Just for info
This is one of the few times using a change node and JSONata is just as fast and cleaner, as there is no need to rejoin split array.
[{"id":"7a15c50b.023a4c","type":"inject","z":"5a245aa1.510164","name":"your data","props":[{"p":"payload"},{"p":"topic","v":"","vt":"date"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"{\"Info\":{\"Battery\":0,\"ID\":1,\"Latitudine\":\"45.47\",\"Longitudine\":\"9.19\"},\"Data\":[[{\"AcX\":16688,\"AcY\":104,\"AcZ\":2064,\"time\":1618343910},{\"AcX\":16680,\"AcY\":128,\"AcZ\":2052,\"time\":1618346910},{\"AcX\":16676,\"AcY\":180,\"AcZ\":1816,\"time\":1618349910},{\"AcX\":16616,\"AcY\":188,\"AcZ\":1968,\"time\":1618352910},{\"AcX\":16592,\"AcY\":196,\"AcZ\":1844,\"time\":1618355910},{\"AcX\":16712,\"AcY\":116,\"AcZ\":2036,\"time\":1618358910},{\"AcX\":16596,\"AcY\":104,\"AcZ\":2044,\"time\":1618361910},{\"AcX\":16672,\"AcY\":52,\"AcZ\":1860,\"time\":1618364910},{\"AcX\":16736,\"AcY\":172,\"AcZ\":2000,\"time\":1618367910}]]}","payloadType":"json","x":230,"y":4540,"wires":[["dc59b3eb.14ac3"]]},{"id":"dc59b3eb.14ac3","type":"change","z":"5a245aa1.510164","name":"set msg.info and msg.payload","rules":[{"t":"set","p":"info","pt":"msg","to":"payload.Info","tot":"msg"},{"t":"set","p":"payload","pt":"msg","to":"payload.Data[0]","tot":"msg"}],"action":"","property":"","from":"","to":"","reg":false,"x":444,"y":4540,"wires":[["93d921f4.e0493"]]},{"id":"93d921f4.e0493","type":"split","z":"5a245aa1.510164","name":"","splt":"\\n","spltType":"str","arraySplt":1,"arraySpltType":"len","stream":false,"addname":"","x":222,"y":4604,"wires":[["eff51f68.4d8ff"]]},{"id":"eff51f68.4d8ff","type":"function","z":"5a245aa1.510164","name":"merge .info and .payload","func":"var influxData = {\n ...msg.info,\n ...msg.payload\n}\ninfluxData.Latitudine = Number(influxData.Latitudine);\ninfluxData.Longitudine = Number(influxData.Longitudine);\nmsg.payload = influxData;\nreturn msg;","outputs":1,"noerr":0,"initialize":"","finalize":"","x":408,"y":4604,"wires":[["b6f82563.22a778","6af1a26b.2258e4"]]},{"id":"b6f82563.22a778","type":"debug","z":"5a245aa1.510164","name":"","active":false,"tosidebar":true,"console":false,"tostatus":false,"complete":"payload","targetType":"msg","statusVal":"","statusType":"auto","x":670,"y":4580,"wires":[]},{"id":"6af1a26b.2258e4","type":"join","z":"5a245aa1.510164","name":"","mode":"auto","build":"string","property":"payload","propertyType":"msg","key":"topic","joiner":"\\n","joinerType":"str","accumulate":"false","timeout":"","count":"","reduceRight":false,"x":520,"y":4640,"wires":[["666008bf.e4439"]]},{"id":"666008bf.e4439","type":"debug","z":"5a245aa1.510164","name":"","active":true,"tosidebar":true,"console":false,"tostatus":true,"complete":"payload","targetType":"msg","statusVal":"$millis() - topic","statusType":"jsonata","x":720,"y":4640,"wires":[]},{"id":"6e195fb5.65b33","type":"inject","z":"5a245aa1.510164","name":"","props":[{"p":"payload"},{"p":"topic","v":"","vt":"date"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"{\"Info\":{\"Battery\":0,\"ID\":1,\"Latitudine\":\"45.47\",\"Longitudine\":\"9.19\"},\"Data\":[[{\"AcX\":16688,\"AcY\":104,\"AcZ\":2064,\"time\":1618343910},{\"AcX\":16680,\"AcY\":128,\"AcZ\":2052,\"time\":1618346910},{\"AcX\":16676,\"AcY\":180,\"AcZ\":1816,\"time\":1618349910},{\"AcX\":16616,\"AcY\":188,\"AcZ\":1968,\"time\":1618352910},{\"AcX\":16592,\"AcY\":196,\"AcZ\":1844,\"time\":1618355910},{\"AcX\":16712,\"AcY\":116,\"AcZ\":2036,\"time\":1618358910},{\"AcX\":16596,\"AcY\":104,\"AcZ\":2044,\"time\":1618361910},{\"AcX\":16672,\"AcY\":52,\"AcZ\":1860,\"time\":1618364910},{\"AcX\":16736,\"AcY\":172,\"AcZ\":2000,\"time\":1618367910}]]}","payloadType":"json","x":140,"y":4440,"wires":[["517b19ca.010be8"]]},{"id":"517b19ca.010be8","type":"change","z":"5a245aa1.510164","name":"","rules":[{"t":"set","p":"payload","pt":"msg","to":"($info := $each(payload.Info, function($v, $k){{$k:$number($v)}});\tpayload.Data[0].$merge([$,$info])\t)","tot":"jsonata"}],"action":"","property":"","from":"","to":"","reg":false,"x":320,"y":4440,"wires":[["f13da7e6.5a62","823320ad.ae198"]]},{"id":"f13da7e6.5a62","type":"split","z":"5a245aa1.510164","name":"","splt":"\\n","spltType":"str","arraySplt":1,"arraySpltType":"len","stream":false,"addname":"","x":510,"y":4440,"wires":[["809051e9.7d5008"]]},{"id":"823320ad.ae198","type":"debug","z":"5a245aa1.510164","name":"array","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"payload","targetType":"msg","statusVal":"","statusType":"auto","x":640,"y":4400,"wires":[]},{"id":"809051e9.7d5008","type":"debug","z":"5a245aa1.510164","name":"split array","active":false,"tosidebar":true,"console":false,"tostatus":true,"complete":"true","targetType":"full","statusVal":"$millis() - topic","statusType":"jsonata","x":710,"y":4440,"wires":[]}]
(
$info := $each(
payload.Info,
function($v, $k){{$k:$number($v)}}
);
payload.Data[0].$merge([$,$info])
)