CN101614758A - Electronic indicator - Google Patents
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- CN101614758A CN101614758A CN200810180953A CN200810180953A CN101614758A CN 101614758 A CN101614758 A CN 101614758A CN 200810180953 A CN200810180953 A CN 200810180953A CN 200810180953 A CN200810180953 A CN 200810180953A CN 101614758 A CN101614758 A CN 101614758A
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Abstract
The invention provides a kind of electronic indicator, its electric parameter that can simplify three-phase circuit monitors operation, and price is low and identity is good, and sets easily.This electronic indicator has: 3 digital display parts; Digital control portion, it will be used to carry out the digital demonstration key element that shows and export 3 digital display parts to; The bar chart display part; And bar chart control part, it will be used to carry out the demonstration key element that bar chart shows and export the bar chart display part to, from digital control respectively when the demonstration key element of 3 digital display parts inputs all be identical demonstration key element, export the demonstration key element of stipulating from the bar chart control part.
Description
Technical field
The present invention relates to a kind of electronic indicator, to the voltage and current of its input three-phase circuit, based on above-mentioned voltage and current, computing also shows the electric parameters such as voltage, electric current, power, reactance capacity, power factor and frequency of three-phase circuit.
Background technology
At present, for electronic indicator following technology has been proposed, voltage, electric current to its input circuit, the electric parameter that will calculate based on this voltage and current, be presented at 1 digital display part and 1 bar chart display part on the two, thereby take into account the intuitive monitoring (for example, with reference to patent documentation 1) that the direct numerical value that utilizes digital value to carry out monitors and utilizes the bar chart demonstration to carry out.
Patent documentation 1: the spy open flat 8-136281 communique (the 6th page, Fig. 1)
Summary of the invention
Existing electronic indicator, only have 1 digital display part and 1 bar chart display part, for example be used under the situation of three-phase circuit, when showing the electric parameters such as voltage, electric current, power, reactance capacity and power factor of three-phase circuit mutually, very loaded down with trivial details to the operation that the electric parameter that shows in the electric parameter that shows in the digital display part and the bar chart display part switches at each.
As eliminating one of loaded down with trivial details countermeasure of aforesaid operations, a plurality of digital display parts can be set, but in the case, if a plurality of bar chart display parts corresponding with a plurality of digital display parts are set, then there is following problem, the space that is used for this display part becomes big and price uprises, and perhaps, shown bar chart or digital value diminish and make that showing becomes is difficult to observe.
In addition, as another countermeasure, can 1 bar chart display part be set at a plurality of digital display parts, but in the case, owing to be to be presented in a plurality of demonstration key elements a plurality of digital display parts from numeral to select 1, only show that to corresponding with this demonstration key element of selecting 1 key element carries out bar chart and show, so can only monitor the state of 1 phase of three-phase circuit by bar chart, must show mutually by switching each, still have the loaded down with trivial details problem of operation that monitors.
The present invention proposes in order to solve the problems referred to above in the existing apparatus, and its purpose is to provide a kind of electronic indicator, and its electric parameter that can simplify three-phase circuit monitors operation, and price is low and identity is good, and sets easily.
Electronic indicator involved in the present invention has: measure operational part, it is transfused to the voltage and current as the three-phase circuit of measured circuit, based on the voltage and current of described input, and the electric parameter of the described three-phase circuit of computing; Digital control portion, it is exported as being used to carry out the demonstration key element that numeral shows any at least 1 in described voltage, described electric current and the described electric parameter; 3 digital display parts, it is transfused to the described demonstration key element from described digital control output, and these demonstration key elements are carried out the numeral demonstration respectively; The bar chart control part, it is exported as being used to carry out the demonstration key element that bar chart shows any at least 1 in described voltage, electric current and the electric parameter; And bar chart display part, it is transfused to from the described demonstration key element of described bar chart control part output, and this demonstration key element is carried out bar chart show, from described digital control respectively to described 3 digital display parts input to be used for described demonstration key element that described numeral shows all be identical demonstration key element the time, the demonstration key element of described bar chart control part output regulation is as being used for the described demonstration key element that described bar chart shows.
The effect of invention
According to electronic indicator involved in the present invention, from digital control respectively to 3 digital display parts inputs to be used for demonstration key element that numeral shows all be identical demonstration key element the time, the demonstration key element that the bar chart control part will be stipulated is exported as the demonstration key element that is used for the bar chart demonstration, so show under the identical situation of key elements at 3 that are used for the numeral demonstration, can the mean value of each phase in the key element will should be shown, the summation of each phase, the maximal value of each phase and minimum value etc., and the demonstration key element of expectation, carrying out bar chart in 1 bar chart display part shows, make the electric parameter of three-phase circuit monitor the operation simplification, price is low and identity is good, and sets easily.
Description of drawings
Fig. 1 is the block diagram of the related electronic indicator of expression embodiments of the present invention 1.
Fig. 2 is the process flow diagrams that bar chart output is judged when measuring of three-phase 3 line circuits in the related electronic indicator of embodiments of the present invention 1.
Fig. 3 is the process flow diagram that bar chart output is judged when measuring of the three-phase 4-wire circuit in the related electronic indicator of embodiments of the present invention 1.
Fig. 4 is the process flow diagram that the bar chart output of the related electronic indicator of embodiments of the present invention 2 is judged.
Fig. 5 is the block diagram of the related electronic indicator of expression embodiments of the present invention 3.
Fig. 6 is the process flow diagram that the bar chart output of the related electronic indicator of embodiments of the present invention 3 is judged.
Embodiment
Embodiment 1
Fig. 1 is the block diagram of the related electronic indicator of expression embodiments of the present invention 1.In Fig. 1, the three-phase 3 line formula circuit (below, abbreviate " three-phase circuit " as) 50 that power supply (not shown) carries out wiring in the Δ mode are made of conductor R, conductor S and conductor T, are the measuring objects of the various electric parameters of electronic indicator 100 computing aftermentioneds.Electronic indicator 100 has measures operational part 1, digital control 2, bar chart control part 3, operating portion 4, setting value storage 5,3 digital display parts 6 of control part and 1 bar chart display part 7, wherein, above-mentioned 3 digital display parts 6 are made of digital epimere display part 61, digital stage casing display part 62 and digital hypomere display part 63.
For measuring operational part 1, its input terminal respectively with the conductor R of three-phase circuit 50, conductor S is connected with conductor T, import RS phase voltage and ST phase voltage respectively, and R phase current and T phase current, this measures operational part 1 based on above-mentioned voltage and electric current, according to the aftermentioned setting value of setting in the setting value storage control part 5, computing TR phase voltage, the S phase current, the voltage effective value of each phase, the current effective value of each phase, general power, total reactance capacity, total applied power and total power factor, and be that electric parameter inputs to digital control 2 and bar chart control part 3 with its operation result.
Setting value storage control part 5 exports phase line form setting value 501 in the setting value of above-mentioned storage and bar chart display setting value 502 to bar chart control part 3, exports displaying contents setting value 503 to digital control 2.Here, phase line form setting value 501, bar chart display setting value 502 and displaying contents setting value 503 comprise numerical value or numerical value setting content in addition.
From measuring operational part 1 to digital control 2 input electric parameter, this electric parameter is by inputing to the voltage and current of measuring operational part 1, and by the voltage effective value of measuring each phase that operational part 1 calculates, the current effective value of each phase, general power, total reactance capacity, total applied power and total power factor constitute, this digital control 2 based on utilized operating portion 4 to set and be stored in displaying contents setting value 503 in the setting value storage control part 5 by operating personnel, will be from the electric parameter of input the electric parameter that select carry out the demonstration key element that numeral shows and export by aftermentioned numeral display part 6 as being used for, this digital control 2 has digital epimere control part 201, numeral stage casing control part 202 and digital hypomere control part 203.
For bar chart control part 3, store the phase line form setting value 501 and the bar chart display setting value 502 of control part 5 outputs from the above-mentioned electric parameter of measurement operational part 1 output, from setting value to its input, simultaneously, also to its input from the output of digital control 2 digital epimere control part 201, digital stage casing control part 202 and digital hypomere control part 203, and output is used for carrying out the demonstration key element that bar chart shows by aftermentioned bar chart display part 7.
Numeral epimere display part 61, digital stage casing display part 62 and digital hypomere display part 63, corresponding with digital control 2 digital epimere control part 201, digital stage casing control part 202 and digital hypomere control part 203 respectively and be provided with, the conduct from digital epimere control part 201, digital stage casing control part 202 and 203 outputs of digital hypomere control part is respectively shown that the electric parameter of key element carries out numeral demonstration.Bar chart display part 7 will show the electric parameter of key element from the conduct of bar chart control part 3 outputs, utilize bar chart to simulate demonstration.
Below, action is described.Three-phase circuit 50 is three-phase 3 line formulas in the present embodiment, and operating personnel utilize operating portion 4 that the phase line form is set at three-phase 3 line formulas, and this setting value is stored in the setting value storage control part 5 as phase line form setting value 501.Measure operational part 1 according to the phase line form setting value 501 that is stored in the setting value storage control part 5, based on RS phase voltage and ST phase voltage and R phase current and T phase current from three-phase circuit 50 inputs, obtain the value of TR phase voltage and the value of S phase current by computing, simultaneously, obtain the voltage effective value of each phase, current effective value, general power, total reactance capacity, total applied power and the total power factor of each phase by computing.
With inputing to the value of the voltage and current of measuring operational part 1 and the above-mentioned electric parameter that calculates, export digital control 2 to and bar chart control part 3.Digital control 2 information that obtains based on displaying contents setting value 503 from setting value storage control part 5, be chosen in the electric parameter that shows on corresponding digital epimere display part 61, digital stage casing display part 62 and the digital hypomere display part 63 respectively, export as the demonstration key element from digital epimere control part 201, digital stage casing control part 202 and digital hypomere control part 203 respectively.To digital epimere display part 61, digital stage casing display part 62 and digital hypomere display part 63, import respectively from the demonstration key element separately of the digital epimere control part 201 of correspondence, digital stage casing control part 202 and 203 outputs of digital hypomere control part, and these demonstration key elements are carried out the numeral demonstration.
Under the situation of present embodiment 1, for example, numeral epimere control part 201 carries out numeral as showing key element output by 61 pairs of these values of digital epimere display part with the value of RS phase voltage and shows, numeral stage casing control part 202 carries out numeral as showing key element output by 62 pairs of these values of digital stage casing display part with the value of ST phase voltage and shows, digital hypomere control part 203 carries out numeral as showing key element output by 63 pairs of these values of digital hypomere display part with the value of TR phase voltage and shows.
In addition, operation by operating portion 4, can at random set the displaying contents setting value of setting value storage control part 5, so that digital epimere control part 201, the value of certain 1 or 2 some phase voltage of output in numeral stage casing control part 202 and the digital hypomere control part 203, and the value of other 2 or 1 some phase current of output, in the case, numeral epimere display part 61, numeral stage casing display part 62 and digital hypomere display part 63, with from digital control 2 the input above-mentioned demonstration key element accordingly, carry out numeral by certain 1 or 2 values and show, and 2 or 1 value to some phase current are carried out numeral demonstration in addition some phase voltage.
In addition, to when the demonstration key element of above-mentioned digital control 2 output is carried out numeral demonstration, bar chart control part 3 is based on the phase line form setting value 501 of setting value storage control part 5 and the output of bar chart display setting value 502, and from digital control 2 digital epimere control part 201, the output relevant of numeral stage casing control part 202 and digital hypomere control part 203 with each digital displaying contents, select the regulation electric parameter from the electric parameter of measuring operational part 1 input as described later, this electric parameter of selecting is exported as being used to carry out the demonstration key element that bar chart shows.Bar chart display part 7 utilizes bar chart to simulating demonstration from the demonstration key element of bar chart control part 3 outputs.
Fig. 2 is that the phase line form setting value 501 in will being stored in setting value storage control part 5 is set under the situation of three-phase 3 line formulas the process flow diagram that the output of the bar chart of bar chart control part 3 is judged.This processing is carried out repeatedly with specific time interval.Among Fig. 2,, judge the blocked operation that whether has carried out digital demonstration, under the situation of the blocked operation that digital demonstration has taken place, become "Yes" and enter step S112 by operating portion 4 at step S111.If do not switch operation, then become "No" and end process.In step S112, at first the demonstration key element from digital epimere control part 201, digital stage casing control part 202 and 203 outputs of digital hypomere control part is compared, judges.
If digital epimere control part 201, digital stage casing control part 202 and digital hypomere control part 203 are not to show that all key element all is a voltage or show that all key element all is an electric current, then the result of determination of step S112 becomes "No" and enters step S113, the electric parameter that to select based on the bar chart display setting value 502 that is stored in the setting value storage control part 5 exports also end process of bar chart display part 7 to as being used to carry out the demonstration key element that bar chart shows.The demonstration key element of 7 pairs of these outputs of bar chart display part is that electric parameter carries out the bar chart demonstration.On the other hand, if show that all key element all is a voltage or show that all key element all is an electric current, then the result of determination of step S112 becomes "Yes" and enters step S114, is that voltage or electric current compare, judge to this demonstration key element.
Showing that all key element all is under the situation of electric current, the result of determination of step S114 becomes "No" and enters step S115.In step S115, the value of the S phase current that bar chart control part 3 will calculate based on the value of value that inputs to the R phase current of measuring operational part 1 and T phase current is as being used to carry out output of demonstration key element and the end process that bar chart shows.Bar chart display part 7 shows that to the conduct from 3 inputs of bar chart control part the value of the S phase current of key element simulates demonstration by bar chart.
Showing that all key element all is under the voltage condition, the result of determination of step S114 becomes "Yes" and enters step S116.In step S116, the value of the TR phase voltage that bar chart control part 3 will calculate based on the value of value that inputs to the RS phase voltage of measuring operational part 1 and ST phase voltage is as being used to carry out output of demonstration key element and the end process that bar chart shows.Bar chart display part 7 shows that to the conduct from 3 inputs of bar chart control part the value of the TR phase voltage of key element simulates demonstration by bar chart.
Below, the situation that three-phase circuit 50 is carried out the three-phase 4 line formulas of wiring for power supply in the Y mode describes.In the case, operating personnel operate operating portion 4, and the phase line form is set at three-phase 4 line formulas, and this setting value is stored in the setting value storage control part 5 as phase line form setting value 501.
For measuring operational part 1, its input terminal respectively with the conductor R of three-phase circuit 50, conductor S is connected with conductor T, import the R phase voltage respectively, S phase voltage and T phase voltage, and R phase current, S phase current and T phase current, this measures the value of operational part 1 based on the voltage and the electric current of above-mentioned input, and computing is as the voltage effective value and the average voltage of each phase of electric parameter, the current effective value of each phase and average current, the power of each phase and general power, the reactance capacity of each phase and total reactance capacity, the applied power of each phase and total applied power, and the power factor of each phase and total power factor.Then, the value with the voltage and the electric current of this operation result and above-mentioned input inputs to digital control 2 and bar chart control part 3.
Carry out in the Y mode for power supply at three-phase circuit 50 under the situation of three-phase 4 line formula circuit of wiring, for example, numeral epimere control part 201 is exported the value of R phase voltage as being used to carry out the digital demonstration key element that shows, and carry out numeral by 61 pairs of these values of digital epimere display part and show, numeral stage casing control part 202 is exported the value of S phase voltage as being used to carry out the digital demonstration key element that shows, and carry out numeral by 62 pairs of these values of digital stage casing display part and show, numeral hypomere control part 203 carries out the demonstration key element output that numeral shows with the value of T phase voltage as being used to, and carries out the numeral demonstration by 63 pairs of these values of digital hypomere display part.
In addition, operation by operating portion 4, can at random set the displaying contents setting value of setting value storage control part 5, so that the value of certain 1 or 2 some phase voltage of output in digital epimere control part 201, digital stage casing control part 202 and the digital hypomere control part 203, and the value of other 2 or 1 some phase current of output.In the case, numeral epimere display part 61, digital stage casing display part 62 and digital hypomere display part 63, with from digital control 2 the input above-mentioned demonstration key element accordingly, show by certain 1 or 2 values, and 2 or 1 value to some phase current are carried out numeral demonstration in addition some phase voltage.
In addition, to when the demonstration key element of above-mentioned digital control 2 output is carried out numeral demonstration, bar chart control part 3 is based on the phase line form setting value 501 of setting value storage control part 5 and the output of bar chart display setting value 502, and from digital control 2 digital epimere control part 201, the output relevant of numeral stage casing control part 202 and digital hypomere control part 203 with each digital displaying contents, select the regulation electric parameter from the electric parameter of measuring operational part 1 input as described later, this electric parameter of selecting is exported as being used to carry out the demonstration key element that bar chart shows.Bar chart display part 7 utilizes bar chart that the demonstration key element from the conduct regulation electric parameter of bar chart control part 3 output is simulated demonstration.
Fig. 3 is that the phase line form setting value 501 in will being stored in setting value storage control part 5 is set under the situation of three-phase 4 line formulas the process flow diagram that the output of the bar chart of bar chart control part 3 is judged.This processing is carried out repeatedly with specific time interval.Among Fig. 3,, judge the blocked operation that whether has carried out digital demonstration, under the situation of the blocked operation that digital demonstration has taken place, become "Yes" and enter step S102 by operating portion 4 at step S101.If do not switch operation, then become "No" and end process.In step S102, at first the demonstration key element to digital epimere control part 201, digital stage casing control part 202 and digital hypomere control part 203 compares, judges.
If the demonstration key element of digital epimere control part 201, digital stage casing control part 202 and digital hypomere control part 203 is all not identical, then the result of determination of this step S102 becomes "No" and enters step S103, will be based on the electric parameter that is stored in bar chart display setting value 502 selections in the setting value storage control part 5, as being used to carry out output of demonstration key element and the end process that bar chart shows.7 pairs of conducts from 3 outputs of bar chart control part of bar chart display part show that the electric parameter of key element carries out bar chart and shows.Whether on the other hand, if show that all key element is all identical, then the result of determination of step S102 becomes "Yes" and enters step S104, be that voltage or electric current compare, judge to this demonstration key element.
Showing that key element is that the result of determination of step S104 becomes "No" and enters step S105 under the situation of voltage or electric current demonstration key element in addition.In step S105, export the total value and the end process of the demonstration key element of digital epimere control part 201, digital stage casing control part 202 and digital hypomere control part 203.The demonstration key element of for example digital epimere control part 201, digital stage casing control part 202 and digital hypomere control part 203 is the power factor of each phase, and then bar chart control part 3 is exported the total power factor of this three-phase circuit integral body as showing key element.Bar chart display part 7 shows that to the conduct from bar chart control part 3 output the total power factor of key element simulates demonstration by bar chart.
Showing that key element is under the situation of voltage or electric current, the result of determination of step S104 becomes "Yes" and enters step S106.In step S106, bar chart control part 3 is the mean value of each phase voltage or electric current with the demonstration key element of digital epimere control part 201, digital stage casing control part 202 and digital hypomere control part 203, as being used to carry out output of demonstration key element and the end process that bar chart shows.Bar chart display part 7 shows that to the conduct from bar chart control part 3 output the voltage of key element or the mean value of electric current simulates demonstration by bar chart.
As noted above, 1 related electronic indicator according to the embodiment of the present invention, electric parameter at three-phase circuit, the electric parameter that on 3 digital display parts, shows each phase of identical element, thereby can in 1 bar chart, monitor above-mentioned 3 values that numeral shows intuitively, can save at whole digital values and switch successively and be presented at trouble in the bar chart.In addition, judge the electric parameter that shows by the bar chart display part automatically owing to the electric parameter that shows according to numeral, so can simplify the setting that is used to carry out the bar chart demonstration.
Below, embodiments of the present invention 2 related electronic indicators are described.Fig. 4 is the process flow diagram that the bar chart output of the bar chart control part 3 of the related electronic indicator of embodiments of the present invention 2 is judged.In addition, other parts are identical with the situation of above-mentioned embodiment 1.
Among Fig. 4,, judge whether to have been undertaken the blocked operation of the displaying contents that should show by digital display part 6,, then become "Yes" and enter step S122 if blocked operation has taken place by operating portion 4 at step S121.If do not switch operation, then become "No" and end process.In step S122, the demonstration key element of digital epimere control part 201, digital stage casing control part 202 and digital hypomere control part 203 is compared, judges.If show that key element is all not identical, then the result of determination of step S122 becomes "No" and enters step S123, and according to the bar chart display setting value 502 that is stored in the setting value storage control part 5, output shows key element and end process.The demonstration key element of 7 pairs of these outputs of bar chart display part is carried out bar chart and is shown.
Show that in each numeral key element all is under the situation of identical demonstration key element from digital epimere control part 201, digital stage casing control part 202 and 203 outputs of digital hypomere control part, promptly, for example by digital epimere control part 201 voltage of R phase is exported as the demonstration key element respectively, numeral stage casing control part 202 is exported the voltage of S phase as the demonstration key element, under the situation of voltage as the output of demonstration key element of numeral hypomere control part 203 with the T phase, the result of determination of step S122 becomes "Yes" and enters step S124.
In step S124, obtain maximal value and minimum value in this identical demonstration key element, the two value is carried out the demonstration key element that bar chart shows as being used to, export bar chart display part 7 and end process to.Bar chart display part 7 shows that by bar chart the conduct of this output shows the maximal value and the minimum value of key element.
As noted above, 2 related electronic indicators according to the embodiment of the present invention, electric parameter at three-phase circuit, the electric parameter that on 3 digital display parts, shows each phase of identical element, thereby can in 1 bar chart, monitor maximal value and the minimum value of above-mentioned 3 numerals in showing intuitively, can save at whole digital values and switch successively and be presented at trouble in the bar chart.
Below, embodiments of the present invention 3 related electronic indicators are described.Fig. 5 is the block diagram of the related electronic indicator of embodiments of the present invention 3, and Fig. 6 is the process flow diagram that the bar chart output of its bar chart control part is judged, this processing is carried out repeatedly with specific time interval.In Fig. 5, the bar chart that is connected with bar chart control part 3 shows and switches timer 8, as described later shown in, the switching that the bar chart of bar chart display part 7 shows is controlled.In addition, other structures are identical with above-mentioned embodiment 1.
Below, action is described.Among Fig. 6,, judge whether the switching of digital displaying contents has been carried out in the operation of operating portion 4, under the situation of the switching that digital displaying contents has taken place, become "Yes" and enter step S132 by operating personnel at step S131.In step S132, compare, judge at whether the demonstration key element of digital epimere control part 201, digital stage casing control part 202 and digital hypomere control part 203 is identical.
If the demonstration key element of digital display part 6 is all not identical, then the result of determination of step S132 becomes "No" and enters step S133, stores value output and the end process of that demonstration key element in the bar chart display setting value 503 of control part 5 with being stored in setting value.Thus, the demonstration key element of 7 pairs of these outputs of bar chart display part is carried out the bar chart demonstration.
Show that in each numeral key element all is that the result of determination of step S132 becomes "Yes" and enters step S134 under the situation of identical key element from digital epimere control part 201, digital stage casing control part 202 and 203 outputs of digital hypomere control part.In step S134, bar chart control part 3 makes bar chart show switch timer 8 to start and enter step S135, and the value with the demonstration key element of prima facies, for example R phase exports bar chart display part 7 and end process to.Thus, the demonstration key element of the prima facies of 7 pairs of these inputs of bar chart display part is carried out the bar chart demonstration.
Under this state, if the switching that numeral shows does not take place, then the result of determination of step S131 is "No" and enters step S136.Bar chart show to switch timer 8 and begins through after the stipulated time of setting from starting among step S134, and output bar chart switching timing in step S136, shows that at whether having produced this bar chart switching timing judges.Show switching timing if produced bar chart, then the result of determination of step S136 becomes "Yes", enters step S137, switches the phase of the demonstration key element of bar chart, exports the demonstration key element of next phase, for example S phase, end process.Thus, the demonstration key element of the next phase of 7 pairs of these inputs of bar chart display part is carried out the bar chart demonstration.
Then, from this state, if the switching that numeral shows does not take place, then the result of determination of step S131 is a "No" once more, enters step S136.Bar chart show to switch timer 8 and begins to export the bar chart switching timing once more through after the stipulated time from the output of last bar chart switching timing, in step S136, shows that at whether having produced this bar chart switching timing judges.Show switching timing if produced bar shaped, then the result of determination of step S136 becomes "Yes", enters step S137, switches the phase of the demonstration key element of bar chart, exports the demonstration key element of next phase, for example T phase with respect to the phase of last time, end process.Thus, the demonstration key element of the next phase of 7 pairs of these inputs of bar chart display part is carried out the bar chart demonstration.
As noted above, 3 related electronic indicators according to the embodiment of the present invention, can switch successively mutually according to each the demonstration of bar chart display part 7 every certain stipulated time, can be at the electric parameter of three-phase circuit, the electric parameter that on 3 digital display parts, shows each phase of identical element, thereby in 1 bar chart, monitor above-mentioned 3 values that numeral shows intuitively, can save at whole digital values and switch successively and be presented at trouble in the bar chart.
Claims (8)
1. electronic indicator is characterized in that having:
Measure operational part, it is transfused to the voltage and current as the three-phase circuit of measured circuit, based on the voltage and current of described input, and the electric parameter of the described three-phase circuit of computing;
Digital control portion, it is exported as being used to carry out the demonstration key element that numeral shows any at least 1 in described voltage, described electric current and the described electric parameter;
3 digital display parts, it is transfused to the described demonstration key element from described digital control output, and these demonstration key elements are carried out the numeral demonstration respectively;
The bar chart control part, it is exported as being used to carry out the demonstration key element that bar chart shows any at least 1 in described voltage, electric current and the electric parameter; And
The bar chart display part, it is transfused to from the described demonstration key element of described bar chart control part output, and this demonstration key element is carried out the bar chart demonstration,
From described digital control respectively to described 3 digital display parts input to be used for described demonstration key element that described numeral shows all be identical demonstration key element the time, the demonstration key element of described bar chart control part output regulation is as being used for the described demonstration key element that described bar chart shows.
2. electronic indicator according to claim 1 is characterized in that,
When described three-phase circuit is three-phase 3 line formula circuit, if from described digital control respectively to RS phase voltage, ST phase voltage and the TR phase voltage that to be used for described demonstration key element that described numeral shows be described three-phase circuit of described 3 digital display parts input, then described bar chart control part is exported described TR phase voltage as the demonstration key element of described regulation.
3. electronic indicator according to claim 1 is characterized in that,
When described three-phase circuit is three-phase 3 line formula circuit, if from described digital control respectively to R phase current, S phase current and the T phase current that to be used for described demonstration key element that described numeral shows be described three-phase circuit of described 3 digital display parts input, then described bar chart control part is exported described S phase current as the demonstration key element of described regulation.
4. electronic indicator according to claim 1 is characterized in that,
When described three-phase circuit is three-phase 4 line formula circuit, if from described digital control respectively to each phase voltage that to be used for described demonstration key element that described numeral shows be described three-phase circuit of described 3 digital display parts input, then described bar chart control part is exported the mean value of described each phase voltage as the demonstration key element of described regulation.
5. electronic indicator according to claim 1 is characterized in that,
When described three-phase circuit is three-phase 4 line formula circuit, if from described digital control respectively to each phase current that to be used for described demonstration key element that described numeral shows be described three-phase circuit of described 3 digital display parts input, then described bar chart control part is exported the mean value of described each phase current as the demonstration key element of described regulation.
6. electronic indicator according to claim 1 is characterized in that,
When described three-phase circuit is three-phase 4 line formula circuit, if from described digital control respectively to power, reactance capacity, applied power and the power factor that to be used for described demonstration key element that described numeral shows be each phase of described three-phase circuit of described 3 digital display parts input certain a kind, then described bar chart control part will be respectively to the summation that is used for the described demonstration key element that described numeral shows of described 3 digital display parts inputs, export as the demonstration key element of described regulation.
7. electronic indicator according to claim 1 is characterized in that,
If from described digital control respectively to voltage, electric current, power, reactance capacity, applied power and the power factor that to be used for described demonstration key element that described numeral shows be each phase of described three-phase circuit of described 3 digital display parts input certain a kind, then described bar chart control part will be respectively to the maximal value and the minimum value that are used for the described demonstration key element that described numeral shows of described 3 digital display parts inputs, export as the demonstration key element of described regulation.
8. electronic indicator according to claim 1 is characterized in that,
Have and be used for the switching timer that bar chart shows, from described digital control during respectively to the same demonstration key element of each phase that to be used for described demonstration key element that described numeral shows be described three-phase circuit of described 3 digital display parts input, described bar chart control part is based on the switching timing from described switching timer output, the demonstration key element that is used for the bar chart demonstration of each phase that will be corresponding with carrying out described digital described each the same demonstration key element mutually that shows is switched successively and is exported according to described respectively phase.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008168818A JP4986940B2 (en) | 2008-06-27 | 2008-06-27 | Electronic indicator |
| JP2008-168818 | 2008-06-27 | ||
| JP2008168818 | 2008-06-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101614758A true CN101614758A (en) | 2009-12-30 |
| CN101614758B CN101614758B (en) | 2012-07-18 |
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| CN2008101809535A Active CN101614758B (en) | 2008-06-27 | 2008-11-20 | Electronic type indicator |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102445580A (en) * | 2010-10-12 | 2012-05-09 | 三菱电机株式会社 | Electronic indicator |
| CN104345193A (en) * | 2013-07-26 | 2015-02-11 | 特克特朗尼克公司 | Switching loss measurement and plot in test and measurement instrument |
| CN104808045A (en) * | 2014-01-27 | 2015-07-29 | 三菱电机株式会社 | Electronic indicating instrument |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| PL2547031T3 (en) | 2007-03-15 | 2014-07-31 | Interdigital Tech Corp | Method and apparatus for reordering data in an evolved high speed packet access |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2039372A (en) * | 1979-01-08 | 1980-08-06 | Bendix Corp | Test apparatus for electrical control systems of internal combustion engines |
| JPH01285820A (en) * | 1988-05-12 | 1989-11-16 | Mitsubishi Electric Corp | Display device for measurement |
| JP3325738B2 (en) * | 1995-03-13 | 2002-09-17 | 三菱電機株式会社 | Composite indicating instrument |
| JP2002323527A (en) * | 2001-04-25 | 2002-11-08 | Mitsubishi Electric Corp | Voltmeter with grounding detecting function |
| JP3856710B2 (en) * | 2002-02-21 | 2006-12-13 | 三菱電機株式会社 | Electronic AC ammeter |
| JP4545081B2 (en) * | 2005-10-31 | 2010-09-15 | 日置電機株式会社 | measuring device |
| CN100383535C (en) * | 2006-01-24 | 2008-04-23 | 北京工业大学 | Method and device for calibrating wide-band sampling oscillograph |
| CN2938113Y (en) * | 2006-08-24 | 2007-08-22 | 王悦 | Digital oscilloscope |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102445580A (en) * | 2010-10-12 | 2012-05-09 | 三菱电机株式会社 | Electronic indicator |
| CN104345193A (en) * | 2013-07-26 | 2015-02-11 | 特克特朗尼克公司 | Switching loss measurement and plot in test and measurement instrument |
| CN104808045A (en) * | 2014-01-27 | 2015-07-29 | 三菱电机株式会社 | Electronic indicating instrument |
| CN104808045B (en) * | 2014-01-27 | 2018-04-13 | 三菱电机株式会社 | Electronic type indicating meter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101614758B (en) | 2012-07-18 |
| JP4986940B2 (en) | 2012-07-25 |
| JP2010008269A (en) | 2010-01-14 |
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