Intercom device, inter-floor equipment and system for building paging

An intercom device and building technology, which is applied in the intercom device for building paging, interlayer equipment and system fields, can solve the problems of high circuit cost and development cost, complex implementation methods, and inapplicability, and achieve software cost saving, The effect of simple and reliable work and reduced material cost
CN103248968BActive Publication Date: 2016-04-27GUANGDONG ANJUBAO DIGITAL TECH
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
GUANGDONG ANJUBAO DIGITAL TECH
Publication Date
2016-04-27

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Abstract

The invention discloses a talkback device and an interlayer device and system for building paging. The talkback device comprises a command signal generating unit, a data drive output unit and an extension set picking and hanging up detection unit, wherein the command signal generating unit is used for generating a plurality of square signals with different periods; the data drive output unit is connected with the command signal generating unit and is used for sending the square signals; and the extension set picking and hanging up detection unit is respectively connected with the command signal generating unit and the data drive output unit and is used for detecting the working state of the talkback device and controlling the on-off of the data drive output unit according to the current working state. According to the invention, a CPU (central processing unit) component is not needed, the device cost is reduced, the corresponding software cost is reduced, the development difficulty is reduced, and the maintenance cost after sale is reduced as far as possible.
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Description

technical field

[0001] The invention relates to building security technology, in particular to an intercom device, interlayer equipment and system for building paging. Background technique

[0002] In the building intercom system industry, the data command communication between the inter-floor equipment and the home extension equipment generally adopts the following two methods. One is that the home extension equipment uses MCU single-chip microcomputer, data transceiver drive interface circuit and data commands. The combination of communication and communication protocols enables the exchange of data commands with the inter-layer equipment, thereby realizing the basic functions of on-hook, on-hook, unlocking, monitoring, calling the management office, and alarm functions of the home extension equipment; the other way is in The home extension equipment adopts the voltage division method to transmit different level values ​​to the interlayer equipment to represent different d...

Claims

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