Elevator monitoring device, elevator monitoring system

Abstract

When considering scenarios where the amount of data per unit time increases rapidly, such as when the elevator car is in motion and sensor data changes moment by moment in a short period of time, it was not possible to adopt a communication standard with low communication capacity and low power consumption between the monitoring unit and the relay device. [Solution] The elevator monitoring device comprises a sensor management device that reads sensor values ​​from sensors installed in the elevator car, and a communication function device that can communicate wirelessly with the sensor management device. The sensor management device has a data analysis unit that analyzes sensor values ​​and generates analysis data, a state determination unit that determines the state of the elevator car from the analysis data and generates state determination data, and a wireless transmission unit that wirelessly transmits the state determination data using a first communication method. The communication function device has a wireless receiving unit that receives the state determination data transmitted from the wireless transmission unit, and a network transmission unit that transmits the state determination data using a second communication method.

Description

Technical Field

[0001] The present disclosure relates to an elevator monitoring device and an elevator monitoring system.

Background Art

[0002] There is an elevator monitoring device that performs external shape monitoring using sensors installed in an elevator car and has a function of wirelessly communicating with a center device via a mobile phone communication network or a WiFi (registered trademark) communication network. In this case, in a place where the radio wave environment deteriorates, such as the lower part of a hoistway like a basement floor, even if the elevator monitoring device detects the state of the car, there is a problem that communication with the center device cannot be established.

[0003] To solve this problem, in Patent Document 1, a monitoring unit installed in the car transmits information from a camera image and various sensors to a relay device by radio waves, and the relay device transmits this information to a transceiver of an elevator monitoring center.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] In the monitoring unit of Patent Document 1, the image is compressed and transmitted, but the information from various sensors is transmitted as it is. However, assuming a case where the data volume per unit time increases, such as when the car is running and the sensor data changes moment by moment in a short time, a communication standard with a small communication capacity and low power consumption could not be adopted between the monitoring unit and the relay device.

[0006] This disclosure was made to solve the aforementioned problems, and aims to enable the adoption of communication standards with low communication capacity and low power consumption by analyzing and / or compressing data obtained from various sensors to reduce the amount of data transmitted. [Means for solving the problem]

[0007] The elevator monitoring device of this disclosure comprises a sensor management device that reads sensor values ​​from a sensor installed in the elevator car, and a communication function device that can communicate wirelessly with the sensor management device. The sensor management device includes a data analysis unit that analyzes sensor values ​​and generates analysis data, a state determination unit that determines the state of the elevator car from the analysis data and generates state determination data, and a wireless transmission unit that wirelessly transmits the state determination data using a first communication method. The communication function device includes a wireless receiving unit that receives the state determination data transmitted from the wireless transmission unit, and a network transmission unit that transmits the state determination data using a second communication method. [Effects of the Invention]

[0008] According to this disclosure, the amount of data transmitted and received between the sensor management device and the communication function device can be reduced, enabling low-power communication. This makes it possible to provide a more affordable elevator monitoring system. [Brief explanation of the drawing]

[0009] [Figure 1] This diagram shows the schematic configuration of the elevator in Embodiment 1. [Figure 2] This is a schematic diagram of the elevator monitoring system in Embodiment 1. [Figure 3] This is a diagram showing the configuration of the equipment in the elevator monitoring system according to Embodiment 1. [Figure 4] This is a flowchart illustrating the operation of the sensor management device in Embodiment 1. [Figure 5] This figure shows a specific example of the sensor value acquisition unit in Embodiment 1. [Figure 6]This is a diagram showing a specific example of the data analysis unit in Embodiment 1. [Figure 7] This is a flowchart showing the processing in the time-series acceleration data analysis unit in Embodiment 1. [Figure 8] This is a diagram showing a specific example of the state determination unit in Embodiment 1. [Figure 9] This is a flowchart showing the operation of the communication function device in Embodiment 1. [Figure 10] This is a flowchart showing the operation of the center device in Embodiment 1. [Figure 11] This is a diagram showing an example of the hardware resources of the sensor management device in Embodiment 1. [Figure 12] This is a diagram showing another example of the hardware resources of the sensor management device in Embodiment 1. [Figure 13] This is a diagram showing an example of the hardware resources of the communication function device in Embodiment 1. [Figure 14] This is a diagram showing another example of the hardware resources of the communication function device in Embodiment 1. [Figure 15] This is a configuration diagram of the devices of the elevator monitoring system in Embodiment 2. [Figure 16] This is a configuration diagram of the devices of the elevator monitoring system in Embodiment 3. [Figure 17] This is a configuration diagram of the devices of the elevator monitoring system in Embodiment 4. [Figure 18] This is a configuration diagram of the devices of the elevator monitoring system in Embodiment 5.

Embodiments for Carrying out the Invention

[0010] Embodiments for carrying out the present disclosure will be described with reference to the accompanying drawings. In each figure, the same or corresponding parts are denoted by the same reference numerals, and redundant descriptions are appropriately simplified or omitted.

[0011] Embodiment 1. FIG. 1 is a diagram showing the schematic configuration of an elevator, FIG. 2 is a schematic diagram of an elevator monitoring system, and FIG. 3 is a configuration diagram of the devices of the elevator monitoring system.

[0012] The elevator car 1 is installed in the hoistway 2 provided in the building. The car 1 moves between multiple floors within the hoistway 2.

[0013] Above the hoistway 2 directly, a machine room 3 is provided. In the machine room 3, a hoisting machine 4, a hoisting machine control panel 5, a compensating sheave 6, and an elevator control device 7 are provided.

[0014] The car 1 and the counterweight 8 are respectively connected to both ends of a rope 9. The rope 9 is hung on the hoisting machine 4 and the compensating sheave 6, and the car 1 and the counterweight 8 are in a suspended state.

[0015] In this elevator, the hoisting machine control panel 5 controls the rotation and stop of the hoisting machine 4 to make the car 1 installed in the hoistway 2 travel upward or downward.

[0016] On each floor, a landing 12 is arranged in front of the landing door 11 for boarding the elevator. When the car 1 arrives at each floor and the car door 10 is opened by the drive motor, the landing door 11 also opens in conjunction, enabling the users in the landing 12 to board the car 1.

[0017] A landing control device 13 is installed in each landing 12. This landing control device 13 has an operation button for calling the car 1, a display panel showing the operation information of the car 1, etc. Also, the landing control device 13 is connected to the elevator control device 7 by a communication line 14 and can transmit and receive information to and from each other.

[0018] The sensor management device 100 of the elevator monitoring system 15 is located at the top of the elevator car 1. The communication function device 200 of the elevator monitoring system 15 is located in the machine room 3. The sensor management device 100 is externally mounted to the elevator car 1 and is connected by cables to various sensors 400 located inside the elevator car 1. This external mounting means that it is installed separately from those that are standardly installed in the elevator car 1. For example, this applies to cases where a new sensor with a new function is installed in an older elevator. It also applies to cases where a new sensor with a new function is installed in an elevator from another company if the information obtained from the sensors already installed as standard cannot be analyzed. Examples of sensors 400 include acceleration sensors, pressure sensors, door opening / closing sensors, and motion sensors.

[0019] The elevator monitoring system mainly consists of an elevator monitoring device 15, which comprises a sensor management device 100 and a communication function device 200, and a central device 300. The sensor management device 100 and the communication function device 200 communicate wirelessly, using a communication method that conforms to the BLE (Bluetooth Low Energy, "Bluetooth" is a registered trademark) communication standard. BLE communication is a communication protocol designed to achieve low power consumption, and the data transfer capacity is kept small. In this case, this is the first communication method.

[0020] Furthermore, information is transmitted and received between the communication function device 200 and the central device 300 via the communication network 500. This communication network 500 includes mobile phone communication networks and Wi-Fi communication networks. In this context, this is the second communication method.

[0021] The block diagram in Figure 3(a) shows the configuration of the sensor management device 100. Figure 4 is a flowchart showing the operation of the sensor management device 100.

[0022] The sensor management device 100 includes a sensor value acquisition unit 101, a data analysis unit 102, a state determination unit 103, a data compression unit 104, a wireless transmission unit 105, and a wireless reception unit (not shown).

[0023] The sensor value acquisition unit 101 acquires sensor values ​​from various sensors 400 (step S001).

[0024] Figure 5 shows a specific example of the sensor value acquisition unit 101, in which an acceleration sensor 400a and a door opening / closing sensor 400b are installed inside the elevator car 1. The sensor value acquisition unit 101 includes an acceleration sensor value reading unit 101a, an acceleration sensor value storage unit 101b, a door opening / closing sensor value reading unit 101c, and a door opening / closing sensor value storage unit 101d.

[0025] The acceleration sensor 400a is installed on the wall of the elevator car 1 and measures the acceleration of the elevator car 1 as it moves up and down. The door opening / closing sensor 400b is installed on the elevator car door 10 and measures the degree to which the door is open. The measured value is zero when the door is closed and increases as it opens.

[0026] The acceleration sensor value reading unit 101a reads acceleration values ​​from the acceleration sensor 400a at regular time intervals and stores them sequentially in the acceleration sensor value storage unit 101b. Therefore, the acceleration sensor value storage unit 101b stores acceleration values ​​as time-series data.

[0027] Similarly, the door opening / closing sensor value reading unit 101c reads the opening degree value of the car door 10 from the door opening / closing sensor 400b at regular intervals and stores it sequentially in the door opening / closing sensor value storage unit 101d. Therefore, the opening degree values ​​are stored as time-series data in the door opening / closing sensor value storage unit 101d.

[0028] The data analysis unit 102 analyzes the values ​​acquired by the sensor value acquisition unit 101 and generates analysis data (step S002).

[0029] Figure 6 shows a specific example of the data analysis unit 102, which includes a time-series acceleration data analysis unit 102a, a car position storage unit 102b, a car speed storage unit 102c, a travel direction storage unit 102d, an acceleration feature point storage unit 102e, a time-series door opening / closing data analysis unit 102f, and a door opening / closing state storage unit 102g.

[0030] The time-series acceleration data analysis unit 102a reads and analyzes the time-series acceleration data stored in the acceleration sensor value storage unit 101b. It then obtains the position data, speed data, travel direction data, and characteristic point data of acceleration changes for the elevator car 1, and stores them in the elevator car position storage unit 102b, elevator car speed storage unit 102c, travel direction storage unit 102d, and acceleration characteristic point storage unit 102e.

[0031] Figure 7 is a flowchart showing the processing performed by the time-series acceleration data analysis unit 102a. First, the time-series data of acceleration stored in the acceleration sensor value storage unit 101b is read out, and the acceleration function F(a) is derived (step S101). Next, characteristic points of the change in the acceleration function F(a) are extracted (step S102). This characteristic point data of the change in acceleration includes change data when a predetermined amount of acceleration change is exceeded, such as in the case of a sudden stop, or when a predetermined amount of lateral acceleration change is exceeded, such as in the case of abnormal vibration of the elevator car. In such cases where the change in acceleration data greatly exceeds a predetermined value, a characteristic point is found in step S102, and this characteristic point is stored in the acceleration characteristic point storage unit 102e (step S103).

[0032] Next, the acceleration function F(a) is integrated to derive the velocity function F(v), which is then stored in the elevator car velocity memory unit 102c (step S104).

[0033] Next, it is determined whether the velocity function F(v) is 0 (step S105). If it is 0 in step S105, it means that the elevator car 1 is stopped, so "Stop" is stored in the travel direction memory unit 102d (step S107). If it is not 0 in step S105, it is determined whether the value F(a) at the time when F(v) most recently changed from 0 is greater than or less than 0 (step S106). If it is determined in step S106 that it is less than 0, "Down" is stored in the travel direction memory unit 102d (step S108), and if it is determined that it is greater than 0, "Up" is stored in the travel direction memory unit 102d (step S109).

[0034] Next, the velocity function F(v) is integrated to derive the position function F(x), and the position of the elevator car is stored in the elevator car position memory unit 102b (step S110). This position is a value representing a floor level, or a value representing the distance between floor levels.

[0035] Furthermore, the time-series door opening / closing data analysis unit 102f acquires and analyzes the time-series data of the opening degree stored in the door opening / closing sensor value storage unit 101d. It then determines whether the door is open or closed and stores the door opening / closing data in the door opening / closing state storage unit 102g.

[0036] Generally, when externally monitoring moving objects such as elevators, it is necessary to read values ​​from sensors at short time intervals, resulting in an increase in the amount of time-series data stored. However, when using communication standards with small data transfer capacities, such as BLE communication, it is necessary to reduce the amount of data transmitted. Therefore, the data analysis unit 102 is working to reduce the amount of data.

[0037] In other words, here, the car position is defined as the floor value or the value indicating the distance between floors. The car speed does not change when the car is stopped or traveling at a constant speed, so the values ​​during these periods are omitted. The direction of travel is summarized into three values: stopped, up, and down. Acceleration feature points are extracted only in special cases, such as when the acceleration change exceeds a predetermined amount, such as in the case of a sudden stop, or when the lateral acceleration change exceeds a predetermined amount, such as in the case of abnormal vibration of the car. The door open / closed state is summarized into two values: door open and door closed.

[0038] In this way, the total data capacity stored in the elevator car position storage unit 102b, elevator car speed storage unit 102c, travel direction storage unit 102d, acceleration feature point storage unit 102e, and door open / closed state storage unit 102g can be significantly reduced compared to the data capacity stored in the acceleration sensor value storage unit 101b and the door open / closed sensor value storage unit 101d.

[0039] The state determination unit 103 determines the state of the elevator car 1 from the data analyzed by the data analysis unit 102 and generates state determination data (step S003).

[0040] Figure 8 shows a specific example of the state determination unit 103, which includes a door open state travel determination unit 103a, a door open state travel detection storage unit 103b, an abnormal stop determination unit 103c, an abnormal stop detection storage unit 103d, an abnormal vibration determination unit 103e, an abnormal vibration detection storage unit 103f, a floor-to-floor stop determination unit 103g, a floor-to-floor stop detection storage unit 103h, and a model-specific determination criterion storage unit 103i.

[0041] The door open state travel determination unit 103a, abnormal stop determination unit 103c, abnormal vibration determination unit 103e, and floor-to-floor stop determination unit 103g retrieve the corresponding standard value from the standard criteria pre-stored in the standard criteria storage unit 103i for each model. Then, the system determines the state by appropriately comparing it with the values ​​of the car position, car speed, travel direction, acceleration feature points, and door open / closed state stored in the car position storage unit 102b, car speed storage unit 102c, travel direction storage unit 102d, acceleration feature point storage unit 102e, and door open / closed state storage unit 102g.

[0042] The door-open state travel determination unit 103a acquires values ​​for the elevator car position, elevator car speed, travel direction, and door open / closed state, and determines, according to the determination criteria for each model, at what position the elevator car traveled with its doors open. Then, it stores the data indicating that the elevator car traveled with its doors open in the door-open state travel detection storage unit 103b.

[0043] The abnormal stop determination unit 103c acquires the elevator car position, elevator car speed, and acceleration feature point values, and determines at what position the elevator car made an abnormal stop according to the determination criteria for each model. Then, it stores the abnormal stop data in the abnormal stop detection storage unit 103d.

[0044] The abnormal vibration determination unit 103e acquires the elevator car position and acceleration feature point values, and determines at what location the abnormal vibration occurred in the elevator car according to the determination criteria for each model. Then, it stores the abnormal vibration data in the abnormal vibration detection storage unit 103f.

[0045] The inter-floor stop determination unit 103g acquires the values ​​of the elevator car position and elevator car speed, and determines the position at which the elevator stopped between floors according to the determination criteria for each model. Then, it stores the data of the inter-floor stop in the inter-floor stop detection storage unit 103h.

[0046] Even in cases where it is not possible to determine if elevator car 1 is operating under normal conditions, as is the case in this specific example, the number of patterns indicating the state is limited, such as doors open and stopped and stopping at a floor, doors closed and stopped and stopping at a floor, moving upwards, moving downwards, etc., so the data capacity is reduced.

[0047] The data compression unit 104 compresses the state determination data generated by the state determination unit 103 (step S004). Specifically, if data is stored in the door open state travel detection storage unit 103b, the abnormal stop detection storage unit 103d, the abnormal vibration detection storage unit 103f, or the floor-to-floor stop detection storage unit 103h, that data is compressed.

[0048] The wireless transmission unit 105 transmits the data compressed by the data compression unit 104 to the communication function device 200 via BLE communication (step S005).

[0049] The block diagram in Figure 3(b) shows the configuration of the communication device 200. Figure 9 is a flowchart showing the operation of the communication device 200. The communication device 200 includes a wireless receiver 201, a network transmitter 202, a wireless transmitter (not shown), and a network receiver (not shown).

[0050] The wireless receiver 201 receives compressed data transmitted via BLE communication from the sensor management device 100 (step S201). Next, the network transmission unit 202 converts the data from the BLE communication format to a network communication format, such as the format of a mobile phone network or a Wi-Fi network (step S202). After that, the data is transmitted from the network transmission unit 202 to the central device 300 (step S203).

[0051] The block diagram in Figure 3(c) shows the configuration of the central device 300. Figure 10 is a flowchart showing the operation of the central device 300. The central device 300 includes a network receiving unit 301, a data restoration unit 302, a status monitoring unit 303, and a network transmission unit (not shown).

[0052] The network receiving unit 301 receives compressed data transmitted from the communication function device 200 (step S301). Next, the data restoration unit 302 restores the compressed data and returns it to its original form. This data is the same as the data stored in the door open state travel detection storage unit 103b, the abnormal stop detection storage unit 103d, the abnormal vibration detection storage unit 103f, and the floor-to-floor stop detection storage unit 103h. The status monitoring unit 303 processes this data and displays it on a monitor so that the operator of the center device 300 can monitor the status.

[0053] Thus, in the elevator monitoring system of Embodiment 1, the amount of data transmitted and received between the sensor management device 100 and the communication function device 200 can be reduced, enabling low-power communication such as BLE communication. This makes it possible to provide a more affordable elevator monitoring device. Furthermore, since the communication function device 200 transmits the compressed state determination data to the central device 300, the amount of data transmitted to the mobile phone network or WiFi network can be reduced, thereby lowering communication costs.

[0054] Alternatively, the functions of the wireless transmission unit and wireless reception unit may be combined into a wireless communication unit, and the functions of the network transmission unit and network reception unit may be combined into a network communication unit.

[0055] Furthermore, wireless communication between the communication function device and the sensor management device may also be performed using a low-power, low-data-transfer-capacity communication method other than BLE communication.

[0056] Furthermore, if the status determination data is sufficiently small, it may be transmitted directly from the wireless transmission unit 105 without compression.

[0057] Furthermore, in elevators without a machine room, the communication device 200 may be installed in the hoistway.

[0058] Figure 11 shows an example of the hardware resources of the sensor management device 100. The sensor management device 100 has a processor 110, memory 111, and a transmitting / receiving circuit 112 as hardware resources. Note that there may be multiple processors 110, memory 111, and transmitting / receiving circuits 112.

[0059] Each of the storage units shown in Figures 5, 6, and 8 is handled by memory 111. Memory 111 also stores programs, which are read as needed and executed by the processor 110 to perform functions such as reading, analysis, judgment, and compression. The wireless transmission unit 105 is handled by the transmit / receive circuit 112.

[0060] The processor 110 is also called a CPU (Central Processing Unit), central processing unit, arithmetic unit, microprocessor, microcomputer, or DSP. The memory 111 may be a semiconductor memory, magnetic disk, flexible disk, optical disk, compact disk, minidisc, or DVD. Possible semiconductor memories include RAM, ROM, flash memory, EPROM, and EEPROM.

[0061] Figure 12 shows another example of the hardware resources of the sensor management device 100. In the example in Figure 12, the sensor management device 100 includes a processor 110, memory 111, a transmit / receive circuit 112, and a processing circuit including dedicated hardware 113. Some of the functions of the sensor management device 100 are realized by the dedicated hardware 113. Alternatively, all of the functions of the sensor management device 100 may be realized by the dedicated hardware 113. The dedicated hardware 113 can be a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, an ASIC, an FPGA, or a combination thereof.

[0062] Figure 13 shows an example of the hardware resources of the communication function device 200. The communication function device 200 has a processor 210, memory 211, and a transmit / receive circuit 212 as hardware resources. Note that there may be multiple processors 210, memory 211, and transmit / receive circuits 212.

[0063] Memory 211 is responsible for processing data storage during transmission and reception. It also stores programs, which are read as needed and executed by the processor 210 to perform functions such as communication format conversion. The transmission and reception circuit 212 handles data reception and transmission.

[0064] Figure 14 shows another example of the hardware resources of the communication function device 200. In the example in Figure 14, the communication function device 200 includes a processor 210, memory 211, a transmitting / receiving circuit 212, and a processing circuit including dedicated hardware 213. Some of the functions of the communication function device 200 are realized by the dedicated hardware 213. Alternatively, all of the functions of the communication function device 200 may be realized by the dedicated hardware 213.

[0065] Embodiment 2. Figure 15 is a diagram showing the configuration of the equipment in the elevator monitoring system in Embodiment 2. In Figure 15, the compression of the compressed data compressed by the sensor management device 100 is performed by the communication function device 200, rather than by the central device 300 in Figure 3.

[0066] In Figure 15(b), the wireless receiver 201 receives compressed data transmitted via BLE communication from the sensor management device 100. Next, the data restoration unit 203 restores the compressed data, returning it to its original form. The network transmission unit 202 then formats this data for use with mobile phone networks, WiFi networks, etc., and transmits it to the central device 300.

[0067] Multiple elevator monitoring devices 15 are connected to the central device 300. It is assumed that the elevator monitoring devices 15 may transmit compressed data or uncompressed data. In this case, the network receiving unit 301 would need to identify whether the data is compressed or not, complicating the processing. However, by uniformly transmitting only uncompressed data to the central device 300, the processing burden can be reduced.

[0068] Embodiment 3. Figure 16 is a diagram showing the configuration of the equipment in the elevator monitoring system in Embodiment 3. In Figure 16, the analysis of data acquired from the sensors and the determination of the state are performed by the communication function device 200, rather than the sensor management device 100 in Figure 15.

[0069] In Figure 16(a), the data acquired by the sensor value acquisition unit 101 is compressed by the data compression unit 104 and transmitted via BLE communication from the wireless transmission unit 105.

[0070] Furthermore, in Figure 16(b), the communication function device 200 analyzes the original data restored by the data restoration unit 203 in the data analysis unit 204, and determines its state in the state determination unit 205.

[0071] If the data acquired by the sensor 400 is not large, it can be compressed to reduce the amount of data that can be transmitted via BLE. In addition, by having the communication function device 200 perform relatively complex data analysis and state determination processing, the sensor management device 100 can be made simpler and its weight reduced. Reducing the weight of the sensor management device 100, which is placed in the elevator car 1, reduces the load on the hoisting machine 4.

[0072] Embodiment 4. Figure 17 is a diagram showing the configuration of the elevator monitoring system equipment in Embodiment 4. In Figure 17, the analysis of data acquired from the sensors in Figure 3 and the determination of the state are performed by the central device 300, rather than the sensor management device 100.

[0073] In Figure 17(a), the data acquired by the sensor value acquisition unit 101 is compressed by the data compression unit 104 and transmitted via BLE communication from the wireless transmission unit 105.

[0074] Furthermore, in Figure 17(c), the central device 300 analyzes the original data restored by the data restoration unit 302 in the data analysis unit 304, and determines its state in the state determination unit 305.

[0075] If the data acquired by the sensor 400 is not large, it can be compressed to reduce the amount of data that can be transmitted via BLE. In addition, by having the central device 300 perform relatively complex data analysis and state determination processing, the sensor management device 100 can be made simpler and its weight reduced. Reducing the weight of the sensor management device 100, which is placed in the elevator car 1, reduces the load on the hoisting machine 4.

[0076] Furthermore, when it is necessary to implement various different analysis and judgment methods depending on the characteristics of each elevator model, the sensor management device 100 and communication function device 200 can be made model-independent, thereby reducing the effort required for managing and operating the equipment installed in the elevator. This makes it possible to provide a more affordable elevator monitoring system.

[0077] Embodiment 5. Figure 18 is a diagram showing the configuration of the equipment in the elevator monitoring system in Embodiment 5. In Figure 18, the data recovery from the central device 300 in Figure 17 is performed by the communication function device 200.

[0078] In Figure 18(b), the wireless receiver 201 receives compressed data transmitted via BLE communication from the sensor management device 100. Next, the data restoration unit 203 restores the compressed data, returning it to its original form. The network transmission unit 202 then formats this data for use with mobile phone networks, WiFi networks, etc., and transmits it to the central device 300.

[0079] This allows for a simpler configuration of the sensor management device 100 and reduces its weight. Reducing the weight of the sensor management device 100, which is located in the elevator car 1, reduces the load on the hoisting machine 4.

[0080] Furthermore, by uniformly sending only uncompressed data to the central device 300, the processing load can be reduced.

[0081] Although preferred embodiments have been described in detail above, the invention is not limited to these embodiments, and various modifications and substitutions can be made to the embodiments described above without departing from the scope of disclosure.

[0082] Furthermore, when referring to the number, quantity, amount, range, etc., of each element in the embodiments, the apparatus of this disclosure is not limited to the referred number unless specifically stated or clearly defined in principle. Also, the structures, etc., described in these embodiments are not necessarily essential unless specifically stated or clearly defined in principle. [Explanation of Symbols]

[0083] 1 elevator car, 2 hoistway, 3 machine room, 4 hoisting machine, 5 hoisting machine control panel 5, 6. Deviating vehicle, 7. Elevator control device 7, 8. Counterweight, 9 Rope, 11 Landing door, 12 Landing, 13 Landing control device, 14 Communication line, 15 Elevator monitoring device, 100 Sensor management device, 101 Sensor value acquisition unit, 101a Accelerometer value reading unit, 101b Accelerometer value storage unit, 101c Door opening / closing sensor value reading unit, 101d Door opening / closing sensor value storage unit, 102 Data Analysis Unit, 102a Time Series Acceleration Data Analysis Unit, 102b Car position memory unit, 102c Car speed memory unit, 102d Travel direction memory unit, 102e Acceleration feature point memory unit, 102f Time-series door opening / closing data analysis unit, 102g Door opening / closing state storage unit, 103 State determination unit, 103a Door open state running determination unit, 103b Door open state travel detection and storage unit, 103c Abnormal stop determination unit, 103d Abnormal stop detection storage unit, 103e Abnormal vibration determination unit, 103f Abnormal vibration detection and storage unit, 103g Floor-to-floor stop determination unit, 103h Floor-to-floor stop detection memory unit, 103i Model-specific judgment criterion memory unit 104 Data compression unit, 105 Wireless transmission unit, 110 Processor, 111 Memory, 112 Transceiver Circuit, 113 Dedicated hardware, 200 Communication function device, 201 Wireless receiving unit, 202 Network transmitting unit, 203 Data recovery unit, 204 Data analysis unit, 205 State determination unit, 210 Processor, 211 Memory, 212 Transceiver Circuit, 213 Dedicated hardware, 300 Center unit, 301 Network receiving unit, 302 Data recovery unit, 303 Status monitoring unit, 304 Data analysis unit, 305 Status determination unit, 400 Sensor, 500 communication networks

Claims

1. An elevator monitoring system comprising a sensor management device that reads sensor values ​​from sensors installed in an elevator car, and a communication function device that can communicate wirelessly with the sensor management device, The sensor management device includes a data analysis unit that analyzes the sensor values ​​and generates analysis data, a state determination unit that determines the state of the elevator car from the analysis data and generates state determination data, and a wireless transmission unit that wirelessly transmits the state determination data using a first communication method. The elevator monitoring device is characterized in that the communication function device includes a wireless receiving unit that receives the status determination data transmitted from the wireless transmitting unit, and a network transmitting unit that transmits the status determination data using a second communication method.

2. The elevator monitoring device according to claim 1, wherein the sensor management device has a data compression unit for compressing the state determination data, and the wireless transmission unit transmits the compressed state determination data.

3. The elevator monitoring device according to claim 2, characterized in that the network transmission unit transmits the compressed state determination data.

4. The elevator monitoring device according to claim 2, wherein the communication function device has a data restoration unit for restoring the compressed state determination data, and the network transmission unit transmits the restored state determination data.

5. An elevator monitoring system comprising a sensor management device that reads sensor values ​​from sensors installed in an elevator car, and a communication function device that can communicate wirelessly with the sensor management device, The sensor management device includes a data compression unit that compresses the sensor values ​​and a wireless transmission unit that wirelessly transmits the compressed sensor values ​​using a first communication method. The elevator monitoring device is characterized by comprising: a wireless receiving unit that receives the compressed sensor values ​​transmitted from the wireless transmitting unit; a data restoration unit that restores the compressed sensor values; a data analysis unit that analyzes the restored sensor values ​​and generates analysis data; a state determination unit that determines the state of the elevator car from the analysis data and generates state determination data; and a network transmitting unit that transmits the state determination data using a second communication method.

6. The sensors include an acceleration sensor for measuring the acceleration of the elevator car and a door opening / closing sensor for measuring the degree of opening of the elevator car door. The analysis data includes at least one of the following: the position data of the elevator car, the speed data of the elevator car, the direction of travel data of the elevator car, the change in acceleration data of the elevator car, and the opening and closing data of the elevator car doors. The elevator monitoring device according to any one of claims 1 to 5, characterized in that the state determination data is at least one of data indicating that the elevator car was traveling with its doors open, data indicating that the elevator car had stopped abnormally, data indicating that the elevator car had vibrated abnormally, and data indicating that the elevator car had stopped between floors.

7. An elevator monitoring system comprising a sensor management device that reads sensor values ​​from sensors installed in an elevator car, a communication function device that can communicate wirelessly with the sensor management device, and a central device that can communicate with the communication function device via a communication network, The sensor management device includes a data compression unit that compresses the sensor values ​​and a wireless transmission unit that wirelessly transmits the compressed sensor values ​​using a first communication method. The communication device includes a wireless receiving unit that receives the compressed sensor value transmitted from the wireless transmitting unit, and a network transmitting unit that transmits the compressed sensor value using a second communication method. The elevator monitoring system is characterized in that the center device includes a network receiving unit that receives the compressed sensor values ​​transmitted from the network transmitting unit, a data restoration unit that restores the compressed sensor values, a data analysis unit that analyzes the restored sensor values ​​and generates analysis data, and a state determination unit that determines the state of the elevator car from the analysis data and generates state determination data.

8. An elevator monitoring system comprising a sensor management device that reads sensor values ​​from sensors installed in an elevator car, a communication function device that can communicate wirelessly with the sensor management device, and a central device that can communicate with the communication function device via a communication network, The sensor management device includes a data compression unit that compresses the sensor values ​​and a wireless transmission unit that wirelessly transmits the compressed sensor values ​​using a first communication method. The communication device includes a wireless receiving unit that receives the compressed sensor values ​​transmitted from the wireless transmitting unit, a data restoration unit that restores the compressed sensor values, and a network transmitting unit that transmits the restored sensor values ​​using a second communication method. The center device includes a network receiving unit that receives the sensor values ​​transmitted from the network transmitting unit, a data analysis unit that analyzes the sensor values ​​and generates analysis data, and a state determination unit that determines the state of the elevator car from the analysis data and generates state determination data. An elevator monitoring system characterized by the following features.

9. The sensors include an acceleration sensor for measuring the acceleration of the elevator car and a door opening / closing sensor for measuring the degree of opening of the elevator car door. The analysis data includes at least one of the following: the position data of the elevator car, the speed data of the elevator car, the direction of travel data of the elevator car, the change in acceleration data of the elevator car, and the opening and closing data of the elevator car doors. The elevator monitoring device system according to claim 7 or 8, characterized in that the state determination data is at least one of the data of the elevator car traveling with its doors open, the elevator car making an abnormal stop, the elevator car vibrating abnormally, and the elevator car stopping between floors.

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