CN2364647Y - Automatic switch of intercom for building - Google Patents

Automatic switch of intercom for building Download PDF

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Publication number
CN2364647Y
CN2364647Y CN 99209117 CN99209117U CN2364647Y CN 2364647 Y CN2364647 Y CN 2364647Y CN 99209117 CN99209117 CN 99209117 CN 99209117 U CN99209117 U CN 99209117U CN 2364647 Y CN2364647 Y CN 2364647Y
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pin
extension set
extension
meets
power supply
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CN 99209117
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Chinese (zh)
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季圣光
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Individual
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Abstract

The utility model relates to an automatic switch of an intercom for a building, which is composed of a main machine, an extension, connecting wires and a power supply. The main machine and the extension comprise single chip mirocomputers 2051 and 1051 matched with a dual tone decoder 8870 and a counter 4060 to work to control actions of a relay to achieve the functions of mutual call of the main machine and the extension, secret taking, automatic door opening by a cipher, emergent group call, etc. The main machine is connected with all extensions only by a four-core wire in parallel. The utility model has the advantages of simple structure, stable performance and low cost. The utility model can be applied to an intercom system for the building (matched with an anti-theft automatic door), and can also be used for communicating for civil and commercial purposes.

Description

CPU building talkback automatic switch-board
The utility model relates to and a kind ofly is applied to the antitheft automatically-controlled door intercom system of building, and building are said the CPU building talkback automatic switch-board of automatic switching system.
The present antitheft automatic door unit of building, the simple uni-directional call system that mostly is of employing, just doorbell formula intercom system is pressed the room number of being visited by the visitor, and with resident family's intercommunication conversation in the building, resident family implements to open the door.Only need press the button that opens the door when going out the building can go out.The weak point of its existence is, the first, open the door owing to do not establish password, and give the lawless person with opportunity, to implement inside and outside two-way password by resident family when opening the door and open the door as design, the door that the lawless person is advanced comes and does not go out door, makes resident family safer.The second, because employing is doorbell formula intercom system, can't realize conversation in the building between the resident family, and meet when happening suddenly emergency and can't call out mutually that function is limited.
Its purpose of the utility model just is to provide a kind of CPU building talkback automatic switch-board, not only being provided with inside and outside two-way password opens the door, and can realize communicating with each other and grouping busy in emergency circumstances between resident family, function is many, simple in structure, easy to use, cost is low, also can be used for communication separately and do the switch use.
The technical scheme that realizes above-mentioned purpose and take comprises, form by main frame, extension set and line thereof and power supply, main, extension set comprises master, extension set, control circuit, power supply and line, and main frame only is connected in parallel with one quad with whole extension sets, and the host computer control circuit comprises single-chip microcomputer IC 22051, double-tone frequency decoder IC 38870 and control relay J 1, J 2The switching tube N of action 1, N 2The extension set control circuit comprises single-chip microcomputer IC 2' 1051, double-tone is decoder IC frequently 3' 8870 and control relay J 1', loud speaker S 1The switching tube N of action 1', N 2'.
The utility model is described in further detail below in conjunction with accompanying drawing,
Fig. 1 is this device main frame electrical schematic diagram;
Fig. 2 is this device extension set electrical schematic diagram.
This device is made up of main frame, extension set and line thereof and power supply, and main, extension set comprises master, extension set, control circuit, power supply and line, and main frame only is connected in parallel with one quad with whole extension sets, and the host computer control circuit comprises single-chip microcomputer IC 22051, double-tone frequency decoder IC 38870 and control relay J 1, J 2The switching tube N of action 1, N 2, its formation comprises single-chip microcomputer IC 22051 the 1st pin one tunnel are through resistance R 3Connect (one) end of four-core line, the one tunnel through diode D 5, electric capacity E 3After meet stabilized voltage power supply Z 11 pin, IC 2The 2nd pin meets host phone machine one end line K, IC 2The 3rd pin is through diode D 1Meet host phone machine one end line K, another road connects quad X end, simultaneously by R 8From stabilized voltage power supply Z 11 pin introduce the detection voltage of pact+5V.IC 2The 5th pin meets double-tone decoder IC frequently 38870 the 8th pin, IC 2The 6th pin one tunnel meets button S 1One end, another road is through capacitor C 4, resistance R 4After meet stabilized voltage power supply Z 11 pin, IC 2The 8th pin is connected on resistance R 4With capacitor C 4Between, simultaneously through resistance R 12Meet triode N 1Base stage, triode N 1Emitter meets four-core line () end, triode N 1Collector electrode is through relay J 1, J 2Meet triode N behind the coil 2Collector electrode, relay J 1Unblank start end S end of contact one termination, the other end is through inductance I 2After connect the 12V end of quad, relay J 2Contact one another end line of termination host phone machine L, the L12V end of another termination quad, IC 2The 9th pin one tunnel is through resistance R 2Meet stabilized voltage power supply Z 11 pin, another road meets triode N 2Base stage, triode N 2Emitter meets quad () end, triode N 2Collector electrode is through relay J 2, inductance I 3Connect quad 12V end, IC 2The 10th pin meets four-core " " end, IC 2The 11st pin is held IC through the L12V that resistance R 7 connects the four-core line 2The 12nd pin is through resistance R 10One the tunnel meets IC 38870 the 18th pin, the one tunnel meets stabilized voltage power supply Z 11 pin, IC 2The 13rd pin is through resistance R 11Connect " one " end of quad, IC 215th, 16,17,18,19 pin meet double-tone decoder IC frequently 38870 the 15th, 14,13,12,11 pin, IC 2The 20th pin one tunnel is through electric capacity E 2Connect (one) end of four-core line, the one tunnel through diode D 3Meet stabilized voltage power supply Z 11 pin, IC 38870 the 1st pin meet 4 pin, IC 3The 2nd pin one tunnel is through resistance R 9Connect 3 pin, the one tunnel through resistance R 6, capacitor C 2Connect the L12V end of four-core line, IC 35th, connect (one) end of four-core line after 6,9 pin link to each other, IC 37th, the indirect crystal oscillator G of 8 pin.The extension set control circuit comprises single-chip microcomputer IC 2' 1051, double-tone frequency decoder IC 3' 8870 and control relay J 1', loud speaker S 1The switching tube N of action 1', N 2', its formation comprises single-chip microcomputer IC 2' 1051 the 1st pin one tunnel are through resistance R 3' connect (one) end of four-core line, the one tunnel through diode D 5', electric capacity F 3' after meet stabilized voltage power supply Z 1' 1 pin, IC 2' the 2 pin extension telephone set one end line K, IC 2' the 3 pin is through diode D 1' connecing the 2nd pin, another road connects quad X end, simultaneously by R 8From stabilized voltage power supply Z 11 pin introduce the detection voltage of pact+5V.IC 2' the 5 pin meets IC 3' 8870 the 8th pin, IC 2' the 8 pin one tunnel is through resistance R 2' meet stabilized voltage power supply Z 1' 1 pin, the one tunnel meets triode N 1' base stage, triode N 1' emitter meets four-core line () end, N 1' collector electrode is through relay J 1' coil connects quad 12V end, relay J 1' contact one termination extension set, one end line L, another termination four-core line L12V end, IC 2' the 9 pin one tunnel is through resistance R 4' meet stabilized voltage power supply Z 11 pin, the one tunnel meets triode N 2' base stage, N 2' emitter meets four-core line () end, N 3Collector electrode is through loud speaker S 1Inductance I 1' meet quad 12V to hold IC 2' the 10 pin meets (one) end of four-core line, IC 2' the 11 pin is through resistance R 7' meet the L12V end of four-core line, IC 2' the 12 pin is through resistance R 10One the tunnel meets IC 3' 18 pin, another road meets stabilized voltage power supply Z 1' 1 pin, IC 2' the 13 pin is through resistance R 11', connect 10 pin, IC 2' the 15,16,17,18,19 pin meet IC 3' 8870 the 15th, 14,13,12,11 pin, IC 2' the 20 pin one tunnel is through electric capacity E 2' connect (one) end of four-core line, the one tunnel through diode D 3' meet stabilized voltage power supply Z 1' 1 pin, IC 3' 8870 the 1st pin meet 4 pin, IC 3' the 2 pin one tunnel is through resistance R 9' connect 3 pin, the one tunnel through resistance R 6', capacitor C 2' meet the L12V end of four-core line, IC 3' the 5,6, connect (one) end of four-core line after 9 pin link to each other, IC 3' the 7,8 pin are to meeting crystal oscillator G '.
Simultaneously, for preventing to disturb, corresponding access counter IC in its master, the extension set control circuit 14060, it is connected to IC 14060 the 3rd pin are through diode D 4Meet single-chip microcomputer IC 22051 (or 1051) the 1st pin, IC 1The 8th pin meets four-core line () end, IC 1The 12nd pin meets IC 22051 (or 1051) the 12nd pin, IC 1The 11st pin one tunnel meets IC 38870 the 8th pin, another road meets IC 22051 (or 1051) the 5th pin, IC 1The 16th pin meets stabilized voltage power supply Z 11 pin.
Its operation principle following (is example with the building talkback automatic switch-board),
1, main frame (doorway machine) is unblanked, and opens the door and the guest calls out
As shown in Figure 1, password unlocking (opening the door automatically), single-chip microcomputer IC 22051 default five figure unlocking ciphers, single-chip microcomputer IC by programming 22051 promptly start working after energized, approximately finish a program running every 1ms.Its 8 pin, 9 pin output low levels during standby, triode N 1, N 2End relay J 1, J 2Discharge host phone machine and automatic switch-board (control circuit) open circuit.When resident family's inlet/outlet, click button S earlier 1, IC 2The drop-down over the ground triggering of 6 pin, 9 pin output high level, triode N 2Conducting, relay J 2Adhesive, host phone machine and automatic switch-board are connected, IC 211 pin through resistance R 7" dialing tone " to host phone machine and whole branch exchange machine output yowl allows the main frame dialing.From the door-opening password signal of keyboard input through capacitor C 2, resistance R 6Input IC 38870 2 pin are exported 8421 yards to JC after double-tone is decoded frequently 22051, if conform to coding in its program, IC then 28 pin output high level, triode N 1Conducting (about 2 seconds), relay J 1Adhesive, S end to electric control lock and automatic antitheft door driving governor send to startups, unblank, enabling signal, actuator finishes once automatic open and close door and moves.
If the guest is visiting, also is the S that touches the button earlier 1, but through host phone switch dish input be three figure place room numbers (they being the calling order coding of extension set), IC 3Pass to IC after 8870 decodings 22051 signal is not (lock) password that opens the door, so the IC of main frame switch 22051 attonitys, but three-figure calling sign indicating number is through relay J 2Normally opened contact (closed) is exported to whole extension sets through quad by the L12V end, implements password unlocking (opening the door) by house-owner on extension set after conversing with house-owner.
Counter IC among the figure 14060 effect: well-known, single-chip microcomputer is afraid of to disturb counter IC most 1For guaranteeing single-chip microcomputer IC 2Normally move and be provided with.The 3.58MHZ oscillator signal that is produced by crystal oscillator G is through IC 111 pin inputs, in the sheet through the low frequency signal of 14 grades of high accuracy frequency divisions, through diode D from the about 2240HZ/2.24ms of 3 pin output 4Deliver to single-chip microcomputer IC 21 pin make it ask the resetting of zero.If single-chip microcomputer IC 2Operate as normal, its 12 pin can be to IC 112 pin carry reset signal, and this signal is about 1ms, it does not wait IC 1Send reset signal just earlier with IC 1So zero clearing is as long as IC 2Normal operation, IC 1Just can not be to IC 2Send reset signal, have only the IC of working as 2Program is because of disturbing or other reason when " deadlocks " (2ms does not have signal to export) occurring IC 1Just can be to IC 2Send to reset signal, make it recover operate as normal.
2, main frame is called out extension set
As shown in Figure 2, when main frame when whole extension sets (as long as be connected in parallel on the quad all extension sets) are carried three-figure callings yard, signal by the L12V port through capacitor C 2', resistance R 6' enter IC 3' 2 pin, through the decoding after pass to single-chip microcomputer IC 2' 1051, when identifying the calling sign indicating number that is not oneself, then 8 pin are exported high level, N 1' conducting, J 1' adhesive is cut off the extension set path, to ensure others' secret telephony.Have only call out unique extension set that sign indicating number meets can be from its 9 pin output high level, allow S 1Sounding (ring), behind this machine off-hook, L 1Connect extension set with K, with the main frame conversation, this moment is because of IC 2' 2 pin current potentials drop-down over the ground, become low level by high level, therefore also 3 pin are moved to low level, and the low level signal of 3 pin passes to whole extension sets through the X end, pins the IC in other extension sets 2' 2 pin have also just been controlled J 1' keep adhesive, cut off the path that other extension sets are proposed the machine dialing.Extension set (house-owner) and guest agree that it enters at the back of conversing, and then press the five-digit number door-opening password on extension set, and main frame is exported and unblanked, enabling signal, implements to open the door.
3, extension set and call extension conversation
Every extension set can directly be dialed any other extension set, and because of every extension set all possesses the function of call identifying sign indicating number, this is the characteristics of this device technique.
4, group busy
(as fire, acute disease, chase criminal etc.) main frame or extension set can all be whole extension sets logical under the state of emergency, as long as each extension number of input continuously, can allow the branch power ringing successively successively.
5, adjunction and conversion optical signal arbitrarily automatically
IC at extension set 2' the 9 pin output also connects a triode and relay, just can change the visual image signal easily---when arriving, the call extension signal starts camera and monitor.
Compared with prior art this device has the following advantages:
1, owing to adopted single-chip microcomputer 2051,1051 cooperation double-tones frequency decoders 8870, counter 4060 to work, thereby realized the mutual calling of main extension, secret telephony, password unlocking (opening the door automatically), function such as group busy under the state of emergency, have powerful, safe and reliable characteristics.
2, because main frame only is connected in parallel with one quad with whole extension sets, and it is very simple to connect up, thus have simple in structure, dapper characteristics (volume only is 75 * 50 * 23 cubic millimeters).
3, owing to adopted single-chip microcomputer work, thereby have powerful application function, not only can be used for the antitheft automatic intercom system of building, also can independently use as SPC telephone exchange, the automaticity height, and simple in structure, stable performance, cost is low, and is simple, convenient.
Though 4 tool automatic switch-board functions do not have traditional bulky " switch ", more need not every extension set and put two lines to " switch ".Therefore can be widely used in open-air interim or mobility communication, be more suitable in military.Example field telephone: suppose that headquarter are main frame, tens part machines are established in each position, in ten kilometers, only need get final product all extension sets in parallel with the quad that an external diameter is 5 millimeter, if configuration 12V small power supply on each extension set, so no matter to explode how many phones, as long as also have a pair of phone also in succession, can both converse, the effect militarily of this function will produce tremendous influence.

Claims (2)

1, a kind of CPU building talkback automatic switch-board, form by main frame, extension set and line thereof and power supply, main, extension set comprises master, extension set, control circuit, power supply and line, it is characterized in that, main frame only is connected in parallel with one quad with whole extension sets, and the host computer control circuit comprises single-chip microcomputer IC 22051, double-tone frequency decoder IC 38870 and control relay J 1, J 2The switching tube N of action 1, N 2The extension set control circuit comprises single-chip microcomputer IC 2' 1051, double-tone is decoder IC frequently 3' 8870 and control relay J 1', loud speaker S 1The switching tube N of action 1', N 2'.
2, a kind of CPU building talkback automatic switch-board according to claim 1 is characterized in that, for preventing to disturb, corresponding access counter IC in its master, the extension set control circuit 14060, it is connected to IC 14060 the 3rd pin are through diode D 4Meet single-chip microcomputer IC 22051 or 1051 the 1st pin, IC 14060 the 8th pin meet an end of four-core line, IC 1The 12nd pin meets IC 22051 or 1051 the 12nd pin, IC 1The 11st pin one tunnel meets IC 38870 the 8th pin, another road meets IC 22051 or 1051 the 5th pin, IC 1The 16th pin meets stabilized voltage power supply Z 11 pin.
CN 99209117 1999-04-16 1999-04-16 Automatic switch of intercom for building Expired - Fee Related CN2364647Y (en)

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Application Number Priority Date Filing Date Title
CN 99209117 CN2364647Y (en) 1999-04-16 1999-04-16 Automatic switch of intercom for building

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 99209117 CN2364647Y (en) 1999-04-16 1999-04-16 Automatic switch of intercom for building

Publications (1)

Publication Number Publication Date
CN2364647Y true CN2364647Y (en) 2000-02-16

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CN 99209117 Expired - Fee Related CN2364647Y (en) 1999-04-16 1999-04-16 Automatic switch of intercom for building

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CN (1) CN2364647Y (en)

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C19 Lapse of patent right due to non-payment of the annual fee
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