CN203661034U - Interface circuit of wireless measurement and control device and optical remote communicating and optical remote control interface circuits - Google Patents
Interface circuit of wireless measurement and control device and optical remote communicating and optical remote control interface circuits Download PDFInfo
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- CN203661034U CN203661034U CN201320844492.3U CN201320844492U CN203661034U CN 203661034 U CN203661034 U CN 203661034U CN 201320844492 U CN201320844492 U CN 201320844492U CN 203661034 U CN203661034 U CN 203661034U
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- 230000003287 optical effect Effects 0.000 title claims abstract description 25
- 238000005259 measurement Methods 0.000 title abstract 3
- 239000003990 capacitor Substances 0.000 claims abstract description 32
- 230000011664 signaling Effects 0.000 claims description 20
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 claims description 5
- 208000032365 Electromagnetic interference Diseases 0.000 abstract 1
- 230000008054 signal transmission Effects 0.000 description 4
- 230000005622 photoelectricity Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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Abstract
The utility model provides an interface circuit of a wireless measurement and control device and an optical remote communicating interface circuit and an optical remote control interface circuit, and relates to wireless control devices. A first resistor, an avalanche photodiode and a second resistor of the optical remote communicating interface circuit are connected in series between a power supply and the ground, a first capacitor is connected between the diode and the ground, a fourth resistor is connected between the power supply and a collecting electrode of a first triode, a second capacitor is connected between a cathode of the diode and a base electrode of the first triode, a third resistor is connected between the base electrode of the first triode and the ground, an emitting electrode of the first triode is connected to the ground, and the voltage of the collecting electrode of the first triode serves as a signal input terminal. A fifth resistor of the optical remote control interface circuit and a laser diode are connected in parallel between the power supply and a collecting electrode of a second triode, an emitting electrode of the second triode is connected to the ground, a seventh resistor is connected between a base electrode and the emitting electrode of the second triode, one terminal of a sixth resistor is connected with the base electrode of the second triode, and the voltage of the other terminal of the sixth resistor serves as a signal output terminal. According to the interface circuit of the wireless measurement and control device, electromagnetic interferences in an industrial control environment can be avoided, and on-site control is facilitated.
Description
Technical field
The utility model relates to control device of wireless, relates in particular to a kind of interface circuit of Radio test and control apparatus and light remote signalling, optical remote control interface circuit.
Background technology
The remote control interface circuit of traditional Radio test and control apparatus is generally to utilize the dry contact interface circuit of relay design, needs the outside voltage that remote signal is provided.According to different industry control environment, need different control voltage, like this just bring a problem: different industry control environment, different control voltage requests, the relay of capacity that just need to be different, the universal performance of product is poor like this, and in the time needing the higher external power source of electric pressure, if outer power voltage is stable not, the remote signal providing also can be stable not, so the remote signal producing is also unstable, harmful for controlled device.Traditional electrical signal collection remote signalling; voltage signal the brought impact that is interfered; bring large voltge surge to the remote signalling collection point of measure and control device; although general remote signalling collection point isolates with photoelectricity; protect the internal circuit of measure and control device; and device has protective circuit and carrys out release voltage impact; but due to industrial control condition complexity; the large electric current that large voltge surge causes still can burn the external circuit of photoelectricity isolation; As time goes on the consequence brought is like this exactly, and the remote signalling acquisition interface of measure and control device cannot have been worked.Simultaneously can switch in relay theory 100,000 times, have individually situation aging, that damage but do not get rid of.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of interface circuit of Radio test and control apparatus and light remote signalling, optical remote control interface circuit, can resist industry control environment electromagnetics and disturb, and is beneficial to field control.
In order to address the above problem, the utility model provides a kind of interface circuit of Radio test and control apparatus, comprises light remote signalling interface circuit and optical remote control interface circuit; Described smooth remote signalling interface circuit comprises the first triode Q1, avalanche photodide Q2, the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, the first capacitor C 1, the second capacitor C 2 and signal input part, and described optical remote control interface circuit comprises laser diode LD 1, the 5th resistance R 5, the 6th resistance R 6, the 7th resistance R 7, the second triode Q3 and signal output part;
Described the first resistance R 1, avalanche photodide Q2 and the second resistance R 2 are connected between power supply and earth terminal successively; Described first capacitor C 1 one end is connected with the positive pole of described avalanche photodide Q1, and the other end is connected with earth terminal; Described the 4th resistance R 4 one end are connected with power supply, and the other end is connected with the collector electrode of the first triode Q1; The emitter of described the first triode Q1 is connected with earth terminal; One end of described the second capacitor C 2 is connected with the negative pole of described avalanche photodide Q2, and the other end is connected with the base stage of described the first triode Q1; Described the 3rd resistance R 3 one end are connected with the base stage of described the first triode Q1, and the other end is connected with earth terminal; The collector voltage of described the first triode Q1 is as signal input part,
After described the 5th resistance R 5 is in parallel with described laser diode LD 1, one end is connected with power supply, the other end is connected with the collector electrode of the second triode Q3, the transmitter of described the second triode Q3 is connected with earth terminal, described the 7th resistance R 7 one end are connected with the base stage of described the second triode Q3, the other end is connected with described the second triode Q3 emitter, and one end of described the 6th resistance R 6 is connected with the base stage of described the second triode Q3, and other end voltage is as signal output part.
Alternatively, described the first triode Q1 and described the second triode Q3 are NPN type triode.
Alternatively, the resistance of described the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, the 5th resistance R 5, the 6th resistance R 6 is 1000 Ω, and the resistance of the 7th resistance R 7 is 10000 Ω.
Alternatively, described the first capacitor C 1 is that 0.33uF, the second capacitor C 2 are 10uF.
In order to address the above problem, the utility model provides a kind of light remote signalling interface circuit, comprise the first triode Q1, avalanche photodide Q2, the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, the first capacitor C 1, the second capacitor C 2 and signal input part
Described the first resistance R 1, avalanche photodide Q2 and the second resistance R 2 are connected between power supply and earth terminal successively; Described first capacitor C 1 one end is connected with the positive pole of described avalanche photodide Q1, and the other end is connected with earth terminal; Described the 4th resistance R 4 one end are connected with power supply, and the other end is connected with the collector electrode of the first triode Q1; The emitter of described the first triode Q1 is connected with earth terminal; One end of described the second capacitor C 2 is connected with the negative pole of described avalanche photodide Q2, and the other end is connected with the base stage of described the first triode Q1; Described the 3rd resistance R 3 one end are connected with the base stage of described the first triode Q1, and the other end is connected with earth terminal; The collector voltage of described the first triode Q1 is as signal input part.
Alternatively, described the first triode Q1 is NPN type triode, and the resistance of described the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4 is 1000 Ω, and described the first capacitor C 1 is that 0.33uF, the second capacitor C 2 are 10uF.
In order to address the above problem, the utility model provides a kind of optical remote control interface circuit, comprises laser diode LD 1, the 5th resistance R 5, the 6th resistance R 6, the 7th resistance R 7, the second triode Q3;
After described the 5th resistance R 5 is in parallel with described laser diode LD 1, one end is connected with power supply, the other end is connected with the collector electrode of the second triode Q3, the transmitter of described the second triode Q3 is connected with earth terminal, described the 7th resistance R 7 one end are connected with the base stage of described the second triode Q3, the other end is connected with described the second triode Q3 emitter, and one end of described the 6th resistance R 6 is connected with the base stage of described the second triode Q3, and other end voltage is as signal output part.
Alternatively, described the second triode Q3 is NPN type triode, and the resistance of the 5th resistance R 5, the 6th resistance R 6 is 1000 Ω, and the resistance of the 7th resistance R 7 is 10000 Ω.
In sum, the utility model utilizes optic component, the remote control remote communication signal of telecommunication control discarding tradition, can accomplish to resist industry control environment electromagnetics disturbs, can avoid the features such as remote signalling remote signal voltage of transformation grade simultaneously, and optical signal transmission distance, decay are less, are conducive to the requirement of field control.
Brief description of the drawings
Fig. 1 is the structural representation of the light remote signalling interface circuit of the utility model embodiment;
Fig. 2 is the structural representation of the optical remote control interface circuit of the utility model embodiment.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, hereinafter in connection with accompanying drawing, embodiment of the present utility model is elaborated.It should be noted that, in the situation that not conflicting, the combination in any mutually of the feature in embodiment and embodiment in the application.
As depicted in figs. 1 and 2, the interface circuit of a kind of Radio test and control apparatus that the utility model provides, comprises light remote signalling interface circuit and optical remote control interface circuit; Described smooth remote signalling interface circuit comprises the first triode Q1, avalanche photodide Q2, the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, the first capacitor C 1, the second capacitor C 2 and signal input part, and described optical remote control interface circuit comprises laser diode LD 1, the 5th resistance R 5, the 6th resistance R 6, the 7th resistance R 7, the second triode Q3 and signal output part;
Described the first resistance R 1, avalanche photodide Q2 and the second resistance R 2 are connected between power supply and earth terminal successively; Described first capacitor C 1 one end is connected with the positive pole of described avalanche photodide Q1, and the other end is connected with earth terminal; Described the 4th resistance R 4 one end are connected with power supply, and the other end is connected with the collector electrode of the first triode Q1; The emitter of described the first triode Q1 is connected with earth terminal; One end of described the second capacitor C 2 is connected with the negative pole of described avalanche photodide Q2, and the other end is connected with the base stage of described the first triode Q1; Described the 3rd resistance R 3 one end are connected with the base stage of described the first triode Q1, and the other end is connected with earth terminal; The collector voltage of described the first triode Q1 is as signal input part,
After described the 5th resistance R 5 is in parallel with described laser diode LD 1, one end is connected with power supply, the other end is connected with the collector electrode of the second triode Q3, the transmitter of described the second triode Q3 is connected with earth terminal, described the 7th resistance R 7 one end are connected with the base stage of described the second triode Q3, the other end is connected with described the second triode Q3 emitter, and one end of described the 6th resistance R 6 is connected with the base stage of described the second triode Q3, and other end voltage is as signal output part.
Alternatively, described the first triode Q1 and described the second triode Q3 are NPN type triode.
Alternatively, the resistance of described the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, the 5th resistance R 5, the 6th resistance R 6 is 1000 Ω, and the resistance of the 7th resistance R 7 is 10000 Ω.
Alternatively, described the first capacitor C 1 is that 0.33uF, the second capacitor C 2 are 10uF.
Smooth remote signalling interface circuit of the present utility model utilizes the stability of optical signal transmission, and the advantage of light signal is not relate to the signal of telecommunication, and electromagnetic interference is inoperative to light, there will not be the interference signal of large voltage or large electric current.Optical device is to convert faint light signal to the needed signal of telecommunication simultaneously, and has compared with prior art saved photoelectricity and isolated this part.
Avalanche photodide Q2 in Fig. 1, absorb lightwave signal, P-N knot forms photoelectric current, strengthen reverse biased, produce the snowslide phenomenon that photoelectric current increases sharply at double, in circuit, be equivalent to conducting, be equivalent to have signal to be input in circuit, formed the transmission of a signal or the change of signal condition amount.
Optical remote control interface circuit of the present utility model utilizes small voltage signal and light signal, and laser diode LD 1 in Fig. 2, as the light source of light remote signal.By driving described laser diode LD 1 to discharge directed laser, transmitting optical signal.
The utility model utilizes optic component, and the remote control remote communication signal of telecommunication control discarding tradition can be accomplished to resist industry control environment electromagnetics and be disturbed, and can avoid the always feature such as voltage of transformation grade of remote signalling remote signal simultaneously.And optical signal transmission distance, decay are few, are conducive to the requirement of field control.
Above embodiment is only unrestricted in order to the technical solution of the utility model to be described, only with reference to preferred embodiment, the utility model is had been described in detail.Those of ordinary skill in the art should be appreciated that and can modify or be equal to replacement the technical solution of the utility model, and do not depart from the spirit and scope of technical solutions of the utility model, all should be encompassed in the middle of claim scope of the present utility model.
Claims (8)
1. an interface circuit for Radio test and control apparatus, is characterized in that, comprises light remote signalling interface circuit and optical remote control interface circuit; Described smooth remote signalling interface circuit comprises the first triode Q1, avalanche photodide Q2, the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, the first capacitor C 1, the second capacitor C 2 and signal input part, and described optical remote control interface circuit comprises laser diode LD 1, the 5th resistance R 5, the 6th resistance R 6, the 7th resistance R 7, the second triode Q3 and signal output part;
Described the first resistance R 1, avalanche photodide Q2 and the second resistance R 2 are connected between power supply and earth terminal successively; Described first capacitor C 1 one end is connected with the positive pole of described avalanche photodide Q1, and the other end is connected with earth terminal; Described the 4th resistance R 4 one end are connected with power supply, and the other end is connected with the collector electrode of the first triode Q1; The emitter of described the first triode Q1 is connected with earth terminal; One end of described the second capacitor C 2 is connected with the negative pole of described avalanche photodide Q2, and the other end is connected with the base stage of described the first triode Q1; Described the 3rd resistance R 3 one end are connected with the base stage of described the first triode Q1, and the other end is connected with earth terminal; The collector voltage of described the first triode Q1 is as signal input part,
After described the 5th resistance R 5 is in parallel with described laser diode LD 1, one end is connected with power supply, the other end is connected with the collector electrode of the second triode Q3, the transmitter of described the second triode Q3 is connected with earth terminal, described the 7th resistance R 7 one end are connected with the base stage of described the second triode Q3, the other end is connected with described the second triode Q3 emitter, and one end of described the 6th resistance R 6 is connected with the base stage of described the second triode Q3, and other end voltage is as signal output part.
2. interface circuit as claimed in claim 1, is characterized in that: described the first triode Q1 and described the second triode Q3 are NPN type triode.
3. interface circuit as claimed in claim 1, is characterized in that: the resistance of described the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, the 5th resistance R 5, the 6th resistance R 6 is 1000 Ω, and the resistance of the 7th resistance R 7 is 10000 Ω.
4. interface circuit as claimed in claim 1, is characterized in that: described the first capacitor C 1 is that 0.33uF, the second capacitor C 2 are 10uF.
5. a light remote signalling interface circuit, is characterized in that: comprise the first triode Q1, avalanche photodide Q2, the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, the first capacitor C 1, the second capacitor C 2 and signal input part,
Described the first resistance R 1, avalanche photodide Q2 and the second resistance R 2 are connected between power supply and earth terminal successively; Described first capacitor C 1 one end is connected with the positive pole of described avalanche photodide Q1, and the other end is connected with earth terminal; Described the 4th resistance R 4 one end are connected with power supply, and the other end is connected with the collector electrode of the first triode Q1; The emitter of described the first triode Q1 is connected with earth terminal; One end of described the second capacitor C 2 is connected with the negative pole of described avalanche photodide Q2, and the other end is connected with the base stage of described the first triode Q1; Described the 3rd resistance R 3 one end are connected with the base stage of described the first triode Q1, and the other end is connected with earth terminal; The collector voltage of described the first triode Q1 is as signal input part.
6. smooth remote signalling interface circuit as claimed in claim 5, it is characterized in that: described the first triode Q1 is NPN type triode, the resistance of described the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4 is 1000 Ω, and described the first capacitor C 1 is that 0.33uF, the second capacitor C 2 are 10uF.
7. an optical remote control interface circuit, is characterized in that: comprise laser diode LD 1, the 5th resistance R 5, the 6th resistance R 6, the 7th resistance R 7, the second triode Q3;
After described the 5th resistance R 5 is in parallel with described laser diode LD 1, one end is connected with power supply, the other end is connected with the collector electrode of the second triode Q3, the transmitter of described the second triode Q3 is connected with earth terminal, described the 7th resistance R 7 one end are connected with the base stage of described the second triode Q3, the other end is connected with described the second triode Q3 emitter, and one end of described the 6th resistance R 6 is connected with the base stage of described the second triode Q3, and other end voltage is as signal output part.
8. optical remote control interface circuit as claimed in claim 7, is characterized in that: described the second triode Q3 is NPN type triode, and the resistance of the 5th resistance R 5, the 6th resistance R 6 is 1000 Ω, and the resistance of the 7th resistance R 7 is 10000 Ω.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320844492.3U CN203661034U (en) | 2013-12-19 | 2013-12-19 | Interface circuit of wireless measurement and control device and optical remote communicating and optical remote control interface circuits |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320844492.3U CN203661034U (en) | 2013-12-19 | 2013-12-19 | Interface circuit of wireless measurement and control device and optical remote communicating and optical remote control interface circuits |
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| CN203661034U true CN203661034U (en) | 2014-06-18 |
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| CN201320844492.3U Expired - Lifetime CN203661034U (en) | 2013-12-19 | 2013-12-19 | Interface circuit of wireless measurement and control device and optical remote communicating and optical remote control interface circuits |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106655723A (en) * | 2016-11-24 | 2017-05-10 | 国家电网公司 | Silicon controlled rectifier trigger control unit and control method thereof |
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2013
- 2013-12-19 CN CN201320844492.3U patent/CN203661034U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106655723A (en) * | 2016-11-24 | 2017-05-10 | 国家电网公司 | Silicon controlled rectifier trigger control unit and control method thereof |
| CN106655723B (en) * | 2016-11-24 | 2023-11-17 | 国家电网公司 | Trigger silicon controlled rectifier control unit and control method |
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Granted publication date: 20140618 |
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| CX01 | Expiry of patent term |