JP2016037388A - Elevator remote monitoring device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To communicate monitor data whose communication capacity is large by high speed communication surely.SOLUTION: A remote monitoring device 4 for an elevator EL for communicating with a monitoring center 8 via a radio communication device 5 which performs communication by switching an LTE communication mode and a 3G communication mode, is configured to: confirm output of an LTE communication mode setting signal from the radio communication device 5 when the elevator EL is stopped; record an LTE communication mode detection number of the confirmed elevator EL at each stop floor; specify the stop floor which has the large LTE mode detection number for each recorded stop floor; when data transmission is performed to the monitoring center 8 periodically, creates a car call for travelling a car 2 of the elevator EL to the specified stop floor having the large detection number of the LTE mode detection number; and travel the car 2 to the stop floor having the large number of LTE mode detection number, for performing data communication.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an elevator remote monitoring device, and more particularly to an elevator remote monitoring device that has a wireless communication device and remotely monitors the elevator via a public wireless communication network.

  Recently, the remote monitoring system for elevators uses a communication device to communicate between the monitoring device and the monitoring center by wireless communication because the telephone line and telephone subscription right in the building are unnecessary or the basic charge is low. Is popular. Conventional communication devices generally use PHS (Personal Handy-phone System), and this communication device is installed in a call button box in an elevator hall.

  On the other hand, as this type of technology, for example, the one described in JP2013-103817A (Patent Document 1) is known. The purpose of this technology is to install the sensor properly in consideration of the radio wave conditions in the field, and to perform initialization and data collection after the installation reliably by radio. At least one maintenance in the elevator equipment A wireless sensor terminal that is installed in a target device (such as a car) and measures data necessary for failure diagnosis of the maintenance target device, and a wireless sensor terminal that is installed at any location in the elevator facility and measured by the wireless sensor terminal It consists of a data collection device that collects by communication, and the data collection device has a radio field strength measurement function that measures the radio field strength by wireless communication with the portable wireless terminal possessed by the maintenance staff, and the maintenance staff installs the wireless sensor terminal When transmitting, the radio field intensity measured by the radio field intensity measurement function is transmitted to the portable radio terminal as the radio field intensity at the installation location of the radio sensor terminal. Than is.

JP2013-103817A

  In the technique described in Patent Document 1 described above, a wireless sensor terminal is installed on a maintenance target device that is a moving object, for example, a car or a counterweight, and the moving object is moved to a place where the radio wave intensity is most obtained. The wireless sensor terminal is configured to collect data. However, this is intended for communication between a wireless sensor terminal that measures data necessary for failure diagnosis and the data collection device, and communication between the data collection device and the monitoring center is not considered.

  On the other hand, in recent elevators, an elevator without a machine room in which a hoisting machine, a control panel, etc. are arranged in a hoistway is widespread, and a communication device of a radio communication system (LTE / 3G) having a strong radio wave output is used as a communication device. In many cases, it is installed in an elevator control panel or the like located in the elevator hoistway due to problems such as the influence on the pacemaker of the person in the hall and the installation space. When the communication device is installed in the elevator control panel, the car is made of metal. Depending on the position of the stopped car, the communication device installation location may be covered with metal and the radio wave may be blocked. There is. For this reason, the radio field intensity is not stable, and switching between 3G (3rd Generation) and LTE (Long Term Evolution) communication frequently occurs, and a communication impossible state may occur. In addition, LTE communication is switched to 3G communication, and the communication speed is unintentionally reduced.

  On the other hand, the elevator monitoring device records various operation information data of the elevator such as the number of times the door is opened and closed and the number of activations, and further stores the recorded data. This accumulated data is transmitted to the monitoring center once a month, for example. However, since the data capacity is large, if the radio field intensity is not stable, the monitoring center requires a long time for data collection, and in the worst case, the data collection may fail.

  Therefore, the problem to be solved by the present invention is to ensure high-speed communication of elevator monitoring data having a large communication capacity.

  In order to solve the above-mentioned problem, the present invention measures the radio field intensity in the LTE communication mode and the 3G communication mode, switches to the communication mode with strong radio field intensity, performs communication, and switches to the LTE communication mode. A wireless monitoring device connected to a wireless communication device that outputs a setting signal and communicates with a monitoring center installed in a remote place in any one of the communication modes, and the wireless communication device when the elevator stops An LTE mode detection unit for confirming the output of the LTE communication mode setting signal from, an LTE mode detection number recording unit for recording the number of LTE communication mode detections at each floor of the elevator detected by the LTE mode detection unit, Stops with a large number of LTE mode detections for each stop floor recorded in the LTE mode detection frequency recording unit The LTE mode detection stop floor determination unit for specifying the data, and when performing periodic data transmission to the monitoring center, the LTE mode detection stop floor determination unit specified by the LTE mode detection stop floor determination unit, A call creation unit that creates a car call for running the elevator car, and data is obtained by running the car on the stop floor of the LTE mode with a large number of detections created by the call creation unit. It is characterized by performing communication. Note that problems, configurations, and effects other than those described above will be clarified by the following description of embodiments.

  According to the present invention, it is possible to perform data communication by running a car in advance on the floor where the radio wave intensity of high-speed communication is most stable. As a result, it is possible to reliably perform high-speed communication of elevator monitoring data having a large communication capacity.

It is a functional block diagram which shows the structure of the remote monitoring system containing the remote monitoring apparatus of the elevator which concerns on embodiment of this invention. It is a flowchart which shows the process sequence of the remote monitoring apparatus of the elevator shown in FIG.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a functional block diagram showing a configuration of a remote monitoring system including an elevator remote monitoring device according to an embodiment of the present invention.

  In FIG. 1, a remote monitoring system according to the present embodiment includes a control device 3 that controls the operation of a car 2, a remote monitoring device 4, a wireless communication device 5, a wireless base station 6, and a monitoring center that can communicate with the control device 3. 8 is basically composed.

  A car 2 on which an elevator user rides moves up and down in the hoistway 1 by the control device 3 controlling a drive device (not shown), and each stop floor 9-1 to 9-n (n is 2 or more). (Integer).

  The remote monitoring device 4 that monitors the elevator EL obtains the control information of the elevator EL from the control device 3 and connects to the abnormality report when the abnormality is detected, and also connects the operation information of the elevator EL at a predetermined cycle. The wireless communication device 5 wirelessly communicates with the wireless base station 6 and sends the wireless base station 6 to the monitoring center 8 via the communication network 7.

  The radio base station 6 can perform communication in the LTE communication mode for performing high-speed communication and the 3G communication mode for performing low-speed communication. For this reason, an LTE communication mode antenna 61 and a 3G communication mode antenna 62 are provided.

  The wireless communication device 5 includes an LTE communication unit 53, a 3G communication unit 54, and a communication mode switching unit 55. The LTE communication unit 53 is connected to the LTE communication mode antenna 51, and the 3G communication unit 54 is connected to the 3G communication mode antenna 52. The communication mode switching unit 55 has a function of measuring the radio field intensity in the LTE communication mode with the radio base station 6 and the radio field intensity in the 3G communication mode, and automatically switching to a communication mode having a high radio field intensity.

  Therefore, when the remote monitoring device 4 communicates with the monitoring center 8, communication is performed in the communication mode set in the communication mode switching unit 55. Further, the communication mode switching unit 55 outputs the set communication mode to the LTE mode detection unit 41 described later.

  The remote monitoring device 4 includes an LTE mode detection unit 41, an LTE mode detection frequency recording unit 42, an LTE mode detection stop floor determination unit 43, a car call creation unit 44, a communication unit 45, an operation information collection unit 46, and an operation information recording unit 47. It has.

  The LTE mode detection unit 41 checks the presence / absence of an LTE communication mode setting signal input from the communication mode switching unit 55 of the wireless communication device 5 whenever the car 2 stops at each stop floor 9-1 to 9-n. To do. Alternatively, the LTE communication mode setting signal output from the wireless communication device 5 is confirmed. If the LTE mode detection unit 41 detects the LTE communication mode setting signal, the LTE communication mode is set. Therefore, the LTE mode detection unit 41 counts up the LTE communication mode detection count and stops the LTE communication mode detection count. It records in the LTE mode detection frequency recording part 42 recorded every time.

  The driving information collection unit 46 analyzes the driving information obtained from the control device 3 and, when an abnormality is detected, reports the abnormality to the monitoring center 8 in the communication mode set by the communication mode setting unit 55 from the communication unit 45. To do. The operation information collection unit 46 operates such as the usage status of the elevator EL, for example, the number of stops for each stop floor 9-1 to 9-n or the number of times of opening and closing the door (not shown) for each stop floor 9-1 to 9-n. Information is recorded in the driving information recording unit 47.

  The driving information recording unit 47 transmits the recorded driving information to the monitoring center 8 at a predetermined cycle, for example, once a month. Since this driving information is data indicating the usage status, it is a large amount of data compared to the abnormality report. In order to transmit this large amount of data in a short time, the LTE communication mode for performing high-speed communication is selected. Therefore, the LTE mode detection stop floor determination unit 43 selects the floor having the largest number of LTE communication mode detections recorded in the LTE mode detection frequency recording unit 42. Then, the car call creation unit 44 moves to the floor with the highest number of LTE communication mode detections in order to run and stop the car 2 to the floor with the highest number of LTE communication mode detections selected by the LTE mode detection stop floor determination unit 43. Create a basket call. When the car 2 stops on the floor with the highest number of LTE communication mode detections, the driving information recording unit 47 transmits the driving information recorded in the monitoring center 8 from the communication unit 45.

  In the above description, the processing of the functional block shown in FIG. 1 is described, but the hardware is executed as processing of a CPU or ASIC (not shown) of the remote monitoring device 4 and the wireless communication device 5.

  FIG. 2 is a flowchart showing a processing procedure in the remote monitoring apparatus for an elevator according to the present embodiment.

  In the elevator EL remote monitoring device 4 according to the present embodiment, first, in step S1, the driving information collection unit 46 confirms whether the car 2 has stopped. If not stopped (step S1: NO), step S1 is repeated. That is, it waits until the car 2 stops.

  When the car 2 stops (procedure S1: YES), in step S2, the LTE mode detection unit 41 confirms whether the output signal from the communication mode switching unit 55 is an LTE communication mode setting signal. If it is not the LTE communication mode setting signal in this confirmation process (step S2: NO), the process proceeds to step S4. On the other hand, if it is the LTE communication mode setting signal (procedure S2: YES), in step S3, the LTE mode detection unit 41 counts up the LTE communication mode detection frequency of the floor that is currently stopped, and records the LTE communication mode detection frequency. The data is recorded in the unit 42 and the process proceeds to step S4.

  In step S <b> 4, the driving information recording unit 47 confirms whether or not it is a cycle for transmitting driving information to the monitoring center 8. If it is not the transmission cycle (step S4: NO), the process returns to step S1, and the subsequent processing is repeated. If it is the cycle to transmit (procedure S4: YES), in step S5, it is confirmed whether or not the elevator EL is not being used by the user. Normally, if the elevator user does not create a landing call or car call within a predetermined time, the state is confirmed and the unused state is determined. If there is a landing call or car call created by the elevator user within a predetermined time (step S5: NO), it is determined that the elevator EL is being used by the user, the process returns to step S1, and the subsequent processing repeat.

  When there is no landing call or car call created by the elevator user within a predetermined time (step S5: YES), in step S6, the LTE mode detection stop floor determination unit 43 is recorded in the LTE mode detection frequency recording unit 42. The number of LTE communication mode detections of each stop floor 9-1 to 9-n is confirmed, and the floor having the highest number of LTE communication mode detections is selected.

  Next, the process proceeds to step S7. In step S7, the car call creation unit 44 creates a car call of the floor with the highest number of LTE communication mode detections selected by the LTE mode detection stop floor determination unit 43. Then, in step S8, in accordance with the call created in step S7, it is checked whether the car 2 has traveled to the floor with the highest number of LTE communication mode detections and stopped. If the car 2 is not stopped on the floor with the highest number of LTE communication mode detections (step S8: NO), step S8 is repeated. That is, it waits until the car 2 stops at the floor where the LTE communication mode is detected the most.

  When the car 2 stops on the floor with the highest number of LTE communication mode detections (step S8: YES), in step S9, the driving information recording unit 47 transmits the driving information recorded in the monitoring center 8 from the communication unit 45. This process is terminated.

That is, in this embodiment,
1. The driving information collection unit 46 confirms whether the car 2 has stopped.
2. When the car 2 stops, the LTE mode detection unit 41 checks whether or not the output signal from the communication mode switching unit 55 is an LTE communication mode setting signal.
3. If it is an LTE communication mode setting signal, the LTE mode detection unit 41 counts up the number of LTE communication mode detections of the floor that is currently stopped and records it in the LTE communication mode detection number recording unit 42.
4). The driving information recording unit 47 confirms whether or not it is a cycle for transmitting driving information to the monitoring center 8.
5. If it is the period to transmit, it will be checked whether the elevator is not in use by the user.
6). When there is no landing call or car call created by the elevator user within a predetermined time, the LTE communication mode detection stop floor determination unit 43 selects the floor having the highest number of LTE communication mode detections.
7). The car call creation unit 44 creates a car call of the floor having the largest number of LTE communication mode detections selected by the LTE communication mode detection stop floor determination unit 43.
8). In response to the car call, it is checked whether the car 2 has traveled to the floor with the highest number of LTE communication mode detections and stopped.
9. When the car 2 stops on the floor with the highest number of LTE communication mode detections, the driving information recording unit 47 transmits the driving information recorded in the monitoring center 8 from the communication unit 45.
By executing the process, communication can be performed with high communication quality.

  Thus, when transmitting data communication with a large communication capacity such as operation information of the elevator EL, in other words, transmission of elevator monitoring data including operation information of the elevator EL with a large communication capacity, the radio wave intensity determination unit 27 has specified. After making a call on the stop floor of the car 2 where the radio field strength is most stable, the call is moved to the stop floor and communication is performed, so communication can be performed with high communication quality.

  Also. In the present embodiment, the example in which the wireless communication device 5 is installed in the hoistway 1 has been described. However, the wireless communication device 5 is installed on the upper part of the car 2 and connected to the remote monitoring device 4 to communicate with the monitoring center 8. It can also be made.

  As described above, according to the present embodiment, the following effects can be obtained. In the description of the effects in the following embodiment, each component in the present embodiment is indicated by parentheses in each component in the claims, or given a reference symbol, to clarify the correspondence between them.

  (1) The radio communication device 5 that measures the radio field intensity in the LTE communication mode and the 3G communication mode, switches to the communication mode with strong radio field intensity, performs communication, and outputs the LTE communication mode setting signal when the LTE communication mode is switched. Is connected to the monitoring center 8 installed in a remote place in any one of the communication modes, and the remote monitoring device 4 of the elevator sets the LTE communication mode from the wireless communication device 5 when the elevator stops LTE mode detection unit 41 for confirming signal output, and LTE mode detection frequency record for recording the number of LTE communication mode detections at each of the elevator floors 9-1, 2,... N detected by the LTE mode detection unit 41. And the stop floor with a large number of LTE mode detections for each stop floor recorded in the LTE mode detection frequency recording section 42 When the LTE mode detection stop floor determination unit 43 periodically transmits data to the monitoring center 8, the elevator mode detection stop floor determination unit 43 specified by the LTE mode detection stop floor determination unit 43 moves to the stop floor with a large number of detection times. A car creation unit 44 for creating a car call for running the car 2, and the car 2 is run on the stop floor with a large number of detection times of the LTE mode created by the call creation unit 44. Since communication is performed, data can be communicated by running the car 2 in advance on the floor where the radio wave intensity in the LTE communication mode, which is high-speed communication, is most stable. As a result, data having a large communication capacity such as elevator operation information can be reliably communicated to the monitoring center 8 at high speed.

  (2) The radio communication device 5 measures the radio field intensity in the LTE communication mode with the radio base station 6 and the radio field intensity in the 3G communication mode, and automatically switches to the communication mode with strong radio field intensity. Since the communication mode switching unit 55 outputs the LTE communication mode setting signal to the remote monitoring device 4 side when switching to the LTE communication mode, the LTE mode detection unit of the remote monitoring device 4 surely switches to the LTE communication mode. It is possible to detect switching.

  (3) Since the wireless communication device 5 connected to the remote monitoring device 4 for wireless communication with the wireless base station 6 is installed on the upper part of the car 2, it is easy to reach the floor where the radio wave intensity in the LTE communication mode is most stable. Thus, data communication can be reliably performed from the destination.

  Furthermore, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention, and all the technical matters included in the technical idea described in the claims are all included. The subject of the present invention. The above-described embodiments show preferred examples, but those skilled in the art can realize various alternatives, modifications, variations, and improvements from the contents disclosed in the present specification. These are included in the technical scope described in the appended claims.

2 Car 4 Remote monitoring device 41 LTE mode detection unit 42 LTE mode detection frequency recording unit 43 LTE mode detection stop floor determination unit 44 Car call creation unit 5 Wireless communication device 53 LTE communication unit 54 3G communication unit 55 Communication mode switching unit 6 Radio base station 8 Monitoring center EL Elevator

Claims (3)

A radio communication device that measures the radio field intensity in the LTE communication mode and the 3G communication mode, performs communication by switching to a communication mode with strong radio field intensity, and outputs an LTE communication mode setting signal when the LTE communication mode is switched is connected. , An elevator remote monitoring device that communicates with a monitoring center installed in a remote place in any one of the communication modes,
An LTE mode detector for confirming the output of the LTE communication mode setting signal from the wireless communication device when the elevator stops;
An LTE mode detection frequency recording unit that records the number of LTE communication mode detections at each floor of the elevator detected by the LTE mode detection unit;
An LTE mode detection stop floor determination unit that identifies a stop floor with a large number of LTE mode detections for each stop floor recorded in the LTE mode detection frequency recording unit;
When periodically transmitting data to the monitoring center, a car call is generated for running the elevator car to the stop floor with the high number of detection times specified by the LTE mode detection stop floor determination unit. A call creation department;
With
A remote monitoring device for an elevator, wherein data communication is performed by running a car on a stop floor with a high number of detection times of the LTE mode generated by the call generation unit. The elevator remote monitoring device according to claim 1,
The wireless communication device includes a communication mode switching unit that measures the radio wave intensity in the LTE communication mode and the 3G communication mode and automatically switches to a communication mode having a high radio wave intensity. An elevator remote monitoring device, wherein a communication mode switching unit outputs the LTE communication mode setting signal. The elevator remote monitoring device according to claim 1 or 2,
A remote monitoring device for an elevator, wherein a wireless communication device connected to the remote monitoring device for wireless communication with the wireless base station is installed in the upper part of the car.