Elevator control system and elevator control method

Abstract

To enable communication to be appropriately carried out with a small communication amount between an elevator control device and a server when the server collects operation state data of an elevator.SOLUTION: Operation state data of an elevator is collected or generated by a control device, and the acquired operation state data is transmitted from the control device 100 to a server 200 to be stored, and applied to a system for analyzing the elevator at the server 200. The control device 100 of the elevator that communicates with the server 200 is provided with a data storage part 115 for storing the operation state data of the elevator, a difference extraction part 114 for extracting a difference between operation state data newly stored in the data storage part 115 and last operation state data stored in the data storage part 115, and a communication part 110 for transmitting the difference data extracted by the difference extraction part 114 to the server.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to an elevator control system and an elevator control method.

Background Art

[0002] In elevators such as elevators, technologies have been developed that enable the control device of the elevator installed in a building to communicate with a server via a network, and the server collects data on the operating status of the elevator.

[0003] For example, Patent Document 1 describes a technique for determining signs of the occurrence of abnormalities in an elevator based on information collected by a data acquisition system as a remote monitoring system for data on the elevator.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] By the way, when a center such as a server collects data on the operating status of an elevator, every time the elevator operates, detailed data is transmitted to the server side. In this case, the amount of data becomes enormous, and a problem occurs in that the communication load on the network connected to the server increases. In particular, since the server comprehensively manages a large number of elevators, the amount of data becomes extremely large when viewed across the entire network connected to the server.

[0006] Here, for example, the technology described in Patent Document 1 classifies elevators with a large number of abnormal occurrences and elevators with a small number of abnormal occurrences when acquiring operation data in a remote monitoring system, and sets the priority of data acquisition. However, if an elevator is classified as one with a large number of abnormal occurrences, the server will frequently acquire data for this elevator. Therefore, there is a problem that the load on the network connecting the elevator control device and the server increases. Conversely, in the case of an elevator classified as having a low priority for data acquisition, data acquisition at the server is performed at a low frequency, and there may be a delay in noticing an abnormality occurring in the elevator with a low priority.

[0007] In view of such a point, an object of the present invention is to provide an elevator control system and an elevator control method capable of appropriately performing communication between an elevator control device and a server with a small communication volume.

Means for Solving the Problems

[0008] To solve the above problems, for example, the configuration described in the claims is adopted. This application includes a plurality of means for solving the above problems. For example, as an elevator control system, the control device collects or generates operation status data of the elevator, and the obtained operation status data is transmitted by the control device to the server for storage, and the server analyzes the elevator. The control device includes a data storage unit for storing operation status data of the elevator, a difference extraction unit for extracting the difference between the operation status data newly stored in the data storage unit and the previous operation status data stored in the data storage unit, and a communication unit for transmitting the difference data extracted by the difference extraction unit to the server.

Effects of the Invention

[0009] According to the present invention, since difference data from the previous time is transmitted to the server as operation status data, the amount of data transmitted to the server can be reduced, and the server can appropriately collect and manage the data of each elevator. Problems, configurations, and effects other than those described above will be clarified by the following description of the embodiments.

Brief Description of the Drawings

[0010]

Figure 1

Figure 2

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Embodiments for Carrying Out the Invention

[0011] Hereinafter, an example of an elevator control system and an elevator control method according to an exemplary embodiment of the present invention (hereinafter referred to as "this example") will be described with reference to the accompanying drawings.

[0012] [Example of Elevator Configuration] First, referring to FIG. 1, the configuration of an elevator as an example of an elevator controlled by the elevator control system of this example will be described. The elevator shown in FIG. 1 is a rope-type elevator having a counterweight. That is, in the rope-type elevator shown in FIG. 1, a car 11 and a counterweight 12 are connected by a main rope 13. The main rope 13 is wound around a hoisting machine 14, and the car 11 travels (ascends and descends) by the drive of the hoisting machine 14.

[0013] Inside the car 11, a car destination floor registration button 11a is installed. At the landings 15a, 15b, 15c on each floor where the car 11 stops, landing call buttons 16a, 16b, 16c are installed. The operation data of these car destination floor registration buttons 11a and landing call buttons 16a, 16b, 16c by the users is transmitted to the control device 100. The control device 100 controls the running of the car 11 according to the operation status of each button 11a, 16a, 16b, 16c. In the example of FIG. 1, the control device 100 is shown installed in the machine room above the hoistway, but the control device 100 may be installed in other places such as inside the hoistway.

[0014] Also, sensors for detecting the status of the elevator are installed in the car 11 of the elevator shown in FIG. 1, the landings 15a, 15b, 15c on each floor, and each part inside the hoistway, and the control device 100 monitors the detection data of the sensors. For example, the control device 100 monitors the opening and closing status of the doors when the car 11 stops at each floor, the displacement amount of the floor surface of the car 11 when stopped, the operating status of the hoisting machine 14, etc. Furthermore, the control device 100 monitors the running state of the car 11. The control device 100 collects the detection data of these sensors and the data of the running state as operation status data.

[0015] Also, the control device 100 monitors whether there is an abnormality in the elevator based on the operation status data. Alternatively, the control device 100 monitors the occurrence of an abnormality due to the operation of the emergency button by the passengers on the operation panel inside the car 11. When the control device 100 detects these abnormalities, the control device 100 performs a process of reporting the abnormality to the server 200 and the operator terminal 300 described later in FIG. 2.

[0016] [Example of Elevator Control System] FIG. 2 shows a configuration example of the elevator control system of this example. The elevator control system in this example includes a control device 100 shown in FIG. 1, a server 200, a contractor terminal 300, and a communication center 400. The control device 100, the server 200, the contractor terminal 300, and the communication center 400 are communicably connected to each other via a predetermined network. The server 200 is a so-called cloud server and is a device for storing and processing data.

[0017] The contractor terminal 300 is installed, for example, in a control center that monitors elevators. Alternatively, the contractor terminal 300 may be a terminal installed at a business office that undertakes the maintenance of each elevator, or a terminal installed in a monitoring section of a building where an elevator is installed. The communication center 400 is a relay server used when executing communication between the control device 100, the server 200, and the contractor terminal 300.

[0018] The control device 100, the server 200, the contractor terminal 300, and the communication center 400 are each configured by implementing a program that functions as each device on a computer, which is an information processing device. For example, as shown in FIG. 2, the server 200 includes a CPU (Central Processing Unit) 200a, a memory 200b, an interface 200c, etc., each connected to a bus.

[0019] The CPU 200a is an arithmetic processing unit that reads and executes the program code of software that realizes the functions performed by the server 200 from the memory 200b. By the CPU 200a reading the program code from the memory 200b and executing arithmetic processing in the work area of the memory 200b, various processing functional units are configured in the memory 200b.

[0020] Memory 200b is a storage medium such as a hard disk drive (HDD), a solid state drive (SSD), or a memory card, in addition to semiconductor memories such as read only memory (ROM) and random access memory (RAM). Software that realizes the functions of server 200 and data obtained by executing the program are stored in memory 200b. Interface 200c performs communication processing with other devices via a network.

[0021] Although not shown in the figure, control device 100, business operator terminal 300, and communication center 400 are also configured by computers including a CPU and a memory. However, configuring these devices as computers equipped with a CPU is just an example. For example, some or all of the functions performed by control device 100 or server 200 may be realized by hardware such as a field programmable gate array (FPGA) or an application specific integrated circuit (ASIC).

[0022] The network connecting control device 100, server 200, business operator terminal 300, and communication center 400 shown in FIG. 2 may be either a wired connected network or a wireless connected network. Also, the network may use either a public line such as a telephone line or a dedicated communication line.

[0023] Next, the configuration will be described from the perspective of the functions executed by each device. Control device 100 includes a communication unit 110, a transmission unit 111, a determination unit 112, a measurement unit 113, a difference extraction unit 114, a data storage unit 115, and a related device extraction unit 116. Communication unit 110 communicates with server 200 and business operator terminal 300 via communication center 400 and performs data transmission and reception. When the reporting unit 111 detects an abnormality in each part of the elevator or a sign of such an abnormality, etc., it executes reporting and communication processing. The reporting process by the reporting unit 111 is performed, for example, on the business operator terminal 300.

[0024] The determination unit 112 performs determination processing for detecting abnormalities and signs. Note that the determination unit 112 determines not only abnormalities and signs thereof, but also that the operating status of the elevator is normal. The measurement unit 113 executes measurement processing of operating status data such as data of sensors installed in the elevator. The determination value of the determination unit 112 and the content measured by the measurement unit 113 are set according to an instruction from a setting unit 311 (described later) of the business operator terminal 300. The set value set by the setting unit 311 is stored in the determination unit 112 and the measurement unit 113.

[0025] The data storage unit 115 performs data storage processing for storing operating status data. The difference extraction unit 114 performs difference extraction processing to obtain difference data between the previously stored operating status data and the currently acquired operating status data for the operating status data stored by the data storage unit 115. Here, the meanings of "previous time" and "current time" mean the timing of transmitting the operating status data to the server 200 at regular intervals (for example, every day, every week, every month, etc.). Also, the data storage unit 115 only needs to store at least the previous operating status data. Further, in the difference extraction unit 114, the difference between the previous data and the current data may be specifically calculated to obtain difference data, or it may be difference data allowing a certain degree of error. For example, when the data of a specific sensor in the previous time is all within the normal range and the data of the same sensor in the current time is also all within the normal range, the difference extraction unit 114 may use data with no change, that is, set the difference data to "0" as the difference data.

[0026] When the determination unit 112 determines an abnormality or sign, the related device extraction unit 116 performs a related device extraction process to extract devices of the elevator related to the abnormality or sign. The content of the related devices extracted by the related device extraction unit 116 is also set according to an instruction from the setting unit 311 of the business operator terminal 300, as will be described later.

[0027] The server 200 includes a communication unit 210, a reporting unit 211, a determination unit 212, a differential combining unit 213, a data storage unit 214, and a data creation unit 215. The communication unit 210 communicates with the control device 100 and the business operator terminal 300 via the communication center 400 to transmit and receive data. When an abnormality is found in the elevator operation status data created by the data creation unit 215, the reporting unit 211 performs a reporting process to report to the business operator terminal 300. The determination unit 212 determines whether there is an abnormality in the data stored in the data storage unit 214 or the data created by the data creation unit 215.

[0028] The differential combining unit 213 performs a differential combining process of combining the differential data transmitted from the control device 100 and the data stored in the data storage unit 214 and returning it to the operation status data that is the source of the differential data. In the differential combining unit 213, a process of returning to data with all items of the operation status data is performed.

[0029] The data storage unit 214 performs a data storage process of storing the operation status data obtained using the differential data in the differential combining unit 213. The data creation unit 215 creates data for comparative study for each elevator model, each circuit board, etc. based on the data stored in the data storage unit 214.

[0030] The business operator terminal 300 includes a communication unit 310, a setting unit 311, a data confirmation unit 312, and a reporting confirmation unit 313. The communication unit 310 communicates with the control device 100 and the server 200 via the communication center 400 to transmit and receive data. The setting unit 311 sets determination values and the like for the control device 100, the server 200, and the like. The data confirmation unit 312 confirms the current and past operating states and measured value data of the elevator. The reporting confirmation unit 313 performs a process of confirming the reporting history and the like of the elevator. The confirmation by the data confirmation unit 312 and the reporting confirmation unit 313 is performed, for example, by a display unit (not shown) provided in the business operator terminal 300.

[0031] [Flow of the collection process of elevator operation status data] FIG. 3 is a flowchart showing the flow of the collection process of the operation status data performed in the elevator control system of this example. In FIG. 3, the collection process of initial data and the collection process of normal data are shown. That is, in the collection process of the operation data of the elevator, in order to compare and consider the data, it is necessary to measure the initial startup data and normal data of the elevator and store them in the server 200.

[0032] Therefore, when measuring the data at the startup of the elevator and normal data, the control device 100 checks whether data is stored in the data storage unit 214 of the server 200. When checking, if there is no data in the data storage unit 214 of the server 200, the current data is the data at the first startup. Also, if there is data in the data storage unit 214, the current data is normal data such as data collection.

[0033] Here, when checking the data by the business operator terminal 300 or the like, if it is checked every time whether data is stored in the data storage unit 214 of the server 200, it may cause a burden on the communication volume and the like. However, if there is no problem with the communication capacity and the like, there is no problem for the business operator terminal 300 or the like to check every time whether data is stored in the data storage unit 214 of the server 200.

[0034] Hereinafter, explaining the process shown in the flowchart of FIG. 3, first, the control device 100 checks the data in the data storage unit 115 and checks whether the current data is not startup data (step S11). If it was startup data in step S11 (NO in step S11), the control device 100 collects the measured data as it is and stores it in the data storage unit 115, and transmits the stored data to the server 200 via the communication unit 110 (step S17).

[0035] And if it was not startup data in step S11 (YES in step S11), the control device 100 compares the previous operation status data stored in the data storage unit 115 with the current operation status data, and checks whether there are any differences (step S12). In step S12, if there are no differences between the previous operation status data and the current operation status data (NO in step S12), the control device 100 transmits only the data of the collected date (date and time, etc.) to the server 200 (step S15). If the date is different from the previous collection, the date or date and time may be transmitted, and if it is the same date, only the time may be transmitted. At this time, the data storage unit 115 executes the storage process of the operation status data. Also, the data storage unit 115 updates the collection date of the stored operation status data.

[0036] And in step S12, if there are differences between the previous operation status data and the current operation status data (YES in step S12), the difference extraction unit 114 of the control device 100 extracts the difference between the previous and current operation status data (step S13). Then, the communication unit 110 transmits the difference data extracted by the difference extraction unit 114 to the server 200 (step S14).

[0037] When the server 200 receives the difference data, the difference combination unit 213 of the server 200 combines the received difference data with the data stored in the data storage unit 214 to generate data in a state where all the data is complete (step S16). Also, when only the date data is transmitted in step S15, in step S16, the difference combination unit 213 also processes the data stored in the data storage unit 214 as the current data. Then, after generating data from differences or the like in step S16, or when collecting data in step S17, the data storage unit 214 of the server 200 stores the generated data (step S18).

[0038] In the process shown in the flowchart of FIG. 3, the control device 100 collects the elevator operation status data from the server 200. Thereby, the control device 100 collects data according to a determined schedule such as once a month. Then, the control device 100 extracts the difference of the measured data and performs a process of transmitting only the difference data to the server 200.

[0039] Therefore, the control device 100 can reduce the communication volume as compared with the case of transmitting all data from the control device 100 to the server 200. In an actual configuration, since the server 200 communicates with the control devices 100 of a large number of elevators, the communication volume on the network can be significantly reduced. Further, by storing the data in the server 200, it becomes possible to utilize the stored data for prognosis diagnosis, defect confirmation, etc. at the operator terminal 300.

[0040] Also, when the control device 100 is first started up after installing the elevator in the building, the control device 100 stores the measured data as initial data in the data storage unit 115. Then, the control device 100 also transmits the same data as it is to the server 200 and stores it in the data storage unit 214 of the server 200. For this reason, according to the system of this example, the control device 100 can appropriately store the initial data even when transmitting the difference data to the server 200.

[0041] [Flow of operation status data collection process at the time of abnormality detection] Next, with reference to FIG. 4, the flow of the operation status data collection process at the time of abnormality detection performed in the elevator control system of this example will be described. When an abnormality occurs in the elevator, the server 200 collects the abnormal data, so that the on-site status and operation status of the elevator at the time of the abnormality can be grasped. As a result, the operator at the workplace can quickly discover problems when responding to abnormalities. In addition, the workplace can accurately convey the cause of the abnormality to the customer who owns the elevator.

[0042] FIG. 4 is a flowchart showing the flow of the collection process of the operation status data at the time of abnormality detection. First, when an abnormality occurs in the elevator, the reporting unit 111 of the control device 100 reports the elevator abnormality (step S21). The abnormality reporting in the reporting unit 111 is executed based on the determination of the determination unit 112 of the control device 100. That is, the reporting unit 111 of the control device 100 performs abnormality reporting when the determination value of the determination unit 112 exceeds the specified value or when the determination unit 112 determines that each part of the elevator is not operating in a normal state. This abnormality report is confirmed by the report confirmation unit 313 of the business operator terminal 300, and the operator at the workplace is notified to quickly restore the abnormality to a normal state.

[0043] After the reporting unit 111 of the control device 100 performs abnormality reporting, the control device 100 collects data and collects the operation status and the like of the elevator in which the abnormality has occurred (step S22). Next, the control device 100 compares the previous operation status data stored in the data storage unit 115 with the current operation status data to check whether there is a difference (step S23). If there is no difference between the previous operation status data and the current operation status data in step S23 (NO in step S23), the control device 100 extracts only the data of the collected date and transmits it to the server 200 (step S25).

[0044] If there is a difference compared with the data collected last time in step S23 (YES in step S23), the difference extraction unit 114 of the control device 100 extracts the difference between the previous data and the current abnormal data (step S24). Note that when making the determination in step S23, since it is basically a situation where an abnormality has occurred, there is a high possibility of a difference between the data collected last time and the current data. Therefore, the control device 100 may directly proceed to the process of step S24 after the process of step S22 and omit the difference determination process in step S23. However, by making the determination in step S23, it is also possible to cope with the abnormal reporting in a state where there is no abnormality in the sensor data or the like.

[0045] After the data extraction in step S24 or step S25, the related device extraction unit 116 of the control device 100 checks whether there is a device related to the detected abnormality (step S26). Note that the related device extraction unit 116 defines the related devices to be extracted for each abnormality so as to facilitate the in-depth investigation of the cause of the abnormality and the like. Thereby, the control device 100 only needs to transmit the data of the device corresponding to the cause of the abnormality, which can lead to a reduction in the data communication volume.

[0046] In step S26, if there is no device related to the detected abnormality (NO in step S26), the communication unit 110 of the control device 100 transmits only the differential data from the previous collection to the server 200 (step S29). Also, in step S26, if there is a device related to the detected abnormality (YES in step S26), the related device extraction unit 116 extracts the data of the related device (step S27). Then, the communication unit 110 transmits the differential data from the previous collection and the data of the related device to the server 200 (step S28).

[0047] In step S28 or step S29, when the extracted data difference part and the data of the related device are transmitted to the server 200, the differential combination unit 213 of the server 200 generates the data before obtaining the differential data based on the received differential data and the previous data stored in the data storage unit 214 (step S30). Then, the data of the device related to the data obtained by the differential coupling unit 213 is stored in the data storage unit 214 of the server 200 (step S31). At this time, it is stored in the data storage unit 214 as data at the time of abnormality notification. And the server 200 may transmit to the business operator terminal 300 that the data at the time of abnormality notification has been stored.

[0048] As a result, the business operator terminal 300 can check the abnormal data of the elevator and the devices related thereto, so that the business operator can promptly respond to the recovery of the elevator abnormality. Therefore, the business operator can improve the convenience of the users by reducing the elevator stop time and the like due to the occurrence of the abnormality.

[0049] In addition, since the business operator terminal 300 can compare abnormal data with normal data, the business operator can also utilize and compare the abnormal data when an abnormality occurs at another site, and can easily estimate the cause of the abnormality. Also, at the time of abnormality, the control device 100 transmits the data of the related devices as compared with the normal time, but since only the related devices are extracted and transmitted instead of all the devices, a significant reduction in communication volume can be achieved.

[0050] [Flow of collection process of operation status data at the time of sign detection] Next, with reference to FIG. 5, the flow of the collection process of the operation status data at the time of sign detection of abnormality performed by the elevator control system of this example will be described. When a sign of failure occurs in the elevator, by collecting the sign data in the server 200, the control device 100 can grasp the state of the elevator at the time of sign occurrence in the same manner as at the time of abnormality occurrence. Therefore, the operator at the workplace can reduce the time for dealing with the abnormality. Also, the control device 100 can make a proposal such as replacement in advance before a failure occurs regarding the part where an abnormality may occur to the customer who owns the elevator.

[0051] FIG. 5 is a flowchart showing the collection process of the operation status data at the time of sign detection. First, when the determination unit 112 of the control device 100 detects a sign of a failure in the elevator, it collects data (step S41). The determination unit 112 performs this sign detection in the same way as the abnormality detection, and detects a sign when it determines that the determination value of the sign has been exceeded.

[0052] Next, the determination unit 112 compares the collected abnormality data with the data stored in the data storage unit 115 to check whether there are any differences (step S42). If there are no differences compared with the data collected in the previous collection in step S42 (NO in step S42), the control device 100 extracts only the data of the collected date (step S44). Also, if there are differences compared with the data collected in the previous collection in step S42 (YES in step S42), the difference extraction unit 114 extracts the difference between the previous data and the current sign data (step S43).

[0053] Next, the related device extraction unit 116 of the control device 100 checks whether there is a device related to the detected sign (step S45). Note that the related device extraction unit 116 defines the related devices to be extracted for each sign so that it is easy to dig deeper into the cause of the sign occurrence and the like. If there is no device related to the sign detected in step S45 (NO in step S45), the communication unit 110 transmits the data obtained by extracting the difference from the previous collection to the server 200 (step S48).

[0054] If there is a device related to the sign detected in step S45 (YES in step S45), the related device extraction unit 116 extracts the data of the related device (step S46). Then, the communication unit 110 transmits the difference data collected previously and the data of the related device to the server 200 (step S47).

[0055] When the data difference part extracted in step S47 or step S48 and the data of the related device are sent to the server 200, the difference combining unit 213 of the server 200 combines the received difference data with the previous collected data stored in the data storage unit 214 to generate the original data (step S49). Then, the data storage unit 214 of the server 200 stores the generated data (step S50).

[0056] Furthermore, the control device 100 notifies and communicates with the operator terminal 300 about the detection of a sign, etc., to convey that a sign has occurred (step S51). Here, a sign, unlike the detection of an abnormality, is a situation where the elevator is not currently malfunctioning and has not stopped, etc. However, since there is a possibility that the elevator may malfunction in the future, a sign is detected for the purpose of prompting the replacement of parts, etc. For this reason, the control device 100 does not issue a sign in the form of an alarm, but only contacts the operator terminal 300. Note that the server 200 may issue the detection of a sign as an alarm, but it is preferable to perform the detection of a sign by means of notification, etc., so as to be able to prioritize dealing with abnormalities.

[0057] As a result, at the operator terminal 300, it is possible to check the sign data and the related devices, and the operator can perform a replacement operation in advance before a failure. In addition, the operator can also convey to the customer that a sign has occurred and propose a replacement, which can also lead to a reduction in the risk of the elevator stopping. Also, although the control device 100 sends the related devices to the server 200 in excess compared to normal times even when there is a sign, only the related devices are extracted and sent instead of all devices, so the communication volume can be reduced. Note that when a sign is detected, since the urgency is lower compared to when an abnormality is detected, the control device 100 can also send the data at a time when the communication is relatively stable, such as at night, so as not to interfere with the normal communication with the server 200.

[0058] [Flow of Abnormality Occurrence Confirmation Process for Each Model] FIG. 6 is a flowchart showing the flow of the abnormality occurrence confirmation process for each model in the server 200 performed by the elevator control system of this example. As described with reference to FIGS. 3 to 5, the server 200 collects and stores the operation status data, the data at the time of abnormality detection, and the data at the time of sign detection for the elevator. In this way, the server 200 can grasp the daily transition of the occurrence of abnormalities and signs by summarizing the data stored in the data storage unit 214 for each model of the elevator. Further, the server 200 can thereby grasp in advance the occurrence of unexpected system or board failures and other abnormalities and malfunctions.

[0059] Regarding the process shown in FIG. 6, first, the determination unit 212 of the server 200 compares the transition of abnormality reports for each model with respect to the elevator data stored in the data storage unit 214. The determination unit 212 determines whether or not the abnormality reports are increasing daily in this comparison (step S61). If the reports are not increasing in step S61 (NO in step S61), the server 200 ends the abnormality occurrence confirmation process because there is no problem.

[0060] On the other hand, if the reports are increasing in step S61 (YES in step S61), the determination unit 212 confirms whether or not the increasing reports are abnormality reports (step S62). The processes of step S61 and step S62 are performed to exclude reports other than abnormality reports such as work reports performed by the operator of the business office for inspection and direct reports performed by trapped users. Thereby, the business operator can accurately grasp the transition in which an abnormality has occurred. If it is also desired to grasp work reports, etc., the determination unit 212 does not have to exclude reports other than abnormality reports. If the increasing reports in step S62 are not abnormality reports (NO in step S62), the abnormality occurrence confirmation process ends.

[0061] And when the alarm transmission that has increased in step S62 is an abnormal alarm transmission (YES in step S62), the determination unit 212 extracts the transition of the abnormal alarm transmission for each elevator model (step S63). Then, the data creation unit 215 automatically creates, in a graph or the like, a comparison of the extracted transition of the abnormal alarm transmission with that of other models and past transitions (step S64). The created data such as the graph is communicated to the management department or the like via the communication center 400 (step S65). The management department or the like that has received the data such as the graph checks the corresponding data and executes a process of investigating the cause of the increase in the alarm transmission and the like.

[0062] In the process shown in FIG. 6, the abnormal alarm transmissions and the like are compared for each model. However, for example, the comparison may be made for each board mounted on each part of the elevator. Thereby, when the same boards are used among different models, defects in the boards can be discovered. Also, since it is possible to consider the replacement cycle of each component based on the transition of the abnormal alarm transmission, it also leads to reducing the risk of non-stop and the like by proposing replacement to the customer at the accurate replacement cycle.

[0063] As described above, it is possible to grasp the daily and model-by-model transition of the abnormal alarm transmission, and it is possible to grasp abnormalities and defects in software for elevator operation and monitoring, abnormalities in the communication center, defects in the boards mounted on the control device, etc. in advance. Therefore, by detecting defects early, it is possible to contribute to reducing the non-stop time of the elevator. For example, when the elevator control system of this example creates software for monitoring the elevator and introduces it into the local control device, by grasping the transition of the abnormal alarm transmission data for each model, it becomes possible to detect defects in the corresponding software early. Therefore, according to the elevator control system of this example, the elevator manufacturer can perform software correction and the like early, quickly solve the unintended influence, and prevent the risk of not being discovered in the long term and not reducing the convenience of the users.

[0064] As described above, according to the elevator control system of this example, when the server 200 collects elevator operation status data and the like, the data transmission to the server 200 can be minimized, and the communication volume can be reduced. Further, according to the elevator control system of this example, it becomes possible to solve software problems and the like at an early stage by detecting abnormalities for each model and each board at an early stage. Furthermore, by grasping the appropriate replacement cycle of parts from the operation data and proposing replacement to the customer at an appropriate timing, it also leads to not degrading the convenience of users and the like.

[0065] [Modification Example] Note that the embodiments described so far have been described in detail for easy understanding of the present invention, and are not necessarily limited to those having all the configurations described. Also, in the configurations shown in FIGS. 1 and 2, an elevator control system is used, but the elevator control system of the present invention may be applied to the control of other elevators such as passenger conveyors (so-called escalators).

[0066] Also, in the configuration diagram shown in FIG. 2, only the control lines and information lines considered necessary for explanation are shown, and not all the control lines and information lines are necessarily shown on the product. In reality, it may be considered that almost all the components are interconnected. Also, the flow of the processes shown in the flowcharts shown in FIGS. 3, 4, 5, and 6 is also an example, and if the processing results are the same, the order of some processes may be changed, or a plurality of processes may be executed simultaneously. Furthermore, the control device 100, the server 200, and the operator terminal 300 may, for example, implement a program for executing the processes described in each embodiment on an existing computer to perform similar control processes. In this case, the program to be implemented on the computer may be prepared in the storage or memory in the control device 100, or may be placed on a recording medium such as an external memory, an IC card, an SD card, or an optical disk and transferred.

Explanation of Reference Numerals

[0067] 11... car, 11a... destination floor registration button inside the car, 12... counterweight, 13... main rope, 14... hoisting machine, 15a, 15b, 15c... landing, 16a, 16b, 16c... landing call button, 100... control device, 110... communication unit, 111... transmitting unit, 112... determination unit, 113... measurement unit, 114... difference extraction unit, 115... data storage unit, 116... related device extraction unit, 200... server, 200a... CPU, 200b... memory, 200c... interface, 210... communication unit, 211... transmitting unit, 212... determination unit, 213... difference combination unit, 214... data storage unit, 215... data creation unit, 300... operator terminal, 310... communication unit, 311... setting unit, 312... data confirmation unit, 313... transmission confirmation unit, 400... communication center

Claims

1. An elevator control system, in which a control device collects or generates operation status data of an elevator, and transmits the obtained operation status data to a server for storage, and the server analyzes the elevator, wherein the control device includes: a data storage unit for storing the operation status data of the elevator; a difference extraction unit for extracting a difference between the operation status data newly stored in the data storage unit and the previous operation status data stored in the data storage unit; and a communication unit for transmitting the difference data extracted by the difference extraction unit to the server. Elevator control system.

2. When there is no difference between the operation status data newly stored in the data storage unit and the previous operation status data stored in the data storage unit, the communication unit transmits only the data of the date or time when the operation status data was collected to the server. The elevator control system according to claim 1.

3. Further, the control device includes: a determination unit for determining the occurrence of an abnormality in the elevator; and a related device data extraction unit for extracting device data related to the determined abnormality when the determination unit determines the occurrence of an abnormality. The communication unit transmits the device data extracted by the related device data extraction unit to the server. The elevator control system according to claim 2.

4. The determination unit also determines the signs of an abnormality in the elevator, and when the determination unit determines the sign, the related device data extraction unit extracts device data related to the sign, and the communication unit transmits the extracted device data to the server. The elevator control system according to claim 3.

5. Furthermore, the determination unit determines the transition of the abnormal alarm for each predetermined period, and when the alarm at the time of abnormality is increasing, the communication unit transmits the data regarding the increasing alarm at the time of abnormality to the server. The elevator control system according to claim 3.

6. The server restores and stores the original data from the received difference data and the data collected last time. The elevator control system according to claim 1.

7. An elevator control method in which an operating status data of an elevator is collected or generated by a control device, the obtained operating status data is transmitted by the control device to a server and stored therein, and the server analyzes the elevator, comprising: In a device for controlling the elevator, a data storage process for storing the operating status data of the elevator, A difference extraction process for extracting a difference between the operating status data newly stored in the data storage process and the operating status data stored last time in the data storage process, A communication process for transmitting the difference data extracted by the difference extraction process to the server. Elevator control method.

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