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Applications for Web-Thermographs:

Retrieving and displaying multiple measurements using PHP

Additional links:

Product overview

Application overview

Print version

Position of the counter in px from the upper window edge

Position of the counter from the left window edge

Position of the border image in px from the upper and left window edge.

Time in ms within which the applet updates the measured value; adjust as needed.

When using multiple Web-Thermographs at one location, it may be desirable to display the data from the individual units on the same Web page. This is a good application for PHP.

Using the following copy & paste example you can display the measurements from multiple devices (here two Web-Thermographs) on one Web page.

For this example you need a Web server with PHP interpreter.

Do you not yet have a Web-Thermograph but would like to simply try one out like the example presented here?

No problem: We’ll send you the Web-Thermograph Pt100/Pt1000 at no charge for 30 days. Simply fill out the sample order form, and we’ll ship the Web-IO Analog-In for testing on an open invoice. If you return the unit within 30 days, we will credit the invoice in full.

To sample orders

Preparations

You have already provided your Web-Thermograph(s)

with power,
connected it to your network,
assigned it an IP address - which with WuTility is no problem.

1. HTTP GET Header enable disable

So that the units do not return the entire reply header (IP address, system name, sensor part number, temperature) but rather only the measurements itself, this option must first be turned off in the device configuration:

2. Incorporate PHP script into the Web page

Copy the JavaScript (shown in gray) from the following example,
e.g. into the <body> area of your Web page (PHP commands are interpreted at any desired location on the page).
Modify the red IP address, the green HTTP port and the blue query command to your purposes.

<html> <head> <title>Temperature</title> </head> <body bgcolor="#FFFFFF" text="#000000">

<? function getvalue($address,$sensorno){ $datei = fsockopen($address,80); $out = "GET /Single".$sensorno." HTTP/1.1\r\n\r\n"; fwrite($datei, $out); while (!feof($datei)) { $data = fgets($datei); } $find = "/r/n"; $pos = strpos($data, $find); $value = substr($data,$pos); echo $value; fclose($datei); } ?>

<br>

<? getvalue ("192.168.0.2","1"); ?>

<br>

<? getvalue ("192.168.0.3","1"); ?>

</body> </html>

3. Output

If you save the above PHO page on a PHP server and open it using a Web browser, you get the following view:

4. Automatic updating

To update the page cyclically, insert the following line into the <head> area of the page.
The interval is given in seconds (shown here in red: 60 seconds

<html> <head> <title>Temperature</title>

<meta http-equiv=refresh content=60>

</head> <body bgcolor="#FFFFFF" text="#000000">

...

5. Modify the page to your purposes

Using the above procedure you can simply create overview pages which can include any number of measurements:

To sample orders

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