JP5827047B2 - Power consumption status display device - Google Patents

Description

  The present invention relates to power use, and mainly relates to a power consumption state display device that easily knows the current consumption state of an AC circuit.

  The watt hour meter measures the amount of power that has passed through the watt hour meter in units of time by measuring the power, which is the rate of work done per second, continuously in minutes, hours, and one day. The types of metering content are broadly divided into watt-hour meters that measure the amount of power (active power) and reactive watt-hour meters that measure the amount of reactive power. In general houses, only watt-hour meters are attached. Yes. From the metering mechanism, there are an inductive watt hour meter with a history of about 100 years and an electronic watt hour meter corresponding to the diversified electricity price menu. Furthermore, the classification by distribution system is divided into single-phase two-wire, single-phase three-wire, and three-phase three-wire systems in Japan, with a current transformer for measuring large currents, and transforming for measuring high and extra high voltages. A vessel is used.

  Conventionally, the metering mechanism of an electronic watt-hour meter generally counts an input converter, a multiplier circuit, an integration circuit that generates a pulse proportional to power, a divider circuit, and a pulse, which convert the voltage to current level of an electronic circuit. Display unit. In the inductive energy meter, the rotational torque proportional to the power is obtained from the rotating magnetic flux proportional to the voltage and current. However, the electronic energy meter statically multiplies the voltage and current by a multiplier. Multiplication methods are roughly divided into analog multiplication and digital multiplication.

  Conventionally, the A / D conversion multiplication method of the electronic watt-hour meter digitally converts the voltage and current waveforms, which are the input elements of the watt-hour meter, with a high resolution respectively by the A / D converter and multiplies the digital moments respectively. Looking for power.

  FIG. 13 is a schematic diagram of a conventional A / D conversion multiplication type weighing mechanism. In the A / D conversion multiplication method, voltage and current waveforms, which are input elements of a watt-hour meter, are each digitally converted with high resolution by an A / D converter, and electric power is obtained by multiplying the digital instants.

JP-A-9-53954 JP 9-322330 A JP-A-12-193696

 NTT Smile Energy Kyoto Shimbun May 11, 2011

  Conventionally, there is a display device disclosed in Japanese Patent Application Laid-Open No. 9-53954 as a display device for measuring the electric energy used in the house. By making it possible to directly read usage charges for electricity, gas, water, oil, etc., and to easily check the difference between the target amount of savings and actual usage charges, it is possible to achieve individual levels at each home, factory, company, etc. Thus, it is possible to easily confirm and manage the savings fee, to improve the individual awareness of energy saving, and to provide a savings fee display device that can greatly contribute to energy saving and obtain the benefits of saving. In the configuration, current data detected by the detection unit is taken into the measurement unit every second and converted into a digital signal by the A / D conversion unit, and then an average value is calculated every minute and transmitted to the measurement unit. In the measurement unit, the A / D data was converted into monetary data by the monetary data processing unit, the data was stored by the data storage unit, and the numerical values such as the target saving amount input from the data input unit were stored in the data storage processing unit. The saving amount is calculated by comparing with the amount data, and the calculated saving amount and the saving target amount are processed by the data display processing unit, and then displayed on the fee display unit by liquid crystal display or the like. It has become.

  Conventionally, as a display device for measuring the electric energy used in a house, for example, there is a display device disclosed in Japanese Patent Laid-Open No. 9-322330. In this device, a current detection element is installed in the vicinity of a branch breaker that branches the main circuit into a branch circuit, and the signal processing means receives the output of the current detection element and calculates the power consumption of each branch circuit. The signal processing means is provided in the main body of the distribution board, and a linear light emitting means in which a plurality of light emitting elements are arranged in a row is provided corresponding to each branch circuit on the lid of the distribution board. ing. These linear light emitting means display the power consumption of each branch circuit calculated by the signal processing means in a bar graph. It has become.

  Conventionally, there is also a display device disclosed in Japanese Patent Application Laid-Open No. 12-193696 as a display device for measuring the electric energy used in the house. In this device, the name is a power usage state monitoring method and its device. Provided is a power usage state monitoring method and apparatus capable of immediately monitoring a power usage state of a consumer such as a general household, a small store or a factory. It is said. The display means for detecting the instantaneous power and the power consumption of the power usage, wirelessly transmitting the detected usage to the receiving means, and receiving and displaying the transmitted signal, stores the target value of the usage And storing the usage amount and the target value in terms of at least the electric power charge. It has become.

  Further, as a display device for measuring the electric energy used in the house, which was announced in a newspaper, there is NTT Smile Energy shown in Technical Document 1. Published on May 11, 2011 in Kyoto Shimbun. A combination of power sensors and WEB sites to “visualize” household power consumption and solar panel power generation to support household energy conservation. Combines a simple power sensor, a display terminal, and a dedicated WEB site, visualizes household power consumption and solar panel power generation, accumulates data on the cloud, and displays current trends and current consumption pace And can be viewed on a PC. We will also provide a mechanism to calculate the amount of carbon dioxide reduction and to participate in environmental conservation activities according to the amount of reduction. It is said.

  However, any of the conventional display devices has a function of displaying numerical values of power consumption or current values of devices connected to the main circuit and the branch circuit, or displaying them in a graph. However, it is not possible to easily grasp the usage status of electricity that is changing every moment in the entire house, office, and facility. In addition, although there is a function of color display and graphing using a liquid crystal panel, the design cost and production cost of the equipment increase. The power monitoring software that can be seen on a personal computer tends to increase the initial equipment cost and system maintenance cost as long as it adds value, which is not what consumers really want.

In addition, regarding electricity usage, the display of accumulated electricity usage is used, and it seems to be convenient because it is displayed in hourly, daily, weekly, monthly, and yearly units. In order to be conscious, rather than displaying the integrated value of electrical energy in a graph, the magnitude of electrical energy that is constantly flowing at the moment is displayed as an instantaneous value, and the consumption state is visually confirmed. Knowing in an easy-to-use way is more familiar as a realistic expression.

  The present invention has been made to solve such problems, and an object of the present invention is to provide a power consumption state display device that can easily measure and monitor electric energy of the entire house.

In order to achieve the above object, the present invention is a display device for displaying a consumption state of a current flowing from a power source through a wiring to a load,
The power consumption state display device includes at least a current measurement circuit, a rectifier circuit, an A / D conversion circuit, a microcomputer, a digital display unit, and a light emitting display unit provided with a plurality of light emitters.
The alternating current that passes through one of the wires generates an alternating voltage in the current measuring circuit, which is converted into a direct current voltage by the rectifier circuit, and the direct current voltage is converted into a pulse signal string by the A / D conversion circuit. In the device that is input to the microcomputer, the pulse signal sequence is calculated by the microcomputer, and digital display is performed on the digital display unit.
A light-emitting display unit with light emitters arranged circumferentially is provided, a digital display unit is provided in the vicinity of the center of the light-emitting display unit, and each light emitter is repeatedly blinked in order according to the pulse of the calculated pulse signal sequence. As the current value of the current measurement circuit increases, the forward speed of the light emitter is increased, and the upper limit is set so that the forward speed of the light emitter becomes the maximum at the highest current value that can be measured by the current measurement circuit. A power consumption state display device having a structure provided with the above.

An example of the schematic diagram of the power consumption state display apparatus which concerns on one Embodiment of this invention An example of a schematic diagram of a wireless system of the power consumption state display device in the embodiment An example of a front view of a power consumption state display device having light emitting display units arranged in a loop in the embodiment. An example of a perspective view of the power consumption state display device of the light emitting display unit arranged in a loop in the embodiment. An example of a perspective view of a power consumption state display device provided with a color LED and a milky white hood at the center in the embodiment. An example of a perspective view of a power consumption state display device provided with a digital display at the center of the milky white ring-shaped hood in the embodiment. An example of a perspective view of a power consumption state display device provided with a digital display at the center of the milky white ring-shaped hood in the embodiment. An example of a perspective view of a power consumption state display device in which a digital display unit is provided outside the light emitting display unit in the embodiment. An example of a perspective view of a power consumption state display device provided with a light emitting body of a full color LED and a digital display unit in the center in the embodiment. An example of a perspective view of a power consumption state display device provided with a light emitting display unit in which light emitters are arranged linearly and a digital display unit in the embodiment. An example of a perspective view of a power consumption state display device provided with a light emitting display unit and a digital display unit in which full-color LEDs are arranged in a straight line in the embodiment. An example of a wiring diagram of the power consumption state display device in the embodiment Schematic diagram of a metering mechanism of a conventional A / D conversion multiplication electronic watt-hour meter

  Hereinafter, embodiments of the present invention will be described with reference to FIGS. This allows one skilled in the art to make the devices or systems according to the present invention and to implement the methods associated therewith. The patentable scope of the invention is set forth in the appended claims, and the claims are intended to include various other embodiments that can occur to those skilled in the art.

  The display device of the present invention is a phenotypic display device that directly stimulates a visual sense so that a human can easily understand the value of a current flowing through a circuit, and is a display device that is mainly used for measuring electric energy. As described in this specification, this display device has a broad meaning as long as it has the ability to determine the amount of flowing electric energy when used to express the amount of flowing electric energy. It may be expressed as “meter”.

FIG. 1 is an example of a schematic diagram of a power consumption state display device according to an embodiment of the present invention. A transformer and a resistor are used as a current measuring circuit. In the figure, a display device 4 that displays the current consumption state that flows from the AC power source 1 through the wiring 2 to the load 3 and returns to the AC power source 1,
The power consumption state display device 4 includes a current transformer 5, a rectifier circuit 6, an A / D converter circuit 7, a microcomputer 9, and a light emitting display unit 12 provided with a plurality of light emitters 11 arranged in a loop. And
An alternating current through which one of the wires 2 passes through the current transformer 5 causes an induced current in the current transformer 5 by mutual electromagnetic induction, and the induced current is a resistor 13 connected to both ends of the current transformer 5. An AC voltage is generated in the signal, and the AC voltage is converted into a DC voltage by the rectifier circuit 6, and the DC voltage is converted into a pulse signal string 8 by the A / D conversion circuit 7 and sent to the microcomputer 9, and the pulse signal Column 8 is computed by the microcomputer,
Each of the plurality of light emitters 11 arranged in a loop is made to repeatedly blink in accordance with the DC voltage of the rectifier circuit 6 and arranged in the loop as the DC voltage of the rectifier circuit 6 increases. The power consumption state display device 4 includes the light emitting display unit 12 that performs pseudo rotation by increasing the forward feed speed of the plurality of light emitters 11.
In addition, the light emission display part 12 which light-emits the light-emitting body 11 arrange | positioned in the loop shape in order forward repeats the blinking order advance. The light-emitting bodies 11 of the light-emitting display unit 12 are not limited to a single row, and may be a plurality of rows. Further, the arrangement in a loop shape may be any arrangement as long as the light emitter 11 can emit light endlessly, such as a circle, an ellipse, a polygon, and a heart shape.
Although only one current transformer is shown in the drawing, it is necessary to increase the number of current transformers due to the difference between the single-phase three-wire system and the three-phase three-wire system other than the single-phase two-wire system.
Although not shown, a smoothing circuit or an amplifier circuit is provided as necessary.
In the figure, the current transformer 5 and the resistor 13 are used as the current measuring circuit, but a Hall element may be used as a sensor of the current measuring circuit. When the Hall element applies a magnetic flux proportional to the load current to the sensor surface, a Hall voltage proportional to the product of the magnetic flux and the Hall current is generated between the output terminals. The use of a Hall element for the sensor of the current measurement circuit is a conventional means and is not shown in the figure.

  FIG. 2 is an example of a schematic diagram of a wireless system of the power consumption state display device in the embodiment. In the figure, an alternating current from the alternating current power source 1 flows through the wiring 2 to the load 3 and returns to the alternating current power source 1. A current transformer 5 is provided so that the wiring passes through the path of the wiring 2. The alternating current passing through the current transformer 5 generates an induced current in the current transformer 5, and generates an alternating voltage in the variable resistor 13 connected to both ends of the current transformer 5. The alternating voltage is generated by the rectifier circuit 6. The DC voltage is converted into a DC voltage. The DC voltage is converted into a pulse signal train 8 by the A / D converter circuit 7 and sent to the transmitting circuit 14, transmitted from the transmitting antenna 15 A, captured by the receiving antenna 15 B, and then passed through the receiving circuit 16. 9 is the same as FIG.

  FIG. 3 is an example of a front view of the power consumption state display device having the light emitting display units arranged in a loop shape in the embodiment. In the figure, the light emitter 11 of the light emitting display section 12 has a structure in which each light emitter 11 of the light emitting display section 12 sequentially flashes according to the voltage generated in the rectifier circuit 6.

  FIG. 4 is an example of a perspective view of the power consumption state display device of the light emitting display unit arranged in a loop shape in the embodiment. The light-emitting body 11 of the light-emitting display unit 12 may be anything as long as it emits light when current passes through. However, the LED is most suitable at the present time in terms of instantaneous lighting performance, durability, downsizing, and price. In FIG. 4, the LED as the light emitter 11 of the light emitting display unit 12 is attached in an oblique direction. Since the LED has directivity, when the display device 4 is installed near the top of the center of the room, it has a feature that the visibility is improved regardless of the direction in the room. The same is true when it is installed on a wall. However, if a high-intensity LED or an ultra-high-intensity LED is used, the light emission state is much brighter than that of a normal LED. An LED is a light emitter that consumes very little current, and a display device that consumes less current can be obtained by designing an appropriate illuminance. In addition, when it displays with LED in this invention, it means a light emitting diode (gakko diode). A light emitting diode is a semiconductor element that emits light when a voltage is applied in the forward direction. The light emission principle uses the electroluminescence effect. Organic electroluminescence is also included in LEDs for classification.

   FIG. 5 is an example of a perspective view of a power consumption state display device provided with a color LED and a milky white hood at the center in the embodiment. As described in claim 2, the color LED 17 is provided with a red LED 18A, a green LED 18B, and a blue LED 18C at the center of the light emitting display unit 12 in which a plurality of light emitters 11 arranged in a loop shape is provided, and a rectifier circuit 6 is operated by the microcomputer 9 to change the duty ratios of the red LED 18A, the green LED 18B, and the blue LED 18C, and to change the light emission rate of each LED so that the red LED 18A covered with the milky white hood 19 is green. This is a display device 4 that causes a person who sees light emitted from each of the LEDs 18B and 18C to cause a color change of various colors as a mixed color.

  FIG. 6 is an example of a perspective view of the power consumption state display device in which the digital display unit 22 is provided at the center of the milky white ring-shaped hood 20 in the embodiment. Inside the milky white ring-shaped hood 20, a plurality of full-color LEDs 21 in which red LEDs, green LEDs, and blue LEDs are integrated are arranged, and the voltage change of the rectifier circuit 6 is calculated by the microcomputer 9 so that the red LEDs, green As a result of changing the duty ratio of LED and blue LED and mixing the light of each LED with the person who sees milky white ring-shaped hood 20, various color changes such as yellow, orange, purple and white as well as red, green and blue It becomes the structure which produces. In the center is a digital display 22. The digital display unit 22 may be an LED or a liquid crystal display. By switching with the mode switch 23, the display of the digital display unit 22 can be displayed as instantaneous power, charge display, integrated power display, carbon dioxide emission, room temperature display, time display, and the like. This switching can be switched at regular intervals. In addition, if the electric power display is integrated and converted into a yen to display the usage fee for a certain period of time, such as hourly or daily, you will have a deeper interest in the consumption of electrical energy. .

   FIG. 7 is an example of a perspective view of a power consumption state display device in which a digital display unit is provided at the center of the milky white ring-shaped hood in the embodiment. It is a perspective view of the display apparatus 4 which provided the milky white ring-shaped food | hood 20 in the light emission display part 12 which has arrange | positioned the light-emitting body 11 in loop shape, and has the digital display part 22 in the center. In FIG. 7, the light emitters 11 are arranged in an inclined manner toward the center. When the light emitter 11 is an LED, there is a problem of directivity. By installing the light emitter 11 at an angle, there is an effect of improving visibility even when viewed from any direction in the room. In the center is a digital display 22. The digital display unit 22 may be an LED or a liquid crystal display. When the digital display unit 22 is a liquid crystal display, an image can be displayed. By switching the mode switch 23, the image display unit can be switched variously to display more complicated information.

  FIG. 8 is an example of a perspective view of a power consumption state display device in which a digital display unit is provided outside the light emitting display unit in the embodiment. It is a perspective view of the display apparatus 4 which has the digital display part 22 outside the light emission display part 12 which has arrange | positioned the light-emitting body 11 in loop shape. The display device 4 provided outside the light-emitting display unit 12 in which the digital display unit 22 is arranged in a loop shape has a shape suitable for downsizing the whole. As described above, the LED mounting angle is changed as a method for improving the visibility due to the problem of the directivity characteristics of the LED. However, since the mounting angle becomes a problem during mass production, a planar arrangement is desirable. Recently, the performance improvement of the LED has been considerably improved, and a power-saving high-brightness LED has been mass-produced. If the performance improvement of this LED is taken into consideration, the planar arrangement is good for improving the mass productivity.

FIG. 9 is an example of a perspective view of the power consumption state display device in which the light emitter of the full-color LED and the digital display unit are provided in the center in the embodiment. A plurality of light emitters 11 arranged in a loop are configured by a full color LED 21 in which a red LED, a green LED, and a blue LED are integrated, and by causing a microcomputer to calculate a voltage change of the rectifier circuit 6, the red LED, green This is a display device that changes the light emission rate of each LED by changing the duty ratio of the LED and the blue LED, and causes a color change as a mixed color to the person who sees the LED. By replacing with, it is possible to emit light with a favorite color. It becomes easy to call attention by making the full color LED 21 into the light emitter 11. For example, blue is a very energy-saving current consumption state, green is a normal region, yellow is a caution region, red is a caution region, and the monitoring of the operation of the device is very easy to determine. Since these full-color LEDs 21 also change the pseudo rotation speed of each LED according to the voltage of the rectifier circuit 6, it is easy for the operator himself to visually notice the management of the current consumption state. Becomes an easy-to-manage display device. It becomes easy to evoke energy saving. Moreover, since the number of parts can be saved, the manufacturing efficiency of the display device is improved.

  FIG. 10 is an example of a perspective view of a power consumption state display device provided with a light emitting display unit and a digital display unit in which light emitters are arranged linearly in the embodiment. It has a light emitting display section in which a plurality of light emitters 11 are arranged in a straight line, and in accordance with the DC voltage of the rectifier circuit 6, the light emitter 11 at one end blinks in a state of repeatedly blinking. After the end light-emitting body 11 is blinked, the first light-emitting body 11 is blinked again. As the DC voltage of the rectifier circuit 6 increases, the forward speed of the light-emitting body 11 is increased, and the maximum set voltage value is set. Then, the respective light emitters 11 are blinked at such a high speed that it cannot be determined that the eyes are always lit by human eyes, and the display device 4 having the light emission display unit 12 is obtained. In the figure, there is a digital display portion at the top of the light emitting display portion, but it may be at the bottom or the side. Here, the arrangement form of the light emitters is expressed as a straight line, meaning that it is from one end to the other end, and does not indicate an endless state as it is arranged in a loop shape, but always indicates a structure with both ends. . Therefore, it may be an arc or a wave. The light emitter may be a plurality of lines. The thing of FIG. 11 is interpreted similarly.

  FIG. 11 is an example of a perspective view of a power consumption state display device provided with a light emitting display unit and a digital display unit in which full-color LEDs are linearly arranged in the embodiment. It has a light emitting display section in which a plurality of light emitters are arranged in a straight line, and the light emitter is composed of a full color LED 21 in which red LEDs, green LEDs, and blue LEDs are integrated, and causes the microcomputer to calculate the voltage change of the rectifier circuit 6. By changing the duty ratio of the red LED, green LED, and blue LED, the light emission rate of each LED is changed, and a display device that causes a color change as a mixed color to the person who sees the LED is emitted. By replacing the body with the full color LED 21, it is possible to emit light with a favorite color and to attract attention. For example, blue is a very energy-saving current consumption state, green is a normal area, yellow is a caution area, red is a caution area, and the monitoring of the operation of the device is very easy to determine. Since these full-color LEDs 21 also change the pseudo flow speed according to the voltage of the rectifier circuit 6, it is easy for the operator himself to visually notice. It becomes a display device that is easy for everyone to manage, and it is easy to encourage energy saving. In addition, the entire display device can be easily downsized. Although the full color LED 21 is shown in FIG. 11, the full color LED 21 may be used as a light emitter in other figures. Here, the LED expressed as the full color LED 21 is one in which three LEDs of red, green, and blue are sealed in one package, and an infinite color can be displayed by changing the brightness of the three LEDs. Point.

FIG. 12 is an example of a wiring diagram of the power consumption state display device in the embodiment. The wiring diagram will be described below. As an embodiment of the present invention, the light emitter 11 uses LEDs in this wiring diagram, and has a structure in which 12 LEDs are sequentially blinked. Since the microcomputer 9 used in this embodiment incorporates an A / D conversion circuit, it is not shown in the wiring diagram. The blinking speed can be changed by software preprogrammed in the microcomputer. Therefore, the alternating current passing through the transformer 5 generates an alternating current by induction electromagnetic action, and the generated alternating current appears as an alternating voltage at both ends of the resistor 13, so that it is converted into a direct current voltage by the rectifier circuit 6. The converted DC voltage is adjusted to an appropriate DC voltage by adjusting the variable resistor 25 before being input to the microcomputer. The appropriate voltage is determined by a microcomputer. In this embodiment, the voltage generated at the maximum consumption current is set to 5 volts. When the switch 27 connected to the battery 26 is turned on, the LED, which is the light emitter 11, starts to blink in sequence. The speed of forward flashing is proportional to the magnitude of the alternating current passing through the current transformer 5. In the wiring diagram of the present embodiment, the light emitters 11 are arranged in a straight line. However, in the case of arranging in a loop, LEDs 1 to 12 are arranged in a loop, and LEDs 1 and 12 are arranged. May be arranged next to each other.

The present invention resides in that the power monitoring state is configured in an easy-to-understand expression system. The main component of the display device of the present invention is provided with a light emitting display unit having a plurality of light emitters arranged in a loop or in a straight line, and is used as a circuit for measuring alternating current at both ends of a transformer through which alternating current passes. The voltage generated in the provided resistor is converted into a DC voltage, and the change in the DC voltage is proportional to the change in the AC current. Therefore, the display means converts the blinking speed by a microcomputer operation according to the voltage change. It is that. Unlike conventional display devices, a plurality of light emitters arranged in a loop or in a straight line, when flashing forward, the light creates a pseudo rotation or pseudo flow, and the light flashes in a flow depending on the power consumption state. Increases speed. In the case of pseudo rotation, the rotational speed is increased, and in the case of pseudo flow, the speed of the pseudo flow is increased. The display device of the present invention displays the magnitude of the current flow at the speed of light movement, and the current consumption state display means of the present invention is compared to conventional analog display and digital display means, The visibility is significantly improved. Therefore, the magnitude of the power consumption state can be discriminated well even from a distant place, and it is very easy to detect a current change as a sensory change even from a close place. Furthermore, according to the present invention, a color display of the power consumption state is possible by using a full color LED as the LED. Compared with a conventional display device, it becomes easier to determine the magnitude of the power consumption state, and the visibility can be further improved. Moreover, even if the instrument is in any operating state, the state can be determined at a glance.

  Although it is regarding the experiment of visibility, below, the experimental data of the comparison of the visibility of normal 7 segment LED and the display apparatus of this invention are shown. In the case of a red light emitting 7-segment LED with a character height of 20 millimeters, the distance of about 6 meters was the limit for reading character information. In the case where LEDs are arranged in a loop using the display device of the present invention, in a display device in which twelve 5φ white LEDs as light emitters are arranged with a diameter of 100 mm, even if they are separated by about 30 meters or more, pseudo rotation The change in speed was easily confirmed. This experiment proves that there is a viewing distance difference of 5 times or more. In addition, even when arranged in a straight line, it was possible to confirm the change in the speed of the pseudo flow at the same distance if the arrangement pitch of the light emitting elements was the same as the loop arrangement. The comparative measurement experiment was obtained on average from not only the results of experiments for persons with normal visual acuity, but also the numerical values obtained by causing myopic eyes to wear glasses. Even with LCD (liquid crystal display), when the character height was the same, there was no significant difference in the character recognition ability.

  In addition to the light-emitting display part of the main component of the present invention, the power consumption state can be displayed in color, and the digital display part is added near the center of the light-emitting display part, so that the power usage state can be expressed in detail. become able to. The numerical display on the digital display unit can display instantaneous power, maximum power, charge, integrated power, room temperature, time, and percentage display of power supply capacity by switching the mode selector switch. This switching can be switched at regular intervals. In addition, if the electric power display is integrated and converted into a yen to display a usage fee for a certain period of time, such as hourly or daily, it will have a deeper interest in the consumption of electric energy. Furthermore, it is possible to incorporate a means for accumulating data and easily taking it outside. In this way, it is possible to manage data with a personal computer or the like, and it is possible to manage advanced power usage by recording and analyzing data logs. The data may be transmitted to a personal computer or a dedicated device, or may be recorded on an SD card or USB memory.

In addition to the light-emitting display part of the main component of the present invention, the power consumption state can be displayed in color, the digital display part is added in the middle, and the alarm function is added, so what is the current state of maximum consumption? You can now warn of a percentage. This has a deeper interest in the consumption of electrical energy. Further, a synthesized sound of various music may be used instead of the alarm sound. In addition, a plurality of light emitters, which are main components of the present invention, are configured by full-color LEDs in which red LEDs, green LEDs, and blue LEDs are integrated, and the voltage change of the rectifier is calculated by a microcomputer so that the red color is obtained. The duty ratio of the LED, green LED, and blue LED is changed to change the light emission rate of each LED, causing a person who sees the LED to change the color as a mixed color.

  Moreover, when the plurality of light emitters as the main constituent elements of the present invention are arranged in a straight line, the number of parts and the area of the base can be saved. In order to create a pseudo flow state of blinking light, it is necessary to blink one by one at intervals of light emission intervals of the light emitters. When the flashing of light reaches from one side to the other, the first luminous body is made to flash and endlessly performed.

  The display device of the present invention has a structure obtained by evolving a conventional power meter, and has an expression means that allows the installer to easily check the power consumption state. Conventional wattmeters used in industrial equipment are generally an analog type having a so-called needle type pointer and a digital type displaying a numerical value. Recently, there are methods that display both digital and bar display, and graph display. In any of the conventional systems, when the power usage state is a constant value, the display of the meter device is in a stationary state. A feature of the display device of the present invention is that the amount of consumption during power use is displayed by pseudo rotation or pseudo flow of the light emitter. Therefore, as long as power is being used, the consumption state is displayed as a pseudo-rotation or a pseudo-flow as if the light emission is rotated. The speed of pseudo-rotation and pseudo-flow of the light emitter changes according to the amount of power consumption, so the visibility is very good, and the power consumption status and total power of each device can be seen even from a distance. Easy to check power consumption. It becomes a display device suitable for the management of electric energy in ordinary houses, businesses, and facilities.

  Since the display device of the present invention is required to accurately manage the amount of electric energy delivered to such vehicles as electric vehicles and hybrid electric vehicles have become widespread, It can be used to manage the usage status of hybrid electric vehicles. Electric vehicles and hybrid electric vehicles can easily monitor the energy consumption state according to the difference in driving conditions such as the difference between slopes and flat roads, slope differences, speed differences and acceleration conditions. Moreover, it can be used not only for displaying the electric usage state of the electric vehicle, but also for monitoring the charging state of the electric vehicle. For example, if the maximum charging capacity of the charger is set to 100% and the light emitters arranged in a loop at that time are set to rotate to the maximum, it is easy to visually check how much the charging state is. Moreover, the state of appropriate charge can be displayed in color by adopting a full color LED. When the power source is only direct current, an inverter circuit is added to the circuits shown in FIGS. 1 and 2, and the display can be obtained by measuring the frequency converted.

  The display device of the present invention can be used as a power saving effect evaluation device when a machine tool or an industrial machine is used. Various machine operating conditions can be set, and the actual value at that time can be displayed as a numerical value in percent expression, which can be easily monitored by anyone. Furthermore, the display device of the present invention in which the light emitters are arranged in a loop shape improves visibility because the light emitters of the light emitting display portion appear to rotate. Therefore, it is possible to measure the power consumption pattern and the work transmission efficiency. By measuring the work transfer efficiency, the energy loss of the machine can be evaluated. In addition, the machine can be operated efficiently, and the power saving effect can be evaluated efficiently. It is possible to easily manage the operation status by installing each individual device such as an air conditioner and a refrigerator.

  The display device of the present invention can also be used as an abnormality information output device. An abnormal state of the apparatus often appears as an abnormality of power consumption. A display device that looks like a light emitting body arranged in a loop shape like the present invention has good visibility, so that an abnormal state can be detected and an operator or administrator can be notified of the abnormality immediately. it can. The abnormality information may be only the pseudo-rotation display of the light emitters arranged in a loop shape, but it is more effective if it is linked with the color of the light and the alarm sound.

  The display device of the present invention can also manage the wear state of the blade. When the machine tool uses a blade, the load on the motor varies depending on the feed rate, the cutting depth, the blade rotation speed, the degree of wear of the blade, and the like. Therefore, the maximum performance of the machine capability can be exhibited for each unit according to the material of the workpiece. When humans were operating the machine, force was fed back to the hand turning the handle, but it was difficult to grasp what kind of load was applied to a machine such as a fully mechanized machining center. Yes. Under such circumstances, this type of display device capable of visually confirming the current flow of electricity can exhibit the performance of the machine tool to the maximum.

The display device of the present invention can be used to manage the cutting of the grinding device. The grinding apparatus uses a grindstone. The motor load varies depending on the feed rate, grinding amount, rotational speed, type of grindstone, and the like. Therefore, the maximum performance of the machine capability can be exhibited for each unit according to the material of the workpiece. In addition, since the grinding amount is reduced and the current consumption is reduced in the final process, it can be observed as a pseudo rotation or a pseudo flow appearing on the display device.

  The display device of the present invention can be used in a food production device or a storage device. If the manufacturing device uses a heat source, the preheating stage, the actual heating stage, the steaming stage, etc. can be monitored well by looking at the pseudo-rotation state of the LED even if it is far from the equipment. . Moreover, if it is a cryopreservation apparatus, it can confirm visually now what kind of electric power use condition is now.

  The display device of the present invention can be used as a monitoring device for the occupancy status in a house. Usually, each room occupant uses some kind of electricity. By using this device, the power consumption status can be managed in a unified manner. Of course, measurement is possible even with a conventional digital display device, but the light emitting display unit arranged in a loop shape of the present invention has a feature of very good visibility because the light appears to rotate by forward blinking. is there. It becomes easy to grasp the power usage status of each room, and therefore it becomes easy to grasp the activity status of each life. Such a management situation enables ideal family management as moderate monitoring between families.

  The display device of the present invention is suitable for management of power generation devices using natural energy such as wind power generation, solar power generation, biomass power generation, and geothermal power generation. This is because the light-emitting display unit arranged in a loop like the present invention has a feature that the light-emitting body feels as a pseudo-recognition for visual recognition, and the operation rate of the power generation capacity of each generator is efficiently monitored. become able to. Visually moving and moving things have features that are easy for humans to focus on. Therefore, the display effect is enhanced by making the display device specially large. In public facilities, it is necessary for many people to be aware of the state of electrical energy generation and use, and by installing the display device of the present invention, people who use public facilities can generate and use electrical energy. On the other hand, enlightenment effect can be expected.

  When the display device of the present invention is used in a power generation management and power consumption management device such as solar power generation, the pseudo-rotation direction of the light-emitting display unit arranged in a loop is purchased, and the power purchase is sold clockwise. Electricity can be displayed in such a way that the direction of rotation can be changed, such as turning counterclockwise. Further, by using two display devices of the present invention, a display device dedicated to power purchase or power sale can be obtained. As a result, it is possible to instantly know which rotation state is present, and it becomes possible to more efficiently monitor the operation rate of the device. Or, by knowing the direction of the pseudo flow by linear arrangement, it is possible to understand power purchase and sale and the size of the power by the speed and direction of the flow. In addition, if the color change of the color LED is used, the visual recognition effect is further enhanced.

  The display device of the present invention may be operated by a microcomputer according to the magnitude of the current of the AC wire passing through the current transformer, and an alarm sound may be sounded when the set current value is reached. In this way, not only the visual recognition effect but also the auditory recognition can be used to quickly notify that the value of the dangerous area has been reached. In recent years, in order to suppress the peak of power consumption, electricity tariff contracts between power supply companies and large consumers of power, such as factories, high-rise commercial buildings, hotels, hospitals, etc., are based on demand power. The basic usage fee is determined. The display device of the present invention is an effective device that can be used for the purpose of suppressing such demand power.

  The display device of the present invention is also suitable for managing vending machines and the like. It is also suitable for managing power consumption at convenience stores and supermarkets. Calculation may be performed by a microcomputer, and the administrator may be notified by an alarm sound or light color when the set current value is reached. By doing so, it is easy to distinguish the economic area, the normal area, and the dangerous area, and anyone can easily inform the manager of the situation.

  As a place for installing the display device of the present invention, a kitchen wall or a dining room where everyone gathers is suitable for general households. For companies, the wall of the president's room or the manager's room and the top of the office space are also suitable. It may be installed for each room or for each building. If it is a public facility, it is suitable to be installed at the entrance, and it may be managed in each room. It seems to have a display effect even if it is installed outside the building. It is important to promote the visualization of the state of electrical energy usage at each household, each company, and each facility. Even in Germany, a country that is said to be an advanced country, the visualization of electrical energy has not yet progressed. This is because the meter reading work is once a year, and it is a system in which the usage results for the previous year are divided into 12 months in the following year. The display device according to the present invention is a device intended for instantaneous electrical energy display, and is particularly effective because the visual effect of pseudo-rotation of the light emitter is added to management for the purpose of power saving of air conditioners and lighting.

  The display device of the present invention may be installed in a house, a facility, a business office, etc., and the necessity will be recognized again. This is easy to understand if compared to a car. Most cars have two types of meters. Speedometer and distance meter. The engine tachometer, which was once attached only to sports-type cars, is also installed in ordinary passenger cars. Of course, a fuel gauge is also attached. There is a clock and a thermometer.

  With regard to watches, it is an interesting question whether the analog method is better or the digital method is better, and each has advantages and disadvantages, but which is on the market. It can be said that it is determined according to hobbies, and it is determined by convenience and price. Some people also have status symbols. The problem of this type should be that both types can be selected, and the present invention can be said to be a mixed type of both.

  It is no exaggeration to say that the management of the electrical energy we consume is almost invisible at present. This is because, usually, each household, factory, company, etc. is informed only of the accumulated power. Moreover, the integrating wattmeter is generally installed outside the building. In most cases, the integrated wattmeter knows the value of the integrated electric energy by reading the meter once a month. An integrating wattmeter is equivalent to a distance meter in a car. Moreover, the distance meter is in a strange state installed outside the car.

  We must wake up to this strange energy management situation. To escape from this situation, the user himself / herself must install a display device of this kind of power consumption state necessary for managing power consumption. When a new house is built, it should become a natural society to install this kind of meter. At the time of new construction, there is no facility for transmitting data wirelessly, and no waste of electrical energy is required to maintain the device. However, at present, most of the installation will be in existing buildings that do not have this kind of management meter, so it is necessary to prepare for these situations. This is the wireless display device shown in FIG. In the case of transmission with a radio signal, it is possible to save the construction cost because the signal line can be omitted indoors.

  Hereinafter, a power consumption monitoring method using this display device will be described. The present invention is a display device whose purpose is to make a user aware of power saving. For this purpose, first, it is necessary to know the “contract amperage value”, which is the upper limit value of the total power supply at home. To do so, check the amperage of the breaker in the distribution board. A breaker is a current limiter for contracts that is used when a power supply and demand contract called an “ampere system” is signed between several Japanese power companies and customers. It is also called a limiter or service breaker. is there. There is also a shut-off function that opens and closes the electric circuit. In general households, it is often placed on the left side of a distribution board installed at the entrance or hallway. There are several types of contracts from 10 amperes to 60 amperes, each with an ampere breaker with a different “ampere value”. Ampere breakers are installed for the purpose of automatically shutting down electricity when the consumer uses electricity exceeding the maximum power contracted between the power company and the customer, that is, the “contract amperage value”. It is a device and is unique to the electric power company. The current transformer is installed in the circuit after the contract breaker. In Japan, each power company has its own contract system for this power contract.

  Hereinafter, the usage method at the time of using for the general house where the demand for the display apparatus of this invention is most expected is demonstrated. In general houses, the main power circuit breaker varies from 30 to 100 amps, but the average is 60 amps. For example, if the main power source is based on a 60 ampere residence, when the power source is a single-phase three-wire system, the 200 volt power distribution is divided into 100 volt and 100 volt above the neutral point in the switchboard. Therefore, one current transformer is required for each wiring, and the total value of each current transformer is calculated. When the main breaker of the switchboard for 200 volt power transmission is 30 amperes, the power supply converted to 100 volt has an upper limit of 60 amperes. When the main circuit breaker of the distribution board for 200-volt power transmission is 50 amperes, the power supply converted to 100 volts has an upper limit of 100 amperes.

  Now, if the upper limit value of the total power supply of the power distribution board is 100 amperes, 100 volts is multiplied by 100 amperes, and 100 × 100 = 10,000 in one hour, that is, up to 10 kilowatt hours. This is the upper limit of power consumption. In the display device of the present invention, the DC voltage is set to 5 volts by adjusting the rectifier circuit so that the upper limit value of 100 amperes becomes the maximum number of rotations of the light emitting display portion of the display device. If the current consumption is 100 amperes and the light emitting display is 10 revolutions / second, the DC voltage of the rectifier circuit is 0.5 volts at 10 amps, and the pseudo rotation of the light emission display is 1 revolution / second. At 1 ampere, the DC voltage of the rectifier circuit is 0.05 volts, and the pseudo-rotation of the light emitting display is 0.1 rotation / second. If there are ten light emitters in the light emitting display portion of the display device, the blinking state moves one by one every second. If one ampere is continuously consumed for one hour with a 100 volt power supply, it will consume 100 watts. If this state is continued for 24 hours, it will be 2.4 kW, and if it is continued for 30 days, it will be 72 kW. If it continues 365 days, it will be 864 kilowatts. Since there is a statistical value that pays about 100,000 yen per year on average per house, the annual average power consumption is calculated back to about 22 yen / kilowatt, which is the average electricity purchase price for ordinary households. Then, 100,000 / 22 = 4,545, about 4,545 kW / year, and about 378 kW in one month. When this value is corrected per hour, 378 / (30 × 24) = 0.524, that is, an average of about 524 watts is consumed per hour. That is, the calculation consumes about 5 amps per hour. When the power consumption is about 5 amperes per hour, the pseudo-rotation of the light emitting display unit is 0.5 rotation / second, that is, one rotation in 2 seconds. The rotational speed at which the pseudo-rotation of the light-emitting display unit is performed once every 2 seconds is an average value derived from an annual value, and is usually in various consumption states in a general household. When brewing coffee, using a microwave oven, cooking rice, when the refrigerator is operating, when the air conditioner is operating, while watching TV, when lighting, etc. As the operating state of the device changes, the state of power consumption changes every moment, and the pseudo rotation speed of the light emitting display portion of the display device changes each time. This change is displayed not only as a change in the pseudo rotation speed but also as various color changes. Regarding color indication, for example, if you express blue up to 250 watts, green up to 500 watts, yellow up to 1 kilowatt, orange up to 2 kilowatts, orange, 4 kilowatts to red, the color concept and the state of power usage It is easy to contrast. More specifically, various numerical displays can be displayed simultaneously. An alarm can be set, or electronic music can be used instead of the alarm. It should be noted that the flashing of the illuminant may be started for the first time from the target position, or may be started for the first time from several divided portions. The reason why the maximum number of revolutions of the light emitting display unit is set to 10 revolutions / second is that the human recognition limit exceeds this value. This is because, in the case of pseudo rotation, if there are 10 illuminants in one rotation, the illuminant repeats blinking 10 × 10, that is, 100 times per second. The AC current has 50 cycles and 60 cycles, but exceeds that value, and it is impossible for the human eye to discriminate whether it is blinking or constantly lit. Therefore, in order to make it possible to determine that blinking is always lit at the upper limit setting value, it is necessary to reduce the upper limit value of the speed of pseudo rotation or pseudo flow.

  The display device of the present invention is not a device intended to accurately measure the power itself. Hereinafter, description will be made with reference to the electric power sent to a general household. In the case of 100 volt power distribution, the power supplier (electric power company) is supposed to transmit power within a range of 101 volts plus or minus 6 volts. Depending on whether the measurement is on the switchboard or the outlet, the supply voltage drops for a moment when the motor starts up, but is almost constant. Among conventional power measurements, the electronic measurement method is an A / D conversion multiplication method. In the power measurement of the present invention, the power supply voltage is measured only for the first time, and is not measured later. This is because the voltage can be regarded as almost constant in the practical state of power. Assuming that the power supply voltage is constant, multiplying the measured current value by a constant voltage value gives watt = volt × ampere. The AC measurement has a real problem that the effective value must be calculated, but the voltage measurement can be omitted by using the present invention. By eliminating the need for a complex voltage / current multiplication circuit, there are no parts for the multiplication circuit, resulting in low cost production.

  In addition, the display device of the present invention can be manufactured at a very low price even when compared with other electronic measurement methods. However, this display device can perform measurement with considerably high accuracy as long as the linearity of the current transformer is excellent. The world is interested in power saving, but there is a real need for power saving during the time of day when it is likely to be the maximum power usage in the daytime. The display device of the present invention also has the ability to store the maximum power consumption value of the day, and can be compared with the previous day. Also, by setting an alarm, it is possible to sound an alarm when the maximum power consumption value exceeds the set value. Conventional power monitors for liquid crystal screen displays tend to consume more power as the screen size increases. The power consumption of the display device of the present invention is energy saving of a fraction compared to the conventional monitor device because the surrounding LEDs are pseudo-rotated and the liquid crystal display at the center is small.

  The display device of the present invention can save about 6% of the total electric energy used on the earth, considering not only Japan but also worldwide spread. By installing the consciousness reforming type display device of the present invention in each home, it is possible to contribute to the reduction of electric energy without knowing it. As estimated at the present time, the average electricity cost per household is approximately 100,000 yen per year, but 10-20% of the amount can be saved. Cost savings are possible. Considering the widespread use of this type of device throughout Japan, in Japan, which is said to have about 49 million households, the savings will be between 490 and 980 billion yen per year. The annual energy savings from the installation of equipment has the effect of reducing global fossil fuel consumption. Therefore, it can contribute to the reduction of CO2 emissions. The widespread use of this display device that displays the state of consumption of electric energy every moment increases the savings in electricity charges and the effect of reducing CO2 emissions, and contributes considerably to the national interest.

  The 21st century is an era when people who have realized the importance of eco-life practice will take the lead and communicate this new lifestyle to many people. In a living space with a display device that clearly shows the electrical energy consumed by each household in a visible way, you can naturally learn the importance of energy control. It is the beginning of save energy through consciousness reform. Awareness change is a change in attitudes toward having an interest in things. For example, as we are trying to lose weight by dieting, the “recognition of numbers on the scale” is more effective than expected. In other words, experiences and habits of recognizing the number of watt hours currently in use will always be effective. In the display device of the present invention, the recognition process not only looks at numbers, but also can know sensuously the state of current consumption as shown by the present invention as a pseudo rotation or pseudo flow of light. Furthermore, it has the effect of promoting awareness-raising regarding power saving.

  As described above, the present invention has a structure that makes it easy to visually check the instantaneous flow of alternating current, making it easier to call attention, and has a significant advantage in visibility compared to conventional power monitors. In addition to the instantaneous value display of electric power, it has the performance that can display the maximum power display, integrated display, yen conversion display, and CO2 emission amount at the same level as conventional devices, so ordinary houses that use electric power It can be widely applied as a power monitoring device for companies, facilities, industrial equipment, and operation devices.

DESCRIPTION OF SYMBOLS 1 AC power supply 2 Wiring 3 Load 4 Display apparatus 5 Current transformer 6 Rectifier circuit 7 A / D conversion circuit 8 Pulse signal sequence 9 Microcomputer 11 Light-emitting body 12 Light emission display part 13 Resistance 14 Transmission circuit 15A Transmission antenna 15B Reception antenna 16 Reception Circuit 17 Color LED
18A Red LED
18B Green LED
18C Blue LED
19 Milky white hood 20 Milky white ring hood 21 Full color LED
22 Digital Display 23 Mode Change Switch 24 A / D Converter Built-in Microcomputer 25 Variable Resistor 26 Battery 27 Switch

Claims (1)

A display device that displays a consumption state of a current flowing from a power source through a wiring to a load,
The power consumption state display device includes at least a current measurement circuit, a rectifier circuit, an A / D conversion circuit, a microcomputer, a digital display unit, and a light emitting display unit provided with a plurality of light emitters.
The alternating current that passes through one of the wires generates an alternating voltage in the current measuring circuit, which is converted into a direct current voltage by the rectifier circuit, and the direct current voltage is converted into a pulse signal string by the A / D conversion circuit. In the device that is input to the microcomputer, the pulse signal sequence is calculated by the microcomputer, and digital display is performed on the digital display unit.
A light-emitting display unit with light emitters arranged circumferentially is provided, a digital display unit is provided in the vicinity of the center of the light-emitting display unit, and each light emitter is repeatedly blinked in order according to the pulse of the calculated pulse signal sequence. As the current value of the current measurement circuit increases, the forward speed of the light emitter is increased, and the upper limit is set so that the forward speed of the light emitter becomes the maximum at the highest current value that can be measured by the current measurement circuit. A power consumption state display device having a structure provided with the above.

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