In many project backgrounds, we often use the central control system to use ipad or other wireless touch screens to control the computer's power on/off or the computer to play a video sound file pause, play, etc., at least we often encounter Use the central control system to control the computer switch machine right? The following Guangzhou Ou Yali Information Technology Co., Ltd. introduces you to the four control methods commonly used by our company:
The picture above shows: oyalee / Ou Yali SY-PRO2 programmable central control host
1, using RS232 docking on-site computer control mode Some computers We know that he has a serial port card, with RS232, or a computer without RS232, we can also use USB to serial port to achieve control, how to achieve this control method? The serial port of the central control is connected to the serial port of the computer, but the computer has to set up a serial port command program, which can be realized by making a small software. The serial port of the control unit sends an instruction, and when the computer serial port receives the instruction, the computer performs some operations.
2, using infrared control to achieve computer control computer generally does not have infrared remote control function, and our central control system has infrared control function, how to achieve it? Utilizing USB to infrared control module, this module is generally cheaper, can realize the central control system to control the computer's switch machine, and can also call the specific player of the computer system, such as thousands of listeners, storm video and audio operations, Play pauses last, next, and so on.
3, the use of the power control closed switch to achieve control using the relay closure and port characteristics to achieve computer boot and shutdown, but this has a certain damage to the computer, but most companies in the market are using this program , directly cut off the power supply of the computer.
4, using the network transponder to achieve control This control method, if it is for a computer, may be relatively high cost, this is a network 485 transponder, set the computer IP in the LAN to a fixed, for example, send OFF1 code To the transponder, then the computer corresponding to the 192.168.1.100 of the local area network is shut down, and the corresponding ON1 code is sent to the transponder, and the computer corresponding to the 192.168.1.100 of the local area network is booted. This control is related to the chip memory of the transponder, generally one forwarding The device can control more than 10 computer switches, and the relative cost will be higher.
Guangzhou Ou Yali Information Technology Co., Ltd. was established in the early 21st century (hereinafter referred to as oyalee / Ou Yali), specializing in digital audio systems, video signal processing, intelligent control system solutions and their design, research and development, production, sales and service. Focusing on the digital Control+Video+Audio (control+video+audio) field, the company is committed to providing customers with modern audio and video solutions to enhance the efficiency and quality of people's information communication.
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