or a shielding material adhesion layer disposed outside the radar target simulator 7, and a hole for outputting the echo signal is reserved in the metal shielding cover or the metal shielding net or the shielding material adhesion layer; the second electromagnetic shielding device is preferably but not limited to a metal shielding cover or a metal shielding mesh or a shielding material adhesion layer arranged outside the video playing device, and a hole for displaying the video image is reserved on the metal shielding cover or the metal shielding mesh or the shielding material adhesion layer. In a preferred embodiment, the system further comprises an EMS power amplifier connected in series with the connection path between the signal output end of the video signal source and the wired end of the EMS antenna 4.
In the present embodiment, the electromagnetic interference applying method can refer to the standards ISO 11451-2 and ISO 11451-3, and the electrostatic discharge immunity refers to the standard GB/T19951, which are not described herein again.
In this embodiment, preferably, when the video playing device 3 is an electronic display screen, the electronic display screen is placed right in front of the ADAS camera 2, and the position of the electronic display screen is adjusted according to the position of the ADAS camera 2, so that the electronic display screen and the central axis of the ADAS camera 2 are located on the same straight line; further preferred, still including supporting electronic display screen and adjusting the supporting mechanism of electronic display screen position, supporting mechanism includes the base, locates a plurality of gyro wheels of base lower extreme, locates at least one montant of base upper end telescopic, is equipped with the video playback device installation department on the montant. The roller is preferably a universal wheel, can drive the electronic display screen to move in the anechoic chamber to adjust the plane position of the electronic display screen in the anechoic chamber, and can adjust the height of the electronic display screen through the extension and retraction of the vertical rod. The video playing device mounting part is preferably but not limited to an existing snap structure or a hook.
In a preferred embodiment, the signal transmission module includes a photoelectric conversion module and an electro-optical conversion module, the signal transmission end of the video playback device 3 is connected to the first electrical signal connection end of the photoelectric conversion module, the signal transmission end of the radar target simulator 7 is connected to the second electrical signal connection end of the photoelectric conversion module, and the signal transmission end of the millimeter wave radar 5 is connected to the third electrical signal connection end of the photoelectric conversion module. The optical transmission end of the photoelectric conversion module is connected with the optical transmission end of the photoelectric conversion module, and the electrical signal connection end of the photoelectric conversion module is connected with the signal transmission end of the controller.
In the present embodiment, the optical transmission end of the photoelectric conversion module and the optical transmission end of the electro-optical conversion module are preferably connected by an optical fiber, so that interference-free signal propagation over a long distance can be realized.
In an application scenario of this embodiment, the photoelectric conversion module includes a first photoelectric conversion unit, a second photoelectric conversion unit, and a third photoelectric conversion unit, an output end of the first photoelectric conversion unit is connected to a signal input end of the video playback device through a wire, an output end of the second photoelectric conversion unit is connected to a signal input end of the radar target simulator 7 through a wire, and an output end of the third photoelectric conversion unit is connected to a signal input end of the millimeter wave radar 5 through a wire. The electro-optical conversion module comprises a first electro-optical conversion unit, a second electro-optical conversion unit and a third electro-optical conversion unit, wherein the output end of the first electro-optical conversion unit is connected with the input end of the first photoelectric conversion unit through an optical fiber, and the input end of the first electro-optical conversion unit is connected with the first signal output end of the controller through a wire; the output end of the second electro-optical conversion unit is connected with the input end of the second photoelectric conversion unit through an optical fiber, and the input end of the second electro-optical conversion unit is connected with the second signal output end of the controller through a wire; the output end of the third electro-optical conversion unit is connected with the input end of the third photoelectric conversion unit through an optical fiber, and the input end of the third electro-optical conversion unit is connected with the third signal output end of the controller through a wire.
In this embodiment, the electro-optical conversion unit is preferably, but not limited to, a Light Emitting Diode (LED) module or a laser diode module with an optical fiber connector, and the LED module or the laser diode module may be an existing product. The photoelectric conversion unit is preferably but not limited to a photoelectric receiving module with an optical fiber connector, and the photoelectric receiving module can select an existing photoelectric detector.
In a preferred embodiment, the controller, the electro-optical conversion module, the communication comprehensive tester, the satellite signal generator, the filter, the data collector and the radio frequency signal source are arranged in an EMC control room, and the electro-optical conversion module is arranged in an anechoic chamber.
In the embodiment, the networking system part, the intelligent system part and the electromagnetic disturbance part synchronously apply signals. During specific testing, different information corresponding to the same traffic scene is generated by the radar target simulator, the projection device, the communication comprehensive tester and the satellite signal generator in a working simulation mode, and simulated scene parameters among all the devices are synchronized in real time. In this embodiment, the electromagnetic disturbance may be applied by external radiation to the vehicle or by a disturbance source collected in the radio frequency source playback road. For example, the electromagnetic interference source is realized by a controller, a radio frequency source, an EMS power amplifier and an EMS transmitting antenna, and the electromagnetic interference sources radiated by the electromagnetic interference source are divided into two types: firstly, performing electromagnetic immunity test of a vehicle by using a vehicle external radiation source; and the second method is that a radio frequency source plays back a disturbance source collected in a road, and an electromagnetic immunity test is carried out on the vehicle according to a collected electromagnetic disturbance mode. Or by means of an electrostatic discharge simulator, electrostatic gun.
In this embodiment, radar target simulator, projecting apparatus electronic display screen can tolerate the utility model discloses an electromagnetism is harassed. The intelligent networking traffic scene simulated by the test system realizes the time synchronization of the single-vehicle intelligent simulation equipment and the vehicle networking simulation equipment. When the electromagnetic disturbance test is carried out, the same frequency disturbance exemption is needed to be carried out, and the electromagnetic disturbance is prevented from being coupled into the equipment through the internet antenna and causing damage to the equipment. In addition, the test system may also include monitoring equipment, such as an EMC monitoring camera, an EMC monitoring microphone, a CAN bus monitoring equipment, an ethernet signal monitoring equipment, and the like.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (5)
1. A performance test system for an intelligent internet vehicle is characterized by comprising an internet system part; or comprises a networking system part and at least one of an intelligent system part and an electromagnetic disturbance part;
the networking system part comprises a communication comprehensive tester and/or a satellite signal generator which are arranged outside the anechoic chamber and have different independent working frequency bands, the first signal ends of the communication comprehensive tester and the satellite signal generator are respectively connected with the controller, and the second signal ends of the communication comprehensive tester and the satellite signal generator are respectively connected with corresponding antennas in the anechoic chamber; a network connection test terminal is arranged on a tested vehicle positioned in the anechoic chamber;
the output end of the network connection test terminal is connected with a data collector outside the anechoic chamber, or the network connection test terminal is wirelessly connected with the communication comprehensive tester by transmitting signals through an antenna.
2. The performance testing system of claim 1, wherein the communication comprehensive tester is connected to the antenna corresponding thereto through a first filter, and the satellite signal generator is connected to the antenna corresponding thereto through a second filter.
3. The performance test system for the intelligent networked vehicle according to claim 1, wherein the intelligent system part comprises:
the radar target simulator and the video playing device are arranged in the anechoic chamber; and
the system comprises a millimeter wave radar and an ADAS camera which are arranged on a tested vehicle in a anechoic chamber, wherein the millimeter wave radar receives echo signals sent by a radar target simulator under different simulation working conditions, and the ADAS camera of the tested vehicle acquires road scene images which are played by a video playing device and are synchronous with the simulation working conditions of the echo signals;
the radar target simulator, the video playing device, the ADAS camera and the millimeter wave radar are in two-way communication with the controller outside the anechoic chamber through the signal transmission module.
4. The performance test system for the intelligent networked vehicle as claimed in claim 3, wherein the signal transmission module comprises an electro-optical conversion module located in the anechoic chamber and a photoelectric conversion module located outside the anechoic chamber, and the electro-optical conversion module and the photoelectric conversion module are connected through an optical fiber.
5. The performance testing system for the intelligent internet vehicle as claimed in claim 1, wherein the electromagnetic disturbance part comprises a radio frequency signal source outside the anechoic chamber, a signal input end of the radio frequency signal source is connected with the controller, a signal output end of the radio frequency signal source is connected with an EMS power amplifier, and an output end of the EMS power amplifier is connected with an EMS antenna inside the anechoic chamber.
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| CN201922248604.9U CN212391544U (en) | 2019-12-12 | 2019-12-12 | Performance test system for intelligent internet vehicle |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113311258A (en) * | 2021-04-28 | 2021-08-27 | 深圳海关工业品检测技术中心 | Semi-anechoic chamber device and electromagnetic compatibility EMC (electro magnetic compatibility) test method |
| CN113346963A (en) * | 2021-05-17 | 2021-09-03 | 一汽奔腾轿车有限公司 | Vehicle-mounted wireless communication product electromagnetic anti-interference test system and method based on 5G signal |
| CN114578393A (en) * | 2022-04-29 | 2022-06-03 | 湖南卫导信息科技有限公司 | Device for rapidly detecting performance of satellite navigation terminal mounted on carrier platform |
-
2019
- 2019-12-12 CN CN201922248604.9U patent/CN212391544U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113311258A (en) * | 2021-04-28 | 2021-08-27 | 深圳海关工业品检测技术中心 | Semi-anechoic chamber device and electromagnetic compatibility EMC (electro magnetic compatibility) test method |
| CN113346963A (en) * | 2021-05-17 | 2021-09-03 | 一汽奔腾轿车有限公司 | Vehicle-mounted wireless communication product electromagnetic anti-interference test system and method based on 5G signal |
| CN114578393A (en) * | 2022-04-29 | 2022-06-03 | 湖南卫导信息科技有限公司 | Device for rapidly detecting performance of satellite navigation terminal mounted on carrier platform |
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