With the continuous advancement of science and technology, criminals' methods of committing crimes are becoming more and more cunning. A single family anti-theft facility can no longer meet the requirements to protect people's lives and property. Against this form, the international social security industry has developed a comprehensive Intelligent networked alarm center system. This system greatly enhances the social security prevention capability, improves the strength of the security service industry and the effectiveness of public police officers in handling major thefts, treatment, fire, emergency and various emergencies. Protect the life and property of the country and the people to the greatest extent.
I. Development History of Networked Alarms
Three technology eras of networked alarms:
First generation
At that time, the Chinese could not make this system. The system imported from abroad was almost expensive. The biggest disadvantage was that only a few government departments could afford it, such as banks, railways, civil aviation, and so on. All these systems do not have video, uploading and disarming all generate call charges, and there is no inspection function. Although some users still continue to use such platforms, but due to their increasingly obvious defects, the price is high and the operating costs are very high. High, especially not suitable for large-scale ordinary users to promote the use, has been phased out.
Second generation
Mainly from the 90s of last century to 2007, several engineers in domestic small workshops set up a software developed by a computer studio and an industrial control machine, commonly known as an alarm card or industrial control type alarm center. This is actually based on import security. Networked alarm receiving center and simulated writing software. Since almost all of these softwares have the disadvantages of imitation security and receiving the police center, the following disadvantages are undoubtedly exposed: 1. There are no terminals produced by themselves, or they are connected to those foreign terminals copied by the market, which leads to two skins on the platform. The agreement is unqualified, and the maintenance and upgrade are poor after a failure. The client sub-platform cannot be opened, and the arming and disarming can not be uploaded for free. It is also impossible to inspect. What foreigners have copied nothing? The gap between foreigners is very large, leading many security companies with such a management center platform to change company A today, company B tomorrow, company C the day after tomorrow, in exchange for the same technology. Solve the problem fundamentally. The crux of the problem lies in the simulation technology adopted.
Third Generation
It is the third-generation digital technology platform that started in 2007. This is a complete revolution of the networked alarm platform. No matter it is advanced, stable, save operation cost and upgrade quickly, they all lead the traditional platform far away. At the heart of the problem is digital technology. The terminal price is less than 1/6 of foreign brands, upgrade to video and 3G, 4G communication digital technology, upgrade the video confirmation to the network alarm operation, upload and disarm for free, and upgrade the free inspection to the network alarm operation, all at once Save about 75% of operating expenses. In particular, the use of video composites in networked alarms has greatly improved the stability and security of the system. The user and the center can monitor the user's home situation in real time, at a glance. The network camera can also report to the police automatically and obtain criminal evidence of criminals as soon as possible.
Second, the network alarm function features:
(A) functional characteristics:
1. Alarm host: 8-channel, 16-channel, 32-channel alarm input; caller ID; user arming and disarming information display; special arming and disarming free upload alarm center function; unique information briefing bar, fast and intuitive display of received information;
2. Alarm receiving software: suitable for communities with less than one million households; help the wizard guide the operation throughout the process; automatically receive the user's arming / disarming and alarm information; automatic system inspection; alarm voice prompts; operator hierarchical management; cities, communities, User three-level electronic map; automatic printing of alarm records; automatic data backup;
3. Digital management: use digital signal processor to achieve high-performance signal processing algorithms, including real-time monitoring of alarm information and user information management;
4. Large capacity Each system has a capacity of one million households, which can meet the alarm handling of towns and large communities;
5.Easy installation Because it is connected by ordinary Chinese dialect network, there is no need to lay special lines, reducing construction cost;
6. Easy to use and maintain. Operators can operate with simple training without professional training. The system has high reliability and easy maintenance.
(2) Service Features:
1. No worries: cooperate with insurance companies to include e-care services for claims;
2. It is both affordable and convenient: pay service fees every year according to the different guarding subjects;
3. It is both safe and reliable: the on-site whistle alarm of the alarm equipment cooperates with the monitoring center to handle the alarm situation, and a special person rushes to the scene as soon as possible;
4, a wide range of applications: families, shops, communities, factories, schools, enterprises and institutions, etc., covering all subjects in society with the need for anti-theft.
(3) Risk protection:
With network anti-theft help customers avoid three major risks
1. Asking people to stay and watch the shop, there is a risk of guarding against theft;
2. The risk of personal injury caused by self-defense in the face of thieves;
3. After the theft, there is a risk that property damage cannot be compensated.
Fluorocrystalline mica, also known as Fluorphlogopite Mica, synthetic mica, artificial mica, synthetic mica crystal, belongs to the silicate type artificial mica crystal, is under the high temperature condition of 1500°C, through strict process conditions and material ratio, in platinum The mica crystals smelted in the yttrium have a chemical formula of KMg3(AISi3O10)F2(OH)-, and do not contain (OH)-. The (OH)-hydroxyl group is replaced by F-(fluoro), which is similar to the fluorite mica. Materials commonly used in the general industry are natural mica. Natural mica is an underground ore naturally formed and belongs to the class of silicates. Most of the industrial mica used is phlogopite (brown) and muscovite. Its ideal chemical formula is KAI2(AISi3O10)(OH)2. OH)-(Hydroxy), due to the presence of hydroxyl (water molecules), its performance in all aspects is far lower than that of fluorocrystalline mica.
The main characteristics of fluoride crystal mica:
1, high temperature: can work long-term in the 1100 °C environment.
The testing department of the Changchun Institute of Applied Chemistry, Chinese Academy of Sciences (nationally recognized testing institute) tested the thermal weight loss of 8% at 1100°C for 48 hours, and the melting and devitrification temperature was 1375°C.
2. Electrical insulation: The volume resistivity is 10 times higher than natural mica. Electrical breakdown strength is PTFE
Lean 10 times.
3, hot and cold blasting stability is very good
5 cycles of -40°C~70°C at the 5th Saibao Lab of the Ministry of Information Industry
Inspection, all qualified.
4, anti-corrosion:
Fluorophlogopite does not react with acid and alkali solutions, and does not react with water. Under the long-term (2 to 3 years) scouring of high-temperature and high-pressure water (including acid and alkali), the original clarity and transparency can still be maintained.
5, high frequency performance:
The dielectric constant of fluorite mica is 4.6 ε, and the dielectric loss is (1~4)×10 −4 tg δ, and the dielectric loss is very low. And because of the pure texture, all parameters are extremely stable.
6, optical properties
Since the fluorite mica contains less impurities, its light transmittance is compared from infrared to ultraviolet.
High, the transmittance is close to 100%.
7, Mosaic (Mosaicity):
The Mosaicite of fluorocrystalline mica is less than 0.25 degrees, which was produced in the experiment.
The neutron flame is not high enough to absorb multi-band light beams and is an ideal neutron monochromator test material.
8, vacuum deflation performance:
The evaporative volume of fluorite mica is low, and it is measured with a mass spectrometer and the trace gas released is only
O2, N2, Ar and other adsorbed gases. Since the H2O vapor is not released, this is extremely valuable for use as an electrical vacuum insulation material, which can greatly increase the service life of the vacuum device.
9, excellent physical properties:
Fluorocrystalline mica has atomicity flatness, transparency, separability and elasticity, not aging
It is not brittle and so on.
Due to the high temperature resistance, corrosion resistance, low frequency loss, and high bulk resistivity
Absorb multi-band light beam, excellent light transmittance and other advantages. Therefore it has become an ideal new material in the high-end area.
Fluorocrystalline mica Available in:
In the range of 180mm×53mm or ∮76mm, it can be processed into various shapes according to user requirements. Thickness within the range of 0.02mm~1.0mm can be allocated according to user requirements. The conventional thickness is 0.04~0.2mm.
Fluorine crystal (fluorphlogopite, artificial mica) mica film for observation window of high pressure boiler water level gauge in thermal power plant
Fluorphlogopite Mica
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Changchun City Taiyuan FluorphlogopiteCo. Ltd. , https://www.micaslice.com