参考下面上报设备信息，在连连app，产品信息中只能看到固件版本是对应上的，厂家信息名称，产品型号，mac地址都是空的。请问这些的key值是什么？如何报上去，谢谢。

static int _get_sys_info(void *handle, char *pJsonDoc, size_t sizeOfBuffer)
{
/platform info has at least one of module_hardinfo/module_softinfo/fw_ver property/
DeviceProperty platform_info[] = {
{.key = "module_hardinfo", .type = TYPE_TEMPLATE_STRING, .data = "ESP32"},
{.key = "module_softinfo", .type = TYPE_TEMPLATE_STRING, .data = "V1.0"},
{.key = "fw_ver", .type = TYPE_TEMPLATE_STRING, .data = QCLOUD_IOT_DEVICE_SDK_VERSION},
{.key = "imei", .type = TYPE_TEMPLATE_STRING, .data = "11-22-33-44"},
{.key = "lat", .type = TYPE_TEMPLATE_STRING, .data = "22.546015"},
{.key = "lon", .type = TYPE_TEMPLATE_STRING, .data = "113.941125"},
{.key = NULL, .data = NULL} // end
};

/*self define info*/
DeviceProperty self_info[] = {
    {.key = "append_info", .type = TYPE_TEMPLATE_STRING, .data = "ESP8266 test board demo"},
    {.key = NULL, .data = NULL}  // end
};
return IOT_Template_JSON_ConstructSysInfo(handle, pJsonDoc, sizeOfBuffer, platform_info, self_info);

}