[0001] The present disclosure relates, in general, to elevator system, and more specifically, relates to a system and method for energy management of elevators.

BACKGROUND
[0002] Elevators/lifts donning an outdated mechanical model of yore, uses a simple pulley-counterweight system to hoist the car equipped with an electric motor and various safety systems. Although this system is reliable and accepted worldwide, however, the system does not perform well in terms of reducing the power consumption by the motor and/or the internal components of the car and the strain on the motor. Another problem with the whole set up is the lack of cellular reception in the car itself, causing inconvenience to the passengers.
[0003] Recently, an array of motion sensors housed near the floor of the car, which in theory may have detected any user entering or leaving the cart, however, it is difficult to time and record presence of the user in the car in case of multiple individuals. The sensor proved to be incompetent in the cases where one user leaves the cart while others stays, causing undesired turning off of the lights. Also, the delicacy of the component itself may pose an enormous challenge to not only the maintenance team but the designers as well.
[0004] Several techniques have been known in the art to improve cellular reception inside the elevator, by installing a powerful antenna in midst of the elevator lobby, or smaller antennae every few feet. Additional repeaters on top the elevator body can be placed, and coaxial cable in the shaft. However, these techniques are proven to be troublesome, expensive and irrelevant.
[0005] Therefore, there is a need in the art to provide a means that can effectively manage the power consumption of elevators by solving the aforementioned problems.

OBJECTS OF THE PRESENT DISCLOSURE
[0006] An object of the present disclosure relates, in general, to elevator system, and more specifically, relates to a system and method for energy management of elevators.
[0007] Another object of the present disclosure is to provide a system that can be installed easily
[0008] Another object of the present disclosure is to provide a system that can increase the overall safety of the users.
[0009] Another object of the present disclosure is to provide a system that can reduce the power consumption.
[0010] Another object of the present disclosure is to provide a system that can improve the network/cellular connectivity.
[0011] Another object of the present disclosure is to provide a system that can acquire and transmit the current status information of the elevator to improve the safety of the passengers and maintainability of elevators.
[0012] Another object of the present disclosure is to provide a system can determine fault pre-warning, remote monitoring of fault process, management of elevator, elevator troubleshooting, and thereby improve the efficiency of safety of the users.
[0013] Another object of the present disclosure is to provide a system that can reduce strain on motor.
[0014] Yet another object of the present disclosure is to provide system in which decreasing the counterweight by a lesser amount which can directly result in increased payload capacity of the elevator.

SUMMARY
[0015] The present disclosure relates, in general, to elevator system, and more specifically, relates to a system and method for energy management of elevators.
[0016] In an aspect, the present disclosure provides a system for energy management of elevator, the system including an elevator carriage configured in shaft of the elevator, the elevator carriage adapted to accommodate one or more objects, one or more pulleys configured on top portion of the elevator carriage, and on the top portion of the shaft, a plurality of cables coupled to the one or more pulleys, the plurality of cables adapted to connect the carriage with the one or more pulleys, a motor coupled to the one or more pulleys, the motor operable to move the elevator carriage in upward direction and downward direction, one or more sensors configured in of elevator carriage, the one or more sensors adapted to detect a set of attributes in the elevator carriage, to activate one or more electronic devices in the elevator carriage, a transceiver configured in the elevator carriage, the transceiver adapted to transmit the set of attributes to a memory device operatively coupled to the system, and a controller operatively coupled to the one or more sensors, motors and transceiver, the controller operatively coupled with a memory, said memory storing instructions executable by the controller to operate, the motors, to move the elevator carriage in upward direction and downward direction, receive, from the one or more sensors, the set of attributes of the elevator carriage, the set of attributes pertaining to any or a combination of presence of objects, temperature, and defects in the elevator carriage, transmit, from the transceiver, the set of attributes to the memory device, to extract a set of values from the set of attributes, wherein, based on the determination of the extracted set of values with corresponding reference range of values in the memory device, the controller is configured to control the motors and the one or more electronic devices to facilitate energy management in the elevator.
[0017] In an embodiment, a transceiver can be configured in the elevator carriage, the transceiver adapted to provide signal coverage in the elevator carriage.
[0018] In another embodiment, the memory device operatively coupled with the controller, the memory device configured to store a log of operations of the system, the log of operations comprising any or a combination of the set of attributes of one or more sensors, the extracted set of values, reference ranges, and the determined diagnosis.
[0019] In another embodiment, the memory device can be a cloud storage.
[0020] In another embodiment, the one or more sensors can include any or a combination of ultrasonic sensor, temperature sensor and humidity sensor.
[0021] In another embodiment, the transceiver can be a router.
[0022] In another embodiment, the electronic devices can include any or a combination of light, fan and air conditioner (AC).
[0023] In another embodiment, objects may include a combination of passengers
[0024] In an aspect, the present disclosure provides a method for energy management of elevator, the method including operating, the motors, to move elevator carriage in upward direction and downward direction, the motor coupled to one or more pulleys, wherein one or more pulleys configured on top portion of the elevator carriage, and on top portion of the shaft, receiving, at a computing device, from one or more sensors, a set of attributes of elevator carriage to activate the one or more electronic devices, the set of attributes pertaining to any or a combination of presence of objects, temperature, and defects in the elevator carriage, the one or more sensors configured in of elevator carriage, transmitting, at the computing device, from the transceiver, the set of attributes to a memory device, to extract a set of values from the set of attributes, wherein, based on the determination of the extracted set of values with corresponding reference range of values, the computing device is configured to control the motors and the electronic devices to facilitate energy management in the elevator.
[0025] Various objects, features, aspects, and advantages of the inventive subject matter will become more apparent from the following detailed description of preferred embodiments, along with the accompanying drawing figures in which like numerals represent like components.

BRIEF DESCRIPTION OF THE DRAWINGS
[0026] The following drawings form part of the present specification and are included to further illustrate aspects of the present disclosure. The disclosure may be better understood by reference to the drawings in combination with the detailed description of the specific embodiments presented herein.
[0027] FIG. 1A and FIG 1B illustrate exemplary representation of a system for energy management of elevators, in accordance with an embodiment of the present disclosure.
[0028] FIG. 2 illustrate exemplary representation of the antenna band structure in the system, in accordance with an embodiment of the present disclosure.
[0029] FIG. 3 illustrate exemplary flow diagram of a method for energy management of elevators, in accordance with an embodiment of the present disclosure

DETAILED DESCRIPTION
[0030] The following is a detailed description of embodiments of the disclosure depicted in the accompanying drawings. The embodiments are in such detail as to clearly communicate the disclosure. If the specification states a component or feature “may”, “can”, “could”, or “might” be included or have a characteristic, that particular component or feature is not required to be included or have the characteristic.
[0031] As used in the description herein and throughout the claims that follow, the meaning of “a,” “an,” and “the” includes plural reference unless the context clearly dictates otherwise. Also, as used in the description herein, the meaning of “in” includes “in” and “on” unless the context clearly dictates otherwise.
[0032] The present disclosure relates, in general, to elevator system, and more specifically, relates to a system and method for energy management of elevators.The system can acquire and transmit the current status information of the elevator to improve the safety of the passengers and maintainability of elevators. The system can link one or more elevators and their components to form internet of things (IOT). The present disclosure can be described in enabling detail in the following examples, which may represent more than one embodiment of the present disclosure.
[0033] FIG. 1A and FIG 1B illustrate exemplary representation of a system for energy management of elevators, in accordance with an embodiment of the present disclosure.
[0034] Referring to FIG.1A, a system 100 (also referred to as elevator system 100, herein) can be configured to reduce the power consumption by motor and thereby can reduce the strain on the components of the system 100. The system 100 may include one or more pulleys 104, one or more cables 106, and a motor 108 configured in elevator carriage/car 102. The one or more pulleys 104 can be arranged on top portion of elevator carriage 102, wherein each of the one or more pulleys can be perpendicular to each other, and similar arrangement of the one or more pulleys 104 can be installed on the ceiling/top portion of elevator shaft.
[0035] In an embodiment, the arrangement of one or more pulleys 104 uses basic physics principal of mechanical advantage on the elevator system 100 to reduce the power consumption by the motor 108 and thereby reducing the strain on the component itself. A weight device e.g., counterweight can be decreased four times approximately in this arrangement of elevator carriage 102 subsequently payload capacity of the elevator can be enhanced.
[0036] For example, the counterweight generally amounts to weight of the carriage plus the payload when it is half loaded. So, a 2200 lbs capacity elevator may require around a 2000 lbs counterweight. However, with the present system 100, the required counterweight can be reduced to around 500 lbs. The other way of benefitting from this is, decreasing the counterweight by a lesser amount which may then directly result in increased payload capacity of the elevator.
[0037] The combination of one or more pulleys 104 decreases the amount of force applied to move an object by increasing the amount of rope/cables 106 used to raise the object. The length of rope 106 can be found by rope = original length rope X (the number additional pulleys/2, wherein the chances of breakage, and wear and tear of the carriage cable decreased by a considerable amount. The length of the rope/cable is added to itself with the addition of every 2 pulleys. However, with addition of 2 pulleys the effective weight of the car/carriage can be reduced by a whopping 50% or a suitable range.
[0038] In an embodiment, the system 100 further may include one or more sensors 202, a controller 204, a transceiver 208, and a memory device 210 as illustrated in FIG. 1B. The one or more sensors 202 can be configured in the elevator carriage 102, the one or more sensors 202 adapted to detect a set of attributes in the elevator carriage 102, to activate one or more electronic devices 212. The set of attributes can include presence, location, movement and/or attitude of one or more objects in the elevator carriage 102. The one or more sensors can also measure temperature, humidity, hinderance, defects and the like within the elevator carriage. The objects may include a combination of passengers, the operation of the one or more sensors 202 can improve the comfort of the passengers.
[0039] In an exemplary embodiment, the presence of the objects, defects and the like within the elevator carriage 102 can be detected by ultrasonic sensor. The temperature within the carriage and within the elevator shaft can be performed by temperature sensor and the humidity within the carriage 102 can be detected by humidity sensor. Irregular states of the carriage 102 or the elevator shaft may be closely monitored to determine if diagnosis is required. For example, when a defect e.g., wear and tear is detected early within the carriage 102 and within the elevator shaft, these defects can be reported by the one or more sensors 202 to determine if servicing is required.
[0040] In another embodiment, one or more electronic devices 212 can be configured in the elevator carriage 102, the one or more electronic devices 212 configured to be activated by operation of one or more sensors 202. The one or more electronic devices 212 can include any or a combination of light, fan, air conditioner (AC) and the like. The transceiver 208 (also referred to as router 208, herein) can be configured in the elevator carriage 102, the transceiver 208 adapted to transmit the set of attributes to the memory device 210 operatively coupled to the system 100.
[0041] In another embodiment, the controller 204 can be operatively coupled to the one or more sensors 202, motors 108 and transceiver 208, the controller 204 operatively coupled with a memory 206, the memory 206 storing instructions executable by the controller 204 to operate, the motors, to move the elevator carriage 102 in upward direction and downward direction, receive, from the one or more sensors 202, the set of attributes of the elevator carriage 102 to activate the one or more electronic devices 212, the set of attributes pertaining to any or a combination of presence of objects, temperature, and defects in the elevator carriage.
[0042] The controller 204 transmit, through the transceiver 208, the set of attributes to the memory device 210 to extract a set of values. Based on the determination of the extracted set of values from corresponding reference range of values in the memory device 210, the controller 204 can be configured to control the motors 108 and the one or more electronic devices 212 to facilitate energy management in the elevator. The reference range of values may include the predetermined ranges required to activate/deactivate the one or more electronic devices and the motors.
[0043] For example, ultrasonic sensors on the ceiling of the elevator carriage are installed to detect presence of the user, this data can be used to turn the lights on/off accordingly. The temperature sensor and humidity sensor detect the temperature and humidity within the elevator carriage to turn the fan/AC on/off accordingly. Similarly, irregular states e.g., wear and tear of the carriage or the elevator shaft may be closely monitored even before it happens.
[0044] In an example implementation, the data collected is then uploaded to the memory device 210 for further calculations. The temperature and humidity sensor can collect the respective data and uploads it to the memory device 210. This collected data from the one or more sensors 202 canbe processed to decide whether to turn the fans/ACs on/off. The memory device 210 can be a cloud storage, the memory device 210 operatively coupled with the controller 204, the memory device 210 configured to store a log of operations of the system 100, the log of operations including any or a combination of the set of attributes of one or more sensors, the extracted set of values, reference ranges and the determined diagnosis.
[0045] The system 100 can be installed easily and can transmit the collected information of the elevator in real time through the internet and the wireless communication network for processing, thereby can determine fault pre-warning, remote monitoring of fault process, management of elevator, elevator troubleshooting, and thereby improve the efficiency of safety of the users.
[0046] FIG. 2 illustrate exemplary representation of the antenna band structure in the system, in accordance with an embodiment of the present disclosure.
[0047] Referring to FIG. 2, antenna band structure 200 of the system 100 can be configured to improve the cellular reception in the elevator carriage 102. The system 100 can acquire and transmit the current status information of the elevator to improve the safety of the passengers and maintainability of elevators. The antenna band structure 200 may include many of the same components introduced in FIG. 1A above. Those components that are unchanged in this embodiment retain their original element number and are not reintroduced.
[0048] In another embodiment, the ultrasonic sensor can be coupled to the top portion of elevator, to detect the number of users in the elevator, the one or more temperature sensor and humidity sensors are also coupled to the elevator and the controller 204 can be operatively coupled to all the one or more sensors 202 to receive the data from the one or more sensors 202. The controller 204 can process the data by applying various techniques and turns on/off the electrical devices attached in the elevator.
[0049] The controller 204 can be operatively coupled to the one or more sensors 202, motor 108 and transceiver 208, the controller 204 can be capable of processing sensor observations and can control one or more electronic devices 212 located within the elevator carriage 102. The controllers can be integrated to the one or more sensors 202 or can be placed in separate unit or units. The controllers 204, based on the sensor observations, can control the electronic devices 212 and the motor 108.
[0050] In another embodiment, antenna bands 302 can be configured with the elevator carriage 202 to improve the cellular exceptions in the elevator carriage 102, the antenna bands 302 can run along the rails of the elevator carriage 102.The router/transceiver 208 can be installed on the top of the elevator carriage 202 to enhance the strength and band-width of the signal, work together to improve the data connectivity in the carriage, making the cloud connectivity possible.
[0051] Distributed antenna system (DAS) can be used to improve the cellular reception in the system 100. DAS can address the need for small-cell delivery, distributing wireless signals through a series of low and high-powered antennas to transmit signals at full strength. The DAS can enhance cellular wireless signal with the installation of antennas, routers and other components. The DAS can create cellular signal to provide coverage, and can distribute the signal between a centralized signal source and remote DAS nodes placed around the system, and can improve the network/cellular connectivity.
[0052] Further, the network can be a wireless network, a wired network or a combination thereof. The network can be implemented as one of the different types of networks, such as an intranet, local area network (LAN), wide area network (WAN), the internet, LTE network, Code Division Multiple Access (CDMA) or Global System for Mobile Communications (GSM) network or General Packet Radio Service (GPRS), and may also include an IEEE 802.11 (Wi-Fi) network, and the like. Further, network can either be a dedicated network or a shared network. The shared network represents an association of the different types of networks that use a variety of protocols, for example, Hypertext Transfer Protocol (HTTP), Transmission Control Protocol/Internet Protocol (TCP/IP), Wireless Application Protocol (WAP), and the like, to communicate with one another. Further, the network can include a variety of network devices, including routers, bridges, servers, mobile computing devices, storage devices, and the like.
[0053] FIG.3 illustrate exemplary flow diagram of a method for energy management of elevators, in accordance with an embodiment of the present disclosure.
[0054] Referring to FIG. 3, the method 400 can be implemented using a computing device, which can include one or more processors and controllers 204.The method includes operating 402, the motors, to move elevator carriage in upward direction and downward direction, the motor coupled to one or more pulleys, wherein one or more pulleys configured on top portion of the elevator carriage, and on top portion of the shaft.
[0055] The method 400 may include receiving 404, at the computing device, from one or more sensors, a set of attributes of elevator carriage, to activate one or more electronic devices in the elevator carriage, the set of attributes pertaining to any or a combination of presence of objects, temperature, and defects in the elevator carriage, the one or more sensors can be configured in of elevator carriage.
[0056] The method include transmitting 406, at the computing device, from the transceiver, the set of attributes to a memory device, to extract a set of values from the set of attributes, wherein, based on the determination of the extracted set of values from corresponding reference ranges in the memory device, the computing device can be configured to control 408 the motors and the electronic devices to facilitate energy management in the elevator.
[0057] The computing device can include controller 204, processor that can be in communication with each of a memory, and input/output devices.The processor may include a microprocessor or other devices capable of being programmed or configured to perform computations and instruction processing in accordance with the disclosure. Such other devices may include microcontrollers, digital signal processors (DSP), complex programmable logic device (CPLD), field programmable gate arrays (FPGA), application-specific assimilated circuits (ASIC), discrete gate logic, and/or other assimilated circuits, hardware or firmware in lieu of or in addition to a microprocessor.
[0058] The memory includes programmable software instructions that are executed by the processor. The processor may be embodied as a single processor or a number of processors. The processor and a memory may each be, for example located entirely within a single computer or other computing device. The memory, which enables storage of data and programs, may include random-access memory (RAM), read-only memory (ROM), flash memory and any other form of readable and writable storage medium.
[0059] It will be apparent to those skilled in the art that the elevator system 100 of the disclosure may be provided using some or all of the mentioned features and components without departing from the scope of the present disclosure. While various embodiments of the present disclosure have been illustrated and described herein, it will be clear that the disclosure is not limited to these embodiments only. Numerous modifications, changes, variations, substitutions, and equivalents will be apparent to those skilled in the art, without departing from the spirit and scope of the disclosure, as described in the claims.

ADVANTAGES OF THE PRESENT DISCLOSURE
[0060] The present disclosure provides a system that can be installed easily.
[0061] The present disclosure provides a system that can increase the overall safety of the users.
[0062] The present disclosure provides a system that can reduce the power consumption.
[0063] The present disclosure provides a system that can improve the network/cellular connectivity.
[0064] The present disclosure provides a system in which decreasing the counterweight by a lesser amount which can directly result in increased payload capacity of the elevator.
[0065] The present disclosure provides a system that can acquire and transmit the current status information of the elevator to improve the safety of the passengers and maintainability of elevators.
[0066] The present disclosure provides a system can determine fault pre-warning, remote monitoring of fault process, management of elevator, elevator troubleshooting, and thereby improve the efficiency of safety of the users.
[0067] The present disclosure provides a system that can reduce strain on motor.

Claims:1. A system (100) for energy management of elevator, the system comprising:
an elevator carriage (102) configured in shaft of the elevator, the elevator carriage adapted to accommodate one or more objects;
one or more pulleys (104) configured on top portion of the elevator carriage and on the top portion of shaft;
a plurality of cables (106) coupled to the one or more pulleys, the plurality of cables adapted to connect the elevator carriage with the one or more pulleys;
a motor (108) coupled to the one or more pulleys, the motor operable to move the elevator carriage in upward direction and downward direction;
one or more sensors (202) configured in the elevator carriage, the one or more sensors adapted to detect a set of attributes in the elevator carriage, to activate one or more electronic devices (212) in the elevator carriage;
a transceiver (208) configured in the elevator carriage, the transceiver adapted to transmit the set of attributes to a memory device (210) operatively coupled to the system; and
a controller (204) operatively coupled to the one or more sensors, motors and transceiver, the controller operatively coupled with a memory, said memory storing instructions executable by the controller to:
operate, the motors, to move the elevator carriage in upward direction and downward direction;
receive, from the one or more sensors, the set of attributes of the elevator carriage to activate the one or more electronic devices, the set of attributes pertaining to any or a combination of presence of one or more objects, temperature, and defects in the elevator carriage;
transmit, from the transceiver, the set of attributes to the memory device, to extract a set of values from the set of attributes;
wherein, based on the determination of the extracted set of values with corresponding reference range of values in the memory device, the controller is configured to control the motors and the one or more electronic devices to facilitate energy management in the elevator.
2. The system as claimed in claim 1, wherein a transceiver (208) configured in the elevator carriage, the transceiver adapted to provide signal coverage in the elevator carriage.
3. The system as claimed in claim 1, wherein the memory device (210) configured to store a log of operations of the system, the log of operations comprising any or a combination of the set of attributes of one or more sensors, the extracted set of values, reference ranges of values, and the determined diagnosis.
4. The system as claimed in claim 3, wherein the memory device (210) is a cloud storage.
5. The system as claimed in claim 1, wherein the one or more sensors (202) comprises any or a combination of ultrasonic sensor, temperature sensor and humidity sensor.
6. The system as claimed in claim 1, wherein the transceiver (208) is router.
7. The system as claimed in claim 1, wherein the one or more electronic devices comprise any or a combination of light, fan and air conditioner (AC).
8. The system as claimed in claim 1, the one or more objects comprise a combination of passengers.
9. The method (400) for energy management of elevator, the method comprising:
operating (402), the motors, to move elevator carriage in upward direction and downward direction, the motor coupled to one or more pulleys, wherein one or more pulleys configured on top portion of the elevator carriage, and on top portion of the shaft;
receiving (404), at a computing device, from one or more sensors, a set of attributes of elevator carriage, to activate one or more electronic devices in the elevator carriage, the set of attributes pertaining to any or a combination of presence of one or more objects, temperature, and defects in the elevator carriage, the one or more sensors configured in of elevator carriage; and
transmitting (406), at the computing device, from the transceiver, the set of attributes to a memory device, to extract a set of values from the set of attributes,
wherein, based on the determination of the extracted set of values with corresponding reference range of values in the memory device, the computing device is configured to control (408) the motors and the one or more electronic devices to facilitate energy management in the elevator.