| The early handheld device is simple technical, single function and being lack of network communication function. With the development of society, the handheld devices have been unable to meet the people’s daily needs of information exchange and the needs of industry. However, with the development of embedded technology and the great improvement of the embedded CPU performance, the function of the handheld device becomes more and more rich which continually meet the people’s entertainment consumption and industrial demands. The Mobile Internet is the trend of the internet in the future. And now, more and more mobile devices integrate many functions such as conversation, messages, community news, webpage browsing, E-mail functionality and accessing to the Internet through wireless networks.At the present time, the demands of electric power in our country increase rapidly as well as the electrical equipments and power lines. Power lines and poles in the wild environment for long-term often encounter the damage to the natural calamities such as flood, earthquake, wild wind,strike of thunderbolt. If these facilities occur accident, they will bring the enterprise and people great loss. Therefore, regular inspection transmission equipment is particularly important.The inspection system researched in this thesis can read GPS data through the serial port and take pictures for the scenes and save them to the equipments. Besides, this paper has used the scheme of ASP+COM to achieve reading data in the long range, which improves efficiency of the equipment management in the Electric Power Departments.This specific research contents in this paper have some following aspects:1. This paper introduces the loading driven process of Windows CE6.0, architecture of the driven and development method of Windows CE6.0. And using Visual Studio2005develop the driver and application of Windows CE. This paper Uses Platform Builder to customize kernel and choose the components you want to recompile and download.2. This paper analyses the communication mechanism between the MDD layer and PDD layer and analyses the effects which the driven program of standard stream interfaces have on a layered driver through the study of architecture of serial port driver. This paper realizes the function of sending and receiving data and controlling the hardware of serial ports by a number of serial port functions.3. This paper using Visual Studio2005development platform designed Windows CE application layer interface, and the GPS data from the serial port is parsed and displayed.4. In order to achieve real-time to read the field data, this article using the scheme of the ASP+COM implemented long-range reading serial port data. This paper made an in-depth study of the transmission of commands and data among ASP page, COM control and the bottom driver. The attributes of Open、Port、BaudRate、DataBits、StopBits、Parity and method of Close were added for COM. In the function of open attribute, this paper calls OpenPort function in serial category in order to open the bottom serial driver program. Hence, we can obtain a serial GPS data and Whereafter, we checked the validity of GPS and parses out its latitude and longitude, which are packaged into a safe array for web calling. In the Internet, any remote client (PC) can read the serial port data of handheld devices and display them in the form of webpage.5. This paper researches the driver principle of Camera. The application achieve the functions of real-time video monitoring and capture image. |
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