The surveillance camera is known to be an ordinary camera, while the smart analysis system is installed by the central college and the data analysis is done by the central college. "we're on this side, too, as a pilot, and if we find any shortcomings, we'll give them feedback, and we'll deal with them backstage." liu wen jia。
Standards: building industry consensus
In july of last year, the shenzhen city security industry association joined up with more than 20 security firms to develop technical guidelines for high-altitude parabolic surveillance (alarming) system engineering (hereinafter referred to as the code). Wang da, vice-president of the safe trade association of shenzhen city, was the main drafter of the code, which was implemented on 31 december last year。
“there were several cases of high-altitude parabolic deaths in shenzhen at the time, and the legislative level was moving forward, but it would be unfair to involve the entire building if the perpetrators were not found.” in this context, wang da has described their desire to resolve the issue of physical evidence in high-altitude cases through technical means。
According to wang da, prior to the adoption of the code, a number of shenzhen enterprises had begun to apply high-altitude parabolic monitoring, but there was no uniform standard and no complete system. “in the past, cameras were also used as high-altitude viewers. However, early video technology was simply recording images, which were too vague to be used as court evidence. When artificial intelligence technology is integrated, high-altitude parabolic monitoring moves further.”
According to wang da, there are currently three technical routes for the high-altitude parabolic intelligence monitoring system:
The first is to transmit high-altitude parabolic images taken from a regular camera to the backstage, to process video images through the system, and eventually to trace them from a trajectory analysis to which household the parabolic behaviour was performed. When there are 20 or 30 buildings in a small area with hundreds of cameras installed, the data transmission pressure will be high and less time-sensitive。
The second is to embed ai video analysis algorithms into front-end cameras, which, when they capture high-altitude parabolic incidents, can immediately conduct research and computation, quickly and accurately locate the origin of the parabolics and record their path, while at the same time sending alarm messages at the surveillance centre in a very short time. Much of this front-end processing technology is currently used。
The third is to transfer all surveillance videos to the cloud, which can be used for data analysis and computation at a faster rate, but the volume and costs of data transmission can also be greater。
High altitude parabolic trajectory analysis
“all those who live at the top of the district wish to be excused from liability in the event of a high-altitude throwing incident, since he is not the subject and does not want to be implicated. So far the pilot has worked very well, and the monitoring system can serve as a warning。
Disputes: the boundaries of privacy
On 1 march this year, the criminal law of the people's republic of china was amended by the entry into force of the amendment (xi) to the criminal law of the people's republic of china, which introduced the crime of throwing objects at high altitude from buildings or other high altitude. In serious cases, the penalty shall be imprisonment, detention or control for a term not exceeding one year and a fine or a single fine. On the same day, the people's court of zhongyang city, jiangsu changzhou, heard a case of high-altitude throwing, in which the accused was sentenced to six months ' imprisonment for high-altitude throwing, making it the first case in the country。
“in past judicial practice, high-altitude throwing requires certain consequences in order to constitute a dangerous offence against public safety, an intentional offence of injury or an intentional murder, leading to a higher threshold for high-altitude throwing.” according to the law firm yinglong of guangdong, before the crime of high-altitude throwing, high-altitude throwing-related cases were mainly civilized and preferred civil compensation。
“in judicial practice, cases involving high-altitude parabolics often fail to identify direct perpetrators, and it is unfair for the plaintiffs sometimes to sue directly all the residents of a building other than the first floor and, ultimately, all the households jointly for damages.”
With regard to the images taken by the high-altitude parabolic smart monitoring system, the royal school of science indicated that they could be used directly as evidence in court, but it also expressed concern about violations of citizens ' privacy. “the problem cannot be solved by cameras alone, and the eradication of high-altitude throwing ultimately depends on individual self-awareness, social oversight and legal sanctions.” the queen's school。
According to wang dae, there is no fear of personal disclosure, which he analyses: “technically, choosing the right location to install the camera would minimize the risk of personal disclosure. Second, the entire system is closed and it is not possible for outsiders to get this image through a system connection. Finally, in the management log of the system, who has ever seen the surveillance video is recorded.”
Liu wenga also stated that the district had taken into account the privacy of the household when setting up the surveillance system, “it has been reflected by the household, which i said would not film the situation in your room, and we only target the balcony”. In the small control room, journalists see cameras that clearly capture the balcony, while inside the room it is difficult to see。
Staff at a security enterprise in shenzhen told journalists that, at the time of installation of the commissioning, the camera could not capture the household's home and could be used in algorithms only for high-altitude throwing and not for face recognition。
Universal access: funding needs to be addressed
According to the supreme people's court, in the three years from 2016 to 2018, over 1,200 civil cases of high-altitude throwing crashes were resolved by the national courts, and nearly 30 per cent of the more than 1,200 cases resulted in physical damage as a result of high-altitude throwing crashes; 31 criminal cases were heard and more than half of the 31 cases resulted in the death of the victims。
So, is the high-altitude parabolic intelligence surveillance system widely available? According to wang da, such a system had entered the small areas on a large scale since last year, and by may 16 cities and more than 300 districts in the country had installed high-altitude parabolic intelligence monitoring systems。
According to wang da, the main problem with the current universal access system is the problem of funding. “a building of 25 to 30 floors will normally require three cameras to monitor each building, allocating back-office analysis systems and software-related costs to each camera at around $8,000. Wen jia liu, for his part, revealed that the installation of a high-altitude parabolic intelligence monitoring system in the yagum district cost hundreds of thousands of dollars。
Wanda further analysed that if it was a new neighbourhood, then it would be sufficient to include the funds for the installation of the system in the original capital project; if it was a retrofit in the old neighborhood, it would be a question of who would pay for it, and if the government could solve a part of the property management, a part of the home maintenance fund in the district and a part of the home maintenance fund in the district, it would be acceptable for the families to raise a little more。
According to the above-mentioned shenzhen security company staff: “many of the newly built districts in shenzhen are now equipped with high-altitude parabolic intelligence systems, and the old subdivisions need to be upgraded with a physical maintenance fund
It is understood that, in the industry, companies such as china, hecomvish (002415, sz) and daehua shares (002236, sz) currently provide mainly such products as smart cameras, while other small and medium-sized enterprises (smes) provide construction programmes and implement installation as engineers and integrated traders。
“this market space is still quite large in the future, after all, the urban population is growing dramatically, as is the number of high-rise buildings.” according to wang da analysis。
