The subject matter disclosed herein relates generally to the field of elevator systems, and specifically to a method and apparatus for operating an elevator system in a building evacuation.
Commonly, during an evacuation procedure occupants of a building are instructed to take the stairs and avoid the elevator systems. An efficient method of incorporating the elevators in to the overall evacuation procedures is desired.
According to one embodiment, a building elevator system is provided. The building elevator system including: a building having multiple floors; an elevator system within the building, the elevator system having at least one elevator car; a display located on each floor proximate the elevator system, wherein the display is configured to illuminate evacuation information including an estimated time of arrival of the elevator car and an elevator status; and a control system configured to control the building elevator system and determine the evacuation information to illuminate for each display in response to at least one of a location of the elevator car in the building, a floor location of the display, a speed of the elevator car, a remaining capacity of the elevator car, a number of passengers on each floor, and an evacuation priority of the floor.
In addition to one or more of the features described above, or as an alternative, further embodiments the building elevator system may include that the display displays the estimated time of arrival of the elevator car by illuminating digital numbers.
In addition to one or more of the features described above, or as an alternative, further embodiments the building elevator system may include that the display displays the estimated time of arrival of the elevator car by illuminating a status indicator light adjacent to a fixed estimated time of arrival.
In addition to one or more of the features described above, or as an alternative, further embodiments the building elevator system may include that the display displays the estimated time of arrival of the elevator car by illuminating a fixed estimated time of arrival.
In addition to one or more of the features described above, or as an alternative, further embodiments the building elevator system may include that the display displays the elevator status by illuminating a status indicator light adjacent to a fixed elevator status.
In addition to one or more of the features described above, or as an alternative, further embodiments the building elevator system may include that the display displays the elevator status by illuminating a fixed elevator status.
According to another embodiment, a method of operating a building elevator system for a building having multiple floors is provided. The method includes: controlling, using a control system, an elevator system, the elevator system including at least one elevator car; receiving, using the control system, an evacuation call; determining, using the control system, evacuation information; and displaying, using a plurality of displays, evacuation information, wherein a display is located on each floor proximate the elevator system; wherein the control system determines the evacuation information in response to at least one of a location of the elevator car in the building, a floor location of the display, a speed of the elevator car, a remaining capacity of the elevator car, a number of passengers on each floor, and an evacuation priority of the floor.
In addition to one or more of the features described above, or as an alternative, further embodiments the method may include that the display displays the estimated time of arrival of the elevator car by illuminating digital numbers.
In addition to one or more of the features described above, or as an alternative, further embodiments the method may include that the display displays the estimated time of arrival of the elevator car by illuminating a status indicator light adjacent to a fixed estimated time of arrival.
In addition to one or more of the features described above, or as an alternative, further embodiments the method may include that the display displays the estimated time of arrival of the elevator car by illuminating a fixed estimated time of arrival.
In addition to one or more of the features described above, or as an alternative, further embodiments the method may include that the display displays the elevator status by illuminating a status indicator light adjacent to a fixed elevator status.
In addition to one or more of the features described above, or as an alternative, further embodiments the method may include that the display displays the elevator status by illuminating a fixed elevator status.
According to another embodiment, a computer program product tangibly embodied on a computer readable medium is provided. The computer program product including instructions that, when executed by a processor, cause the processor to perform operations. The operations including the steps of: controlling, using a control system, an elevator system, the elevator system including at least one elevator car; receiving, using the control system, an evacuation call; determining, using the control system, evacuation information; and displaying, using a plurality of displays, evacuation information, wherein a display is located on each floor proximate the elevator system; wherein the control system determines the evacuation information in response to at least one of a location of the elevator car in the building, a floor location of the display, a speed of the elevator car, a remaining capacity of the elevator car, a number of passengers on each floor, and an evacuation priority of the floor.
In addition to one or more of the features described above, or as an alternative, further embodiments the computer program may include that the display displays the estimated time of arrival of the elevator car by illuminating digital numbers.
In addition to one or more of the features described above, or as an alternative, further embodiments the computer program may include that the display displays the estimated time of arrival of the elevator car by illuminating a status indicator light adjacent to a fixed estimated time of arrival.
In addition to one or more of the features described above, or as an alternative, further embodiments the computer program may include that the display displays the estimated time of arrival of the elevator car by illuminating a fixed estimated time of arrival.
In addition to one or more of the features described above, or as an alternative, further embodiments the computer program may include that the display displays the elevator status by illuminating a status indicator light adjacent to a fixed elevator status.
In addition to one or more of the features described above, or as an alternative, further embodiments the computer program may include that the display displays the elevator status by illuminating a fixed elevator status.
Technical effects of embodiments of the present disclosure include an elevator system having a display located on each floor displaying, through illumination of lights, evacuation information including the estimated arrival time of the next elevator car and an elevator status.
The foregoing features and elements may be combined in various combinations without exclusivity, unless expressly indicated otherwise. These features and elements as well as the operation thereof will become more apparent in light of the following description and the accompanying drawings. It should be understood, however, that the following description and drawings are intended to be illustrative and explanatory in nature and non-limiting.
The foregoing and other features, and advantages of the disclosure are apparent from the following detailed description taken in conjunction with the accompanying drawings in which like elements are numbered alike in the several FIGURES:
The elevator system 10 also includes a power source 12. The power is provided from the power source 12 to a switch panel 14, which may include circuit breakers, meters, etc. From the switch panel 14, the power may be provided directly to the drive unit 20 through the controller 30 or to an internal power source charger 16, which converts AC power to direct current (DC) power to charge an internal power source 18 that requires charging. For instance, an internal power source 18 that requires charging may be a battery, capacitor, or any other type of power storage device known to one of ordinary skill in the art. Alternatively, the internal power source 18 may not require charging from the external power source 12 and may be a device such as, for example a gas powered generator, solar cells, hydroelectric generator, wind turbine generator or similar power generation device. The internal power source 18 may power various components of the elevator system 10 when an external power source is unavailable. The drive unit 20 drives a machine 22 to impart motion to the elevator car 23 via a traction sheave of the machine 22. The machine 22 also includes a brake 24 that can be activated to stop the machine 22 and elevator car 23. As will be appreciated by those of skill in the art,
The controller 30 is responsible for controlling the operation of the elevator system 10. The controller 30 may also determine a mode (motoring, regenerative, near balance) of the elevator car 23. The controller 30 may use the car direction and the weight distribution between the elevator car 23 and the counterweight 28 to determine the mode of the elevator car 23. The controller 30 may adjust the velocity of the elevator car 23 to reach a target floor. The controller 30 may include a processor and an associated memory. The processor may be, but is not limited to, a single-processor or multi-processor system of any of a wide array of possible architectures, including field programmable gate array (FPGA), central processing unit (CPU), application specific integrated circuits (ASIC), digital signal processor (DSP) or graphics processing unit (GPU) hardware arranged homogenously or heterogeneously. The memory may be but is not limited to a random access memory (RAM), read only memory (ROM), or other electronic, optical, magnetic or any other computer readable medium.
The elevator system 10 may also include a sensor system 141 configured to detect a remaining capacity in a particular elevator car 23. The remaining capacity allows the controller 30 to determine how much space is left in the elevator car 23. For instance, if the remaining capacity is equal to about zero there is no space left in the elevator car 23 to accept more passengers, whereas if the remaining capacity is greater than zero there may be space to accept more passengers in the elevator car 23. The sensor system 141 is in operative communication with the controller 30. The sensor system 141 may use a variety of sensing mechanisms such as, for example, a visual detection device, a weight detection device, a laser detection device, a door reversal monitoring device, a thermal image detection device, and a depth detection device. The visual detection device may be a camera that utilizes visual recognition to identify individual passengers and objects in the elevator car 23 and then determine remaining capacity. The weight detection device may be a scale to sense the amount of weight in an elevator car 23 and then determine the remaining capacity from the weight sensed. The laser detection device may detect how many passengers walk through a laser beam to determine the remaining capacity in the elevator car 23. Similarly, a door reversal monitoring device also detects passengers entering the car so as not to close the elevator door on a passenger and thus may be used to determine the remaining capacity. The thermal detection device may be an infrared or other heat sensing camera that utilizes detected temperature to identify individual passengers and objects in the elevator car 23 and then determine remaining capacity. The depth detection device may be a 2-D, 3-D or other depth/distance detecting camera that utilizes detected distance to an object and/or passenger to determine remaining capacity. As may be appreciated by one of skill in the art, in addition to the stated methods, additional methods may exist to sense remaining capacity and one or any combination of these methods may be used to determine remaining capacity in the elevator car 23.
The building 102 includes multiple floors 80a-80f, each having an elevator call button 89a-89f and an evacuation alarm 88a-88f. The elevator call button 89a-89f may be a push button and/or a touch screen and may be activated manually or automatically. For example, the elevator call button 89a-89f may be activated by a building occupant pushing the elevator call button 89a-89f. The elevator call button 89a-89f may also be activated voice recognition or a passenger detection mechanism in the hallway, such as, for example a weight sensing device, a visual recognition device, and a laser detection device. The elevator call button 89a-89f sends an elevator call to the control system 110. The evacuation alarm 88a-88f may be activated or deactivated either manually or through an automated alarm system, such as, for example a fire alarm and smoke alarm. If the evacuation alarm 88a-88f is activated, an evacuation call is sent to the control system 110 indicating the respective floor 80a-80f where the evacuation alarm 88a-88f was activated. In the example of
The first evacuation floor may be surrounded by padding floors, which are floors that are considered at increased risk due to their proximity to the evacuation floor and thus should also be evacuated. In the example of
In one embodiment, there may be more than one evacuation floor. For example, after the first evacuation floor activates an evacuation alarm, a second evacuation floor may also activate an evacuation alarm. In the example of
The control system 110 may be configured to determine how many passengers are on a particular floor 80a-80f. The control system 110 may determine how many passengers are on a particular floor 80a-80f using an executable algorithm and/or a look up table that may be stored within the memory of the controller 30. The look up table may contain predicted number for how many passengers are on each floor 80a-80f on a particular date at a particular time. For example, the predicted number of passenger may be more for a day during the work week than a day on the weekend. In one embodiment, this data may be provided into the system by a building manager, tenants, or businesses located in the building 102. For example, the data could include a number of employees employed at a business on a particular floor of the building 102 and the expected working hours and days of those employees. In one embodiment, expected working hours and days could be entered for each employee. The data may be input when the system is first commissioned or updated at periodic intervals as desired.
The control system 110 may also determine how many passengers are on a particular floor 80a-80f using a building integrated personnel sensing system 140 composed a plurality of sensors throughout the building 102 configured to detect a number of passengers on each floor 80a-80f. The building integrated personnel sensing system 140 may count the number of passengers entering and exiting each floor 80a-80f using stairwell door sensors 142a-142f and also the sensor systems 141a-141d in each elevator car 23a-23d. In one embodiment, the number of personnel on a particular floor may be determined by using security access control data (and corresponding floor access permissions/information) as personnel scan their credentials as they enter the building.
The stairwell door sensor 142a-142f counts the number of passengers entering and exiting the respective stairwell door 132a-132f. The stairwell door sensor 142a-142f may use a variety of sensing mechanisms such as, for example, a visual detection device, a weight detection device, a laser detection device, a thermal image detection device, and a depth detection device. The visual detection device may be a camera that utilizes visual recognition to identify and count individual passengers entering and exiting a particular floor 80a-80f from the stairwell 130. The weight detection device may be a scale to sense the amount of weight in an area proximate the stairwell door 132a-132f and then determine the number of passengers entering and exiting a particular floor 80a-80f from the weight sensed. The laser detection device may detect how many passengers walk through a laser beam located proximate the stairwell door 132a-132f to determine the number of passengers entering and exiting a floor 80a-80f. The thermal detection device may be an infrared or other heat sensing camera that utilizes detected temperature to identify how many passengers are located proximate the stairwell door 132a-132f to determine the number of passengers entering and exiting a floor 80a-80f. The depth detection device may be a 2-D, 3-D or other depth/distance detecting camera that utilizes detected distance to a passenger to determine how many passengers are located proximate the stairwell door 132a-132f to determine the number of passengers entering and exiting a floor 80a-80f. The stairwell door sensor 142a-142f interacts with the sensor systems 141a, 141b to determine the number of passengers on each floor 80a-80f. As may be appreciated by one of skill in the art, in addition to the stated methods, additional methods may exist to sense passengers and one or any combination of these methods may be used to determine the number of passengers entering and exiting a floor 80a-80f.
Advantageously, in one embodiment, by tracking the number of passengers entering or exiting a floor 80a-80f, when an evacuation call is received from a first evacuation floor, the controller 30 could quickly identify the floors 80a-80f with the most passengers and allocate elevator cars 23a-23d accordingly.
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The display 120 may include a second fixed elevator status 126b indicating “Elevators available for Occupant evacuation” along with an adjacent second status indicator light 126a. The second status indicator light 126a is configured to illuminate as determined by the control system 110. For example, the second status indicator light 126a may illuminate when the control system 110 determines that the elevator cars 23a-23d may be used for evacuation. In an embodiment the fixed elevator status 124b, 126b may also be translucent and illuminate as determined by the control system 110. As seen in
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As described above, embodiments can be in the form of processor-implemented processes and devices for practicing those processes, such as processor. Embodiments can also be in the form of computer program code containing instructions embodied in tangible media, such as network cloud storage, SD cards, flash drives, floppy diskettes, CD ROMs, hard drives, or any other computer-readable storage medium, wherein, when the computer program code is loaded into and executed by a computer, the computer becomes a device for practicing the embodiments. Embodiments can also be in the form of computer program code, for example, whether stored in a storage medium, loaded into and/or executed by a computer, or transmitted over some transmission medium, loaded into and/or executed by a computer, or transmitted over some transmission medium, such as over electrical wiring or cabling, through fiber optics, or via electromagnetic radiation, wherein, when the computer program code is loaded into an executed by a computer, the computer becomes an device for practicing the embodiments. When implemented on a general-purpose microprocessor, the computer program code segments configure the microprocessor to create specific logic circuits.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting. While the description has been presented for purposes of illustration and description, it is not intended to be exhaustive or limited to embodiments in the form disclosed. Many modifications, variations, alterations, substitutions or equivalent arrangement not hereto described will be apparent to those of ordinary skill in the art without departing from the scope of the disclosure. Additionally, while the various embodiments have been described, it is to be understood that aspects may include only some of the described embodiments. Accordingly, the disclosure is not to be seen as limited by the foregoing description, but is only limited by the scope of the appended claims.