The current mobile phone signal is almost everywhere, and all electrical equipment is surrounded by it. When the mobile phone is not in use, this surrounded signal will cause minimal interference to other electrical equipment. This is because when the mobile phone is not in use, there is no data exchange between the mobile phone and the base station, and it is impossible to form a sudden change signal. The electrical equipment is surrounded by a relatively stable electromagnetic field, that is, a static electromagnetic field. The interference of this static electromagnetic field to the electrical equipment is almost zero. When using a mobile phone, there is a data exchange between the mobile phone and the base station, which generates a random mutation signal, causing a dynamic electromagnetic field to form around the electrical equipment. This dynamic electromagnetic field signal will induce a mutation interference signal, which is easy to Cause dysfunction of electrical equipment. When the battery of the mobile phone is started, when the bell rings, it can generate enough energy to cause a slight spark to generate electric sparks, which may cause a fire.
Petroleum, chemical industry, and other relevant departments have clearly stipulated that gas stations prohibit the use of mobile phones. It has been a long time since the introduction, but the current implementation is not ideal. The equipment at the gas station is controlled by a computer. The signal from the mobile phone will affect the normal operation of the equipment and cause inaccurate measurement. More importantly, sparks will appear during the call from the mobile phone, which can easily cause a fire and cause the gas station to explode. Therefore, the gas station that is a fire-resistant place not only strictly prohibits the use of mobile phones in the station, but also does not use mobile phones within two or three meters around the gas station. At the same time, gas stations should set up obvious signs prohibiting dialing of mobile phones, and widely publicize knowledge, so that people understand that mobile phones are undoubtedly walking with tigers in gas stations.
Fires caused by the use of mobile phones occur every day all over the world. Relevant departments have recommended the use of cell phone jammer at gas stations under their jurisdiction. The electrical signal emitted by the mobile phone signal jammer is also an electromagnetic signal, and this electromagnetic signal does not have any equipment to exchange data with it, and it cannot form a sudden change signal. The device will not cause interference and is harmless to humans. In particular, the explosion-proof mobile phone signal jammer can not only shield the mobile phone signal and prevent the danger caused by mobile phone communication, but also prevent itself from becoming a dangerous factor in the gas station.