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Method for receiving and displaying image data of kilomega network by using upper computer

A technology of image data and display method, which is applied in the field of data communication, can solve the problems of high data packet loss rate, discontinuous image display, image frame loss and other problems of gigabit network, achieve real-time display and storage convenience, and reduce core data loss Chance, the effect of reducing the time to process packets

Inactive Publication Date: 2013-08-14
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] The present invention solves the problems of high packet loss rate and image frame loss in receiving Gigabit network data by existing network programs, such as the lack of certain lines in the image, discontinuous image display, etc., and provides a Gigabit network host computer image data reception display method

Method used

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  • Method for receiving and displaying image data of kilomega network by using upper computer
  • Method for receiving and displaying image data of kilomega network by using upper computer
  • Method for receiving and displaying image data of kilomega network by using upper computer

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Embodiment Construction

[0017] combine figure 1 and image 3 Description of this embodiment, a method for receiving and displaying image data of a host computer on a gigabit network, comprising the following steps:

[0018] (1) Configure relevant parameters;

[0019] (2) Receive the image data and save it to the user buffer;

[0020] (3) Reassemble the data packet into an image;

[0021] (4) Display the received image on the host computer screen.

[0022] Step (1) of this embodiment configures relevant parameters, specifically: using winpcap for secondary development to replace the traditional socket communication method, not only can only receive the required data packets, but also can overcome the loss of the socket method in the case of a large amount of data Package problem, the configuration process of its main parameters is as follows:

[0023] a. Open the communication network card device, pcap_t*pcap_open(constchar*source, intsnaplen, int flags, intread_timeout, structpcap_rmtauth*auth,...

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Abstract

The invention discloses a method for receiving and displaying the image data of a kilomega network by using an upper computer, and relates to the technical field of data communication. The problems of high packet loss rate and image frame loss such as the deficiency of certain lines in an image, image display discontinuity and the like when the conventional network program is used for receiving the data of the kilomega network are solved. The method for receiving and displaying the image data of the kilomega network by using the upper computer comprises the following steps of: configuring related parameters; judging whether the image data is to be received or not, receiving and storing the image data into a user buffer if the image data is to be received, otherwise quitting; judging whether an integral image is received or not, reorganizing a data packet into an image if the integral image is received, otherwise continuing receiving the image data; and displaying the received image on a screen of the upper computer by adopting a double buffering technology. According to the method for receiving and displaying the image data of the kilomega network by using the upper computer, hundreds of Mbps of data can be received, the packet loss rate can be effectively lowered, and obtained images can be continuously and stably displayed on the screen of the upper computer.

Description

technical field [0001] The invention relates to the technical field of data communication, in particular to a method for receiving and displaying image data of a host computer on a gigabit network. Background technique [0002] Gigabit network bit computer image data reception and display is to receive image data through the library function provided by winpcap and display it in real time. The core content is the secondary development of winpcap and the application of double buffering technology in image display. This method can be used to realize receiving and displaying image data at a speed of several hundred Mbps. [0003] The image resolution of traditional surveillance cameras is low, and it is difficult to meet some application occasions with special requirements. Using the network to realize the transmission of high-resolution and high frame rate video images is an important idea of ​​video surveillance systems. However, there is currently no host computer receiving...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/20H04N7/18
Inventor 刘博超赵建孙强曲锋刘建卓
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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