CN106771536B - A kind of system dc electricity monitoring device - Google Patents
A kind of system dc electricity monitoring device Download PDFInfo
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- CN106771536B CN106771536B CN201611177721.5A CN201611177721A CN106771536B CN 106771536 B CN106771536 B CN 106771536B CN 201611177721 A CN201611177721 A CN 201611177721A CN 106771536 B CN106771536 B CN 106771536B
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- 230000005611 electricity Effects 0.000 title claims abstract description 44
- 238000012806 monitoring device Methods 0.000 title claims abstract description 22
- 239000003990 capacitor Substances 0.000 claims description 87
- 238000001514 detection method Methods 0.000 claims description 24
- 102000007315 Telomeric Repeat Binding Protein 1 Human genes 0.000 claims description 23
- 108010033711 Telomeric Repeat Binding Protein 1 Proteins 0.000 claims description 23
- 238000012545 processing Methods 0.000 claims description 22
- 238000012544 monitoring process Methods 0.000 claims description 16
- 101150087393 PIN3 gene Proteins 0.000 claims description 13
- 108010059419 NIMA-Interacting Peptidylprolyl Isomerase Proteins 0.000 claims description 11
- 102100026114 Peptidyl-prolyl cis-trans isomerase NIMA-interacting 1 Human genes 0.000 claims description 11
- 101100190527 Arabidopsis thaliana PIN5 gene Proteins 0.000 claims description 9
- 238000005070 sampling Methods 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 239000013078 crystal Substances 0.000 claims description 7
- 101100190530 Arabidopsis thaliana PIN8 gene Proteins 0.000 claims description 5
- 108010037490 Peptidyl-Prolyl Cis-Trans Isomerase NIMA-Interacting 4 Proteins 0.000 claims description 5
- 102100031653 Peptidyl-prolyl cis-trans isomerase NIMA-interacting 4 Human genes 0.000 claims description 5
- 230000003321 amplification Effects 0.000 claims description 5
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 5
- 101150011456 PIN8 gene Proteins 0.000 claims description 4
- 101100190529 Arabidopsis thaliana PIN7 gene Proteins 0.000 claims description 3
- 238000000034 method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
- G01R19/2513—Arrangements for monitoring electric power systems, e.g. power lines or loads; Logging
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Abstract
The embodiment of the invention discloses a kind of system dc electricity monitoring devices, for solving to develop with system to miniaturization and integrated direction, power module and each integrated circuit, which are placed on one piece of circuit board and use, has reduced interference unnecessary since nearby principle, system board power supply becomes the key component of system steady operation, DC voltage, DC current are measured using measuring tools such as oscillograph and multimeters when board power supply in system is debugged, but when these boards are in cabinet, then remove to monitor these voltages, electric current with regard to highly difficult technical problem.
Description
Technical field
The present invention relates to monitoring field more particularly to a kind of system dc electricity monitoring devices.
Background technique
In processor system or DLP system, the electricity consumption in feed system that can system power supply DC voltage safe is set
It is standby, it generally requires to be measured with the measuring tools such as multimeter side upon power-up of the system to confirm.
As system develops to miniaturization and integrated direction, power module and each integrated circuit are placed on one block of electricity
On the plate of road and using interference unnecessary has been reduced since nearby principle, system board power supply becomes the crucial portion of system steady operation
Point.DC voltage, DC current are measured using measuring tools such as oscillograph and multimeters when board power supply in system is debugged, but
When these boards are in cabinet, then go to monitor these voltages, electric current with regard to highly difficult.
Summary of the invention
The embodiment of the invention provides a kind of system dc electricity monitoring device, solve as system is to miniaturization and integrated
The direction of change is developed, and power module is placed on one piece of circuit board with each integrated circuit and is not had using having reduced since nearby principle
Necessary interference, system board power supply become the key component of system steady operation, and the board power supply in system uses when debugging
The measuring tools such as oscillograph and multimeter measure DC voltage, DC current, but work as these boards in cabinet, then go to monitor
With regard to highly difficult technical problem when these voltages, electric current.
A kind of system dc electricity monitoring device provided in an embodiment of the present invention includes: DC input A, voltage follow inspection
Survey unit B, current detecting unit D, signal ADC converting unit F, data processing unit G, remote monitoring unit H；
The DC input A is connect with the voltage follow detection unit B, the current detecting unit D；
The voltage follow detection unit B, the current detecting unit D are connect with the signal ADC converting unit F；
The data processing unit G is connected between the signal ADC converting unit F and the remote monitoring unit H；
Wherein, by the DC input A by DC supply input by the voltage follow detection unit B, described
Current detecting unit D carries out electric signal sampling, is by analog-to-digital conversion by electric signal using the signal ADC converting unit F
Digital signal, and the digital signal is input to the data processing unit G and carries out calculating the determining DC parameter, make
Obtain the state that the remote monitoring unit H monitors the DC parameter in real time.
Preferably,
Further include: DC-DC power supply unit C；
Wherein the DC-DC power supply unit C respectively with the DC input A, the voltage follow detection unit B,
The current detecting unit D, the signal ADC converting unit F connection.
Preferably,
The voltage follow detection unit B includes:
DC voltage 12V, resistance R448, resistance R447, resistance R445, resistance R449, resistance R514, capacitor C693, electricity
Hinder R519, resistance R521, operational amplifier LM358U80A, capacitor C691, capacitor C692, resistance R513, zener diode D80,
Capacitor C129, TVS diode D78, TVS diode D79, operational amplifier LM358U80B；
The one end the resistance R448 is connect with the DC voltage 12V, the resistance R448 other end and the resistance
The connection of the one end R447, the one end the resistance R449 are connect with the one end the resistance R445, the resistance R449 other end ground connection, institute
The resistance R445 other end is stated to connect with the resistance R447 other end, the one end the resistance R514, the resistance R514 other end,
The capacitor C693 is connect with the in-phase end PIN3 of the operational amplifier LM358U80A, the one end the resistance R519 with it is described
The reverse side PIN2 connection of operational amplifier LM358U80A, the resistance R519 other end and the one end the resistance R521 and institute
The output end PIN1 connection of operational amplifier LM358U80A is stated, the resistance R521 and resistance R519 composition follow circuit,
The one end the zener diode D80 connects the resistance R521 other end, the one end the resistance R513, the zener diode
D80 other end ground connection, the resistance R513 other end connect the capacitor C129, the one end the TVS diode D78,8 channel moulds
The input port PIN2 of number converter U78, the one end the TVS diode D79 are connect with the TVS diode D78 other end, institute
TVS diode D79 other end ground connection is stated, the one end the capacitor C691 is connect with DC voltage 3.3V, the one end the capacitor C692,
The capacitor C691 other end ground connection, the capacitor C692 other end ground connection.
Preferably,
The TVS diode D78, the TVS diode D79 constitute the protrusion-dispelling wave circuit for following voltage.
Preferably,
Further include: load LOAD unit E；The load LOAD unit E is connect with the DC input A.
Preferably,
The current detecting unit D includes: resistance R1404, resistance R1405, resistance R446, resistance R1406, resistance
R518, resistance R520, resistance R517, operational amplifier LM358U79A, capacitor C687, capacitor C688, DC voltage 5V, direct current
Voltage 12V, resistance R1407；
The one end the resistance R1404 connects the DC voltage 12V, the one end the resistance R1405, the resistance R1404
The other end connects the one end the resistance R446, the load end LOAD, and the one end the resistance R1406 is grounded, and the resistance R1406 is another
Reverse side PIN2, the one end the resistance R518, the resistance R1405 other end at end and the operational amplifier LM358U79A
Connection, the one end resistance R1407 ground connection, the resistance R1407 other end are put with the resistance R446 other end, the operation
The in-phase end PIN3 connection of big device LM358U79A, the resistance R520, the resistance R518 constitute operational amplifier described in amplifier
The amplification factor circuit of LM358U79A, the reverse side PIN2 of the one end the resistance R518 and the operational amplifier LM358U79A
The output end PIN1 of connection, the resistance R518 other end and the operational amplifier LM358U79A, the one end the resistance R520
Connection, input port PIN4, the resistance R517 mono- of the resistance R520 other end and the 8 channel modulus converter U78
End connection, the resistance R517 other end ground connection.
Preferably,
The data processing unit G includes:
8 8-digit microcontroller U82 of low-power consumption, without source crystal oscillator X5, capacitor C171, capacitor C172；
The output end and the no source crystal oscillator X5, the one end the capacitor C171, institute of the 8 8-digit microcontroller U82 of low-power consumption
State the connection of the one end capacitor C172, the capacitor C171 other end, capacitor C172 other end ground connection.
Preferably,
The DC-DC power supply unit C includes:
Power supply control chip MP1495U81, DC voltage 5V, capacitor C697, resistance R524, resistance R522, resistance R523,
Inductance L25, resistance R1403, resistance R1402, capacitor C695；
The one end capacitor C697 ground connection, the capacitor C697 other end connect the DC voltage 5V, the resistance
The PIN2 of the one end R524, the one end the resistance R522 and the power supply control chip MP1495U81, the resistance R524 are another
One end connects the PIN1 of the power supply control chip MP1495U81, and the resistance R522 other end connects the power supply and controls core
The one end the PIN8 of piece MP1495U81, the inductance L25 connects the end PIN3 of the power supply control chip MP1495U81, the electricity
Feel PIN5, the one end the resistance R1403, the capacitor C695 mono- of the L25 other end and the power supply control chip MP1495U81
End, the DC voltage 3.3V connection, the capacitor C695 other end ground connection, the resistance R1403, the resistance R1402 are
The feedback resistance of the power supply control chip MP1495U81, the resistance R1403, the resistance R1402 constitute the confession of DC-DC
The feed circuit of circuit, PIN7, the electricity of the resistance R1403 other end and the power supply control chip MP1495U81
Hinder the connection of the one end R1402, the resistance R1402 other end ground connection.
Preferably,
The DC-DC power supply unit C is used to be the operational amplifier LM358U79A, the operational amplifier
8 LM358U80A, the operational amplifier LM358U80B, the 8 channel modulus converter U78, low-power consumption microcontrollers
Device U82 provides DC voltage.
Preferably,
The output end of the 8 channel modulus converter U78 is described low with the data processing unit G's by digital signal
The input terminal of 8 8-digit microcontroller U82 of power consumption connects.
As can be seen from the above technical solutions, the embodiment of the present invention has the advantage that
A kind of system dc electricity monitoring device provided in the embodiment of the present invention, comprising: DC input A, voltage with
With detection unit B, current detecting unit D, signal ADC converting unit F, data processing unit G, remote monitoring unit H；It is described straight
Galvanic electricity input terminal A is connect with the voltage follow detection unit B, the current detecting unit D；The voltage follow detection unit
B, the current detecting unit D is connect with the signal ADC converting unit F；The data processing unit G is connected to the signal
Between ADC converting unit F and the remote monitoring unit H；Wherein, DC supply input is passed through by the DC input A
It crosses the voltage follow detection unit B, the current detecting unit D and carries out electric signal sampling, converted using the signal ADC
Unit F by electric signal by analog-to-digital conversion be digital signal, and by the digital signal be input to the data processing unit G into
Row, which calculates, determines the DC parameter, so that the remote monitoring unit H monitors the state of the DC parameter in real time.This
In embodiment, by precision current, voltage sampling circuit, using ADC, intelligent control core is given using the input mode of fully differential
Piece, intelligent chip obtain the DC parameter of electrical equipment, monitor electrical equipment parameters in real time by calculating adopted data
State, access data at any time, show data, judge the power work state of equipment, realize measuring system to set in time
The working condition of standby DC current used, DC voltage, timely monitoring system board DC voltage, electric current is convenient long-range right
The tracking of system dc power supply solves and develops with system to miniaturization and integrated direction, power module and each collection
It is placed on one piece of circuit board and uses at circuit and reduced interference unnecessary since nearby principle, system board power supply, which becomes, is
It unites the key component of steady operation, when board power supply debugging in system is straight using the measurement of the measuring tools such as oscillograph and multimeter
Galvanic electricity pressure, DC current, but when these boards are in cabinet, then remove to monitor these voltages, electric current with regard to highly difficult technology
Problem.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other attached drawings according to these attached drawings.
A kind of structural representation of one embodiment of the system dc electricity monitoring device provided in Fig. 1 embodiment of the present invention
Figure；
A kind of structural representation of another embodiment of the system dc electricity monitoring device provided in Fig. 2 embodiment of the present invention
Figure.
Specific embodiment
The embodiment of the invention provides a kind of system dc electricity monitoring device, for solving as system is to miniaturization sum aggregate
Develop at the direction of change, power module is placed on one piece of circuit board and is used with each integrated circuit and reduced since nearby principle
Interference unnecessary, system board power supply become the key component of system steady operation, and the board power supply in system is adopted when debugging
DC voltage, DC current are measured with measuring tools such as oscillograph and multimeters, but works as these boards in cabinet, then go to supervise
With regard to highly difficult technical problem when controlling these voltages, electric current.
In order to make the invention's purpose, features and advantages of the invention more obvious and easy to understand, below in conjunction with the present invention
Attached drawing in embodiment, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that disclosed below
Embodiment be only a part of the embodiment of the present invention, and not all embodiment.Based on the embodiments of the present invention, this field
Those of ordinary skill's all other embodiment obtained without making creative work, belongs to protection of the present invention
Range.
Referring to Fig. 1, a kind of one embodiment of the system dc electricity monitoring device provided in the embodiment of the present invention includes:
DC input A, voltage follow detection unit B, current detecting unit D, signal ADC converting unit F, data processing unit G,
Remote monitoring unit H；
The DC input A is connect with the voltage follow detection unit B, the current detecting unit D；
The voltage follow detection unit B, the current detecting unit D are connect with the signal ADC converting unit F；
The data processing unit G is connected between the signal ADC converting unit F and the remote monitoring unit H；
Wherein, by the DC input A by DC supply input by the voltage follow detection unit B, described
Current detecting unit D carries out electric signal sampling, is by analog-to-digital conversion by electric signal using the signal ADC converting unit F
Digital signal, and the digital signal is input to the data processing unit G and carries out calculating the determining DC parameter, make
Obtain the state that the remote monitoring unit H monitors the DC parameter in real time.
Further,
Further include: DC-DC power supply unit C；
Wherein the DC-DC power supply unit C respectively with the DC input A, the voltage follow detection unit B,
The current detecting unit D, the signal ADC converting unit F connection.
Further,
As Fig. 2, the voltage follow detection unit B include:
DC voltage 12V, resistance R448, resistance R447, resistance R445, resistance R449, resistance R514, capacitor C693, electricity
Hinder R519, resistance R521, operational amplifier LM358U80A, capacitor C691, capacitor C692, resistance R513, zener diode D80,
Capacitor C129, TVS diode D78, TVS diode D79, operational amplifier LM358U80B；
The one end the resistance R448 is connect with the DC voltage 12V, the resistance R448 other end and the resistance
The connection of the one end R447, the one end the resistance R449 are connect with the one end the resistance R445, the resistance R449 other end ground connection, institute
The resistance R445 other end is stated to connect with the resistance R447 other end, the one end the resistance R514, the resistance R514 other end,
The capacitor C693 is connect with the in-phase end PIN3 of the operational amplifier LM358U80A, the one end the resistance R519 with it is described
The reverse side PIN2 connection of operational amplifier LM358U80A, the resistance R519 other end and the one end the resistance R521 and institute
The output end PIN1 connection of operational amplifier LM358U80A is stated, the resistance R521 and resistance R519 composition follow circuit,
The one end the zener diode D80 connects the resistance R521 other end, the one end the resistance R513, the zener diode
D80 other end ground connection, the resistance R513 other end connect the capacitor C129, the one end the TVS diode D78,8 channel moulds
The input port PIN2 of number converter U78, the one end the TVS diode D79 are connect with the TVS diode D78 other end, institute
TVS diode D79 other end ground connection is stated, the one end the capacitor C691 is connect with DC voltage 3.3V, the one end the capacitor C692,
The capacitor C691 other end ground connection, the capacitor C692 other end ground connection.
Further,
The TVS diode D78, the TVS diode D79 constitute the protrusion-dispelling wave circuit for following voltage.
Further,
Further include: load LOAD unit E；The load LOAD unit E is connect with the DC input A.
Further,
If Fig. 2, the current detecting unit D include: resistance R1404, resistance R1405, resistance R446, resistance R1406, electricity
Hinder R518, resistance R520, resistance R517, operational amplifier LM358U79A, capacitor C687, capacitor C688, DC voltage 5V, straight
Galvanic electricity presses 12V, resistance R1407；
The one end the resistance R1404 connects the DC voltage 12V, the one end the resistance R1405, the resistance R1404
The other end connects the one end the resistance R446, the load end LOAD, and the one end the resistance R1406 is grounded, and the resistance R1406 is another
Reverse side PIN2, the one end the resistance R518, the resistance R1405 other end at end and the operational amplifier LM358U79A
Connection, the one end resistance R1407 ground connection, the resistance R1407 other end are put with the resistance R446 other end, the operation
The in-phase end PIN3 connection of big device LM358U79A, the resistance R520, the resistance R518 constitute operational amplifier described in amplifier
The amplification factor circuit of LM358U79A, the reverse side PIN2 of the one end the resistance R518 and the operational amplifier LM358U79A
The output end PIN1 of connection, the resistance R518 other end and the operational amplifier LM358U79A, the one end the resistance R520
Connection, input port PIN4, the resistance R517 mono- of the resistance R520 other end and the 8 channel modulus converter U78
End connection, the resistance R517 other end ground connection.
Further,
As Fig. 2, the data processing unit G include:
8 8-digit microcontroller U82 of low-power consumption, without source crystal oscillator X5, capacitor C171, capacitor C172；
The output end and the no source crystal oscillator X5, the one end the capacitor C171, institute of the 8 8-digit microcontroller U82 of low-power consumption
State the connection of the one end capacitor C172, the capacitor C171 other end, capacitor C172 other end ground connection.
Further,
As Fig. 2, the DC-DC power supply unit C include:
Power supply control chip MP1495U81, DC voltage 5V, capacitor C697, resistance R524, resistance R522, resistance R523,
Inductance L25, resistance R1403, resistance R1402, capacitor C695；
The one end capacitor C697 ground connection, the capacitor C697 other end connect the DC voltage 5V, the resistance
The PIN2 of the one end R524, the one end the resistance R522 and the power supply control chip MP1495U81, the resistance R524 are another
One end connects the PIN1 of the power supply control chip MP1495U81, and the resistance R522 other end connects the power supply and controls core
The one end the PIN8 of piece MP1495U81, the inductance L25 connects the end PIN3 of the power supply control chip MP1495U81, the electricity
Feel PIN5, the one end the resistance R1403, the capacitor C695 mono- of the L25 other end and the power supply control chip MP1495U81
End, the DC voltage 3.3V connection, the capacitor C695 other end ground connection, the resistance R1403, the resistance R1402 are
The feedback resistance of the power supply control chip MP1495U81, the resistance R1403, the resistance R1402 constitute the confession of DC-DC
The feed circuit of circuit, PIN7, the electricity of the resistance R1403 other end and the power supply control chip MP1495U81
Hinder the connection of the one end R1402, the resistance R1402 other end ground connection.
Further,
The DC-DC power supply unit C is used to be the operational amplifier LM358U79A, the operational amplifier
8 LM358U80A, the operational amplifier LM358U80B, the 8 channel modulus converter U78, low-power consumption microcontrollers
Device U82 provides DC voltage.
Further,
The output end of the 8 channel modulus converter U78 is described low with the data processing unit G's by digital signal
The input terminal of 8 8-digit microcontroller U82 of power consumption connects.
Referring to Fig. 2, in a kind of another embodiment of the system dc electricity monitoring device provided in the embodiment of the present invention,
Resistance R1404, resistance R1405, resistance R446, resistance R1406, resistance R518, resistance R520, resistance R517, operational amplifier
LM358U79A, capacitor C687, capacitor C688, DC voltage 5V (VD5.0_SB), DC voltage 12V (VD12_P), resistance
R1407 forms the current detecting unit of system dc voltage, wherein the one end resistance R1404 connection DC voltage 12V (VD12_P)
With resistance R1405, the other end connects resistance R446 and the load end LOAD, and resistance R1404 is the sampling resistor of DC current, resistance
The one end R1406 ground connection, reverse side PIN2, the resistance R518, resistance of the resistance R1406 other end and operational amplifier LM358U79A
R1405 connection, the one end resistance R1407 ground connection, the resistance R1407 other end and resistance R446, operational amplifier LM358U79A it is same
The PIN3 connection of phase end, resistance R520, resistance R518 constitute the amplification factor circuit of amplifier operational amplifier LM358U79A, wherein
The one end resistance R518 is connect with the reverse side PIN2 of operational amplifier LM358U79A, the resistance R518 other end and operational amplifier
The PIN1 output end of LM358U79A, resistance R520 connection, the PIN1, electricity of the one end resistance R520 and operational amplifier LM358U79A
R518 connection is hindered, resistance R520 is connect with the PIN4 of 8 channel modulus converter U78, resistance R517.Resistance R1405, resistance
It is added to the reverse side PIN2 of operational amplifier LM358U79A after R1406 partial pressure, is added to fortune after resistance R446, resistance R1407 partial pressure
The in-phase end PIN3 of amplifier LM358U79A is calculated, the two voltage differences are exactly the voltage that DC current passes through sampling resistor R1404
Difference, this voltage difference are sent to 8 channel mould of ADC (analog-digital converter) circuit after amplifier operational amplifier LM358U79A amplification
The PIN4 input port of number converter U78 (ADS7830IPWT), gives digital signal to data after analog-digital converter circuit
8 8-digit microcontroller U82 (W78E058DFG) of processing unit low-power consumption is calculated.
DC voltage 12V (VD12_P), resistance R448, resistance R447, resistance R445, resistance R449, resistance R514, capacitor
C693, resistance R519, resistance R521, operational amplifier LM358U80A, capacitor C691, capacitor C692, resistance R513, pressure stabilizing two
Pole pipe D80, capacitor C129, TVS diode D78, TVS diode D79, operational amplifier LM358U80B constitute system dc electricity
Pressure follows detection unit, and wherein DC voltage 12V (VD12_P) passes through resistance R448, resistance R447, resistance R445, resistance R449
Bleeder circuit divides to obtain the voltage of (0~3.3V) range, this voltage is added to operation after resistance R514, capacitor C693 and puts
The PIN3 in-phase end of big device LM358U80A, and resistance R519, resistance R521 composition follow circuit, by the electricity of (0~3.3V) range
Pressure is accurately sent to the PIN2 input port of 8 channel modulus converter U78 of ADC (analog-digital converter) circuit, by analog-to-digital conversion
Digital signal is given to 8 8-digit microcontroller U82 (W78E058DFG) of data processing unit low-power consumption after device circuit to calculate.Its
The one end middle zener diode D80 connects resistance R521, resistance R513, and other end ground connection constitutes the voltage regulator circuit for following voltage, and
The one end resistance R513 connects resistance R521, zener diode D80, the other end and connects capacitor C129, TVS diode D78,8 channels
The PIN2 of analog-digital converter U78 (ADS7830IPWT), the one end capacitor C129 ground connection, another terminating resistor R521, TVS diode
The PIN2 of D78 and 8 channel modulus converter U78 (ADS7830IPWT).The one end TVS diode D78 connects TVS diode D79,
The other end connects the PIN2 of resistance R513, capacitor C129,8 channel modulus converter U78 (ADS7830IPWT), TVS diode
D78, TVS diode D79 constitute the protrusion-dispelling wave circuit for following voltage, security restriction signal peaks.
8 8-digit microcontroller U82 (W78E058DFG) of low-power consumption, data are constituted without source crystal oscillator X5, capacitor C171, capacitor C172
Processing unit G receives the signal from analog to digital conversion circuit.
Power supply control chip MP1495U81, DC voltage 5V (VD5.0_SB), capacitor C697, resistance R524, resistance
R522, resistance R523, inductance L25, resistance R1403, resistance R1402, capacitor C695 constitute DC-DC power supply unit, put for operation
Big device LM358 operational amplifier LM358U79A, operational amplifier LM358 operational amplifier LM358U80A, operational amplifier
LM358 operational amplifier LM358U80B, 8 channel modulus converter U78 (ADS7830IPWT), 8 8-digit microcontroller U82 of low-power consumption
(W78E058DFG) DC voltage is provided.Wherein the one end capacitor C697 is grounded, other end connection DC voltage 5V (VD5.0_SB),
The PIN2 of resistance R524, resistance R522 and power supply control chip MP1495U81, capacitor C697 are the input electricity of DC-DC power supply
Hold, resistance R522, resistance R523 provide voltage, the one end inductance L25 connection electricity for the enable end of power supply control chip MP1495U81
Source controls the end PIN3 of chip MP1495U81, PIN5, the resistance R1403, capacitor of one end and power supply control chip MP1495U81
C695, DC voltage 3.3V (VD3.3_1) are connected, inductance L25 be DC-DC power supply circuit energy storage inductor, resistance R1403,
Resistance R1402 is the feedback resistance of power supply control chip MP1495U81, constitutes the feed circuit of the power supply circuit of DC-DC, obtains
Accurately output voltage, the one end capacitor C695 ground connection, the other end and inductance L25, the PIN5 of power supply control chip MP1495U81,
And resistance R1403 is connected, and is the output capacitance of DC-DC power supply circuit.
Referring to Fig. 1, a kind of one embodiment of the system dc electricity monitoring device provided in the embodiment of the present invention, the electricity
Road include DC input A, voltage follow detection unit B, DC-DC power supply unit C, current detecting unit D, load LOAD it is mono-
First E, signal ADC converting unit F, data processing unit G, remote monitoring unit I.
A kind of system dc electricity monitoring device provided by the invention, the physics for generating pressure drop by resistance according to electric current are special
Property, in conjunction with accurate amplifier and precision resistance, prison can be read by the data processor in product board by constituting one kind
The voltage value and system of DC voltage needed for control system board supply DC current values when board, in the present embodiment, pass through
Precision current, voltage sampling circuit, using ADC, using the input mode of fully differential to intelligent control chip, intelligent chip warp
It crosses and calculates adopted data, obtain the DC parameter of electrical equipment, monitor the state of electrical equipment parameters in real time, deposit at any time
Access evidence, shows data, judges the power work state of equipment, solves and sends out with system to miniaturization and integrated direction
Exhibition, power module and each integrated circuit, which are placed on one piece of circuit board and use, has reduced unnecessary do since nearby principle
Disturb, system board power supply becomes the key component of system steady operation, when board power supply debugging in system using oscillograph and
The measuring tools such as multimeter measure DC voltage, DC current, but work as these boards in cabinet, then go to monitor these electricity
With regard to highly difficult technical problem when pressure, electric current, realize complete product and facilitate monitoring DC voltage, electric current, can system just
It often does not need to tear cabinet open when work and can measure the input voltage value and current value of power module, and the optical fiber of system can be passed through
The data transmission that network obtains measurement can understand multiple to remote monitoring center, such equipment manager in a place
The state of the power supply of equipment in the distance, can also by measure obtained voltage and current value judge equipment power supply whether work
Make that there is practical significance for client or producer's maintenance system or at any time attention location system power supply in normal condition.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
The above, the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although referring to before
Stating embodiment, invention is explained in detail, those skilled in the art should understand that: it still can be to preceding
Technical solution documented by each embodiment is stated to modify or equivalent replacement of some of the technical features；And these
It modifies or replaces, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (8)
1. a kind of system dc electricity monitoring device characterized by comprising DC input A, voltage follow detection unit B,
Current detecting unit D, signal ADC converting unit F, data processing unit G, remote monitoring unit H；
The DC input A is connect with the voltage follow detection unit B, the current detecting unit D；
The voltage follow detection unit B, the current detecting unit D are connect with the signal ADC converting unit F；
The data processing unit G is connected between the signal ADC converting unit F and the remote monitoring unit H；
Wherein, DC supply input is passed through by the voltage follow detection unit B, the electric current by the DC input A
Detection unit D carries out electric signal sampling, and it is number that electric signal, which is passed through analog-to-digital conversion, using the signal ADC converting unit F
Signal, and the digital signal is input to the data processing unit G and carries out calculating determining DC parameter, so that described remote
Range monitoring unit H monitors the state of the DC parameter in real time；
Further include: DC-DC power supply unit C；
Wherein the DC-DC power supply unit C respectively with the DC input A, the voltage follow detection unit B, described
Current detecting unit D, the signal ADC converting unit F connection；
The voltage follow detection unit B includes:
DC voltage 12V, resistance R448, resistance R447, resistance R445, resistance R449, resistance R514, capacitor C693, resistance
R519, resistance R521, operational amplifier LM358U80A, capacitor C691, capacitor C692, resistance R513, zener diode D80, electricity
Hold C129, TVS diode D78, TVS diode D79, operational amplifier LM358U80B；
The one end the resistance R448 is connect with the DC voltage 12V, the resistance R448 other end and the resistance R447 mono-
End connection, the one end the resistance R449 are connect with the one end the resistance R445, the resistance R449 other end ground connection, the resistance
The R445 other end is connect with the resistance R447 other end, the one end the resistance R514, the resistance R514 other end, the electricity
Hold C693 to connect with the in-phase end PIN3 of the operational amplifier LM358U80A, the one end the resistance R519 is put with the operation
The reverse side PIN2 connection of big device LM358U80A, the resistance R519 other end and the one end the resistance R521 and the operation
The output end PIN1 connection of amplifier LM358U80A, the resistance R521 and resistance R519 composition follow circuit, described steady
The one end diode D80 is pressed to connect the resistance R521 other end, the one end the resistance R513, the zener diode D80 is another
End ground connection, the resistance R513 other end connect the capacitor C129, the one end the TVS diode D78,8 channel analog-to-digital conversions
The input port PIN2 of device U78, the one end the TVS diode D79 are connect with the TVS diode D78 other end, the TVS
Diode D79 other end ground connection, the one end the capacitor C691 is connect with DC voltage 3.3V, the one end the capacitor C692, described
Capacitor C691 other end ground connection, the capacitor C692 other end ground connection.
2. system according to claim 1 direct current monitoring device, which is characterized in that the TVS diode D78, described
TVS diode D79 constitutes the protrusion-dispelling wave circuit for following voltage.
3. system dc electricity monitoring device according to claim 2, which is characterized in that further include: load LOAD unit E；
The load LOAD unit E is connect with the DC input A.
4. system dc electricity monitoring device according to claim 3, which is characterized in that the current detecting unit D includes:
Resistance R1404, resistance R1405, resistance R446, resistance R1406, resistance R518, resistance R520, resistance R517, operational amplifier
LM358U79A, capacitor C687, capacitor C688, DC voltage 5V, DC voltage 12V, resistance R1407；
The one end the resistance R1404 connects the DC voltage 12V, the one end the resistance R1405, and the resistance R1404 is another
End connection the one end the resistance R446, load the end LOAD, the one end the resistance R1406 ground connection, the resistance R1406 other end with
The reverse side PIN2 of the operational amplifier LM358U79A, the one end the resistance R518, resistance R1405 other end connection,
The one end resistance R1407 ground connection, the resistance R1407 other end and the resistance R446 other end, the operational amplifier
The in-phase end PIN3 connection of LM358U79A, the resistance R520, the resistance R518 constitute operational amplifier described in amplifier
The amplification factor circuit of LM358U79A, the reverse side PIN2 of the one end the resistance R518 and the operational amplifier LM358U79A
The output end PIN1 of connection, the resistance R518 other end and the operational amplifier LM358U79A, the one end the resistance R520
Connection, input port PIN4, the resistance R517 mono- of the resistance R520 other end and the 8 channel modulus converter U78
End connection, the resistance R517 other end ground connection.
5. system dc electricity monitoring device according to claim 4, which is characterized in that the data processing unit G includes:
8 8-digit microcontroller U82 of low-power consumption, without source crystal oscillator X5, capacitor C171, capacitor C172；
The output end and the no source crystal oscillator X5, the one end the capacitor C171, the electricity of the 8 8-digit microcontroller U82 of low-power consumption
Hold the connection of the one end C172, the capacitor C171 other end, capacitor C172 other end ground connection.
6. system dc electricity monitoring device according to claim 5, which is characterized in that the DC-DC power supply unit C packet
It includes:
Power supply control chip MP1495U81, DC voltage 5V, capacitor C697, resistance R524, resistance R522, resistance R523, inductance
L25, resistance R1403, resistance R1402, capacitor C695；
The one end capacitor C697 ground connection, the capacitor C697 other end connect the DC voltage 5V, the resistance R524 mono-
The PIN2 at end, the one end the resistance R522 and the power supply control chip MP1495U81, the resistance R524 other end connect
The PIN1 of the power supply control chip MP1495U81 is met, the resistance R522 other end connects the power supply control chip
The one end the PIN8 of MP1495U81, the inductance L25 connects the end PIN3 of the power supply control chip MP1495U81, the inductance
PIN5, the one end the resistance R1403, the capacitor C695 mono- of the L25 other end and the power supply control chip MP1495U81
End, the DC voltage 3.3V connection, the capacitor C695 other end ground connection, the resistance R1403, the resistance R1402 are
The feedback resistance of the power supply control chip MP1495U81, the resistance R1403, the resistance R1402 constitute the confession of DC-DC
The feed circuit of circuit, PIN7, the electricity of the resistance R1403 other end and the power supply control chip MP1495U81
Hinder the connection of the one end R1402, the resistance R1402 other end ground connection；
The one end the resistance R523 connects the PIN8 of the power supply control chip MP1495U81, other end ground connection.
7. system dc electricity monitoring device according to claim 6, which is characterized in that the DC-DC power supply unit C is used to
For the operational amplifier LM358U79A, the operational amplifier LM358U80A, the operational amplifier LM358U80B, institute
It states 8 channel modulus converter U78,8 8-digit microcontroller U82 of the low-power consumption and DC voltage is provided.
8. system dc electricity monitoring device according to claim 7, which is characterized in that the 8 channel modulus converter U78
Output end connected by the input terminal of the 8 8-digit microcontroller U82 of the low-power consumption of digital signal and the data processing unit G
It connects.
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| CN201611177721.5A CN106771536B (en) | 2016-12-19 | 2016-12-19 | A kind of system dc electricity monitoring device |
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| CN201611177721.5A CN106771536B (en) | 2016-12-19 | 2016-12-19 | A kind of system dc electricity monitoring device |
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| CN106771536B true CN106771536B (en) | 2019-10-11 |
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| CN102097858B (en) * | 2010-05-21 | 2013-03-13 | 湖南师范大学 | Mixed direct-current power system for large LED display screen |
| CN202600025U (en) * | 2012-05-31 | 2012-12-12 | 广东电网公司中山供电局 | Scalable vector graphics (SVG) power unit body direct current voltage detection circuit |
| CN203275613U (en) * | 2013-05-23 | 2013-11-06 | 华晶精密制造有限公司 | Data acquisition port for DC power hardware |
| CN105676043A (en) * | 2016-03-31 | 2016-06-15 | 杭州威锐孚源科技有限公司 | Intelligent electric parameter tester and control method thereof |
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Effective date of registration: 20240426 Address after: Building 3, Block A3-2/01, Zone A, Dashiba Cluster, Jiangbei District, Chongqing, 400000, Office 9 Patentee after: Chongqing Guangyi Yunqi Technology Co.,Ltd. Country or region after: China Address before: 233 Kezhu Road, Guangzhou hi tech Industrial Development Zone, Guangdong 510670 Patentee before: VTRON TECHNOLOGIES Ltd. Country or region before: China |