我在使用IDAS Iotagent时遇到了问题 . 使用MQTT Ultralight代理，取决于我如何注册设备，当代理接收到读取时，iotagent服务崩溃并且相关实体不会更新到上下文代理 .
正确的行为是下一个 . 如果创建服务：
curl -X POST 172.21.0.23:8090/iot/services \
-i \
-H "Content-Type: application/json" \
-H "Fiware-Service: red_entrada _1" \
-H "Fiware-ServicePath: /Prueba" \
-d '{
"services": [
{
"apikey": "pass_1",
"cbroker": "http://172.21.0.23:1026",
"entity_type": "disp_entrada_1",
"resource": "/iot/mqtt"
}]}'
...和一个设备，为每个属性 Build 传入属性和名称：
curl -X POST 172.21.0.23:8090/iot/devices \
-i \
-H "Content-Type: application/json" \
-H "Fiware-Service: red_entrada _1" \
-H "Fiware-ServicePath: /Prueba" \
-d '{
"devices":[
{
"device_id": "AC_2",
"entity_name":"disp_entrada_1:AC_2",
"protocol":"PDI-IoTA-MQTT-UltraLight",
"entity_type": "disp_entrada_1",
"timezone": "Europe/Madrid",
"attributes": [
{
"object_id": "LUX",
"name": "LUX_1",
"type": "string"
},
{
"object_id": "LUM",
"name": "LUM_1",
"type": "string" },
{
"object_id": "HUMB",
"name": "HUMB_1",
"type": "string"
},
{
"object_id": "TCB",
"name": "TCB_1",
"type": "string"
},
{
"object_id": "IN_TEMP",
"name": "IN_TEMP_1",
"type": "string" },
{
"object_id": "BAT",
"name": "BAT_1",
"type": "string"
}
]}]}'
因此，在上下文代理中创建一个新实体，并且当读数到达代理时，此实体将更新：
{
"_id" : {
"id" : "disp_entrada_1:AC_2",
"type" : "disp_entrada_1",
"servicePath" : "/Prueba"
},
"attrNames" : [
"TimeInstant",
"LUX_1",
"LUM_1",
"HUMB_1",
"TCB_1",
"IN_TEMP_1",
"BAT_1"
],
"attrs" : {
"TimeInstant" : {
"value" : "2016-03-14T08:11:49.810465Z",
"type" : "ISO8601",
"creDate" : 1457943015,
"modDate" : 1457943109
},
"LUX_1" : {
"value" : "464.000",
"type" : "string",
"md" : [
{
"name" : "TimeInstant",
"type" : "ISO8601",
"value" : "2016-03-14T08:11:49.687585Z"
}
],
"creDate" : 1457943103,
"modDate" : 1457943109
},
"LUM_1" : {
"value" : "2.694",
"type" : "string",
"md" : [
{
"name" : "TimeInstant",
"type" : "ISO8601",
"value" : "2016-03-14T08:11:49.718131Z"
}
],
"creDate" : 1457943103,
"modDate" : 1457943109
},
"HUMB_1" : {
"value" : "38.7",
"type" : "string",
"md" : [
{
"name" : "TimeInstant",
"type" : "ISO8601",
"value" : "2016-03-14T08:11:49.748719Z"
}
],
"creDate" : 1457943103,
"modDate" : 1457943109
},
"TCB_1" : {
"value" : "21.31",
"type" : "string",
"md" : [
{
"name" : "TimeInstant",
"type" : "ISO8601",
"value" : "2016-03-14T08:11:49.779327Z"
}
],
"creDate" : 1457943103,
"modDate" : 1457943109
},
"IN_TEMP_1" : {
"value" : "21.00",
"type" : "string",
"md" : [
{
"name" : "TimeInstant",
"type" : "ISO8601",
"value" : "2016-03-14T08:11:49.810465Z"
}
],
"creDate" : 1457943103,
"modDate" : 1457943109
},
"BAT_1" : {
"value" : "97",
"type" : "string",
"md" : [
{
"name" : "TimeInstant",
"type" : "ISO8601",
"value" : "2016-03-14T08:11:49.230590Z"
}
],
"creDate" : 1457943103,
"modDate" : 1457943109
}
},
"creDate" : 1457943015,
"modDate" : 1457943109
}
当我注册一个新的DEVICE并且我使用“object_id”的相同值（属性的名称到传入的MQTT数据中）作为属性的名称时出现问题 . 当然在这种情况下，没有必要注册DEVICE） . 例如：
curl -X POST 172.21.0.23:8090/iot/devices \
-i \
-H "Content-Type: application/json" \
-H "Fiware-Service: red_entrada_2" \
-H "Fiware-ServicePath: /Prueba" \
-d '{
"devices":[
{
"device_id": "AC_2",
"entity_name":"disp_entrada_1:AC_2",
"protocol":"PDI-IoTA-MQTT-UltraLight",
"entity_type": "disp_entrada_1",
"timezone": "Europe/Madrid",
"attributes": [
{
"object_id": "LUX",
"name": "LUX",
"type": "string"
},
{
"object_id": "LUM",
"name": "LUM",
"type": "string"
},
{
"object_id": "HUMB",
"name": "HUMB",
"type": "string"
},
{
"object_id": "TCB",
"name": "TCB",
"type": "string"
},
{
"object_id": "IN_TEMP",
"name": "IN_TEMP",
"type": "string"
},
{
"object_id": "BAT",
"name": "BAT",
"type": "string"
}
]}] }'
在这种情况下，也会在上下文代理中创建一个新实体，但是当读数到达时，实体不会更新，IoTAgent服务也会崩溃 . 实体状态：
{
"_id" : {
"id" : " disp_entrada_1:AC_2",
"type" : " disp_entrada_1",
"servicePath" : "/Prueba"
},
"attrNames" : [
"TimeInstant"
],
"attrs" : {
"TimeInstant" : {
"type" : "ISO8601",
"creDate" : 1457948167,
"modDate" : 1457948167,
"value" : "2016-03-14T09:36:07.432814Z"
}
},
"creDate" : 1457948167,
"modDate" : 1457948167
}
我看不出有关这种行为的任何逻辑 . 如果我没有预先注册设备，将自动创建实体，并且属性将具有“object_id”字段的值作为名称（这是我在第二个示例中尝试执行的操作） .
¿是否可能是由于代理或经理安装上的问题？
1 回答
实际上这是一个错误，当您将要转换的参数“t”关联到相同的（“t”）时，它会导致无限循环 .
最好的解决方案是不要求任何翻译，然后它将保留为原始（“t”） .
在下一个版本中，此错误将得到修复 .
感谢您使用IDAS，抱歉我们迟到了！