Electronic whiteboard with emissions trading system

Abstract

This electronic whiteboard system incorporates an automatic air conditioning control system that remotely controls a demand control board and can reduce the total power consumption and CO2 emissions of the entire facility by more than 30% compared to pre-registered actual water, energy, and heat usage values. [Solution] In an electronic whiteboard system, a demand control board, which is retrofitted to the indoor and outdoor units of an air conditioner and equipped with a CO2 sensor and a schedule timer, has a schedule timer that can change the control rate between peak time and other times, a CO2 sensor that controls up to 80% according to the indoor CO2 concentration, a demand control and linkage function that works in conjunction with existing demand control to achieve up to 80% reduction in air conditioning power consumption, and a smartphone app linkage function that allows facility managers to check the CO2 concentration, temperature, and humidity for each area on their smartphones. By installing this board, power consumption will be reduced by 50%, exceeding the government's CO2 reduction target, and the reduction results will be published in real time using an electronic whiteboard.

Description

Technical Field

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[0001] The present invention relates to energy reduction technology in facilities, and aims to standardize CO2 management by aggregating display methods such as the usage amounts of water, light, and heat on an electronic blackboard comprehensively.

Background Art

[0002] The energy-saving and reduction guarantee business model called the ESCO business that started in the 1990s has built a system that benefits leasing companies because significant energy cost reduction can be achieved through the renewal of lighting and air conditioners and automatic control such as inverters (speed control devices), and has developed rapidly.

[0003] Many facilities built during the bubble period flocked to the ESCO business with the collapse of the bubble. However, most of the ESCO businesses at that time were mainly for low-heat type lighting replacement and air conditioner renewal. As a result, few people at the ordering parties knew the reasons and how the cost reduction was achieved, and the facility managers only carried out management in documents without having reduction targets, and made the local governments such as the country and prefectures, or the head office, factory managers, etc. implement it based on the revised energy conservation law.

[0004] However, since the Electricity Business Act has changed so that the basic electricity charge is determined in the month that records the maximum demand electricity (demand) for a year, air conditioner manufacturers have split the power motors into multiple units to miniaturize them, and have achieved energy conservation through unit control and inverter (reducing the speed) control to respond.

[0005] In addition, since the power supply records peak power in 30-minute units, devices (demand controllers) that predict how to perform control within the 30-minute time limit have also been sold by each electrical equipment manufacturer. However, in many cases, the environment deteriorates when the air conditioner is controlled at the power peak, and in reality, the demand controller is often used only for power monitoring rather than as a control device.

[0006] However, in Japan, which is in the midst of a low-carbon era, there is a high target of reducing CO2 emissions by 46% by 2030, and this requires a joint effort between the public and private sectors. Therefore, for air conditioning equipment, which is essential for building facilities, it is judged that the quickest way to achieve energy savings of more than 50% is through comprehensive energy-saving measures that extend beyond electricity to gas, water, and fuel. [Disclosure of the Invention] [Problems that the invention aims to solve]

[0007] Electricity, gas, fuel, and tap water, which are variable elements in lighting and air conditioning systems, are also sources of CO2 emissions. While it is possible to individually measure these and graph them using conversion factors, even when building energy management systems (BEMS) are implemented at high cost, control over water, fuel, gas, etc., is rarely performed. Furthermore, while attempts were made in the past by the Energy Conservation Navigator to convert not only CO2 emissions but also electricity consumption and usage into monetary terms to be used for preventing global warming and for environmental education, a shortage of diagnosticians dispatched by the Energy Conservation Center prevented it from becoming a national movement. [Means for solving the problem]

[0008] By directly connecting the electricity, gas, water, and fuel consumption of the entire building to transaction meters and displaying the data on an electronic whiteboard, everyone can see how much energy each energy source is using, not only in terms of consumption but also in terms of cost and CO2 emissions in kilograms.

[0009] Simply placing electronic whiteboards in building entrances, workplaces, classrooms, etc., will allow many people to see them, raising awareness of environmental issues and promoting emissions management and energy conservation. [Effects of the Invention]

[0010] This invention makes it possible to achieve a reduction of over 40% in energy consumption, whereas most facilities, even with energy-saving measures implemented by air conditioner manufacturers to avoid disrupting the indoor environment, could only guarantee a reduction of 10% to 15% from the current level. While conventional retrofit demand control boards aimed to reduce contracted power, this invention detects the number of occupants based on CO2 concentration, which is fundamental to air conditioning design, and applies control to areas with low numbers, thus achieving a reduction of over 40%. To further enhance energy efficiency in air conditioning equipment, it is currently believed that replacing existing equipment with non-CFC systems is the best option, and it is desirable to implement this simultaneously as part of an ESCO project (an energy-saving equipment introduction model with no initial investment) when introducing retrofit demand control boards. Furthermore, displaying the effectiveness verification in the ESCO project on an electronic whiteboard will further enhance energy efficiency, enabling a reduction of over 40%. Best mode for carrying out the invention

[0011] The present invention will be briefly explained below with the help of drawings. Drawing 1 is an image diagram of the demand control of an air conditioner control panel. By installing a "CO2 sensor-linked retrofit demand control board" to limit the capacity of the outdoor unit during a 30-minute period, the compressor output can be reduced to less than half in areas where there are no people, making it possible to reduce the unit capacity limit by up to 20%. By controlling based on the CO2 concentration from the indoor unit, power consumption can be reduced by more than 40% in areas with fewer people than in areas with more people. By displaying the above energy usage status on an electronic whiteboard, it becomes possible to promote an energy-saving project in which everyone participates.

[0012] Figures 1 and 2 show an outline example of the implementation of the present invention in a commercial facility. Figure 1 is a demand control image diagram. The add-on demand control board sends control signals to the "outdoor unit capacity limiting board," and Figure 2 is the screen displayed on the electronic whiteboard. The electronic whiteboard CO2 reduction system allows for the determination of the number of people in a room based on CO2 concentration information from CO2 sensors and temperature / humidity sensors installed in the building or classroom. If the CO2 concentration is 800 ppm or less, it can be controlled remotely, further saving energy. [Brief explanation of the drawing]

[0013] [Figure 1] Figure 1 is an image diagram of demand control for an air conditioner control panel. By installing a CO2 sensor-linked retrofit demand control board to limit the capacity of the outdoor unit for a 30-minute period, the compressor output can be reduced to less than half in areas where there are no people, making it possible to reduce the unit capacity limit by up to 20%. By controlling based on the CO2 concentration from the indoor unit, power consumption can be reduced by more than 40% in areas with fewer people than in areas with more people. [Figure 2] Figure 2 shows an image of the data displayed on the electronic whiteboard. It displays not only the emissions of electricity, gas, oil, tap water, etc., but also the cost, unit cost, and even maintenance management such as electrical leakage in real time. This is expected to have a significant energy-saving effect because it will help raise energy-saving awareness among many people.

Claims

1. An electronic whiteboard system installed in a facility that can display in real time the facility's CO2 emissions, maintenance costs including utilities, and energy intensity.

2. An electronic whiteboard system installed in a facility that can display predictions of increases and decreases in CO2 emissions and utility costs for that facility on a daily, weekly, monthly, and yearly basis, based on pre-registered actual values.

3. An electronic whiteboard system pre-programmed to display CO2 emissions, water and energy usage, etc., across multiple facilities using a unified emission standard.

4. An electronic whiteboard system incorporating a remote control system and a control board that can be retrofitted to an air conditioner's outdoor unit. This system is programmed to allow setting a trial run mode via external input, so as not to record the facility's maximum demand value even during trial operation.

5. An electronic whiteboard system incorporating an automatic air conditioning control system that remotely controls the above-mentioned demand control board and can reduce the total power consumption and CO2 emissions of the entire facility by more than 30% compared to the actual water, energy, and heat usage values ​​that have been registered in advance.

6. This remote control system, installed in a facility with the above-mentioned demand control board, displays in real time on a PC or smartphone how much energy, gas, water, and fuel costs have been saved based on prepaid data, and can issue an alert if an abnormal value is detected. It also features an electronic whiteboard system with a built-in program that allows for the employment of people with disabilities by displaying energy, gas, water, and fuel reduction predictions using traffic light identification.

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