KR20220067496A - Method and apparatus for controlling elevator - Google Patents

Abstract

Provided is a method for controlling an elevator while an apparatus for controlling the elevator connects with a control unit or monitoring unit of the elevator. The method for controlling the elevator comprises: a step of supporting connection with an external device installed outside the elevator; a step of collecting external data from the external device and inner data of the elevator by using an elevator resource table; and a step of monitoring the elevator by using the external data and the inner data.

Description

Elevator control method and apparatus

The present invention relates to a method and apparatus for controlling an elevator, and more particularly, to a method and apparatus for controlling an elevator that can safely control an elevator by interworking with external data based on a device additionally installed in the elevator or an elevator.

An elevator is a mechanical device for moving that is closely used in real life. Since elevators are devices used to move people, safety is very important. For this reason, devices such as a vibration sensor, a fire detection sensor, an earthquake sensor, etc. are being developed to ensure elevator safety, and the newly developed devices are being installed in a new elevator or a previously installed elevator.

Recently, emergency elevators and the like that can be used in case of emergency have been developed. Such an elevator is an elevator manufactured by reinforcing durability so that it can be supported in an emergency in an existing elevator. There is a need for a method and apparatus for detecting and responding to emergencies and emergencies in such elevators and previously installed elevators.

The safety problem of the elevator itself can be diagnosed through devices installed inside the elevator. However, in the case of an emergency that occurs inside a building, it is difficult to accurately judge only with the data inside the elevator. For this, a method of adding a sensor to the elevator to detect and operate an emergency situation based on the sensor may be used. However, this method increases the cost because a device needs to be added to the elevator, and the difficulty of management increases due to the individual installation of the elevator. In addition, even in situations that occur externally, such as earthquakes, there is a limit to identifying emergency situations with internal data or additional devices. In addition, there may be cases in which additional sensors cannot be installed inside the elevator due to problems such as structure and installation.

An object of the present invention is to provide an elevator control method and apparatus capable of enhancing elevator safety and supporting evacuation and emergency operation.

According to an embodiment of the present invention, there is provided a method for controlling an elevator in an elevator control apparatus in conjunction with a control panel or a monitoring panel of the elevator. The elevator control method includes the steps of supporting interworking with an external device installed outside of the elevator, processing external data from the external device and internal data of the elevator using an elevator resource table, and the external data and and monitoring the elevator using the internal data, wherein the elevator resource table includes a group identifier for identifying each group when dividing the elevator into a plurality of groups, and a resource for identifying individual devices located in each group Contains identifiers.

The processing includes mapping the external device to a virtual sensor, and managing the resource identifier of the virtual sensor as another group among the plurality of groups.

The managing may include allocating the resource identifier of the virtual sensor by using the most significant bit value of the resource identifier of the external device.

The processing includes receiving an external data request inside the elevator, and collecting the external data through interworking with the external device according to the external data request, wherein the external data request is It may include the resource identifier of the desired device.

The processing includes receiving a data request from the outside of the elevator, and when the device corresponding to the data request is not installed in the elevator, data corresponding to the data request through interworking with the external device The method further includes the step of collecting and transmitting to the outside of the elevator, wherein the data request may include a resource identifier of a device to be requested.

The supporting may include using an Internet of Things (IoT) communication protocol and data model for communication with the external device.

According to another embodiment of the present invention, an elevator control apparatus for controlling an elevator is provided. The elevator control apparatus includes a transceiver that supports interworking with a control panel or monitoring panel of the elevator and interworking with an external device installed outside the elevator, a group identifier for identifying each group when the elevator is divided into a plurality of groups, and the An elevator resource table including resource identifiers for identifying individual devices located in each group, and external data from the external device and internal data of the elevator using the elevator resource table, the external data and the external data and a data processing unit for monitoring the elevator using

The elevator control apparatus may further include a table management unit that maps the external device to the virtual sensor of the elevator and manages the resource identifier of the virtual sensor as another group among the plurality of groups.

The transceiver may support an Internet of Things (IoT) communication protocol and data model for interworking with the external device, and support a communication protocol and data model for interworking with the elevator.

The data processing unit may collect data from a device corresponding to a resource identifier included in the data request.

According to an embodiment of the present invention, it is possible to efficiently interwork with external data such as public data that is already provided or a device such as a sensor installed for common use outside, and through this, a device such as a sensor can be installed inside the elevator. It can detect and respond to emergencies and emergencies without installation.

Also, when an external sensor is installed as a device inside the elevator, it can be applied by simply changing the table.

1 to 3 are views each showing an example of an elevator control apparatus according to an embodiment of the present invention.
4 is a diagram illustrating a function of a gateway for data interworking according to an embodiment of the present invention.
5 is a diagram illustrating an example of a message structure used in a control panel protocol according to an embodiment of the present invention.
6 is a diagram illustrating a process of interworking with an external server in an elevator according to an embodiment of the present invention.
7 to 9 are views each showing a process of interworking with an external sensor in an elevator according to an embodiment of the present invention.
10 is a view showing an elevator control apparatus according to an embodiment of the present invention.
11 is a view showing an elevator control apparatus according to another embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings, embodiments of the present invention will be described in detail so that those of ordinary skill in the art to which the present invention pertains can easily implement them. However, the present invention may be implemented in several different forms and is not limited to the embodiments described herein. And in order to clearly explain the present invention in the drawings, parts irrelevant to the description are omitted, and similar reference numerals are attached to similar parts throughout the specification.

Throughout the specification and claims, when a part "includes" a certain element, it means that other elements may be further included, rather than excluding other elements, unless otherwise stated.

Now, an elevator control method and apparatus according to an embodiment of the present invention will be described in detail with reference to the drawings.

1 to 3 are views each showing an example of an elevator control apparatus according to an embodiment of the present invention.

1, the elevator 100 is installed inside the building, and for various safety and control, an internal sensor 110 that collects elevator internal data generated in the interior of the elevator 100 and for controlling the interior of the elevator It is composed of a control panel 120 .

The control panel 120 is connected to the monitoring panel 200 for monitoring a plurality of elevators installed inside the building.

The monitoring group 200 is installed inside a building and managed by a building manager.

The elevator control device 300 may be connected to the monitoring panel 200 to remotely monitor the elevator 100 and perform a function of a gateway between the inside and the outside of the elevator 100 . The elevator control apparatus 300 may be installed inside a building or outside the building, and the elevator internal data generated inside the elevator 100 and the elevator external data collected through an external device installed outside the elevator 100 is collected and analyzed, and the elevator 100 is controlled based on the analysis result. To this end, the elevator control device 300 analyzes the elevator internal data and the elevator external data in conjunction.

The elevator control apparatus 300 creates and manages external devices as a virtual sensor 130 by one-to-one mapping. The elevator control apparatus 300 virtualizes the external device like a sensor inside the elevator, and processes external elevator data collected from the external device.

The external device may include, for example, the external server 400 and/or the external sensor 500 .

The external sensor 500 may include an IoT sensor such as a vibration sensor, a fire detection sensor, and an earthquake sensor.

The external server 400 may be an elevator application server or a data server for storing and managing public data.

A structure for data interworking may be defined as type 1, type 2, and type 3.

Type 1 is a structure in which the elevator control device 300 interlocks elevator internal data collected by the monitoring panel 200 and elevator external data of an external device collected through a gateway, as shown in FIG. 1 . At this time, the elevator control device 300 performs a function of a gateway.

Type 2 is a structure that performs the function of a gateway in the monitoring panel 200a, as shown in FIG. In this case, the monitoring panel 200a may implement the function of the elevator control device 300 shown in FIG. 1 .

Type 3 is a structure in which the control panel 120a performs a function of a gateway, as shown in FIG. 3 , and has a structure in which the control panel 120a directly interworks with an external device through the Internet. In this case, the control panel 120a may implement the function of the elevator control device 300 illustrated in FIG. 1 .

4 is a diagram illustrating a function of a gateway for data interworking according to an embodiment of the present invention.

Referring to FIG. 4 , the elevator control device 300 performing the function of a gateway may be implemented in the monitoring panel 200a by extending the monitoring panel 200a or may be implemented in the control panel 120a by extending the control panel 120a.

The elevator control apparatus 300 collects elevator external data through interworking with the external device 600 , collects elevator internal data through interlocking with the control panel 120 of the elevator 100 , and uses the collected data to an external device (600).

The elevator control device 300 supports a physical layer supporting serial communication used in the elevator 100 in order to interwork with the control panel 120 . The serial communication used in the elevator 100 may include, for example, RS (Recommended Standard)-232, RS-422, RS-485, and the like. When a physical layer such as RS-232, RS-422, or RS-485 is supported, the elevator control device 300 uses a communication protocol and data model conforming to the physical layer. Some elevators also support CAN (Controller Area Network). Accordingly, the elevator control device 300 may use a protocol and data model supporting CAN.

The protocol and data model used between the elevator control apparatus 300 and the external device 600 may be a protocol and data model used in the IoT environment. The elevator control apparatus 300 may communicate with the external device 600 having a network interface for external connection. For this purpose, IoT data models and protocols can be used. For example, the elevator control apparatus 300 may use a data model such as Lightweight Machine to Machine (LWM2M), oneM2M, or Open Connectivity Foundation (OCF). The elevator control device 300 may use a communication protocol such as a Constrained Application Protocol (CoAP), a Message Queue for Telemetry Transport (MQTT), or a HyperText Transfer Protocol (HTTP).

The elevator control apparatus 300 manages an elevator resource table for interworking with elevator external data of the external device 600 . The elevator control apparatus 300 may define a group ID and a resource ID for the elevator resource table, and map the group ID and the resource ID to information of the external device 600 and information such as a request URL (Uniform Resource Locator). .

The group ID identifies the group when classifying the elevator resource into a group. For example, an elevator may be classified into elevator resource groups such as a hoistway, a car, a platform, and a pit, and a group ID is assigned to each elevator resource group. Each elevator resource group has lower device resources such as lower level sensors and devices, and lower device resources may be identified by resource IDs. In the elevator system, an object identifier (OID) may be used as a group ID, and a relative identifier (RID) may be used as a resource ID.

In addition, the elevator control device 300 may distinguish and define the real sensor and the virtual sensor not only in the expansion group but also in the lower RID of each elevator resource group OID.

The elevator control apparatus 300 may reserve a virtual resource identifier value to use the virtual resource and allocate it to the virtual resource later. For example, a value obtained by changing the most significant bit to another value in the lower RID of each ODI may be reserved for a virtual resource. In this case, an actual external sensor and a virtual sensor may be distinguished by utilizing the most significant bit of the RID.

Also, the elevator control apparatus 300 may define an extension group to define a virtual device for connecting an additional device to the elevator. The expansion group may be defined as a group other than the elevator resource group such as a hoistway, a car, a platform, a pit, and the like, and an OID for the expansion group may be assigned. In the RID under the extension group defined in the OID, the real sensor and the virtual sensor may be separately defined. The OID and RID each consist of 1 byte, and an actual external sensor and a virtual sensor can be distinguished by utilizing the most significant bit of the RID. For example, the OID of the hoistway is 0000 0001, the OID of the car is 0000 0010, the OID of the platform is 0000 0100, the OID of the pit is 0000 1000, and the OID of the expansion group is 0001 0000. In the RID of , the RID of the virtual sensor may be defined as 1xxx xxxx, and the RID of the real external sensor may be defined as 0xxx xxxx.

In this way, if a separate expansion group is defined to connect an additional device to the elevator, an external device can be easily managed by mapping an external device to a virtual device based on the expansion group, and an additional device can be connected to the legacy elevator system for easy management can do.

5 is a diagram illustrating an example of a message structure used in a control panel protocol according to an embodiment of the present invention.

Referring to FIG. 5 , the messages used in the control panel protocol used between the control panel 120 and the elevator control device 300 are CRC for checking start flag and end flag, destination address, message type, data length, data and error. It includes fields such as (Cyclic Redundancy Check). The start flag field, the end flag field, the destination address field, and the message type field may each have a size of 1 byte. The data length field and the CRC field may have a size of 2 bytes.

The start flag field and the end flag field indicate the start and end of the message, respectively.

The destination address field may include a broadcast address, an individual address, and a reserved address of a virtual sensor.

The data length field indicates the length of data.

The message type field indicates messages such as data request and response and data update request and response.

The data field contains data. Depending on the type of message, it is possible to define the data field part in the message structure.

The data field of the data request message may include an object identifier (OID), a relative identifier (RID), and a mask (OIDMASK, RIDMASK). The OID indicates a group ID when classifying the elevator resource into an elevator resource group. RID represents a resource ID. That is, RID is used to define the lower device resource of each group. In addition, it is possible to request a plurality of resource information using a mask.

The data field of the data response message may include OID, RID, length and value. The data field of the data update request message may be configured the same as the data field of the data request message.

The data field of the data update response message may include OID, RID, and result. Results can indicate success, failure, no, change rejection, and so on.

6 is a diagram illustrating a process of interworking with an external server in an elevator according to an embodiment of the present invention.

Referring to FIG. 6 , the control panel 120 of the elevator 100 receives sensor data of the sensor 110 ( S602 ), and transmits the received sensor data to the monitoring panel 200 ( S604 ).

The monitoring panel 200 transmits sensor data to the elevator control device 300 that performs a gateway function (S606), and the elevator control device 300 provides sensor data according to a protocol and data model for interworking with the external server 400 is processed and transmitted to the external server 400 (S608).

The external server 400 processes the sensor data and transmits a message for providing an application service to the elevator control device 300 (S610).

The elevator control device 300 processes the message received from the external server 400 according to the protocol and data model for interworking with the control panel 120 , and sends the processed message to the control panel 120 through the monitoring panel 200 . It transmits (S612, S614).

The control panel 120 may transmit the received message to the sensor 110 (S616).

7 to 9 are views each showing a process of interworking with an external sensor in an elevator according to an embodiment of the present invention.

The process of interworking with the external sensor 500 in the elevator 100 may be started by a request from the external server 400 as shown in FIG. 7 , and as shown in FIGS. 8 and 9 , the It may be started by the control panel 120 or the monitoring panel 200 . In the case of being started by the request of the external server 400, it is possible if the application utilizing the external sensor 500 is configured. For example, there is no seismic sensor inside the elevator, but if there is an earthquake detection emergency operation application in the external application, and interlocking with this is required, interworking with an external earthquake sensor or a data server storing the data may be required. In this case, the external server 400 may request data through interworking with the external sensor 500 .

First, referring to FIG. 7 , the external server 400 requests sensor data from the elevator control device 300 performing a gateway function ( S702 ).

The elevator control device 300 requests sensor data from the external sensor 500 (S704), and collects sensor data from the external sensor 500 and the virtual sensor 130 mapped to the external sensor 500 (S706) . The elevator control device 300 may perform data conversion based on the elevator resource table or process a request from the external server 400 . As described above, the resource of the elevator is divided based on OID and RID, and the real sensor and the virtual sensor can be distinguished by the most significant bit of the RID. The external server 400 also classifies the resources of the elevator based on OID and RID, and requests sensor data to the elevator control device 300 including the OID and RID of the desired sensor, the elevator control device 300 is the elevator resource table With reference to , the external server 400 may request sensor data from the requested external sensor 500 .

The elevator control device 300 may request elevator information interlocked with the external sensor 500 to the monitoring panel 200 (S708), and may receive elevator information from the monitoring panel 200 (S714). If necessary, the monitoring panel 200 may request elevator information from the control panel 120 (S710) and collect elevator information from the control panel 120 (S712).

The elevator control device 300 combines the received elevator information and sensor data and transmits it to the external server 400 (S716). Alternatively, if necessary elevator information has already been collected by the elevator control device 300, the elevator information and sensor data may be combined and transmitted to the external server 400 without performing steps S708 to S714 (S716).

On the other hand, referring to FIG. 8 , when the monitoring panel 200 requests sensor data from the elevator control device 300 ( S802 ), the external server 400 requests the sensor data from the external sensor 500 ( S804 ), and the external Sensor data is collected from the sensor 500 (S806).

Next, the elevator control device 300 transmits the collected sensor data to the monitoring panel 200 (S808).

Also, referring to FIG. 9 , it is possible to request sensor data from the control panel 120 to the monitoring panel 200 ( S902 ).

When the monitoring panel 200 receives a sensor data request from the control panel 120 , the monitoring panel 200 requests sensor data to the elevator control device 300 performing a gateway function ( S904 ). The monitoring panel 200 may acquire sensor data from the elevator control device 300 through the same process as the process (S804 to S808) described with reference to FIG. 8 (S906 to S910).

When the monitoring panel 200 acquires sensor data, it transmits the sensor data to the control panel 120 (S912).

The processes shown in FIGS. 8 and 9 correspond to a case where external sensor data is requested from the inside of the elevator 100 . In this case, as described above, the corresponding request may be performed by the control panel 120 or the monitoring panel 200 . When a request is received from the control panel 120 or the monitoring panel 200 , the elevator control device 300 requests information from the external sensor 500 , and transmits the information received from the external sensor 500 to the internal message structure of the elevator 100 . It is processed according to the requirements and transmitted to the control panel 120 or the monitoring panel 200 .

Since the RID corresponding to the virtual sensor below the expansion group allocated to the elevator 100 is not a device that exists in the elevator, when the monitoring panel 200 or the control panel 120 requests related data, the elevator control device 300 receives a related message from the external device mapped with the virtual sensor, and returns to the monitoring panel 200 or the control panel 120 .

In addition, when an external device mapped as a virtual sensor is additionally installed in the elevator 100, the elevator control apparatus 300 uses the OID and RID as it is, and no longer uses the RID of the corresponding virtual sensor defined under the extension group. It is not managed as a virtual resource.

10 is a view showing an elevator control apparatus according to an embodiment of the present invention.

Referring to FIG. 10 , the elevator control apparatus 1000 may include an elevator resource table 1010 , a data processing unit 1020 , a transceiver 1030 , and a table management unit 1040 .

The elevator resource table 1010 stores OIDs and RIDs. In this case, the virtual sensor and the real sensor may be distinguished by the RID under the OID corresponding to the extended group. Alternatively, a virtual sensor and a real sensor may be distinguished by RIDs under all OIDs.

The data processing unit 1020 is between the control panel 120 or the monitoring panel 200 of the elevator 100 and the external server 400 and between the control panel 120 or the monitoring panel 200 of the elevator 100 and the external sensor 500 . Perform data conversion. The external server 400 or the elevator 100 utilizing the elevator resource table 1010 performs a request based on RID, and the data processing unit 1020 requests actual data from an external device corresponding to the RID and returns a response value. Or, it returns the stored data value.

The transceiver 1030 communicates with the control panel 120 , the monitoring panel 200 , the external server 400 , and the external sensor 500 of the elevator 100 . The transceiver 1030 may support a physical layer supporting serial communication used in the elevator 100 in order to interwork with the control panel 120 . The transceiver 1030 may support CAN communication. In addition, the transceiver 1030 may support a physical layer for IoT communication between the external server 400 or the external sensor 500 .

The table management unit 1040 manages the elevator resource table 1010 . The table management unit 1040 manages the OID and RID in the elevator resource table 1010, and maps information such as information, URL information, and reservation identifier address of an external device connected to the OID and RID to the OID and RID to manage can

The table management unit 1040 virtualizes a device installed outside of the elevator 100 to create a virtual sensor, allocates OID and RID and reservation identifier addresses in response to the virtual sensor, and information allocated to the elevator resource table 1010 save the

11 is a view showing an elevator control apparatus according to another embodiment of the present invention.

Referring to FIG. 11 , the elevator control device 1100 may represent a computing device in which the above-described method of interworking between elevator internal data and elevator external data for elevator control is implemented. In particular, the elevator control device 1100 may represent a computing device in which an interworking method of elevator internal data and elevator external data is implemented.

The elevator control device 1100 may include at least one of a processor 1110 , a memory 1120 , an input interface device 1130 , an output interface device 1140 , and a storage device 1150 . Each of the components may be connected by a common bus 1160 to communicate with each other. In addition, each of the components may be connected through an individual interface or a separate bus with the processor 1110 as the center instead of the common bus 1160 .

The processor 1110 may be implemented in various types such as an application processor (AP), a central processing unit (CPU), a graphic processing unit (GPU), and the like, and executes a command stored in the memory 1120 or the storage device 1150 . It may be any semiconductor device that does The processor 1110 may execute a program command stored in at least one of the memory 1120 and the storage device 1150 . The processor 1110 may be configured to implement the method of interworking between elevator internal data and elevator external data described above with reference to FIGS. 1 to 10 . For example, the processor 1110 stores program instructions for implementing at least some functions of the data processing unit 1020 and the table management unit 1040 described with reference to FIG. 10 in the memory 1120, and based on FIGS. 1 to 10 , It can be controlled so that the described operation is performed.

The memory 1120 and the storage device 1150 may include various types of volatile or non-volatile storage media. For example, the memory 1120 may include a read-only memory (ROM) 1121 and a random access memory (RAM) 1122 . In an embodiment of the present invention, the memory 1120 may be located inside or outside the processor 1110 , and the memory 1120 may be connected to the processor 1110 through various known means.

The input interface device 1130 is configured to provide data to the processor 1110 .

The output interface device 1140 is configured to output data from the processor 1110 .

In addition, at least a part of the method of interworking the elevator internal data and the elevator external data for elevator control according to an embodiment of the present invention may be implemented as a program or software executed in a computing device, and the program or software is stored in a computer-readable medium. can be saved.

In addition, at least a part of the method of interworking the elevator internal data and the elevator external data for elevator control according to an embodiment of the present invention may be implemented as hardware capable of being electrically connected to a computing device.

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 by those skilled in the art using the basic concept of the present invention defined in the following claims are also provided. is within the scope of the right.

Claims (10)

In a method for controlling an elevator in an elevator control device in conjunction with a control panel or a monitoring panel of the elevator,
Supporting interworking with external devices installed outside the elevator;
processing external data from the external device and internal data of the elevator using the elevator resource table; and
monitoring the elevator using the external data and the internal data
includes,
When the elevator resource table is divided into a plurality of groups, the elevator control method includes a group identifier for identifying each group and a resource identifier for identifying individual devices located in each group. In claim 1,
The processing step is
mapping the external device to a virtual sensor; and
managing the resource identifier of the virtual sensor as another group among the plurality of groups
Elevator control method comprising a. In claim 2,
The managing step includes allocating the resource identifier of the virtual sensor by utilizing the most significant bit value of the resource identifier of the external device. In claim 2,
The processing step is
receiving an external data request inside the elevator; and
collecting the external data through interworking with the external device according to the external data request;
further comprising,
The external data request is an elevator control method including the resource identifier of the device to be requested. In claim 2,
The processing step is
receiving a data request from outside the elevator; and
When the device corresponding to the data request is not installed in the elevator, collecting data corresponding to the data request through interworking with the external device and transmitting the data to the outside of the elevator
further comprising,
The data request is an elevator control method including a resource identifier of the device to be requested. In claim 1,
The supporting step includes using an Internet of Things (IoT) communication protocol and data model for communication with the external device. In the elevator control device for controlling the elevator,
A transceiver that supports interlocking with the control panel or monitoring panel of the elevator and interworking with external devices installed outside the elevator;
When dividing the elevator into a plurality of groups, an elevator resource table including a group identifier for identifying each group and a resource identifier for identifying individual devices located in each group, and
A data processing unit that processes external data from the external device and internal data of the elevator using the elevator resource table, and monitors the elevator using the external data and the external data
Elevator control device comprising a. In claim 7,
A table management unit that maps the external device to the virtual sensor of the elevator and manages the resource identifier of the virtual sensor as another group among the plurality of groups
Elevator control device further comprising a. In claim 7,
The transceiver unit supports an Internet of Things (IoT) communication protocol and data model for interworking with the external device, and supports a communication protocol and data model for interworking with the elevator. In claim 7,
The data processing unit is an elevator control apparatus for collecting data from a device corresponding to the resource identifier included in the data request.

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