empty last location in sdk if unit is not moving?

Hi Wolf

It seems like a problem in your code logic.
Can you provide a code sample where you get last unit location?

ok, thats what Venelin coded:
[25.08.14 15:03:43] Venelin Vasilev: urlGetAUs =
                   wialonurlfix + "/ajax.html?svc=messages/load_last&sid=" + eID +
                   "&params={" +
                           "\"itemId\":" + node.Tag.ToString() + "," +
                           "\"lastTime\":" + DateTimeToUnixTimestamp(MyTimeInWesternEurope) + "," +
                           "\"lastCount\":1," +
                           "\"flags\":0," +
                           "\"flagsMask\":0x0000," +
                           "\"loadCount\":1" +

                   "}";

results is always empty if unit is not moving...

Wolf.

Hi, thanks for your cooperation on this matter
Let me try with using future period but I dont think that will help , we dont have a problem of random messages missing. Problem is that only inactive units are not included into result
Above request seen in Wolf's reply will return below data. There are 12 units in this group, but as you can see there are 10 into reply.

My question is if it there is any other way to check unit last position - this is what we actually need. We decided to use messages as one way to get last position, but if you have any other idea how to fetch last unit position - please let us know, thanks

{"count":1,"messages":[{"t":1408895940,"f":4096,"tp":"xx","p":{"user":"hilltronicservice","action":"update_unit_bytecounter","host":"job","p1":"0","p2":"319","p3":"avl_unit"}}]}

{"count":1,"messages":[{"t":1408957204,"f":2,"tp":"ud","pos":null,"i":0,"p":"param179":0,"param180":0,"adc1":0.168,"param182":14,"hdop":1.4,"pwr_ext":12.366,"param24":0,"param199":0,"battery_charge":0}}]}

{"count":1,"messages":[{"t":1408954095,"f":3,"tp":"ud","pos":{"y":43.4365728,"x":24.591128,"z":85,"s":0,"c":0,"sc":7},"i":0,"p":{"param179":0,"param180":0,"adc1":0.175,"param182":11,"hdop":1.1,"pwr_ext":12.778,"param24":0,"param199":0,"battery_charge":0}}]}

{"count":1,"messages":[{"t":1408955027,"f":3,"tp":"ud","pos":{"y":43.4377664,"x":24.5901904,"z":78,"s":0,"c":0,"sc":8},"i":0,"p":{"param179":0,"param180":0,"adc1":0.168,"param182":10,"hdop":1,"pwr_ext":12.921,"param24":0,"param199":0,"battery_charge":0}}]}

{"count":1,"messages":[{"t":1408952528,"f":3,"tp":"ud","pos":{"y":43.4368032,"x":24.5910848,"z":87,"s":0,"c":0,"sc":9},"i":0,"p":{"param179":0,"param180":0,"adc1":0.161,"param182":11,"hdop":1.1,"pwr_ext":12.692,"param24":0,"param199":0,"battery_charge":0}}]}

{"count":1,"messages":[{"t":1408961101,"f":3,"tp":"ud","pos":{"y":43.4368224,"x":24.5912672,"z":102,"s":0,"c":0,"sc":8},"i":0,"p":{"param179":0,"param180":0,"adc1":0.162,"param182":10,"hdop":1,"pwr_ext":13.39,"param24":0,"param199":0,"battery_charge":0}}]}

{"count":1,"messages":[{"t":1408966524,"f":3,"tp":"ud","pos":{"y":43.436624,"x":24.5916464,"z":68,"s":0,"c":0,"sc":6},"i":0,"p":{"param179":0,"param180":0,"adc1":0.16,"param182":13,"hdop":1.3,"pwr_ext":12.644,"param24":0,"param199":0,"battery_charge":0}}]}

{"count":1,"messages":[{"t":1408951874,"f":3,"tp":"ud","pos":{"y":42.9822784,"x":24.679816,"z":320,"s":0,"c":0,"sc":7},"i":0,"p":{"param179":0,"param180":0,"adc1":0.174,"param182":12,"hdop":1.2,"pwr_ext":13.112,"param24":0,"param199":0,"battery_charge":0}}]}

{"count":1,"messages":[{"t":1408960095,"f":3,"tp":"ud","pos":{"y":43.4366336,"x":24.5908416,"z":93,"s":0,"c":0,"sc":7},"i":0,"p":{"param179":0,"param180":0,"adc1":0.161,"param182":14,"hdop":1.4,"pwr_ext":13.103,"param24":0,"param199":0,"battery_charge":0}}]}

{"count":1,"messages":[{"t":1408969391,"f":3,"tp":"ud","pos":{"y":43.437024,"x":24.5913376,"z":103,"s":0,"c":0,"sc":7},"i":0,"p":{"param179":0,"param180":0,"adc1":0.168,"param182":9,"hdop":0.9,"pwr_ext":12.912,"param24":0,"param199":0,"battery_charge":0}}]}

{"count":1,"messages":[{"t":1408956619,"f":3,"tp":"ud","pos":{"y":43.436784,"x":24.5908352,"z":105,"s":0,"c":0,"sc":6},"i":0,"p":{"param179":0,"param180":0,"adc1":0.162,"param182":14,"hdop":1.4,"pwr_ext":13.045,"param24":0,"param199":38,"battery_charge":0}}]}

{"count":1,"messages":[{"t":1408955400,"f":3,"tp":"ud","pos":{"y":43.4366496,"x":24.5911408,"z":88,"s":0,"c":0,"sc":8},"i":0,"p":{"param179":0,"param180":0,"adc1":0.174,"param182":11,"hdop":1.1,"pwr_ext":12.988,"param24":0,"param199":0,"battery_charge":0}}]}

"... Using core/search_items you can just add 0x00000400 flag..."
hmm, that might do the trick, thanks it seems will return unit pos every time no matter unit active or not, seems just what we need, have to test it a bit more though...

"How often are you planning to run your app (once in minute/ 10 minutes/ hour /day)?"
this is configurable , 1 min or more

"As i see, you already have units and use its id. How did you get it?"
I use below code to list available units, I use flag 1 as I only need unit name with this query

urlGetAUs =
            wialonurlfix + "/ajax.html?svc=core/update_data_flags&sid=" + eID +
            "&params={" +
                "\"spec\":[" +
                "{" +
                    "\"type\":\"type\"," +
                    "\"data\":\"avl_unit\"," +
                    "\"flags\":1," +
                   "\"mode\":0" +             
                "}" +
                "]" +
            "}";