."?!——" Everyone was stunned after hearing this.

Install surveillance equipment in the long room? The people in the hotel are crazy. Or are the people in Lingxi Province crazy? Even if you are very happy about the arrival of the eldest son, you want to record the words and deeds of the long son for later visits, you should not install surveillance equipment in the room?

Could it be that your company commander wants to know a little about taking a shower, changing clothes and going to the toilet?!

This is obviously ulterior motives. Not only did the main leaders of Lingxi Province change their faces, Fan Heng's expression was also very bad. As for the person in charge of the hotel, he was already scared to death. He could no longer tell how he should be determined. Should he be classified as an intention to steal state secrets or conspiracy to endanger the safety of the national leaders?

Anyway, no matter which one it is, you can't afford to take advantage of it, which is certain. The question is, how can you install surveillance equipment in a five-star hotel?

"Let me take a look--" Fan Wubing lets his father Fan Heng stay outside, and then he followed the guards into the room.

Fan Wubing was also very curious about the fact that surveillance equipment was installed in the hotel room. He thought that people in Lingxi Province would not be so stupid, right? What are the benefits of doing this? Is it really impossible for someone to spy on the leader's personal **? The risk of doing this is too great.

The floor height of Yuhe Hotel is 21st floor, which can be regarded as the number one luxury hotel in Lingxi Province. However, because the provincial capital of Lingxi Province lacks similar reception places for civil servants, the frequency of use here is very high, which leads to cadres below the deputy division level and below are not qualified to move in at all.

Even if you move in, you have to be divided into different levels according to the administrative level.

Generally speaking, the third floor below is a modified venue, a restaurant and event hall, and a parking lot are on the two underground floors. The fourth to the twelfth floors are all prepared for cadres at the deputy department level and above. The thirteenth to sixteenth floors are prepared for cadres at the deputy department level and above. As for the 17th to 18th floors, this is dedicated to provincial deputy provincial cadres, the 19th and 20th floors are dedicated to receiving central officials, and the 21st floors are dedicated to meetings for leading cadres at the deputy department level and above. Sometimes, what speeches come from the central government are also held on the 21st floor.

This is why Ye Nan jumped out of the window on the twelfth floor when he jumped. This is because his husband Wu Shengyong is Pang Mingyu's secretary, and his level is at the deputy division level. However, he has the advantage of being around the leader, so he can choose the best floor. The room he booked is naturally impossible in the name of Pang Mingyu, so the highest point is on the twelfth floor.

Fan Heng's room is on the 19th floor. Although the 20th floor is also used to entertain the central leaders, generally when the central chief moves in, there is no one here, mainly to ensure that there is no one walking on the heads of the president and will not affect their rest. Otherwise, as soon as the Chang went to bed, the sound of high heels came from the top of his head. Isn't that ruining people?

Fan Heng's guards are all expert bodyguards at the central level. Not only are they good at fist and foot skills, but they are also proficient in various methods of investigating and counter-investigation. They always have to receive regular latest technical training and exercises. Therefore, as soon as they entered the house, they used their carry-on electronic equipment and immediately found a problem inside. After surveying the signal source, the problem immediately appeared. It turned out that there were seven micro camera probes installed in the bedroom, living room and bathroom, and a wireless signal transmitter installed behind the TV borrowed the hotel power supply.

"Mr. Fan, look, it's just this kind of thing-" Fan Heng's guards are still accustomed to calling Fan Wubing as President Fan. If you call him Fan's consultant, you are really a little uncomfortable.

"American's product--" Fan Wubing looked through the ** that was raised and immediately found the logo on it.

The principles of various pinhole cameras are similar. They cast 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, thereby displaying or recording it into a visible image.

Due to volume limitations, this type of camera generally does not have too complex functions, cannot adjust the focal length, nor can it adjust the aperture size. They are generally composed of multiple parts such as lenses, image sensors, analog-to-digital converters, image controllers, etc. If the audio function is provided, sound collection, processing and transmission components must be added.

The pinhole camera that Fan Wubing saw used was similar in size to the lens used on the phone later, and it used a fish-eye lens.

The so-called fisheye lens is a short focal length wide-angle lens. Its lens has a very large curve that is close to the spherical surface, and its viewing angle can be close to or even reach 180 degrees. The shooting range is much larger than other lenses and can cover more scenes.

However, the expansion of the shooting range comes at the cost of distortion of the subject. The objects captured with fisheye lenses are very deformed, which can only ensure that the scenery in the center of the picture remains unchanged, and other horizontal or vertical scenes will be distorted and look very unreal.

In addition to fisheye lenses, there are also flat lenses and conical lenses. Conical lenses can restore images better, but the cost is much higher than spherical lenses. Conical lenses are only used when there are relatively high requirements for image quality.

Generally speaking, when shooting scenes with a larger range, fish-eye lenses are generally used. If you look at it from the perspective of cost saving, then use flat lenses to achieve better shooting effects. There are many cases when using conical lenses.

The wireless camera can exit data, and the shooting range can reach tens of meters or even hundreds of meters. As long as the receiver is installed within 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 power. It detects whether there are small reflective lenses on the walls, ceilings, chandeliers, furniture, and even tissue boxes and vases. Dimming the light can prevent the pinhole camera from obtaining clear images. Turning off the power supply in the room can also prevent the pinhole camera from working. Generally, security personnel will use special detection tools to scan the signals emitted and accurately locate them.

Fan Heng’s guards use a special detection device, which can emit infrared visible light to the surface of the object you want to detect. If there are spherical lenses similar to those on the surface of the object, you can clearly see the position of the pinhole from the professional eyepiece position on the equipment, achieving the purpose of realization.

It is precisely because of this that they were able to find seven cameras from the hotel room in such a short time.

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

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

Fan Wubing nodded and said, "Since it's wireless, there will definitely be a receiver nearby. Try to search for it and see what's going on."

Generally speaking, the location of the receiver is definitely not too far away. People in the hotel will give them the courage to do such a ruthless thing. Since the guards say it doesn't seem to be done by professionals, it is very likely that it was done by some people who can get in touch with these rooms.

Fan Wubing directly thought of some possibilities, such as people who can enter the hotel room to clean it. But this is not very likely, because all the work in the hotel is done by internal personnel, so there are only some other people left, such as plumbers and electricians, but they don’t look like it from the line. So he called a hotel executive and asked, “Have this floor been under maintenance recently?”

"Inspection?" The hotel people were scared now and thought for a while before saying, "By the way, the carpet was replaced last month because it took a long time to change it, and it seemed that it was gone before that."

Fan Wubing looked at the guard and immediately thought that there must be something wrong with it, because judging from the installation of the camera, it was only a month later. So he asked again, "Can the person who changed the carpet still get in touch with this?"

"Yes, our staff usually clean it up, but they come to clean it thoroughly once a month." The hotel person replied.

Fan Wubing discussed with the guards, and then said to the officials of Lingxi Province who followed nervously, "Well, it's better to let the technical experts from the Provincial Public Security Department come over, extract fingerprints or something, and then immediately control all the people who changed the carpet to see if it was their hands and feet."

At this time, the officials in Lingxi Province were most concerned about whether they could clear away this injustice. At this time, listening to Fan Wubing’s arrangement of work here, someone immediately called and notified the technical experts of the Provincial Police Department to come over. While he said to Fan Heng a little nervously that this incident was really unexpected and was definitely not done by Lingxi Province.

Fan Heng has not made any statement yet. In fact, he is also very disgusted with this matter. He originally came to Lingxi this time and had many tasks to correct them. Unexpectedly, he could install cameras in his room. This is really infuriating. It is because he is well-educated that he did not do it on the spot. He had a face without expression, which made several leaders of Lingxi Province feel uneasy.
Chapter completed!