A method for calculating channel switching time using image freeze detection.

Abstract

The invention relates to a method for calculating channel switching time in set-top box (STB) devices using image freeze detection.

Description

1 TARIFF A method for calculating channel switching time using image freeze detection. Technical Area The invention uses image freeze detection in STB (set-top-box) devices. This relates to the method of calculating channel changeover time. 5 State of the Art Regarding methods for calculating channel changeover time, current practices include: instead of image processing techniques, it sends signals from the network after pressing the TV remote. IGMP (Internet Group Management Protocol) packets By analyzing, IGMP leave group and IGMP join messages 10 The difference between them is calculated as the channel changeover time. Maximizing customer satisfaction. To provide a high level of service, measurement should be based on the end-user experience. To do this, analyzing the messages on the network is not sufficient. Network By listening to packets and analyzing IGMP messages, the main gateway (Home) The time it takes for the gateway device and the set-top box device to process incoming requests is channel 15. The changeover time is not included in the calculation. Therefore, channel changeover... The duration cannot be calculated accurately. In conclusion, due to the negative aspects described above and the current solutions being the subject of discussion... Due to its shortcomings, an improvement is needed in the relevant technical field. It has been made. 20 Purpose of the Invention The invention was created by drawing inspiration from existing situations and overcoming the aforementioned drawbacks. It aims to solve the problem. The purpose of the invention is to improve the clarity of images received from an STB (Set-Top Box) device. The channel replacement time is calculated by analyzing the freezing times. 25 The invention relates to the channel switching time of set-top box (STB) devices. It aims to measure the performance it has demonstrated in the most accurate way. The subject of the invention 2 Thanks to the benefits provided by this method, the accuracy of the tests increases, and time is saved. The aim is to prevent losses and improve the quality of test reporting. According to the method described in the invention, the purpose of the invention is to provide access to telecommunications companies. During channel changeover time tests of STB devices located in the infrastructure Accurate measurements eliminate potential human error. By removing the visual testing processes that were previously done manually, the testing processes can be accelerated and made more realistic. The process involves testing the devices on the access network and obtaining results. Instead of performing packet analysis, channel switching is based on the end-user experience. During this process, image freezing conditions are used and image processing methods are applied to the STB device. By analyzing the image coming to the customer's television via HDMI connection on the server, 10 Determining the image freezing time and calculating the channel switching time. This is being done. In this way, the incoming signal from the main gateway device and the STB device... Accurate measurement is achieved by including packet processing time in the calculation. is being carried out. To achieve the objectives described above, a test network, OLT device, ONT device, 15 a mirror switch, HGW device, STB device, HDMI video capture device, and server included This is done via the system, using image freeze detection on STB devices. A method for calculating channel changeover time has been developed, and the method in question is as follows: - USB connection and mirroring from HDMI video capture device to the server After the Ethernet connection from the switch is established, the software on the server will run for 20 seconds. operation, - the software crops the images coming from the HDMI video capture device, - then the cropped image is converted from RGB format to black and white format translation, - In the image converted to black and white, the frames are the same as the previous frame: 25 comparison with, If consecutive frames are the same, a counter is started. - continued comparison of the frameworks, - analysis of IGMP packets arriving during channel switching from a mirror switch Continuous background operation, 30 - if there are consecutive frames and the IGMP “Leave” message is detected on the mirror switch If this has happened, it should be considered as a channel change. 3 - stopping the counter when the frames diverge and the time elapsed in between Calculated as channel changeover time. It includes the steps involved in the process. The structural and characteristic features and all the advantages of the invention are given in the figures below. Thanks to the detailed explanation written with references to these figures, 5 is clearer. This will be understood, and therefore the evaluation should also take these forms and detailed explanations into consideration. It needs to be done by taking precautions. Figures that will help understand the invention. Figure 1 shows the relationship between the elements used in the method that is the subject of the invention. This is a representative diagram showing the situation. 10 Explanation of Part References 1. Test network 2. OLT device 3. ONT device 4. Mirror switch 15 5. HGW devices 6. STB device 7. HDMI video capture device 8. Server Detailed Description of the Invention 20 This detailed description explains that the invention refers to set-top box (STB) devices. The preferred method for calculating channel switching time is using image freeze detection. the structures that have been established are solely for the purpose of better understanding the subject. It is explained. 4 The system that enables the implementation of the method described in the invention consists of the following elements: It includes: - test network (1), - OLT device (2), - ONT device (3), 5 - mirror key (4), - HGW device (5), - STB device (6), - HDMI video capture device (7), - server (8). 10 The test network (1) is located in the PON (Passive Optical Network) automation system. It provides access to devices. The OLT (Optical line terminal) device (2) is in the PON system. It is the central device. The ONT (Optical Network Terminal) device (3) is where the fiber terminates in the PON system. It is a device. Mirror switch (4) (mirror switch) displays network packets coming from / going through a port. It is a switch that multiplexes another port. The HGW device (5) provides service to the customer in the PON system. It is a device that provides (internet, IPTV, voice). The STB device (6) is connected to the HGW (main gateway) device. It is the device that provides the connected IPTV service. HDMI video capture device (7), HDMI (High Definition: Multimedia Interface (High-resolution multimedia interface) input: USB It enables conversion as output. The server (8) from the HDMI video capture device (7) Based on the images it captures, it calculates the image freezing time. Also, mirror 20 Since the IGMP packets coming from the switch (4) are analyzed and channel switching is performed It makes sure there is no freezing in the image. The invention concerns image freezing in STB (Set-Top-Box) devices (6). The working principle of the method for calculating channel changeover time using detection is as follows: It is as follows: 25 - In order for the invention to be put into operation, the server must have (8) HDMI video capture USB connection from device (7) and Ethernet from mirror switch (4) After the connection is made, the script is run on the server (8). is required. - The software (script) captures images from the HDMI video capture device (7) 30 It crops the ads, preferably to 400x400 pixels. This cropping process enhances the ads. (banner) and logos are not included in the calculation based on the broadcast image. It enables the transaction to be carried out. - The cropped image is then RGB (red-green-blue) It is converted from black and white format. - The frames in the image converted to black and white are self-contained. It is compared with the previous framework. - If consecutive frames are the same, a timer is started. 5 - The frames continue to be compared. - Analysis of incoming IGMP packets during channel switching from mirror switch (4) It is being done continuously in the background. - If there are consecutive frames and the mirror switch has IGMP “leave” If the message is detected, this is considered a channel change. Frames 10 When the channel changes, the counter stops and the time elapsed is the channel change time. It is calculated as follows.

Claims

6 REQUESTS 1. Test network (1), OLT device (2), ONT device (3), mirror switch (4), HGW device (5), STB through a system including device (6), HDMI video capture device (7), server (8) Channel switching was performed using image freeze detection on STB devices. It is a method for calculating the duration, and its characteristic is: 5 - USB connection from HDMI video capture device (7) to the server (8) and After the Ethernet connection from the mirror switch (4) is made, on the server (8) running the software, - the software crops the images from the HDMI video capture device (7), - then the cropped image is converted from RGB format to black and white format 10 translation, - frames in the image converted to black and white are the frames preceding each other. comparison with, If consecutive frames are the same, a counter is started. - continued comparison of the frameworks, 15 - IGMP packets coming during channel switching from mirror switch (4) the analysis is constantly being done in the background, - if there are consecutive frames and the IGMP “Leave” message is detected on the mirror switch If this has happened, it should be considered as a channel change. - The counter stops when the frames diverge, and the time elapsed between them is 20 Calculated as channel changeover time. It includes the steps of the process.

2. This method complies with Claim 1 and its characteristic is that the software receives data from an HDMI video capture device. (7) In the process step of cropping the incoming images, preferably the images mentioned are It is cropped to a size of 400x400 pixels. 25

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