At present, there are many types of building intercom systems with alarm functions on the market. Professional alarm systems have been recognized by ordinary residents from the “old Wang Xietang front Yan and flew into the homes of ordinary people†and are the result of years of promotion in the field of intelligence. But isn't a host with alarm function that can really meet the alarm requirements of the household?
The design of building intercom alarm system should take full account of different objects of use and different use environments. Many important functions of professional alarms must be absorbed in technical design to ensure that the alarm system can be used in a large number of civilian applications. It must not be only functional. The furnishings, selling points on the sale.
1. Reliable communication protection The alarm signal received by the building intercom alarm module must be reported to the management center reliably. No false alarms, especially missing reports, can be made to ensure that the alarm is successful. The alarm information confirms whether the alarm part of the building intercom receives the alarm signal and sends it to the management center. The central alarm information confirmation mechanism must be established. After the management center receives the alarm information, the alarm host shall send a confirmation signal indicating The center has received, and the building intercom alarm host should retransmit when it does not receive the confirmation signal.
Alarm information verification alarm information and building intercom communication information share data line and management center network, complex line problems, communication conflicts (alarm and building intercom information) may cause alarm information error, must verify the communication information (for example, CRC, checksum, etc.), the management center checks the information and retransmissions errors; the communication interception alarm information adopts an active transmission mode, and the communication line is intercepted before transmission to avoid data rear-end phenomenon, ensuring a communication. success.
2. Rich communication protocols A good alarm host must have a rich scientific communication protocol. A host that can only alarm and communicate before has a large distance from practical requirements. For example, the internationally popular Ademco4+2 and AdemcoContactId alarm communication protocols are relatively complete and scientific. However, in civil affairs, many communication contents can be saved, but the following items have special significance. When the host disarms and defends the function, when the occupant disarms the building intercom alarm, the alarm should report the status to the management center, which has special significance.
The use of alarms by tenants may cause disputes. For example, if someone else fails to arm the system for reasons, resulting in loss of property, it may warn about the failure of the alarm system and request a claim. At this time, the management center can query the user to confirm the release of the armed record. This kind of case appeared in reality in many cases; the management center can also monitor the status of important user hosts in time, and even the management center can take the initiative to disarm the occupants.
Self-test function
The alarm system is a product that is not afraid of 10,000 and is afraid that it will be in the event of normal use. However, in the event of an alarm, it is necessary to ensure that the alarm is successful! It is difficult for the tenant to think that the alarm is normal or not, and the alarm design should have a self-checking function. The results of the self-inspection should be regularly reported to the management center to be monitored by the management center, and the fault should be immediately maintained.
The center actively withdraws the defense function.
In the case of authorization, the management center can send instructions to arm the resident host to avoid unnecessary losses and reduce the hassle of the occupants;
3. Integrate with the building intercom design The design of the alarm host and the indoor building intercom host make an integrated design, which ensures the user's operation and use is more convenient, the integration is high, and the construction of the project is also introduced. The following items deserve attention in the design.
Modular design Modular design can not only bring convenience to the manufacturer, but also very suitable for practical needs. As a basic component, the building intercom is installed in the residents' homes. Generally, the intercom is installed at one time, and the alarm module is specifically installed according to the user's requirements. Modular design can be flexibly applied to this model to reduce the intelligent investment, and the engineering company is willing to accept it.
Uniform wiring of the building intercom and alarm system is integrated into the wiring board of the indoor building intercom host. From the non-visual - "visual -" alarm no need to re-wiring, easy system upgrade;
The one-line design building intercom and alarm system can share the same data line (two-core 485 bus), reducing the amount of wiring, and facilitate the integration of the central system. However, if it is necessary to satisfactorily solve the problem of conflict between a large number of building intercom messages and alarm messages on a line, a reasonable communication protocol must be formulated.
Humanized operation design The daily operation of the alarm system (disarming, emergency alarms, etc.) is intended for users at all levels. For example, if you use push-button operation as much as possible, you must have clear indicators and horn prompts. If possible, use a remote control to focus your daily operations on the remote control. The alarm console is completely transparent to the user.
The design of building intercom alarm system should take full account of different objects of use and different use environments. Many important functions of professional alarms must be absorbed in technical design to ensure that the alarm system can be used in a large number of civilian applications. It must not be only functional. The furnishings, selling points on the sale.
1. Reliable communication protection The alarm signal received by the building intercom alarm module must be reported to the management center reliably. No false alarms, especially missing reports, can be made to ensure that the alarm is successful. The alarm information confirms whether the alarm part of the building intercom receives the alarm signal and sends it to the management center. The central alarm information confirmation mechanism must be established. After the management center receives the alarm information, the alarm host shall send a confirmation signal indicating The center has received, and the building intercom alarm host should retransmit when it does not receive the confirmation signal.
Alarm information verification alarm information and building intercom communication information share data line and management center network, complex line problems, communication conflicts (alarm and building intercom information) may cause alarm information error, must verify the communication information (for example, CRC, checksum, etc.), the management center checks the information and retransmissions errors; the communication interception alarm information adopts an active transmission mode, and the communication line is intercepted before transmission to avoid data rear-end phenomenon, ensuring a communication. success.
2. Rich communication protocols A good alarm host must have a rich scientific communication protocol. A host that can only alarm and communicate before has a large distance from practical requirements. For example, the internationally popular Ademco4+2 and AdemcoContactId alarm communication protocols are relatively complete and scientific. However, in civil affairs, many communication contents can be saved, but the following items have special significance. When the host disarms and defends the function, when the occupant disarms the building intercom alarm, the alarm should report the status to the management center, which has special significance.
The use of alarms by tenants may cause disputes. For example, if someone else fails to arm the system for reasons, resulting in loss of property, it may warn about the failure of the alarm system and request a claim. At this time, the management center can query the user to confirm the release of the armed record. This kind of case appeared in reality in many cases; the management center can also monitor the status of important user hosts in time, and even the management center can take the initiative to disarm the occupants.
Self-test function
The alarm system is a product that is not afraid of 10,000 and is afraid that it will be in the event of normal use. However, in the event of an alarm, it is necessary to ensure that the alarm is successful! It is difficult for the tenant to think that the alarm is normal or not, and the alarm design should have a self-checking function. The results of the self-inspection should be regularly reported to the management center to be monitored by the management center, and the fault should be immediately maintained.
The center actively withdraws the defense function.
In the case of authorization, the management center can send instructions to arm the resident host to avoid unnecessary losses and reduce the hassle of the occupants;
3. Integrate with the building intercom design The design of the alarm host and the indoor building intercom host make an integrated design, which ensures the user's operation and use is more convenient, the integration is high, and the construction of the project is also introduced. The following items deserve attention in the design.
Modular design Modular design can not only bring convenience to the manufacturer, but also very suitable for practical needs. As a basic component, the building intercom is installed in the residents' homes. Generally, the intercom is installed at one time, and the alarm module is specifically installed according to the user's requirements. Modular design can be flexibly applied to this model to reduce the intelligent investment, and the engineering company is willing to accept it.
Uniform wiring of the building intercom and alarm system is integrated into the wiring board of the indoor building intercom host. From the non-visual - "visual -" alarm no need to re-wiring, easy system upgrade;
The one-line design building intercom and alarm system can share the same data line (two-core 485 bus), reducing the amount of wiring, and facilitate the integration of the central system. However, if it is necessary to satisfactorily solve the problem of conflict between a large number of building intercom messages and alarm messages on a line, a reasonable communication protocol must be formulated.
Humanized operation design The daily operation of the alarm system (disarming, emergency alarms, etc.) is intended for users at all levels. For example, if you use push-button operation as much as possible, you must have clear indicators and horn prompts. If possible, use a remote control to focus your daily operations on the remote control. The alarm console is completely transparent to the user.
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