CN202979095U - Two-bus type fire-fighting telephone system - Google Patents
Two-bus type fire-fighting telephone system Download PDFInfo
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- CN202979095U CN202979095U CN 201220408491 CN201220408491U CN202979095U CN 202979095 U CN202979095 U CN 202979095U CN 201220408491 CN201220408491 CN 201220408491 CN 201220408491 U CN201220408491 U CN 201220408491U CN 202979095 U CN202979095 U CN 202979095U
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Abstract
The utility model relates to the field of a fire-fighting telephone, and provides a two-bus type fire-fighting telephone system. According to the two-bus type fire-fighting telephone system, a fire-fighting telephone communication bus is powered through the communication bus power supply circuit of a fire-fighting telephone host, high impedance is provided for an audio signal, and the audio signal of the communication bus is coupled to a data signal through a coupling circuit of the fire-fighting telephone host and the extension set coupling circuit of a fire-fighting telephone extension set. Thereby, according to the two-bus type fire-fighting telephone system provided in the utility model, the transmission of a data signal and an audio signal is achieved through two buses, the problems in the fire-fighting telephone system comprising a fire-fighting telephone host and a fire-fighting telephone extension set in the prior art that wiring is much and complex, construction is inconvenient, a voice signal is vulnerable to interference of a communication bus control signal, etc.
Description
Technical field
The utility model relates to the fire telephone field, relates in particular to a kind of double bus formula fire telephone system.
Background technology
Communicating by letter between the main frame of fire telephone system and extension set is divided into digital communication, voice communication.By digital communication, the fire telephone main frame can be completed the patrolling and examining of fire telephone extension set, and by voice communication, can realize voice call between fire telephone main frame and extension set.
The fire telephone system that exists at present generally can be divided into multibus formula, four bus types according to the connection mode between main frame and extension set.
Wherein, comparatively commonly used in multibus mode fire telephone system in early days, in this type of fire telephone system, the fire telephone main frame connects a fire telephone extension set by two buses, carries out the transmission of digital communication, voice signal when can power for extension set.Therefore but often connect a part of machine, just need pair of telephone lines to be connected to the fire telephone main frame, exist wiring various, complicated, thereby due to the factor of cost and volume, extension set quantity is had the larger shortcomings such as restriction simultaneously.
Various, complicated for solving the wiring that the multibus mode exists, thus due to the factor of cost and volume, extension set quantity there are the larger problems such as restriction simultaneously, the fire telephone system of four bus types is provided in prior art.The mode of connection of four bus type fire telephone systems is to realize that by two power lines the fire telephone main frame is the power supply of fire telephone extension set, carries out digital communication between fire telephone main frame and extension set simultaneously, realizes the transmission of the voice signal between fire telephone main frame and extension set by two voice lines.Be connected by four lines due between fire telephone main frame and fire telephone extension set, very inconvenient when therefore constructing, and also voice lines is also easily introduced the interference of bus control signal.
In sum, there are the problems such as interference that wiring is various, complicated, construction is inconvenient, voice lines is subject to bus control signal in the fire telephone system that fire telephone main frame of the prior art, fire telephone extension set consist of.
The utility model content
The purpose of this utility model is to provide a kind of double bus formula fire telephone system, be intended to solve the fire telephone system of fire telephone main frame of the prior art, fire telephone extension set formation, have the problems such as interference that wiring is various, complicated, construction is inconvenient, voice lines is subject to the communication bus control signal.
The utility model is achieved through the following technical solutions:
A kind of double bus formula fire telephone system comprises fire telephone main frame coupling circuit and fire telephone extension set coupling circuit;
Described fire telephone main frame coupling circuit comprises:
The communication bus power supply circuits of output terminated communications bus;
Host phone handle circuit for the power supply of fire telephone main frame handle and transmission of audio signal;
Realize the main frame ringing circuit of ring;
The main frame coupling circuit that the bell signal of the audio signal of communication bus and digital signal, the audio signal of described host phone handle circuit transmission, the transmission of described main frame ringing circuit is coupled and transmits, the first communication termination described host phone handle circuit of described main frame coupling circuit and the communication ends of described main frame ringing circuit, the second communication terminated communications bus of described main frame coupling circuit;
Described fire telephone extension set coupling circuit comprises:
Extension set audio signal gating and the power supply circuits of gating extension set audio signal and power supply when carrying out audio signal transmission according to extension set;
Detect the extension telephone handle testing circuit of extension telephone handle off-hook and transmission of audio signal;
Audio signal/the digital signal of described extension telephone handle testing circuit and described communication bus is carried out the extension set coupling circuit of coupled transfer, the first communication ends, second communication termination described extension set audio signal gating and power supply circuits and the telephone handle of the first described extension telephone handle of communication termination testing circuit of described extension set coupling circuit, the second communication terminated communications bus of extension telephone handle testing circuit.
The double bus formula fire telephone system that the utility model provides, can have for the fire telephone communication bus power supply of high impedance to audio signal by the bus-powered circuit of fire telephone main-machine communication, by the extension set coupling circuit of main frame coupling circuit and fire telephone extension set, audio signal and the digital signal of communication bus can be coupled.Therefore, the double bus formula fire telephone system that the utility model provides, can adopt two buses to realize the transmission of digital signal and audio signal, thereby solve the fire telephone system of fire telephone main frame of the prior art, fire telephone extension set formation, have the problems such as interference that wiring is various, complicated, construction is inconvenient, voice lines is subject to the communication bus control signal.
Description of drawings
The theory diagram of Fig. 1 provides for the utility model embodiment double bus formula fire telephone system;
The circuit theory diagrams of the fire telephone main frame that Fig. 2 provides for the utility model embodiment;
The circuit theory diagrams of the fire telephone extension set that Fig. 3 provides for the utility model embodiment.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and the specific embodiments, the utility model is described in further detail.Should be appreciated that specific embodiment described herein only is used for explaining the utility model, be not limited to the utility model.
With reference to Fig. 1, the theory diagram of the utility model embodiment provides double bus formula fire telephone system.
A kind of double bus formula fire telephone system comprises fire telephone main frame coupling circuit and fire telephone extension set coupling circuit.
Described fire telephone main frame coupling circuit comprises: the communication bus power supply circuits of output terminated communications bus; Host phone handle circuit for the power supply of fire telephone main frame handle and transmission of audio signal; Realize the main frame ringing circuit of ring; The main frame coupling circuit that the bell signal of the audio signal of communication bus and digital signal, the audio signal of described host phone handle circuit transmission, the transmission of described main frame ringing circuit is coupled and transmits, the first communication termination described host phone handle circuit of described main frame coupling circuit and the communication ends of described main frame ringing circuit, the second communication terminated communications bus of described main frame coupling circuit.
Described fire telephone extension set coupling circuit comprises: extension set audio signal gating and the power supply circuits of gating extension set audio signal and power supply when carrying out audio signal transmission according to extension set; Detect the extension telephone handle testing circuit of extension telephone handle off-hook and transmission of audio signal; Audio signal/the digital signal of described extension telephone handle testing circuit and described communication bus is carried out the extension set coupling circuit of coupled transfer, the first communication ends, second communication termination described extension set audio signal gating and the power supply circuits of the first described extension telephone handle of communication termination testing circuit of described extension set coupling circuit and telephone handle (not indicating), the second communication terminated communications bus of extension telephone handle testing circuit.
Below, only the key technology scheme of the utility model embodiment is made associated description, simultaneously, in the present embodiment, corresponding port label is used in the description of relevant single-chip microcomputer in the accompanying drawings.
With reference to Fig. 2, the circuit theory diagrams of the fire telephone main frame that the utility model embodiment provides.
Described communication bus power supply circuits 100 comprise resistance R 13, resistance R 14, resistance R 16, capacitor C 10, capacitor C 12 triode Q7, triode Q9, triode Q14, diode D9;
described capacitor C 10, capacitor C 12 is connected in series in+24VA power supply and ground between, described resistance R 13, resistance R 14 is connected in+emitter of 24VA power supply and described triode Q9 between, the emitter of described triode Q7 connects+the 24VA power supply, collector electrode connects described capacitor C 10, the common port of capacitor C 12, collector electrode is simultaneously by resistance R 38 ground connection, emitter connects the emitter of described triode Q9 by resistance R 16, the base stage of triode Q9 connects the emitter of described triode Q14, the base stage of triode Q14 connects the collector electrode of described triode Q7, described triode Q9, the collector electrode of triode Q14 all connects the anode of described diode D9, the negative electrode of described diode D9 is as the output terminated communications bus of described communication bus power supply circuits (100).
Described main frame coupling circuit 400 comprises resistance R 122, resistance R 114, resistance R 109, capacitor C 45, capacitor C 23, capacitor C 51, diode D24, transformer TR1;
the base stage of described triode Q40 meets the control end M_C of single-chip microcomputer by described resistance R 122, grounded emitter, collector electrode connects the second end of the primary coil of described transformer TR1 by described capacitor C 51, collector electrode also connects the first end of described capacitor C 45 by resistance R 114, described diode D24 is parallel to the primary coil of described transformer TR1, the second end of the second described capacitor C 45 of termination of the primary coil of described transformer TR1, the second end ground connection of the secondary coil of described transformer TR1, the second end of the first described capacitor C 23 of termination, described resistance is connected between the first end of the second end of described capacitor C 45 and described capacitor C 23, the first end of described capacitor C 23 is as the first communication termination described host phone handle circuit 200 of described main frame coupling circuit 400 and the communication ends of described main frame ringing circuit 300, the first end of described capacitor C 45 is as the second communication terminated communications bus of described main frame coupling circuit 400.
With reference to Fig. 3, the have a try circuit theory diagrams of the fire telephone extension set that example provides of the utility model.
Described extension set coupling circuit 600 comprises resistance R 44, resistance R 46, resistance R 21, capacitor C 10, triode Q8, triode Q16, diode D16;
the base stage of described triode Q16 meets the control end CON of single-chip microcomputer by described resistance R 44, grounded emitter, collector electrode connects the base stage of described triode Q8 by described resistance R 46, the emitter of described triode Q8 is by resistance R 21 in parallel, capacitor C 10 connects the negative electrode of described diode D16, the anode of described diode D16 is as the first communication ends of the first described extension telephone handle of communication termination testing circuit 500 of described extension set coupling circuit 600, and the second communication terminated communications bus by described extension telephone handle testing circuit 500, the collector electrode of described triode Q8 is as second communication termination described extension set audio signal gating and the power supply circuits 700 of described extension set coupling circuit 600, telephone handle (not indicating).
Below in conjunction with Fig. 1, Fig. 2, Fig. 3, the principle of the double bus formula fire telephone system that the utility model embodiment is provided is described further.
The output of bus-powered circuit 100 is that the negative electrode of diode D9 is connected the letter bus, and Main Function is for the power supply of communication bus digital communication coupling circuit, simultaneously audio signal is had high impedance, to prevent the interference of audio signal.In this bus-powered circuit 100, capacitor C 10 is connected in parallel between the base stage and emitter of the Darlington triode that triode Q9, triode Q14 form, capacitor C 12 connects between the base stage and ground of Darlington triodes, with the electric current amplification characteristic of triode and the logical high frequency of electric capacity, the good combination of characteristic of resistance low frequency.Can have higher impedance to certain frequency by the parameter of regulating triode and electric capacity.Therefore, this circuit also can be used as the power supply low pass filter with metering function, and general+24VA power supply carries out exporting communication bus to after low pass is processed.
The PHONE of host phone handle circuit 200 terminates to the telephone handle (indicate) of main frame, for host phone handle (indicating) is powered and transmits audio signal between host phone handle and fire telephone main frame.The audio signal of host phone handle (not indicating) is the first end of capacitor C 23 by the first communication ends of the communication termination main frame coupling circuit 400 of host phone handle circuit 200.The first communication ends of the communication termination main frame coupling circuit 400 of main frame ringing circuit 300 is the first end of capacitor C 23.The second communication end that communication bus connects main frame coupling circuit 400 is the first end (being the L2 end) of capacitor C 45.The control end M_C of single-chip microcomputer (indicate) by controlling triode Q40 conducting and close, thereby control the audio signal of communication bus and digital signal, the audio signal of host phone handle circuit 200 transmission, the bell signal that main frame ringing circuit 300 transmits is coupled.
The first communication ends of extension set coupling circuit 600 is the first communication ends of the anode extension telephone handle testing circuit 500 of diode D16, and the second communication terminated communications bus by described extension telephone handle testing circuit 500, the second communication end is collector electrode extension audio signal gating and power supply circuits 700 and the telephone handle (not indicating) of triode Q8, and the base stage of triode Q16 meets the control end CON of single-chip microcomputer (not indicating) by resistance R 44.
The resistance R 8 of extension set audio signal gating and power supply circuits 700 meets the control end PHONE_PC of single-chip microcomputer.
Control end CON, the PHONE_PC of single-chip microcomputer (not indicating) is respectively by controlling the gating of talking handle or extension set and outside two voice communication buses, the control end CON of single-chip microcomputer (indicate) controls whether conducting of triode Q16 and triode Q8, when the control end CON of single-chip microcomputer is high level, triode Q16, triode Q8 are in the conducting magnifying state, and the audio signal of holding at the V+ of extension telephone handle testing circuit 500 is coupled to communication bus by extension set coupling circuit 600.
In sum, the double bus formula fire telephone system that the utility model provides, can have for the fire telephone communication bus power supply of high impedance to audio signal by the bus-powered circuit 100 of fire telephone main-machine communication, by the extension set coupling circuit 600 of main frame coupling circuit 400 and fire telephone extension set, audio signal and the digital signal of communication bus can be coupled.Therefore, the double bus formula fire telephone system that the utility model provides, can adopt two buses to realize the transmission of digital signal and audio signal, thereby solve the fire telephone system of fire telephone main frame of the prior art, fire telephone extension set formation, have the problems such as interference that wiring is various, complicated, construction is inconvenient, voice lines is subject to the communication bus control signal.
The above is preferred embodiment of the present utility model; it describes comparatively concrete and detailed; be not limited to the utility model, all any modifications of doing within principle of the present utility model, be equal to and replace and improvement etc., within all should being included in protection range of the present utility model.
Claims (4)
1. a double bus formula fire telephone system, is characterized in that, comprises fire telephone main frame coupling circuit and fire telephone extension set coupling circuit;
Described fire telephone main frame coupling circuit comprises:
The communication bus power supply circuits (100) of output terminated communications bus;
Host phone handle circuit (200) for the power supply of fire telephone main frame handle and transmission of audio signal;
Realize the main frame ringing circuit (300) of ring;
The main frame coupling circuit (400) that the bell signal of the audio signal of the audio signal of communication bus and digital signal, described host phone handle circuit (200) transmission, described main frame ringing circuit (300) transmission is coupled and transmits, the first communication termination described host phone handle circuit (200) of described main frame coupling circuit (400) and the communication ends of described main frame ringing circuit (300), the second communication terminated communications bus of described main frame coupling circuit (400);
Described fire telephone extension set coupling circuit comprises:
The extension set audio signal gating of gating extension set audio signal and power supply when carrying out audio signal transmission according to extension set and power supply circuits (700);
Detect the extension telephone handle testing circuit (500) of extension telephone handle off-hook and transmission of audio signal;
Described extension telephone handle testing circuit (500) and the audio signal/digital signal of described communication bus are carried out the extension set coupling circuit (600) of coupled transfer, the first communication ends, second communication termination described extension set audio signal gating and power supply circuits (700) and the telephone handle of the first communication termination described extension telephone handle testing circuit (500) of described extension set coupling circuit (600), the second communication terminated communications bus of extension telephone handle testing circuit (500).
2. double bus formula fire telephone as claimed in claim 1 system, it is characterized in that, described communication bus power supply circuits (100) comprise resistance R 13, resistance R 14, resistance R 16, capacitor C 10, capacitor C 12 triode Q7, triode Q9, triode Q14, diode D9;
described capacitor C 10, capacitor C 12 is connected in series in+24VA power supply and ground between, described resistance R 13, resistance R 14 is connected in+emitter of 24VA power supply and described triode Q9 between, the emitter of described triode Q7 connects+the 24VA power supply, collector electrode connects described capacitor C 10, the common port of capacitor C 12, collector electrode is simultaneously by resistance R 38 ground connection, emitter connects the emitter of described triode Q9 by resistance R 16, the base stage of triode Q9 connects the emitter of described triode Q14, the base stage of triode Q14 connects the collector electrode of described triode Q7, described triode Q9, the collector electrode of triode Q14 all connects the anode of described diode D9, the negative electrode of described diode D9 is as the output terminated communications bus of described communication bus power supply circuits (100).
3. double bus formula fire telephone as claimed in claim 1 system, is characterized in that, described main frame coupling circuit (400) comprises resistance R 122, resistance R 114, resistance R 109, capacitor C 45, capacitor C 23, capacitor C 51, diode D24, transformer TR1;
the base stage of described triode Q40 meets the control end M_C of single-chip microcomputer by described resistance R 122, grounded emitter, collector electrode connects the second end of the primary coil of described transformer TR1 by described capacitor C 51, collector electrode also connects the first end of described capacitor C 45 by resistance R 114, described diode D24 is parallel to the primary coil of described transformer TR1, the second end of the second described capacitor C 45 of termination of the primary coil of described transformer TR1, the second end ground connection of the secondary coil of described transformer TR1, the second end of the first described capacitor C 23 of termination, described resistance is connected between the first end of the second end of described capacitor C 45 and described capacitor C 23, the first end of described capacitor C 23 is as the first communication termination described host phone handle circuit (200) of described main frame coupling circuit (400) and the communication ends of described main frame ringing circuit (300), the first end of described capacitor C 45 is as the second communication terminated communications bus of described main frame coupling circuit (400).
4. double bus formula fire telephone as claimed in claim 1 system, is characterized in that, described extension set coupling circuit (600) comprises resistance R 44, resistance R 46, resistance R 21, capacitor C 10, triode Q8, triode Q16, diode D16;
the base stage of described triode Q16 meets the control end CON of single-chip microcomputer by described resistance R 44, grounded emitter, collector electrode connects the base stage of described triode Q8 by described resistance R 46, the emitter of described triode Q8 is by resistance R 21 in parallel, capacitor C 10 connects the negative electrode of described diode D16, the anode of described diode D16 is as the first communication ends of the first communication termination described extension telephone handle testing circuit (500) of described extension set coupling circuit (600), and the second communication terminated communications bus by described extension telephone handle testing circuit (500), the collector electrode of described triode Q8 is as second communication termination described extension set audio signal gating and the power supply circuits (700) of described extension set coupling circuit (600), telephone handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220408491 CN202979095U (en) | 2012-08-17 | 2012-08-17 | Two-bus type fire-fighting telephone system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220408491 CN202979095U (en) | 2012-08-17 | 2012-08-17 | Two-bus type fire-fighting telephone system |
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| CN202979095U true CN202979095U (en) | 2013-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220408491 Expired - Lifetime CN202979095U (en) | 2012-08-17 | 2012-08-17 | Two-bus type fire-fighting telephone system |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103501396A (en) * | 2013-10-29 | 2014-01-08 | 山东亚华电子有限公司 | Medical communication calling device mainframe |
| CN105245736A (en) * | 2015-09-29 | 2016-01-13 | 深圳市泛海三江电子有限公司 | Bus type fire-fighting communication system |
| CN107295207A (en) * | 2017-06-27 | 2017-10-24 | 四川赛科安全技术有限公司 | The method for realizing data signal and audio signal simultaneous transmission in fire telephone system |
| CN108512734A (en) * | 2018-06-01 | 2018-09-07 | 山东众海智能科技有限公司 | A kind of bus communication circuitry and multi-thread control panel |
| CN110225175A (en) * | 2019-06-06 | 2019-09-10 | 四川赛科安全技术有限公司 | A method of realizing that signal transmits between fire telephone extension set and host |
| CN111432088A (en) * | 2020-05-25 | 2020-07-17 | 深圳市赋安安全系统有限公司 | Fire-fighting telephone communication method and system |
| TWI784425B (en) * | 2021-02-26 | 2022-11-21 | 中興保全科技股份有限公司 | Non-extension type remote call notification device |
-
2012
- 2012-08-17 CN CN 201220408491 patent/CN202979095U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103501396A (en) * | 2013-10-29 | 2014-01-08 | 山东亚华电子有限公司 | Medical communication calling device mainframe |
| CN103501396B (en) * | 2013-10-29 | 2015-12-02 | 山东亚华电子有限公司 | Medical communication calling equipment main frame |
| CN105245736A (en) * | 2015-09-29 | 2016-01-13 | 深圳市泛海三江电子有限公司 | Bus type fire-fighting communication system |
| CN107295207A (en) * | 2017-06-27 | 2017-10-24 | 四川赛科安全技术有限公司 | The method for realizing data signal and audio signal simultaneous transmission in fire telephone system |
| CN107295207B (en) * | 2017-06-27 | 2019-12-10 | 四川赛科安全技术有限公司 | Method for realizing simultaneous transmission of digital signal and audio signal in fire-fighting telephone system |
| CN108512734A (en) * | 2018-06-01 | 2018-09-07 | 山东众海智能科技有限公司 | A kind of bus communication circuitry and multi-thread control panel |
| CN108512734B (en) * | 2018-06-01 | 2023-12-12 | 山东众海智能科技有限公司 | Bus communication circuit and multi-wire control panel |
| CN110225175A (en) * | 2019-06-06 | 2019-09-10 | 四川赛科安全技术有限公司 | A method of realizing that signal transmits between fire telephone extension set and host |
| CN111432088A (en) * | 2020-05-25 | 2020-07-17 | 深圳市赋安安全系统有限公司 | Fire-fighting telephone communication method and system |
| TWI784425B (en) * | 2021-02-26 | 2022-11-21 | 中興保全科技股份有限公司 | Non-extension type remote call notification device |
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Granted publication date: 20130605 |