WO2023234635A1 - Energy management system and method for managing costs saved through energy recovery - Google Patents

Abstract

Disclosed are an energy management system and method for managing costs saved through energy recovery. The energy management system comprises: an energy recovery apparatus that is installed in a construction machinery, recovers some of energy driving the construction machinery, and calculates the amount of recovered energy; a cloud server that calculates a monthly subscription fee related to the recovered energy on the basis of the calculated amount of energy; a user terminal that receives an input of a user input related to payment of the calculated monthly subscription fee; and an electronic payment apparatus that, if a user input is an input requesting payment of the monthly subscription fee, pays the monthly subscription fee and transmits payment completion-related information to the cloud server and the user terminal.

Description

Energy management system and method for managing costs saved through energy recovery

The present invention relates to an energy management system, and more specifically, an energy management system and method for managing the costs saved through energy recovery by calculating the cost of energy recovered through an energy recovery device and redistributing the calculated cost. It's about.

Recently, much research has been conducted on systems to reduce costs and prevent environmental pollution due to the operation of construction machinery. In particular, research related to energy storage and regeneration technology of hydraulic systems is continuously conducted in heavy industry that deals with heavy equipment.

However, in the conventional system, the process of accurately calculating the cost of recovered energy and redistributing the calculated cost is not clear, resulting in the problem that the cost is not actually settled to those who should be compensated.

Therefore, there is a need for a system in which the cost settlement process for recovered energy can be more transparent and objective.

The problem that the present invention aims to solve is to calculate the cost of energy recovered through an energy recovery device installed on construction machinery and distribute the calculated cost to the recipient of the settlement, thereby supporting systematic energy management. To provide an energy management system and method for managing.

In order to solve the above problem, an energy management system according to the present invention is installed on construction machinery, an energy recovery device for recovering some of the energy that drives the construction machinery, and calculating the amount of recovered energy, and the calculated amount of energy. A cloud server that calculates a monthly subscription fee related to recovered energy based on a user terminal that receives a user input related to payment of the calculated monthly subscription fee, and when the user input is an input requesting payment of the monthly subscription fee, the monthly subscription fee It includes an electronic payment device that makes a payment and transmits information related to payment completion to the cloud server and the user terminal.

In addition, the energy recovery device includes an accumulator that recovers energy by accumulating oil for driving the construction machine, a pressure sensor provided at the input end of the accumulator and measuring the pressure of the accumulator, and Calculate the amount of recovered energy using a flow sensor that measures discharge-related flow rate and the measured flow-related information, transmit the calculated energy amount and the measured pressure and flow-related information to the user terminal, and When a user input related to driving control is received from a user terminal, it is characterized by including a control unit that performs driving control according to the user input.

In addition, the energy recovery device includes an accumulator for recovering energy by accumulating oil for driving the construction machine, a valve for controlling a flow for the oil to accumulate in the accumulator, and provided at both ends of the valve, the valve The amount of recovered energy is calculated by applying the two pressure sensors that measure the pressure at both ends of the valve and the two measured pressures and the opening degree of the valve to the orifice equation, and the calculated amount of energy and the It is characterized in that it includes a control unit that transmits the measured pressure-related information to the user terminal, and when a user input related to drive control is received from the user terminal, performs drive control according to the user input.

In addition, when a user input for controlling the machine to be driven in an eco mode is received, the control unit provides control to improve fuel efficiency by providing the recovered energy to the cylinder of the construction machine.

In addition, the control unit is characterized in that when a user input for controlling the machine to be driven in a power mode is received, the recovered energy is provided to the motor or engine of the construction machine to improve the force and speed required for the next operation.

Additionally, the user terminal generates monitoring information about the status of the energy recovery device using the received information, and outputs the generated monitoring information in real time.

In addition, the cloud server converts the amount of recovered energy into calorie units, calculates the amount of diesel for the amount of energy by applying tons of oil equivalent related to the total calorific value of diesel to the converted energy amount, and calculates the amount of diesel for the amount of energy. It is characterized by calculating the savings cost by applying the standard diesel price to the flow rate.

In addition, the cloud server is characterized in that the monthly subscription fee is calculated in proportion to the savings cost, or by adding an incentive according to the savings cost to a preset amount.

In addition, the cloud server is characterized in that it further calculates the amount of carbon emission reduction using the amount of recovered energy.

In addition, if the user terminal does not request the payment even after a preset time has elapsed, the electronic payment device transmits information related to incomplete payment to the cloud server and the user terminal so that the energy recovery device stops recovering energy. It is characterized by control.

The energy management system according to the present invention is installed on construction machinery, an energy recovery device that recovers some of the energy that drives the construction machinery and calculates the amount of recovered energy, and energy recovered based on the calculated amount of energy. A user terminal that calculates the relevant monthly subscription fee and receives a user input related to payment of the calculated monthly subscription fee, and when the user input is an input requesting payment of the monthly subscription fee, pays the monthly subscription fee, and information related to payment completion It includes an electronic payment device that transmits to the user terminal.

The energy management method according to the present invention includes the steps of an energy recovery device recovering a portion of the energy that drives construction machinery, the energy recovery device calculating the amount of recovered energy, and transmitting the calculated amount of energy to a cloud server. Step, the cloud server calculates a monthly subscription fee related to recovered energy based on the amount of energy, and transmitting the calculated monthly subscription fee to a user terminal and an electronic payment device, the user terminal makes payment of the calculated monthly subscription fee receiving a relevant user input, transmitting the inputted user input to the electronic payment device, and paying the monthly subscription fee when the electronic payment device receives a user input requesting payment of the monthly subscription fee from the user terminal. , including transmitting payment completion-related information to the cloud server and the user terminal.

According to an embodiment of the present invention, it is possible to recover some of the energy that drives construction machinery, calculate the cost of the recovered energy, and systematically redistribute the saved costs.

In addition, by reducing carbon emissions generated from the operation of construction machinery, it is possible to prevent the imposition of carbon taxes that may occur in the future.

1 is a block diagram for explaining an energy management system according to an embodiment of the present invention.

Figure 2 is a schematic diagram illustrating an energy recovery device according to an embodiment of the present invention.

Figure 3 is a schematic diagram illustrating an energy recovery device according to another embodiment of the present invention.

Figure 4 is a diagram for explaining a user interface provided by a user terminal according to an embodiment of the present invention.

Figure 5 is a diagram for explaining a user interface provided by a user terminal according to another embodiment of the present invention.

Figure 6 is a flowchart for explaining an energy recovery method according to an embodiment of the present invention.

Figure 7 is a flowchart for explaining an energy recovery method according to another embodiment of the present invention.

Figure 8 is a flowchart for explaining an energy recovery method according to another embodiment of the present invention.

Figure 9 is a block diagram for explaining a computing device according to an embodiment of the present invention.

Below, with reference to the attached drawings, embodiments of the present invention will be described in detail so that those skilled in the art can easily implement the present invention. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein. In order to clearly explain the present invention in the drawings, parts that are not related to the description are omitted, and similar parts are given similar reference numerals throughout the specification.

In this specification and drawings (hereinafter referred to as “this specification”), duplicate descriptions of the same components are omitted.

Also, in this specification, when a component is mentioned as being 'connected' or 'connected' to another component, it may be directly connected or connected to the other component, but may be connected to the other component in the middle. It should be understood that may exist. On the other hand, in this specification, when it is mentioned that a component is 'directly connected' or 'directly connected' to another component, it should be understood that there are no other components in between.

Additionally, the terms used in this specification are merely used to describe specific embodiments and are not intended to limit the present invention.

Also, in this specification, singular expressions may include plural expressions, unless the context clearly dictates otherwise.

In addition, in this specification, terms such as 'include' or 'have' are only intended to designate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, and one or more It should be understood that this does not exclude in advance the presence or addition of other features, numbers, steps, operations, components, parts, or combinations thereof.

Also, in this specification, the term 'and/or' includes a combination of a plurality of listed items or any of the plurality of listed items. In this specification, 'A or B' may include 'A', 'B', or 'both A and B'.

Additionally, in this specification, detailed descriptions of well-known functions and configurations that may obscure the gist of the present invention will be omitted.

1 is a block diagram for explaining an energy management system according to an embodiment of the present invention.

Referring to FIG. 1, the energy management system 600 calculates the cost of energy recovered through the energy recovery device 100 of the construction machinery 200 and distributes the calculated cost to the settlement recipient to ensure systematic energy management. Support. The energy management system 600 includes an energy recovery device 100, a cloud server 300, a user terminal 400, and an electronic payment device 500.

The energy recovery device 100 is installed in each construction machine 200 and recovers some of the energy that drives the construction machine 200. That is, the energy recovery device 100 can accumulate oil for driving the construction machine 200 and then recover the energy stored by the accumulated oil. The energy recovery device 100 calculates the amount of recovered energy. The energy recovery device 100 transmits the calculated amount of energy to the cloud server 300. Additionally, when the energy recovery device 100 receives energy recovery-related information from the cloud server 300, the energy recovery device 100 may continue or stop energy recovery based on the received information. Here, the construction machine 200 is a mechanical device used at a construction site including civil engineering work, building construction, etc., and may include an excavator, loader, forklift, etc.

The cloud server 300 is a server where a plurality of terminals are gathered and communicates with the energy recovery device 100, the user terminal 400, and the electronic payment device 500. The cloud server 300 calculates a savings cost for the recovered energy based on the amount of energy calculated by the energy recovery device 100.

division	energy source	unit	Total calorific value			Net calorific value
			M.J.	kcal	Tons of oil equivalent (10 -3 toe)	M.J.	kcal	Tons of oil equivalent (10 -3 toe)
oil	crude oil	kg	44.9	10,730	1.073	42.2	10,080	1.008
	gasoline	ℓ	32.6	7,780	0.778	30.3	7,230	0.723
	kerosene	ℓ	36.8	8,790	0.879	34.3	8,200	0.820
	via	ℓ	37.7	9,010	0.901	35.3	8,420	0.842
	…	…	…	…	…	…	…	…

In detail, the cloud server 300 converts the amount of recovered energy into calorie units based on the energy calorie conversion standard in [Table 1], and applies the ton of oil equivalent related to the total calorific value of diesel to the converted energy amount to convert the energy to the corresponding energy. Calculate the amount of diesel fuel per volume. The cloud server 300 can calculate the saving cost by applying the standard diesel price (current price) to the calculated diesel amount. The cloud server 300 calculates a monthly subscription fee related to recovered energy based on the calculated savings cost. The monthly subscription fee is a fee charged to users such as drivers or company managers (e.g., individual business owners, construction company managers, etc.) who use the construction machinery 200 every month, and the cost is calculated based on the amount of energy recovered. For example, the monthly subscription fee can be calculated in proportion to the savings achieved through energy recovery, or by adding an incentive based on the savings cost to a preset amount (e.g., fixed amount, fixed amount, etc.). Here, the cloud server 300 can further calculate the amount of carbon emission reduction using the amount of recovered energy. Carbon emission reduction refers to the amount of carbon emissions reduced when comparing the case where energy is recovered and the case where energy is not recovered. The cloud server 300 transmits the calculated monthly subscription fee payment-related information to the user terminal 400 and the electronic payment device 500, respectively. Information related to monthly subscription fee payment may include monthly subscription fee information, payment deadline information, payment method information, etc. Here, the cloud server 300 instructs the energy recovery device 100 to recover energy when the monthly subscription fee is paid, and instructs the energy recovery device 100 not to recover energy when the monthly subscription fee is not paid. You can do this.

The user terminal 400 is a terminal used by a user such as a driver or company manager, and communicates with the energy recovery device 100, the cloud server 300, and the electronic payment device 500. When the user terminal 400 receives information related to payment of the calculated monthly subscription fee, it receives user input related to payment of the monthly subscription fee. At this time, the user input may be an input for payment of the monthly subscription fee. When the user input to pay the monthly subscription fee is input, the user terminal 400 requests payment to the electronic payment device 500, and when the payment is completed, the user terminal 400 receives information related to the completion of the monthly subscription fee payment. , outputs the relevant information.

The electronic payment device 500 is a device that supports electronic commerce and pays monthly subscription fees online. Preferably, the electronic payment device 500 may be linked with a financial institution server to pay the monthly subscription fee. The electronic payment device 500 pays the monthly subscription fee based on the monthly subscription fee payment-related information received from the cloud server 300 and the monthly subscription fee payment request received from the user terminal 400. At this time, the electronic payment device 500 compares the information received from the cloud server 300 and the user terminal 400 to check whether the monthly subscription fee is the same, and if so, performs payment. When the monthly subscription fee payment is completed, the electronic payment device 500 transmits information related to the monthly subscription fee payment to the cloud server 300 and the user terminal 400. Here, if the electronic payment device 500 receives information related to the monthly subscription payment from the cloud server 300, but does not receive a monthly subscription payment request from the user terminal 400 within a preset time, the electronic payment device 500 does not pay the monthly subscription fee. The energy recovery device 100 can be controlled to stop recovering energy by transmitting information related to non-payment of subscription fees to the cloud server 300 and the user terminal 400, respectively.

Meanwhile, the energy management system 600 may establish a communication network 650 between the energy recovery device 100, the cloud server 300, the user terminal 400, and the electronic payment device 500. The communication network 650 may be composed of a backbone network and a subscriber network. The backbone network may be composed of one or more integrated networks among the X.25 network, Frame Relay network, ATM network, MPLS (Multi-Protocol Label Switching) network, and GMPLS (Generalized Multi-Protocol Label Switching) network. Subscriber networks include FTTH (Fiber To The Home), ADSL (Asymmetric Digital Subscriber Line), cable network, zigbee, Bluetooth, and Wireless LAN (IEEE 802.11b, IEEE 802.11a, IEEE 802.11g, IEEE 802.11n). ), Wireless Hart (ISO/IEC62591-1), ISA100.11a (ISO/IEC 62734), CoAP (Constrained Application Protocol), MQTT (Message Queuing Telemetry Transport), WIBro (Wireless Broadband), Wimax, 3G, HSDPA (High Speed Downlink Packet Access), 4G, 5G and 6G, etc. In some embodiments, the communication network 650 may be an Internet network or a mobile communication network. Additionally, the communication network 650 may include any wireless or wired communication method that is widely known or will be developed in the future.

In addition, the energy management system 600 is shown and described in the drawing as having a separate configuration for the cloud server 300 and the user terminal 400, but is not limited to this and can be implemented as a single configuration depending on the situation in which the system is installed. there is.

FIG. 2 is a schematic diagram illustrating an energy recovery device according to an embodiment of the present invention, and FIG. 3 is a schematic diagram illustrating an energy recovery device according to another embodiment of the present invention.

1 to 3, the energy recovery device 100 recovers energy through an accumulator 10 and calculates the amount of recovered energy. The energy recovery device 100 transmits the calculated amount of energy to the cloud server 300 and the user terminal 400, thereby supporting redistribution of costs for the amount of recovered energy. Here, the energy recovery device 100 can be divided into two embodiments, a first energy recovery device 100a and a second energy recovery device 100b, depending on the method of calculating the amount of recovered energy.

The first energy recovery device 100a, which is the first embodiment, includes a pressure accumulator 10, a first pressure sensor 20, a flow sensor 30, and a control unit 40. The accumulator 10 recovers energy by accumulating oil for driving the construction machine 200. The accumulator 10 can discharge the accumulated oil when necessary and provide the recovered energy to the parts that need it. The first pressure sensor 20 is provided at the input end of the accumulator 10 and measures the pressure of the accumulator 10 in real time. The flow sensor 30 is provided in the section where oil is discharged from the accumulator 10 and measures the flow rate of the oil being discharged. The control unit 40 calculates the amount of recovered energy using information related to the measured flow rate. The control unit 40 transmits the calculated amount of energy and the information related to the measured pressure and flow rate to the user terminal 400, and when a user input related to drive control is received from the user terminal 400, it performs drive control according to the user input. .

The second energy recovery device 100b, which is a second embodiment, includes an accumulator 10, a control unit 40, a valve 50, a second pressure sensor 60, and a third pressure sensor 70. The accumulator 10 recovers energy by accumulating oil for driving the construction machine 200. The accumulator 10 can discharge the accumulated oil when necessary and provide the recovered energy to the parts that need it. The valve 50 is provided in a section where oil flows from the cylinder S to the accumulator 10, and controls the flow of oil to accumulate pressure in the accumulator 10. The second pressure sensor 60 and the third pressure sensor 70 are provided between the valves 50 and measure pressure at both ends of the valve 50, respectively. Preferably, one end of the second pressure sensor 60 is connected to the cylinder (S), the other end is connected to one end of the valve 50, and the third pressure sensor 70 has one end connected to the other end of the valve 50. It is connected, and the other end may be connected to the accumulator 10. Here, the third pressure sensor 70 is provided at the input end of the accumulator 10 and can measure the pressure inside the accumulator 10.

The control unit 40 calculates the amount of recovered energy by applying the two measured pressures and the opening degree of the valve 50 to the orifice equation. In detail, the control unit 40 calculates the flow rate of the charged oil using [Equation 1], calculates the power value by multiplying the calculated flow rate by the pressure inside the accumulator 10, and calculates the calculated The amount of recovered energy can be calculated by integrating the power value over time.

Here, Q means the oil flow rate, A means the opening area of the valve, c means the valve constant of the orifice equation, and △P means the pressure difference between both ends of the valve.

Additionally, the control unit 40 can calculate the oil flow rate using the discharge amount (cc/rev) of the motor (M) of the construction machine 200 as shown in [Equation 2], without using the orifice equation.

Here, cc/rev means the discharge amount of the motor (M), and engine RPM means the number of revolutions of the engine (E) per minute.

The control unit 40 transmits the calculated amount of energy and the information related to the measured pressure and flow rate to the user terminal 400, and when a user input related to drive control is received from the user terminal 400, it performs drive control according to the user input. .

Meanwhile, the control unit 40 can drive the energy recovery device 100 in one of eco mode, power mode, and normal mode according to user input. When the control unit 40 receives a user input controlling the machine to drive in an eco mode, it provides the recovered energy to the cylinder S of the construction machine 200 to improve fuel efficiency. When a user input for controlling operation in power mode is received, the control unit 40 provides the recovered energy to the motor (M) or engine (E) of the construction machine 200 to improve the force and speed required for the next operation. do. When the control unit 40 receives a user input (or information related to non-completion of payment) controlling the machine to be driven in a normal mode, the control unit 40 controls the construction machine 200 so that only the normal operation is performed without performing an energy recovery process. That is, the control unit 40 controls the oil to be stored in the oil tank (T) without accumulating pressure.

FIG. 4 is a diagram illustrating a user interface provided by a user terminal according to an embodiment of the present invention, and FIG. 5 is a diagram illustrating a user interface provided by a user terminal according to another embodiment of the present invention.

2 to 5, the user terminal 400 generates monitoring information based on at least one of the amount of energy, pressure-related information, and flow rate-related information received from the energy recovery device 100, and the generated monitoring information is output in real time. To this end, the user terminal 400 may have an application installed that is linked to the energy recovery device 100. The application supports a user interface that outputs monitoring information including communication status, driving status, energy amount status, pressure status, etc. of the energy recovery device 100.

In detail, the user interface provides a communication menu 410, which is a toggle button that can control communication with the energy recovery device 100 on/off. The user interface selects eco mode (420a), power mode (420b), and normal mode (420c), which are the modes in which the energy recovery device 100 is driven, and provides a drive menu 420 that allows you to control operation in the selected mode. to provide. The user interface provides an energy amount menu 430 that displays the amount of recovered energy in real time. The user interface provides a pressure gauge 440 of the accumulator 10, a numerical value 450 for the pressure gauge, and a discharge menu 460 that forcibly controls the discharge of the accumulator 10. Additionally, the user interface provides a notification message 470 indicating whether there is an abnormality in the sensor or valve.

Figure 6 is a flowchart for explaining an energy recovery method according to an embodiment of the present invention.

Referring to FIGS. 1 and 6 , the energy recovery method can recover some of the energy that drives the construction machine 200, calculate the cost for the recovered energy, and systematically redistribute the reduced costs. In addition, the energy recovery method can reduce carbon emissions generated from the operation of the construction machine 200 and prevent the imposition of carbon taxes that may occur in the future.

In step S101, the energy recovery device 100 recovers some of the energy that drives the construction machine 200. At this time, the energy recovery device 100 can recover energy through an accumulator.

In step S103, the energy recovery device 100 calculates the amount of recovered energy. The energy recovery device 100 calculates the amount of recovered energy using at least one of flow rate, pressure, and valve opening degree.

In step S105, the energy recovery device 100 transmits the recovered energy-related information to the cloud server 300. Here, the recovered energy-related information may include the amount of energy recovered from the energy recovery device 100 and status information of the energy recovery device 100. The energy recovery device 100 may also transmit the recovered energy-related information to the user terminal 400 and support the user terminal 400 to generate and output monitoring information through the recovered energy-related information.

In step S107, the cloud server 300 calculates a monthly subscription fee related to recovered energy. The cloud server 300 converts the amount of recovered energy into calorie units and calculates the amount of diesel for the corresponding amount of energy by applying the ton of oil equivalent related to the total calorific value of diesel to the converted energy. The cloud server 300 calculates the savings cost by applying the standard diesel price to the calculated diesel amount. The cloud server 300 can calculate the monthly subscription fee in proportion to the savings cost, or by adding an incentive according to the savings cost to a preset amount.

In step S109, the cloud server 300 transmits monthly subscription fee payment-related information to the user terminal 400 and the electronic payment device 500, respectively. Information related to monthly subscription fee payment includes construction equipment 200 information, energy recovery device 100 information, and monthly subscription fee information.

In step S111, the user terminal 400 receives a user input from the user. When information related to payment of the monthly subscription fee is received, the user terminal 400 may output the information and then receive a user input related to the payment of the monthly subscription fee from the user. Here, the user input may be an input containing a command to pay the monthly subscription fee.

In step S113, the user terminal 400 requests the electronic payment device 500 to pay the monthly subscription fee. The user terminal 400 may request payment for the monthly subscription fee according to the user input. At this time, the user terminal 400 may further transmit information including the payment amount and payment method (e.g., bank transfer, card, mobile phone small payment, points, etc.) to the electronic payment device 500.

In step S115, the electronic payment device 500 pays the monthly subscription fee. The electronic payment device 500 completes the payment by paying the monthly subscription fee using the payment requested method.

In step S117, the electronic payment device 500 transmits information related to completion of payment of the monthly subscription fee to the cloud server 300 and the user terminal 400, respectively.

In step S119, the user terminal 400 outputs information related to the completion of payment of the received monthly subscription fee. Through this, the user can confirm that the monthly subscription fee payment has been completed.

In step S121, the cloud server 300 transmits a control signal for an energy recovery progress instruction to the energy recovery device 100. At this time, the user terminal 400 may also transmit a control signal for an energy recovery progress instruction to the energy recovery device 100.

In step S123, the energy recovery device 100 continuously recovers some of the energy that drives the construction machine 200. That is, the energy recovery device 100 branches to step S101.

Figure 7 is a flowchart for explaining an energy recovery method according to another embodiment of the present invention.

Referring to FIGS. 1 and 7 , the energy recovery method recovers some of the energy that drives the construction machine 200, and limits energy recovery if a monthly subscription fee is not paid for the recovered energy.

In step S201, the energy recovery device 100 recovers some of the energy that drives the construction machine 200. At this time, the energy recovery device 100 can recover energy through an accumulator.

In step S203, the energy recovery device 100 calculates the amount of recovered energy. The energy recovery device 100 calculates the amount of recovered energy using at least one of flow rate, pressure, and valve opening degree.

In step S205, the energy recovery device 100 transmits the recovered energy-related information to the cloud server 300. Here, the recovered energy-related information may include the amount of energy recovered from the energy recovery device 100 and status information of the energy recovery device 100. Additionally, the energy recovery device 100 may transmit the recovered energy-related information to the user terminal 400 and support the user terminal 400 to generate and output monitoring information through the recovered energy-related information.

In step S207, the cloud server 300 calculates a monthly subscription fee related to the recovered energy. The cloud server 300 converts the amount of recovered energy into calorie units and calculates the amount of diesel for the corresponding amount of energy by applying the ton of oil equivalent related to the total calorific value of diesel to the converted energy. The cloud server 300 calculates the savings cost by applying the standard diesel price to the calculated diesel amount. The cloud server 300 can calculate the monthly subscription fee in proportion to the savings cost, or by adding an incentive according to the savings cost to a preset amount.

In step S209, the cloud server 300 transmits monthly subscription fee payment-related information to the user terminal 400 and the electronic payment device 500, respectively. Information related to monthly subscription fee payment includes construction equipment 200 information, energy recovery device 100 information, and monthly subscription fee information.

In step S211, the user terminal 400 does not request payment of the monthly subscription fee to the electronic payment device 500. At this time, when the user terminal 400 receives information related to payment of the monthly subscription fee, it outputs the information and may not receive any user input related to the payment of the monthly subscription fee from the user.

In step S213, the electronic payment device 500 confirms the unpaid monthly subscription fee. The electronic payment device 500 receives information related to payment of the monthly subscription fee from the cloud server 300, and if it does not receive a request for payment of the monthly subscription fee from the user terminal 400 even after a preset time has elapsed, it is determined that the monthly subscription fee payment is not performed. do.

In step S215, the electronic payment device 500 transmits information related to non-payment of the monthly subscription fee to the cloud server 300 and the user terminal 400, respectively.

In step S217, the user terminal 400 outputs information related to non-payment of the received monthly subscription fee. This allows the user to confirm that the monthly subscription fee has not been paid.

In step S219, the cloud server 300 transmits a control signal for an energy recovery stop instruction to the energy recovery device 100. At this time, the user terminal 400 may also transmit a control signal for an energy recovery stop instruction to the energy recovery device 100.

In step S221, the energy recovery device 100 stops energy recovery. The energy recovery device 100 is controlled to operate in a normal mode so that the construction machine 200 can be operated in a manner other than energy recovery.

Figure 8 is a flowchart for explaining an energy recovery method according to another embodiment of the present invention.

Referring to FIG. 8, the energy recovery method can recover some of the energy that drives the construction machine 200, redistribute the costs saved through the recovered energy, and reduce carbon emissions.

In step S301, the energy recovery device 100 recovers some of the energy that drives the construction machine 200. At this time, the energy recovery device 100 can recover energy through an accumulator.

In step S303, the energy recovery device 100 calculates the amount of recovered energy. The energy recovery device 100 calculates the amount of recovered energy using at least one of flow rate, pressure, and valve opening degree.

In step S305, the energy recovery device 100 transmits information related to the recovered energy to the user terminal 400. Here, the recovered energy-related information may include the amount of energy recovered from the energy recovery device 100 and status information of the energy recovery device 100. In addition, the energy recovery device 100 can support the generation and output of monitoring information through the energy-related information recovered from the user terminal 400 by transmitting the recovered energy-related information to the user terminal 400.

In step S307, the user terminal 400 calculates a monthly subscription fee related to the recovered energy. The user terminal 400 converts the amount of recovered energy into calorie units and calculates the amount of diesel for the corresponding amount of energy by applying the ton of oil equivalent related to the total calorific value of diesel to the converted energy. The user terminal 400 calculates the reduced cost by applying the standard diesel price to the calculated diesel amount. The user terminal 400 can calculate the monthly subscription fee in proportion to the savings cost, or by adding an incentive according to the savings cost to a preset amount.

In step S309, the user terminal 400 transmits information related to payment of the monthly subscription fee to the electronic payment device 500. Information related to monthly subscription fee payment includes construction equipment 200 information, energy recovery device 100 information, and monthly subscription fee information.

In step S311, the user terminal 400 receives a user input from the user. The user terminal 400 may output the calculated monthly subscription fee-related information and then receive a user input related to the monthly subscription fee payment from the user. Here, the user input may be an input containing a command to pay the monthly subscription fee.

In step S313, the user terminal 400 requests the electronic payment device 500 to pay the monthly subscription fee. The user terminal 400 may request payment for the monthly subscription fee according to the user input. At this time, the user terminal 400 may further transmit information including the payment amount and payment method (e.g., bank transfer, card, mobile phone small payment, points, etc.) to the electronic payment device 500.

In step S315, the electronic payment device 500 pays the monthly subscription fee. The electronic payment device 500 completes the payment by paying the monthly subscription fee using the payment requested method.

In step S317, the electronic payment device 500 transmits information related to completion of payment of the monthly subscription fee to the user terminal 400.

In step S319, the user terminal 400 outputs information related to the completion of payment of the received monthly subscription fee. Through this, the user can confirm that the monthly subscription fee payment has been completed.

In step S321, the user terminal 400 transmits a control signal for an energy recovery progress instruction to the energy recovery device 100.

In step S323, the energy recovery device 100 continuously recovers some of the energy that drives the construction machine 200. That is, the energy recovery device 100 branches to step S301.

Figure 9 is a block diagram for explaining a computing device according to an embodiment of the present invention.

Referring to FIG. 9, the computing device TN100 may be a device described in this specification (eg, an energy recovery device, cloud server, user terminal, electronic payment device, etc.).

The computing device TN100 may include at least one processor TN110, a transceiver device TN120, and a memory TN130. Additionally, the computing device TN100 may further include a storage device TN140, an input interface device TN150, an output interface device TN160, etc. Components included in the computing device TN100 may be connected by a bus TN170 and communicate with each other.

The processor TN110 may execute a program command stored in at least one of the memory TN130 and the storage device TN140. The processor TN110 may refer to a central processing unit (CPU), a graphics processing unit (GPU), or a dedicated processor on which methods according to embodiments of the present invention are performed. Processor TN110 may be configured to implement procedures, functions, and methods described in connection with embodiments of the present invention. The processor TN110 may control each component of the computing device TN100.

Each of the memory TN130 and the storage device TN140 can store various information related to the operation of the processor TN110. Each of the memory TN130 and the storage device TN140 may be comprised of at least one of a volatile storage medium and a non-volatile storage medium. For example, the memory TN130 may be comprised of at least one of read only memory (ROM) and random access memory (RAM).

The transceiving device TN120 can transmit or receive wired signals or wireless signals. The transmitting and receiving device (TN120) can be connected to a network and perform communication.

Meanwhile, the embodiments of the present invention are not only implemented through the apparatus and/or method described so far, but may also be implemented through a program that realizes the function corresponding to the configuration of the embodiment of the present invention or a recording medium on which the program is recorded. This implementation can be easily implemented by anyone skilled in the art from the description of the above-described embodiments.

Although the embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements made by those skilled in the art using the basic concept of the present invention defined in the following claims are also possible. It falls within the scope of invention rights.

Claims (12)

1. An energy recovery device installed in a construction machine, recovering some of the energy that drives the construction machine, and calculating the amount of the recovered energy;

   a cloud server that calculates a monthly subscription fee related to recovered energy based on the calculated amount of energy;

   a user terminal that receives user input related to payment of the calculated monthly subscription fee; and

   When the user input is an input requesting payment of the monthly subscription fee, an electronic payment device that pays the monthly subscription fee and transmits payment completion related information to the cloud server and the user terminal;

   Energy management system including.
2. According to clause 1,

   The energy recovery device,

   An accumulator that recovers energy by accumulating oil for driving the construction machinery;

   A pressure sensor provided at the input end of the accumulator and measuring the pressure of the accumulator;

   A flow sensor that measures a discharge-related flow rate of the accumulated pressure oil; and

   The recovered energy amount is calculated using the measured flow rate information, the calculated energy amount and the measured pressure and flow rate related information are transmitted to the user terminal, and user input related to drive control is received from the user terminal. A control unit that controls operation according to the user input when received;

   An energy management system comprising:
3. According to clause 1,

   The energy recovery device,

   An accumulator that recovers energy by accumulating oil for driving the construction machinery;

   A valve that controls the flow of the oil to accumulate pressure in the accumulator;

   Two pressure sensors provided at both ends of the valve and measuring pressure at both ends of the valve, respectively; and

   Applying the two measured pressures and the opening degree of the valve to an orifice equation to calculate the amount of recovered energy, transmitting the calculated amount of energy and the measured pressure-related information to the user terminal, and When a user input related to driving control is received from a user terminal, a control unit that performs driving control according to the user input;

   An energy management system comprising:
4. According to claim 2 or 3,

   The control unit,

   An energy management system that provides control to improve fuel efficiency by providing the recovered energy to a cylinder of the construction machine when a user input for controlling the machine to operate in eco mode is received.
5. According to claim 2 or 3,

   The control unit,

   An energy management system that provides control to improve the force and speed required for the next operation by providing the recovered energy to the motor or engine of the construction machine when a user input for controlling it to run in power mode is received.
6. According to claim 2 or 3,

   The user terminal is,

   An energy management system that generates monitoring information about the status of the energy recovery device using the received information and outputs the generated monitoring information in real time.
7. According to clause 1,

   The cloud server is,

   The amount of recovered energy is converted into calorie units, the converted ton of oil equivalent to the total calorific value of diesel is applied to the converted energy amount to calculate the amount of diesel for the corresponding amount of energy, and the standard diesel price is applied to the calculated amount of diesel. An energy management system that calculates cost savings by applying
8. According to clause 7,

   The cloud server is,

   An energy management system characterized in that the monthly subscription fee is calculated in proportion to the savings cost, or by adding an incentive according to the savings cost to a preset amount.
9. According to clause 1,

   The cloud server is,

   An energy management system that further calculates the amount of carbon emissions reduced using the amount of recovered energy.
10. According to clause 1,

    The electronic payment device is,

    If the user terminal does not request the payment even after a preset time has elapsed, the energy recovery device is controlled to stop recovering energy by transmitting information related to non-completion of payment to the cloud server and the user terminal. Management system.
11. An energy recovery device installed in a construction machine, recovering some of the energy that drives the construction machine, and calculating the amount of the recovered energy;

    A user terminal that calculates a monthly subscription fee related to recovered energy based on the calculated amount of energy and receives user input related to payment of the calculated monthly subscription fee; and

    When the user input is an input requesting payment of the monthly subscription fee, an electronic payment device that pays the monthly subscription fee and transmits payment completion related information to the user terminal;

    Energy management system including.
12. A step in which an energy recovery device recovers some of the energy used to drive construction machinery;

    The energy recovery device calculating the amount of recovered energy and transmitting the calculated amount of energy to a cloud server;

    The cloud server calculating a monthly subscription fee related to recovered energy based on the amount of energy, and transmitting the calculated monthly subscription fee to a user terminal and an electronic payment device;

    The user terminal receiving a user input related to payment of the calculated monthly subscription fee and transmitting the input user input to the electronic payment device; and

    When the electronic payment device receives a user input requesting payment of the monthly subscription fee from the user terminal, paying the monthly subscription fee and transmitting payment completion related information to the cloud server and the user terminal;

    Energy management method including.

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