JP2019102879A - Communication controller - Google Patents

Abstract

To provide a technology for making it possible to implement failure monitoring while inhibiting the upper limit of a communication data use amount stipulated in contents of a contract from being exceeded.SOLUTION: A communication controller for communicating with an elevator via a wide area communication network includes: a storage unit for storing level-classified information, information defined by performing level classification on respective communication via the wide area communication network for each communication type; and a communication frequency control unit that when the remaining amount of the communication via the wide area communication network in a predetermined period becomes equal to or lower than a first threshold, performs control on the basis of the level-classified information so that communication frequencies for one or more types of communication are lowered.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a technology for remotely monitoring and controlling an elevator via a wide area communication network and providing information to a user of the elevator.

  In the elevator monitoring system in recent years, not only the monitoring device issues a notification to the control center via the communication line when an abnormality occurs in the elevator, but also news information and weather information on the liquid crystal screen installed in the car It also has a function to display content.

  Conventionally, an analog telephone network which is a wired communication line and a PHS network which is a wireless communication line have been used as a wide area communication network, but in recent years, an IP (Internet Protocol) line has been used. In the IP circuit, the upper limit of the communication data usage between the center and the terminal is limited by the contract content with the telecommunications carrier (hereinafter referred to as a carrier). Therefore, if the problem occurs frequently, if the communication is performed repeatedly and the firmware of the monitoring device is updated, etc., the upper limit defined in the contract content will be exceeded, and the communication speed may be reduced or the additional cost may be increased. It may occur.

  Therefore, a technology for managing the communication charge of the remote monitoring system has been devised. For example, when the packet usage amount increases, another wireless device of the plurality of wireless devices relays information, and one of the plurality of wireless devices transmits the base station communication to transmit the abnormal information. A technology that can be transmitted has been devised (for example, Patent Document 1).

JP 2017-128399 A

  Although communication can be secured by the above-described technology, communication between wireless devices can not be performed in a situation where the distance between elevators is long, such as when there are not a plurality of elevators in the same building. In this case, communication may be forced under limited speed.

  An object of the present invention is to provide a technology capable of realizing failure monitoring without exceeding the upper limit of the communication data usage defined in the content of a contract.

  In order to solve the above problems, a typical communication control device of the present invention is a communication control device that communicates with an elevator via a wide area communication network, and each communication via the wide area communication network is A storage unit for storing level division information which is information defined by level division for each type, and a remaining amount of data communication through the wide area communication network within a predetermined period is equal to or less than a first threshold value; And a communication frequency control unit configured to control to lower the communication frequency for some types of communication based on the level division information.

Exceeding the communication data usage defined in the contract content can be reduced.
Problems, configurations, and effects other than those described above will be clarified by the description of the embodiments below.

FIG. 1 is a diagram showing an example of the overall configuration of a system according to an embodiment. It is a figure showing the example of hardware constitutions of the surveillance center device concerning an embodiment. It is a figure showing an example of composition of a system concerning an embodiment. It is a figure which shows the data structure example which divided into the level by communication data usage and a priority while showing the classification of communication data which concerns on embodiment. It is a flow chart which shows communication frequency change processing concerning a 1st embodiment. It is a flow chart which shows communication frequency change processing concerning a 2nd embodiment.

  Hereinafter, the communication control device of the embodiment will be described in detail with reference to the drawings.

First Embodiment
FIG. 1 is a diagram showing an entire configuration of a system of the embodiment. In FIG. 1, an elevator 100 (lift and lift) has a hoistway 1 and a car 6 on which a user of the elevator rides. The car 6 is provided with an in-car liquid crystal screen 3 for displaying contents and a call button 27 provided in the car 6 for making a call with the outside in an emergency. The elevator 100 also has a counterweight 9, a motor 10 installed at an arbitrary position, and a main rope 8 which is wound around the motor 10 and suspends the car 6 and the counterweight 9.

  The elevator 100 has a control board 2, and the control board 2 has an elevator control device 13 for controlling the operation of the elevator, and an elevator monitoring device 12 for monitoring abnormality of the elevator. The elevator monitoring device 12 is communicably connected to the monitoring center device 21 through the communication carrier 20, and periodically collects operation data of equipment of the elevator 100 and transmits it to the monitoring center device 21. The elevator monitoring device 12 also issues alert information to the monitoring center device 21 when a failure of the device is detected by the elevator 100.

  In FIG. 1, a landing door 4 is installed at each of the landings from the first floor to the fourth floor, and by rotating the motor 10 forward and reverse, the car 6 is driven to move up and down. The car 6 stops at the landing 5 indicating the stop position of each floor according to the destination floor, and the car door 7 and the landing door 4 of the floor on which the car is landed open. Elevating drive of the car 6 is performed by registering a destination floor with a car call button (not shown) in the car 6 or calling up the car 6 with a hall call button (not shown) provided at the landing of each floor. .

  The monitoring center device 21 is a computer installed in a control center 200 that remotely monitors and controls the elevator 100. The monitoring center device 21 receives the operation data of the equipment of the elevator 100 transmitted from the elevator monitoring device 12 and stores the data. When the monitoring center device 21 receives alert information, the monitoring center device 21 notifies an operator or the like. In addition to this, the monitoring center device 21 of the present embodiment also has a function as a communication control device that changes the frequency of data communication. Details of this function will be described later.

  The communication devices 11A and 11B are communication devices such as a router. The communication device 11A is located at the boundary between the inside and the outside of the elevator 100, and the communication device 11B is located at the boundary between the inside and the outside of the control center 200.

  The communication carrier 20 is a wide area communication network connected to the communication device 11A on the elevator 100 side and the communication device 11B on the control center 200 side, and is provided by the carrier. When the communication carrier 20 is used, expenses are incurred according to the contents of the contract. In the present embodiment, when the monthly data communication amount is equal to or less than the specified value, it becomes a flat rate, but when the specified value is exceeded, it is assumed that the communication speed is reduced or additional cost is generated.

  FIG. 2 is a diagram showing an example of the hardware configuration of the monitoring center device 21. As shown in FIG.

  The monitoring center device 21 includes a controller 101, an input device 110, and an output device 111. The controller 101 controls each piece of hardware operating inside the monitoring center device 21. The controller 101 has the following configuration.

  The CPU 102 (CPU: Central Processing Unit) expands a program stored in the ROM 104 (ROM: Read only memory) or the HDD 105 (HDD: Hard Disk Drive) into the RAM 103 (RAM: Random access memory) and executes calculation. It is a processing device. The CPU 102 centrally controls each piece of hardware in the controller 101 by executing a program. The RAM 103 is a volatile memory and is a work memory when the CPU 102 processes. The RAM 103 temporarily stores necessary data while the CPU 102 executes the program.

  The ROM 104 is a non-volatile memory, and stores a BIOS (Basic Input / Output System) executed by the CPU 102 when the monitoring center device 21 is activated, and firmware.

  The HDD 105 is an auxiliary storage device that stores data in a non-volatile manner. The HDD 105 stores programs executed by the CPU 102 for calculation and control data. In the present embodiment, programs and various data for providing each function to be described later are introduced in advance.

  A network I / F 106 is an interface board responsible for control of data communication performed with an external device.

  The input I / F 107 is an interface that controls input and output of signals with the input device 110. The output I / F 108 receives an instruction from the CPU 102 and causes the output device 111 to draw an image.

  The input device 110 is, for example, a keyboard or a mouse, and the output device 111 is a flat monitor or a display.

  FIG. 3 is a block diagram showing a configuration example of the present embodiment. The elevator control device 13 has an operation control unit 14. The elevator monitoring device 12 includes a failure detection unit 15, a failure notification unit 16, a call unit 17A, a content display unit 18, and an operation data transmission unit 19. The monitoring center device 21 further includes a communication data usage totaling unit 22, a transmission frequency determination unit 23, an alert reception unit 24, a call unit 17B, a content transmission unit 25, an operation data collection unit 26, and a storage unit 28.

  The operation control unit 14 operates the car 6 to the designated floor and transmits the operation information of the elevator 100 to the failure detection unit 15 in the elevator monitoring device 12.

  The failure detection unit 15 detects a failure of the elevator 100 from the received operation information of the elevator 100. When a failure is detected by the failure detection unit 15, the failure notification unit 16 issues a notification to the notification reception unit 24 in the monitoring center apparatus 21 via the communication device 11A, the communication carrier 20, and the communication device 11B. When the alert reception unit 24 receives an alert, the operator in the control center 200 instructs the technicians of the sales offices provided at the respective bases to take appropriate measures to correct the abnormality, and the sales offices perform restoration work. Dispatch engineers to handle and respond to anomalies.

  The call unit 17A is connected to the call button 27. The call unit 17A communicates with the call unit 17B in the monitoring center apparatus 21 via the communication carrier 20 when the user presses the call button 27 in an emergency such as closing. This enables in-car communication between the user in the car 6 and the operator in the control center 200. The call unit 17A converts the voice in the car 6 into a digital signal, divides the voice into IP packets, and transmits the IP packets to the monitoring center device 21. The captured moving image in the car 6 may be transmitted together with the voice.

  The content transmission unit 25 transmits content such as news information, weather information, and a video advertisement to the content display unit 18 in the elevator monitoring device 12 via the communication carrier 20. The content display unit 18 displays the received content on a screen in the facility of the elevator 100 such as the in-car liquid crystal screen 3.

  The operation data collection unit 26 operates the elevator monitoring device 12 via the communication device 11 and the communication carrier 20 once a day for the operation data collection command in order to collect operation data accumulated by the elevator monitoring device 12. Transmit to the data transmission unit 19. When the operation data transmission unit 19 receives the operation data collection command, the operation data transmission unit 19 transmits the accumulated operation data such as the number of times of opening and closing of the door of the elevator 100 and the number of travelings to the operation data collection unit 26.

  The communication data usage totaling unit 22 receives, from the communication carrier 20, the communication data usage for the amount of communication performed within the current month (within a predetermined period) of the communication device 11A. When there are a plurality of elevators 100, the communication data usage totaling unit 22 totalizes the received communication data usage, and transmits the communication data usage to the transmission frequency determination unit 23.

  Based on the communication data usage amount for the current month acquired from the communication data usage amount aggregation unit 22, the transmission frequency judgment unit 23 (communication frequency control unit) It is determined whether the difference between the upper limit value and the current communication data usage amount) is equal to or less than a threshold. If it is equal to or less than the threshold value, control is performed to lower the frequency of some data communication according to level division information (described later) stored in the storage unit 28.

  FIGS. 4A to 4D are diagrams showing the types of communication data according to the present embodiment, and are diagrams showing an example of the level division information stored in the storage unit 28, respectively. In this embodiment, the types of communication data transmitted and received between the elevator 100 and the monitoring center device 21 via the communication carrier 20 are leveled in priority order and communication data usage amount, and are associated in a table form Are stored in the storage unit 28. In the present embodiment, any one of FIGS. 4A to 4D is stored in the storage unit 28 as the level division table, but all the tables illustrated in FIGS. 4A to 4D are stored, and the user Each table may be used properly by designating one of them.

  Here, control of communication frequency according to level division and level division will be specifically described using the level division table 401 of FIG. 4A. In the level division table 401, in-car calls and fault reports are defined as communication data with high priority (third communication). Further, the communication data usage of the in-car call is defined as a large usage, and the communication data usage of the fault alert is defined as a small usage. The operation data is communication data (second communication) defined as priority (medium) and data usage (large), and content data such as news information, weather forecast, video advertisement, etc. has priority (small) And it is communication data (1st communication) defined as data usage (large). In this embodiment, the levels are divided into the first communication, the second communication, and the third communication according to the priority, but the levels may be divided according to the communication data usage.

  The transmission frequency determination unit 23 receives the communication data usage amount for the current month from the communication data usage amount aggregation unit 22, and changes the communication frequency according to the plurality of set determination values, that is, the remaining communication data amount. The unit 26 instructs the content transmission unit 25. For example, when the amount of remaining communication data for the current month becomes equal to or less than a predetermined value, content transmission is performed so as to lower the communication frequency of news data, weather information, and content data of video advertisement with high priority (low) and large communication data usage. Command the unit 25. In addition, when the amount of remaining communication data for the current month falls further, the communication frequency of the operation data with high priority (medium) and large amount of communication data used is reduced, and the content with high priority (low) and large amount of communication data used Command to stop communication for the current month.

  The level division, the communication type, and the degree of communication frequency can be adjusted or changed according to the request of the elevator manager or the customer who owns the elevator.

  4B to 4D are illustrated as other variations. In the level division tables 402 to 404 shown in FIGS. 4B to 4D, the differences with respect to the level division table 401 in FIG. 4A are indicated by thick frames.

  The level division table 402 in FIG. 4B is a level division table 401 in which operation data is further divided into levels. In the level division table 402, those related to the operation data of the device, such as the number of times of opening and closing the door of the elevator 100, the torque value, and the number of rotations of the motor 10 are defined as priority (middle) and data usage (large). In addition, the operation data related to usage modes such as operation data indicating how many times the floor has been stopped and the number of users by floor derived based on the measurement value of a weighing scale not shown have priority (low And data usage (small).

  The level division table 403 of FIG. 4C is a level division table 401 of FIG. 4A further divided into levels of content data in detail. That is, in the content data, the priority is (middle) for news and weather forecast, and the priority (small) for video advertisement.

  In the level division table 404 of FIG. 4D, update data and failure investigation data are further provided with respect to the level division table 401 of FIG. 4A, and these are regarded as priorities (middle). The update data is an update program or update data of software operated by the elevator control device 13 and the elevator monitoring device 12, and is transmitted from the monitoring center device 21 as needed. In the present embodiment, update data is defined as communication data usage (large). The failure investigation data is data for investigation analysis that is generated when a failure occurs or after the failure is resolved, and is defined as communication data usage (small) in the present embodiment.

  Aside from FIGS. 4A to 4D, level division of various variations can be considered. For example, if an in-car call is normally performed by both a voice call and a camera moving image, only the voice call may be implemented when the remaining communication data amount becomes equal to or less than a predetermined value. In addition, the communication data usage may be divided into three or more levels, or the priority may be subdivided so as to be more than three. Further, in the present embodiment, level division is performed on both the communication data usage amount and the priority, but only one of them may be used.

  As shown to FIG. 4A-FIG. 4D, in this embodiment, high priority is provided about the in-car telephone call and failure alerting with high urgency. Thereby, the transmission frequency determination unit 23 controls the communication data so as not to reduce the communication frequency for the communication data with high urgency.

  The transmission frequency determination unit 23 identifies the type of communication data using the port number included in the header of the TCP protocol or the UDP protocol, and reduces the communication frequency according to the level division table shown in FIGS. 4A to 4D. Take control. In the case of identifying communication data using the same port number, the transmission frequency determination unit 23 identifies the data using information for identifying data content, which is used in a higher application layer.

  Next, an operation example of the present embodiment will be described using the flowchart of FIG. Here, for example, the operation will be described using the level division table 401 shown in FIG. 4A. Further, in this example, two threshold values for determination are set. Specifically, 50% of the communication data amount upper limit that can be used at a flat rate per month is set as the first communication threshold (first threshold), and 25% of the communication data amount upper limit that can be used at a flat rate %] As the second communication threshold (second threshold). Thus, the second communication threshold is a more strict numerical value than the first communication threshold. Further, in the example of this flowchart, the content transmission unit 25 and the operation data collection unit 26 issue a distribution instruction of content and an operation data collection instruction once a day in a normal state.

  When the communication data usage totaling unit 22 receives the current communication data usage for the current month (S101: Yes), the process proceeds to step S102. When the communication data usage amount is not received (S101: No), the process returns to step S101.

  The transmission frequency determination unit 23 calculates the remaining communication data amount from the difference between the upper limit value of the communication amount for the flat rate set in the contract and the current communication data use amount. Then, when the remaining communication data amount is equal to or less than the first communication threshold, that is, the remaining communication data amount is equal to or less than 50% of the contracted communication data usage amount (S102: Yes) It is determined that the frequency of communication with a large (low) and large amount of communication data usage is reduced. Then, the transmission frequency determination unit 23 instructs the content transmission unit 25 and the operation data collection unit 26 to change the communication frequency from once a day to once every 3 days (S103). In addition, when the remaining communication data amount is larger than the first communication threshold, that is, the remaining communication data amount is larger than 50% of the contracted communication data usage amount (S102: No), the transmission frequency determination unit 23 The communication frequency is not changed, and the process returns to step S101. Note that this is the operation of the first set.

  Continuing on, the second set of operations will be described. In step S201, when the communication data usage totaling unit 22 receives the communication data usage (S201: Yes), the process proceeds to step S202. When the communication data usage amount is not received (S201: No), the process returns to step S201.

  In step S202, if the transmission frequency determination unit 23 continues to make the remaining communication data amount equal to or less than the first communication threshold, that is, 50% or less of the communication data usage amount for which the remaining communication data amount is contracted ( S202: Yes), the process proceeds to step S203. On the other hand, when the remaining communication data amount is larger than the first communication threshold, that is, when the count of the current communication data usage is reset due to a change of month, etc. (S202: No), the transmission frequency determination unit 23 It is determined that the changed communication frequency is reset to the initial value (S204). The transmission frequency determination unit 23 instructs the content transmission unit 25 and the operation data collection unit 26 to return the communication frequency from once every three days to once every one day (S204), and returns the process to step S101.

  If the remaining communication data amount is equal to or less than the second communication threshold, that is, the remaining communication data amount is equal to or less than 25% of the contracted communication data usage amount (S203: Yes), the transmission frequency determination unit 23 determines the priority ( Medium) and it is determined that the frequency of communication with large communication data usage is reduced. Here, it is assumed that the frequency of the corresponding communication data is reduced from once a day to once every three days. Further, the transmission frequency determination unit 23 determines to stop transmission of a communication with a high priority (low) and a large amount of communication data usage. The transmission frequency determination unit 23 instructs the content transmission unit 25 and the operation data collection unit 26 to perform these operations (S205, S206), and the process proceeds to step S301.

  On the other hand, if the remaining communication data amount is larger than the second communication threshold, that is, the remaining communication data amount is larger than 25% of the contracted communication data usage amount (S203: No), the transmission frequency determination unit 23 The communication frequency is not changed, and the process returns to step S201. This is the operation of the second set.

  Continuing on, the third set of operations will be described. In step S301, when the communication data usage totaling unit 22 receives the communication data usage (S301: Yes), the process proceeds to step S302. When the communication data usage amount has not been received (S301: No), the process returns to step S301.

  The transmission frequency determination unit 23 continues the state in which the remaining communication data amount is equal to or less than the first communication threshold, that is, the remaining communication data amount is 25% or less of the contracted communication data usage amount (S302: Yes ), Return to step S301.

  In addition, when the remaining communication data amount is larger than the first communication threshold, that is, when the count of communication data usage is reset due to a change of month, etc. (S302: No), the transmission frequency determination unit 23 determines the communication frequency. It is determined that the changed communication and the transmission-stopped communication are reset to initial values. Then, the transmission frequency determination unit 23 instructs the content transmission unit 25 and the operation data collection unit 26 to return the communication frequency to once a day, and returns to step S101. This is the operation of the third set.

  As described above, by performing the first to third sets repeatedly, the communication frequency of part of the communication data via the communication carrier 20 is reduced or stopped, and communication with high urgency (high priority) is performed. Not to affect the In the present example, two thresholds of the first communication threshold and the second communication threshold are provided, but the number of thresholds is not limited to this and may be further subdivided. Also, depending on the number of thresholds, the number of each set in the flowchart can be multi-step.

  In the present embodiment, the communication data usage totaling unit that receives the current communication data usage amount for the current month of each communication device from the communication carrier, and provides the communication data usage amount totaling unit that performs consolidated management is provided in the monitoring center device. A transmission frequency determination unit is provided in the monitoring center apparatus to change the communication frequency according to the current communication data usage amount for the current month and the content and type of the communication data. This makes it possible to change the frequency of communication data according to the amount of remaining communication data for the current month, and reduce failure to exceed the upper limit of the amount of communication data usage defined in the contract contents, and realize failure monitoring. It is possible to provide an elevator monitoring system that can.

Second Embodiment
For example, if the remaining communication data amount reaches 50 [%] at the timing when the count of the communication data amount used this month is reset after another 2-3 days, 50 of the communication data usage amount in the remaining few days It is hard to think of using up [%]. In the second embodiment, in addition to the aspect of the first embodiment, an implementation example in which the remaining number of days is also considered will be described. The apparatus configuration and functional blocks will be described using the configuration of the first embodiment.

  FIG. 6 is a flowchart showing an operation example of the second embodiment. The steps surrounded by thick frames are the steps added in the second embodiment, and the other steps are the same as in the first embodiment, and thus the description will be omitted here.

  In step S102, when the remaining communication data amount is less than or equal to 50% of the contracted communication data usage amount (S102: Yes), the transmission frequency determination unit 23 determines that the remaining number of days is the first day threshold (third It is determined whether the threshold value or less is reached (S501). The remaining number of days is determined by the difference between the last date of the current month and the current date. Here, it is assumed that the first day threshold is set to 5 days in advance. If the remaining number of days is 5 days or less (S501: Yes), the transmission frequency determination unit 23 determines that the remaining communication data usage amount (50 [%]) is not used up for the remaining number of days, and processing is performed in step S101. Return. On the other hand, if the remaining days exceed 5 days (S501: No), the remaining communication data usage amount (50 [%]) may be used up due to the remaining days, so the communication frequency is reduced (S103) ).

  In step S203, when the remaining communication data amount is 25 [%] or less of the contracted communication data usage amount (S203: Yes), the transmission frequency determination unit 23 further sets the remaining days threshold to the first day threshold value (for example, It is determined whether it has become 2 days or less (S502). If the remaining number of days is 2 days or less (S502: Yes), the transmission frequency determination unit 23 determines that the remaining communication data usage amount (25 [%]) is not used up for the remaining number of days, and processing is performed in step S201. Return. On the other hand, if the remaining days exceed 2 days (S501: No), the remaining communication data usage (25 [%]) may be used up with the remaining days, so the communication frequency is reduced (S205) ).

  As described above, the transmission frequency determination unit 23 of the second embodiment further performs comparison determination on the remaining number of days. This can suppress unnecessary lowering of the communication frequency. The threshold number of days is adjusted to be a more preferable value.

  Each numerical value etc. which were shown in the 1st, 2nd embodiment are an illustration to the last, and are changed according to a use mode etc. of an elevator. In addition, depending on the usage of elevators, it is also preferable to classify what level of communication is prioritized (high) and prioritized (low), and whether the level of communication data communication is large or small. Adjusted, changed.

  In the above embodiment, it is determined whether transmission is performed or not at the level of the application layer, presentation layer, session layer, etc., which are higher than the network layer or transport layer of the OSI reference model, and the communication frequency is changed. Explained. That is, when the frequency of communication is changed and the frequency is lowered in the upper layer such as the application layer, an implementation example in which data is not delivered to the transport layer or lower until reaching a prescribed time or number of days has been described. Further, in the present embodiment, when it is determined that transmission is performed, data forming meaning in the application layer is transmitted as one group and all of them are transmitted, and when it is determined that transmission is not performed, one group of data is not transmitted at all. Thus, an implementation example for changing the frequency of communication has been described.

  In the case of bandwidth control in the conventional network layer and transport layer or lower, communication control is performed with low priority according to the setting values of the port number, ToS field, and CoS field, but with low priority We have adopted a format that seeks to transmit as much as possible. That is, in the conventional band control, when there is a margin in the band, all data is transmitted regardless of the level of priority, and even if the band is compressed and the usable band is reduced, Even for low priority data, communication is performed not a little. On the other hand, in the present embodiment, when the frequency of communication is changed to, for example, once every three days, even if there is a margin in the bandwidth, the communication is not returned to once a day, etc. Until then, the communication frequency is kept low. The control for reducing the communication frequency in the present embodiment includes such control. Note that lowering the communication frequency also includes stopping the communication conceptually.

  The aspect of the present embodiment may be implemented by a communication device (for example, the communication device 11 in the control center 200).

  In the above embodiment, the comparison operation is performed based on the remaining communication data amount and the remaining number of days, and the threshold is provided, but the threshold is provided based on the amount of used data at present and the number of elapsed days, and the comparison operation is performed. May be There is no technical difference in whether to process based on the remaining communication data volume and the remaining number of days, or based on the current usage data volume and the number of elapsed days, it is interpreted as being synonymous. , At least the equivalent range. Further, in the comparison operation, there is no technical difference in the present embodiment with respect to the difference between “below” and “less than” and the difference between “above” and “greater than”. For example, in the process of determining whether the threshold is 50.0 with 50.0 and the process of determining whether the threshold is less than 50.1 with 50.1, the processing results of the integer part are both Match As in this example, by changing the numerical value of the threshold, “less than” and “less than”, and “greater than” and “greater than” become synonymous, and these differences are at least in the equivalent range.

  As described in detail above, according to the present embodiment, exceeding the upper limit of the communication data usage amount can be reduced.

  The present invention is not limited to the above-described embodiment, but includes various modifications. For example, the above-described embodiment is described in detail to explain the present invention in an easy-to-understand manner, and is not necessarily limited to one having all the described configurations. Further, part of the configuration of one embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of one embodiment. Moreover, it is possible to add, delete, and replace other configurations for part of the configurations of the respective embodiments. Further, each of the configurations, functions, processing units, processing means, etc. described above may be realized by hardware, for example, by designing part or all of them with an integrated circuit. Further, each configuration, function, etc. described above may be realized by software by the processor interpreting and executing a program that realizes each function. Information such as a program, a table, and a file for realizing each function can be placed in a memory, a hard disk, a recording device such as an SSD (Solid State Drive), or a recording medium such as an IC card, an SD card, or a DVD.

2: Control panel 3: In-car liquid crystal screen 11: Communication device 12: Elevator monitoring device 13: Elevator control device 14: Operation control unit 15: Failure detection unit 16: Failure notification unit 17A: Call unit 17B: Call unit 18: Content display unit 19: operation data transmission unit 20: communication carrier 21: monitoring center device 22: communication data usage totaling unit 23: transmission frequency determination unit 24: notification reception unit 25: content transmission unit 26: operation data collection unit 27 : Call button 200: Control center

Claims (7)

A communication control apparatus that communicates with an elevator via a wide area communication network,
A storage unit for storing level division information which is information defined by dividing each communication via the wide area communication network into levels for each type of communication;
When the remaining amount of data communication amount via the wide area communication network within a predetermined period becomes equal to or less than a first threshold, the communication frequency is lowered for some types of communication based on the level division information A communication frequency control unit to control
A communication control device having The communication control apparatus according to claim 1,
The communication frequency control unit is configured to, based on the level division information, when the remaining amount of the data communication amount is equal to or less than a second threshold provided as a value stricter than the first threshold. Control to stop the first communication which is the communication of the type of
Communication control unit. The communication control apparatus according to claim 2,
When the remaining amount of the data communication amount is less than or equal to the second threshold, the communication frequency control unit determines, based on the level division information, the second communication that is a communication of a type different from the first communication. The control to lower the communication frequency, and the control to lower the communication frequency and the control to stop the communication are not performed for the third communication whose type is different from the first communication and the second communication.
Communication control unit. The communication control apparatus according to claim 1,
The storage unit stores level division information divided into levels by priority,
The communication frequency control unit controls to lower the communication frequency for the communication set as the type with low priority based on the level division information, when it becomes equal to or less than the first threshold.
Communication control unit. The communication control apparatus according to claim 4,
The storage unit stores in-car calls and fault alert information as level division information set as high priority type communication,
The communication frequency control unit does not lower the communication frequency of the in-car call and failure alert types based on the level division information.
Communication control unit. The communication control apparatus according to claim 1,
The storage unit stores level division information divided into levels according to the amount of data communication,
The communication frequency control unit performs control to lower the communication frequency for the communication set as the type having a large amount of data communication based on the level division information, when it becomes equal to or less than the first threshold.
Communication control unit. The communication control apparatus according to claim 1,
When the remaining amount of data communication amount becomes equal to or less than the first threshold, the communication frequency control unit further compares the remaining number of days in the predetermined period with a third threshold, and the remaining number of days is Performing the control to reduce the frequency of communication when the frequency is less than or equal to the third threshold;
Communication control unit.

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