CN201479219U - Ringing sampling device for telephone communication - Google Patents
Ringing sampling device for telephone communication Download PDFInfo
- Publication number
- CN201479219U CN201479219U CN2009201621206U CN200920162120U CN201479219U CN 201479219 U CN201479219 U CN 201479219U CN 2009201621206 U CN2009201621206 U CN 2009201621206U CN 200920162120 U CN200920162120 U CN 200920162120U CN 201479219 U CN201479219 U CN 201479219U
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- ringing
- photoelectrical coupler
- sampling device
- diode
- resistance
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Abstract
The utility model belongs to the field of telephone remote control, in particular to a ringing sampling device for telephone communication. The ringing sampling device is characterized by comprising a constant current circuit (100), an integration circuit (300) and a microprocessor (400), wherein the constant current circuit (100) consists of a resistor (R1), a voltage stabilizing diode (DZ1) and a diode (D1), the integration circuit (300) consists of a photoelectric coupler (200), a capacitor (C1) and a resistor (R2), and the resistor (R1), the voltage stabilizing diode (DZ1), the light emitting side of the photoelectric coupler (200) and the diode (D2) are serially connected sequentially. The ringing sampling device can not only detect specific ringing frequency with accurate detection result but guarantees normal running of a telephone communication system.
Description
Technical field
The utility model relates to a kind of ringing-down sampling device for telephone communication, belongs to telephone remote control field.
Background technology
In the telephone remote control technology, normally come the operation of control system by the detection telephone ring signal, the Long-distance Control of startup household electrical appliances.Application number is 99257923.6 patent disclosure, and a kind of bell signal receiving loop control photoelectrical coupler that uses diode to form detects the device of bell signal.This device can only detect whether receiving ringing signal, and can not detect concrete ringing number, and testing result is inaccurate, causes misoperation easily, brings irremediable loss to intelligent telephone remote control system.Chinese invention patent CN1453983A discloses a kind of ringing-down sampling device that is used for telephonic communication; it be by resaistance-capacity coupling circuit and photoelectrical coupler detect bell signal; be parallel with diode on the photoelectrical coupler emission side; the emission side of protection photoelectrical coupler is not damaged when making the negative half period of bell signal; yet the incorporating into of diode, making circuit is to be access in when the negative half period of bell signal; therefore, influenced the normal use of telecommunications terminal device.
The utility model content
With not enough, the utility model provides a kind of concrete ringing number that detects at above-mentioned the problems of the prior art, and testing result is ringing-down sampling device for telephone communication accurately, and it is realized by the following technical solutions:
Ringing-down sampling device for telephone communication comprises integrating circuit 300, microprocessor 400 that current stabilization circuit 100, photoelectrical coupler 200, capacitor C 1 and the resistance R 2 be made up of resistance R 1, voltage stabilizing didoe DZ1 and diode D1 are formed.It is characterized in that: in the current stabilization circuit 100, resistance R 1 one termination phone A lines, the negative pole of another termination voltage stabilizing didoe DZ1, the positive pole of voltage stabilizing didoe DZ1 connects the emission side positive input terminal I2 of photoelectrical coupler 200, the emission side negative input end I3 of photoelectrical coupler 200 connects the positive pole of diode D1, the negative pole of diode D1 connects phone B line, and the outlet side L2 end of photoelectrical coupler 200 connects capacitor C 1 one ends and an end of resistance R 2 and the input IN of microprocessor 400 in the integrating circuit 300; Another termination DC power supply VCC of the other end of capacitor C 1 and resistance R 2 in the integrating circuit 300, the outlet side L3 end of photoelectrical coupler 200 connects the earth terminal GND of DC power supply.
The utility model is owing to adopted the break-make of bell signal through current stabilization circuit control photoelectrical coupler, the output termination integrating circuit of photoelectrical coupler, the discharge process of capacitor C 1 is slower than charging process in the integrating circuit, voltage on the capacitor C 1 can maintain below 1.5 volts basically, microprocessor can detect low level bell signal, can detect concrete ringing number thus, and testing result is accurate, has guaranteed the normal operation of telephonic communication system.
Description of drawings
Fig. 1 is a circuit connection diagram of the present utility model.
Embodiment
See also Fig. 1, ringing-down sampling device for telephone communication comprises integrating circuit 300, microprocessor 400 that current stabilization circuit 100, photoelectrical coupler 200, capacitor C 1 and the resistance R 2 be made up of resistance R 1, voltage stabilizing didoe DZ1 and diode D1 are formed.It is characterized in that: in the current stabilization circuit 100, resistance R 1 one termination phone A lines, the negative pole of another termination voltage stabilizing didoe DZ1, the positive pole of voltage stabilizing didoe DZ1 connects the emission side positive input terminal I2 of photoelectrical coupler 200, the emission side negative input end I3 of photoelectrical coupler 200 connects the positive pole of diode D1, the negative pole of diode D1 connects phone B line, and the outlet side L2 end of photoelectrical coupler 200 connects capacitor C 1 one ends and an end of resistance R 2 and the input IN of microprocessor 400 in the integrating circuit 300; Another termination DC power supply VCC of the other end of capacitor C 1 and resistance R 2 in the integrating circuit 300, the outlet side L3 end of photoelectrical coupler 200 connects the earth terminal GND of DC power supply.
The utility model is owing to adopted the break-make of bell signal through current stabilization circuit control photoelectrical coupler, the output termination integrating circuit of photoelectrical coupler, capacitor C 1 is by resistance R 2 discharges, the time constant of discharge is: 100K Ω * 150 μ F=1.5 second, and the frequency of bell signal is 25HZ, cycle is 40 milliseconds, the discharge process of capacitor C 1 is slower than charging process in the integrating circuit, voltage on the capacitor C 1 can maintain below 1.5 volts basically, microprocessor can detect low level bell signal, can detect concrete ringing number thus, and testing result is accurate, has guaranteed the normal operation of telephonic communication system.Described photoelectrical coupler 200 preferred models are 4N25, and resistance R 1 has played the effect of current limliting and pressure limiting, when the positive half cycle of ring, when bell signal reaches certain voltage value, voltage stabilizing didoe DZ1 reverse breakdown, electric current make it luminous by the emission side of photoelectrical coupler; Otherwise during the negative half period of ring, D1 blocks by diode, photoelectrical coupler, resistance R 1, voltage stabilizing didoe DZ1 can not with work, protected photoelectrical coupler better, simultaneously, do not influence the operate as normal of telecommunications end switch device.
Preferred 51 series of above-mentioned described microprocessor 400 unit IC IC2, model is any in 8031,8051,8052.
The above only is the utility model typical case specific embodiment; everyly be familiar with this skill personage and make various modifications or change very easily in view of the above; therefore, all equivalence replacements that the utility model claim spirit is done that do not break away from all should be included in this patent protection range.
Claims (3)
1. ringing-down sampling device for telephone communication comprises integrating circuit (300), microprocessor (400) that current stabilization circuit (100), photoelectrical coupler (200), capacitor C 1 and the resistance R 2 be made up of resistance R 1, voltage stabilizing didoe DZ1 and diode D1 are formed.It is characterized in that: in the current stabilization circuit (100), resistance R 1 one termination phone A lines, the negative pole of another termination voltage stabilizing didoe DZ1, the positive pole of voltage stabilizing didoe DZ1 connects the emission side positive input terminal I2 of photoelectrical coupler (200), the emission side negative input end I3 of photoelectrical coupler (200) connects the positive pole of diode D1, the negative pole of diode D1 connects phone B line, and the outlet side L2 end of photoelectrical coupler (200) connects capacitor C 1 one ends and an end of resistance R 2 and the input IN of microprocessor (400) in the integrating circuit (300); The other end of capacitor C 1 and another termination DC power supply VCC of resistance R 2 in the integrating circuit (300), the outlet side L3 end of photoelectrical coupler (200) connects the earth terminal GND of DC power supply.
2. ringing-down sampling device for telephone communication according to claim 1 is characterized in that: described photoelectrical coupler (200) model is 4N25.
3. ringing-down sampling device for telephone communication according to claim 1 is characterized in that: the preferred model of described microprocessor (400) is any in 8031,8051,8052.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201621206U CN201479219U (en) | 2009-06-26 | 2009-06-26 | Ringing sampling device for telephone communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201621206U CN201479219U (en) | 2009-06-26 | 2009-06-26 | Ringing sampling device for telephone communication |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201479219U true CN201479219U (en) | 2010-05-19 |
Family
ID=42415474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201621206U Expired - Fee Related CN201479219U (en) | 2009-06-26 | 2009-06-26 | Ringing sampling device for telephone communication |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201479219U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105430200A (en) * | 2015-10-30 | 2016-03-23 | 广州市芯德电子技术有限公司 | Automatic ringing signal test system, method and device |
-
2009
- 2009-06-26 CN CN2009201621206U patent/CN201479219U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105430200A (en) * | 2015-10-30 | 2016-03-23 | 广州市芯德电子技术有限公司 | Automatic ringing signal test system, method and device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100519 Termination date: 20100626 |