With the rapid development of mobile communication technology, the traditional alarm operation service system in China has ushered in a huge challenge. The mobile alarm technology is fully affecting and rewriting the alarm operation service industry. Based on the brief description of the development status of the mobile alarm industry, this paper analyzes the impact and changes brought by mobile alarms to the industry and the future development strategies, prospects and trends of mobile alarm technologies. Impact and change brought by mobile alarms to the industry Mobile alarm is a high-quality stock in the current alarm market, which brings good opportunities to the alarm operation service enterprises. If the alarm operation service enterprise can adapt to the new technology and keep pace with the times, it will bring more business opportunities. 1. Under the high popularity of mobile Internet, alarm information can be transmitted through the network, the transmission speed is fast, the cost is low, the information can be transmitted in real time, and the operational risk of the alarm operation service is greatly reduced. 2. Under the network transmission mode, the alarm service operation enterprise system can easily realize server expansion through the network, and the alarm operation service enterprise is more likely to realize large-scale development. 3. In view of the widespread popularity of the network, the video review application in the alarm system is easier, the alarm operation service cost is lower, and the operation is safer. The enterprise can break the bottleneck of the operation service radius and can carry out cross-regional operation to provide nationwide alarm operation service implementation. It is possible. 4. Under the mobile alarm service, the alarm operation service can carry out network management and management. In the management process, many systems such as alarm, office and management can be integrated to realize information sharing, and user participation security is improved, and the user group can be performed. A better and more stable experience. In the mobile alarm, the home service market is a big cake. This service market has broadened the service field of the alarm industry and provided a good opportunity for the development of the industrialization of the alarm industry. The family alarm service will become the largest field in the alarm operation market, helping alarm service operators to break through the bottlenecks in development, create greater economic growth points, inject new vitality into the development of the alarm service market, and enable service security to complete the transformation of smart homes. Constantly expanding the market plays an important role. Difficulties in the development of mobile alarms The current mobile alarm market has made the alarm service practitioners always look at it, but it has not yet formed the power of the dragon disk. There are many difficult problems in the development of the alarm service industry. Mobile alarm security is difficult to guarantee One of the biggest problems facing the development of the mobile alarm industry is the issue of network security. The alarm signal is transmitted through the network. In the process of transmission, it will inevitably face external influences such as virus damage and hacker attacks. The data transmission security is difficult to guarantee. In the operation process of the alarm operation service enterprise, appropriate measures must be taken to ensure the data security of the public network server. Compared with the traditional alarm system, the mobile alarm system will involve mobile communication, network communication, computer and other technologies, and the structure level is more complicated. If the technical barriers cannot be solved, it will indirectly lead to the expansion of network security problems in the alarm operation, which is a primary problem in the development of the alarm service industry. The popularity of professional knowledge is not high With the continuous development of mobile alarm technology, medical services such as medical help and community services will be added in the future home alarm service. However, family user members, especially elderly users, have poor understanding of new things, and lack of understanding of security knowledge in the service system will inevitably lead to operational errors. How to popularize security knowledge among ordinary users is a major difficulty in development. Service price hinders business promotion In the development of home mobile alarm technology, there is no pricing system and access rules under the unified standard for this service system. During the operation process, each of the practitioners priced the alarm service according to their own operation mode. In addition, due to the uncertainty of the alarm maintenance time of the home users, compared with the merchant alarm service, the operating cost of the home alarm service is much higher. In the course of operation, some practitioners arbitrarily promised services, but the latter maintenance did not fulfill their responsibilities, which made the market awareness of the mobile alarm industry continue to decline. The non-standard service price system and poor market trust have greatly hindered the development of the family mobile alarm service. Mobile alarm development strategy In view of the difficulty in the development of the above mobile alarm technology, in the future, mobile alarm technology should be better developed, and the following aspects should be completed to expand the business channel: Integrated alarm service technology platform For ordinary household users, family members' health and life safety are the first concerns, followed by family property safety. Our country's law stipulates that people cannot hold controlled knives, which leads to the reliance on the police when they suffer personal injury. In this case, the family alarm system needs to be communicated to the police in the shortest time, so that the police can reach the scene at the first time, so as to ensure the personal safety and property safety of the user. When a home user faces burglary, the customer's request is only to ensure that the property does not suffer losses, and whether the thief can catch it, the customer is not concerned. Under such circumstances, the mobile alarm system needs to adopt technical means to intimidate the thief and stop the crime in time. Therefore, in the future, mobile alarm technology needs to integrate the alarm platform continuously, so that the alarm service can adapt and meet the needs of different home users. Do a good job in publicity training for mobile alarm services For customers, to let customers choose mobile alarm service, they must let them fully understand the service. Customers only have to know the demand of the alarm service before they have the desire to buy. Therefore, mobile alarm service providers must conduct security publicity training for ordinary household users in order to expand their business. At present, most household users are still in the initial cognitive stage of understanding the alarm service industry. Many people know nothing about mobile alarm networking services. Therefore, to expand the market, mobile alarm service providers must provide training for home users. Train students to understand the cognitive level of different users, let home users understand the system, and understand the operation of the service system through easy-to-understand pictures. Only the training propaganda is in place, and the mobile alarm security service is publicized to the household name. The user can fully understand the mobile alarm service function, and then it will generate acceptance and use intention. The post-security service training will be done, and the customer's home alarm service will really play its due role. Establish and improve service charges and industry access standards To expand the mobile alarm service, at least the establishment of unified industry access standards in the provincial area, the establishment and improvement of the service charging system, in order to form a unified threshold in the industry, will be rejected by those enterprises that lack long-term planning and no sense of responsibility. Outside the door, and to eliminate the illegal phenomenon of chaos and unreasonable charges in the industry. Integrate resources and continuously innovate service models With the continuous development of the Internet of Things technology, the future of home mobile alarms will be more diversified in service functions, and mobile alarm technology is bound to evolve from a single dialing alarm to multiple channels under intelligent control. Mobile alarm service providers can only meet the various needs of family alarms by integrating various resources and integrating social resources such as network, communication, 120, and 119. At the same time of integrating resources, service providers need to continuously innovate their service models, open personalized and diversified value-added services for different users, improve the level of alarm services and service quality, so that home alarm mobile technology can be further developed. space. The mobile alarm service industry belongs to a sunrise industry that has just started. Although the current development is relatively slow, the future prospects are attractive and will inevitably attract more troops to join. At present, powerful telecom operators, IT companies and other powerful groups have joined the operational field of alarm services, and more companies will follow up in the future. These new forces will not only bring a lot of money to the alarm service industry, but also bring The new technology and market bring great vitality to the service industry and promote the development of the entire mobile alarm technology. Home users are the main potential users of the mobile alarm industry. In the future, mobile alarms will surely develop rapidly, and the mobile alarm operation market will enter the peak period.
Product Features
1, built-in over-current overheating, temperature control circuit technology.
2, the module design, easy installation, online replacement.
3, low leakage current, fast response time, low residual voltage.
4, alarm indication device, green (normal) v red (fault).
Maximum Discharge
Current Imax(8/μ20μs)kA
Nominal Discharge
Current In(8/μ20μs)kA
Operating
Environment-C
Surge Protector SPD,Surge Protection Device SPD,SPD Wenzhou Korlen Electric Appliances Co., Ltd. , https://www.zjthermalrelay.com
Product Description
SPD Surge Protective Device,Lightning Surge Protector
Surge Protection Device (SPD)
It is a device used to limiting instant surge voltage and discharge surge current, it at least including a non-linear component.
Surge protective Device Model Selection
With the impact of international information flow, the rapid development of microelectronic science and technology, communication, computer and automatic control technology, make the building start to go for high quality, high functional area, formed a new building style-intelligent building. As inside the intelligent building there are lot of information system, <<Building lightning protection design norm>> GB50057-94(2002 vision)(hereafter brief as <<lightning protection norm>>) put forward the relative requirement to install the surge protective device, to ensure the information system safely and stable running.
SPD essentially is a equipotential connection material, its model selection is according to the different lightning protection area, different lightning electromagnetic pulse critical and different equipotential connection position, decide which kind of SPD used in the area, to achieve the equipotential connection with the common earth electrode. Our statement will based on SPD's maximum discharge current Imax, continuous operating voltage Uc, protection voltage Up, alarm mode etc.
As per << Lightning Protection Norm>> item 6.4.4 stipulation "SPD must can withstand the expected lightning current flow and should confirm to the additional two requirements: the maximum clamp voltage during surge across, capable to extinguish the power frequency follow-on current after lightning current across." That is the value of SPD's max. clamp voltage add its induction voltage of two ends should be same with the system's basic insulation level and the equipment allowed max. surge voltage.
SPD for Power Supply System Series Selection Guide
The installation of SPD at each lightning protection zone, according to the standard of low voltage electrical appearance, make classification of electrical equipment in accordance with the over voltage category, its insulation withstand impulse voltage level can determine the selection of SPD. According to the standard of low voltage electrical appearance, make classification of electrical equipment in accordance with the over voltage category as signal level, loading level, distribution and control level, power supply level. Its insulation withstand impulse voltage level are:1500V,2500V,4000V,6000V. As per to the protected equipment installation position different and the different lightning current of different lightning protection zone, to determine the installation position of SPD for power supply and the break-over capacity.
The installation distance between each level SPD should not more than 10m, the distance between SPD and protected equipment should as short as possible, not more than 10m. If due to limitation of installation position, can't guarantee the installation distance, then need to install decoupling component between each level SPD, make the after class SPD can be protected by the prior class SPD. In the low voltage power supply system, connecting an inductor can achieve the decoupling purpose.
SPD for power supply system specification selection principle
Max. continuous operating voltage: bigger than protected equipment, the system's max. continuous operating voltage.
TT System: Uc≥1.55Uo (Uo is low voltage system to null line voltage)
TN System: Uc≥1.15Uo
IT System: Uc≥1.15Uo(Uo is low voltage system to line voltage)
Voltage Protection Level: less than the insulation withstand impulse voltage of protected equipment
Rated discharge current: determined as per to the lightning situation of the position installed and lightning protection zone.
SP1 Series
Normal Working Conditions
-Altitude not exceed 2000m
-Ambient air temperature:
Normal range: -5ºC~+40ºC
Extend range: -40ºC~+80ºC
-Relative Humidity: 30% - 90% under indoor temperature condition
- At the place without obviously shaking and shock vibration
- Non-explosion danger medium, non-corrosion gas and dust ( including conductive dust)
Classification
-As per Nominal Discharge Current:
5,10,20,30,40,60KA(8/20µs)
- As per Maximum continuous operating voltage:
275V,320V,385V,420V,440V,460V
- As per to poles
1P,1P+N,2P,3P,3P+N,4P
- As per auxiliary functions:
a. With remote signal output ( remote alarm function)
b. Without remote signal output
Selection Principle
- The continuous applied voltage on the two terminals of SPD should not more than the maximum continuous operating voltage Uc value;
- The voltage protection level Up of SPD should less than the maximum impulse withstand voltage of the protected equipment;
- As per to the different earthing system and protection mode to select the specification accordingly;
Model/Technical Parameters
WR-B60
WR-B80
WR-B100
WR-B120
WR-B150
Rated Operating Voltage Un (V ~)
220V 380V
220V 380V
220V 380V
220V 380V
220V 380V
Maximum Continuous Operating Voltage Uc (V ~) kV
385V 420V
385V 420V
385V 420V
385V 420V
385V 420V
Voltage Protection Level Up (V ~) kV
≤1.8≤2.2
≤2.4≤2.5
≤2.5≤3.2
≤3.4≤3.7
≤4.0≤4.5
60
80
100
120
150
30
40
60
80
100
Response Time
<25
<100
L/N(mm²)The Cross Section Of L/N Line
16,25
16,25
16,25
16,25
25,35
PE (mm²)The Cross Section Of PE Line
16,25
25,35
25,35
25,35
35
Fuse or Switch (A)
63A
63A
63A,100A
63A,100A
63A,125A
The Line Section of Communication and Alarm (mm²)
≥ 1.5
(-40ºC~-+85ºC)
Relative humidity 25 ºC
≤95%
installation
Standard Rail35mm
Material of Outer Covering
Fiber Glass Reinforced Plastic