This article describes how to make use of simple means an apartment intercom.
Длительное использование домофона натолкнуло автора на интересную доработку, которая в значительной степени улучшила потребительские качества устройства. Не секрет что при всём удобстве использования домофона имеется в нём один недостаток – это ручное подключение/отключение от линии. Если домовладелец забыл отключить домофон вечером, то его могут разбудить в ночное время желающие войти в подъезд соседи и иные лица без ключей, если утром забыл включить, то могут не попасть в подъезд родственники.
The idea is to install electronic watches yn ravljajushhih inclusion and disconnecting the tube line intercom. Board electronic watches KG316 was purchased on the site aliexpress [1] it was developed the scheme of Fig. 1. This module allows you to program up to 10 individual special timers.
Figure. 1
When the timer is triggered at exit J1 A1 module level is about 1 in which, through the resistor R3 from disclose transistor VT2, which, through the resistor R2 closes transistor VT1 and intercom will be disabled.
In a falling level at the output of the module or failure of BA PowerChute interface GB1 key on VT2 closed and transistor VT1 open triumphs through the resistor R1 only in case of voltage in the line during a call or the conversation when the intercom will be connected to the line. If the intercom is off in the evening or night time force you can connect switch SA1.
Fig. 2
In Fig. 3 shows a diagram of the finalization of the door intercommunication system with which the module M1616C (fig. 2), which can also be purchased on the site, aliexpress [2]. This module lets you program a maximum of 16 em individual timers. The mouth of the device, shown in Fig. 3, works like described above board.
Fig. 3
Diagram of a typical tube of the door intercommunication system is shown in Fig. 4. When connecting the pipes to the timers VD1 diode (fig. 4), it is advisable to remove.
Fig. 4
Programmable module KG316 (fig. 5) on time. The current clock time is exhibited when simultaneous Nom buttons Clock and Min (minute) or Hour (hours) or Week (day of week). By pressing the On/Off move the triangle in the second position. All 10 timers you can turn on/off programming intercom you BOR rooms timer (using the Prog button), and same time, Min, Hour and day of the week Week program concerned the appropriate buttons. Because the key to VT1, VT2 inverts the signal from the output of the KG316 module, the display timer Off will correspond to the connecting tube and On disable.
Fig. 5
Links:
- https://ru.aliexpress.com/item/2015-HOT-SALE-Microcomputer-programmable-control-timing-module-10-on-10-off-clock-timer-timer- switch/32301076410.html
- https://ru.aliexpress.com/item/Microcomputer-programmable-control-delay-real-time-timing-module-16-on-16-off-clock-timer-timer- switch/32619863983.html
Author: Sergei Abramov, Orenburg
Source: Electric 7-8/2017