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UWB功耗大数据插桩调研

article 2025/2/12 23:47:42

一、摘要


UWB功耗点	插桩点	日志关键字	电流
蓝牙持锁	BatteryStats的锁统计	vendor_bluetooth_lock	30~40mA
测距	UwbSessionManager.startRanging UwbSessionManager.stoptRanging 或接入fadiKey Uwb状态广播 "com.fadiui.dkservice.action.uwb.state.change"	startRanging\|stopRanging\|UwbUciCore	60~90mA （无持锁测距~持锁测距）

初步结论：可行，加下代码，后面实测下是否正确触发。

UWB 命令集：

adb shell dumpsys uwb

adb shell cmd uwb help

二、UWB架构

2.1 UWB 堆栈架构

UWB 堆栈由 UWB Mainline 模块和 UWB 芯片供应商提供的 HAL 实现组成。

2.2 UWB framework

三、功耗相关日志

3.1 蓝牙持锁日志

日志关键字：vendor_bluetooth_lock

AP_Log/50_2023-07-29_101149/kernel.txt:8866:07-29 10:13:32.909 10241 10241 I PM      : PM: Pending Wakeup Sources: vendor_bluetooth_lock 898000.qcom,qup_uartAP_Log/50_2023-07-29_101149/kernel.txt:8870:07-29 10:13:32.979 10241 10241 I Abort   : Pending Wakeup Sources: vendor_bluetooth_lock 898000.qcom,qup_uartAP_Log/50_2023-07-29_101149/main.txt:34388:07-29 10:17:02.969  1301  1301 W binder:1301_2: type=1400 audit(0.0:838): avc: denied { read } for name="ssrdump" dev="dm-14" ino=259 scontext=u:r:hal_bluetooth_default:s0 tcontext=u:object_r:vendor_ramdump_vendor_data_file:s0 tclass=dir permissive=0AP_Log/51_2023-07-29_101721_boot/kernel.txt:3286:07-29 10:17:38.461   132   132 I [fadi]: active wakeup source: vendor_bluetooth_lock, active_since: 848 ms , active_count: 3 , pending suspend count: 0AP_Log/51_2023-07-29_101721_boot/kernel.txt:4219:07-29 10:18:58.329   132   132 I [fadi]: active wakeup source: vendor_bluetooth_lock, active_since: 1049 ms , active_count: 12 , pending suspend count: 0AP_Log/51_2023-07-29_101721_boot/kernel.txt:5421:07-29 10:20:08.471   132   132 I [fadi]: active wakeup source: vendor_bluetooth_lock, active_since: 161 ms , active_count: 17 , pending suspend count: 0AP_Log/51_2023-07-29_101721_boot/kernel.txt:9321:07-29 10:29:00.609   132   132 I [fadi]: active wakeup source: vendor_bluetooth_lock, active_since: 366 ms , active_count: 42 , pending suspend count: 0

3.2 UWB测距

日志关键字：startRanging|stopRanging|UwbUciCore

AP_Log/51_2023-07-29_101721_boot/main.txt:58342:07-29 10:17:42.868  1862  5087 I UwbUciCore: uwb_ucif_proc_ranging_data: ranging_measures_length = 48 range_data_ntf_len = 232AP_Log/51_2023-07-29_101721_boot/main.txt:58343:07-29 10:17:42.868  1862  5087 I UwbUciCore: uwa_dm_uwb_response_cback:UWB_VENDOR_SPECIfIC_UCI_NTF_EVT(0x401d)AP_Log/51_2023-07-29_101721_boot/main.txt:58347:07-29 10:17:42.869  1862  5087 I UwbUciCore: uwa_dm_uwb_response_cback:UWB_RANGE_DATA_REVT(0x4011)AP_Log/51_2023-07-29_101721_boot/main.txt:58380:07-29 10:17:43.061  1862  5087 I UwbUciCore: uwb_ucif_process_event enter gid:0x62 status:0x1AP_Log/51_2023-07-29_101721_boot/main.txt:58381:07-29 10:17:43.061  1862  5087 I UwbUciCore: uwb_ucif_process_event: UWB received ntf gid:2AP_Log/51_2023-07-29_101721_boot/main.txt:58382:07-29 10:17:43.061  1862  5087 I UwbUciCore: uwb_ucif_proc_ranging_data: ranging_measures_length = 48 range_data_ntf_len = 232AP_Log/51_2023-07-29_101721_boot/main.txt:58383:07-29 10:17:43.061  1862  5087 I UwbUciCore: uwa_dm_uwb_response_cback:UWB_VENDOR_SPECIfIC_UCI_NTF_EVT(0x401d)AP_Log/51_2023-07-29_101721_boot/main.txt:58387:07-29 10:17:43.061  1862  5087 I UwbUciCore: uwa_dm_uwb_response_cback:UWB_RANGE_DATA_REVT(0x4011)AP_Log/51_2023-07-29_101721_boot/main.txt:58480:07-29 10:17:43.255  1862  5087 I UwbUciCore: uwb_ucif_process_event enter gid:0x62 status:0x2AP_Log/51_2023-07-29_101721_boot/main.txt:58481:07-29 10:17:43.255  1862  5087 I UwbUciCore: uwb_ucif_process_event: UWB received ntf gid:2AP_Log/51_2023-07-29_101721_boot/main.txt:58482:07-29 10:17:43.255  1862  5087 I UwbUciCore: uwb_ucif_proc_ranging_data: ranging_measures_length = 48 range_data_ntf_len = 232AP_Log/51_2023-07-29_101721_boot/main.txt:58483:07-29 10:17:43.255  1862  5087 I UwbUciCore: uwa_dm_uwb_response_cback:UWB_VENDOR_SPECIfIC_UCI_NTF_EVT(0x401d)