It's very detailed here! You can look at it, there will be a lot of harvest! It can also solve the problem for you!!
中国味道 凤凰传奇Reason and solution of mouse disorderly flight
One, the mouse problem
I have met the problem of mouse auto fly more than once, and I believe other friends have also encountered it. It's a small problem, but it can make a lot of trouble for you. Here, I solve this problem with theoretical and practical analysis.
First of all, let's talk about software failures. Talking about here, you will immediately think of the system infection of the virus, or the mouse flooding and operating systems conflict. But there is another reason, probably not everyone has ever met, that is, you have a Trojan horse, the system for remote control of others. For such problems, it is recommended to use floppy disk in DOS antivirus, if not valid, please reinstall the system. In addition, if your computer often surf the Internet, it is recommended to download THE CLEAN software to kill Trojan horse.
每次都想呼唤你的名字
Next, let's talk about the more complicated hardware failures. First of all, we should be familiar with the working principle of the mechanical mouse: by moving the mouse, driven by the rubber ball, rubber ball and rolling friction level in mouse and in charge of vertical direction of the two roller gate, gate driving wheel. The grid wheel rim is grid shaped. Adjacent to the grid wheel grille, one side is an infrared light emitting张信哲重庆演唱会
diode, and the other side is an infrared receiving module. The infrared receiving module is a 13 terminal device, which contains two infrared receiving tubes. There is a pressing wheel in the direction of the angle between the horizontal and vertical grid wheels, which makes the rubber ball always press on the two grid wheels, no matter where the direction is rolling.
Connect to host via ps/2 port or serial port. The interface uses four lines, respectively, power, ground, clock and data. In normal operation, the movement of the mouse is converted to the rotation of the horizontal and vertical grid wheels in different directions and speeds. When the grid wheel rotates, the teeth of the grid wheel periodically block the infrared ray emitted by the infrared light emitting tube to irradiate the tube and the tube in the receiving component, so that the output of a and B outputs the electric pulse to the control chip inside the mouse. Because the infrared receiving module and two pipes are arranged vertically, the gate wheel tooth clamps in the direction of infrared
transmitting and receiving middle portion of the direction, and a receiving angle tube and the infrared transmitting tube is not zero, then B tube output electric pulse has a phase difference. The mouse control chip through the pulse phase difference to judge the direction of rotation of horizontal or vertical grid wheel, through the pulse frequency to judge the rotation speed of the wheel gate, and continue through the data line to the host mouse information, the host through the cursor on the screen with the mouse to move.
When the computer starts, the windows initializes the mouse through the interface. If there is a broken line in the mouse
cable, the host will give the mouse not installed. Please shut down the information of installing the mouse. If the mouse connector or mouse cable is not touched properly, the mouse system will die.
Knowing the basic working principle of the mouse, here we will discuss why the mouse pointer will be fluttering:
Pointer movement shows that the mouse sends the mouse movement information to the host through the serial data line, but the mouse does not move at this time. How can the mouse chip send the mobile data? The reason is that the relative position between the middle infrared transmittin
g tube of the mouse and the gear of the grid wheel and the infrared receiving component is not proper, and the power supply voltage of the host sent through the interface is not matched well with the three mouse. When a moment in a mouse wheel in the gate stopped receiving module two B tube has the same voltage position, and the voltage is to determine the threshold voltage to the mouse chip identification bright and dark signals, the voltage may be identified as mouse chip light, may also identify dark. If the mouse on a chip tube output recognition as a bright signal, B tube output for dark signal, mouse based on signal processing, and chip processing will cause the receiver output voltage and mouse chip receiving tube component of a light dark discrimination threshold small changes. Because the mouse chip is also a clock driven digital circuit, its identification of the signal also has a clock cycle, the current identification cycle is coming,
The discriminant result is a dark second is bright. So far, the
recognition results of the two recognition cycles of the mouse chip are different, so the chip obtains the information of the grid wheel rotation. In this process, the pointer moves rapidly and uniformly in one direction until the edge of the screen.
The key lies in the optical signal voltage supply voltage delivered to the host mouse launch a mouse
in the infrared emission tube in infrared photosensitive component in two B of photosensitive tube produced just in bright and dark discrimination mouse chip signal recognition threshold cut-off point. This point is very coincidental, so the emergence of mouse pointer swimming is also very random, sometimes may not appear for a few days, and sometimes occur frequently. This fault generally occurs only in one direction. Because the fault is also related to the output power of the host interface, it is possible that a malfunctioning mouse on one machine works on another machine.
Solution: check the hardware aspects of the hardware, there is no conflict (such as Modem and other peripherals) and then try to check your mouse interface needle is bent and broken, then open the mouse, to see if there is dirt or winding twist? Clear it up and try again. Or, try it on other computers to see if the fault is still there. Do you have any information about hardware failures?. If not, only adjust the corresponding direction of the infrared transmitter tube, the infrared receiving component and the relative position of the grid wheel, to see whether it can be restored. The last move is to buy a new one.
Two, virus invasion
My mouse recently sometimes casually move, do not listen to command. I suspect there is a virus or
出人头地歌词Trojan like, so use Kingsoft, iparmor5.33, the cleaner killing, were not found to have problems. But I found several tasks with no path, version, and any information under the "system information - running task" (see Annex). Do not know and this has not shut, ask these three tasks is what things, can delete, how to delete? (2002-3-3)
Answer: This is a NIMDA virus. The solution is as follows:
A. detection and removal
* check if there p p.exe files in the temporary folder, and XXXX is a string that is randomly composed of subtitles and numbers
* check whether C:\, D:\, and E:\ exist httpodbc.dll files
* is bandwidth heavily occupied?
In Win 9x/ME system, is there file in the许嵩寻雾启示
琉璃月简谱\Windows\system directory?
In the Win NT/2K system, is there hidden file in the \Windows\System directory?
It is recommended that you download Symantec and Trendmicro killing Nimda_E virus tools for detection and removal
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