Traditional Culture Encyclopedia - Hotel accommodation - Chengyang Happy Hotel
Chengyang Happy Hotel
A fun hotel opened in a large and prosperous area will not have a camera. There are many rooms in regular hotels or guesthouses, as well as restaurants and baths, no problem.
If it is discovered by customers, it will be a great blow to the reputation of the business, and the business is also to catch income, not to steal personal privacy. Generally speaking, the prices of sex hotels are higher than those of ordinary hotels or guesthouses. What the hotel service industry fears most is a bad reputation, so interest hotels will not make money by that little privacy. Therefore, regular sex hotels will not have cameras.
Extended data:
How to check whether the hotel has a camera;
1. Turn on the camera function of the mobile phone, turn off the lights in the room and close the curtains. Leave the room in a dark state without any light. The darker the room, the better the inspection status! Then turn on the camera function of the mobile phone and walk around the room to see the dead angle and ceiling of the room. Television, air conditioning and other places where pinhole cameras may be installed.
2. Any camera needs to collect visible light for imaging, so you can find the camera according to the reflected light of the lens, aim the flashlight at every pinhole that looks like a hidden camera, and then observe the reflected light.
The best way is to shine a flashlight on the front camera of a laptop or mobile phone and shake it back and forth. If you see this little color reflection, shake the flashlight and you will start. This is usually the lens reflection of the camera.
3. All cameras have an image sensor (CCD/CMOS). Generally, the sensor needs a crystal oscillator to generate a clock, which scans and images pixel by pixel (field clock) and line by line (line clock). The generators of these clocks will leak electromagnetic waves with a relatively fixed frequency.
Generally, the line clock is 12MHz to 30MHz, and the field clock is 15.625kHz(PAL) and 15.750kHz(NTSC). The former can be detected by multi-band radio in short wave band. If there is generally no camera with electromagnetic shielding, you can hear the clock signal about half a meter.
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