"?!" Everyone was dumbfounded after listening.

Install surveillance equipment in a long room? The people in the hotel are crazy. Or are the people in Lingxi Province crazy? Even if you are very happy about Chang's arrival and want to keep a record of Chang's words and deeds for later admiration, you won't have to install monitoring equipment in the room, right?

Could it be that you want to know something about the habit of bathing, changing clothes and going to the toilet? !

This is obviously unpredictable. Not only the expressions of the main leaders of Lingxi Province have changed drastically, but Fan Heng's expression is also very bad. As for the person in charge of the hotel, he has been scared and stupid at all. He has no idea. How should I be convicted of this crime? Should it be attributed to the intention to steal state secrets, or conspiracy to endanger the safety of national leaders?

Anyway, no matter which one it is, you can't eat it, and that's for sure. The question is, how can monitoring equipment be installed in a five-star hotel?

"I'll take a look—" Fan Wuyao let his father Fan Heng stay outside, and then followed the guard into the room.

Fan Wubing was also very curious about the monitoring equipment installed in the hotel room. When he wanted to come, people in Lingxi Province wouldn't be so silly, right? What are the benefits of doing this? Could it be said that someone really wants to spy on the leader's personal affairs? The risk of doing so is really too great.

The floor height of Yuhe Hotel is 21 floors, which can be regarded as the first luxury hotel in Lingxi Province. It's just that because Ning City, the provincial capital of Lingxi Province, lacks similar reception places for public officials, the frequency of use here is very high, which results in cadres below the deputy director level not eligible to live in.

Even if they live in, they must be divided into different levels according to administrative levels.

Generally speaking, the bottom three floors are the modified conference hall, restaurant and event hall. The parking lot is on the two underground floors. The sixteenth floor is for cadres above the deputy department level. As for the seventeenth to eighteenth floors, it is dedicated to provincial and vice-provincial cadres. The nineteenth and twentieth floors are dedicated to receiving central officials. The 21st floor is a special place for leaders and cadres at or above the deputy department level to hold meetings. Sometimes the speeches made by people from the central government are also held on the 21st floor.

This is why Ye Nan jumped from the window on the twelfth floor that day. This is because his husband, Wu Shengyong, is Pang Mingyu’s secretary. He is at the deputy director level, but he occupies the leadership side. It's good, so I can choose the floor with the best location. It is naturally impossible for him to book the room in the name of Pang Mingyu, so the highest is on the twelfth floor.

Fan Heng’s room is on the nineteenth floor. Although the twentieth floor is also used to entertain the leaders of the central government, under normal circumstances, when the chief of the central government is staying in, there are no people here, mainly to ensure the long stay. No one is walking on top of their heads, which will not affect their rest. Otherwise, as soon as I fell asleep here, the sound of high-heeled shoes rang above my head. Isn't that ruining?

Fan Heng’s guards are all central-level master bodyguards. Not only are they proficient in various methods of investigation and counter-investigation, they are also proficient in various methods of investigation and counter-investigation. They always have to receive regular training and exercises on the latest technology. Therefore, after entering the house, I checked it with the electronic equipment I carried, and immediately found that there was a problem inside. After surveying the signal source, the problem was immediately found. It turned out to be in the bedroom, living room and bathroom. A total of seven miniature cameras were installed. Probe, and also found a wireless signal transmitter installed behind the TV that borrows the hotel’s power supply.

"You see, Mr. Fan, it's this kind of stuff—" Fan Heng's guards are still used to calling Fan Wuyin as Mr. Fan. If they call him a consultant for Fan, it is indeed a bit uncomfortable.

"A Yankee product--" Fan Wuyao glanced at the pop-up, and immediately showed the logo on it.

The principles of various pinhole cameras are similar. They project the light collected through the lens on the photosensitive element, and the photosensitive element converts the light signal into an electrical signal. The electrical signal is converted into a digital signal, and the digital signal is compressed and transmitted to a monitor or recording device to display or record it into a visible image.

Due to the limitation of volume, this kind of camera generally does not have too complicated functions, cannot adjust the focal length, and cannot adjust the aperture size. They are generally composed of multiple parts such as lens, image sensor, analog-to-digital converter, image controller, etc. For audio functions, sound collection, processing, and transmission components must be added.

The pinhole camera that Fan Wubing saw was about the same size as the lens used on a mobile phone later, and it used a fisheye lens.

The so-called fisheye lens is a short focal length wide-angle lens. Its lens arc is very close to a spherical surface, and the angle of view can be close to or even up to 180 degrees. The shooting range is much larger than other lenses and can cover more scenes.

However, the expansion of the shooting range is at the cost of the distortion of the subject. The object shot with a fisheye lens is very deformed. It can only ensure that the scene in the center of the picture remains unchanged. Other horizontal or vertical scenes will be distorted and look very distorted. Untrue.

In addition to fisheye lenses, there are flat lenses and conical lenses, and conical lenses can better restore images, but the cost is much higher than that of spherical lenses. Only when there are higher requirements for image quality, Only use a cone lens.

Generally speaking, a fisheye lens is generally used when shooting scenes with a large range. If it is from a cost-saving perspective, use a flat lens to obtain better shooting results. Conical lenses are often used.

The wireless camera will send out data, and the shooting range can reach tens of meters or even hundreds of meters. As long as the receiver is installed in this range, the video signal can be collected. The wired camera must be connected to a data cable to work, and the other end of the data cable is often connected to the recording device.

In addition, any pinhole camera needs a power source. It can detect whether there is a small reflective lens on the wall, ceiling, chandeliers, furniture, and even tissue boxes and vases. Dimming the light can make the pinhole camera. Unable to obtain a clear image, turn off the power of the room, and also make the pinhole camera inoperable. Generally, security personnel will use special detection tools to scan the transmitted signals and accurately locate them.

Van Heng’s guards use a special type of detection equipment, which can shoot infrared visible light to the surface of the object that you want to detect. If the surface of the object has a spherical lens similar to the object, use a professional eyepiece on the device. The position can clearly see the pinhole position of the **, to achieve the current purpose.

Because of this, they were able to find seven cameras from the hotel room in such a short period of time.

"Who do you think did this?" Fan Wubing asked.

"It's not like a professional job. It's rough, and the wires are crappy," the guard replied.

Fan Wubing nodded and said, "Since it is wireless, there must be a receiver nearby. Try to find it and see what's going on."

Generally speaking, the location of the receiver is certainly not too far away. People at the hotel give them the courage to do this kind of rebellious thing, since the guards say they don't seem to be done by professionals. Then it is very likely that someone who has access to these rooms did it.

Fan Wubing immediately thought of some possibilities, such as someone who can enter the hotel room to clean? But this is unlikely, because all the work in the hotel is done by internal staff, so there are some other people left, such as plumbers, but they don’t look like the lines, so he called A hotel executive asked, "has this floor been overhauled recently?"

"Overhaul?" The people in the hotel were so scared now that they thought about it for a while before saying, "By the way, last month because the carpet has been used for a long time, it was replaced once, and it seems that it was gone before then."

Fan Wubing glanced at the guards, and immediately realized that there must be a problem, because judging from the installation of the camera, it is a matter of months, so he asked again, "There are still people who replace the carpet. Is it possible to reach here?"

"Yes~lightnovelpub.net~ Usually this is cleaned by our staff, but they will come to clean up once a month." The hotel person replied.

Fan Wubing discussed with the guards, and then said to the officials of Lingxi Province, who nervously followed behind him, “Well, it’s best to ask technical experts from the Provincial Public Security Department to come over, take out fingerprints or something, and then immediately replace them. The people on the carpet all control it to see if it is their hands and feet."

At this time, the officials in Lingxi Province were most concerned about whether this unjustified injustice could be resolved. At this time, listening to Fan Wuyi arranging work here, someone immediately called and notified the technical experts of the Provincial Police Department. When he rushed over, he said to Fan Heng anxiously that this incident was really unexpected, and it was definitely not made by Lingxi Province.

Fan Heng has not yet expressed his opinion. In fact, he is also very disgusted by this incident. Originally, this time he came to Lingxi, he had a lot of work to correct them. Unexpectedly, he could install a camera in his room. This is really infuriating. That is to say, because of his good self-cultivation, he did not act on the spot, but his face was expressionless, which made the leaders of Lingxi Province feel uneasy.

Within ten minutes, the technical experts from the Provincial Police Department rushed over. Everyone was frightened by such a major incident.