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| - [Files](#files) | |
| - [supported_hardware.txt](#files-supported_hardware) | |
| - [pid_serial_mapping.txt](#pid_serial_mapping) | |
| - [Models-requirement](#models-requirement) | |
| <hr /> | |
| Not all files in this folder are required. It depends on the [features](https://www.doubango.org/SDKs/anpr/docs/Features.html) you want to activate. | |
| **This entire folder is useless if your hardware isn't Amlogic or you've disabled NPU ([Neural Processing Unit](https://en.wikichip.org/wiki/neural_processor)) acceleration.** | |
| <a name="files"></a> | |
| # Files | |
| <a name="files-supported_hardware"></a> | |
| ## supported_hardware.txt | |
| [This file](supported_hardware.txt) contains the list of hardware names (case insensitive) for which NPU ([Neural Processing Unit](https://en.wikichip.org/wiki/neural_processor)) acceleration will be enabled. Your hardware must be listed in this file. | |
| You can edit this file to include your hardware name. To get the name of your hardware: `cat /proc/cpuinfo | grep Hardware`. | |
| <a name="pid_serial_mapping"></a> | |
| ## pid_serial_mapping.txt | |
| [This file](pid_serial_mapping.txt) contains the mapping between the PID of the models and the 4-first digits of your serial number. More at [Model Transcoding and Running User Guide (1.0).pdf](https://github.com/khadas/aml_npu_sdk/blob/master/docs/en/Model%20Transcoding%20and%20Running%20User%20Guide%20(1.0).pdf) page 9. | |
| | PID | serial (4-first digits) | | |
| |-------- | --- | | |
| |0x7D|290a| | |
| |**0x88**|**290b**| | |
| |0x99|2b0a| | |
| |0xA1|300a| | |
| |0xA1|300b| | |
| |0x99|2f0a| | |
| |0xB9|2f0b| | |
| |0xBE|330a| | |
| |0xBE|330b| | |
| |0xE8|380a| | |
| |0xE8|380b| | |
| When I run `cat /proc/cpuinfo | grep Serial` on my Khadas VIM3 I get `Serial : 290b100001111500001731343258****`, that means my 4-first digits are `290b` which means my PID is `0x88` which means my models will be inside [PID0x88](PID0x88) folder. | |
| Please contact us via the [dev-group](https://groups.google.com/g/doubango-ai) if the folder correspoding to your PID is empty. | |
| <a name="models-requirement"></a> | |
| # Models requirement | |
| | Folder | Requirement | | |
| |-------- | --- | | |
| | ultimateALPR-SDK_detect_main.mobile.model.amlogic.doubango | **Always required when NPU acceleration is enabled** | | |
| | ultimateALPR-SDK_detect_pysearch.mobile.model.amlogic.doubango | **Always required when NPU acceleration is enabled** | | |
| | ultimateALPR-SDK_klass_lpci.mobile.model.amlogic.doubango | Only if NPU acceleration is enabled and you want [License Plate Country Identification (LPCI)](https://www.doubango.org/SDKs/anpr/docs/Features.html#license-plate-country-identification-lpci) | | |
| | ultimateALPR-SDK_klass_vbsr.mobile.model.amlogic.doubango | Only if NPU acceleration is enabled and you want [Vehicle Color Recognition (VCR)](https://www.doubango.org/SDKs/anpr/docs/Features.html#vehicle-color-recognition-vcr) | | |
| | ultimateALPR-SDK_klass_vcr.mobile.model.amlogic.doubango | Only if NPU acceleration is enabled and you want [Vehicle Make Model Recognition (VMMR)](https://www.doubango.org/SDKs/anpr/docs/Features.html#vehicle-make-model-recognition-vmmr) | | |
| | ultimateALPR-SDK_klass_vmmr.mobile.model.amlogic.doubango | Only if NPU acceleration is enabled and you want [Vehicle Body Style Recognition (VBSR)](https://www.doubango.org/SDKs/anpr/docs/Features.html#vehicle-body-style-recognition-vbsr) | | |