CN209247874U - A kind of combined-voltage detection device applied to distribution secondary device - Google Patents
A kind of combined-voltage detection device applied to distribution secondary device Download PDFInfo
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- CN209247874U CN209247874U CN201821697715.7U CN201821697715U CN209247874U CN 209247874 U CN209247874 U CN 209247874U CN 201821697715 U CN201821697715 U CN 201821697715U CN 209247874 U CN209247874 U CN 209247874U
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Abstract
The utility model provides a kind of combined-voltage detection device applied to distribution secondary device, wherein the device includes: decompression component, voltage acquisition component, processing component and output block；Decompression component is electrically connected with voltage acquisition component, and voltage acquisition component is electrically connected with processing component, and processing component is electrically connected with output block；Decompression component is used to detected voltage signal carrying out decompression processing, will be sent to voltage acquisition component by the voltage signal of decompression processing；The voltage signal received is converted digital signal by voltage acquisition component, and digital signal is sent to processing component；Processing component carries out calculating analysis to the digital signal received, obtains the alternating current-direct current situation and actual voltage value that are detected voltage signal, the alternating current-direct current situation and actual voltage value of detected voltage signal are sent to output block；Output block is used to export the alternating current-direct current situation and actual voltage value of the detected voltage signal.In this way, improving the safety of voltage measurement.
Description
Technical field
The utility model relates to voltage detecting technical field, in particular to a kind of applied to distribution secondary device
Combined-voltage detection device.
Background technique
Secondary device, which refers to, to be controlled primary equipment (used equipment on hair, defeated, distribution main system), is protected
Shield, supervision and measurement equipment, such as measuring instrumentss, relay, Operation switch, button and automatic control equipment, computer,
It controls cable and some power supply units (such as battery, silicon rectifier) of these equipment energy is provided
The secondary device of distribution, the voltage for automating busbar and various parts in (switch) cabinet are different from, therefore
When carrying out voltage detecting using secondary device of the conventional multimeter to distribution, multiple regulation stall is needed just to be able to achieve to distribution
Secondary device carry out voltage detecting, but there are gear selection risk of errors during regulation stall, and gear selection mistake can
Multimeter can be burnt.
When routine use multimeter surveys voltage, needs us first to carry out the judgement of voltage alternating current-direct current, then selected
Select suitable gear.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of combined-voltage inspections applied to distribution secondary device
Device is surveyed, to improve the safety and efficiency of voltage measurement.
In a first aspect, the utility model embodiment provides a kind of combined-voltage detection applied to distribution secondary device
Device, comprising: decompression component, voltage acquisition component, processing component and output block；
The decompression component is electrically connected with the voltage acquisition component, the voltage acquisition component and processing component electricity
Connection, the processing component are electrically connected with the output block；
The decompression component is used to detected voltage signal carrying out decompression processing, then will be by decompression treated electricity
Pressure signal is sent to the voltage acquisition component；
The voltage signal received is converted digital signal by the voltage acquisition component, then believes the number
Number it is sent to the processing component；
The processing component carries out calculating analysis to the digital signal received, obtains the friendship for being detected voltage signal
DC case and actual voltage value, and the alternating current-direct current situation of the detected voltage signal and actual voltage value are sent to output
Component；
The output block is used to export the alternating current-direct current situation and actual voltage value of the detected voltage signal.
With reference to first aspect, the utility model embodiment provides the first possible embodiment of first aspect,
In, the decompression component includes: reduction voltage circuit and filter circuit；The reduction voltage circuit is connected with the filter circuit, described
Reduction voltage circuit is used to carry out the voltage signal to be detected decompression processing, and the filter circuit is used for the voltage after decompression
Signal carries out filtering out higher hamonic wave.
The possible embodiment of with reference to first aspect the first, the utility model embodiment provide the of first aspect
Two kinds of possible embodiments, wherein the voltage acquisition component includes: analog to digital conversion circuit, for acquiring filtered electricity
Signal is pressed, and collected filtered voltage signal is converted into digital signal, by the digital data transmission to the place
Manage component.
With reference to first aspect, the utility model embodiment provides the third possible embodiment of first aspect,
In, the processing component, comprising: microprocessor judges to be detected voltage signal for variation according to the digital signal
Alternating current-direct current situation；The digital signal is constant within a preset time, then being detected voltage signal is DC voltage；The number letter
Generating period changes number within a preset time, then being detected voltage signal is alternating voltage.
The third possible embodiment with reference to first aspect, the utility model embodiment provide the of first aspect
Four kinds of possible embodiments, wherein the microprocessor is also used to: according to the alternating current-direct current situation meter of detected voltage signal
Calculate the actual voltage value of the detected voltage signal；
Average value is calculated to the digital signal of the DC voltage and obtains the actual voltage value of the DC voltage；
It takes absolute value to the digital signal of the alternating voltage, the average value for calculating absolute value obtains the alternating voltage
Actual voltage value.
With reference to first aspect, the utility model embodiment provides the 5th kind of possible embodiment of first aspect,
In, the output block, comprising: display unit, for showing the alternating current-direct current situation of the detected voltage signal received
And actual voltage value.
With reference to first aspect, the utility model embodiment provides the 6th kind of possible embodiment of first aspect,
In, the output block, further includes: voice broadcast unit, for the alternating current-direct current to the detected voltage signal received
Situation and actual voltage value carry out voice broadcast.
With reference to first aspect, the utility model embodiment provides the 7th kind of possible embodiment of first aspect,
In, the processing component is also used to: according to the frequency of the alternating current-direct current situation of the detected voltage signal of output and actual voltage value
Rate controls the output block and exports the alternating current-direct current situation of the detected voltage signal and the frequency of actual voltage value.
A kind of combined-voltage detection device applied to distribution secondary device provided by the embodiment of the utility model uses
Measured voltage is converted into digital signal, and the alternating current-direct current feelings that calculation processing directly obtains the measured voltage are carried out to digital signal
Condition and actual voltage value first judge the alternating current-direct current situation of voltage, so in the prior art when carrying out voltage measurement
It is compared afterwards in the selection for carrying out suitable gear, the safety of measurement is higher, reduces since gear selection mistake leads to general-purpose
A possibility that table is burnt, and improve measurement efficiency.
To enable the above objects, features, and advantages of the utility model to be clearer and more comprehensible, preferred embodiment is cited below particularly, and
Cooperate appended attached drawing, is described in detail below.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 shows a kind of combined-voltage inspection applied to distribution secondary device provided by the utility model embodiment
Survey the structural schematic diagram of device；
Fig. 2 shows a kind of structural schematic diagrams for being depressured component provided by the utility model embodiment；
Fig. 3 shows a kind of structural schematic diagram of voltage acquisition component provided by the utility model embodiment；
Fig. 4 shows a kind of structural schematic diagram of output block provided by the utility model embodiment.
Main element symbol description: 10- is detected voltage signal；20- is by decompression treated voltage signal；30- number
Word signal；101- is depressured component；102- voltage acquisition component；103- processing component；104- output block；201- reduction voltage circuit；
202- filter circuit；301- voltage storage cell；302- analog to digital conversion circuit；401- display unit；402- voice broadcast unit.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that described
Embodiment be only the utility model a part of the embodiment, instead of all the embodiments.Usually described in attached drawing here
It can arrange and design with a variety of different configurations with the component of the utility model embodiment shown.Therefore, below to
The detailed description of the embodiments of the present invention provided in attached drawing is not intended to limit the model of claimed invention
It encloses, but is merely representative of the selected embodiment of the utility model.Based on the embodiments of the present invention, those skilled in the art exist
Every other embodiment obtained under the premise of creative work is not made, is fallen within the protection scope of the utility model.
To be applied to distribution to one kind disclosed in the utility model embodiment first convenient for understanding the present embodiment
The combined-voltage detection device introduction of secondary device, as shown in Figure 1, providing one kind in the utility model embodiment and being applied to
The combined-voltage detection device of distribution secondary device, comprising: decompression component 101, voltage acquisition component 102, processing component 103
With output block 104.
Decompression component 101 is electrically connected with voltage acquisition component 102, and voltage acquisition component 102 is electrically connected with processing component 103
It connects, processing component 103 is electrically connected with output block 104.
Decompression component 101 is used to detected voltage signal 10 carrying out decompression processing, and then passing through decompression, treated
Voltage signal 20 is sent to voltage acquisition component 102.
The voltage signal 20 received is converted digital signal 30 by voltage acquisition component 102, then believes the number
Numbers 30 are sent to the processing component 103.
Processing component 103 carries out calculating analysis to the digital signal 30 received, obtains the friendship for being detected voltage signal 10
DC case and actual voltage value, and the alternating current-direct current situation of detected voltage signal 10 and actual voltage value are sent to output section
Part 104.
Output block 104 is used to export the alternating current-direct current situation and actual voltage value of detected voltage signal 10.
In the present embodiment, by the way that detected voltage signal 10 is converted to digital signal 30, and digital signal 30 is carried out
Calculation processing directly obtains the alternating current-direct current situation and actual voltage value of the measured voltage, avoids and needs in the prior art manually in advance
First the alternating current-direct current situation of voltage is judged, then carries out safety brought by the selection measurement voltage of suitable gear again
The problem of low, low efficiency, so that the safety of measurement is higher, and improves measurement efficiency.
Fig. 2 shows a kind of structural schematic diagrams for being depressured component provided by the utility model one embodiment, referring to Fig. 2 institute
Show, in one optional embodiment of the application, decompression component 101 includes:
Reduction voltage circuit 201 and filter circuit 202；Reduction voltage circuit 201 is connected with filter circuit 202, and reduction voltage circuit 201 is used
In carrying out decompression processing to voltage signal 10 to be detected, filter circuit 202 is for filtering out the voltage signal after decompression
Higher hamonic wave.
Illustratively, above-mentioned reduction voltage circuit 201 can be Hall element or circuit；Above-mentioned filter circuit 202 is generally
Low-pass filter or low-pass filter circuit.
Illustratively, above-mentioned detected voltage signal 10 passes through reduction voltage circuit 201, and reduction voltage circuit 201 is by voltage according to one
Fixed ratio reduces, and the voltage signal after decompression is enabled to reach the collection voltages standard of general power electronic chip,
Since the peak of measurement electric voltage frequency is 50Hz, need the voltage signal after being depressured is (low by filter circuit 202
Bandpass filter/low-pass filter circuit) after filter out high voltage in voltage signal, thus the voltage signal 20 after being depressured.
Above-mentioned to refer to according to a certain percentage: the ceiling voltage for being detected voltage signal is 250 volts, is filtered by decompression
Voltage signal afterwards is within 5 volts, then the ratio is 50 times, if being detected voltage signal is less than or equal to 250 volts, according to 50
Ratio again is depressured；If being detected voltage signal is greater than 250 volts, increase decompression ratio according to voltage signal is detected.
Specifically, referring to shown in Fig. 3, a kind of structure of voltage acquisition component provided by another embodiment of the utility model
Schematic diagram, the voltage acquisition component provided in one embodiment of the application, further includes: analog to digital conversion circuit 302, voltage storage cell
301。
Analog to digital conversion circuit 302, it is filtered for acquiring filtered voltage signal for acquiring, and will be collected
Filtered voltage signal is converted to digital signal 30, and digital signal 30 is transmitted to processing component 103.
Voltage storage cell 301, for storing in a period of time by the decompression decompression of component 101 treated voltage signal
20, and will treated that voltage signal 20 is transferred to analog to digital conversion circuit by decompression.
The effect of above-mentioned voltage storage cell 301 are as follows: when analog to digital conversion circuit is to previous moment decompression treated voltage
When signal 20 carries out analog-to-digital conversion, decompression treated voltage signal 20 that storage current time transmission comes.
Illustratively, above-mentioned voltage storage cell 301 will by decompression component 101 decompression treated voltage signal 20 into
Row storage, then by the decompression, treated that voltage signal 20 is transferred to analog to digital conversion circuit 302 again, thus when realizing this section
Between decompression treated that voltage signal 20 is converted into digital signal 30.
In one optional embodiment of the application, above-mentioned processing component, comprising: microprocessor, for according to digital signal 30
Variation judge the alternating current-direct current situation for being detected voltage signal 10, specifically, if digital signal 30 is constant within a preset time,
Then being detected voltage signal 10 is DC voltage；If generating period changes digital signal 30 within a preset time, it is detected
Survey voltage signal 10 is alternating voltage.
Above-mentioned microprocessor can have the chip of calculation processing power for 51 single-chip microcontrollers etc..
Illustratively, above-mentioned microprocessor acquires the frequency of digital signal 30 by control voltage acquisition component 103, thus
One group of Wave data for being detected voltage signal 10 is obtained, the change for being detected the Wave data of voltage signal 10 by observing the group
Change situation, obtains the alternating current-direct current situation for being detected voltage signal 10；When the waveform number for observing the detected voltage signal 10 of the group
According to generating period variation when, then this be detected voltage signal 10 be ac voltage signal；When observe the group be detected electricity
Press signal 10 Wave data there is no variation when, then this be detected voltage signal 10 be d. c. voltage signal.
In one optional embodiment of the application, above-mentioned microprocessor is also used to: the friendship according to detected voltage signal 10 is straight
It flows situation and calculates the actual voltage value for being detected voltage signal 10；Average value is calculated to the digital signal 30 of DC voltage, is obtained
The actual voltage value of DC voltage；It takes absolute value to the digital signal 30 of alternating voltage, the average value for calculating absolute value is handed over
The actual voltage value of galvanic electricity pressure.
It should be noted that above-mentioned microprocessor carries out obtaining the alternating current-direct current situation and virtual voltage for being detected voltage signal
The process of value can be realized by simple program in the prior art.
In the present embodiment, the above-mentioned situation of change for being detected the Wave data of voltage signal 10 according to the group is observed is obtained
After being detected the alternating current-direct current situation of voltage signal 10, the calculating that voltage signal 10 carries out actual voltage value need to be detected to the group；
When it is d. c. voltage signal that the group, which is detected voltage signal, average value is calculated by the digital signal 30 to DC voltage and is obtained
The actual voltage value of DC voltage；When it is ac voltage signal that the group, which is detected voltage signal, pass through the number to alternating voltage
Word signal 30 takes absolute value, and the average value for calculating absolute value obtains the actual voltage value of alternating voltage.
In the present embodiment, calculate at analysis by voltage waveform data of the microprocessor to detected voltage signal
Reason, to intuitively obtain the alternating current-direct current situation and actual voltage value that are detected voltage signal, which does not need artificially to go to sentence
Disconnected and calculating, to improve the accuracy of judgement and calculating.
Fig. 4 shows a kind of structural schematic diagram of output block provided by another embodiment of the utility model, referring to Fig. 4
A kind of output block that is shown, being provided in one embodiment of the application, comprising: display unit 401, voice broadcast unit 402；
Above-mentioned display unit 401, for showing the alternating current-direct current situation and reality electricity of the detected voltage signal 10 received
Pressure value.
Specific above-mentioned display unit is digital display screen.
Above-mentioned voice broadcast unit 402, for the alternating current-direct current situation and reality to the detected voltage signal 10 received
Voltage value carries out voice broadcast.
Specific above-mentioned voice broadcast unit is loudspeaker.
In one optional embodiment of the application, above-mentioned processing component is also used to: according to the detected voltage signal 10 of output
Alternating current-direct current situation and actual voltage value frequency, control the output block export the detected voltage signal 10 friendship it is straight
Flow the frequency of situation and actual voltage value.
Illustratively, processing component 103 exports the alternating current-direct current situation for being detected voltage signal 10 and practical electricity by control
The frequency of pressure value, so that controlling display unit 401 shows the alternating current-direct current situation and actual voltage value for being detected voltage signal 10
Frequency and voice broadcast unit 402 broadcast the frequency of the alternating current-direct current situation and actual voltage value that are detected voltage signal 10, so that
The frequency of the two is consistent, realizes the alternating current-direct current situation of display and casting and actual voltage value is that current time microprocessor is counted
Calculate the result of processing.
In the present embodiment, the alternating current-direct current situation and reality to measured voltage signal 10 are carried out by voice broadcast unit 402
Voltage value is broadcasted, and realizes the alternating current-direct current situation and virtual voltage that measured voltage signal 10 can not only be watched by screen
Value, moreover it is possible to the alternating current-direct current situation and actual voltage value of measured voltage signal 10 are heard when being inconvenient to watch screen.
Based on above-mentioned analysis it is found that compared with combined-voltage detection device in the related technology, the utility model is implemented
The combined-voltage detection device applied to distribution secondary device that example provides, which is utilized, is converted into digital signal measured voltage, right
Digital signal carries out the alternating current-direct current situation and actual voltage value that calculation processing directly obtains the measured voltage, and measured voltage
Alternating current-direct current situation and actual voltage value carry out display and voice broadcast, do not need first to judge the alternating current-direct current situation of voltage,
Then reduce so that the safety of measurement is higher since gear selection mistake leads to general-purpose in the selection for carrying out suitable gear
A possibility that table is burnt improves measurement efficiency, and realizes the friendship that can not only watch measured voltage signal by screen
DC case and actual voltage value, moreover it is possible to the alternating current-direct current situation and reality of measured voltage signal are heard when being inconvenient to watch screen
Voltage value.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, or
The utility model product using when the orientation or positional relationship usually put, be merely for convenience of description the utility model and letter
Change description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific orientation construct and
Operation, therefore should not be understood as limiting the present invention.In addition, term " first ", " second ", " third " etc. are only used for area
Divide description, is not understood to indicate or imply relative importance.
In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, term " is set
Set ", " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection,
Or it is integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, intermediary can also be passed through
It is indirectly connected, can be the connection inside two elements.For the ordinary skill in the art, it can be managed with concrete condition
Solve the concrete meaning of above-mentioned term in the present invention.
Finally, it should be noted that embodiment described above, only specific embodiment of the present utility model, to illustrate this
The technical solution of utility model, rather than its limitations, the protection scope of the utility model is not limited thereto, although referring to aforementioned
The utility model is described in detail in embodiment, those skilled in the art should understand that: it is any to be familiar with this skill
The technical staff in art field within the technical scope disclosed by the utility model, still can be to skill documented by previous embodiment
Art scheme modify or can readily occur in variation or equivalent replacement of some of the technical features；And these modifications,
Variation or replacement, the spirit and model of the utility model embodiment technical solution that it does not separate the essence of the corresponding technical solution
It encloses.It should be covered within the scope of the utility model.Therefore, the protection scope of the utility model is answered described is wanted with right
Subject to the protection scope asked.
Claims (8)
1. a kind of combined-voltage detection device applied to distribution secondary device characterized by comprising decompression component, electricity
Press acquisition component, processing component and output block；
The decompression component is electrically connected with the voltage acquisition component, and the voltage acquisition component is electrically connected with the processing component
It connects, the processing component is electrically connected with the output block；
The decompression component is used to detected voltage signal carrying out decompression processing, then will be by decompression treated voltage letter
Number it is sent to the voltage acquisition component；
The voltage signal received is converted digital signal by the voltage acquisition component, then sends out the digital signal
It send to the processing component；
The processing component carries out calculating analysis to the digital signal received, obtains the alternating current-direct current for being detected voltage signal
Situation and actual voltage value, and the alternating current-direct current situation of the detected voltage signal and actual voltage value are sent to output section
Part；
The output block is used to export the alternating current-direct current situation and actual voltage value of the detected voltage signal.
2. the apparatus according to claim 1, which is characterized in that the decompression component includes: reduction voltage circuit and filter circuit；
The reduction voltage circuit is connected with the filter circuit, and the reduction voltage circuit is for dropping the voltage signal to be detected
Pressure processing, the filter circuit is for carrying out the voltage signal after decompression to filter out higher hamonic wave.
3. the apparatus of claim 2, which is characterized in that the voltage acquisition component includes: analog to digital conversion circuit, is used
In the filtered voltage signal of acquisition, and collected filtered voltage signal is converted into digital signal, by the number
Signal is transmitted to the processing component.
4. the apparatus according to claim 1, which is characterized in that the processing component, comprising: microprocessor is used for basis
The variation of the digital signal judges the alternating current-direct current situation for being detected voltage signal；The digital signal is within a preset time not
Become, being then detected voltage signal is DC voltage；Generating period changes the digital signal within a preset time, then is detected
Voltage signal is alternating voltage.
5. device according to claim 4, which is characterized in that the microprocessor is also used to: being believed according to detected voltage
Number alternating current-direct current situation calculate the actual voltage value of the detected voltage signal；
Average value is calculated to the digital signal of the DC voltage and obtains the actual voltage value of the DC voltage；
It takes absolute value to the digital signal of the alternating voltage, the average value for calculating absolute value obtains the reality of the alternating voltage
Voltage value.
6. the apparatus according to claim 1, which is characterized in that the output block, comprising: display unit, for showing
The alternating current-direct current situation and actual voltage value of the detected voltage signal received.
7. the apparatus according to claim 1, which is characterized in that the output block, further includes: voice broadcast unit is used
In alternating current-direct current situation and actual voltage value progress voice broadcast to the detected voltage signal received.
8. the apparatus according to claim 1, which is characterized in that the processing component is also used to: according to being detected for output
The alternating current-direct current situation of voltage signal and the frequency of actual voltage value control the output block and export the detected voltage signal
Alternating current-direct current situation and actual voltage value frequency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821697715.7U CN209247874U (en) | 2018-10-19 | 2018-10-19 | A kind of combined-voltage detection device applied to distribution secondary device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821697715.7U CN209247874U (en) | 2018-10-19 | 2018-10-19 | A kind of combined-voltage detection device applied to distribution secondary device |
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| CN209247874U true CN209247874U (en) | 2019-08-13 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112051439A (en) * | 2020-08-28 | 2020-12-08 | 广东电网有限责任公司惠州供电局 | Voltage measuring instrument |
| CN112098705A (en) * | 2020-09-17 | 2020-12-18 | 株洲中车时代电气股份有限公司 | System and method for rapidly identifying AC/DC power supply system |
-
2018
- 2018-10-19 CN CN201821697715.7U patent/CN209247874U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112051439A (en) * | 2020-08-28 | 2020-12-08 | 广东电网有限责任公司惠州供电局 | Voltage measuring instrument |
| CN112098705A (en) * | 2020-09-17 | 2020-12-18 | 株洲中车时代电气股份有限公司 | System and method for rapidly identifying AC/DC power supply system |
| CN112098705B (en) * | 2020-09-17 | 2021-10-26 | 株洲中车时代电气股份有限公司 | System and method for rapidly identifying AC/DC power supply system |
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