ICPDAS TouchPAD

ICP DAS

MQTT SolutionBy WilsonCC-- 2.5

M2M

Pub/SubQoS

M2M & IoT

M2M IoTIOT

BluetoothBarcodeRFIDM2MNon-IPThings

IoT

IoT ()

5HTTP? v.s. MQTT

HTTP?/ ?(stateless)

MQTT/ ()

MQTT

MQTT IBM Arcom (Eurotech)OASISMQTT2014199920102013/ (Publish/Subscribe)

(Quality of Service)

QoS 0QoS 1QoS 2

MQtt BrokerQoS 0

MQtt BrokerQoS 1

MQtt BrokerQoS 2(Last Will & Testament)

MQtt BrokerLWT123/: offline

MQtt Broker 123/: offline

w/o

MQtt Broker 5 min1/: 25.0

1/: 25.012Delay