The right choice of a high quality, suitable price alarm host is very important for the alarm center. Once the host is selected, it not only relates to the user's property and life safety, but also determines the center's after-sale maintenance workload and service costs. However, in the face of the security market's various host brands how to master the selected standards, and thus make the right decision, there is a certain degree of difficulty. In order to complete the correct choice objectively and conveniently, based on the author's experience in research, development, production, and use for many years, I believe that the following aspects should be used as the basis for judgment.
Convenience of operation Convenient operation is an important criterion. No matter how good the equipment is, if the operation is very inconvenient and difficult to grasp, it is impossible to get praise and welcome from users. The professional host of the alarm is strong, especially the mainframe, and the operation content is more. Therefore, it is more important if the method is simple.
1, the operation of the way: If the host can use a variety of operating methods, naturally will bring greater convenience to the user. Various methods include wireless remote control operation, keyboard operation, remote telephone operation, center remote operation and the like. For simple arming and disarming, it is also possible to control with a simple normally open or normally closed switch contact by changing the trigger condition of the zone.
2, regularity: host applications, including program design and regular operations, its embedded software design should pay attention to regularity, and in line with the user's psychology and habits, easy to remember easy to master. The operation should be closely combined with the sound and light prompts to show clear meanings at a glance and not easily misunderstood.
3, routine maintenance: In addition to regular operations, but also take into account the maintenance of equipment. Some hosts have special engineering installation test procedures that make maintenance easy and convenient. Some hosts also have dedicated wireless remote controllers for patrolling (on-the-spot reporting).
Anti-human destruction of such man-made damage, including operational errors and conscious destruction of two kinds, such as interface line misconnection, short circuit, open circuit, electrical parameters exceed the pointer requirements, improper use of the load. Different from home appliances, even if it belongs to human problems, the alarm host should still have strong fault tolerance. This is due to the special requirements caused by the special nature of the security industry.
The alarm host should have strong anti-destruction capability, and even if some circuits are in an abnormal state due to human factors, other parts can still continue to work. For example, when the auxiliary power supply is forced to short-circuit, not only the power supply itself should be in a self-protected state, but also the communication of the host computer should not be affected by the auxiliary power supply. In this case, the system can guarantee even if the illegal intruder intentionally destroys. Communication will report the situation to the center in a timely manner.
Whether the data of the data and service products is complete, and whether the pre-sales and after-sales services are in place is an important aspect. Mainly include the following.
Information: To check the product's license, such as 3C demonstration, product certification, etc. Whether the packaging of the product is formal, whether the manual and spare parts are complete, especially the instructions for use should be paid more attention. Immature products, the instructions are often not standardized, there will be even a lot of typos, misunderstood or improper description. Pay attention to the qualifications of the company itself. If you have an ISO international quality certificate, you can naturally increase the credibility of the product.
Commitments and measures: The factory's services include pre-sales performance introduction and training, after-sales three packs time, three packs beyond the deadline for maintenance, and institutions and measures to implement these commitments. If there is only promise, but there is no guarantee of the system and measures, this commitment is just a means of marketing, and with the nature of self-deception.
The price of a product is naturally an important factor to consider. The principle of selection is to select the best product when the price is basically in the same grade, or to select the product with the lowest price if the quality, function, service and other aspects are basically the same.
In the process of judging electronic products, people often use the performance-cost ratio as a standard. For security products, since the products are directly related to the user's life and property safety, their performance and quality have more important significance. If the quality is flawed, even if the price is cheaper, it will not be available. In this case, if you talk about performance-price ratio, you will lose meaning.
Comprehensive scoring In order to quantify the application of the control panel, a scoring system is recommended for selection and comparison (Table 1). However, this score is not the same as the simple score. In the five aspects mentioned above, if there is a big problem in any one aspect, it will have a great impact on the host as a whole, just as having the nature of “one vote vetoâ€. And the proportion of each aspect in the total score is adjusted by the weighted value. The author suggests that the following list scoring method be used in practice. As for each specific score, what percentage of the total score should be accounted for, and will vary with each person's mastery of the standard differences. This is just to provide a reference value.
Explanation:
1. In the above five aspects, each aspect is categorized as qualified and should be determined by the user's specific conditions (such as technical level, work experience, and different requirements).
2. If a project is under a qualified score, it should be rejected.
3, each aspect is above the qualified level, and then assess the total score for comparison.
4. Total score calculation: Total score Z=A×20%+B×50%+C×10%+D×10%+E×10%
5, no failure of the work of a time, it takes a long time to reach a conclusion, in the unconditional case, the use of batch trial and questioning combination of ways, and strive to be reliable.
Convenience of operation Convenient operation is an important criterion. No matter how good the equipment is, if the operation is very inconvenient and difficult to grasp, it is impossible to get praise and welcome from users. The professional host of the alarm is strong, especially the mainframe, and the operation content is more. Therefore, it is more important if the method is simple.
1, the operation of the way: If the host can use a variety of operating methods, naturally will bring greater convenience to the user. Various methods include wireless remote control operation, keyboard operation, remote telephone operation, center remote operation and the like. For simple arming and disarming, it is also possible to control with a simple normally open or normally closed switch contact by changing the trigger condition of the zone.
2, regularity: host applications, including program design and regular operations, its embedded software design should pay attention to regularity, and in line with the user's psychology and habits, easy to remember easy to master. The operation should be closely combined with the sound and light prompts to show clear meanings at a glance and not easily misunderstood.
3, routine maintenance: In addition to regular operations, but also take into account the maintenance of equipment. Some hosts have special engineering installation test procedures that make maintenance easy and convenient. Some hosts also have dedicated wireless remote controllers for patrolling (on-the-spot reporting).
Anti-human destruction of such man-made damage, including operational errors and conscious destruction of two kinds, such as interface line misconnection, short circuit, open circuit, electrical parameters exceed the pointer requirements, improper use of the load. Different from home appliances, even if it belongs to human problems, the alarm host should still have strong fault tolerance. This is due to the special requirements caused by the special nature of the security industry.
The alarm host should have strong anti-destruction capability, and even if some circuits are in an abnormal state due to human factors, other parts can still continue to work. For example, when the auxiliary power supply is forced to short-circuit, not only the power supply itself should be in a self-protected state, but also the communication of the host computer should not be affected by the auxiliary power supply. In this case, the system can guarantee even if the illegal intruder intentionally destroys. Communication will report the situation to the center in a timely manner.
Whether the data of the data and service products is complete, and whether the pre-sales and after-sales services are in place is an important aspect. Mainly include the following.
Information: To check the product's license, such as 3C demonstration, product certification, etc. Whether the packaging of the product is formal, whether the manual and spare parts are complete, especially the instructions for use should be paid more attention. Immature products, the instructions are often not standardized, there will be even a lot of typos, misunderstood or improper description. Pay attention to the qualifications of the company itself. If you have an ISO international quality certificate, you can naturally increase the credibility of the product.
Commitments and measures: The factory's services include pre-sales performance introduction and training, after-sales three packs time, three packs beyond the deadline for maintenance, and institutions and measures to implement these commitments. If there is only promise, but there is no guarantee of the system and measures, this commitment is just a means of marketing, and with the nature of self-deception.
The price of a product is naturally an important factor to consider. The principle of selection is to select the best product when the price is basically in the same grade, or to select the product with the lowest price if the quality, function, service and other aspects are basically the same.
In the process of judging electronic products, people often use the performance-cost ratio as a standard. For security products, since the products are directly related to the user's life and property safety, their performance and quality have more important significance. If the quality is flawed, even if the price is cheaper, it will not be available. In this case, if you talk about performance-price ratio, you will lose meaning.
Comprehensive scoring In order to quantify the application of the control panel, a scoring system is recommended for selection and comparison (Table 1). However, this score is not the same as the simple score. In the five aspects mentioned above, if there is a big problem in any one aspect, it will have a great impact on the host as a whole, just as having the nature of “one vote vetoâ€. And the proportion of each aspect in the total score is adjusted by the weighted value. The author suggests that the following list scoring method be used in practice. As for each specific score, what percentage of the total score should be accounted for, and will vary with each person's mastery of the standard differences. This is just to provide a reference value.
Explanation:
1. In the above five aspects, each aspect is categorized as qualified and should be determined by the user's specific conditions (such as technical level, work experience, and different requirements).
2. If a project is under a qualified score, it should be rejected.
3, each aspect is above the qualified level, and then assess the total score for comparison.
4. Total score calculation: Total score Z=A×20%+B×50%+C×10%+D×10%+E×10%
5, no failure of the work of a time, it takes a long time to reach a conclusion, in the unconditional case, the use of batch trial and questioning combination of ways, and strive to be reliable.
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