Elevator control system and elevator control method

Abstract

To enable appropriate control while reducing the communication load between a car and an elevator control device or the outside.SOLUTION: A car terminal 20 installed in a car is communicatively connected to an elevator control device 100 and data obtained in the car terminal 20 is transmitted to an elevator control device 100 or the like. The car terminal 20 includes an in-car management unit that acquires and manages data representing the state of the car, and an in-car transmission unit that transmits the data in the state of being managed by the in-car management unit to the elevator control device or external devices. The elevator control device 100 transmits a determination result of the operational state of the car to the car terminal 20. Upon receiving data of the operational state and determining that doors of the car have been fully closed, the car terminal 20 transmits the data managed by the in-car management unit to the elevator control device 100 or the like.SELECTED DRAWING: Figure 2

Description

[Technical field]

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

[0002] In recent years, elevators communicate between the inside of the car and a control device, and transmit data detected in the car and image data captured by a camera to the control device. In addition, elevators may also transmit data from the inside of the car to external devices via the control device.

[0003] Patent Document 1 describes a technology for calculating the number of passengers getting on and off an elevator and the number of passengers on board, based on the load detected by a load sensor in the car. In the technology described in Patent Document 1, the detected data on the number of passengers getting on and off and the number of passengers on board are transmitted to an external center device via a terminal (control device), and an elevator operation schedule is set. Then, the elevator is operated to reduce the waiting time of passengers. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2016-37344 A Summary of the Invention [Problem to be solved by the invention]

[0005] The technology described in Patent Document 1 transmits detection data from a load sensor to a control device or an external device to set an elevator operation schedule. Here, in order to obtain an appropriate operation schedule, it is necessary to constantly transmit detection data from the load sensor to the control device or an external central device, and particularly during operation, a very large amount of data needs to be transmitted from the terminal in the elevator car.

[0006] In this way, in the case of elevator systems with advanced control, the amount of communication between the inside of the car and the control device or the outside tends to increase. Therefore, the communication equipment of the elevator system needs to be a powerful equipment capable of transmitting large amounts of data, and the cost of maintaining the network lines connecting the communication equipment is increasing.

[0007] In view of the above, an object of the present invention is to provide an elevator control system and an elevator control method that are capable of appropriate control while reducing the burden of communication between the inside of the elevator car and a control device or the outside. [Means for solving the problem]

[0008] In order to solve the above problems, for example, the configurations described in the claims are adopted. The present application includes multiple means for solving the above problems. One example is an elevator control system in which a car terminal installed in a car is connected to an elevator control device so that they can communicate with each other via wired or wireless communication, and data obtained by the car terminal is transmitted to the elevator control device or an external device. Here, the car terminal is equipped with an in-car management unit that acquires and manages data on the status of the car, and an in-car transmission unit that transmits the status data managed by the in-car management unit to an elevator control device or an external device. The elevator control device also includes an elevator status management unit that acquires a judgment result of the operating status of the elevator car and transmits the acquired judgment result to the car terminal. The car terminal receives data on the operation status from the elevator status management unit, and after determining that the car doors have been closed, transmits the data managed by the car in-management unit from the car in-transmission unit to an elevator control device or an external device. Effect of the Invention

[0009] According to the present invention, the car terminal in the car can transmit data to the elevator control device or an external device when it receives data on the operating state from the elevator control device. Therefore, data transmission from the car is performed only when the status inside the car is necessary, and data transmission from the car can be performed at an appropriate timing. In other words, according to the present invention, the amount of data communication between the car and the elevator control device can be appropriately reduced. Problems, configurations and effects other than those described above will become apparent from the following description of the embodiments. [Brief description of the drawings]

[0010] [Figure 1] 1 is a block diagram showing a schematic configuration of an elevator control system according to an embodiment of the present invention. FIG. [Diagram 2] 1 is a block diagram showing a configuration of each device of an elevator control system according to an embodiment of the present invention. FIG. [Diagram 3] 2 is a block diagram showing an example of a hardware configuration of a car terminal according to an embodiment of the present invention. FIG. [Figure 4] 5 is a flowchart showing an example of processing in a car terminal according to an embodiment of the present invention. [Diagram 5] 5 is a flowchart showing an example of processing in an elevator control device according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

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

[0012] [Overall schematic configuration of elevator control system] First, the schematic configuration of the elevator control system of this embodiment will be described with reference to FIG. The elevator control system of this example includes a car 10 that travels (moves up and down) under the control of an elevator control device 100. The car 10 travels by being driven by a hoist (not shown) in the elevator control device 100. Note that a mechanism for traveling the car 10, such as a hoist, is omitted in Fig. 1 . The car 10 is equipped with doors 11 which open and close when the car arrives at a landing on each floor.

[0013] An in-car camera 12 is installed in the car 10. The in-car camera 12 is installed on the ceiling or wall of the car 10, and captures video or still images of the inside of the car 10. For example, the in-car camera 12 is installed on the ceiling or wall at the far end away from the door 11 of the car 10, and is capable of capturing images of not only the inside of the car 10, but also the door 11. Therefore, the in-car camera 12 captures images of almost the entire inside of the car 10 from the ceiling side, and also captures images of passengers getting into the car 10 through the door 11 (such as the faces of the passengers). The image captured by the in-car camera 12 is analyzed by a car terminal 20 installed in the car 10. The car terminal 20 is installed, for example, on the upper part of the car 10 (above the ceiling).

[0014] Inside the elevator car 10, an in-car display unit 14 is installed to display information such as stopping floors. Furthermore, car call buttons 31, 32 and a landing display unit 33 are provided at the landing of each elevator floor.

[0015] The results of the analysis by the car terminal 20 are transmitted to the elevator control device 100 together with the captured image. The elevator control device 100 judges the usage status of the car 10 based on the image analysis results by the car terminal 20. Then, the elevator control device 100 controls the operation of the elevator based on this judgment result. The results of the analysis by the car terminal 20 are also transmitted to the external linking device 200 together with the captured image. The external linking device 200 is connected to a plurality of external systems (a first external system 210, a second external system 220, and a third external system 230) via a network, and the results of the image analysis by the car terminal 20 are used in each of the external systems.

[0016] [Detailed configuration of elevator system] FIG. 2 shows a detailed configuration of the elevator control system of this example. The elevator control system of this example includes a car terminal 20, an elevator control device 100, and an external linkage device 200. The car terminal 20 is a device installed in the car 10 (FIG. 1), and acquires images from an in-car camera 12 installed in the car 10. The images captured by the car interior camera 12 are transmitted from the image management unit 13 provided in the car interior camera 12 to the image analysis processing unit 21 of the car terminal 20.

[0017] The car terminal 20 includes an image analysis processing unit 21, an image analysis result management unit 22, and an image analysis result transmission unit 23, and performs data collection processing and data transmission processing within the car. The image analysis processing unit 21 performs image analysis processing to detect the number of passengers in the car and the number of passengers getting on and off when the elevator stops at the landings on each floor from the images provided. The image analysis processing in the image analysis processing unit 21 is triggered by a command from the elevator status management unit 116 of the elevator control device 100, which will be described later.

[0018] The image analysis result management unit (car interior management unit) 22 acquires the number of passengers in the car detected by the analysis processing in the image analysis processing unit 21 and the number of passengers getting on and off when the car stops at the boarding area on each floor, and performs car interior management processing. The image analysis result transmission unit (in-car transmission unit) 23 transmits data on the number of passengers and the number of passengers getting on and off managed by the image analysis result management unit 22 to the elevator control device 100 and the external linkage device 200 in response to an instruction from the image analysis result management unit 22. In addition, the image analysis result transmission unit 23 transmits data on images captured by the in-car camera 12 to the elevator control device 100 and the external linkage device 200. This image data is transmitted simultaneously with the transmission of the data on the number of passengers and the number of passengers getting on and off. Alternatively, the image analysis result transmission unit 23 may constantly transmit image data at a fixed cycle.

[0019] The elevator control device 100 includes an elevator control processing unit 111, an operation state acquisition unit 112, an operation state determination unit 113, a door opening state acquisition unit 114, a door opening state determination unit 115, an elevator state management unit 116, an elevator display management unit 121, and an elevator display update unit 122.

[0020] The elevator control processing unit 111 controls the operation of the car based on data from the car terminal 20 and data generated by the elevator control device 100 (not shown). The elevator control processing unit 111 also issues instructions to the operation execution unit 16 based on the control processing results. Data such as the number of passengers are supplied to this elevator control processing unit 111 from the image analysis result transmission unit 23 of the car terminal 20, and this data is reflected in the operation control of the car. In addition, the elevator control processing unit 111 may also control the opening and closing of the door 11 of the car 10.

[0021] The operating state acquisition unit 112 acquires data on the operating state (running, stopped, etc.) from the operating state detection unit 101 of the car 10. The operating state determination unit 113 determines the operating state of the car 10 based on the data acquired by the operating state acquisition unit 112. The door open state acquisition unit 114 acquires data on the door open state from the door 11 of the car. The door open state determination unit 115 determines the open state of the door 11 based on the data acquired by the door open state acquisition unit 114.

[0022] The elevator status management unit 116 acquires data on the operation status determined by the operation status determination unit 113 and data on the door open status determined by the door open status determination unit 115, manages the operation status of the elevator, and transmits necessary control commands to the elevator control processing unit 111. The elevator status management unit 116 also transmits the managed data on the operation status and the door open / close status to the car terminal 20. Here, the elevator status management unit 116 may transmit to the car terminal 20 a value of the in-car load sensor captured in the elevator control device 100 as one of the pieces of information handled by the elevator status management unit 116.

[0023] The elevator display management unit 121 manages the displays on the display unit 14 in the car and the landing display units 33-1, 33-2, ... on each floor. The elevator display management unit 121 is supplied with data such as the number of passengers and the number of people getting on and off from the image analysis result transmission unit 23 of the car terminal 20. When the display content needs to be updated based on this data, the elevator display update unit 122 performs display update processing corresponding to the elevator display management unit 121.

[0024] The displays on the landing display units 33-1, 33-2, ... on each floor include the floor and direction of travel of the car 10, and the degree of congestion of the car 10. The degree of congestion may be displayed simply in two stages, indicating whether the car is crowded or not, or in multiple stages according to the number of passengers. As a multiple-stage display, for example, a three-stage display indicating a state in which there are only a few passengers, a state in which a certain number of passengers are on board, and a state in which the car is nearly full may be considered. Furthermore, the states may be displayed in a visually easy-to-understand manner using colors, marks, figures, etc., instead of letters.

[0025] The external collaboration device 200 includes a data management unit 201 and a data distribution unit 202 . The data management unit 201 acquires data output from the image analysis result transmission unit 23 of the car terminal 20 in the car, such as data on the number of passengers, the number of people getting on and off, and image data. The data management unit 201 also acquires data on the elevator management status in the elevator status management unit 116. These data are data to be transmitted to an external device. The external device here is a device that uses the data on the management status of the elevator, and in this example corresponds to the first external system (people flow detection device) 210, the second external system (image management device) 220, and the third external system (maintenance data management device) 230.

[0026] The data extracted by the data management unit 201 is sent to the data sorting unit 202 and sorted into data to be supplied to the people flow detection device 210, data to be supplied to the image management device 220, and data to be supplied to the maintenance data management device 230. The data distributed by the data distribution unit 202 is supplied individually to a people flow detection device 210, an image management device 220, and a security data management device 230.

[0027] [Example of hardware configuration for each device, such as car terminal] FIG. 3 shows an example of a hardware configuration in which the car terminal 20 installed in the car is configured as a computer. The car terminal 20, which is constituted by a computer device, includes a CPU (Central Processing Unit) 20a, a memory 20b, a storage 20c, an image input / output unit 20d, a data input / output unit 20e, and a network interface 20f, which are all connected to a bus.

[0028] The CPU 20a is an arithmetic processing unit that reads out program code of software for implementing the functions performed by the car terminal 20 from the memory 20b or the storage 20c and executes it. The CPU 20a reads out the program code from the memory 20b or the storage 20c and executes arithmetic processing in the work area of ​​the memory 20b, thereby configuring various processing function units in the memory 20b. That is, the memory 20b is configured with an image analysis processing unit 21, an image analysis result management unit 22, and an image analysis result transmission unit 23 shown in FIG.

[0029] The storage 20c may be, for example, a large-capacity information storage medium such as a hard disk drive (HDD), a solid state drive (SSD), a memory card, etc. The storage 20c stores software that realizes the functions of the car terminal 20, data obtained by executing the program, and data required for display screen settings.

[0030] The image input / output unit 20d performs input processing of image data from the in-car camera 12, and also performs output processing of the image data to the elevator control device 100 or the like. The data input / output unit 20e performs input processing of instructions from the elevator control device 100 and output processing of data transmitted by the image analysis result transmission unit 23. The network interface 20f may be, for example, a network interface card (NIC), and is used to transmit and receive data to and from other devices.

[0031] Note that the car terminal 20 configured with a computer as shown in Fig. 3 is just an example, and may be configured with other arithmetic processing devices other than a computer. For example, some or all of the functions performed by the car terminal 0 may be realized by hardware such as a field programmable gate array (FPGA) or an application specific integrated circuit (ASIC). Moreover, the elevator control device 100 and the external linkage device 200 shown in FIG. 2 are also configured by a computer having a hardware configuration similar to that of the car terminal 20, or by other arithmetic processing devices.

[0032] [Example of processing on the car terminal inside the car] 4 is a flowchart showing a processing example of data transmission from the car terminal 20 in the car to the elevator control device 100 and the external systems 210 to 230. Note that the door opening and door closing described in the following processing refer to the door opening and door closing of the door 11 in the car 10. First, the car terminal 20 judges whether or not it has received an image of the inside of the car output from the in-car camera 12 (step S11). If it has received an image in step S11 (YES in step S11), the car terminal 20 judges whether or not it has received elevator status data from the elevator status management unit 116 of the elevator control device 100 (step S12).

[0033] When elevator status data is received in step S12 (YES in step S12), the car terminal 20 judges whether or not the door opening of the car 10 is detected (step S13). When the door opening is not detected in step S13 (NO in step S13), the car terminal 20 waits until the door opening is detected.

[0034] Then, if door opening is detected in step S13 (YES in step S13), the image analysis result management unit 22 of the car terminal 20 extracts the number of passengers getting on and off at the current stopping floor of the car 10 analyzed by the image analysis processing unit 21 from the image from the in-car camera 12 (step S14). After extracting the number of passengers, the car terminal 20 judges whether or not the door of the car 10 has been closed (step S15). If the door has not been closed in step S15 (NO in step S15), the car terminal 20 repeats the extraction of the number of passengers in step S14. If the door closing is completed in step S15 (YES in step S15), the image analysis result transmission unit 23 of the car terminal 20 transmits the cumulative number of passengers getting on and off from the time the door opens to the time the door closes to the elevator control device 100 and the external systems 210 to 230 (step S16).

[0035] Next, the image analysis result management unit 22 of the car terminal 20 detects the current number of passengers in the car 10 analyzed by the image analysis processing unit 21 from the image captured by the car interior camera 12 (step S17). After detecting the number of passengers, the car terminal 20 judges whether the car 10 has started traveling based on the elevator status data (step S18). If the car 10 has not started traveling in step S18 (NO in step S18), the door may open again, so the image analysis result management unit 22 of the car terminal 20 returns to detecting the number of passengers in step S17.

[0036] In step S18, if the car 10 starts moving (YES in step S18), the image analysis result transmission unit 23 of the car terminal 20 transmits the number of passengers detected in step S17 to the elevator control device 100 and the external systems 210 to 230 (step S19).

[0037] If no image is received in step S11 (NO in step S12), the image analysis result management unit 22 determines whether a predetermined time (first time) has elapsed without receiving an image (step S20). The first time here is, for example, about 10 seconds. In step S20, if the predetermined time has not elapsed (NO in step S20), the image analysis result management unit 22 returns to the determination in step S11.

[0038] Furthermore, if no elevator status data is received in step S12 (NO in step S12), the image analysis result management unit 22 judges whether a predetermined time (second time) has elapsed during which no elevator status data has been received (step S21). The second time here is, for example, about 30 seconds. The first time and the second time being different times is just an example, and both may be, for example, about one minute. In step S21, if the predetermined time has not elapsed (NO in step S21), the image analysis result management unit 22 returns to the determination in step S12. Then, when a predetermined time has elapsed in step S20 (YES in step S20), and when a predetermined time has elapsed in step S21 (YES in step S21), the image analysis result transmission unit 23 of the car terminal 20 transmits a reception abnormality notification to the elevator control device 100 and the external systems 210 to 230 (step S22).

[0039] [Example of processing in elevator control device] FIG. 5 is a flowchart showing an example of processing performed by the elevator control device 100 when the elevator control device 100 receives data from the car terminal 20. In the example of FIG. 5, the display on the landing display units 33-1, 33-2, . . . on each floor is controlled based on the data received from the car terminal 20. First, the elevator status management unit 116 of the elevator control device 100 determines whether or not the destination floor registration button has been pressed in the car 10 and whether or not the car call button has been pressed at the landing, that is, whether or not there is a so-called call registration state (step S31). When it is determined in step S31 that there is no call registration (YES in step S31), the elevator status management unit 116 of the elevator control device 100 determines whether or not the door closing of the car 10 has been completed (step S32). When it is determined in step S32 that the door closing has not been completed (NO in step S32), the elevator status management unit 116 of the elevator control device 100 returns to the determination in step S31.

[0040] Then, when the door closing is completed in step S32 (YES in step S32), the elevator display management unit 121 of the elevator control device 100 updates the congestion degree display on the landing display units 33-1, 33-2, ... of each floor to one based on the latest data (step S33). Here, if the door closing is completed without a call registration, it can be determined that there are no elevator users, so the congestion degree display may be reset. However, it is preferable to reset after a certain period of time has passed, taking into consideration the possibility that a passenger may forget to register their destination floor. After that, the elevator status management unit 116 of the elevator control device 100 determines whether or not the destination floor registration button has been pressed in the car 10 and a call has been registered (step S34). When it is determined in step S34 that there is no call registration for the destination floor (NO in step S34), the elevator status management unit 116 of the elevator control device 100 repeats the determination in step S34.

[0041] Furthermore, when it is determined in step S34 that a call has been registered for the destination floor (YES in step S34), the elevator display management unit 121 of the elevator control device 100 updates the display of the congestion degree on the landing display units 33-1, 33-2, ... of each floor to one based on the latest data (step S35).

[0042] Furthermore, when it is determined in step S31 that a call registration for the destination floor has been made (NO in step S31), the elevator status management unit 116 of the elevator control device 100 determines whether the car 10 has started traveling (step S36). If it is determined in step S36 that the car 10 has not started traveling (NO in step S36), the elevator status management unit 116 returns to the determination in step S31. Then, when the elevator starts running in step S36 (YES in step S36), the elevator display management unit 121 of the elevator control device 100 updates the display of the congestion degree on the landing display units 33-1, 33-2, ... of each floor to one based on the latest data (step S37). After that, the elevator status management unit 116 judges whether or not the car 10 has stopped traveling (step S38). If the car 10 has not stopped in step S38 (NO in step S38), the elevator status management unit 116 waits until the car 10 stops. If it is determined in step S38 that the elevator has stopped (YES in step S38), the elevator display management unit 121 updates the display of the congestion degree on the landing display units 33-1, 33-2, ... on each floor to one based on the latest data (step S39).

[0043] The display update process shown in the flowchart of FIG. 5 is repeatedly executed while the elevator is in operation.

[0044] As described above, according to the system of this example, data transmission from the car terminal 20 in the car to the elevator control device 100 is triggered by receiving data on the operating state from the elevator control device 100. Therefore, according to the system of this example, data transmission from the car is performed only when the status inside the car is necessary, and data transmission from the car can be executed at an appropriate timing. Therefore, according to the system of this example, the amount of data communication between the car 10 and the elevator control device 100 can be appropriately reduced.

[0045] Here, the image analysis result transmission unit 23 of the car terminal 20 determines the number of passengers getting on and off at the corresponding stopping floor before the door of the car 10 is completely closed. Then, the image analysis result transmission unit 23 transmits the determined number of passengers getting on and off at the timing when the completion of the door closing in the car 10 is detected. The image analysis result management unit 22 determines the number of passengers in the car 10 when the doors in the car 10 have been closed, and transmits the determined number of passengers at the time when the car 10 starts moving. This allows the image analysis result management unit 22 to determine the number of people getting on and off and the number of passengers at optimal timing, respectively, and transmit the determined number of people getting on and off and the number of passengers to the elevator control device 100. As a result, the elevator control device 100 can determine the number of people getting on and off and the number of passengers by receiving a minimum amount of data, and appropriately control display, etc.

[0046] Furthermore, when the elevator control device 100 receives the number of passengers getting on and off and the number of passengers transmitted by the image analysis result transmission unit 23, it updates the elevator congestion degree display on the landing display unit based on the number of passengers getting on and off and the number of passengers. This enables the elevator control device 100 to appropriately display the congestion degree, etc. In other words, the number of passengers does not change while the elevator is traveling, and does not need to be updated until the elevator arrives at the next floor and the door opens. Therefore, the elevator control device 100 can display the congestion degree well by receiving a minimum amount of data. Note that the congestion degree is usually determined from the number of passengers in the elevator car 10 while it is traveling, but the congestion degree may be determined by determining the number of passengers from the change in the number of passengers getting on and off at each floor. Alternatively, the congestion degree may be determined using both the number of passengers in the elevator car 10 while it is traveling and the change in the number of passengers getting on and off at each floor.

[0047] As shown in the flowchart of Fig. 5, the elevator control device 100 is configured to update the elevator congestion degree display on the hall display units 33-1, 33-2, ... when detecting a car call registration in the car 10. In this way, the congestion degree display is updated only when necessary.

[0048] The car terminal 20 also includes an image analysis processing unit 21 that analyzes images captured by the in-car camera 12 installed in the car 10, and can appropriately determine the number of people getting on and off and the number of passengers from the images by determining the number of people getting on and off and the number of passengers using the image analysis processing unit 21. However, determining the number of people getting on and off and the number of passengers from the camera images is just one example, and the car terminal 20 may determine the number of people getting on and off and the number of passengers from the value of a load sensor in the car 10, for example.

[0049] Furthermore, when the car terminal 20 does not receive an image captured by the car in-car camera 12 for a predetermined time (first time) or more, the car terminal 20 transmits data on an equipment abnormality to the elevator control device 100. This enables the elevator control device 100 to immediately determine whether or not there is an abnormality in the camera.

[0050] Furthermore, when the car terminal 20 does not receive data on the operation status and the door open status from the elevator status management unit 116 for another predetermined time (second time) or more, the car terminal 20 transmits data on a communication abnormality to the elevator control device 100. This enables the elevator control device 100 to immediately determine whether there is a reception abnormality in the car terminal 20. The car terminal 20 may transmit data on these equipment abnormalities and communication abnormalities to the external systems 210, 220, 230, and allow the external systems 210, 220, 230 to determine whether there is a reception abnormality.

[0051] [Variations] It should be noted that the embodiment examples described so far have been described in detail in order to explain the present invention in an easily understandable manner, and are not necessarily limited to those having all of the configurations described.

[0052] For example, in the update process of the platform display unit described in the flowchart of Fig. 5, the process of updating the congestion degree display is executed when there is no call registration in the car (step S31) or when a call registration is detected (step S34). On the other hand, the same process may be executed when the car call button is operated from the platform, in addition to the call registration from inside the car. In this way, the elevator control device 100 updates the congestion degree display when the car call button at the landing is operated, so if it can be assumed that there is no one waiting for the elevator at the landing, it can perform appropriate display updates without updating the congestion degree display.

[0053] In addition, in the above-described embodiment example, the elevator display management unit 121 of the elevator control device 100 applies the received data to the elevator congestion degree display in the hall display units 33-1, 33-2, ..., but the data received from the car terminal 20 of the car 10 may also be applied to other processes. Although the data on the number of passengers getting on and off and the number of passengers transmitted by the car terminal 20 has not been described as being used by the external systems 210, 220, 230, appropriate processing can also be performed by the external systems 210, 220, 230 that receive the data transmitted from the car terminal 20 in the processing shown in the flowchart of Fig. 4. For example, the first external system (people flow detection device) 210 can appropriately detect the flow of people on each floor of a building from the number of passengers getting on and off and the number of passengers. Moreover, the second external system (image management device) 220 can appropriately manage the elevator usage status based on the images.

[0054] Furthermore, the third external system (maintenance data management device) 230 can analyze and monitor whether the elevator operation status is appropriate based on the number of people getting on and off, the number of people riding in the elevator, and the elevator operation status. Since any of these external systems 210, 22, and 230 receive data transmitted when the elevator door closes or the elevator starts moving, appropriate management can be performed with the minimum amount of data received.

[0055] In addition, in the above-described embodiment, communication between the car terminal 20 in the car 10 and the elevator control device 100 or the outside is performed via a wired connection, but communication between the car terminal 20 and the elevator control device 100, and communication between the car terminal 20 and the outside, may also be performed wirelessly.

[0056] 1 to 3, only control lines and information lines that are considered necessary for explanation are shown, and not all control lines and information lines in the product are shown. In reality, it can be considered that almost all components are connected to each other. Furthermore, the process flows shown in the flowcharts of FIGS. 4 and 5 are also examples, and so long as the process results are the same, the order of some processes may be changed or multiple processes may be executed simultaneously.

[0057] Furthermore, when the car terminal 20 and elevator control device 100 described in this embodiment are configured as an information processing device such as a computer, the programs that realize each processing function may be prepared in non-volatile storage or memory within the computer device, or may be stored and transferred on a recording medium such as an external memory, an IC card, an SD card, or an optical disk. [Explanation of symbols]

[0058] 10...car, 11...door, 12...in-car camera, 13...image management unit, 14...in-car display unit, 15...operation status detection unit, 16...operation execution unit, 20...car terminal, 20a...CPU, 20b...memory, 20c...storage, 20d...image input / output unit, 20e...data input / output unit, 20f...network interface, 21...image analysis processing unit, 22...image analysis result management unit, 23...image analysis result transmission unit, 31...call button, 33, 33-1, 33-2...landing display unit, 100...elevator control device, 101...operation status detection unit output unit, 111... elevator control processing unit, 112... operation state acquisition unit, 113... operation state determination unit, 114... door opening state acquisition unit, 115... door opening state determination unit, 116... elevator state management unit, 121... elevator display management unit, 122... elevator display update unit, 152... operation state detection unit, 200... external linkage device, 201... data management unit, 202... data distribution unit, 210... first external system (people flow detection device), 220... second external system (image management device), 230... third external system (maintenance data management device)

Claims

1. An elevator control system in which a car terminal installed in a car is communicatively connected to an elevator control device via wired or wireless communication, and data obtained by the car terminal is transmitted to the elevator control device or an external device, The car terminal includes: A car in-car management unit that acquires and manages data on the state of the car; a car in-transmitting unit that transmits state data managed by the car in-management unit to the elevator control device or the external device, The elevator control device includes: An elevator status management unit that acquires a determination result of an operating status of the elevator car and transmits the acquired determination result to the elevator car terminal, The car terminal receives data on the operation state from the elevator state management unit, and after determining that the door closing of the car has been completed, transmits the data managed by the car in-management unit from the car in-transmission unit to the elevator control device or the external device. Elevator control system.

2. The car interior management unit determines the number of passengers getting on and off at the corresponding stop floor before the door of the car is completely closed, The car internal transmission unit transmits the determined number of passengers getting on and off at a timing when completion of closing of the car door is detected, Furthermore, the car interior management unit determines the number of passengers in the car when the door closure in the car is completed, The car internal transmission unit transmits the determined number of passengers at the timing when the car starts moving.

2. The elevator control system of claim 1.

3. The elevator control device receives the number of passengers getting on and off and the number of passengers riding on the train transmitted by the in-car transmission unit, and updates the elevator congestion degree display on the landing display unit based on at least one of the received number of passengers getting on and off and the number of passengers riding on the train.

3. The elevator control system of claim 2.

4. Furthermore, the elevator control device updates the elevator congestion degree display on the landing display unit when detecting a car call registration in the car or at the landing.

4. The elevator control system of claim 3.

5. The car terminal includes an image analysis processing unit that analyzes an image captured by a camera installed in the car, The image analysis processing unit determines the number of passengers getting on and off the elevator and the number of passengers.

3. The elevator control system of claim 2.

6. When the car terminal does not receive the image captured by the camera for a first time period or more, the car terminal transmits data on an equipment abnormality from the car internal transmission unit to the elevator control device or the external device.

6. The elevator control system of claim 5.

7. When the car terminal does not receive data on an operation state and a door open state from the elevator state management unit for a second time period or longer, the car terminal transmits data on a communication abnormality from the car in-transmitting unit to the elevator control device or the external device.

3. The elevator control system of claim 2.

8. An elevator control method in which a car terminal installed in a car and an elevator control device, each of which is configured by a computer, are connected to each other via wired or wireless communication, and data obtained by the car terminal is transmitted to the elevator control device or an external device, The computer as the car terminal includes: A car interior management process for acquiring and managing data on the state of the car; a car in-transmission process for transmitting status data obtained by the car in-transmission process to the elevator control device or the external device; The computer as the elevator control device includes: execute an elevator status management process to acquire a determination result of the operating status of the elevator car and transmit the acquired determination result to the elevator car terminal; Furthermore, the computer as the car terminal receives data on the operation state from the elevator control device, and after determining that the door of the elevator car has been closed, transmits the data managed by the car in-transmission process to the elevator control device or the external device by the car in-transmission process. Elevator control method.

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