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Security Trends Energy-saving and energy-saving have become a global consensus, and security and energy conservation are the responsibility of the government. What is certain is that in the future, energy conservation will become a new standard for measuring the technical content of security products. The facts prove that this market trend is very obvious.
Some experts predict that in the near future, energy-saving performance requirements of products will appear in specific security product standards, and the future product market will, to a large extent, be an energy-saving market. Experts pointed out that, first of all, as the cost of system materials is reduced, the cost of the new power supply method will be greatly reduced; second, the problem of stability will be solved continuously through technical improvement, and different product design schemes will be formulated according to different specific environments to ensure the The stability of the system; Third, people's ideas have changed. Under the promotion of the national energy conservation policy, the government attaches great importance to energy conservation and environmental protection work, and brings bright prospects for the promotion of energy conservation and environmental protection products and technologies in the security field.
Security energy-saving access control application access control system, also known as access control system (ACCESSCONTROLSYSTEM), is an intelligent management system for management personnel to enter and exit, general is: management of what people can enter and exit those doors, and provide after-sales query statements and so on.
Common access control systems include: password access control systems, contact card access control systems, non-contact card access control systems, biometrics (fingerprint iris hand type) access control systems, etc. Nowadays, there are mainly two types of access control identification systems: contact cards and contactless card access systems. The contact card requires the card holder to contact the access card with the identifier to read the card information; the non-contact card access control card can recognize and record the information within a short distance from the access identifier. . These two mainstream access control identification systems can be said to have a high degree of recognition, a high accuracy, and a small size of the access control card, which is convenient to carry.
Bank cards and public transportation cards are extension applications for access control identification cards. The scope of application has penetrated into all aspects of life. After random interviews, the author found that two-thirds of the citizens have at least two access control cards, bank cards and public transport card cards. Many citizens hold more than three cards. From the perspective of energy conservation and environmental protection, China has a population of over 100 million. The amount of access card holdings is considerable, and the circulation of various types of access cards is also incalculable. Therefore, the author considers that if it is to promote the multi-card-one card, it can not only be convenient to carry and use, but also can greatly reduce the number of other cards issued. This is to some extent ease the waste of card resources, but also in line with the concept of energy conservation and environmental protection.
With the continuous development of biometrics technology in recent years, the access control system has also made new progress. After the biometric technology has entered the mature stage, there will be more and more biometric access control systems, including fingerprint access control systems, iris access control systems, and facial recognition access control systems. They not only have their own strengths in terms of safety, convenience, manageability, etc. The most important thing is that they are more in line with the general trend of energy conservation and environmental protection. Biometrics eliminate the need for people to hold several access control cards. They only need to contact the face, eye iris, or fingerprint reader or scan at close range to identify the success. This can greatly reduce the production of access control cards. However, biometrics technology is perfect? It is understood that biometrics have a higher requirement for the environment and users. Such as fingerprints can not be scratched, the eyes can not be swollen and bleeding, the face can not be injured and so on, and even the number of beard will affect the accuracy and sensitivity of the recognizer. At the same time, the installation height and user height are not well adjusted.
It can be said that if biometrics becomes the mainstream access control identification system, the energy saving and environmental protection significance it generates will be much greater than the value brought by the technology itself. Therefore, the popularity of biometric access control systems is of great significance for the energy saving and environmental protection of the security industry. However, how to combine the advantages of energy conservation in biometric identification with the advantages of traditional access control cards is the question that security guards need to ponder over. In my opinion, the popularity of biometric access control systems lacks technological advancement and national support. Through the support of state support funds, we will reduce technological costs and vigorously promote technology integration and product promotion.
Security energy-saving scenery application The highway light system that is now under construction has fully utilized green clean energy and is powered by wind-solar hybrid systems, achieving zero power consumption, zero emission and zero pollution. Complementary wind and solar power refers to the complementary generation of wind energy and solar energy. This system uses solar cell arrays and wind turbines (converts alternating current into direct current) to store the electric energy generated by wind and solar power generation into the battery pack. When the user needs electricity, the inverter The device converts the stored DC power in the battery pack to AC power, which is sent to the user's load via the transmission line.
Wind-solar hybrid power generation system has the characteristics of no need to lay long-distance transmission lines, no need to excavate the road buried pipe, no power transmission, etc. Its unique advantages are prominent in the lighting areas such as urban roads and highways. The weather is bright in sunny days and windy in rainy days. In the summer, the sun is strong and the winds are strong in winter. It uses the complementarity of solar energy and wind energy to generate electricity through solar energy and wind energy integrated systems, stores electricity during the day, and provides street lighting through intelligent control systems at night. powered by. The wind-solar hybrid road lighting system embodies the concept of environmental protection and energy saving. The one-time investment is roughly the same as that of the conventional power transmission line-type circuit lighting system, but the funds invested by the wind-solar hybrid system can utilize the inexhaustible wind energy and solar energy to provide stability. Reliable electric energy has both obvious economic benefits and energy saving and environmental protection effects.
Considering energy conservation and environmental protection, DC12V or DC24V power supply equipment may be considered for the expressway monitoring equipment, so that the DC power of the wind power generation system can be directly used. For highway monitoring needs, security companies have launched energy-saving integrated high-speed PTZ cameras, which support DC24V power supply, the average daily power consumption of about 1000W (including cameras, lenses, PTZ, wipers, optical transceivers, heaters and fans, etc.) . Considering the power consumption of the integrated PTZ camera, the scenery conditions of the installation site, the average value of the annual sunshine, the average value of the wind, and related experience, the appropriate wind power generation system can be selected. For example, for the above-mentioned integrated PTZ camera, a wind turbine with a rated power of 500 W may be selected. The generator has a wind wheel diameter of 1.4 m, 5 blades, a starting wind speed of 2.4 m/s, a cut-in wind speed of 3 m/s, and a rating. Wind speed 12.5m/s; It can use solar panel monocrystalline silicon material, conversion efficiency ≥ 15%, open circuit voltage = 21.6V, optimal operating voltage = 18V, short circuit current L = 6.6A, optimal operating current = 5.56A , Peak wattage = 100W, annual solar radiation is 112.0 kcal/cm. According to the conversion, the average daily peak sunshine number is 4 hours, and the average daily power generation of a single solar panel is about 240W. h, according to the fan's monthly power generation, under the premise of ensuring the quality of power supply, calculate the optimal peak value of the solar panel wattage, use five 100W solar panels to form a matrix. Sealed lead-acid battery 12V/200Ah total 5 groups. The above design can guarantee the power consumption needed for a windless and dull 7-day integrated PTZ camera.
With the severe global warming situation, energy conservation and environmental protection have once again become a global concern. It is no longer a difficult problem that a person or a country is faced with. It is about the survival and development of the entire human race. The economic development has not only brought about the prosperity of the country but also triggered a series of environmental problems. The rapid development of the security industry is no exception.