CN107465840A - Digital SPC exchange - Google Patents
Digital SPC exchange Download PDFInfo
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- CN107465840A CN107465840A CN201710683396.8A CN201710683396A CN107465840A CN 107465840 A CN107465840 A CN 107465840A CN 201710683396 A CN201710683396 A CN 201710683396A CN 107465840 A CN107465840 A CN 107465840A
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/005—Interface circuits for subscriber lines
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/02—Calling substations, e.g. by ringing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
- H04M3/42187—Lines and connections with preferential service
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/18—Electrical details
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/18—Electrical details
- H04Q1/30—Signalling arrangements; Manipulation of signalling currents
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
- H04Q3/54—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker in which the logic circuitry controlling the exchange is centralised
- H04Q3/545—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker in which the logic circuitry controlling the exchange is centralised using a stored programme
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Emergency Protection Circuit Devices (AREA)
- Telephonic Communication Services (AREA)
Abstract
The present invention discloses a kind of digital SPC exchange, including the interchanger body with serial communication port circuit and some domestic consumer's port circuits, and domestic consumer's port circuit is used to be connected with common phone or emergency telephone；Emergency telephone is used to export emergency start signal and emergency notice content information；Serial communication port circuit is used to connect the serial data communication between computer and interchanger body；Interchanger body is used to, when receiving the emergency start signal of computer/emergency telephone output, export jingle bell control signal, and when recognizing common phone off-hook, the emergency notice content information that emergency telephone exports is sent to common phone；Domestic consumer's port circuit is used for when receiving jingle bell control signal, controls common phone jingle bell, and, the emergency start signal of emergency telephone output and emergency notice content information are sent to interchanger body.This digital SPC exchange can realize an one-key emergent call function, easy to operate.
Description
Technical field
The present invention relates to switch technology field, more particularly to a kind of digital SPC exchange.
Background technology
Digital SPC exchange is widely used in the big occasion of the flows of the people such as hotel, Saunas, hospital.
Existing digital SPC exchange, when needing urgent call, only coordinate urgent fire-fighting system or expansion in addition
System for electrical teaching, which is controlled, to be realized, troublesome in poeration.
The content of the invention
The main object of the present invention is to provide a kind of digital SPC exchange, it is intended to facilitates the digital SPC exchange to realize
The operation of emergency call function.
To achieve the above object, digital SPC exchange proposed by the present invention includes interchanger body, the interchanger sheet
Body has serial communication port circuit and some domestic consumer's port circuits, and the serial communication port circuit is used for and computer
Connection, domestic consumer's port circuit are used to be connected with common phone or emergency telephone；Wherein, the emergency call
Machine, for exporting emergency start signal and emergency notice content information；The serial communication port circuit, by connect it is described based on
Serial data communication between calculation machine and the interchanger body；The interchanger body, for receive the computer/
During the emergency start signal of emergency telephone output, jingle bell control signal is exported, and, recognizing the common phone off-hook
When, the emergency notice content information that the emergency telephone exports is sent to the common phone；The domestic consumer port
Circuit, for when receiving the jingle bell control signal, controlling the common phone jingle bell, and, by the emergency call
The emergency start signal of machine output and anxious content of announcement information are sent to the interchanger body.
Preferably, the serial communication port circuit includes the first over-voltage over-current protection unit and serial communication subelement；
First input end, the second output end, the 3rd input and the 4th output end of the first over-voltage over-current protection unit are and institute
State computer connection；The first of first output end of the first over-voltage over-current protection unit and the serial communication subelement is defeated
Enter end connection, the second output end of the second input of the first over-voltage over-current protection unit and the serial communication subelement
Connection, the 3rd output end of the first over-voltage over-current protection unit connect with the 3rd input of the serial communication subelement
Connect, the 4th input of the first over-voltage over-current protection unit is connected with the 4th output end of the serial communication subelement；
The first output end, the second input, the 3rd output end and the 4th input of the serial communication subelement with interchanger sheet
Control chip connection in body.
Preferably, the first over-voltage over-current protection unit includes ten transient voltage suppressor diodes and four resistance；
The first of the first end of first transient voltage suppressor diode, the first end of the second transient voltage suppressor diode and first resistor
End interconnection, its connecting node are the first input end of the first over-voltage over-current protection unit；First transient voltage suppresses
Second end of diode and the first end of the 3rd transient voltage suppressor diode are grounded, and the 3rd transient voltage suppresses two poles
Second end of pipe is connected with the second end of the first resistor, and its connecting node is the of the first over-voltage over-current protection unit
One output end；Second end of second transient voltage suppressor diode, the first end of second resistance and the suppression of the 4th transient voltage
The first end interconnection of diode processed, its connecting node are the second output end of the first over-voltage over-current protection unit；Described
Second end of four transient voltage suppressor diodes and the first end of the 5th transient voltage suppressor diode are grounded, the 5th wink
Second end of state voltage suppression diode is connected with the second end of the second resistance, and its connecting node is crossed for described first and pressed through
Flow the second input of protection location；The first end of 6th transient voltage suppressor diode, the 7th transient voltage suppressor diode
First end and 3rd resistor first end interconnection, its connecting node for the first over-voltage over-current protection unit the 3rd input
End；Second end of the 6th transient voltage suppressor diode and the first end of the 8th transient voltage suppressor diode are grounded,
Second end of the 8th transient voltage suppressor diode is connected with the second end of the 3rd resistor, and its connecting node is described
3rd output end of the first over-voltage over-current protection unit；Second end of the 7th transient voltage suppressor diode, the 4th resistance
First end and the 9th transient voltage suppressor diode first end interconnection, its connecting node is first over-voltage over-current protection
4th output end of unit；Second end of the 9th transient voltage suppressor diode and the tenth transient voltage suppressor diode
First end is grounded, and the second end of the tenth transient voltage suppressor diode is connected with the second end of the 4th resistance, its
Connecting node is the 4th input of the first over-voltage over-current protection unit.
Preferably, the serial communication subelement includes communication chip, the first electric capacity, the second electric capacity, the 3rd electric capacity, the 4th
Electric capacity and the first power supply；The supply pin of the communication chip is connected with first power supply, and the grounding leg of the communication chip connects
Ground；First input pin of the communication chip is the first input end of the serial communication subelement, the of the communication chip
One output pin is the first output end of the serial communication subelement；Second input pin of the communication chip is described serial logical
Believe the second input of subelement, the second output pin of the communication chip exports for the second of the serial communication subelement
End；3rd input pin of the communication chip is the 3rd input of the serial communication subelement, the of the communication chip
Three output pins are the 3rd output end of the serial communication subelement；4th input pin of the communication chip is described serial logical
Believe the 4th input of subelement, the 4th output pin of the communication chip exports for the 4th of the serial communication subelement
End；First positive supply pin of the communication chip is connected with the first end of first electric capacity, and the first of the communication chip is negative
Supply pin is connected with the second end of first electric capacity；The of second positive supply pin of the communication chip and second electric capacity
One end is connected, and the second negative supply pin of the communication chip is connected with the second end of second electric capacity, the communication chip
3rd positive supply pin is connected with the first end of the 3rd electric capacity, the 3rd negative supply pin of the communication chip and the described 4th electricity
The first end connection of appearance, the second end of the 3rd electric capacity is connected with the second end of the 4th electric capacity.
Preferably, domestic consumer's port circuit includes power supply offer unit, jingle bell control unit, voice transfer unit
And the second over-voltage over-current protection unit；The power supply provides the output end of unit, the input of the voice transfer unit and institute
The secondary signal end interconnection of jingle bell control unit is stated, the power supply provides the input of unit and second over-voltage over-current protection
The secondary signal end connection of unit, the power supply provide the feedback end of unit, the output end of the voice transfer unit and described
4th signal end of jingle bell control unit is connected with the control chip in the interchanger body；The jingle bell control unit
3rd signal end connects AC power, the first signal end of the jingle bell control unit and the second over-voltage over-current protection unit
The connection of the 4th signal end, the first signal end of the second over-voltage over-current protection unit and secondary signal end are used to connecting described
Common phone or the emergency telephone.
Preferably, the second over-voltage over-current protection unit includes the tenth transient voltage suppression diode, the 12nd wink
State voltage suppression diode, the 13rd transient voltage suppressor diode, the 5th resistance, the 6th resistance and the first protection chip；Institute
State the supply pin connection second source of the first protection chip, the grounding leg ground connection of the first protection chip, first protection
The output pin of chip, the tenth transient voltage suppress the second end of diode, the 12nd transient voltage suppresses two poles
Second end of the first end of pipe and the 5th resistance interconnects, and its connecting node is the of the second over-voltage over-current protection unit
Binary signal end, the second end of the 12nd transient voltage suppressor diode, the 13rd transient voltage suppressor diode
Second end of first end and the 6th resistance interconnects, and its connecting node is believed for the 4th of the second over-voltage over-current protection unit
Number end；The first end of the tenth transient voltage suppression diode and the second of the 13rd transient voltage suppressor diode
End is grounded, and the first end of the 5th resistance is the first signal end of the second over-voltage over-current protection unit, and the described 6th
The first end of resistance is the secondary signal end of the second over-voltage over-current protection unit.
Preferably, the jingle bell control unit includes the 7th resistance, the 8th resistance, the first transistor, the 14th diode
And relay；The first end of 7th resistance is the 4th signal end of the jingle bell control unit, the of the 7th resistance
Two ends are connected with the controlled end of the first transistor, the output head grounding of the first transistor, the first transistor
The coil negative pole pin interconnection of input, the anode of the 14th diode and the relay, the 14th diode
The coil electrode pin of negative electrode and the relay is all connected with the 3rd power supply, and the common point of the relay is single for jingle bell control
First signal end of member, the normally closed point of the relay are the secondary signal end of the jingle bell control unit, the relay
Opened point is connected with the first end of the 8th resistance, its connecting node be the jingle bell control unit the 3rd signal end, institute
State the second end connection AC power of the 8th resistance.
Preferably, the voice transfer unit includes transformer and the 5th electric capacity, the 5th electric capacity it is just extremely described
The input of voice transfer unit, the negative pole of the 5th electric capacity is connected with the first end of the transformer, described
The first end of transformer secondary coil is the output end of the voice transfer unit, and the second of the transformer secondary output winding terminates
Ground.
Preferably, the power supply, which provides unit, includes the 9th resistance, the tenth resistance, the 11st resistance, the 12nd resistance, the
13 resistance, the 6th electric capacity, the 7th electric capacity, the 8th electric capacity, second transistor, third transistor, the 4th transistor, the 15th
Pole pipe, the second protection chip and the 3rd protection chip；The first end of 9th resistance, the first end of the 6th electric capacity and institute
The first input pin for stating the second protection chip is all connected with second source, the second end and the second transistor of the 9th resistance
Input connection, the controlled end of the second transistor, the second end of the 6th electric capacity, the first end of the tenth resistance
And the second input pin interconnection of the second protection chip, the output end of the second transistor and the second of the tenth resistance
End connection, its connecting node provide the output end of unit for the power supply；The input of the third transistor and the described tenth
The first end connection of one resistance, its connecting node provide the input of unit for the power supply, the third transistor it is controlled
End, the second end of the 11st resistance, the first end of the 7th electric capacity and the described 3rd protect the first input pin of chip
Interconnection, the output end of the third transistor are connected with the first end of the 12nd resistance, and the second of the 12nd resistance
End, the second end of the 7th electric capacity, the 3rd protection second input pin of chip, the 13rd resistance first end,
The controlled end interconnection of the negative electrode of 15th diode, the positive pole of the 8th electric capacity and the 4th transistor, described the
Second end of 13 resistance, the anode of the 15th diode, the negative pole of the 8th electric capacity and the 4th transistor
Output end is grounded, and the input of the 4th transistor provides the feedback end of unit for the power supply.
Technical solution of the present invention is by using computer export emergency start signal；Emergency telephone output emergency start letter
Number and emergency notice content information；Serial communication port circuit connection is extreme and the serial data between interchanger body is led to
Letter；Interchanger body exports jingle bell control signal when receiving emergency start signal, and, plucked recognizing common phone
During machine, the emergency notice content information that emergency telephone exports is sent to common phone；Domestic consumer's port circuit, receiving
During to jingle bell control signal, common phone jingle bell is controlled, and, the emergency start signal that emergency telephone is exported/urgent logical
Know that content information is sent to interchanger body.So, using this digital SPC exchange when, only need to set one therein it is general
Message register is emergency telephone machine, it is possible to emergency call function is realized, it is very easy.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Structure according to these accompanying drawings obtains other accompanying drawings.
The high-level schematic functional block diagram of Fig. 1 embodiments of digital SPC exchange one of the present invention；
Fig. 2 is the electrical block diagram of the embodiment of serial communication port circuit one in Fig. 1；
Fig. 3 is the electrical block diagram of the embodiment of Tu1Zhong domestic consumers port circuit one.
Drawing reference numeral explanation：
The realization, functional characteristics and advantage of the object of the invention will be described further referring to the drawings in conjunction with the embodiments.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only the part of the embodiment of the present invention, rather than whole embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art obtained under the premise of creative work is not made it is all its
His embodiment, belongs to the scope of protection of the invention.
It is to be appreciated that the description for being related to " first ", " second " etc. in the present invention is only used for describing purpose, without being understood that
To indicate or implying its relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ",
At least one this feature can be expressed or be implicitly included to the feature of " second ".In addition, the technical side between each embodiment
Case can be combined with each other, but must can be implemented as basis with those of ordinary skill in the art, when the combination of technical scheme
Occur conflicting or will be understood that the combination of this technical scheme is not present when can not realize, also not in the guarantor of application claims
Within the scope of shield.
The present invention proposes a kind of digital SPC exchange, and the digital SPC exchange can realize urgent call, and function is rich
It is rich.
Referring to Fig. 1, in one embodiment, above-mentioned digital SPC exchange includes interchanger body 200, interchanger body
200 have serial communication port circuit 210 and some domestic consumer's port circuits 220, and serial communication port circuit 210 is with calculating
Machine 100 is connected, and domestic consumer's port circuit 220 is connected with common phone or emergency telephone.
Here, computer 100 is used to export emergency start signal.Emergency telephone is used to exporting emergency start signal and tight
Anxious content of announcement information.Serial communication port circuit 210 is serial between computer 100 and interchanger body 200 for connecting
Data communicate.Interchanger body 200 is used for when receiving the emergency start signal of the emergency telephone of computer 100/ output, defeated
Go out jingle bell control signal, and, when recognizing common phone off-hook, by the emergency notice content information of emergency telephone output
Send to common phone.Domestic consumer's port circuit 220 is used for when receiving jingle bell control signal, and control common phone rings
Bell, and, the emergency start signal of emergency telephone output and emergency notice content information are sent to interchanger body 200.
It should be noted that network accounting software or hotel management software are installed in computer 100.When user's (ratio
Such as hotel management personnel or nurse, etc.) need to client's broadcasting emergency content of announcement information, can be by clicking on accounting management
Call option in software systems or hotel management software systems is realized.It is noted that because emergency telephone also has
There is the function of output emergency start signal, therefore, client (hotel occupancy client or ward patient, etc.) can also pass through number
Word programme-controlled exchange is to external broadcasting emergency content of announcement information.
Specifically, in this digital SPC exchange course of work：
First, network accounting software/hotel management software by serial communication port circuit 210 to interchanger body 200
Emergency start signal is exported, or emergency telephone is exported promptly by domestic consumer's port circuit 220 to interchanger body 200
Enabling signal.
Then, interchanger body 200 exports jingle bell control signal to domestic consumer's port circuit 220, domestic consumer port
Circuit 220 controls all common extension set (or the common extension set in part) jingle bells, until having recognized common extension set off-hook.
Then, emergency telephone exports emergency notice content by domestic consumer's port circuit 220 to interchanger body 200
Information.
Finally, interchanger body 200 sends the emergency notice content information received to the common phone of off-hook, realizes
Emergency call function.
Technical solution of the present invention exports emergency start signal by using computer 100；Emergency telephone output is promptly opened
Dynamic signal and emergency notice content information；Serial communication port circuit 210 connects the extreme and string between interchanger body 200
Row data communication；Interchanger body 200 exports jingle bell control signal when receiving emergency start signal, and, recognizing
During common phone off-hook, the emergency notice content information that emergency telephone exports is sent to common phone；Domestic consumer port
Circuit 220, when receiving jingle bell control signal, common phone jingle bell is controlled, and, urgent by emergency telephone output opens
Dynamic signal/emergency notice content information is sent to interchanger body 200.So, when using this digital SPC exchange, only need
It is emergency telephone machine to set a common phone therein, it is possible to emergency call function is realized, it is very convenient.
Referring to Fig. 2, optional, above-mentioned serial communication port circuit 210 includes the He of the first over-voltage over-current protection unit 211
Serial communication subelement 212.
First input end, the second output end, the 3rd input and the 4th output end of first over-voltage over-current protection unit 211
It is connected with computer 100；The of first output end of the first over-voltage over-current protection unit 211 and serial communication subelement 212
One input connects, the second input of the first over-voltage over-current protection unit 211 and the second output of serial communication subelement 212
End connection, the 3rd output end of the first over-voltage over-current protection unit 211 connect with the 3rd input of serial communication subelement 212
Connect, the 4th input of the first over-voltage over-current protection unit 211 is connected with the 4th output end of serial communication subelement 212；String
Row communication subelement 212 the first output end, the second input, the 3rd output end and the 4th input with interchanger body
(not shown) connection of control chip in 200.
Specifically, in the course of work of serial communication port circuit 210, if the voltage/current of input signal is excessive, the
One over-voltage over-current protection unit 211 opens overvoltage/overcurrent protection, prevents component to be damaged, and improves circuit reliability.
It is preferred that above-mentioned first over-voltage over-current protection unit 211 includes ten transient voltage suppressor diodes and four electricity
Resistance.
Specifically, the first transient voltage suppressor diode D1 first end, the of the second transient voltage suppressor diode D2
One end and first resistor R1 first end interconnect, and its connecting node is the first input end of the first over-voltage over-current protection unit 211；
First transient voltage suppressor diode D1 the second end and the 3rd transient voltage suppressor diode D3 first end are grounded, and the 3rd
Transient voltage suppressor diode D3 the second end is connected with first resistor R1 the second end, and its connecting node is the first over-voltage and over-current
First output end of protection location 211.
Second transient voltage suppressor diode D2 the second end, second resistance R2 first end and the 4th transient voltage suppress
Diode D4 first end interconnection, its connecting node are the second output end of the first over-voltage over-current protection unit 211；4th transient state
Voltage suppression diode D4 the second end and the 5th transient voltage suppressor diode D5 first end are grounded, the 5th transient voltage
The second end for suppressing diode D5 is connected with second resistance R2 the second end, and its connecting node is the first over-voltage over-current protection unit
211 the second input.
6th transient voltage suppressor diode D6 first end, the 7th transient voltage suppressor diode D7 first end and
Three resistance R3 first end interconnection, its connecting node are the 3rd input of the first over-voltage over-current protection unit 211；6th transient state
Voltage suppression diode D6 the second end and the 8th transient voltage suppressor diode D8 first end are grounded, the 8th transient voltage
The second end for suppressing diode D8 is connected with 3rd resistor R3 the second end, and its connecting node is the first over-voltage over-current protection unit
211 the 3rd output end.
7th transient voltage suppressor diode D7 the second end, the 4th resistance R4 first end and the 9th transient voltage suppress
Diode D9 first end interconnection, its connecting node are the 4th output end of the first over-voltage over-current protection unit 211；9th transient state
Voltage suppression diode D9 the second end and the tenth transient voltage suppressor diode D10 first end are grounded, the tenth transient state electricity
The second end for constraining diode D10 processed is connected with the 4th resistance R4 the second end, and its connecting node is the first over-voltage over-current protection
4th input of unit 211.
It is preferred that above-mentioned serial communication subelement 212 includes communication chip U1, the first electric capacity C1, the second electric capacity C2, the 3rd
Electric capacity C3, the 4th electric capacity C4 and the first power supply VCC1.
Specifically, communication chip U1 supply pin VCC is connected with the first power supply VCC1, communication chip U1 grounding leg GND
Ground connection；Communication chip U1 the first input pin R2IN is the first input end of serial communication subelement 212, the of communication chip U1
One output pin R2OUT is the first output end of serial communication subelement 212；Communication chip U1 the second input pin T2IN is serial
Communicate the second input of subelement 212, and communication chip U1 the second output pin T2OUT is the of serial communication subelement 212
Two output ends；Communication chip U1 the 3rd input pin R1IN be serial communication subelement 212 the 3rd input, communication chip U1
The 3rd output pin R1OUT be serial communication subelement 212 the 3rd output end；Communication chip U1 the 4th input pin T1IN is
4th input of serial communication subelement 212, communication chip U1 the 4th output pin T1OUT is serial communication subelement 212
The 4th output end.
Communication chip U1 the first positive supply pin C1+ is connected with the first electric capacity C1 first end, and the first of communication chip U1
Negative supply pin C1- is connected with the first electric capacity C1 the second end；Communication chip U1 the second positive supply pin C2+'s and the second electric capacity C2
First end connects, and communication chip U1 the second negative supply pin C2- is connected with the second electric capacity C2 the second end, and the of communication chip U1
Three positive supply pin V+ are connected with the 3rd electric capacity C3 first end, communication chip U1 the 3rd negative supply pin V-'s and the 4th electric capacity C4
First end is connected, and the 3rd electric capacity C3 the second end is connected with the 4th electric capacity C4 the second end.
Referring to Fig. 3, optional, above-mentioned domestic consumer's port circuit 220 includes power supply and provides unit 224, jingle bell control
Unit 222, the over-voltage over-current protection unit 221 of voice transfer unit 223 and second.
Power supply provides the of the output end of unit 224, the input of voice transfer unit 223 and jingle bell control unit 222
Binary signal end interconnects, and the secondary signal end of input and the second over-voltage over-current protection unit 221 that power supply provides unit 224 connects
Connect, power supply provides feedback end, the output end of voice transfer unit 223 and the 4th signal of jingle bell control unit 222 of unit 224
End is connected with the control chip in interchanger body 200.
Jingle bell control unit 222 the 3rd signal end connection AC power, the first signal end of jingle bell control unit 222 with
Second over-voltage over-current protection unit 221 the 4th signal end connection, the first signal end of the second over-voltage over-current protection unit 221 and
Secondary signal end is used to connect common phone or emergency telephone.
Specifically, in the course of work of domestic consumer's port circuit 220, the 4th signal end of jingle bell control unit 222 is not
Triggered, the first signal end of jingle bell control unit 222 connects with secondary signal end, and power supply provides the constant of the output of unit 224
Electric current is exported to common phone by jingle bell control unit 222, maintains the power supply of common phone.
In case of emergency, the 4th signal end of jingle bell control unit 222 receives triggering, and the of jingle bell control unit 222
One signal end connects with the 3rd signal end, and AC power is exported to common phone, common phone by jingle bell control unit 222 rings
Bell.Hereafter, when there is common phone off-hook, on the one hand, emergency telephone is by voice transfer unit 223 by emergency notice content
Information is sent to interchanger body 200；On the other hand, interchanger body 200 has recognized common phone off-hook, and will receive
Emergency notice content information send to the common phone of off-hook.
In whole process, it is emergency telephone that only need to set a wherein common phone, it is possible to realizes that base stage calls work(
Can, it is very easy.
It is preferred that above-mentioned second over-voltage over-current protection unit 221, which includes the tenth transient voltage, suppresses diode D11, the
12 transient voltage suppressor diode D12, the 13rd transient voltage suppressor diode D13, the 5th resistance R5, the 6th resistance R6 and
First protection chip U2.
First protection chip U2 supply pin V+ connection second sources VCC2, first protects chip U2 grounding leg V- to connect
Ground, the first protection chip U2 output pin AC, the tenth transient voltage suppress diode D11 the second end, the 12nd transient state electricity
Constrain diode D12 processed first end and the 5th resistance R5 the second end interconnection, its connecting node is the second over-voltage over-current protection
The secondary signal end of unit 221, the 12nd transient voltage suppressor diode D12 the second end, the 13rd transient voltage suppress two
Pole pipe D13 first end and the 6th resistance R6 the second end interconnect, and its connecting node is the second over-voltage over-current protection unit 221
4th signal end.
Tenth transient voltage suppress diode D11 first end and the 13rd transient voltage suppressor diode D13 the
Two ends are grounded, and the 5th resistance R5 first end is the first signal end of the second over-voltage over-current protection unit 221, the 6th resistance R6
First end be the second over-voltage over-current protection unit 221 secondary signal end.
It is noted that in the present embodiment, the first protection chip U2 also has input pin AC, the input pin and above-mentioned electricity
Source provides the output end connection of unit 224.
Specifically, in the course of work of domestic consumer's port circuit 220, if input to common phone power supply voltage/
Electric current is excessive, then the second over-voltage over-current protection unit 221 opens overvoltage/overcurrent protection, prevents component to be damaged, and improving circuit can
By property.
It is preferred that above-mentioned jingle bell control unit 222 includes the 7th resistance R7, the 8th resistance R8, the first transistor Q1, the tenth
Four diode D14 and relay J.
7th resistance R7 first end be jingle bell control unit 222 the 4th signal end, the 7th resistance R7 the second end with
The first transistor Q1 controlled end connection, the first transistor Q1 output head grounding, the first transistor Q1 input, the 14th
The coil negative pole pin interconnection of diode D14 anode and relay J, the 14th diode D14 negative electrode and relay J coil
Positive pole pin is all connected with the 3rd power supply VCC3, and relay J common point P is the first signal end of jingle bell control unit 222, relay
J normally closed point M be jingle bell control unit 222 secondary signal end, relay J opened point N and the 8th resistance R8 first end
Connection, its connecting node are the 3rd signal end of jingle bell control unit 222, and the 8th resistance R8 the second end connects AC power.
Specifically, when jingle bell control unit 222 is toggled, the first transistor Q1 conductings, relay J coil negative pole pin
It is grounded by the first transistor Q1, relay J common point P connects with opened point N, namely the first of jingle bell control unit 222
Signal end connects with the 3rd signal end.When jingle bell control unit 222 is no toggled, the first transistor Q1 cut-offs, relay
Device J common point P connects with normally closed point M, namely the first signal end of jingle bell control unit 222 connects with secondary signal end.
It is noted that in the present embodiment, the first transistor Q1 is on-off action.And the first transistor Q1 is chosen as
NPN type triode, and the base stage of NPN type triode is the first transistor Q1 controlled end, the current collection of NPN transistor extremely the
One transistor Q1 input, the transmitting extremely the first transistor Q1 output end of NPN transistor.
It is preferred that above-mentioned voice transfer unit 223 includes transformer TR and the 5th electric capacity C5, the 5th electric capacity C5 just extremely
The input of voice transfer unit 223, the 5th electric capacity C5 negative pole are connected with the first end of transformer TR primary coils, transformer
The first end of TR secondary coils is the output end of voice transfer unit 223, and the second end of transformer TR secondary windings is grounded.
It is noted that in the present embodiment, the second end of transformer TR primary coils is protected with above-mentioned second over-voltage and over-current
Protect the secondary signal end connection of unit 221.
Specifically, after the emergency notice content information of emergency telephone output hands over blocking coupling by the way that the 5th electric capacity C5 is logical,
Transmitted again by transformer TR to interchanger body 200.
It is preferred that above-mentioned power supply, which provides unit 224, includes the 9th resistance R9, the tenth resistance R10, the 11st resistance R11, the
12 resistance R12, the 13rd resistance R13, the 6th electric capacity C6, the 7th electric capacity C7, the 8th electric capacity C8, second transistor Q2, the 3rd
Transistor Q3, the 4th transistor Q4, the 15th diode D15, the second protection chip U3 and the 3rd protection chip U4.
First input pin A of the 9th resistance R9 first end, the 6th electric capacity C6 first end and the second protection chip U3 is equal
Second source VCC2 is connected, the 9th resistance R9 the second end is connected with second transistor Q2 input, second transistor Q2's
Controlled end, the 6th electric capacity C6 the second end, the tenth resistance R10 first end and second protect chip U3 the second input pin K mutual
Even, second transistor Q2 output end is connected with the tenth resistance R10 the second end, and its connecting node provides unit 224 for power supply
Output end.
Third transistor Q3 input is connected with the 11st resistance R11 first end, and its connecting node provides for power supply
The input of unit 224, third transistor Q3 controlled end, the 11st resistance R11 the second end, the 7th electric capacity C7 first end
And the 3rd protection chip U4 the first input pin A interconnection, third transistor Q3 output end and the 12nd resistance R12 first end
Connection, the 12nd resistance R12 the second end, the 7th electric capacity C7 the second end, the 3rd protection chip U4 the second input pin K, the
13 resistance R13 first end, the 15th diode D15 negative electrode, the 8th electric capacity C8 positive pole and the 4th transistor Q4 by
Control end interconnection, the 13rd resistance R13 the second end, the 15th diode D15 anode, the 8th electric capacity C8 negative pole and the 4th crystalline substance
Body pipe Q4 output end is grounded, and the 4th transistor Q4 input provides the feedback end of unit 224 for power supply.Wherein, second
The protections of protection chip U3 and the 3rd chip U4 is respectively provided with output pin AK.
Specifically, in power supply provides the course of work of unit 224, second source VCC2 is successively through the 9th resistance R9 and second
Transistor Q2 is exported, then successively via third transistor Q3, the 12nd resistance R12 and the 4th transistor Q4 to ground.
In whole process, the 6th electric capacity C6 and the tenth resistance R10 generation second transistors Q2 reference voltage, the 11st electricity
Hinder R11 and the 7th electric capacity C7 generation third transistor Q3 reference voltage.In this way, it can be mandarin that power supply, which provides unit 224,
Machine provides electric current constant power supply.
It should be noted that in the present embodiment, second transistor Q2 and third transistor Q3 are that constant current acts on, and second
Transistor Q2 is chosen as PNP type triode, and third transistor Q3 and the 4th transistor Q4 are chosen as NPN type triode.Specifically
Ground：
The base stage of PNP type triode be second transistor Q2 controlled end, transmitting extremely the second crystal of PNP transistor
Pipe Q2 input, the current collection extremely second transistor Q2 output end of PNP transistor.The base stage of NPN type triode is the
Three transistor Q3 controlled end, the current collection extremely third transistor Q3 input of NPN type triode, the hair of NPN type triode
Emitter-base bandgap grading is third transistor Q3 output end.The base stage of NPN type triode be the 4th transistor Q4 controlled end, the pole of NPN type three
The current collection of pipe extremely the 4th transistor Q4 input, transmitting extremely the 4th transistor Q4 output end of NPN type triode
Hereinafter, with reference to Fig. 1 to Fig. 3, the operation principle of this digital SPC exchange is illustrated：
First, network accounting software/hotel management software by serial communication port circuit 210 to interchanger body 200
Emergency start signal is exported, or emergency telephone is exported promptly by domestic consumer's port circuit 220 to interchanger body 200
Enabling signal.
Then, interchanger body 200 exports jingle bell control signal to domestic consumer's port circuit 220, the first transistor Q1
Conducting, relay J coil negative pole pin are grounded by the first transistor Q1, and relay J common point is connected with opened point, exchange
Power supply is exported to common phone, common phone through the 8th resistance R8, relay J and the second over-voltage over-current protection unit 221 successively
Jingle bell.
Then, when there is common phone off-hook：On the one hand, emergency telephone by the 5th electric capacity C5 and transformer TR to friendship
Body 200 of changing planes exports emergency notice content information；On the other hand, interchanger body 200 has recognized common phone off-hook, and
The emergency notice content information received is sent to the common extension set of off-hook.
Finally, common extension set receives emergency notice content information, and digital SPC exchange completes emergency call function.
This digital SPC exchange has the advantages that：
(1) by accessing on an emergency telephone, or software by danger button, the urgent call of whole system is realized
Function, fast reaction, cost effective；
(2) urgent call is realized on the basis of original programme-controlled exchange, it is not necessary to put into new equipment more new size again in addition,
Economic value is high；
(3) in the larger occasion of flow, quick urgent call processing in emergency circumstances can be realized；
(4) integrated using single equipment, it is reliably realized, and optimize entirely application input；
(5) agreement between equipment is assisted using standard, and compatibility is strong.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the scope of the invention, it is every at this
Under the inventive concept of invention, the equivalent structure transformation made using description of the invention and accompanying drawing content, or directly/use indirectly
It is included in other related technical areas in the scope of patent protection of the present invention.
Claims (9)
1. a kind of digital SPC exchange, it is characterised in that including interchanger body, the interchanger body has serial communication
Port circuit and some domestic consumer's port circuits, the serial communication port circuit are used to be connected with computer, described common
User port circuit is used to be connected with common phone or emergency telephone；Wherein,
The emergency telephone, for exporting emergency start signal and emergency notice content information；
The serial communication port circuit, for the serial data communication between the computer and the interchanger body；
The interchanger body, for when receiving the emergency start signal of the computer/emergency telephone output, exporting
Jingle bell control signal, and, when recognizing the common phone off-hook, in emergency notice that the emergency telephone is exported
Hold information to send to the common phone；
Domestic consumer's port circuit, for when receiving the jingle bell control signal, controlling the common phone jingle bell,
And emergency start signal and emergency notice content information that the emergency telephone exports are sent to the interchanger sheet
Body.
2. digital SPC exchange as claimed in claim 1, it is characterised in that the serial communication port circuit includes first
Over-voltage over-current protection unit and serial communication subelement；
The first input end of the first over-voltage over-current protection unit, the second output end, the 3rd input and the 4th output end are equal
It is connected with the computer；The of first output end of the first over-voltage over-current protection unit and the serial communication subelement
One input connects, and the second of the second input of the first over-voltage over-current protection unit and the serial communication subelement is defeated
Go out end connection, the 3rd output end of the first over-voltage over-current protection unit and the 3rd input of the serial communication subelement
Connection, the 4th input of the first over-voltage over-current protection unit connect with the 4th output end of the serial communication subelement
Connect；The first output end, the second input, the 3rd output end and the 4th input of the serial communication subelement are and interchanger
Control chip connection in body.
3. digital SPC exchange as claimed in claim 2, it is characterised in that the first over-voltage over-current protection unit includes
Ten transient voltage suppressor diodes and four resistance；
The first end of first transient voltage suppressor diode, the first end of the second transient voltage suppressor diode and first resistor
First end interconnects, and its connecting node is the first input end of the first over-voltage over-current protection unit；First transient voltage
Suppress the second end of diode and the first end of the 3rd transient voltage suppressor diode is grounded, the 3rd transient voltage suppresses
Second end of diode is connected with the second end of the first resistor, and its connecting node is the first over-voltage over-current protection unit
The first output end；
Second end of second transient voltage suppressor diode, the first end of second resistance and the 4th transient voltage suppress two poles
The first end interconnection of pipe, its connecting node are the second output end of the first over-voltage over-current protection unit；4th transient state
Second end of voltage suppression diode and the first end of the 5th transient voltage suppressor diode are grounded, the 5th transient voltage
The second end for suppressing diode is connected with the second end of the second resistance, and its connecting node is first over-voltage over-current protection
Second input of unit；
The first end of 6th transient voltage suppressor diode, the first end of the 7th transient voltage suppressor diode and 3rd resistor
First end interconnects, and its connecting node is the 3rd input of the first over-voltage over-current protection unit；6th transient voltage
Suppress the second end of diode and the first end of the 8th transient voltage suppressor diode is grounded, the 8th transient voltage suppresses
Second end of diode is connected with the second end of the 3rd resistor, and its connecting node is the first over-voltage over-current protection unit
The 3rd output end；
Second end of the 7th transient voltage suppressor diode, the first end of the 4th resistance and the 9th transient voltage suppress two poles
The first end interconnection of pipe, its connecting node are the 4th output end of the first over-voltage over-current protection unit；9th transient state
Second end of voltage suppression diode and the first end of the tenth transient voltage suppressor diode are grounded, the tenth transient voltage
The second end for suppressing diode is connected with the second end of the 4th resistance, and its connecting node is first over-voltage over-current protection
4th input of unit.
4. digital SPC exchange as claimed in claim 2, it is characterised in that the serial communication subelement includes communication core
Piece, the first electric capacity, the second electric capacity, the 3rd electric capacity, the 4th electric capacity and the first power supply；
The supply pin of the communication chip is connected with first power supply, the grounding leg ground connection of the communication chip；The communication
First input pin of chip is the first input end of the serial communication subelement, and the first output pin of the communication chip is institute
State the first output end of serial communication subelement；Second input pin of the communication chip is the of the serial communication subelement
Two inputs, the second output pin of the communication chip are the second output end of the serial communication subelement；The communication core
3rd input pin of piece is the 3rd input of the serial communication subelement, and the 3rd output pin of the communication chip is described
3rd output end of serial communication subelement；4th input pin of the communication chip is the 4 of the serial communication subelement
Input, the 4th output pin of the communication chip are the 4th output end of the serial communication subelement；
First positive supply pin of the communication chip is connected with the first end of first electric capacity, and the first of the communication chip is negative
Supply pin is connected with the second end of first electric capacity；The of second positive supply pin of the communication chip and second electric capacity
One end is connected, and the second negative supply pin of the communication chip is connected with the second end of second electric capacity, the communication chip
3rd positive supply pin is connected with the first end of the 3rd electric capacity, the 3rd negative supply pin of the communication chip and the described 4th electricity
The first end connection of appearance, the second end of the 3rd electric capacity is connected with the second end of the 4th electric capacity.
5. digital SPC exchange as claimed in claim 1, it is characterised in that domestic consumer's port circuit includes power supply
Unit, jingle bell control unit, voice transfer unit and the second over-voltage over-current protection unit are provided；
The power supply provides the second of the output end of unit, the input of the voice transfer unit and the jingle bell control unit
Signal end interconnects, and the secondary signal end of input and the second over-voltage over-current protection unit that the power supply provides unit connects
Connect, the power supply provides the 4th of the feedback end of unit, the output end of the voice transfer unit and the jingle bell control unit
Signal end is connected with the control chip in the interchanger body；
The 3rd signal end connection AC power of the jingle bell control unit, the first signal end of the jingle bell control unit and institute
State the second over-voltage over-current protection unit the 4th signal end connection, the first signal end of the second over-voltage over-current protection unit and
Secondary signal end is used to connect the common phone or the emergency telephone.
6. digital SPC exchange as claimed in claim 5, it is characterised in that the second over-voltage over-current protection unit includes
Tenth transient voltage suppresses diode, the 12nd transient voltage suppressor diode, the 13rd transient voltage suppressor diode, the
Five resistance, the 6th resistance and the first protection chip；
The supply pin connection second source of the first protection chip, the grounding leg ground connection of the first protection chip, described the
Output pin, the tenth transient voltage of one protection chip suppress the second end of diode, the 12nd transient voltage suppression
Second end of the first end of diode processed and the 5th resistance interconnects, and its connecting node is the second over-voltage over-current protection list
The secondary signal end of member, the second end of the 12nd transient voltage suppressor diode, the 13rd transient voltage suppress two
Second end of the first end of pole pipe and the 6th resistance interconnects, and its connecting node is the second over-voltage over-current protection unit
4th signal end；
The first end of the tenth transient voltage suppression diode and the second of the 13rd transient voltage suppressor diode
End is grounded, and the first end of the 5th resistance is the first signal end of the second over-voltage over-current protection unit, and the described 6th
The first end of resistance is the secondary signal end of the second over-voltage over-current protection unit.
7. digital SPC exchange as claimed in claim 5, it is characterised in that the jingle bell control unit includes the 7th electricity
Resistance, the 8th resistance, the first transistor, the 14th diode and relay；
The first end of 7th resistance be the jingle bell control unit the 4th signal end, the second end of the 7th resistance with
The controlled end connection of the first transistor, the output head grounding of the first transistor, the input of the first transistor,
The coil negative pole pin interconnection of the anode and the relay of 14th diode, the negative electrode of the 14th diode and institute
The coil electrode pin for stating relay is all connected with the 3rd power supply, and the common point of the relay is the first of the jingle bell control unit
Signal end, the normally closed point of the relay are the secondary signal end of the jingle bell control unit, the opened point of the relay with
The first end connection of 8th resistance, its connecting node are the 3rd signal end of the jingle bell control unit, the 8th electricity
The second end connection AC power of resistance.
8. digital SPC exchange as claimed in claim 5, it is characterised in that the voice transfer unit include transformer and
5th electric capacity, the input of the just extremely described voice transfer unit of the 5th electric capacity, the negative pole of the 5th electric capacity and institute
The first end connection of transformer is stated, the first end of the transformer secondary coil is the defeated of the voice transfer unit
Go out end, the second end ground connection of the transformer secondary output winding.
9. digital SPC exchange as claimed in claim 5, it is characterised in that the power supply, which provides unit, includes the 9th electricity
Resistance, the tenth resistance, the 11st resistance, the 12nd resistance, the 13rd resistance, the 6th electric capacity, the 7th electric capacity, the 8th electric capacity, second
Transistor, third transistor, the 4th transistor, the 15th diode, the second protection chip and the 3rd protection chip；
First input pin of the first end of the 9th resistance, the first end of the 6th electric capacity and the second protection chip is equal
Second source is connected, the second end of the 9th resistance is connected with the input of the second transistor, the second transistor
Controlled end, the second end of the 6th electric capacity, the first end of the tenth resistance and the second protection chip it is second defeated
Enter pin interconnection, the output end of the second transistor is connected with the second end of the tenth resistance, and its connecting node is the electricity
Source provides the output end of unit；
The input of the third transistor is connected with the first end of the 11st resistance, and its connecting node is that the power supply carries
For the input of unit, the controlled end of the third transistor, the second end of the 11st resistance, the of the 7th electric capacity
One end and the first input pin interconnection of the 3rd protection chip, the output end of the third transistor and the 12nd resistance
First end connection, the second end of the 12nd resistance, the second end of the 7th electric capacity, the of the 3rd protection chip
Two input pins, the first end of the 13rd resistance, the negative electrode of the 15th diode, the positive pole of the 8th electric capacity and institute
State the controlled end interconnection of the 4th transistor, the second end of the 13rd resistance, the anode of the 15th diode, described the
The output end of the negative pole of eight electric capacity and the 4th transistor is grounded, and the input of the 4th transistor carries for the power supply
For the feedback end of unit.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710683396.8A CN107465840B (en) | 2017-08-10 | 2017-08-10 | Digital program controlled exchanger |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710683396.8A CN107465840B (en) | 2017-08-10 | 2017-08-10 | Digital program controlled exchanger |
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| CN107465840B CN107465840B (en) | 2023-06-27 |
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2017
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| US4252997A (en) * | 1979-04-16 | 1981-02-24 | General Telephone Company Of California | Circuit for interfacing non-dial telephone and automatic switch equipment |
| CN1220799A (en) * | 1996-06-13 | 1999-06-23 | 诺基亚电信公司 | Procedure and system for ensuring emergency communication |
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