(1) Use low-radiation equipment.
Using low-radiation computer equipment is the fundamental measure to prevent computer radiation from leaking out. Because in the design and production of these devices, anti-radiation measures are taken for components, integrated circuits and connecting wires that may produce information radiation, so that the electromagnetic radiation of computer equipment is minimized, but the disadvantage is that the price of low-radiation computer equipment is relatively expensive.
⑵ Distance protection
Use distance protection method to maximize the safe distance of handling confidential computers. This method is only applicable to places where a large protective distance can be used. However, with the development of science and technology, the protection effect of this method is not ideal, and it can only prevent external theft but not internal theft.
⑶ Electromagnetic shielding technology
According to the amount of computer radiation and the needs of the objective environment, shielding the computer room or host parts is an effective measure to prevent the electromagnetic radiation leakage of classified computer groups. After installing the electromagnetic shielding room, the electromagnetic radiation signal can be enclosed in the electromagnetic shielding room, which has the best protection effect, but the electromagnetic shielding room is expensive. The computer room without shielding conditions can also control the area of computer radiation signals to avoid interception of radiation signals.
⑷ Computer electromagnetic radiation interference technology
According to the principle of electronic countermeasures, a jammer that can generate noise is placed next to the computer equipment, and the noise generated by the jammer propagates outward together with the information electromagnetic radiation generated by the computer equipment, so that the secret information contained in the electromagnetic radiation generated by the computer equipment cannot be restored. This is an effective measure to prevent electromagnetic radiation leakage of computer information system.
5] Use power filter.
The power filter is used to prevent electromagnetic signals leaked by computer equipment from propagating along the power line, resulting in leakage.
[6] Use optical cable or shielded cable.
The transmission line adopts optical cable or shielded cable to prevent electromagnetic signals leaked by computer equipment from spreading along the line and causing leakage.
When using computers to process confidential information, low-radiation computer equipment should be used or radiation safety technical measures such as shielding and interference should be taken.
First, use a computer with low radiation.
Using low-radiation computer equipment is the fundamental measure to prevent computer radiation from leaking out. Because in the design and production of these devices, anti-radiation measures have been taken for components, integrated circuits and connecting wires that may produce electromagnetic radiation, so as to minimize the electromagnetic radiation of computer equipment. Foreign countries have known the problem of computer radiation for a long time, formulated a series of safety standards, and manufacturers have also produced equipment that meets the standards in strict accordance with the regulations, but these low-radiation computers are prohibited from being sold to China. At present, China has been able to produce display screens with relative shielding measures and equipment with metal shielding cabinets in the main chassis, with less electromagnetic radiation.
Secondly, computer electromagnetic shielding technology is adopted.
According to the amount of computer radiation and the needs of the objective environment, shielding the computer room or host parts is an effective measure to prevent the electromagnetic radiation leakage of classified computer groups. Using metal shielding cage (also known as faraday cage) to close the computer room and grounding the metal shielding cage can effectively prevent the electromagnetic radiation of computers and auxiliary equipment. The computer room without shielding conditions can also control the area of computer radiation signals to avoid interception of radiation signals.
Thirdly, computer electromagnetic radiation jamming technology is adopted.
According to the principle of electronic countermeasures, it is an effective measure to prevent the leakage of computer electromagnetic radiation by adopting certain technical measures to interfere with computer radiation information and increase the difficulty of receiving and decoding. At present, there are two main methods to interfere with electromagnetic radiation: white noise interference and correlation interference.
I don't know your specific situation, I can only give you a rough idea. If the radiation standard of the main engine does not meet, a high-density radiation-proof chassis shell can be purchased separately, and the radiation can be effectively reduced to a very small safety value in the future. Many other materials quoted on the computer should be explained, hoping to be useful to you.