3)在连接成功之后,如果TLLconnSupervision超过connSupervisionTimeout,则说明link loss,则执行超时断开。connSupervisionTimeout是一个可配置的参数,范围是100ms~32s,并且不能大于(1 + connSlaveLatency) * connInterval * 2。 4)BLE协议允许slave忽略掉“connSlaveLatency”个Connection Event,在被忽略的这段时间内,Sl...
3)在连接成功之后,如果TLLconnSupervision超过connSupervisionTimeout,则说明link loss,则执行超时断开。connSupervisionTimeout是一个可配置的参数,范围是100ms~32s,并且不能大于(1 + connSlaveLatency) * connInterval * 2。 4)BLE协议允许slave忽略掉“connSlaveLatency”个Connection Event,在被忽略的这段时间内,Sl...
3)在连接成功之后,如果TLLconnSupervision超过connSupervisionTimeout,则说明link loss,则执行超时断开。connSupervisionTimeout是一个可配置的参数,范围是100ms~32s,并且不能大于(1 + connSlaveLatency) * connInterval * 2。 4)BLE协议允许slave忽略掉“connSlaveLatency”个Connection Event,在被忽略的这段时间内,Sl...
put("00001803-0000-1000-8000-00805f9b34fb", "Link Loss"); attributes.put("00001804-0000-1000-8000-00805f9b34fb", "Tx Power"); attributes.put("00001805-0000-1000-8000-00805f9b34fb", "Current Time Service"); attributes.put("00001806-0000-1000-8000-00805f9b34fb", "Reference Time ...
{"0x1800" -> "Generic Access service""0x1801" -> "Generic Attribute service""0x1802" -> "Immediate Alert service""0x1803" -> "Link Loss service""0x1804" -> "Tx Power service""0x1805" -> "Current Time service""0x1806" -> "Reference Time Update service""0x1807" -> "Next DST ...
链路质量(Link Quality)是指BLE连接的稳定性和可靠性。它通常通过监测丢包率(Packet Loss)和信号噪声(Signal-to-Noise Ratio)来评估。丢包率指的是数据包在传输过程中丢失的比例,而信号噪声指的是信号中存在的干扰和噪音的程度。通过监测链路质量,可以了解到BLE连接的稳定性和可靠性,从而判断是否需要采取措施来优化连...
3. LLS(link loss service),write/read属性,供master设置链路断开情况下默认的告警级别。 RSSI通过接收端的接口来获得,并不需要设备端提供service。 以上Characteristic都通过GATT profile提供服务,在蓝牙通信协议上,每个Characteristic都会对应一个UUID。 android蓝牙BLE接口编程 ...
{case "0x1800":return "Generic Access service";case "0x1801":return "Generic Attribute service";case "0x1802":return "Immediate Alert service";case "0x1803":return "Link Loss service";case "0x1804":return "Tx Power service";case "0x1805":return "Current Time service";case "0x1806":...
3)在连接成功之后,如果TLLconnSupervision超过connSupervisionTimeout,则说明link loss,则执行超时断开。connSupervisionTimeout是一个可配置的参数,范围是100ms~32s,并且不能大于(1 + connSlaveLatency) * connInterval * 2。 4)BLE协议允许slave忽略掉“connSlaveLatency”个Connection Event,在被忽略的这段时间内,Sl...
UUID. */10#defineBLE_UUID_HUMAN_INTERFACE_DEVICE_SERVICE 0x1812 /**< Human Interface Device service UUID. */11#defineBLE_UUID_IMMEDIATE_ALERT_SERVICE 0x1802 /**< Immediate Alert service UUID. */12#defineBLE_UUID_LINK_LOSS_SERVICE 0x1803 /**< Link Loss service UUID. */13#defineBLE_...