CN100502499C - Storied building visible intercommunication system - Google Patents
Storied building visible intercommunication system Download PDFInfo
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- CN100502499C CN100502499C CNB2005100284038A CN200510028403A CN100502499C CN 100502499 C CN100502499 C CN 100502499C CN B2005100284038 A CNB2005100284038 A CN B2005100284038A CN 200510028403 A CN200510028403 A CN 200510028403A CN 100502499 C CN100502499 C CN 100502499C
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Abstract
The invention relates to a building visible intercommunication system, wherein the central manager, the door manager, the floor distributor and the indoor machine all have modulate interface circuits; the controllers are connected by three-core wires; said wire comprises two-corn bus L_BUS and one-core video wire; the modulate interface circuit processes DTMF code on the communication data sent between units, to modulate the code signal and voice signal to the power source, to be superposed on the system core bus L_BUS, and demodulate the received information from the system core bus L_BUS to drive relative unit. The invention can reduce three wires than present one, with simple operation.
Description
Technical field
The present invention relates to a kind of communication equipment, more specifically, relate to a kind of building visual intercom system.
Background technology
Along with the improvement of national living conditions, the application of building visual intercom system more and more widely.But, present known building conversational system technology also rests on the basis of multi-thread intercommunication, the voice lines of intercom system, data wire and power line all separate, and the intercommunication from the doorway main frame to each floor each man of resident family divides the confidential very loaded down with trivial details a large amount of wirings of carrying out.The block diagram of existing building conversational system for example shown in Figure 1 therefrom as can be seen, will be used the totally 7 cores wiring of 1 core video line, 2 core voice lines, 2 core data wires, 2 core power lines from the doorway supervisor to the floor distribution device; The doorway supervisor of each building building, use the totally 5 cores wiring of 2 core data wires, 2 core voice lines and 1 core video line in from the centre management machine to the sub-district.Like this, not only install complicatedly, extension set wiring inconvenience, and makeing mistakes easily uses the age of a specified duration, to maintenance or transform and all bring difficulty.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of building visual intercom system, and its wiring is simple, easy to maintenance.
In order to solve the problems of the technologies described above, building visual intercom system of the present invention, be made up of a plurality of control units, described a plurality of control units comprise: centre management machine, doorway supervisor, floor distribution device, indoor set are provided with the modulation interface circuit in described a plurality of control units respectively; Be connected by the wiring of 3 cores between described a plurality of control unit, comprising 2 core system core bus L_BUS and 1 core video line; Modulation interface circuit in the described control unit numerical data that control unit sends of will being correlated with is carried out double-tone multi-frequency coding, double-tone multi-frequency coding signal and voice signal is modulated to power supply together, is superimposed upon system core bus L_BUS; System core bus L_BUS sends and receives the modulation signal of stack, and the modulation interface circuit of described control unit is that voice drive relevant functional circuit with numerical data with its coherent signal demodulating and decoding that receives.
2 core system core bus L_BUS are adopted in wood invention, add that 1 core video line promptly finished the multi-thread unification of communication backbone and the function of video intercom, thereby reach the purpose that reduces the visible dialogue system wiring.
The beneficial effect of building visual intercom system of the present invention is transformation and the installation that has made things convenient for existing sub-district, building conversational system; Simplify the installation work in the block, reduced the inconvenience that the extension set wiring is installed in the wiring of registering one's residence, effectively reduced user cost simultaneously, saved non-ferrous metal in a large number.It is two-way to stressing results that building visual intercom system of the present invention has building, has network savvy simultaneously, can be widely used in numerous places such as residential quarter, plant area, business offices.
Description of drawings
Fig. 1 is the block diagram of prior art building conversational system.
Fig. 2 is the block diagram of building visual intercom system of the present invention.
Fig. 3 is the modulation interface circuit module figure in the building visual intercom system of the present invention.
Fig. 4 is the circuit diagram of modulation interface preferred embodiment in the building visual intercom system of the present invention.
Embodiment
The present invention is further detailed explanation below in conjunction with accompanying drawing.
Fig. 2 is the block diagram of building visual intercom system of the present invention.System constitutes: included the modulation interface circuit in centre management machine, doorway supervisor, floor distribution device, indoor set, adopted the wiring of 3 cores between each control unit.3 cores wirings comprises the 2 core system core bus L_BUS that voice, communication data and the power supply modulation superimposing technique by the modulation interface circuit forms, and adds that 1 core video line promptly finished the multi-thread unification function of communication backbone, has reached the purpose of 3 cores wirings.In the mutual communication process of each control unit, the modulation interface circuit numerical data that control unit sends of will being correlated with is carried out dtmf code, touch-tone signal and voice signal is modulated to power supply together, is superimposed upon on the system core bus L_BUS.System core bus L_BUS sends and receives the modulation signal of stack, and the modulation interface circuit of relevant control unit is that voice drive relevant functional circuit with numerical data with the coherent signal demodulating and decoding that receives.
The signal processing of building visual intercom system of the present invention is as follows:
Resident family is called out at the center.Centralized administrator needs the Lou Hao of resident family that calls out and chamber number by centre management machine input, and the modulation interface circuit of centre management machine number converts the Lou Hao of resident family and chamber to the dtmf code mode, and is modulated to system core bus L_BUS and sends call request.The modulation interface circuit automatic decoding of doorway supervisor runs into and calls out the coded address when identical with this machine address, automatically switches to the floor call state.To resident family's indoor set, the modulation interface circuit automatic decoding of indoor set runs into and calls out the coded address when identical with this machine address the floor distribution device with data signal distribution, automatic-answering back device, and foundation is shaken hands, and produces the ring back tone prompting.After resident family's button is replied, promptly set up talking path.
Resident family is called out on the doorway.The visitor is by doorway supervisor input resident family chamber number, and the doorway supervisor carries out dtmf code by the modulation interface circuit, automatically switches to the floor call state, sends resident family's call request by system core bus L_BUS.To resident family's indoor set, indoor set is by the automatic decoding of modulation interface circuit with data signal distribution for the floor distribution device, run into to call out the coded address when identical with this machine address, and automatic-answering back device, foundation is shaken hands, and produces the ring back tone prompting.After resident family's button is replied, promptly set up talking path.
The resident family call center.Resident family is by the button on the indoor set, converses in the request center, and the modulation interface circuit carries out dtmf code to digital data, and modulation enters system core bus L_BUS dispatching centre call request; The floor distribution device carries out the signal amplification and is transported to the doorway supervisor.The doorway supervisor judges that the call request type is the center call request, judge simultaneously whether the center talking path is in idle condition: A, the center talking path is in idle condition, the doorway supervisor is at once by system core bus L_BUS dispatching centre call request, the centre management machine passes through the modulation interface circuit decoding, automatic-answering back device, and produce the ring back tone prompting, after centre management person's button is replied, promptly set up talking path.B, the center talking path is in busy condition, and the doorway supervisor postbacks the busy order of indoor set bus, and indoor set engaged line indicator light is bright.
The resident family doorway monitors.Resident family is by the button on the indoor set, and the request doorway monitors.Indoor set carries out dtmf code by the modulation interface circuit, sends the doorway monitor request by system core bus L_BUS, and the floor distribution device carries out the signal amplification and is transported to the doorway supervisor.The doorway supervisor judges that the call request type is the doorway monitor request, acknowledges requests at once, and open camera, resident family just can monitor the doorway.
Fig. 3 is the modulation interface circuit module figure in the building visual intercom system of the present invention.
Comprise: power delivery switching circuit 301, output amplifier 302, sound circuit 303, data coding-decoding circuit 304 and mixing demodulation interface 304A thereof and hybrid modulation interface 304B, input amplifying circuit 305, power circuit 306, system core bus L_BUS, and with the continuous cpu control bus of microprocessor.
The function and the signal processing of each module are as follows:
Power delivery switching circuit 301 adopts power delivery switching tube coupling modulation system, dtmf code signal and audio signal is modulated to power supply signal by the power delivery switching tube, the system core that is added to bus L_BUS.Sound circuit 303 is used to receive the pick-up voice signal, and the conversion output audio signal drives loud speaker with the input audio signal output that receives simultaneously.Data coding-decoding circuit 304 comprises mixing demodulation interface 304A and hybrid modulation interface 304B, carries out the encoding and decoding conversion of numerical data and dtmf signal, and with cpu control bus swap data control correlation function circuit.System core bus L_BUS is superimposed with voice, communication data and power supply modulation signal, transmits the exchange message between each unit.Cpu control bus links to each other with the CPU microprocessor, carries out the unified management of system data communication and voice call.Power circuit 306 is used to produce the system works stabilized voltage power supply.
Voice signal enters sound circuit 303 from Mic (pick-up), be converted to audio signal output, amplify by output amplifier 302, hybrid modulation interface 304B in the driving data coding-decoding circuit, hybrid modulation interface 304B carries out dtmf code to communication data, power delivery switching circuit 301 is modulated to power supply with dtmf signal and voice signal, is superimposed on system core bus L_BUS.
Modulation superposed signal between system core bus L_BUS transmission and receiving element, its modulation signals that receives separates by mixing demodulation interface 304A demodulation, amplify through input amplifying circuit 305, input signal as sound circuit 303 and data coding-decoding circuit 304, data coding-decoding circuit 304 is decoded as communication data with the numerical data of input, and carry out exchanges data, the relevant functional circuit of drive controlling with cpu control bus; Under talking state, sound circuit amplifies the driving loud speaker with audio signal, realizes two-way intercommunication.
Fig. 4 is the circuit diagram of modulation interface preferred embodiment in the building visual intercom system of the present invention.
Now the preferred embodiment of modulation interface circuit among the present invention is described in detail in conjunction with Fig. 4.In the present embodiment, U1 and U2 adopt amplifier LM324, as input, output amplifier; U3 adopts the MC34018 chip of U.S. Motorola Inc. as sound circuit; U4 adopts the U.S. MT8880 of Mitel company chip as the data coding-decoding circuit; Q6 is a power supply chip 7805, as power circuit; T2 is power delivery switch transistor T IP42, and T1 is a triode 9013, as the power delivery switching circuit; + 12V is an external power supply; Mic+ links to each other with external pick-up with Mic-; Loud speaker links to each other with external loudspeaker.CPU_CTL is a cpu control bus, links to each other with microprocessor.VCC is+the 5V power supply that L_BUS is a system core bus.
The detailed connected mode of components and parts is as follows:
The power delivery switching circuit.Power supply+12V links to each other with R4 with D2 through D1.Power supply+12V links to each other with the collector electrode of T2.Power supply+12V links to each other with the base stage of T2 through R3.The emitter of T2 links to each other with the negative pole of D2.The emitter of T2 links to each other with system core bus L_BUS through resistance R 4.The base stage of T2 links to each other with the collector electrode of T1.The emitter of T1 is through resistance R 1 ground connection.The base stage of T1 links to each other with 1 end of chip U2A through resistance R 2 (passing through A-CTL).
Input amplifying circuit.3 ends of chip U1A link to each other with 1 end of U1A through resistance R 6.2 ends of U1A and 11 end ground connection, the 4 termination power VCC of U1A.3 ends of chip U1A link to each other with system core bus L_BUS with capacitor C 1 through resistance R 5.
Output amplifier.2 ends of chip U2A link to each other with 1 end of U2A through resistance R 7.3 ends of U2A and 11 end ground connection, the 4 termination power VCC of U2A.2 ends of U2A link to each other with 8 ends of chip U4 with R12 through resistance R 6, C2, C7.2 ends of U2A link to each other with 4 ends of chip U3 with R27 through resistance R 6, C2, C38.
Sound circuit.16 ends of chip U3 link to each other with power supply VCC.16 ends of U3 are through electrochemical capacitor C36 ground connection.20 ends of U3 are through electrochemical capacitor C35 ground connection.8 ends of U3 are through electrochemical capacitor C34 ground connection.6 ends of U3 are through electrochemical capacitor C33 ground connection.16 ends of U3 link to each other with 11 ends of U3 through resistance R 23.8 ends of U3 are through R25 ground connection.6 ends of U3 are through R24 ground connection.16 ends of U3 link to each other with 11 ends of U3 through electrochemical capacitor C32.16 ends of U3 link to each other with 25 ends of U3 through electrochemical capacitor C31.21 ends of U3 are through electrochemical capacitor C29 ground connection.21 ends of U3 link to each other with 17 ends of U3 through electrochemical capacitor C30.21 ends of U3 are through variable resistor VR1 and resistance R 22 ground connection.21 ends of U3 link to each other with the Mic+ of external pick-up.9 ends of U3 link to each other with the Mic-of external pick-up through capacitor C 28.Mic+ links to each other with Mic-through capacitor C 27, and Mic-is through resistance R 21 ground connection.24 ends of U3 link to each other with the control end of variable resistor VR1.15 ends of U3 link to each other with extraneous loud speaker anode Speaker through electrochemical capacitor C48.18 ends of U3 link to each other with Mute among the cpu control bus CPU_CTL.23 ends of U3 are through resistance R 34 ground connection, and 23 ends of U3 are through electrochemical capacitor C47 ground connection.1 end of U3 is through resistance R 32 ground connection.2 ends of U3 are through resistance R 33 ground connection.28 ends of U3 are through resistance R 31 ground connection.12 ends of U3 are through electrochemical capacitor C45 ground connection.26 ends of U3 are through resistance R 30 and capacitor C 44 ground connection.19 ends of U3 are through capacitor C 43 and capacitor C 44 ground connection.13 ends of U3 link to each other with 10 ends of U3 with capacitor C 42 through resistance R 29.3 ends of U3 link to each other with 10 ends of U3 through capacitor C 41.27 ends of U3 link to each other with 1 end of U1A by capacitor C 40.7 ends of U3 link to each other with 1 end of U1A with C39 by resistance R 28.5 ends of U3 link to each other with 4 ends of U3 with capacitor C 37 by resistance R 26.
The data coding-decoding circuit.1 end of chip U1A links to each other with 4 ends of U4 with resistance R 9 by capacitor C 6.2 ends of U4 link to each other through 1 end of resistance R 9 and capacitor C 6 and U1A.2 ends of U4 link to each other with 3 ends of U4 through resistance R 10.The 5 end ground connection of U4.6 ends of U4 are through resistance R 11 ground connection.7 ends of U4 link to each other with 6 ends of U4 through crystal oscillator Y1.8 ends of U4 are through capacitor C 5 ground connection.8 ends of U4 are through resistance R 13 ground connection.9 ends of U4 link to each other with WR among the cpu control bus CPU_CTL.10 ends of U4 link to each other with CS1 among the cpu control bus CPU_CTL.11 ends of U4 link to each other with RS0 among the cpu control bus CPU_CTL.12 ends of U4 link to each other with RD among the cpu control bus CPU_CTL.13 ends of U4 link to each other with INT0 among the cpu control bus CPU_CTL.14 ends of U4 link to each other with D0 among the cpu control bus CPU_CTL.15 ends of U4 link to each other with D1 among the cpu control bus CPU_CTL.16 ends of U4 link to each other with D2 among the cpu control bus CPU_CTL.17 ends of U4 link to each other with D3 among the cpu control bus CPU_CTL.18 ends of U4 link to each other with 19 ends of U4 through resistance R 8.19 ends of U4 link to each other with 20 ends of U4 through capacitor C 4.20 ends of U4 are through capacitor C 3 ground connection.20 ends of U4 link to each other with power supply VCC.
Power circuit.Power supply+12V links to each other with 1 end of chip Q6 through diode D11.System core bus L_BUS links to each other with 1 end of chip Q6 through diode D12.The 2 end ground connection of Q6.3 ends of Q6 are through electrochemical capacitor C15 ground connection.3 ends of Q6 are through capacitor C 16 ground connection.3 ends of Q6 are done to link to each other with power supply VCC.
Claims (10)
1. building visual intercom system, form by a plurality of control units, described a plurality of control unit comprises: centre management machine, doorway supervisor, floor distribution device, indoor set is characterized in that: be provided with the modulation interface circuit respectively in described a plurality of control units; Be connected by the wiring of 3 cores between described a plurality of control unit, comprising 2 core system core bus L_BUS and 1 core video line; Modulation interface circuit in the described control unit numerical data that control unit sends of will being correlated with is carried out double-tone multi-frequency coding, double-tone multi-frequency coding signal and voice signal is modulated to power supply together, is superimposed upon system core bus L_BUS; System core bus L_BUS sends and receives the modulation signal of stack, and the modulation interface circuit of described control unit is that voice drive relevant functional circuit with numerical data with its coherent signal demodulating and decoding that receives.
2. building visual intercom system according to claim 1 is characterized in that: described modulation interface circuit comprises: sound circuit will be converted to audio signal by the voice signal that pick-up enters; Output amplifier amplifies audio signal, and the hybrid modulation interface in the data coding-decoding circuit carries out double-tone multi-frequency coding with the communication data of input; The power delivery switching circuit is modulated to power supply with double-tone multi-frequency coding signal and voice signal, is superimposed on system core bus L_BUS and sends;
System core bus L_BUS sends and receives the modulation signal of stack; Mixing demodulation interface in the data coding-decoding circuit, the coherent signal that system core bus L_BUS is received is demodulated into voice signal and numerical data; Input amplifying circuit amplifies the signal of demodulation, sends to sound circuit and data coding-decoding circuit; The data coding-decoding circuit is decoded as communication data with the numerical data of importing, and with cpu control bus exchange, the relevant functional circuit of drive controlling; Sound circuit amplifies the driving loud speaker with audio signal.
3. building visual intercom system according to claim 2, it is characterized in that: the power delivery switching circuit in the described modulation interface circuit is made up of triode T1 and power delivery switch transistor T 2, and the emitter process resistance R 4 of power delivery switch transistor T 2 links to each other with system core bus L_BUS, the base stage of triode T1 links to each other through the output of resistance R 2 with output amplifier chip U2A.
4. building visual intercom system according to claim 2, it is characterized in that: the sound circuit in the described modulation interface circuit comprises chip U3,21 ends of U3 link to each other with the Mic+ of external pick-up, 9 ends of U3 through capacitor C 28 link to each other with the Mic-of external pick-up, 15 ends of U3 through electrochemical capacitor C48 link to each other with the external loudspeaker anode, 18 ends of U3 link to each other with Mute among the cpu control bus CPU_CTL, 27 ends of U3 pass through capacitor C 40 and link to each other with 1 end of described input amplifier chip U1A.
5. building visual intercom system according to claim 2, it is characterized in that: described data coding-decoding circuit comprises chip U4, and 2 ends of U4 link to each other with 1 end of capacitor C 6 with described input amplifier chip U1A through resistance R 9,9 ends of U4 link to each other with WR among the cpu control bus CPU_CTL, 10 ends of U4 link to each other with CS1 among the cpu control bus CPU_CTL, 11 ends of U4 link to each other with RSO among the cpu control bus CPU_CTL, 12 ends of U4 link to each other with RD among the cpu control bus CPU_CTL, 13 ends of U4 link to each other with INTO among the cpu control bus CPU_CTL, 14 ends of U4 link to each other with D0 among the cpu control bus CPU_CTL, 15 ends of U4 link to each other with D1 among the cpu control bus CPU_CTL, 16 ends of U4 link to each other with D2 among the cpu control bus CPU_CTL, 17 ends of U4 link to each other with D3 among the cpu control bus CPU_CTL, 20 ends of U4 link to each other with power supply VCC.
6. building visual intercom system according to claim 1 and 2 is characterized in that: described modulation interface circuit also comprises a power circuit, and this power circuit comprises chip Q6, and 1 end of chip Q6 links to each other with system core bus L_BUS through diode D12.
7. building visual intercom system according to claim 1 and 2 is characterized in that:
Centralized administrator needs the Lou Hao of resident family that calls out and chamber number by centre management machine input, and the modulation interface circuit of centre management machine number converts the Lou Hao of resident family and chamber to the dtmf code mode, and is modulated to system core bus L_BUS and sends call request; The modulation interface circuit automatic decoding of doorway supervisor runs into and calls out the coded address when identical with this machine address, automatically switches to the floor call state; To resident family's indoor set, the modulation interface circuit automatic decoding of indoor set runs into and calls out the coded address when identical with this machine address the floor distribution device with data signal distribution, automatic-answering back device, and foundation is shaken hands, and produces the ring back tone prompting; After resident family's button is replied, promptly set up talking path.
8. building visual intercom system according to claim 1 and 2 is characterized in that:
The visitor is by doorway supervisor input resident family chamber number, and the doorway supervisor carries out dtmf code by the modulation interface circuit, automatically switches to the floor call state, sends resident family's call request by system core bus L_BUS; To resident family's indoor set, indoor set is by the automatic decoding of modulation interface circuit with data signal distribution for the floor distribution device, run into to call out the coded address when identical with this machine address, and automatic-answering back device, foundation is shaken hands, and produces the ring back tone prompting; After resident family's button is replied, promptly set up talking path.
9. building visual intercom system according to claim 1 and 2, it is characterized in that: resident family is by the button on the indoor set, the conversation of request center, the modulation interface circuit carries out dtmf code to digital data, and modulation enters system core bus L_BUS dispatching centre call request; The floor distribution device carries out the signal amplification and is transported to the doorway supervisor; The doorway supervisor judges that the call request type is the center call request, judge simultaneously whether the center talking path is in idle condition: A, the center talking path is in idle condition, the doorway supervisor is at once by system core bus L_BUS dispatching centre call request, the centre management machine passes through the modulation interface circuit decoding, automatic-answering back device, and produce the ring back tone prompting, after centre management person's button is replied, promptly set up talking path; B, the center talking path is in busy condition, and the doorway supervisor postbacks the busy order of indoor set bus, and indoor set engaged line indicator light is bright.
10. building visual intercom system according to claim 1 and 2, it is characterized in that: resident family is by the button on the indoor set, the request doorway monitors, indoor set carries out dtmf code by the modulation interface circuit, send the doorway monitor request by system core bus L_BUS, the floor distribution device carries out the signal amplification and is transported to the doorway supervisor; The doorway supervisor judges that the call request type is the doorway monitor request, acknowledges requests at once, and open camera, resident family just can monitor the doorway.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100284038A CN100502499C (en) | 2005-08-03 | 2005-08-03 | Storied building visible intercommunication system |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2005100284038A CN100502499C (en) | 2005-08-03 | 2005-08-03 | Storied building visible intercommunication system |
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| CN1909652A CN1909652A (en) | 2007-02-07 |
| CN100502499C true CN100502499C (en) | 2009-06-17 |
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| CNB2005100284038A Expired - Fee Related CN100502499C (en) | 2005-08-03 | 2005-08-03 | Storied building visible intercommunication system |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101808232B (en) * | 2009-02-17 | 2012-01-18 | 厦门Abb振威电器设备有限公司 | Control system of building talkback indoor device |
| CN101917206B (en) * | 2010-07-13 | 2013-06-05 | 深圳市力同亚太科技有限公司 | Integrated talkback chip and integrated talkback system with dual tone multiple frequency coding and decoding function |
| CN102568167A (en) * | 2010-12-28 | 2012-07-11 | 叶志锋 | Video networking-based intercom, monitoring and alarm integrated system |
| CN103533289A (en) * | 2013-08-13 | 2014-01-22 | 深圳市科瑞电子有限公司 | Splicing combination method for upgrading non-visual talkback terminal to visual talkback terminal |
| CN103458227B (en) * | 2013-08-14 | 2014-05-14 | 厦门狄耐克电子科技有限公司 | Two-wire system transmission building visible walky-talky system |
| CN103475860A (en) * | 2013-08-28 | 2013-12-25 | 陈柲安 | Visual intercom system |
| CN104883534A (en) * | 2014-02-27 | 2015-09-02 | 硕颉科技股份有限公司 | Security monitoring system |
| CN106506887B (en) * | 2016-09-30 | 2019-11-05 | 深圳市泛海三江科技发展有限公司 | Building conversational system and method |
| CN109660749B (en) * | 2018-12-22 | 2021-04-09 | 成都毅创空间科技有限公司 | Entrance guard communication device |
| CN113949418B (en) * | 2021-10-18 | 2023-06-09 | 广州桥通电子科技有限公司 | Compatible access system for elevator simulation five-party intercom and radio frequency wireless intercom |
| CN115345528A (en) * | 2022-10-18 | 2022-11-15 | 烟台东方智能技术有限公司 | Intelligent data management system for intelligent building |
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