JPH0953954A - Saved charge indicator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a saved charge indicator in which the saved charge can be recognized and managed easily on the personal level in each home, factory, office, etc., by a constitution wherein the charges of electricity, gas, city water, oil, etc., can be read out directly and the difference of actual charge from a saving target charge can be recognized easily, and in which the consciousness of energy saving can be enhanced individually to contribute greatly to energy saving and actual profit of saving can be attained. SOLUTION: Current data detected at a detecting section 3 is picked up every second by a measuring unit 2 and converted at an A/D converting section into a digital signal. Average value is then calculated every second and delivered to a measuring unit 1. An amount-of-money data processing section in the measuring unit 1 converts the A/D converted data into an amount of money data which is preserved in a data preserving section. A saving target amount of money inputted from a data input section is then compared with the preserved amount of money data to determine a saved amount of money. The saved amount of money and the saving target amount of money are processed at a data display processing section and indicated by a liquid crystal display at a charge display section 13.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention measures consumption of electricity, gas, water, oil, etc., and makes it possible to directly read the usage charges of these, and set a target saving amount in advance for use. The present invention relates to a reduced-price display device capable of easily confirming a reduced price by comparing it with a fee.

[0002]

2. Description of the Related Art In recent years, world energy consumption has been increasing year by year, and interest in environmental protection and energy saving of the earth has been increasing. Even in Japan, the energy consumption of household appliances is half that of conventional ones.
Despite a modest increase in performance, energy consumption continues to increase. Therefore, it is important to reduce the consumption of energy using earth resources such as electricity, gas, water and oil at companies, factories and homes. To this end, of course, it is necessary to raise the efficiency of equipment that consumes power, etc., but it is also necessary to raise the awareness of energy conservation among individuals who use them. Purchase energy-efficient electrical products etc. with awareness of energy saving,
By setting the target amount for saving electricity usage and frequently turning off the switch, the power saving effect is enhanced and the utility costs can be saved.

[0003] As a conventional device for indicating the savings of electricity, gas, water, petroleum and the like of this type, for example, an integrating wattmeter for measuring the power consumption can be used. This integrating wattmeter is provided near the inlet of the electric wire drawn into the home from outside, and is usually installed outdoors. The electric wire that has passed through the integrating wattmeter is wired to each outlet provided in the home via a breaker, and an electric product is connected to this outlet, so that electricity is consumed. Then, when the electric appliance is used in the home, the power consumption is counted by the integrating wattmeter, whereby the power consumption in the home can be known. Furthermore, in order to know the electricity usage fee from the integrated wattmeter, a conversion table is required. Usually, a power company staff periodically updates the integrated value of the integrated wattmeter at each home, for example, every month. It checks and calculates the fee from the fee conversion table. Other fee display devices for gas, water and the like have a similar form.

[0004]

However, since the above-mentioned conventional saving charge display device is installed outdoors, it is inconvenient to frequently check the integrated amount of electric power and the like, and the usage fee is reduced. In order to know, a conversion table is required and it is not possible to read the usage fee directly from the integrator,
To know the monthly usage charges, you must record the accumulated amount for each month, calculate the difference between these accumulated amounts, and then read it from the conversion table. There is a problem that it is very troublesome to do this, and this annoyance has also been an obstacle to raising awareness of energy saving.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and makes it possible to directly read usage charges for electricity, gas, water, oil, etc., and to easily check the difference between the target saving amount and the actual usage fee. By doing so, each household, factory, company, etc. can easily check and manage the savings at the individual level, improve individual awareness of energy savings, make a significant contribution to energy savings, and make a profit from savings. It is an object of the present invention to provide a savings rate display device that can be obtained.

[0006]

In order to achieve the above-mentioned object, according to the present invention, a first aspect of the present invention comprises a detecting section for detecting a current, and a digital signal for detecting a current signal detected by the detecting section. An A / D conversion unit for converting the digital signal converted by the A / D converter into an amount data; and an amount data conversion unit for storing the amount data converted by the amount data conversion unit. A data storage processing unit, a data input unit for inputting a numerical value such as a preset saving target amount, and a comparison between the saving target amount input from the data input unit and the amount data stored in the data storage processing unit. A savings amount calculation processing unit for calculating; a data display processing unit for performing data processing for displaying the savings amount calculated by comparison and the amount data stored in the data storage processing unit; The amount data processed by the shown processing unit is characterized in that a fee display unit to be displayed in the liquid crystal or the like.

In the present invention, the charge display unit can simultaneously display a preset saving target amount and a saving amount calculated by comparison in the saving amount calculation processing unit, and the saving target amount is set to an actual saving target amount. When the amount is smaller than the amount data, a plus amount is displayed, and when the saving target amount is larger than the actual amount data, a minus amount is displayed.

According to a third aspect of the present invention, the A / D conversion unit is provided in the measurement unit, and the amount data conversion processing unit, the data storage processing unit, the data input unit, the saved amount calculation processing unit, the data display processing unit, and the charge. The display unit is characterized by being provided in the display unit.

According to a fourth aspect of the present invention, the A / D conversion unit, the amount data conversion processing unit, the data storage processing unit, the savings amount calculation processing unit, and the data display processing unit are provided in the measuring unit.
The data input unit and the charge display unit are provided in a display unit.

According to a fifth aspect of the present invention, the detecting unit is detachably attached to an electric wire after an integrating wattmeter disposed in a home, a factory, a company, or the like, and the measuring unit is disposed near the detecting unit. On the other hand, the display unit is arranged at a place where a manager, such as a housewife, a worker, or a maintenance clerk, usually performs a work, such as an entrance or a kitchen in a home, a work site or office of a factory, a facility room of a company, and the like, The unit and the display unit are connected by a cable or a wireless transceiver for transmitting and receiving signals.

According to a sixth aspect, the display unit is formed to be portable.

According to a seventh aspect of the present invention, the detecting section is attached to a flow meter provided in a gas pipe for supplying gas.

According to another aspect of the present invention, the detecting section is attached to a flow meter provided in a water pipe for supplying water.

According to a ninth aspect of the present invention, the detector is attached to a flow meter provided in an oil pipe for supplying petroleum.

According to a tenth aspect of the present invention, the detecting section is attached to a power line of an electric product.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. In the present embodiment, the savings charge display device of the present invention is applied to an electricity savings charge display device.

FIG. 1 shows the overall appearance of the electricity-saving charge display device. In the electricity saving rate display device, the current data taken in by the detecting unit 3 is converted into a monetary value by the measuring unit 2 and displayed on the display unit 1. The display unit 1 is capable of switching charge modes such as a basic charge for electricity, a charge for use, and a late-night charge, inputting various charge data, or inputting a target saving amount. The power consumption is compared with the power consumption to indicate whether the apparatus is in a saving state or overconsumption, or the current power consumption during a certain period is compared with the power consumption during the same period in the past and the amount is displayed. It is possible.

As shown in FIG. 2, a detecting unit 3 for taking in current data into the measuring unit 2 is detachably mounted between, for example, an integrated wattmeter 5 and a breaker 6 of an electric wire 4 drawn into a home, factory, company, or the like. The measuring unit 2 is attached to the display unit 1 as possible. The electric wire 4 is connected to the breaker 6
Is connected to each electric appliance 7 via.

The measuring unit 2 according to the present embodiment is arranged near a breaker 6 as shown in FIG. 1, while the display unit 1 is provided in a kitchen or entrance where a housewife or the like can always check.
Further, in a factory, it is preferable to be arranged near a work place where workers and maintenance managers can easily confirm, or in a maintenance space of a company or office.

The display unit 1 has a box-shaped case body 11.
The operation panel 12 is provided on the surface of the. On the surface of the operation panel 12, there are provided two upper and lower charge display sections 13 for displaying the usage charge and the target amount of saving on a display means such as a liquid crystal display. A saving indicator light 14 that lights up when the amount is less than the target amount and an over-indicator light 15 that lights up when the usage fee is greater than the target amount are provided. It is preferable to use a display device such as a numeric type capable of displaying only numbers, a character type capable of displaying katakana, and a graphic type capable of displaying characters for the fee display unit 13. 15 preferably emits green or red light using an LED.

Below the charge display section 13, a power switch 16 from the left side, a mode switching button 17 for switching various modes described later, numerical value switching buttons 18a, 18b for switching the displayed numerical values up and down, and the switched modes and numerical values. A confirm button 19 for confirming is provided. Further, the display unit 1 performs various operation processes and controls such as a key input circuit 51 for inputting a set value, an amount data conversion process, a savings amount calculation process, a data display conversion process, a data storage process, and the like. A microprocessor (hereinafter, simply referred to as a microcomputer) 52 having a memory capable of storing data (for example, for 10 years), a display circuit 53 for displaying a charge, and an input / output interface for transmitting and receiving signals to and from the measurement unit 2 ( (Hereinafter simply referred to as I / F) 54, a wireless transmitter / receiver 55 with an antenna, and the like.

The measuring unit 2 includes a current transformer (hereinafter simply referred to as C / T) 22 for taking in a current signal from the electric wire 4, an amplifier 23 for amplifying the signal, and an A / D converter 24 inside a rectangular unit case 21. , Microcomputer 2 that performs arithmetic processing such as averaging of captured current data
5. I / F 2 for transmitting and receiving signals to and from display unit 1
6, a wireless transmitter / receiver 27 with an antenna, and the like. The detection unit 3 is configured by connecting a sensor connected to the C / T of the measurement unit 2 in parallel to the outside of the input wire 4 to the breaker 6. Therefore, there is no need to change the wiring of the electric wire 4 or connect the detection unit 3 to other devices.

The display unit 1 and the measuring unit 2
By connecting the F54 and the I / F 26 with the cable 28, or by using the wireless transceiver 55 and the wireless transceiver 27, signals can be transmitted and received in both directions. Wireless transceiver 5
5 and 27 are detachable from the display unit 1 and the measurement unit 2, and when the device must be installed in a place that is not suitable for wiring the cable 28 or when the display unit 1 and the measurement unit 2 are separated from each other. It is preferable to be able to be attached as an option when the wiring is troublesome.

FIG. 4 is a flowchart showing the basic operation of the electricity saving rate display device according to the present embodiment. First, after the power of the display unit 1 and the measurement unit 2 is turned on and the apparatus is started, the mode switching button 17 and the numerical value switching buttons 18a and 18 of the display unit 1 are started.
b, by operating the enter button 19 or the like, a predetermined mode or charge data is input (S1), and the input predetermined mode and numerical value are processed by the key input circuit 51 and set in the microcomputer 52. (S2). After the initial setting, if there is no key input, the last set initial data is stored in the microcomputer 52 as it is (S3).

When predetermined data is set in the microcomputer 52, a current signal is detected from the electric wire 4 by the detecting unit 3 every second, and the signal is amplified by the amplifier 23.
After being converted into a digital signal by the / D converter 24, an average calculation is performed every minute by the microcomputer 25, and the averaged data signal is transmitted from the I / F 26 to the I / F 54 (or from the wireless transceiver 27 to the wireless transmitter / receiver 27). It is transmitted to the microcomputer 52 of the display unit 1 via the transceiver 55) every minute (S4).
The A / D data signal input to the microcomputer 52 is converted into 1 kwh amount data every minute (S5),
Various calculation processes are performed, such as calculation of money data for each month, day, and time, and comparison calculation with a preset saving target money amount (S6). The calculated amount for each year, month, day, and time and the amount calculated for comparison are displayed on the charge display unit 13 via the display circuit 53 from the microcomputer 52 as necessary. At this time, if the usage fee is less than the saving target amount, the green saving indicator light 14 is turned on, and if the usage fee is more than the saving target amount, the red over indicator light 15 is turned on (S7). Further, the amount data converted by the microcomputer 52 is stored in a memory such as an EEPROM as necessary (S8), and the process returns to step S1 again to repeat the above-described process.

Next, a key input operation on the display unit 1 and a display example on the charge display unit accompanying the key input operation will be described.
First, the mode switch button 17 of the display unit 1 is pressed to switch the charge type such as a basic charge of electricity, a use charge, a late-night charge, and the like, and then the numeric switch buttons 18a and 18b are used to change the basic charge of the electric charge according to these charge types. , A basic charge at midnight, or a unit price of the electric energy charge, and finally, the enter button 19 is pressed to confirm the input data. Next, after pressing the mode switching button 17 to switch the time mode type such as year, month, day, time, etc., the user presses the enter button 19 to set a predetermined time mode. For example, pressing the confirm button 19 after setting the year time mode displays the fee for each year in the past several years on the fee display unit 13, and pressing the confirm button 19 after setting the month time mode. And the charge data for each past month are displayed on the charge display unit 13. Further, when the confirm button 19 is pressed again, the total amount for several years or several months is displayed, and these total amounts can be stored in the memory. Note that the same operation can be performed for the charge display for each day and hour.

Next, the mode switching button 17 is pressed to set the saving target amount mode, and the numerical value switching buttons 18a and 18b are set.
When, for example, a monthly target amount is input, the monthly target amount is displayed in the upper part of the charge display unit 13, and if the saving is less than the target amount, the + amount is displayed in the lower part and the saving indicator 14 is turned on. Light. When the consumption amount is over the target amount, the minus amount is displayed at the bottom and the over-indicator lamp 15 is turned on. In addition to the operations described above, the monthly estimated amount can be changed by the numerical value switching buttons 18a, 18
It is possible to set a mode for inputting from b and displaying it in the upper part of the fee display unit 13 and displaying the savings amount in the lower part, and various modes. The operation procedure can be arbitrarily performed.

As described above, in the electricity saving rate display device according to the present embodiment, by operating the display unit 1 with a simple button, the electricity usage fee for each year, month, day, and hour used in the past can be displayed. It is possible to instantly and directly display the difference between the actual usage amount and the saving target amount, so that housewives, factory workers, company employees, etc. can easily know the electricity usage fee. It is possible to easily manage electricity rates in homes, factories, companies and the like. As a result, awareness of energy saving at the individual level can be improved, and as a result, not only energy saving can be achieved, but also profit can be obtained by actively setting a target amount.

In the above embodiment, the microcomputer 52 of the display unit 1 is provided with various arithmetic processing functions such as money amount data conversion processing, savings amount calculation processing, data display conversion processing, and data storage processing. By providing the function to the microcomputer 25 of the measuring unit 2 and providing the display unit 1 with only the data input unit composed of various buttons and the charge display unit 13, the display unit can be downsized and put in, for example, a shirt pocket or the like. A portable type that can be carried around may be configured to be operable from any place.

The mounting position of the detecting unit 3 is arbitrary.
By attaching it to the power supply line of various electric products, it is possible to know the amount of money saved for each electric product and to manage the energy-saving effect of the electric products on an individual level. Moreover, you may make it attach directly to a switchboard.

Further, the data of each measuring unit 2 may be managed by one display unit 1, for example, when the detecting unit 3 and the measuring unit 2 are installed at a plurality of places for each electric appliance.

Further, it is a matter of course that the arrangement of the charge display section and the switches of the operation panel 12 of the display unit 1 can be appropriately changed, and the detection section 3 can be formed in another form.

Further, as another embodiment of the savings charge display device of the present invention, the savings charge display device is connected to a flow meter or the like provided in a pipe for gas, water, oil, etc., and an electric signal is output from the flow meter. By taking out the above, it may be used as a savings charge display device for gas, water, oil, etc. in the same manner as the above-mentioned electricity savings charge display device.

[0034]

An embodiment of the product specification of the present invention will be described. A. Product specifications of equipment Display unit rating: Wired type = DC12V (supplied from the measurement unit): Wireless type = AC100V, 50 / 60Hz Working voltage: Wired type = DC9.5V to 14V: Wireless type = AC85V to 110V Operating temperature: -20C to 60 Communication system: Wired type = 2-wire bidirectional digital (with power supply function): Wireless type = I-channel bidirectional digital CPU: 1 chip 8 bits Key input: 16 key matrix input Display: 16 x 2 character type liquid crystal Display Parameter storage: EEPROM Calendar function: Backup by dedicated calender clock IC super capacitor

2. Measuring unit Rating: AC100V, 50 / 60Hz Operating voltage: AC85V ~ 110V Operating temperature: -20 ℃ ~ 60 ℃ Communication system: Wired type = 2-wire bidirectional digital (with power supply function): Wireless type = Both I channel 2. Digital CPU for: 1 chip 4 bits, A / D built-in type Current sensor Clamp type AC sensor 100A (50 / 60Hz)

B. Specification of software incorporated in microcomputer Display unit Acceptance of input of basic electricity charge data Acceptance of input of electricity rate unit price data Acceptance of input of late-night electricity basic rate data Acceptance of input of late-night electricity rate unit price data Acceptance of input of monthly target amount data Key input help message display Key input data Echo back display 1 kwh amount data conversion from A / D data every minute Monthly amount data is converted to EEPRO as necessary
Stored in M デ ー タ Data display of savings amount every hour

2. Measurement unit Loads current data into A / D every second, averages A / D data every minute Transmits A / D data every minute

[0038]

As described above, the savings charge display device of the present invention comprises an A / D converter for converting the current signal detected by the detector, and a money data conversion processor for converting the digital signal into money data. A data storage processing unit for storing amount data, a data input unit for inputting a numerical value such as a preset saving target amount, a saving amount calculating unit for comparing the saving target amount and the stored amount data, A data display processing unit for performing data processing for displaying the amount data,
It is equipped with a charge display section that displays the amount data on a liquid crystal or the like, so it is possible to directly read the usage fee and easily check the difference between the saving target price and the stored usage fee. It is possible to easily check and manage the amount of savings at the individual level in factories, companies, etc., thereby improving individual awareness of energy savings, making a significant contribution to energy savings, and obtaining profits from energy savings. You can also.

According to claim 2, it is possible to check at a glance whether the set saving target amount has been actually saved or overused.

According to the fifth aspect, it is possible for an energy saving manager such as a housewife, a worker, a maintenance person, etc. to easily confirm a saving rate at a place where a normal operation is performed, thereby improving energy saving awareness.

According to the sixth aspect, since the display unit can be carried, the manager can manage the saving fee from an arbitrary place.

According to the seventh aspect, it is possible to realize a gas fee saving effect.

According to the eighth aspect, the effect of saving the water charge can be realized.

According to the ninth aspect, it is possible to realize the effect of saving the oil fee.

According to the tenth aspect, the energy saving effect of each electric product can be confirmed.

[Brief description of drawings]

FIG. 1 is a perspective view illustrating the overall appearance of a savings charge display device according to the present invention.

FIG. 2 is a block diagram showing a state where the savings charge display device of FIG. 1 is attached to an electric wire.

FIG. 3 is a block diagram showing a circuit configuration of the saving fee display device of FIG.

FIG. 4 is a flowchart illustrating functions of the savings fee display device of FIG. 1;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Display unit 2 Measuring unit 3 Detector 4 Electric wire 5 Integrated power meter 13 Electricity charge display (Charge display) 17 Mode switch button (Data input) 18a Numeric switch (Data input) 18b Numeric switch (Data input) 19) Confirmation button (data input unit) 25 Microprocessor (sensor signal A / D converter) 27 Wireless transceiver 28 Cable 52 Microprocessor (money data conversion processor, data storage processor, savings amount calculator, data Display processing unit) 55 wireless transceiver

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Toshihiro Masuda 584 Shirahane-cho, Hamamatsu-shi, Shizuoka Prefecture, Denkosha Shiroha Plant (72) Inventor Hiroshi Harada 584 Shiroha-cho, Hamamatsu-shi, Shizuoka Prefecture Denkosha Shiraha Plant, Ltd. Within

Claims (10)

[Claims] 1. A detector for detecting a current, an A / D converter for converting a current signal detected by the detector into a digital signal, and converting the digital signal converted by the A / D converter into money data. An amount data conversion processing unit for conversion processing, a data storage processing unit for storing the amount data converted by the amount data conversion processing unit, a data input unit for inputting a numerical value such as a preset saving target amount, A savings amount calculation processing unit for comparing and calculating the savings target amount input from the input unit and the amount data stored in the data storage processing unit; and a savings amount calculated by comparison and stored in the data storage processing unit. A data display processing unit that performs data processing for displaying the amount data, and a charge display unit that displays the amount data processed by the data display processing unit on a liquid crystal display or the like. To save money display. 2. The charge display unit can simultaneously display a preset saving target amount and a saving amount compared and calculated by the saving amount calculation processing unit, and the saving target amount is based on actual amount data. 2. The savings charge display device according to claim 1, wherein a plus amount is displayed when the amount is small, and a minus amount is displayed when the saving target amount is larger than the actual amount data. 3. The A / D converter is provided in a measuring unit, and the amount data conversion processor, data storage processor,
3. The savings charge display device according to claim 1, wherein a data input unit, a savings amount calculation processing unit, a data display processing unit, and a charge display unit are provided in the display unit. 4. An A / D converter, an amount data conversion processor, a data storage processor, a savings amount calculator, and a data display processor are provided in a measuring unit, wherein the data input unit and the fee display unit are provided. The savings charge display device according to claim 1 or 2, wherein is provided in the display unit. 5. The detection unit is detachably attached to an electric wire after an integrating wattmeter arranged in a home, a factory, a company, or the like, and the measurement unit is arranged near the detection unit, The display unit is a home entrance or kitchen,
A work site or office of a factory, a facility room of a company, or the like, is arranged at a place where a manager such as a housewife, a worker, or a maintenance clerk normally performs a work, and the measurement unit and the display unit transmit and receive signals. 5. The savings charge display device according to claim 1, wherein the cable fork is connected by a wireless transceiver. 6. The savings charge display device according to claim 4, wherein the display unit is formed to be portable. 7. The savings charge display device according to claim 1, wherein the detection unit is attached to a flow meter provided in a gas pipe for supplying gas. 8. The savings charge display device according to claim 1, wherein the detection unit is attached to a flow meter provided in a water pipe for supplying water. 9. The savings charge display device according to claim 1, wherein the detection unit is attached to a flow meter provided in an oil pipe for supplying oil. 10. The savings charge display device according to claim 1, wherein the detection unit is attached to a power line of an electric product.