LS VISION TECHNOLOGY CO.,LTD. Network Surveillance System Client Operating Instructions

Transcription

1 Network Surveillance System Client Operating Instructions 1

2 Directory 1. Overview Runtime Environment Machine Configuration Requirements Operating System Requirements Software Installation and Uninstall Software Installation Software Uninstall Landing Main Interface Device List Area Equipment Search Equipment Show Grouping Devices Patrol Talkback Picture Display Area Screen Switching Zones Interface Operating Area Interface Switching Zones Playback Video Search Area Recording Information Area Video Play Area Electronic Map Maps and Device Selection Area Map Display Area Alarm Query Equipment Selection Area Query Area Query Recording Area Device Management Device Added Login Settings Device Information Device Management Local Network PPPoE Device Port Date Media Set Encoding Scheme Image Configuration

3 9.5.3 Audio Configuration OSD Privacy Masking Video Output Device I / O Alarm I / O PTZ Alarm Configuration Motion Alarm I / O Alarm Alarm Interval Video Recording Policy Recording Logs Equipment Maintenance System Settings General Configuration Network Settings Permissions Settings Recording Management Recording Policy Storage Settings System Log FAQ

4 1. Overview Clients are mainly used in the monitoring center, duty room, receiving alarm room, command and dispatching room, etc, with real-time video surveillance, video parameter settings, network parameter settings and other basic functions, along with privacy masking, receive and process alarms, voice talkback, etc. advanced applications. Beautiful interface, performance and diverse, stable and reliable, easy to operate, is effective video surveillance equipment system client. 2. Runtime Environment 2.1 Machine Configuration Requirements CPU: P4 2.4 or more Memory: 1G above (2G or above recommended) Graphics: 256M dedicated graphics memory or more Graphics Display: support or higher resolution 2.2 Operating System Requirements Windows XP, Windows 7 family of operating systems 3. Software Installation and Uninstall 3.1 Software Installation Double-click the installation file to open the Client Installation Wizard. Next to continue the installation. Enter the installation path or click Browse to select the installation path. Next to continue the installation. 4

5 Select a file to generate path, or keep the default. Next to continue the installation. Select Install additional tasks. Next to continue the installation. Confirm the installation information, if there is no error, then click Install to install. Please wait for the installation process, After finishing installation, click Finish to exit the installation wizard, and the client application will display the desktop icon. 5

6 3.2 Software Uninstall Go to start menu, in the "All Programs" and find, click to start uninstalling software; or re- run the setup file to install to the same path to cover the original installation. Note: If you use re -install, must be installed to the same path then only can be overwritten. Before beginning uninstall dialog box will pop up to confirm the uninstall. [Yes] to begin the uninstall. Please wait for the process of unloading Tips Uninstall successful, click OK to complete the uninstall. 4. Landing Clients need to input a user name and password to login. Double-click the Client icon, pop-up login screen. Step 1: Input the correct user name and password (default: admin). Step 2: Choose your language (default: English). Step 3: Select login option (defaults: remember passwords and non-automatic landing). Step 4: login to login. 5. Main Interface After landing into the main interface (also known as the live preview interface). 6

7 Some Introduction of the main interface ribbon Interface Switching Zones Interface Operating Area Picture Display Area Equipment Search Screen Switching Zones 5.1 Device List Area The left side of the main interface device list area, In the search will be displayed here once to search for devices and equipment. While providing equipment grouped polling operation, equipment, search and display functions operate equipment. 7

8 5.1.1 Equipment Search Auto Search: search client device will automatically search for online devices. Manually refresh: Right-click the icon, and then click the "Refresh" for manually refresh the search. Device through the IP Search Polling operation Equipment Show There are two ways to display devices. First: to expand online devices, then double-click the, the device will In the picture display area. Second: Use the mouse to drag the device directly which is online to the screen display area, the device will be shown in the picture display area. Device is not online Device online Grouping Devices Right-click the device list, select "Add group" will increase the group, you can rename this groups, Use the mouse to drag the device to the packet, thus completing the device grouping Start talk & Modify Device Name the right mouse button in the position of the list,you can see start talk and modify device name Patrol There are two round robin manners. Consist of plenary and group round robin polling. All polling: All round robins are a list of all the devices polling the devices, including devices within the group. Right-click the device list, pop-up selection-box that can select Start patrol, pause and stop the round robin polling. 8

9 Round robin within the group: the group round robin is a device within the group round robin play the role of the group outside the device does not work. Right-click the group name pop-up selection box, check "Allow Carousel" and then click "Start Carousel" in round robin, click the "pause patrol" pause carousel, click on "Stop Carousel" to stop polling Talkback The function of talkback can be achieved talkback operation, Right-click the device eject the "Start Talkback", you can achieve talkback.(it only works with talkback enabled devices.) 5.2 Picture Display Area Picture display area is the video display area, with a variety of screen display, the screen can be up to 36 screens.the video display area have various operations, For example a single screen: In a single screen, the upper right corner is a picture control icon. As shown in the table: 9

10 snapshot button Record Button Monitor button PTZ control button Stream toggle button Close button Snapshot: the snapshot button, the current screen will snap down in the form of photographs Record: the record button to start recording the current device Monitor: the Monitor button, will receive the transmission from the device over the audio information PTZ control: the PTZ control button, you can rely on the mouse to control the PTZ Stream switching: -stream switching button, will switch the current screen for stream Screen off : picture Close button to close the current screen full-screen: For a single video screen, the mouse double-click on the video screen will be conducted within the toggle full-screen Screen zoom : Drag the mouse to select the area you want to magnify zoom, scroll mouse zoom ; right-click the mouse to select the recovery panoramic Screen mobile capabilities : the mouse to drag the screen to another screen playback screen frame can be moved Upper left corner of the screen is the current name of the device display area, if no name was the IP address of the device Lower left corner of the screen is the current device Stream type, resolution, and stream information display area Note: Please refer to the device according to the above functions may be specific functions 5.3 Screen Switching Zones Screen switching area is located in the upper left corner position of the interface, the main function is to switch screens and multi-screen switch the display. The icons corresponding to the function as follows: One picture screen Two picture screen Eight picture screen Nine picture screen Sixteen picture screen Twenty-five picture screen Twenty-five picture screen Full- screen area Previous screen Next screen Previous set Next set Screen switch: The client provides a screen, two screens, eight pictures, nine pictures, sixteen screen twenty-five screen thirty-six screen seven kinds of split screen display mode. Full screen display: the Full Screen button display screen, the entire display area is in full screen mode Previous screen and next set playback: grouping device, and when I click on one group or the 10

11 next group, it will be grouped Previous screen and next screen playback: Grouping devices for effective, when a group exceeds the number of devices currently displayed split screen, you can click on a button or next screen within the group split-screen display. 5.4 Interface Operating Area Interface operation area is located in the top right of the interface to control the client's locks, scaling and off function, the icon corresponding to the function as below: lock button Maximize button Minimize button eject button Lock Function: the lock button, the client is locked Inoperable, you need to enter the correct user name and password for the user name Code ( both default admin) for operation Minimize button : the Minimize button, the client is minimized Zoom buttons : the zoom button to zoom out or maximize client Exit button : the Exit button to exit the confirmation dialog box pops up, [Yes] to exit the client. 5.5 Interface Switching Zones Interface switch located just below the interface, the main functions of the client block, through the interface switch to toggle. Includes five functional areas: real-time preview, video playback, alarm queries, device management, and system settings. 6. Playback the "Playback" pop-up video playback interface. 11

12 Video Play Area Video Search Area Recording Information Area Video playback interface is divided into recording setup, video playback and video information three regions. 6.1 Video Search Area Video Search to select a device, select the path and choose the time to search for the appropriate recording conditions. 4-way Select Device: In the device list, select the device you want to search, you can press a single device checked, you can select by group or all checked. Note: The device cannot exceed the number of selected Select the path: Select the "local video." click search can be added Search path. to delete Search path Note 1: The remote recording functions may be required depending on the device Note 2: The need to add the path to the file under Rec Time Selection: the Start time drop-down field select the start time and end time click on the drop down bar select the end time. Note: The start time and end time interval must not exceed 7 days When the device, path, and time selection is complete, click can search for the corresponding video. Select Device Select the path Select Time 12

13 6.2 Recording Information Area Scrollbar Axis video content View video information area is mainly for recording status information and performs some playing information Icon in the region corresponding function as follows: Single-frame forward stop Video content axis Video content axis is described in the form of time to recording information,can obtain through the content-axis to record start time and end time, double-click on the blue area to select the video recording to starts playing. Video content axis zoom function. then click content axis to zoom in time axis, click button again to cancel zoom in. then click content axis to zoom out content axis, click button again to cancel zoom out. Scrollbar the scroll bar to move left or right axis video content, can also be pressing scroll bar scroll button by mouse to move the axis of video content. Video capture functionality In the video content you choose intercept the shaft area, right-click the mouse to select Export, complete the recording of intercepted after exporting 6.3 Video Play Area Playback status Non-playing status Playback icons control Play Timeline 13

14 In the area of video playback, you can control the video playback control icons, by playing the timeline shows the state of play. Icon in the region corresponding function as follows: Single frame backward Single frame forward Playback pause Stop Fast Backward Fast Forward Audio Single-frame playback: on a single frame forward or rewind button, video will play forward or backwardly Normal Play: to play, pause and stop buttons, which control the video playback, pause and stop. Fast-forward and fast-backward playback: the button to fast forward or fast backward, video will playback in fast forwarder or fast backward mode. This function provides 2, 4, 8, and 16 and so on four speed modes by clicking button incremental loop mode to control Audio: the audio button; recording will increase the audio playback, (determined by device function itself). Full screen: Double click the play area can switch the full screen. 7. Electronic Map the "E-map" to enter the E-map interface. Map and device Map display area selection area Electronic map that the operator or monitoring personnel clearly know the device location, extremely easy to use. 7.1 Maps and Device Selection Area Maps and device selection area is located in the left side of the interface, provide maps and device selection. Map Map Added: Right-click electronic map, pop icon. to add maps, the pop-up dialog box 14

15 , select the map. Increased map display in the list: Right-click the map in the pop-up list selection box operation, set the map provided. Remove the map, clear the device node, and rename operation. on the map, the map will be on the right side of the electronic map display area is displayed. Device In the device selection area, lists the discovered devices and equipment used to search, you can use the mouse to drag the device to the map. 7.2 Map Display Area Map display area is located in the right side of the interface; you can clearly see the maps and equipment situation. You can move the map location of the device, right-click the device and select Remove device click see real-time viewing. 8. Alarm Query the Alarm Query" to enter alarm query interface. 15

16 Query record area Equipment selection area Query area 8.1 Equipment Selection Area In the device selection area, lists the searched devices and searched devices once. on a device you can select, query the device alarm recording, The device's IP shows in query area device ip frame. 8.2 Query Area In query area by selecting the alarm's IP, time and type of query to query the alarm records, when the condition has been selected complete, click to start the query. Device IP: Select the device in the device area will display device IP. Time: By dropdown select the start time and end time. Alarm type: Select the type of alarm in the Dropdown. 8.3 Query Recording Area Query log area displays the query alarm information, including the device ID, device IP, alarm time, alarm source ID, the name of the alarm source and alarm type and so on. 9. Device Management "Device Manager" into the device management interface. 16

17 Equipment selection area Configuration operation area Configuration area Device Manager is a client for the device to set the parameters of management. For example, a single equipment operating instructions for device management: In the device selection area, select needed configuration device,then set device configuration. Note: When user uses selected device for the first time, will popup device login dialog box, input correct user name and password.( The default : admin),you can also set user name and password in login set 9.1 Device Added, into the device add interface: In equipment maintenance interface, you can view and maintain client devices. 17

18 Stored in the directory, there are three devices: a device automatically searched online, once discovered devices, and manually added devices. Check the device, click for deletion. In the input box to enter the device IP device's IP, click on, you can add a device in the directory. Control port default is (Tips: Control port: to are reserved port; please start from for multi cameras.) on A, you can manually search for the device. 9.2 Login Settings to enter login settings screen. Interface, you can view the device login user information 9.3 Device Information to enter the devices information interface. 18

19 Device Information provide the device name, device ID, device type, manufacturer name, device version and software version, can set device name. to confirm, click to refresh. 9.4 Device Management PPPOE, and device ports four parts. to expand device management directory, the directory includes local network, Local Network Device management interface home page default is local network interface; you can also click to enter In the local network interface, you can view and set the local network. DHCP: Select, gets dynamic IP,acquired IP DHCP will show up after setting Static IP: if user doesn t select, will 19

20 get static IP (default is static), you can edit and modify the IP address, subnet mask, and default gateway. Subnet mask default is Note: IP address and default gateway should be consistent DNS: Under static IP state, DNS can be editable; DNS can t be edited after getting IP automatically, but can be assigned automatically by the server. to confirm, click to refresh PPPoE to enter PPPOE interface: In the PPPOE interface, you can view and set PPPOE. Check, user names and passwords are in an editable state, you can set the user name and password (both get from the network service provider), after dialing successfully, you will get PPPOE IP address. Note: Above functions need refer to specific device Device Port to enter device port interface: 20

21 In the port interface, you can view and set the various ports. This interface can offer Http, RTSP, control port information check and set. HTTP: The default value is 80 RTSP: The default value is 554 Control Port: The default value is (Tips: Control port: to are reserved port; please start from for multi cameras.) to confirm, click to refresh Date to enter the Date Interface: 21

22 In the date interface, you can view and set the date. Time zone: In the Time zone drop-down box, you can select the time zone. Daylight Saving Time: Check enable daylight saving time, daylight saving time start and end times can be set in the state. on the drop-down menu every time, you can set the time element. As weeks Setting Page: After setting, click on the computer's time to give OK. Device time settings: Set the time to provide computer equipment calibration time and manual calibration time, click the corresponding button to set the device time. NTP: Check to enable NTP. NTP IP / DNS settings provide NTP server address, port provides port settings (default is 123). Settings can be given by clicking the OK button. Settings can be determined by clicking the button. 9.5 Media Set to expand Media settings directory. Contents include six parts such as Encoding Config, image configuration, OSD, privacy masking,video output and ROI Encoding Config Home media settings default interface is the local network interface, you can click to enter 22

23 Channel: Select the channel's name. Video Resolution: select the source resolution; click the icon restarting device. Stream ID: Select the stream. on the right to wait for Video Encoder: In the drop -down box to select H.264 Baseline, H.264 Main Profile, H.264 High Profile and MJPEG. Audio Encoder: In the drop-down box to select required audio encoding types, including G711_ALAW and G711_ULAW. Resolution: In the drop-down box to select the resolution, the resolution should less than the source resolution numerical values. GOP: I frame interval, range: 1-90, the default value is 50; set frame rate can t be less than I frame range. Frame rate: In the drop-down box to select the required frame rate range and default values which is decided by specific equipment. Encode interval: The default value is 1. Rate Control: offers three rate types: VBR, CBR and LBR. Bitrate: Set the attention range, the range depends on the specific circumstances. Quality: you can set the value of the video picture quality, which is relative to stream type. to confirm, click to refresh. Note: please pay attention to different parameter incidence relation and parameter range Image Configuration In the image configuration interface, you can view and set the content Image configuration provides video preview, the image settings will show up in the video preview. Configuration choice can expand through the right corresponding drop down. Basic settings: You can set the brightness rod, saturation and sharpness, by mirroring drop-down bar to select the required mage, including off, horizontal, vertical, horizontal +vertical. 23

24 Exposure: used to set the exposure, the exposure shutter mode configuration provides a fixed shutter and the maximum shutter settings, both through the pull-down bar, can select Settings, Default: Auto, 1/25 [50Hz]: 1/30 [60Hz]. Gain: Gain parameter is used to set the gain configuration provides a gain mode, fixed gain and maximum gain settings. Default: Auto, fixed gain: 0 Scene modes: used to set the scene modes, including five kinds of scene modes such as auto, Cloudy, Sunny,Fluorescent and Tungsten. WDR function can be selected as close, lowest and Highest. Flickerless: By selecting different frequency to overcome the image frequency flicker, which is caused by out of synchronization between image and power. There are 50Hz and 60Hz for selection, the default is 50Hz. Noise Reduction: Choose the strength of noise reduction, the default value is 50. Aperture: Auto IRIS and manual IRIS provides two modes. IRIS Speed can be selected. Day and night settings: day and night setting provides initiative, passivity,day mode,night mode and time switch. Threshold, night & day threshold and switching sensitivity settings. Day & night modes: automatic, day mode and night mode, the default is automatic Night colors: black and white, color, the default is black and white Day &night threshold: The default value is 60 Night & day threshold : The default value is 10 Switch sensitivity: lowest, lower, middle, higher, and highest, the default is high Note: The threshold settings need to be cautious, but Day &night threshold value must be greater than night & day threshold. to confirm; to reset, the image configuration parameter need restore default value OSD to enter OSD setup interface: 24

25 In the OSD interface, you can view and set various settings. OSD provides a video preview, will show OSD setting in the video preview. Configuration choice can expand through right corresponding drop down box. Basic setting: Basic setting provides Channel, Font Size and Alpha blending. Name and Time: Device Name, Row and Column can be setting. Custom: Custom is used to set OSD location and content. Our client offer six groups custom user for using. to confirm, click to refresh Privacy Masking into privacy masking setting interface: 25

26 In the privacy masking interface, you can view various settings about privacy masking Setting steps: Step 1: Check to enable privacy masking. Step 2: In the preview screen, drag mouse to select the masking area, click the right key to cancel the area selection (cancel one by one). Step 3: then pop dialog box appears click OK, masking function take effect. Step 4: Cancel check to disable privacy masking function. Privacy masking area need less than 5% of the area and the most region quantity is five. to confirm, click to refresh Video Output to enter video output setting interface: 26

27 In video output interface, you can view and set the video output. Video format: video format are used to set the video output format, provided both NTSC and PAL formats. to to confirm, click to refresh ROI to enter ROI setting interface: 27

28 9.6 I/O Device to to expand device I/O directory, the directory includes three parts, that is PTZ, Alarm I / O and Audio Config PTZ to enter the PTZ setting interface: In PTZ interface, you can view and set various settings. When the device has PTZ function, PTZ state can be set, you can check to enable PTZ, PTZ set on the client provides port, baud rate, data, stop bits, Check, PTZ protocol and PTZ address setting. to confirm, click to refresh. 28

29 9.6.2 Alarm I / O Alarm I / O interface is default home page alarm I / O interface, you can click to enter. In Alarm I / O interface, you can view and set alarm I / O Alarm input: Alarm input provides alarm input channel, alarm name and alarm valid signal. Alarm output: Alarm output provides an alarm output channel, alarm name, valid signal and alarm time settin. to confirm, click to refresh Audio Config to enter the Audio configuration setting interface: 29

30 In Audio Setting interface, you can have the audio-in settings. When the device has Audio, you can check to enable the audio-in, Audi-in Type is Line in, while the Volume can be selected. to confirm, click to refresh. 9.7 Alarm Configuration alarm and alarm interval. to expand alarm configuration directory, the directory includes mobile alarm, I / O Motion Alarm The default home page alarm configuration interface is mobile alarm interface, you can click to enter. 30

31 In mobile alarm interface you can view and set motion alarm. Check click on time setting interface. Time setup steps: to enable motion detection, then motion detection time and time zone can be set, to enter scheduled time setting interface, can set motion detection time in scheduled Step one: Choose detailed day of the week. Step two: Select the start time and end time, pay attention to the start time should be less than the end time Step 3: to add Time Step 4: Check the time in directory, and click to confirm to enter the mobile area setup interface, can detect the locale. Locale steps: Step one: Select moving area or ignore region. Step Two: In video preview area, drag mouse to select Step 3: Select detection sensitivity level (there are three levels, that is low, middle and high level) Step 4: to confirm setting or click to reset,meanwhile exit motion area interface I / O Alarm into I / O alarm setting interface: 31

32 In I / O alarm interface, can view I / O alarm and various settings. Check to enable alarm I / O, you can set the alarm time, click the to enter the scheduled time setting interface, you can set detection time. Check to enable alarm output. PTZ: can set PTZ channel, PTZ type and PTZ name setting. to confirm, click to refresh Alarm Interval to enter alarm interval setting interface : In the alarm interval interface you can view and set the alarm interval. 32

33 This is mobile alarm time interval; the default time is 10 seconds, click to confirm, click to refresh. 9.8 Video to expand video directory, directory, including video strategy and video logs in two parts. (Note: The video and the video system setting are not the same) Recording Policy to enter recording policy setting interface: Policy interface in the video recording policy can be viewed and set various settings. Channel: Select the video channel. Scheduling: Tick, you can choose 7 * 24 video programs or timer recording programs, including regular video and will need to click the time to set up. Alarm Log: check, you can set pre-record time, Syria recording time, linkage alarm input ID and linkage motion detection channels. Video rules: Choose video audio, stream ID, cycle write and keep the number of days. to confirm, click on to refresh. 33

34 9.8.2 Recording Logs into the video directory setting interface: In the video directory interface you can view various settings under the video directory, The information contained in: a disk name, disk type, bootable flag, available space, status, and file systems. to confirm, click on to refresh. 9.9 Equipment Maintenance to enter equipment maintenance interface: 34

35 button to reboot the device. button to reset the device operation. Check, the IP address after resetting. 10. System Settings the "System Settings" to enter the system setup interface. Configuration Options area Configuration area Through the system settings, user can view and set various parameters about client system, including five parts: general configuration, network settings, equipment maintenance, permission settings, video management, and system logs General Configuration click Home default system settings interface is a conventional configuration interface; you can also to enter 35

36 In the conventional configuration interface, you can view various conventional setting to about clients. In the conventional configuration, choose different configuration by checking, including seven configurations: automatic landing program, program automatic starts, recording service along with the program starts, automatic alarm information notice, automatic stretch video, video adaptive and if enable anti-cracks. At the same time you can view the version information Network Settings to enter network settings screen: In the Network Settings screen you can view and set the network settings. Alarm port: Input port number in alarm port box and can set alarm port number (default is 60001). Search Settings: Set search condition.). Search Settings: Set the search criteria. Search setup steps: Step One: Input starting IP, End IP and port (default 60001). Step two: to add to directory. 36

37 Step 3: to save data Permissions Settings to enter permissions settings screen: In the Permissions settings screen you can view and set the client's permission. Permission groups: Permission groups set different permissions group. User own same permission under the same permission group, the client provides five privileges such as video playback, alarm queries, device management, and system settings. Setting real-time preview, steps: Step 1: Input group name and group permissions description. Step 2: Check required permissions and select group permission Step 3: to add the directory of group permissions. Step 4: If you need to delete or modify corresponding permission group, click or to delete or modify User Management: User Management is a window for setting user information Setting steps: Step 1: Input user name and password, and confirm password Step 2: Select belonging group, describe the user Step 3: to add directory to user management Step 4: If you need to delete or modify user management,please select the corresponding user, click or delete or modify Recording Management to unfold video management directory, which includes video strategy and store settings 37

38 Recording Policy The default home page is recording policy, you can click to enter. Add the devce to list Select Device Set the rules of recording Customer can view and set client video strategy in recording policy interface. Select video device in area, click Add button to add to recording device directory. In the video equipment directory, you can check device to delete, start and stop video recording and so on operations.. Video settings area provides various video parameter settings. Stream Selection: Select stream in toolbox. Record audio: Check option button to record audio in the video. Disk full coverage: select whether the disk need full coverage. Remain Days: to select Edit to input required remain days in input box. Alarm recording: Tick enabled button, you can edit the pre-recorded and continuation time. Scheduling recording: Tick enabled button, you can choose full time recording and timer recording to set the parameters Storage Settings to enter the storage settings screen: 38

39 In store settings interface you can view and set the client storage. Setting steps: Step 1: to select the storage path or directly enter the storage path. Step 2: Set space size, the default value is 0M (which means all space). Step 3: to add the path to the directory store. Step 4: button to select the desired path, you can check to enable the storage path; also click or to delete or modify operation System Log into the system log interface. 39

40 Time-range system diary recording your actions on the system, you can view the recorded time, user, operation, equipment, IP, camera ID and device ID. Query steps: Step 1: Select the start time and end time. Step 2: Enter the user name. Step 3: Select log types, including five types, such as all types, video preview, video playback, system registry and system settings. Step 4: for logging, query results will appear in the directory. 11. FAQ (1) I am using Windows XP operating system, when my client records dozens of channels recording, the system will become very slow, and often lose the data, why is that? A: When customer recording reaches dozens of channels, we recommend using win7 or better operating systems for recording. (2) I want to playback my video data, but don t search. A: Check following points: 1. Recording directory is added correctly. (2) Whether is the device time synchronized with the PC? 3. Whether is the video enabled (3) When I connect computer to video browsing directly. I found the video become slow, and delay time becomes longer. A: Check whether the network access is standard, such as change a tested qualified. network cable 40

41 (4) Why am I watching a video, feel the system run very slowly, when I view the task manager, memory fluctuate and changes constantly? A: This is because graphics card drivers can t support graphics performance well. Please upgrade the graphics card driver to the latest version. 41