自动灌溉

irrigate_status = open

is_auto_irrigate-是否开启自动灌溉soil_humidity-土壤湿度   - soil_humidity_lowest-灌溉最低湿度阈值   - soil_humidity_highest-灌溉最高湿度阈值irrigate_status-灌溉状态irrigate_duration-灌溉时长上限start_time-灌溉开始时间end_time-灌溉结束时间

no

is_auto_irrigate = 1

 soil_humidity < soil_humidity_lowest

yes

 soil_humidity > soil_humidity_highest

addOne:start_time = new Date()，irrigate_status = open，DelayQueueSender.sendMessage(irrigate_duration)

结束

开始