CN104808045A - Electronic indicating instrument - Google Patents
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- CN104808045A CN104808045A CN201410520631.6A CN201410520631A CN104808045A CN 104808045 A CN104808045 A CN 104808045A CN 201410520631 A CN201410520631 A CN 201410520631A CN 104808045 A CN104808045 A CN 104808045A
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Abstract
The present invention provides an electronic indicating instrument capable of easily monitoring the voltage. The electronic indicating instrument comprises a measurement operation part (21) for running the voltage effective value based on the voltage of a measurement circuit; a display part (23) for displaying a measurement result; a condition setting part (24) for setting the normal voltage range and a set value as a normal reference; a judging part (25) for judging whether a measurement value obtained by the measurement operation part (21) is within a normal voltage range or not; and a display control part (22) for controlling the display content of the display part (23). When the measurement value is judged by the judging part (25) to be within the normal voltage range, a set value is displayed in the display part (23). When the measurement value is judged by the judging part (25) to be not within the normal voltage range, the measurement value is displayed in the display part (23).
Description
Technical field
The present invention relates to a kind of electronic type indicating instrument used in the monitoring voltage of electric system.
Background technology
As existing electricity surveillance technology, propose following electronic type indicating instrument, namely, the voltage of input circuit, electric current, the electricity calculated based on this voltage and current is presented in numerical monitor portion and bar chart display part, carry out the visual surveillance (for example, referring to patent documentation 1) monitoring based on the direct numerical value of digital value and show based on bar chart simultaneously.
In addition, when the fluctuation as measured value in the regulators and setting value is larger, be easy to the technology of the display observing measured value, propose following figure place showing variset, it has: display part, and it has multiple display position, and display measurement value; Display driver portion, it drives display part; And configuration part, its set and display figure place, this figure place showing variset carries out following control to display part, namely, when measured value is in outline viewing area, lowest order is made to be blank or display mark-hold, when this measured value is in full viewing area, position, comprise lowest order and carry out variable display (for example, referring to patent documentation 2).
Patent documentation 1: Japanese Unexamined Patent Publication 2010-8269 publication (the 2nd page, Fig. 1)
Patent documentation 2: Japanese Patent Publication 5-25501 publication (the 2nd page, Fig. 1-3)
The monitoring voltage by power distribution system, feed system, load system being arranged in downstream compared with isoelectric point of the factory in electric system, mansion etc. uses indicating instrument.Usually, indicating instrument uses mechanical type indicating instrument and electronic type indicating instrument, and mechanical type indicating instrument is shown by pointer, and electronic type indicating instrument as Patent Document 1, shown by numerical monitor such as liquid crystal indicators, electronic type indicating instrument becomes main flow.
Even be arranged on the same voltage of voltage measuring value of the electronic type indicating instrument in same system, neither be on all four.This is that the inherent error of potential transformer owing to combinationally using and electronic type indicating instrument causes.Therefore, there is following problems, although that is, state is normal, supvr still feels there is exception.
For the monitoring voltage using mechanical type indicating instrument, because its precision is lower, and shown by pointer, therefore, adopt in the method confirming the trend of voltage, correlationship, the fluctuation of the measured value of this system is not problem.In contrast, for electronic type indicating instrument, its precision is higher, and displayed value is numerical monitor, therefore, the fluctuation of the measured value of this system is become and comes to the surface.
Further, because displayed value is relatively more detailed, therefore, there is numerical value and easily change, be difficult to read and record the problem of displayed value.
As shown in above-mentioned patent documentation 2, due to comprise display radix point after low level change at a high speed, be difficult to observe displaying contents, for this shortcoming, as display display packing and be set with full figure place viewing area and outline viewing area, the display of full position is carried out in full figure place viewing area, and outline viewing area will be set to blank or become symbol and show after radix point.
When this technology is applied to electronic type indicating instrument, easily read in outline viewing area and record displayed value, but measuring accuracy worsens.In addition, in full figure place viewing area, the problem of the fluctuation of the measured value of this system cannot be solved.
Summary of the invention
The present invention proposes to solve the problem a little, its object is to obtain a kind of electronic type indicating instrument, this electronic type indicating instrument is used in the voltage monitoring system in electric system, even if under the state of fluctuation that there is the measured value caused due to inherent error etc., also can not mislead supvr and normally will be judged as exception, easily can carry out monitoring voltage.
Electronic type indicating instrument involved in the present invention is the electronic type indicating instrument of the monitoring voltage for electric system, this electronic type indicating instrument has: operation result of measurement portion, it directly or read the voltage of measured circuit, union voltage effective value via potential transformer; Display part, its display measurement result; Condition configuration part, its setting normal voltage range and the setting value as normal benchmark; Detection unit, it judges whether the measured value drawn by the computing of operation result of measurement portion is in normal voltage range; And display control unit, it controls the displaying contents to display part, display control unit when detection unit determine measured value be in normal voltage range, setting value is presented in display part, when detection unit determine measured value be not in normal voltage range, measured value is presented in display part.
The effect of invention
According to electronic type indicating instrument of the present invention, display control unit when detection unit determine measured value be in normal voltage range, setting value is presented in display part, when detection unit determine be not in normal voltage range, measured value is presented in display part, therefore, easy judgement measured value departs from exception when normal voltage range, in addition, when being in normal range, display becomes fixing, although can prevent from being normal condition, but supvr is judged as abnormal mistake identification, make reading, record also become easy.
Accompanying drawing explanation
Fig. 1 is the system diagram of 1 example of the electric system representing the electronic type indicating instrument be provided with in embodiments of the present invention 1.
Fig. 2 is the block diagram of the inner structure of the electronic type indicating instrument represented in embodiments of the present invention 1.
Fig. 3 is the process flow diagram of the action of the display measurement value of the electronic type indicating instrument represented in embodiments of the present invention 1.
Fig. 4 represents in the display part of Fig. 2, the figure of the display frame when measuring voltage is in normal voltage range.
Fig. 5 represents in the display part of Fig. 2, the figure of the display frame when measuring voltage is not in normal voltage range.
Fig. 6 is the process flow diagram of the action of the display measurement value of the electronic type indicating instrument represented in embodiments of the present invention 2.
Fig. 7 is the figure of the display frame of the display part of the electronic type indicating instrument represented in embodiments of the present invention 3.
Fig. 8 is the figure of the display frame of the display part of the electronic type indicating instrument represented in embodiments of the present invention 4.
Fig. 9 is the block diagram of the inner structure of the electronic type indicating instrument represented in embodiments of the present invention 5.
Figure 10 is the process flow diagram of the action of the display measurement value of the electronic type indicating instrument represented in embodiments of the present invention 5.
Figure 11 is the process flow diagram of the detailed content of a part of step represented in Figure 10.
The explanation of label
1 isoelectric point, 2 by piezoelectric transformer, 3 potential transformers, 4 electronic type indicating instruments, 5 potential transformers, 6 electronic type indicating instruments, 7 supply transformers, 8 potential transformers, 9 electronic type indicating instruments, 10 air-conditionings, 11 lighting devices, 12 motor, 13 ~ 15 electronic type indicating instruments, 20 electronic type indicating instruments, 21 operation result of measurement portions, 22 display control units, 23 display parts, 24 condition configuration parts, 25 detection units, 26 rated voltage configuration parts, 30 electronic type indicating instruments, 31 operation result of measurement portions, 32 display control units, 33 display parts, 34 condition configuration parts, 35 detection units, 36 mailing address configuration parts, 37 communication control units, 38 same system detection units, 39 same system data saving part, 40 same system average voltage operational parts.
Embodiment
Below, based on Fig. 1 ~ Fig. 5, the electronic type indicating instrument in embodiments of the present invention 1 is described.
Fig. 1 represents to have load system, and is provided with the system diagram of an example of the electric system of electronic type indicating instrument as monitoring arrangement.The electricity usage persons such as factory, mansion be arranged in downstream compared with the isoelectric point 1 of power equipment use multiple electronic type indicating instrument by power distribution system, feed system, load system, monitor to monitoring arrangement by voltage is read in.
Is such as be the device of 6.6kV by 22kV step-down by power distribution system by piezoelectric transformer 2, in its primary side, be provided with the electronic type indicating instrument 4 of the output of potential transformer 3 as input, by this electronic type indicating instrument 4, measure the voltage by the primary side of piezoelectric transformer 2 and show.
Similarly, in the primary side by piezoelectric transformer 2, be provided with the electronic type indicating instrument 6 of the output of potential transformer 5 as input, by this electronic type indicating instrument 6, measure the voltage by the primary side of piezoelectric transformer 2 and show.
6.6kV step-down is such as 200V and supplies to load system by the supply transformer 7 of feed system.In the primary side of this supply transformer 7, be provided with the electronic type indicating instrument 9 of each output of potential transformer 8 as input, by this electronic type indicating instrument 9, measure the voltage of primary side and show.
In load system, multiple load connects at the secondary lateral parallel of supply transformer 7.As an example of load, such as, air-conditioning (air governor) 10, lighting device 11, motor 12 is demonstrated.For these each loads, be provided with the electronic type indicating instrument 13,14,15 of the output of potential transformer (omit diagram) as input, by electronic type indicating instrument 13,14,15, respectively measuring system voltage and show.
In addition, sometimes omit potential transformer according to the voltage of measured circuit, thus electronic type indicating instrument directly reads the voltage of measured circuit.
Fig. 2 is the block diagram of the structure of the electronic type indicating instrument represented in embodiment 1.Each electronic type indicating instrument illustrated by Fig. 1 is essentially identical structure, therefore, in following explanation, is described by the electronic type indicating instrument in embodiment 1 as electronic type indicating instrument 20.
Electronic type indicating instrument 20 has: operation result of measurement portion 21, and it is transfused to the voltage of measured circuit or the voltage of measured circuit is carried out the output of potential transformer of step-down, union voltage effective value; Display control unit 22, the display of the operation result of its control survey operational part 21; Display part 23, its display measurement result; Condition configuration part 24, its setting normal voltage range and setting value; Detection unit 25, it judges that whether the value of operation result is normal; And rated voltage configuration part 26, it sets rated voltage.
In addition, rated voltage configuration part 26 is dispensable in the scope of embodiment 1, therefore, here omits the description, and is described in detail in embodiment 2.
The following describes the details in each portion.
Display control unit 22 has 2 display modes, that is, operational mode and monitoring mode, and two patterns can switch.Be provided with detection unit 25 in monitoring mode wherein, it is normal or abnormal judgement that this detection unit 25 carries out measured value.
Condition configuration part 24 prepares out the value of " normal voltage range " of the tolerance level as measured circuit and " setting value " for the benchmark as normal voltage in advance.
In operation result of measurement portion 21, carry out effective value computing to inputted voltage, magnitude of voltage computing drawn sends as " measured value " to display control unit 22.On the other hand, in condition configuration part 24, " setting value " of setting can be set by user, such as, and can using rated voltage as setting value.In the present embodiment, the value that user sets is called " user's setting value ".
When operational mode, " measured value " that drawn by operation result of measurement portion 21 is presented in display part 23.When monitoring mode, judge that the measured value drawn by operation result of measurement portion 21 is normal or abnormal by detection unit 25.Decision condition is now used in " normal voltage range " that set out in configuration part 24, if the measured value drawn by operation result of measurement portion 21 is in normal voltage range, then be judged to be normal, and " the user's setting value " that set out by condition configuration part 24 is presented in display part 23.If be in outside normal voltage range, be then judged to be exception, the exceptional value directly " measured value " that drawn by operation result of measurement portion 21 namely being departed from normal voltage range is presented in display part 23.
Below, the action of monitoring mode is further illustrated by the process flow diagram of Fig. 3.
First, in initial step S51 (under look like S51 be called for short like this), in operation result of measurement portion 21, effective value computing is carried out to inputted voltage, using operation result as " measured value ", and send to display control unit 22.
Then, in S52, in display control unit 22, judge that display mode is operational mode or monitoring mode, changed by dwell pattern.
When non-monitoring mode, namely when operational mode, enter S55, " measured value " that drawn by operation result of measurement portion 21 is presented in display part 23.
When monitoring mode, enter S53, judge whether the measured value drawn by operation result of measurement portion 21 is in the normal voltage range that set out by condition configuration part 24 by detection unit 25.
, if it is determined that source is in normal voltage range, then enter S54 here, " the user's setting value " that set out by condition configuration part 24 is presented in display part 23.
Be in outside normal voltage range if determined in S53, then enter S55, " measured value " that drawn by operation result of measurement portion 21 is presented in display part 23.
Below, illustrate when by display frame when electronic type indicating instrument measuring voltage in embodiment 1.Fig. 4 is the figure of the example representing display frame.Electric-powered manner is the three-phase 3 line formula of 6.6kV system, and the measured value of RS phase is 6589V, the measuring voltage of ST phase is 6588V, the measuring voltage of TR phase is 6585V, normal voltage range is being set to 6534V ~ 6666V (6600V ± 1%), when user's setting value is set to 6600V, it is the example that measuring voltage is in the display frame in normal range.Figure (a) represents the display frame of operational mode, and figure (b) represents the display frame of monitoring mode.
When operational mode, as shown in figure (a), display measurement voltage and measured value.
When monitoring mode, the measured value of each phase is in normal voltage range, therefore, as shown in figure (b), and display user setting value.
Fig. 5 is that imposing a condition of electric-powered manner and condition configuration part 24 is identical with Fig. 4, and the measuring voltage of the measured value of RS phase to be the measuring voltage of 6530V, ST phase be 6588V, TR phase is the situation of 6585V.That is, the example of the display frame when the measured value drawn by operation result of measurement portion 21 is in normal voltage range outer (in this example, the measured value of RS is lower than normal voltage range).Figure (a) represents the display frame of operational mode, and figure (b) represents the display frame of monitoring mode.
When operational mode, as shown in figure (a), display measurement value.When monitoring mode, the measuring voltage due to RS phase is in outside normal voltage range, therefore, as shown in figure (b), the display of RS phase is set to measured value 6530V, because ST phase is in normal voltage range with TR phase, therefore, the 6600V of user's setting value is shown.
By above-mentioned display, in monitoring mode, if display frame display user setting value, then can confirm normal, if the value beyond display user setting value, then easily can confirm exception.
In addition, in above-mentioned, only display is in the measured value of the phase outside normal voltage range, but, if certain is in outside normal voltage range mutually, then also can for all phase display measurement values.
As mentioned above, electronic type indicating instrument involved by embodiment 1, be the monitoring voltage in order to carry out electric system and the electronic type indicating instrument used, this electronic type indicating instrument has: operation result of measurement portion, it directly or read the voltage of measured circuit, union voltage effective value via potential transformer, display part, its display measurement result, condition configuration part, its setting normal voltage range and the setting value as normal benchmark, detection unit, it judges whether the measured value drawn by the computing of operation result of measurement portion is in normal voltage range, and display control unit, it controls the displaying contents to display part, display control unit controls in the following manner, namely, when detection unit determine measured value be in normal voltage range, setting value is presented in display part, when detection unit determine measured value be not in normal voltage range, measured value is presented in display part, therefore, easily judge exception when measured value departs from normal voltage range, in addition, when being in normal range, display becomes fixing, therefore, although can prevent from being normal condition but supvr is still judged as abnormal mistake identification, also reading is made, record becomes easy.
Embodiment 2
Fig. 6 is the process flow diagram of the action of the display measurement value of the electronic type indicating instrument represented in embodiments of the present invention 2.The structure of electronic type indicating instrument is identical with Fig. 2 of embodiment 1.But omissible rated voltage configuration part 26 is necessary in embodiment 1.The rated voltage of measured circuit is set with in rated voltage configuration part 26.The picture of display part is identical with embodiment 1.Below, omit the explanation of same section, and difference is described as center.
In the S61 of Fig. 6, in operation result of measurement portion 21, effective value computing is carried out and computation and measurement value to inputted voltage, the measured value calculated is sent to display control unit 22.
Then, in s 62, in display control unit 22, judge that display mode is operational mode or monitoring mode., enter S65 when non-monitoring mode here, measured value is presented in display part 23 identically with embodiment 1.
When monitoring mode, entering S63, judging whether the measured value drawn by operation result of measurement portion 21 is in normal voltage range, when not being in normal voltage range, enters S65 by detection unit 25.
When being in normal voltage range, the rated voltage automatically set out rated voltage configuration part 26 as shown in Figure 2 as the setting value of condition configuration part 24, and is presented in display part 23.That is, what display part 23 showed is load voltage value.Electronic type indicating instrument, in order to use, needs the rated voltage that setting and measurement point match, and therefore, utilizes this value as setting value.
In addition, in explanation hereto, normal voltage range is set by the user, but, also according to the measuring accuracy of electronic type indicating instrument known in advance and the load voltage value set out by rated voltage configuration part 26, and automatically can calculate.
As mentioned above, according to the electronic type indicating instrument of embodiment 2, on the basis of the structure of embodiment 1, also there is rated voltage configuration part, the rated voltage that its setting is corresponding with the voltage of measured circuit, the rated voltage set out by rated voltage configuration part is used in the setting value of condition configuration part, when detection unit determine measured value be in normal voltage range, rated voltage is shown, therefore, can on the basis of the effect of embodiment 1, prevent because setting increases bothering of causing, and simplify setting.
In addition, the normal voltage range set by condition configuration part automatically can be set based on the measuring accuracy of electronic type indicating instrument and the load voltage value set out by rated voltage configuration part, therefore, setting can be simplified further, in addition, when being provided with multiple electronic type indicating instrument in electric system, display can be fixed in measuring accuracy.
Embodiment 3
Fig. 7 is the example of the display frame of the monitoring mode of the electronic type indicating instrument represented in embodiments of the present invention 3.The structure of electronic type indicating instrument is identical with Fig. 2 of embodiment 1.Below, omit the explanation of same section, and difference is described as center.
In the present embodiment, in the monitoring mode, when measured value is in outside normal voltage range, with on the basis of the mode display measurement value illustrated by the Fig. 5 by embodiment 1, as representing abnormal intrinsic display, additional abnormality juding information.As an example of abnormality juding information, when measured value exceedes normal voltage range additional " HIGH ", when lower than additional " LOW " intrinsic information, with measured value Alternation Display.
Fig. 7 is all pictures of monitoring mode, and figure (a) is the display frame of direct display measurement value, and figure (b) is the display frame being attached with abnormality juding information.When this example, the measuring voltage of RS phase, lower than normal voltage range, therefore, is shown as " LOW ".This (a) picture is hocketed with this (b) picture show.
As mentioned above; according to the electronic type indicating instrument of embodiment 3; when detection unit determine be not in normal voltage range, by measured value with represent abnormal intrinsic display Alternation Display, therefore; by additional abnormality juding information; such as, to being that exception because voltage rise causes or the exception caused due to voltage drop are very clear, and; strengthen identity by Alternation Display, make the exception of monitoring voltage judge to become easy.
Embodiment 4
Fig. 8 is the example of the display frame of the electronic type indicating instrument represented in embodiment 4.The structure of electronic type indicating instrument is identical with Fig. 2 of embodiment 1.Below, the difference with embodiment 1 is described as center.
Fig. 8 (A) is the display frame of operational mode, and Fig. 8 (b) is the display frame of monitoring mode.When as the measuring voltage value identical with Fig. 4 of embodiment 1, in operational mode, as shown in figure (a), display measurement value.In monitoring mode, the measured value of each phase is in normal voltage range, therefore, as shown in figure (b), the situation of display setting value is identical with embodiment 1, but, in the present embodiment, on this basis, when being in normal voltage range, the additional measured value for normal voltage range.
Usually, electronic type indicating instrument has bar chart, is represented the situation utilizing this bar chart by example.As the measured value be attached in bar chart, exemplify following content, that is, the scope shown by bar chart shows the minimum and maximum value of normal voltage range as the normal voltage range set out by condition configuration part, be presented in this bar chart by measured value by warning triangle.In addition, also can display setting value.
In addition, as the measured value be attached in bar chart, also can show the measured value of the phase voltage of all each phases, depart from the measured value of the phase voltage of normal voltage range most, the mean value of each phase voltage.
As mentioned above, according to the electronic type indicating instrument of embodiment 4, display part has the function of bar chart display, the scope shown by bar chart is as the normal voltage range set out by condition configuration part, when determined by detection unit be in normal voltage range, bar chart display in display measurement value, therefore, the rate more than needed relative to normal voltage range can be confirmed, thus make to be of value to and prevent the meticulous monitoring voltages such as abnormal generation from becoming easy in advance.
Embodiment 5
In embodiment 1, determine the normal situation of measured value in monitoring mode under, the fixed value of display user setting, but, in the present embodiment, the setting voltage value corresponding with measured value can be shown.
Fig. 9 is the block diagram of the structure of the electronic type indicating instrument represented in embodiments of the present invention 5.In addition, Figure 10 is the process flow diagram of the action of the measured value represented in display Fig. 9, and Figure 11 is the process flow diagram of the detailed content of the handling part represented further in Figure 10.
In fig .9, electronic type indicating instrument 30 inputs by the voltage of measured circuit or by the output of the potential transformer of the voltage step-down of measured circuit to operation result of measurement portion 31, and carrying out effective value computing, measured value computing drawn sends to display control unit 32.Display control unit 32 has operational mode and monitoring mode, and can switch.When operational mode, by by operation result of measurement portion 31 computing and the measured value drawn be presented in display part 33.When monitoring mode, carry out same system average voltage calculation process described later.
Part from operation result of measurement portion 31 to detection unit 35, identical from the part of operational part 21 to detection unit 25 at hardware aspect and embodiment 1, in the present embodiment, also there is mailing address configuration part 36, communication control unit 37, same system detection unit 38, same system data saving part 39 and same system average voltage operational part 40.
Normal voltage range is preset in condition configuration part 34.
The setting value of condition configuration part 34 is determined by same system average voltage calculation process as described below.
First, in communication control unit 37, by communication, according to the order of the mailing address set out by mailing address configuration part 36, the measured value of the multiple electronic type indicating instruments be arranged in same system is collected.The mutual method of attachment of electronic type indicating instrument has the modes such as wired, wireless.
Then, based on the condition set out and normal voltage range, in same system detection unit 38, normal or abnormal judgement is carried out to collected measured value.To be in normal voltage range and be judged as normal measured value and be saved to same system data saving part 39 as computing candidate, then, in same system average voltage operational part 40, the mean value preserving data is calculated, it can be used as " setting value ".
After same system average voltage calculation process, by the detection unit 35 in display control unit 32, be normally or extremely judge to the measured value drawn by operation result of measurement portion 31 computing.The normal voltage range of decision condition service condition configuration part 34, if the measured value drawn by operation result of measurement portion 31 computing is in normal voltage range, is then judged to be normal, above-mentioned " setting value " is presented in display part 33.If be in outside normal voltage range, be then judged to be exception, show that " measured value " is presented in display part 33 by by operation result of measurement portion 31 computing.
Below, by Figure 10,11 process flow diagram further describe above-mentioned action.
In the S71 of Figure 10, the output of potential transformer inputted to operation result of measurement portion 31, carry out effective value computing by operation result of measurement portion 31 to inputted voltage, computation and measurement value also sends to display control unit 32.
Then, in S72, judge whether the display mode of display control unit 22 is monitoring modes, changed by dwell pattern.
When non-monitoring mode, namely when operational mode, enter S76, the measured value drawn by operation result of measurement portion 31 is presented in display part 33.
When monitoring mode, enter S73, carry out the same system average voltage calculation process calculating setting value.
Figure 11 is the process flow diagram of the detailed content of the calculation process representing S73.Utilize Figure 11, same system average voltage calculation process is described.
If beginning calculation process, then first in S81, in communication control unit 37, according to the order of the mailing address set out by mailing address configuration part 36, the measured value of the electronic type indicating instrument be arranged in same system is collected.
Then, in S82, in same system detection unit 38, whether the measured value collected by judgement is in the normal voltage range that set out by condition configuration part 34.
In S82, if it is determined that for being in normal voltage range, then entering S83, being saved to same system data saving part 39 as computing candidate, entering S85.
In S82, if it is determined that for being in outside normal voltage range, then not as computing candidate, enter S85.
In S85, repeat from S81 to S84, till the collecting into of the measured value to the multiple electronic type indicating instruments be arranged in same system.
Then, in S86, after the measured value that have collected the multiple electronic type indicating instruments be arranged in same system, in same system average voltage operational part 40, calculate the mean value of the computing candidate be kept in same system data saving part 39, using the setting value of this value setting as condition configuration part 34, terminate same system average voltage calculation process.
Return Figure 10, in s 74, in detection unit 35, judge whether the measured value drawn by operation result of measurement portion 31 is in the normal voltage range that set out by condition configuration part 34.
In s 74, be in normal voltage range if it is determined that go out measured value, then the setting value be set in condition configuration part 34 of the S86 by Figure 11 be presented in display part 33.
In s 74, if it is determined that for being in outside normal voltage range, then enter S76, the measured value drawn by operation result of measurement portion 31 is presented in display part 33.
In the above description, for the electronic type indicating instrument be arranged in same system, calculating mean value, and set it to setting value, but, even if in same system, sometimes because air-conditioning, lighting device or motor even load are different, variation in voltage is also different, therefore, using much scopes as same system, can arbitrary electronic type indicating instrument be selected by user and determine.
In addition, the decision condition of detection unit 35 and same system detection unit 38 is common, but, there is the fluctuation of the measured value caused due to inherent error etc., therefore, also can set decision condition respectively.
As mentioned above, according to the electronic type indicating instrument of embodiment 5, also have: communication control unit, it is collected the measured value of the electronic type indicating instrument being arranged on same system; Same system detection unit, it judges whether the measured value collected by communication control unit is in normal voltage range; Same system data saving part, its when determined by same system detection unit be in normal voltage range, collected measured value is preserved as computing candidate; And same system average voltage operational part, the mean value of the computing candidate that its computing is preserved in same system data saving part, using the mean value that calculated by the same system average voltage operational part setting value as condition configuration part, therefore, by being set as the setting value corresponding with the measured value of the multiple electronic type indicating instruments be arranged in same system, even if be provided with the violent position of the variations in voltage such as generator, also can, by the value close with the measured value of reality, make the displayed value of the electronic type indicating instrument be arranged in same system consistent.
In addition, the invention of the application in its scope of invention, can be carried out independent assortment to each embodiment, suitably changes embodiment, omits.
Claims (6)
1. an electronic type indicating instrument, it is for the monitoring voltage in electric system,
The feature of this electronic type indicating instrument is to have:
Operation result of measurement portion (21), it is directly or read the voltage of measured circuit, union voltage effective value via potential transformer (3,5,8);
Display part (23), its display measurement result;
Condition configuration part (24), its setting normal voltage range and the setting value as normal benchmark;
Detection unit (25), it judges whether the measured value drawn by (21) computing of described operation result of measurement portion is in described normal voltage range; And
Display control unit (22), it controls the displaying contents to described display part (23),
Described display control unit (22), when described detection unit (25) determine described measured value be in described normal voltage range, described setting value is presented in described display part (23), when described detection unit (25) determine described measured value be not in described normal voltage range, described measured value is presented in described display part (23).
2. electronic type indicating instrument according to claim 1, is characterized in that,
Also there is rated voltage configuration part (26), the rated voltage that the setting of this rated voltage configuration part (26) is corresponding with the voltage of described measured circuit,
The load voltage value set out by described rated voltage configuration part (26) is used in the setting value of described condition configuration part (24),
When described detection unit (25) determine described measured value be in described normal voltage range, show described load voltage value.
3. electronic type indicating instrument according to claim 2, is characterized in that,
By the described normal voltage range that described condition configuration part (24) sets, automatically set based on the measuring accuracy of described electronic type indicating instrument and the described load voltage value that set out by described rated voltage configuration part (26).
4. electronic type indicating instrument according to claim 1, is characterized in that,
When described detection unit (25) determine be not in described normal voltage range, by described measured value with represent abnormal intrinsic display Alternation Display.
5. electronic type indicating instrument according to claim 1, is characterized in that,
Described display part (23) has the function of bar chart display, the scope shown by described bar chart is as the described normal voltage range set out by described condition configuration part (24), when determined by described detection unit (25) be in described normal voltage range, in the display of described bar chart, show described measured value.
6. electronic type indicating instrument according to claim 1, is characterized in that also having:
Communication control unit (37), it is collected the described measured value of the described electronic type indicating instrument be arranged in same system;
Same system detection unit (38), it judges whether the described measured value collected by described communication control unit (37) is in described normal voltage range;
Same system data saving part (39), its when determined by described same system detection unit (38) be in described normal voltage range, collected described measured value is preserved as computing candidate; And
Same system average voltage operational part (40), the mean value of the described computing candidate that its computing is preserved in described same system data saving part (39),
The mean value that will be calculated by described same system average voltage operational part (40) is as the described setting value of described condition configuration part (34).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014011968A JP6116493B2 (en) | 2014-01-27 | 2014-01-27 | Electronic indicator |
| JP2014-011968 | 2014-01-27 |
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| CN104808045A true CN104808045A (en) | 2015-07-29 |
| CN104808045B CN104808045B (en) | 2018-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410520631.6A Expired - Fee Related CN104808045B (en) | 2014-01-27 | 2014-09-30 | Electronic type indicating meter |
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| JP (1) | JP6116493B2 (en) |
| CN (1) | CN104808045B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109782051A (en) * | 2019-01-04 | 2019-05-21 | 重庆和航科技股份有限公司 | Load current abnormity early warning device, system and method based on Internet of Things |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7248382B2 (en) * | 2017-09-20 | 2023-03-29 | 大崎電気工業株式会社 | electronic electricity meter |
| JP7091149B2 (en) * | 2018-05-30 | 2022-06-27 | ホシザキ株式会社 | Cool storage |
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| CN109782051A (en) * | 2019-01-04 | 2019-05-21 | 重庆和航科技股份有限公司 | Load current abnormity early warning device, system and method based on Internet of Things |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6116493B2 (en) | 2017-04-19 |
| CN104808045B (en) | 2018-04-13 |
| JP2015141018A (en) | 2015-08-03 |
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