CN206209447U - Remote signals Acquisition Circuit and the distribution terminal being made of the circuit - Google Patents
Remote signals Acquisition Circuit and the distribution terminal being made of the circuit Download PDFInfo
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- CN206209447U CN206209447U CN201621259449.0U CN201621259449U CN206209447U CN 206209447 U CN206209447 U CN 206209447U CN 201621259449 U CN201621259449 U CN 201621259449U CN 206209447 U CN206209447 U CN 206209447U
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Abstract
The utility model discloses a kind of remote signals Acquisition Circuit, including isolation optocoupler, output pull-up resistor, pressure limiting circuit, filter circuit, shunt circuit and mu balanced circuit；Remote signals pass sequentially through the input that pressure limiting circuit, filter circuit, shunt circuit and mu balanced circuit connect isolation optocoupler, and the output head anode of isolation optocoupler connects positive source and exports remote signals by pull-up circuit, and negative pole of output end is connected to ground.The invention also discloses the distribution terminal that remote signals collection is carried out using the remote signals Acquisition Circuit.The utility model circuit and the distribution terminal using the circuit, by the collective effect of pressure limiting, filtering, shunting and mu balanced circuit, the input signal of remote signalling is carried out into voltage stabilizing, filtering shunting and pressure limiting, therefore it is applied to various remote signalling power supplies, and strong antijamming capability, it is applicable voltage range wide, circuit stability reliability.
Description
Technical field
The utility model is specifically related to a kind of remote signals Acquisition Circuit and the distribution terminal being made of the circuit.
Background technology
With the development and the improvement of people's living standards of economic technology, remote auto control technology has been widely used for
Among the production and life of people, the endless facility for bringing.
Remote signals collection is important component in remote auto control technology, the reliability of its Acquisition Circuit it is good
It is bad, the height of the reliability of remote auto control is directly influenced, therefore the importance of remote signals Acquisition Circuit is self-evident.
At present, widely used remote signalling circuit is as shown in Figure 1：It is typically made up of optocoupler U1 with resistance R1, remote signalling contact
Receive remote signals and be opened or closed, and the remote signals are exported after optocoupler U1 isolates.
But, because the remote signalling power supply voltage class of power system is more, generally require to enter behavior according to live applicable cases
The suitable parameter of optocoupler and resistance selection of remote signalling circuit.Simultaneously because site environment is severe, interference source is more, and interference strength is big,
Existing remote signalling circuit is difficult to meet jamproof requirement.
Utility model content
One of the purpose of this utility model is to provide that a kind of strong antijamming capability, operating voltage range be wide, circuit stability
Reliable remote signals Acquisition Circuit.
The two of the purpose of this utility model are to provide a kind of application remote signals Acquisition Circuit to carry out remote signals
The distribution terminal of collection.
This remote signals Acquisition Circuit that the utility model is provided, including isolation optocoupler and output pull-up resistor, also wrap
Include pressure limiting circuit, filter circuit, shunt circuit and mu balanced circuit；After remote signals input, pressure limiting circuit, filtered electrical are passed sequentially through
After road, shunt circuit and mu balanced circuit, the input of isolation optocoupler is input to, the positive pole of the output end of isolation optocoupler is by pull-up
Circuit is connected with positive source, while exporting remote signals, the negative pole of output end of isolation optocoupler is connected to ground.
Described pressure limiting circuit includes current-limiting resistance and clamp diode；Current-limiting resistance is serially connected in the input of remote signals
End, clamp diode is connected in parallel between the input of remote signals and common port.
Described filter circuit is filter capacitor；Filter capacitor is connected in parallel on the output end of pressure limiting circuit.
Described shunt circuit includes the first shunt resistance and the second shunt resistance；First shunt resistance is serially connected in filtered electrical
On the positive pole of road output end, the second shunt resistance be connected in parallel on the first shunt resistance output end and filter circuit output end it is public
Between end.
Described mu balanced circuit is voltage-regulator diode；Voltage-regulator diode is serially connected on the positive pole of shunt circuit output end, surely
The output end of the negative electrode connection shunt circuit of diode is pressed, the anode of voltage-regulator diode connects the input anode of isolation optocoupler.
The utility model additionally provides a kind of distribution for applying the remote signals Acquisition Circuit to carry out remote signals collection
Terminal.
This remote signals Acquisition Circuit that the utility model is provided, by being total to for pressure limiting, filtering, shunting and mu balanced circuit
Same-action, by the input signal of remote signalling carry out voltage stabilizing, filtering shunting and pressure limiting, therefore the utility model circuit can be applied to it is many
Remote signalling power supply, and strong antijamming capability are planted, voltage range is applicable extensively, circuit stability reliability.Additionally, remote signalling of the present utility model
Signal acquisition circuit is used not only for distribution terminal, but also can be applied to any need and carry out setting for remote signals collection
Standby including all types of measuring instrument（Such as electric energy meter, water meter, gas meter, flow meter, calorimeter etc.）, electric energy management terminal, distribution end
End, electric energy quality monitoring equipment, grid automation terminal, acquisition terminal, concentrator, data acquisition unit, measuring instrument write by hand device
Deng.
Brief description of the drawings
Fig. 1 is the circuit theory diagrams of the remote signals Acquisition Circuit of background technology.
Fig. 2 is the circuit theory diagrams of remote signals Acquisition Circuit of the present utility model.
Specific embodiment
It is illustrated in figure 2 the circuit theory diagrams of remote signals Acquisition Circuit of the present utility model：What the utility model was provided
This remote signals Acquisition Circuit, including isolation optocoupler and output pull-up resistor, also including pressure limiting circuit, filter circuit, shunting
Circuit and mu balanced circuit；After remote signals input, after passing sequentially through pressure limiting circuit, filter circuit, shunt circuit and mu balanced circuit,
The input of isolation optocoupler is input to, the positive pole of the output end of isolation optocoupler is connected by pull-up circuit with positive source, while
Output remote signals, the negative pole of output end of isolation optocoupler is connected to ground.
Specifically, the pressure limiting circuit described in remote signals Acquisition Circuit includes current-limiting resistance（R1 is indicated in figure）And clamp
Diode（Z1 is indicated in figure）；Filter circuit is filter capacitor（C1 is indicated in figure）；Shunt circuit includes the first shunt resistance（Figure
Middle sign R2）With the second shunt resistance（R3 is indicated in figure）；Mu balanced circuit is voltage-regulator diode（Z2 is indicated in figure）.
The 2nd pin connection remote signalling input signal Y X of current-limiting resistance R1；The pin of current-limiting resistance R1 the 1st and the described first shunting
The pin of resistance R2 the 2nd, the pin of clamp diode Z1 the 2nd, the pin of filter capacitor C1 the 1st are connected；The pin of first shunt resistance R2 the 1st with
2nd pin of zener diode Z2, the 1st pin of the second shunt resistance R3 are connected, the 1st pin of the voltage-regulator diode pipe Z2 with every
The 1st pin from optocoupler U1 is connected.2nd pin of the isolation optocoupler U1 and the 1st pin of clamping diode Z1, filter capacitor C1 the
2 pin, the pin of the second shunt resistance R3 the 2nd are connected, and are connected to remote signalling power supply negative terminal YXCOM；The pin of pull-up resistor R4 the 1st with
Digital power VCC is connected；The pin of isolation optocoupler U1 the 3rd are connected with digitally GND；The pin of isolation optocoupler U1 the 4th with
The pin of pull-up resistor R4 the 2nd are connected, and are connected to remote signals detection port GPIO.
When outside has remote signalling to be input into, outside remote signals pass through resistance R1, R2, zener diode Z2 and isolation optocoupler U1
Form loop.Then isolation optocoupler U1 conductings, the 3rd pin of isolation optocoupler and the 4th pin are turned on, on remote signals detection port GPIO
Signal voltage is pulled low in digitally GND voltage unanimously, has now detected outside remote signalling input.
Current-limiting resistance R1, clamping diode Z1 collectively form pressure limiting circuit in state-signal collection circuit, when outside remote signalling input
Voltage is high, during beyond the voltage stabilizing value of clamping diode Z1, by its by limiting voltage in voltage stabilizing value, thereby protect late-class circuit, make
Late-class circuit is not damaged because voltage transfinites.Remote signalling power supply voltage is higher than voltage stabilizing value by current-limiting resistance R1 partial pressures.Therefore, even if
Remote signalling power supply voltage is very high, because of mu balanced circuit effect, will not also damage circuit, can so ensure remote signalling loop in wide power scope
Lower work.Meanwhile, when remote signalling power supply reversal connection enters remote signalling circuit, by clamping diode Z1 can earial drainage act on, prevent reverse electricity
Pressure seals in optocoupler, makes circuit burnout, effectively protects remote signalling circuit not influenceed by reversal connection.
Filter capacitor C1 is used to filter the interference components of remote signalling input signal.Zener diode Z2 is connected serially to remote signalling loop
In, for determining the minimum input voltage threshold value of remote signalling.Second divider resistance R3 is shunt resistance, minimum for determining remote signalling input
Electric current.To ensure in remote signalling applied signal voltage value more than its voltage threshold, and remote signalling input circuit electric current is more than its circuit
During threshold value, just can ensure that isolation optocoupler U1 is turned on, to improve the interference free performance of remote signalling input circuit.Effectively prevent in interference feelings
Remote signalling loop misleads under condition.
Claims (6)
1. a kind of remote signals Acquisition Circuit, including isolation optocoupler and output pull-up resistor, it is characterised in that also including pressure limiting electricity
Road, filter circuit, shunt circuit and mu balanced circuit；After remote signals input, pressure limiting circuit, filter circuit, shunting are passed sequentially through
After circuit and mu balanced circuit, be input to the input of isolation optocoupler, the positive pole of the output end of isolation optocoupler by pull-up circuit with
Positive source is connected, while exporting remote signals, the negative pole of output end of isolation optocoupler is connected to ground.
2. remote signals Acquisition Circuit according to claim 1, it is characterised in that described pressure limiting circuit includes current limliting electricity
Resistance and clamp diode；Current-limiting resistance is serially connected in the input of remote signals, and clamp diode is connected in parallel on the input of remote signals
Between end and common port.
3. remote signals Acquisition Circuit according to claim 1, it is characterised in that described filter circuit is filter capacitor；
Filter capacitor is connected in parallel on the output end of pressure limiting circuit.
4. according to the remote signals Acquisition Circuit that one of claim 1 ~ 3 is described, it is characterised in that described shunt circuit includes
First shunt resistance and the second shunt resistance；First shunt resistance is serially connected on the positive pole of filter circuit output end, the second shunting
Resistor coupled in parallel is between the output end of the first shunt resistance and the common port of filter circuit output end.
5. according to the remote signals Acquisition Circuit that one of claim 1 ~ 3 is described, it is characterised in that described mu balanced circuit is steady
Pressure diode；Voltage-regulator diode is serially connected on the positive pole of shunt circuit output end, the negative electrode connection shunt circuit of voltage-regulator diode
Output end, the anode of voltage-regulator diode connects the input anode of isolation optocoupler.
6. a kind of distribution terminal, it is characterised in that including the remote signals Acquisition Circuit described in claim 1 ~ 5；The remote signalling letter
Number Acquisition Circuit is used to be acquired remote signals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621259449.0U CN206209447U (en) | 2016-11-23 | 2016-11-23 | Remote signals Acquisition Circuit and the distribution terminal being made of the circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621259449.0U CN206209447U (en) | 2016-11-23 | 2016-11-23 | Remote signals Acquisition Circuit and the distribution terminal being made of the circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206209447U true CN206209447U (en) | 2017-05-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621259449.0U Active CN206209447U (en) | 2016-11-23 | 2016-11-23 | Remote signals Acquisition Circuit and the distribution terminal being made of the circuit |
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| Country | Link |
|---|---|
| CN (1) | CN206209447U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109406864A (en) * | 2018-11-12 | 2019-03-01 | 山东鲁能智能技术有限公司 | Distribution network terminal board remote signalling voltage automatic identification circuit and method |
| CN110797982A (en) * | 2019-11-13 | 2020-02-14 | 珠海菲森电力科技有限公司 | Remote signaling acquisition method for distribution automation terminal |
| CN112379154A (en) * | 2020-10-30 | 2021-02-19 | 中车大连电力牵引研发中心有限公司 | Wide-range voltage signal acquisition circuit based on TL431 |
| CN112595887A (en) * | 2020-12-03 | 2021-04-02 | 和远智能科技股份有限公司 | High-voltage digital quantity acquisition circuit and working method thereof |
-
2016
- 2016-11-23 CN CN201621259449.0U patent/CN206209447U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109406864A (en) * | 2018-11-12 | 2019-03-01 | 山东鲁能智能技术有限公司 | Distribution network terminal board remote signalling voltage automatic identification circuit and method |
| CN110797982A (en) * | 2019-11-13 | 2020-02-14 | 珠海菲森电力科技有限公司 | Remote signaling acquisition method for distribution automation terminal |
| CN112379154A (en) * | 2020-10-30 | 2021-02-19 | 中车大连电力牵引研发中心有限公司 | Wide-range voltage signal acquisition circuit based on TL431 |
| CN112595887A (en) * | 2020-12-03 | 2021-04-02 | 和远智能科技股份有限公司 | High-voltage digital quantity acquisition circuit and working method thereof |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
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| CP01 | Change in the name or title of a patent holder |
Address after: 411201 28 Bai Shi Road, Jing Kai District, Xiangtan, Hunan Patentee after: Weisheng Energy Technology Co.,Ltd. Address before: 411201 28 Bai Shi Road, Jing Kai District, Xiangtan, Hunan Patentee before: WASION ELECTRIC Co.,Ltd. |