CN205229291U - Voltage signal collection system - Google Patents
Voltage signal collection system Download PDFInfo
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- CN205229291U CN205229291U CN201521084037.3U CN201521084037U CN205229291U CN 205229291 U CN205229291 U CN 205229291U CN 201521084037 U CN201521084037 U CN 201521084037U CN 205229291 U CN205229291 U CN 205229291U
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Abstract
The utility model discloses a voltage signal collection system, including voltage testing, signal amplification circuit, AD conversion module, display screen, singlechip and control module, voltage testing's signal output part connects signal amplification circuit's signal input part, and signal amplification circuit's signal output part connects AD conversion module's signal input part, the intact moulding number conversion of AD conversion module and will change after signal output part 0 give the singlechip, display screen and control module are still connected to the singlechip. The utility model discloses voltage signal collection system utilizes the adjustable reference source of optical coupler and three -terminal to constitute voltage conversion buffer circuit, and the more accurate changes voltage signal to set up signal processing module in the system, its anti -interference ability is stronger simultaneously, consequently has the stable performance, controls advantage accurate and that application scope is wide.
Description
Technical field
The utility model relates to a kind of System of voltage acquisition, specifically a kind of voltage signal acquisition system.
Background technology
Voltage, also referred to as electric potential difference or potential difference (PD), is the physical quantity of the energy difference that unit of measurement electric charge produces because electromotive force is different in electrostatic field.Its size equals unit positive charge because moving to B point institute work by electric field force effect from A point, and the direction gage of voltage is decided to be the direction pointing to electronegative potential from noble potential.The international unit of voltage is made as volt, and conventional unit also has millivolt, microvolt, kilovolt etc.This concept is similar to " hydraulic pressure " that water level height causes.It is pointed out that " voltage " word is general only in the middle of circuit, " electric potential difference " and " potential difference (PD) " is then widely used in the middle of all electrical phenomenas.
Voltage is the most frequently used signal of field of electric control, and all will gather voltage in various household electrical appliances, Industry Control, the most precision of existing System of voltage acquisition is low, anti-interference is poor, has a strong impact on control accuracy when control field is applied.
Utility model content
The purpose of this utility model is to provide a kind of voltage signal acquisition system, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
A kind of voltage signal acquisition system, comprise voltage detection module, signal amplification circuit, A/D modular converter, display screen, single-chip microcomputer and control module, the signal input part of the signal output part connection signal amplifying circuit of described voltage detection module, the signal output part of signal amplification circuit connects the signal input part of A/D modular converter, A/D modular converter complete analog to digital conversion and by conversion after digital data transmission to single-chip microcomputer, described single-chip microcomputer also connects display screen and control module.
As preferred version of the present utility model: described voltage detection module comprises diode D1, resistance R1, resistance R2 and photo-coupler IC1, the negative electrode of diode D1 connects power supply VCC, the anode of diode D1 connects the negative electrode of diode D2, electric capacity C1, electric capacity C2, resistance R2, the pin 4 of photo-coupler IC1 and signal output part OUT, the pin 3 contact resistance R1 of photo-coupler IC1, the other end of resistance R2 connects the other end of electric capacity C1, the other end of electric capacity C2 and the anode of diode D2 ground connection, the other end contact resistance R3 of resistance R1, resistance R4 and power supply VCC, the other end of resistance R3 connects the pin 1 of photo-coupler IC1, the other end of the pin 2 contact resistance R4 of photo-coupler IC1, the negative electrode of electric capacity C3 and three end adjustable reference source Q1, the other end contact resistance R5 of electric capacity C1, the other end contact resistance R6 of resistance R5, the reference pole of resistance R7 and three end adjustable reference source Q1, the anode contact resistance R7 of three end adjustable reference source Q1 ground connection, the other end connection signal input end IN of resistance R6, the model of photo-coupler IC1 is 4N25.
As preferred version of the present utility model: the core component of described A/D modular converter is TLV1544 chip.
As preferred version of the present utility model: described display screen is LCD display.
As preferred version of the present utility model: described single-chip microcomputer is AT89C52 single-chip microcomputer.
As preferred version of the present utility model: the model of described three end adjustable reference source Q1 is TL431.
Compared with prior art, the beneficial effects of the utility model are: the utility model voltage signal acquisition system utilizes photo-coupler and three end adjustable reference sources composition voltage transitions buffer circuit, more accurate voltage signal to be changed, and be provided with signal processing module in systems in which, its interference free performance is comparatively strong simultaneously, therefore has stable performance, controls advantage accurate and applied widely.
Accompanying drawing explanation
Fig. 1 is the system chart of voltage signal acquisition system,
Fig. 2 is the circuit diagram of voltage detection module.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1,2, in the utility model embodiment, a kind of voltage signal acquisition system, comprise voltage detection module, signal amplification circuit, A/D modular converter, display screen, single-chip microcomputer and control module, the signal input part of the signal output part connection signal amplifying circuit of described voltage detection module, the signal output part of signal amplification circuit connects the signal input part of A/D modular converter, A/D modular converter complete analog to digital conversion and by conversion after digital data transmission to single-chip microcomputer, described single-chip microcomputer also connects display screen and control module.
As preferred version of the present utility model: described voltage detection module comprises diode D1, resistance R1, resistance R2 and photo-coupler IC1, the negative electrode of diode D1 connects power supply VCC, the anode of diode D1 connects the negative electrode of diode D2, electric capacity C1, electric capacity C2, resistance R2, the pin 4 of photo-coupler IC1 and signal output part OUT, the pin 3 contact resistance R1 of photo-coupler IC1, the other end of resistance R2 connects the other end of electric capacity C1, the other end of electric capacity C2 and the anode of diode D2 ground connection, the other end contact resistance R3 of resistance R1, resistance R4 and power supply VCC, the other end of resistance R3 connects the pin 1 of photo-coupler IC1, the other end of the pin 2 contact resistance R4 of photo-coupler IC1, the negative electrode of electric capacity C3 and three end adjustable reference source Q1, the other end contact resistance R5 of electric capacity C1, the other end contact resistance R6 of resistance R5, the reference pole of resistance R7 and three end adjustable reference source Q1, the anode contact resistance R7 of three end adjustable reference source Q1 ground connection, the other end connection signal input end IN of resistance R6, the model of photo-coupler IC1 is 4N25.
The core component of A/D modular converter is TLV1544 chip.Display screen is LCD display.Single-chip microcomputer is AT89C52 single-chip microcomputer.The model of three end adjustable reference source Q1 is TL431.
Principle of work of the present utility model is: the voltage detection module in Fig. 2 is made up of the cooperation of asking of three terminal regulator Q1 and photoelectrical coupler IC1.The LED strip connection of Q1 and IC1 primary side, the electric current that Q1 negative electrode flows through is exactly the electric current of the light emitting diode of photoelectrical coupler IC1 inside.From IN input voltage via resistance R5, after the potential-divider network that resistance R6 and resistance R7 forms, the 2.5V reference voltage formed in reference voltage and three terminal regulator Q1 compares, the negative electrode of three terminal regulator Q1 forms error voltage, the working current of the light emitting diode of photoelectrical coupler IC1 inside is changed, the current signal of change is converted to voltage signal by optocoupler again to make a gift to someone output terminal OUT, the voltage exported is sent into signal amplification circuit and is carried out voltage amplification, the signal output part of signal amplification circuit connects the signal input part of A/D modular converter, A/D modular converter complete analog to digital conversion and by conversion after digital data transmission to single-chip microcomputer, voltage signal is shown by LCD display by single-chip microcomputer on the one hand, steering order can be exported on the other hand to control module, control module can be relay, solenoid valve, controllable silicon, alarm etc., native system may be used for different control fields.
Claims (5)
1. a voltage signal acquisition system, comprise voltage detection module, signal amplification circuit, A/D modular converter, display screen, single-chip microcomputer and control module, it is characterized in that, the signal input part of the signal output part connection signal amplifying circuit of described voltage detection module, the signal output part of signal amplification circuit connects the signal input part of A/D modular converter, A/D modular converter completes analog to digital conversion and by the digital data transmission after conversion to single-chip microcomputer, described single-chip microcomputer also connects display screen and control module;
Described voltage detection module comprises diode D1, resistance R1, the negative electrode of resistance R2 and photo-coupler IC1, diode D1 connects power supply VCC, and the anode of diode D1 connects the negative electrode of diode D2, electric capacity C1, electric capacity C2, resistance R2, the pin 4 of photo-coupler IC1 and signal output part OUT, the other end of the pin 3 contact resistance R1 of photo-coupler IC1, resistance R2 connects the other end of electric capacity C1, the other end of electric capacity C2 and the anode of diode D2 ground connection, the other end contact resistance R3 of resistance R1, the other end of resistance R4 and power supply VCC, resistance R3 connects the pin 1 of photo-coupler IC1, the other end of the pin 2 contact resistance R4 of photo-coupler IC1, the negative electrode of electric capacity C3 and three end adjustable reference source Q1, the other end contact resistance R6 of the other end contact resistance R5 of electric capacity C1, resistance R5, the reference pole of resistance R7 and three end adjustable reference source Q1, the anode contact resistance R7 of three end adjustable reference source Q1 ground connection, the other end connection signal input end IN of resistance R6, the model of photo-coupler IC1 is 4N25.
2. voltage signal acquisition system according to claim 1, is characterized in that, the core component of described A/D modular converter is TLV1544 chip.
3. voltage signal acquisition system according to claim 1, is characterized in that, described display screen is LCD display.
4. voltage signal acquisition system according to claim 1, is characterized in that, described single-chip microcomputer is AT89C52 single-chip microcomputer.
5. voltage signal acquisition system according to claim 1, is characterized in that, the model of described three end adjustable reference source Q1 is TL431.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521084037.3U CN205229291U (en) | 2015-12-23 | 2015-12-23 | Voltage signal collection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521084037.3U CN205229291U (en) | 2015-12-23 | 2015-12-23 | Voltage signal collection system |
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| Publication Number | Publication Date |
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| CN205229291U true CN205229291U (en) | 2016-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201521084037.3U Expired - Fee Related CN205229291U (en) | 2015-12-23 | 2015-12-23 | Voltage signal collection system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107069649A (en) * | 2017-04-27 | 2017-08-18 | 长沙金定信息技术有限公司 | A kind of electrical load safety operation control system |
| CN108007833A (en) * | 2017-11-20 | 2018-05-08 | 合肥硕佳电子科技有限公司 | A kind of automatic range dust detector |
| CN108099649A (en) * | 2017-12-15 | 2018-06-01 | 中能国盛动力电池技术（北京）股份公司 | A kind of lithium ion battery of electric automobile manages system |
| CN109120254A (en) * | 2018-10-09 | 2019-01-01 | 华北电力大学（保定） | A kind of switching value input circuit |
| CN110702970A (en) * | 2019-09-06 | 2020-01-17 | 恒大智慧充电科技有限公司 | Signal detection circuit |
| CN113671244A (en) * | 2021-08-06 | 2021-11-19 | 优利德科技(中国)股份有限公司 | Amplification module, detection sampling device and signal sampling amplification method |
-
2015
- 2015-12-23 CN CN201521084037.3U patent/CN205229291U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107069649A (en) * | 2017-04-27 | 2017-08-18 | 长沙金定信息技术有限公司 | A kind of electrical load safety operation control system |
| CN108007833A (en) * | 2017-11-20 | 2018-05-08 | 合肥硕佳电子科技有限公司 | A kind of automatic range dust detector |
| CN108099649A (en) * | 2017-12-15 | 2018-06-01 | 中能国盛动力电池技术（北京）股份公司 | A kind of lithium ion battery of electric automobile manages system |
| CN109120254A (en) * | 2018-10-09 | 2019-01-01 | 华北电力大学（保定） | A kind of switching value input circuit |
| CN110702970A (en) * | 2019-09-06 | 2020-01-17 | 恒大智慧充电科技有限公司 | Signal detection circuit |
| CN110702970B (en) * | 2019-09-06 | 2022-03-22 | 恒大恒驰新能源汽车研究院(上海)有限公司 | Signal detection circuit |
| CN113671244A (en) * | 2021-08-06 | 2021-11-19 | 优利德科技(中国)股份有限公司 | Amplification module, detection sampling device and signal sampling amplification method |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160511 Termination date: 20161223 |