Industry Analysis of Night Vision Devices
1. Building outline display
Today, anti-drug operations are becoming more and more complicated, and planting in many places has shifted from outdoors to indoors, which adds a lot of trouble to law enforcement officers in investigating and collecting evidence. The application of night vision technology solves this problem, because a large halogen lamp of 1 kilowatt is used for indoor planting to provide the light and heat needed for growth. While these lamps are heating the interior of the building, the heat will radiate to the outer surface of the building, and the heat can be seen volatilizing through the thermal imaging camera, thus helping the police in the anti-narcotics operation.
2. Complete rescue missions and search for fugitives
The missing persons or fugitives can be searched for all night with micro-light mirrors and thermal imaging cameras. People are strong radiators of heat, and it is easy to determine their position with a thermal imager. Thermal imaging can also be used to spot people hiding in cover. For example, when the Georgetown Police Department was escorting two criminals, their negligence caused the criminals to escape, so the police immediately launched a pursuit operation. One of them fled to an overgrown area and hid. The police passed the place where the criminal was hiding three times, but failed to find it with a flashlight. Finally, using a handheld thermal imaging camera produced by Raytheon, the criminal was caught in only 25 seconds.
3. Ensuring Police Safety
Using night vision technology, officers can spot suspects at night without being seen. In one case in California, DEA law enforcement officers used thermal imaging cameras to monitor a gang suspected of clandestine drug manufacturing operating from a stronghold in the mountains. Every night, they have to go out to look for the police who are watching them in the woods. The police officers use thermal imaging cameras in the woods to keep themselves from being discovered by the gangsters and ensure their own safety.
4. Vehicle Tracking
Vehicles emit a great deal of heat both during and after use. Heat radiation comes not only from the engine, but also from tires, brakes and exhaust pipes. A police helicopter equipped with a thermal imaging camera can track a suspect's vehicle from the air, even without its lights on. Patrol cars equipped with on-board thermal imaging cameras can also track suspect vehicles that have entered the parking lot or have moved away by detecting the heat dissipation of the vehicle that has just been turned off.
5. Find messy surfaces
The restored soil surface may not be visible to the naked eye, but it can be seen with a thermal imaging camera, because when a surface is disturbed somewhere, the thermal profile of the surface is also destroyed, and the thermal radiation of the turned soil is also related to Compacted soils are different. Buried objects can be found with this feature of the thermal imager. The police once dealt with such a case. A man killed his wife in a fit of rage. In order to cover up the evidence, the man buried the body in the backyard and covered the burial site with turf. The body was quickly found using a thermal imaging camera. Today, law enforcement agencies are already using thermal imaging cameras to find victims' burial sites. It is generally believed that a new tomb can be found within 90 days with a thermal imager, but recently the American Geographical Association discovered an ancient Egyptian foundation 2,000 years ago with a thermal imager.
6. Discover hidden compartments
Automobile factories often use thermal imaging cameras to check whether there is any fault in the car. Police use this use of thermal imaging cameras to check vehicles for compartments. Drug dealers often place drugs in tires, fake gas tanks and return pipes, or other compartments of the vehicle, making it difficult to spot such flaws by visual inspection alone. It is much simpler to use a thermal imager. For example, a vehicle has two air return pipes and one of them is fake. Observing through a thermal imager, it will be found that the return air pipe in use appears white and hot, while the other one does not. It is reported that the joint federal inspection team on the U.S.-Mexico border has used this method and has discovered thousands of smuggled items of drugs and illegal aliens trying to cross the border.
7. Perimeter monitoring
When searching for suspects or dealing with emergencies, the first action taken by the police is to block the accident site and send alerts around to prevent suspects from escaping or someone entering the alert area to interfere with the case. Thermal imaging cameras can make perimeter control more effective. Today, many countries have begun to use night vision technology to monitor the surrounding areas of criminal correctional institutions, factories and airports day and night to prevent accidents. Thermal imaging cameras can also help police check security in commercial areas. Because thermal cameras can't use glass, often the windows appear to be integral to the wall, and if you see something inside the house with a thermal camera, it means the windows are open or broken, and the house has been or is being burglarized. Utilizing this method is efficient and time-saving.
8. Environmental protection
Contaminants such as oils and chemicals emit different heat radiation than their surrounding soil or water. Thermal imaging cameras can track these pollutants and find their source. The use was discovered while the US Drug Enforcement Administration was tracking a ship from South America. As the ship sailed into New York Harbor, it was observed by thermal cameras as it opened the sewage system and poured sewage into the harbor. After this incident, the U.S. Drug Enforcement Administration, the Federal Bureau of Investigation and other agencies began to use their own advantages to consciously participate in environmental protection. Today, thermal imaging cameras have been widely used by environmental organizations to find factories that cause pollution, oil slicks on water, etc.
