CN215180868U - Long-distance and multi-target millimeter wave radar signal processing platform based on MPSOC - Google Patents
Long-distance and multi-target millimeter wave radar signal processing platform based on MPSOC Download PDFInfo
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Abstract
The utility model discloses a remote, multi-target millimeter wave radar signal processing platform based on MPSOC, include: the ADC module is used for being connected with the detection radar so as to convert an original radar signal sent by the detection radar from an analog signal into a digital signal; the MPSOC processor is connected with the ADC module and is used for receiving the digital original radar signals transmitted by the ADC module and preprocessing the digital original radar signals; and the solid state disk is connected with the MPSOC processor and is used for receiving and storing the digital original radar signals and the preprocessed radar signals transmitted by the MPSOC processor. The MPSOC processor is used for mounting the solid state disk, so that the processing platform can acquire and store very important original data and preprocessing data in the radar, and resource requirements are provided for a long-distance multi-target detection algorithm.
Description
Technical Field
The utility model relates to a radar signal processing platform technical field especially relates to a remote, multi-target millimeter wave radar signal processing platform based on MPSOC.
Background
The millimeter wave radar realizes the detection of the distance, the speed and the direction of a target based on the transmission and the reflection of electromagnetic waves in space, has the characteristics of time-of-day, all weather and the like, gradually reduces the cost along with the improvement of the integration of the radar, is widely applied to various industries such as security protection, transportation, automobiles and the like as a novel sensor, overcomes the defect that the current universal camera cannot normally work in the environments such as the night, the strong light, the rainy and snowy days and the like, and directly influences the final performance and the price of the radar by using a signal processor as a signal processing center of the radar.
In the current radar signal processing platform, the radar signal processing platform is divided into several types: the short-distance radar with low detection capability adopts a single ARM chip integrating an ADC module, and has the advantages of low price, small volume and low power consumption; the radar with the medium-range detection capability generally adopts a high-end ARM processor, such as MPC5775 of NXP; the long-distance and multi-target detection radar generally adopts a first generation heterogeneous chip ZYNQ of FPGA + DSP/ARM or xilinx, because the FPGA + DSP needs complex peripheral circuits and software and hardware requirements for supporting high-speed communication between chips, the size is large, the power consumption is high, the stability is relatively poor, and the platform debugging is very troublesome, the first generation heterogeneous ZYNQ integrates the FPGA + ARM, and is a very good processing platform choice, the radar on the market at present also adopts the scheme, the ARM of the chip is a dual-core A9, has low main frequency, can not be hung with a solid hard disk locally and the like, is difficult to meet the algorithm resource requirements of long-distance and multi-target detection, and finally can only operate in modes of algorithm simplification, radar output distance reduction, radar output target number reduction and the like, but in the long-distance, multi-target and multi-lane detection radar, the indexes are more urgent than those of short-distance detection, more importantly, as the high-speed detection radar, the radar with the long-distance and multi-lane detection capability is more suitable due to the portal frame and power supply required by the erection and installation equipment which is inconvenient and intensive at high speed.
Therefore, how to solve the technical problem that the existing radar signal processing platform is difficult to meet the algorithm resource requirement of long-distance and multi-target detection because the solid state disk cannot be mounted locally becomes a technical problem to be solved urgently by technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
The utility model provides a remote, multi-target millimeter wave radar signal processing platform based on MPSOC (the new generation integrated SOC that xilinx company released) for solve current radar signal processing platform owing to can not local mount solid state hard drives, hardly satisfy the technical problem of remote, multi-target detection's algorithm resource needs.
In order to solve the technical problem, the utility model provides a technical scheme does:
a long-distance, multi-target millimeter wave radar signal processing platform based on MPSOC comprises:
an ADC (Analog-to-Digital Converter) module for connecting to the detection radar to convert an original radar signal transmitted from the detection radar from an Analog signal to a Digital signal;
the MPSOC processor is connected with the ADC module and is used for receiving the digital original radar signals transmitted by the ADC module and preprocessing the digital original radar signals;
and the solid state disk is connected with the MPSOC processor and is used for receiving and storing the digital original radar signals and the preprocessed radar signals transmitted by the MPSOC processor.
Preferably, the system comprises a first storage module for the MPSOC processor to read and write at high speed, and the first storage module is connected with the MPSOC processor.
Preferably, the MPSOC processor includes:
the FPGA (Field Programmable Gate Array) unit is respectively connected with the ADC module and the first storage module and is used for performing parallel preprocessing on the digital original radar signals transmitted by the ADC module and storing the digital original radar signals and the preprocessed radar signals to the first storage module;
and the ARM (embedded microprocessor with low power consumption and low cost) unit is respectively connected with the first storage module and the solid state disk and is used for taking out the digital original radar signal from the first storage module and storing the preprocessed radar signal to the solid state disk.
Preferably, the ADC module is a multi-channel ADC module, the solid state disk is a SATA (serial hard disk), and the first storage module is a DDR4 (a static memory supporting double data reading and random access).
Preferably, the system comprises a second storage module for storing the root system file of the processing platform and a third storage module for storing a work log and records generated when the processing platform works; the second storage module and the third storage module are both connected with the MPSOC processor.
Preferably, the second memory module is a Qflash (Non-Volatile memory) and the third memory module is an EMMC (Embedded Multi Media Card).
Preferably, the system comprises a communication module for information interaction between the MPSOC processor and an external terminal, and the communication module is connected with the MPSOC processor.
Preferably, the communication module is an integrated gigabit network communication module.
The utility model discloses following beneficial effect has:
1. the utility model provides a remote, multi-target millimeter wave radar signal processing platform based on MPSOC, include: the ADC module is used for being connected with the detection radar so as to convert an original radar signal sent by the detection radar from an analog signal into a digital signal; the MPSOC processor is connected with the ADC module and is used for receiving the digital original radar signals transmitted by the ADC module and preprocessing the digital original radar signals; and the solid state disk is connected with the MPSOC processor and is used for receiving and storing the digital original radar signals and the preprocessed radar signals transmitted by the MPSOC processor. In addition, the radar processing platform based on the MPSOC in the technical scheme has stronger parallel computing capability and more advanced ARM resources, has the advantages of high integration level, simple communication between chips, compact structure, low power consumption and the like, can easily execute various complex algorithms such as artificial intelligence, virtual scene learning and the like on the platform, and provides the remote detection capability and detection precision of the radar.
2. In the preferred scheme, the root system files of the processing platform and the working logs and records generated when the processing platform works are stored in different storage modules, so that the problem of radar crash caused by chip failure caused by misoperation in the frequent reading and writing process of flash is avoided.
3. In a preferred scheme, the FPGA side of the technical scheme can easily access multiple cameras of a current general SDI (digital component serial interface) and MIPI (mobile industry processor interface) interface into a radar system through an official public free IP core (i.e., a video signal transmission port), so that radar data and video data are fused inside an MPSOC chip, thereby solving the problems that the fusion of the current ADAS sensor is performed outside the device by adopting an edge computing platform, the size is large, the power consumption is large, and the sensor synchronization problem is more.
In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be described in further detail below with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:
FIG. 1 is a simplified diagram of a MPSOC-based remote multi-target millimeter wave radar signal processing platform according to a preferred embodiment of the present invention;
FIG. 2 is a flowchart of the MPSOC-based remote multi-target millimeter wave radar signal processing platform according to the preferred embodiment of the present invention;
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
The first embodiment is as follows:
as shown in fig. 1, the present implementation discloses a remote multi-target millimeter wave radar signal processing platform (hereinafter referred to as a processing platform) based on MPSOC, which includes:
the ADC module is used for being connected with the detection radar so as to convert an original radar signal sent by the detection radar from an analog signal into a digital signal;
the MPSOC processor is connected with the ADC module and is used for receiving the digital original radar signals transmitted by the ADC module and preprocessing the digital original radar signals;
and the solid state disk is connected with the MPSOC processor and is used for receiving and storing the digital original radar signals and the preprocessed radar signals transmitted by the MPSOC processor.
The utility model provides a remote, multi-target millimeter wave radar signal processing platform based on MPSOC, include: the ADC module is used for being connected with the detection radar so as to convert an original radar signal sent by the detection radar from an analog signal into a digital signal; the MPSOC processor is connected with the ADC module and is used for receiving the digital original radar signals transmitted by the ADC module and preprocessing the digital original radar signals; and the solid state disk is connected with the MPSOC processor and is used for receiving and storing the digital original radar signals and the preprocessed radar signals transmitted by the MPSOC processor. In addition, the radar processing platform based on the MPSOC in the technical scheme has stronger parallel computing capability and more advanced ARM resources, has the advantages of high integration level, simple communication between chips, compact structure, low power consumption and the like, can easily execute various complex algorithms such as artificial intelligence, virtual scene learning and the like on the platform, and provides the remote detection capability and detection precision of the radar.
Example two:
the second embodiment is the preferred embodiment of the first embodiment, and the difference between the first embodiment and the second embodiment is that the specific structure of the processing platform is refined, and the specific structure specifically includes the following contents:
a long-distance, multi-target millimeter wave radar signal processing platform based on MPSOC comprises:
the ADC module is used for being connected with the detection radar so as to convert an original radar signal sent by the detection radar from an analog signal into a digital signal; the MPSOC processor is connected with the ADC module and is used for receiving the digital original radar signals transmitted by the ADC module and preprocessing the digital original radar signals; and the solid state disk is connected with the MPSOC processor and is used for receiving and storing the digital original radar signals and the preprocessed radar signals transmitted by the MPSOC processor.
The MPSOC processor also comprises a first storage module used for high-speed reading and writing of the MPSOC processor, and the first storage module is connected with the MPSOC processor. The system also comprises a second storage module for storing the root system file of the processing platform and a third storage module for storing a working log and records generated when the processing platform works; the second storage module and the third storage module are both connected with the MPSOC processor. The MPSOC comprises an MPSOC processor and is characterized by also comprising a communication module used for information interaction between the MPSOC processor and an external terminal, wherein the communication module is connected with the MPSOC processor.
Wherein, MPSOC treater includes:
the FPGA unit is respectively connected with the ADC module and the first storage module and is used for performing parallel preprocessing on the digital original radar signals transmitted by the ADC module and storing the digital original radar signals and the preprocessed radar signals to the first storage module;
and the ARM unit is respectively connected with the first storage module and the solid state disk and is used for taking out the digital original radar signal from the first storage module and storing the preprocessed radar signal to the solid state disk.
Specifically, in this embodiment, the ADC module is a multi-channel ADC module, the solid state disk is SATA, and the first storage module is DDR 4. The second memory module is Qflash, and the third memory module is EMMC. The communication module is an integrated gigabit network communication module. The MPSOC processor preferentially selects an XCZU2EG chip of Xilinx (sailing), the chip integrates a high-performance UltraScale structure FPGA, a 4-core Cotex-A53 (the dominant frequency is up to 1.5G) and a dual-core Cotex-R5 (the dominant frequency is 667MHz), and peripherals integrated at an ARM end are also very rich and comprise common high-speed interfaces in the market at present, such as SATA, PCIE and gigabit network.
The platform is characterized in that an MPSOC processor serves as a processor, the MPSOC is composed of an FPGA unit and an ARM unit, the FPGA is connected with an ADC module, the ARM unit is connected with a DDR4, a Qflash, an EMMC, a sata and a gigabit Ethernet, the ADC module, the DDR4 and the like are all integrated on a self-developed circuit board, a linux system runs on the MPSOC processor, all peripheral devices on a radar are based on system operation, the radar is connected with a radio frequency board through a connector, the radio frequency board and a processing board are fixed and shielded through a metal shielding core, and finally the radio frequency board and the processing board are installed in a radar product shell to form a finished product.
The millimeter wave radar signal processing platform of the utility model takes MPSOC as a control center, a PL end is connected with a multi-channel ADC module, a PS end is connected with a Qflash, EMMC, SATA, DDR4 and a gigabit network, wherein the Qflash capacity is 64MB (double-chip), the Qflash capacity is used as a starting disc for storing UBOOT in a radar Linux system, the number of devices, Uimage and a root file system, the EMMC capacity is 8GB and is used for storing radar working logs and other events needing to be recorded, the device needs to be read and written frequently, so the device and the radar system exist in different chips, the problem of radar crash caused by chip failure caused by misoperation in the frequent reading and writing process of flash is avoided, a solid state disk of 1T is hung on an SATA interface and is used for high-speed acquisition of local data, the interface is integrated, the radar system can acquire very important original data and preprocessed data in the radar through a processor of the radar system, the MPSOC is also different from other radar processing platforms and the first generation ZYNQ of xilinx, the capacity of DDR4 is 4GB, monolithic 1GB, the 4 generation DDR of large capacity can provide the RAM support of operation for FPGA and ARM simultaneously, FPGA carries out high-speed reading and writing to DDR through the AXI bus, ARM carries out high-speed reading and writing to DDR through the DDR controller in the piece, the integration of giga net can make the radar can be very convenient with the quick output of a great deal of targets in the remote detection range, simultaneously outside computer can carry out Web visit and setting to the radar based on Linux system through the ethernet, start multiple operation such as data collection, if the radar erects in the place far away than, connect general 4G wireless module at the output of ethernet, can realize long-range control and the collection to the radar.
After the radar is powered on, a bootstrap program of the MPSOC loads a system start mirror image from the Qflash, after the system is started, a radar application program and an FPGA program are started through a script, the FPGA program detects whether a radio frequency synchronous signal is effective, after the synchronous signal is effective, the ADC is started to acquire and convert data, the data enters from an FPGA port of the MPSOC and is stored in the DDR through an AXI bus, after one frame of data is received, the FPGA performs preprocessing such as FFT, DBF and the like on multi-path original ADC data, after the preprocessing is completed, the FPGA in the MPSOC informs an ARM end to acquire the data, the ARM end acquires the FPGA and the processed data from the DDR through a DDR controller, and the data are divided into two paths according to acquisition requirements: the first path stores FPGA into original radar data in DDR or preprocessed data into a high-speed and large-capacity solid state disk through a SATA bus, the second path takes out the preprocessed data to filter, cluster and track a target to form a target track, the target track is output through Ethernet according to a specified communication protocol, the target detected by the radar can be checked and verified through an upper computer matched with a computer running outside, and the target track can be checked and various parameters of the radar can be set through the computer accessing a WEB server on a radar processor system. In this embodiment, the ARM end filters, clusters, and tracks the target to form a target track by using the prior art, which is not the key point of the invention and is not limited herein.
Wherein, in the processing platform, general signal flow is as shown in fig. 2, the intermediate frequency signal of radar is put through fortune, the filtering process back gets into the ADC module, the signal is converted into digital signal from analog signal, then adopt FPGA to carry out 1/2/3 dimension FFT to multichannel ADC data, digital beam synthesis, digital filtering etc., this process is called the preliminary treatment, the advantage of FPGA parallel computation is fully embodied at this in-process, for example 8 receive the antenna, divide IQ two ways after every receives the antenna mixing, just so be 16 way analog signal altogether, if adopt the treater of linear processing flow such as DSP or ARM, it is very obvious that need all the way to go all the way to carry out the time sharing executive task, and FPGA's framework just can be parallelly, carry out the preliminary treatment of 16 way data simultaneously, at this moment the utility model discloses an FPGA is as the advantage of preprocessing unit in the MPSOC.
To sum up, the utility model provides a remote, multi-target millimeter wave radar signal processing platform based on MPSOC, include: the ADC module is used for being connected with the detection radar so as to convert an original radar signal sent by the detection radar from an analog signal into a digital signal; the MPSOC processor is connected with the ADC module and is used for receiving the digital original radar signals transmitted by the ADC module and preprocessing the digital original radar signals; and the solid state disk is connected with the MPSOC processor and is used for receiving and storing the digital original radar signals and the preprocessed radar signals transmitted by the MPSOC processor. In addition, the radar processing platform based on the MPSOC in the technical scheme has stronger parallel computing capability and more advanced ARM resources, has the advantages of high integration level, simple communication between chips, compact structure, low power consumption and the like, can easily execute various complex algorithms such as artificial intelligence, virtual scene learning and the like on the platform, and provides the remote detection capability and detection precision of the radar.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a long-range, many target millimeter wave radar signal processing platform based on MPSOC which characterized in that includes:
the ADC module is used for being connected with a detection radar so as to convert an original radar signal sent by the detection radar from an analog signal into a digital signal;
the MPSOC processor is connected with the ADC module and is used for receiving the digital original radar signals transmitted by the ADC module and preprocessing the digital original radar signals;
and the solid state disk is connected with the MPSOC processor and is used for receiving and storing the digital original radar signals and the preprocessed radar signals transmitted by the MPSOC processor.
2. The MPSOC-based long-distance multi-target millimeter wave radar signal processing platform of claim 1, comprising a first storage module for the MPSOC processor to read and write at high speed, the first storage module being connected with the MPSOC processor.
3. The MPSOC-based long-range, multi-target millimeter wave radar signal processing platform of claim 2, wherein the MPSOC processor comprises:
the FPGA unit is respectively connected with the ADC module and the first storage module and is used for performing parallel preprocessing on the digital original radar signals transmitted by the ADC module and storing the digital original radar signals and the preprocessed radar signals to the first storage module;
and the ARM unit is respectively connected with the first storage module and the solid state disk and is used for taking out the digital original radar signal and the preprocessed radar signal from the first storage module and storing the digital original radar signal and the preprocessed radar signal to the solid state disk.
4. The MPSOC-based long-range, multi-target millimeter wave radar signal processing platform of claim 1, wherein the ADC module is a multi-channel ADC module, the solid state disk is SATA, and the first storage module is DDR 4.
5. The MPSOC-based long-distance multi-target millimeter wave radar signal processing platform according to claim 1, comprising a second storage module for storing root system files of the processing platform and a third storage module for storing work logs and records generated when the processing platform works; the second storage module and the third storage module are both connected with the MPSOC processor.
6. The MPSOC-based long-range, multi-target millimeter wave radar signal processing platform of claim 5, wherein the second storage module is a Qflash and the third storage module is an EMMC.
7. The MPSOC-based long-distance multi-target millimeter wave radar signal processing platform of claim 1, comprising a communication module for information interaction between the MPSOC processor and an external terminal, wherein the communication module is connected with the MPSOC processor.
8. The MPSOC-based long-range, multi-target millimeter wave radar signal processing platform of claim 7, wherein the communication module is an integrated gigabit network communication module.
9. The MPSOC-based long-range, multi-target millimeter wave radar signal processing platform of claim 1, wherein the MPSOC processor further comprises a video signal transmission port, and the MPSOC processor is connected with the video monitoring terminal through the video signal transmission port.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114286106A (en) * | 2021-12-29 | 2022-04-05 | 苏州长风航空电子有限公司 | Multi-path SDI video extremely-low-delay coding system and method based on MPSoC |
| CN116610388A (en) * | 2023-07-19 | 2023-08-18 | 成都泰格微电子研究所有限责任公司 | Method and device for quickly starting ADC and linux system |
| CN117092631A (en) * | 2023-10-19 | 2023-11-21 | 江苏翰林正川工程技术有限公司 | Target positioning and ranging method and system for power transmission channel construction machinery |
| CN117452357A (en) * | 2023-12-22 | 2024-01-26 | 上海几何伙伴智能驾驶有限公司 | System and method for realizing multichannel data acquisition and injection based on FPGA |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114286106A (en) * | 2021-12-29 | 2022-04-05 | 苏州长风航空电子有限公司 | Multi-path SDI video extremely-low-delay coding system and method based on MPSoC |
| CN114286106B (en) * | 2021-12-29 | 2024-02-13 | 苏州长风航空电子有限公司 | MPSoC-based multipath SDI video extremely-low-delay coding system |
| CN116610388A (en) * | 2023-07-19 | 2023-08-18 | 成都泰格微电子研究所有限责任公司 | Method and device for quickly starting ADC and linux system |
| CN116610388B (en) * | 2023-07-19 | 2023-09-19 | 成都泰格微电子研究所有限责任公司 | Method and device for quickly starting ADC and linux system |
| CN117092631A (en) * | 2023-10-19 | 2023-11-21 | 江苏翰林正川工程技术有限公司 | Target positioning and ranging method and system for power transmission channel construction machinery |
| CN117092631B (en) * | 2023-10-19 | 2024-04-19 | 江苏翰林正川工程技术有限公司 | Target positioning and ranging method and system for power transmission channel construction machinery |
| CN117452357A (en) * | 2023-12-22 | 2024-01-26 | 上海几何伙伴智能驾驶有限公司 | System and method for realizing multichannel data acquisition and injection based on FPGA |
| CN117452357B (en) * | 2023-12-22 | 2024-03-19 | 上海几何伙伴智能驾驶有限公司 | System and method for realizing multichannel data acquisition and injection based on FPGA |
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Address after: 410100 No. 208, floor 2, building B7, Lugu Yuyuan, No. 27, Wenxuan Road, Changsha high tech Development Zone, Changsha City, Hunan Province Patentee after: HUNAN NANORADAR TECHNOLOGY CO.,LTD. Patentee after: Huanuo Xingkong Technology Co.,Ltd. Address before: 410100 No. 208, floor 2, building B7, Lugu Yuyuan, No. 27, Wenxuan Road, Changsha high tech Development Zone, Changsha City, Hunan Province Patentee before: HUNAN NANORADAR TECHNOLOGY CO.,LTD. Patentee before: Hunan Huanuo Xingkong Electronic Technology Co.,Ltd. Address after: 410100 No. 208, floor 2, building B7, Lugu Yuyuan, No. 27, Wenxuan Road, Changsha high tech Development Zone, Changsha City, Hunan Province Patentee after: HUNAN NANORADAR TECHNOLOGY CO.,LTD. Patentee after: Hunan Huanuo Xingkong Electronic Technology Co.,Ltd. Address before: 410100 No. 208, floor 2, building B7, Lugu Yuyuan, No. 27, Wenxuan Road, Changsha high tech Development Zone, Changsha City, Hunan Province Patentee before: HUNAN NANORADAR TECHNOLOGY CO.,LTD. Patentee before: HUNAN NOVASKY ELECTRONIC TECHNOLOGY Co.,Ltd. |