[
    {
        "Desc":
        {
            "Name": "total_power",
            "SensorType": "power"
        },
        "Threshold" :
        {
        },
        "Params":
        {
            "DbusParam":
            [
                {
                    "ParamName": "PSU0_POUTPUT",
                    "Desc":
                    {
                        "Name": "PSU0_POUTPUT",
                        "SensorType": "power"
                    }
                },
                {
                    "ParamName": "PSU1_POUTPUT",
                    "Desc":
                    {
                        "Name": "PSU1_POUTPUT",
                        "SensorType": "power"
                    }
                }
            ]
        },
        "Expression": "PSU0_POUTPUT + PSU1_POUTPUT"
    }
]