Abstract
Abstract In order to expedite the development of the control network, according to the newest fruition of the internet, the hardware and software of the system is designed. Since the resource of the sever in embedded remote control system is limited, an approach is presented which use CGI and XML technology to realize remote monitoring computer and embedded Web server for dynamic interaction. Combined with the basic requirements of embedded remote control system, the idea of component design is proposed, the major components of system functions are defined. According to the system functional requirement, the software is designed and realized. The practice prove, the scheme realize the remote control of the transmitter by the small cost. And the system is convenient and safe. The definite reference value is offered to the offspring complex remote control system.
Highlights
With the development of information network and innovation of technology, the remote control is no longer refers to the LAN remote control, but it is based on information network remote control [1,2]
Users who are in the client use the browser to access the embedded WEB server, the data is sent to embedded WEB server by the HTTP protocol and the WEB server embedded as a PC automatically encapsulate serial data which is transmitted from the programmable controller PLC as TCP or UDP, which is transmitted in the network
Users login the embedded WEB server by a browser, and enter into the Control page, go to the control operations in the corresponding form, click on the submit button, the data is transferred to the embedded WEB server, and the control command which were obtained by the serial handle of the embedded WEB server is sent to the lower machine, the browser is as a receiver to receive the feedback information from the lower machine
Summary
With the development of information network and innovation of technology, the remote control is no longer refers to the LAN remote control, but it is based on information network remote control [1,2]. The embedded WEB server which is used in control system makes the information collection and dissemination integration into embedded devices to simplify the structure of the control system, and uses standard interfaces of embedded WEB server and the standard communication protocols, to provide operation and control interface which is unified and browser-based for users who any access to[9]. This way fundamentally changes the operation of equipment and management, reduces maintenance cost of control operation, and improves the efficiency of maintenance of control system. Information network is introduced into the control network to achieve a real-time remote control which is based on information network, and provide a new reference method for the design and implementation of a remote control system [10,11]
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