Вы не вошли. Пожалуйста, войдите или зарегистрируйтесь.
Hello
I use Wialon Local Remote API and I need to get sensors with its values for all vehicals.
I saw I can use messages/load_last and then unit/calc_sensors to get sensors values for a single unit. But I have to repeat it a hundreds times.
Is it good to do this in a batch command (core/batch) successively executing load_last -> calc_sensors for every unit or it has a simple solution?
Can someone give me advice?
Only in a batch. Try to do it not very often.
Hello
There are 3 ways how to get sensor value
- load_messages (or load_last) and then calc_sensor
- exec trace sensor report
- using SDK JS http://sdk.wialon.com/api/#wialon.item.MUnitSensor~calculateSensorValue!method_public
Also you can exec one batch request with several units (e.g all units you need???)
Can you tell more about your task?
Do you need only last sensor value or values for time range?
All units at once or units can be divided?
Do you need this info for every new message (like every second) or once an hour?
What programming language do you use?
Hello,
I am using node.js and I need sensors values for a given date and time. It will be executed few times a day.
I did it using batch command with load_last and calc_sensor, but at the beginning I received "url exceed the maximum length" (or something like that).
I work with approximately 100 vehicles and not sure if it is limitation in wialon or in node request module. Removed some quotes and it works now, but after couple of months the count of the vehicles will be increased.
lbtomov
Please ensure you're sending POST request.
Here's how i do it in Node.js
var request = require('request');
/** Perform Remote API request
*/
var remoteApi = function(svc, sid, params, cb) {
params = params || {};
var form = {
svc: svc,
params: JSON.stringify(params)
};
if (sid) {
form.sid = sid;
}
request.post({
url: config.url + '/wialon/ajax.html',
json: true,
form: form
}, cb);
};
remoteApi('token/login', '', {token: 'TOKEN'}, function(error, response, body) {
console.log(body);
});shmi you are absolutely right.
It was GET request . I changed it to POST and now it works like a charm.
Thank you.
Hi
https://hst-api.wialon.com/wialon/ajax.html?svc=unit/sid=calc_sensors¶ms={"source":"","indexFrom": 0, "indexTo":1, "unitId":20783118 , "sensorId": 0}&sid=09b6c89eda2497c8f9b942c35f25b3fc
Error :
{
"error": 2
}
Please help me.
Thanks you
Hi
https://hst-api.wialon.com/wialon/ajax.html?svc=unit/sid=calc_sensors¶ms={"source":"","indexFrom": 0, "indexTo":1, "unitId":20783118 , "sensorId": 0}&sid=09b6c89eda2497c8f9b942c35f25b3fc
Error :
{
"error": 2
}Please help me.
Thanks you
Hello!
error 2 means Invalid service name (svc). In your case svc=unit/sid=calc_sensors sid is mistake, the correct is svc=unit/calc_sensors
Hi
Thanks you!
but error again....
https://hst-api.wialon.com/wialon/ajax.html?svc=unit/calc_sensors¶ms={"source":" ","indexFrom":0,"indexTo":1,"unitId":20783118,"sensorId":0}&sid=096c82259f8d537e0db47d589c492044
{
"error": 4
}
Please help me.
Thanks you
Hi!
Before get sensor's values it needs to load required raw messages to message loader :
Execute request svc=messages/load_interval to load messages from interval or svc=messages/load_last to load last messages.
After you can execute request svc=unit/calc_sensonrs with empty source paramter "source":"" (please note - without any space in value) as messages are put from message loader directly.
For example,
https://hst-api.wialon.com/wialon/ajax.html?svc=messages/load_interval¶ms={"itemId":135,"timeFrom":1583010000,"timeTo":1584392399,"flags":1,"flagsMask":65281,"loadCount":3}&sid=029b7fbf397b30239da8a43332fbc49dresponse - fisrt 3 messages
{"count":6915,"messages":[{"t":1583232345,"f":1073741825,"tp":"ud","pos":{"y":53.9057559,"x":27.456982,"c":295,"z":315,"s":8,"sc":8},"lc":0,"rt":1583232413,"p":{"pass":"15","pass_index":0,"a":25.5520000458}},{"t":1583232345,"f":1073741825,"tp":"ud","pos":{"y":53.9057478,"x":27.4570056,"c":290,"z":315.5,"s":6,"sc":8},"lc":0,"rt":1583232413,"p":{"pass":"15","pass_index":0,"a":25.3220005035}},{"t":1583232348,"f":1073741825,"tp":"ud","pos":{"y":53.9057735,"x":27.4569488,"c":278,"z":315,"s":0,"sc":8},"lc":0,"rt":1583232413,"p":{"pass":"15","pass_index":0,"a":25.954000473}}]}get sensors from 2 first messages
https://hst-api.wialon.com/wialon/ajax.html?svc=unit/calc_sensors¶ms={"source":"","indexFrom":0,"indexTo":1,"unitId":135,"sensorId":0}&sid=029b7fbf397b30239da8a43332fbc49dresponce
[{"1":8,"2":0,"3":0,"4":-348201.3876,"5":25.5520000458,"6":0,"7":0,"8":0,"9":0,"10":1583232345,"11":295,"12":315,"13":-348201.3876,"14":-348201.3876,"15":0,"16":-348201.3876,"17":-348201.3876,"18":1583232413,"19":-348201.3876,"20":-348201.3876,"21":25.5520000458,"22":25.5520000458},{"1":6,"2":0,"3":0,"4":-348201.3876,"5":25.3220005035,"6":0,"7":0,"8":0,"9":0,"10":1583232345,"11":290,"12":315.5,"13":-348201.3876,"14":-348201.3876,"15":0,"16":-348201.3876,"17":-348201.3876,"18":1583232413,"19":-348201.3876,"20":-348201.3876,"21":25.3220005035,"22":25.3220005035}]Hi, I want to get history of unit locations with sensor values (eg. Ignition On/Off)
Just like in the image.
What API should I use?
Hi, I want to get history of unit locations with sensor values (eg. Ignition On/Off)
Just like in the image.What API should I use?
Hello!
The response above https://forum.gurtam.com/viewtopic.php? … 83#p177683