Nowadays, cameras have become ubiquitous in life. There seems to be an eye around you all the time. Every now and then we see a star who has been photographed, and who has become popular on the Internet because of an incident. The reason was that only the "video" of that event was being circulated. After we had lunch, we watched these trivia matters that had nothing to do with us, and we felt the pervasiveness of the camera.
However, the camera seems to be interested in facing us. For example, a theft occurred at the entrance of the house. The property of the community told the victims that “no surveillance video†was displayed. The camera that was hung high in front of the house was actually a decoration; for example, it was next to a bank ATM machine. The probe cannot withstand the illumination of the flashlight. If the flashlight is used to illuminate the probe, it will cause the video monitoring “shockâ€; for example, the camera used for road monitoring can’t even see the license plate of the vehicle, and the effect is not as good as the company’s door installation. The camera...
Digging into all these anecdotes, I'm afraid that if we live under the "eyes," we can't tell which eye is normal, which "eye" has become blindfolded, or in which case Next, the camera will have an intermittent shock? With such embarrassment and doubts, we first give a few real cases and do not ask for saliva, but look inside and use their eyes to light up the "eyes" of life.
Case I: LED flashing million monitoring ATM monitoring was molested
“Strangely, the intelligent video surveillance that was purchased at a high price actually shined under the flashlight of the criminals. The monitor was blurry. The criminals installed the pirates calmly, stole 12 depositor card numbers and passwords, and stole them. A huge sum of 200,000 yuan."
Recently, a group of lawless elements used flashlights to illuminate the probes to allow video surveillance to “shockâ€, commit crimes frequently, and steal depositors’ deposits. According to the police, only two people in this group of criminals have a clear division of labor and cooperate with each other to cover up crimes. They successively committed criminal acts on ATMs in several cities in southern Jiangsu and northern Jiangsu. Before each crime was committed, one person used a flashlight purchased at a street stall to constantly illuminate the monitoring probe, and the other person installed the card reader and camera “quietly and casuallyâ€. The whole process is only about 2 minutes.
Why use a flashlight to aim the monitor probe? The criminals said in the police’s confession: “In order not to leave any clues to the police, because the lights of the flashlights just aim at the camera, the video screen will become blurred, and even the human facial features will not be clear. This is a real peace of mind without leaving a handle."
Editor's comment: The use of strong light suppression camera can avoid blinding flashlight
Generally speaking, the camera at the front end of the video surveillance has relatively high requirements for the use environment. It must have sufficient illumination, no environmental or human interference, and no color disguise. If the light is too strong or the light is insufficient, the monitor picture may be blurred.
In this case, the criminals used light interference from the flashlight, which caused the surveillance video to be blurred. So, how can ATM monitoring ensure normal operation? We can use a camera with a strong light suppression function, this camera can be in the image of the strong light part of the video information through the DSP processing, the video signal brightness adjustment to the normal range, while the dark part of the lighting, to achieve light Balance, in this regard, the criminals re-use flashlight, video surveillance will not "hit."
Case Two: Electronic Eye Becomes a "Group of Eyes" Surveillance Video Group Strike
According to Anhui Business Daily, on December 8, 2009, Zhao Qian, an inhabitant of buried hill in Anhui, rode his bicycle home in the afternoon and was hit by a small truck. The vehicle quickly fled to the county. The police checked the surveillance video of the county but could not find any clues. The county’s 110 command center’s more than 10 security surveillance videos were all unclear, and they could not even see the number plates of the vehicles during the day.
It is understood that Qianshan County is the demonstration and construction point for security "3111" project selected by the Ministry of Public Security, and has already built a city alarm and monitoring system. However, according to informed sources, under the constraints of economic conditions, Qianshan County has already established a video surveillance system for public security, in addition to the two cameras used to check the speed of the camera screen is clear, the video surveillance results of other security surveillance video are relatively poor.
Edit Comment: Security is not the face of the project is the only way to act
In most people's memory, Qianshan County is a security demonstration city. However, such an embarrassing situation has occurred. Do you not know whether the “demonstration†is a positive case or a negative one?
When it comes to the electronic eye becoming a "winkhole", the buried hill is not an "example" before, and there is no "come out": Yulong New Village, Qingshuihe Street, Luohu District, Shenzhen, a community of more than 20,000 people. "The entire Yulong New Village The roadway cameras have been 'squeaked', and the wholesale market in Nanchang has been stolen. “The supervisors spent a large sum of money to install monitoring probes to protect the safety of the market operators. However, they have never been seen in the past two years. After several successive thefts, we all hoped to use the surveillance probe's Sanwei to solve the case and the result was never expected."...
It should be said that the construction of a safe city should not become a “political performance project†for some local governments. The cost of building a security system is already large. If it is abandoned or not achieved after installation, it is installed and not installed. What is the difference?
Case 3: The airport bus becomes a camera for the “stolen paradiseâ€
The airport bus, this means of transportation is nothing more than the airport is far from the urban areas and derived from the convenience of passengers travel, but sometimes, taking the airport bus will become a troublesome thing. Why? Because baggage may sometimes go missing. Do not believe, we come to see the personal encounter of a netizen:
In February 2009, Mr. Xu arrived in Beijing on a flight from Nanchang and took the airport bus numbered 159 at 11:00 to get off at Zizhuyuan. When you get off, leave the computer bag in the car. "After getting off the train, I found the computer bag was forgotten." Mr. Xu said that he chased the car. About 4 minutes later, the bus was chased, but there were only two passengers left in the car. The computer bag is no longer in the car. "The computer has stored information that is ready for publication," said Xu.
After the incident, Mr. Xu alerted the police and assisted the civilian police station in Terminal 2 to make a record. Mr. Xu communicated with the airport bus operating department several times and hoped to obtain video surveillance in the car. “They first said that there was a video to watch; they said that they needed to be called out by the engineer to see the video; after that, there was no video and there was no obligation for me to see it.†The final reply that Mr. Xu obtained was: The vehicle monitoring system was damaged and it was impossible to retrieve the surveillance video.
Edit Comment: "Original camera is a troublesome thing"
Fortunately, I have carefully investigated the above cases. Is the camera of the Beijing Airport Bus really useful? According to reports from Beijing TV station, there will be a case of theft every two days on the Capital Airport bus. I think that my answer is no longer important.
What caused the frequent occurrence of such cases? Let’s take a look at the reflection of parties involved in the incident:
Airport Bus Operations Department: The bus is operated by Beijing Civil Aviation and Airline Services Co., Ltd. and Beijing Civil Aviation Andal Taxi Co., Ltd. The on-board equipment is also maintained by the two companies. (I mean: We don't care about the monitoring equipment in the car?)
Anle company: This matter is the responsibility of the technical department, and has nothing to do with the (our) business department; the technical department contact method? we do not know. (It seems that it can be divided into two companies operating)
KONE: I'm only responsible for answering the phone. I don't know anything else. Our manager is not. (Why don't you buy an automatic answering machine? Wasted manpower.)
Bus companies: Our buses are equipped with on-board monitoring equipment at the time of purchase, as well as after-sales maintenance of on-board monitoring equipment. (It seems that the bus at the Capital Airport is quite for their sake and saves them a lot...)
Airport bus dispatching room: The surveillance video on the bus needs to be issued by the police station before it can be retrieved. Is the monitoring equipment on the airport bus operating normally? "It should be used." (Actually, passengers think so too)
To say so much, in the final analysis, we must blame why there is such a monitoring device on the bus? If not, wouldn't passengers miss their luggage and wouldn't think about watching video surveillance? It seems that we must blame the camera for the incident.
Case No. 4: The burglar-infected cell monitoring probe has been closed for a long vacation.
The construction of the community now looks more and more complete. The cameras, intercom doors and security doors are not bad. Even these security systems have become one of the capitals for soliciting households. However, shortly afterwards, tenants began to feel the headaches of these security systems. “The camera is also white, it is safe to steal, and it also steals a standard.†Such complaints are not uncommon in our lives.
To take a look at this example, five motorcycles parked in a dormitory area of ​​Wujing Road, Kunming City, were stolen overnight, and the blue-marked sign was clearly displayed at the prominent position of the gate. It reads: "Electronic monitoring area." A spherical monitoring probe is very powerful, and I think we should be able to find some clues. After the alarm, the owners could not accept that they were told that the public security monitoring probe at the gate had been broken for a long time and had not been repaired.
There are numerous examples of community monitoring facilities, which have been reported by the media several times. Many of them were residents who had been stolen or subjected to personal infringements and had asked to view the surveillance video before they knew that the patron saint who thought that he had a sense of security was “a blind eyeâ€.
Edit Comment: Community self-built monitoring system rights and responsibilities unknown
In general, the warranty period for surveillance equipment is only one year. If the quality is poor, problems will continue to occur after one year, and it may happen after two years. Even a good quality brand can only be used stably for about 5 years.
In addition, the daily maintenance cost of the monitoring system is also quite a lot. The market price of an ordinary ball machine is about 3,000 yuan, and the installation fee is about 200 yuan each. The monitoring facilities work endlessly throughout the year with limited service life. If you do not pay attention to maintenance on weekdays, there will be continuous failures, and maintenance costs will naturally be high. The probe's quality, shooting angle, etc. also affect its role.
At present, community monitoring has become a decoration, often due to multiple reasons, a residential property has revealed that the district monitoring system is rarely opened. At present, the collection rate of community property fees is generally low, and the property does not have extra money to maintain the community monitoring system. Even if it is a community that turns on the surveillance system throughout the day, it cannot guarantee that its equipment is in a normal state of operation. The use of a 78% camera is very good. If the monitoring system lacks maintenance, it can easily be broken. In general, the absence of special supervision by the industry committee, the maintenance of the property without funds, and the protection of the owner’s ignorance are the reasons for the “failure†of the community monitoring system.