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An easy Approach to a Vigilance Software
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There are several vigilance software packages in the market today, and they cost as good as the worth the goods that are kept safe with them. This article describes how effectively and at a very low price you can build up your own vigilance software yourself, using Java SE and Java Media Framework with little helps from opens source APIs like SMSLib and employing a simple GSM Mobile Phone with a PC-to-Mobile interface like USB Data Cable or Infrared Adapter or even Bluetooth.
The software being spoken of is effective in places like a Bank Vault where nobody is supposed to enter beyond some stipulated office hours, hence ensuring almost no movement of any object therein. There shall be a Web Camera or any Digital Camera that can be attached to a PC running a Software that continuously monitors the chamber or the doors of the vault or wherever the camera is kept focused at, and whenever the movement parameter exceeds a threshold value, it sends SMS to the Mobiles of the concerned security personnel and blows of an Alarm heralding about a possible intruder in the chamber and also starts monitoring and recording the moving portion of the scene with moving object detection policy maintained by the developer of the software.
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A generic and robust framework for carrying out Reverse AJAX
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It's regarding my stable and robust framework cum API for carrying out reverse AJAX on a Comet like server push pattern.
It's a much talked about technology steadily advancing but there exists till date, as far as I know, no such generic framework which can be used with any Servlet-JSP container (J2EE 1.3+ App Server) like Tomcat, Websphere, GlassFish, Weblogic and so on without much concern for browser compatibilty. The idea of reverse AJAX and Server Push can be traced in google and although the concept is quite easy or at least so it sounds, yet the implementatioin requires much beyound an ordinary trick can server. I want to share this idea with Java-tians worldwide through Developerworks. This API would undoubtedly help web application developers code without caring the least for server side complexitites like threadings etc may involve.
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Make your Camera Bluetooth Mobile Serve as Spy Camera:Soham Sengupta
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The author depicts in this article how one can, using the power of Java ME, make one’s Bluetooth enabled Camera Phone serve as a Spy Camera to keep a vigil on a target and monitor it on a PC, a desktop or a laptop, from within the range of the Bluetooth Device, which can be as far as 100 meter, or roughly 300 feet. All one requires to achieve this goal, are a Software running on the Bluetooth enabled Camera Phone and another counterpart running on the PC on which the vigilance target it monitored.
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A Java API that allows to send receive-and-process text SMS using a GSM Modem
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I've designed a Java API that allows you to send and receive-and-process text SMS using a GSM Modem, maybe, a GSM handset, connected to the PC over Data Cable, Infra Red Adapter or simply Bluetooth. Let me explain how this API, which has already been tested on several cost-effective devices, like Samsung-SGH-B520, is superior to its counterparts, like SMSLib and JSMS which fail to receive SMS mainly due to the fact that Mobiles these days do not store SMS in SIM but in "ME" (Phone Memory).Using this API, the above challenge is cunningly faced.And using this, you can customize an event which would be fired on receiving a new SMS. By using this, I devised a system in my Institution, where 200 final year B.Tech CSE/IT students just Sent SMS containing their roll nos. to a number of mine and got their marks
in reply.
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Challenge-Response to add to Bluetooth Security
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Bluetooth API for Java JSR-82 provides inbuilt security features, yet we may add to it
for different reasons like the master and slave device being vulnerable to be "SPOOFED" in any means.
The abstract deals with how to enhance the security of both, by incorporating Challenge-Response
mode of interaction.
Challenge-Response basically requires any of the devices, after a connection is established, to send
a Random Number known as Challenge to the other, which receives, then performs some algorithm on the number to generate
the response. The algorithm is one which both the devices have mutually agreed upon and have a copy
of a program that performs the computation accordingly.
The rsponse is sent to the former device that sent the challenge and if the device finds that the response
is coinciding with the value which it has also calculated, meaning that the device it is talking to too
has a copy of the algorithm, i.e. it's a friend device, the communication starts else disconnects.
Clcik for Implemetation binaries
Source Code
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