JP7158353B2 - Elevator car condition monitoring system - Google Patents

Description

The present invention relates to an elevator car condition monitoring system.

Conventionally, the presence or absence of passengers in a car has been detected by a load sensor installed in the car. In addition, the load in the car can be estimated by measuring the load of the hoist (motor) while the car is running. However, in a variable-speed elevator in which the running speed varies depending on the load in the car, the load cannot be accurately estimated from the load.

As a method for detecting the load in the car of a variable speed elevator, the torque command value at the predetermined load of the elevator is first recorded as an initial value, and the deviation between the torque command value and the initial value during subsequent operation is used to detect the load. A method for calculating the load in the car has been proposed (see Patent Document 1, for example).

Japanese Patent Application Laid-Open No. 2012-41100

In the above conventional method, by calculating the load in the car from the deviation between the torque command value and the initial value during operation and controlling the traveling speed, it is possible to reduce the ride comfort when changing the traveling speed due to incorrect detection of the payload. This prevents failures such as a drop in power and sudden stops. However, no consideration is given to the case where the car suddenly stops due to some reason such as an earthquake, and there is no means for detecting the presence or absence of a lingering person or the state inside the car, such as being trapped.

In view of the above situation, it has been desired to detect in detail the conditions inside the car, such as the presence or absence of people staying in the car.

In order to solve the above-described problems, one aspect of the present invention is to provide an elevator car that determines the state of the inside of the car of an elevator that runs at a rated speed when there is no load and runs at a higher speed than when the load is running at a higher speed than when the load is running. The condition monitoring system includes an acceleration detector attached to a car door and detecting acceleration in the opening/closing direction of the car door and acceleration in the running direction of the car, and a car state detector. The car state detection device includes a door opening/closing detection unit that detects the opening and closing motion of the car door from the information detected by the acceleration detection device, and a car running detection unit that detects high-speed running of the car from the information detected by the acceleration detection device. and a car state determination unit that determines the state inside the car based on the detection result of the door opening/closing detection unit and the detection result of the car running detection unit.

According to at least one aspect of the present invention, it is possible to detect in detail the state inside the car, such as a passenger confinement, based on the detection results of the two or more axis acceleration detection device installed on the car door.
Problems, configurations, and effects other than those described above will be clarified by the following description of the embodiments.

BRIEF DESCRIPTION OF THE DRAWINGS It is a whole block diagram which shows the outline of the elevator which concerns on one Embodiment of this invention. It is a schematic diagram which shows attachment of the acceleration detection apparatus which concerns on one Embodiment of this invention. 1 is a block diagram showing the function of each device that constitutes an elevator car condition monitoring system according to an embodiment of the present invention; FIG. FIG. 2 is a block diagram showing a hardware configuration example of a computing device included in each device of the in-car condition monitoring system according to the embodiment of the present invention; 4 is a flow chart showing the operation of the car state detection device of the car state monitoring system according to the embodiment of the present invention; FIG. 4 is a diagram showing an example of car speed displacement of an elevator according to one embodiment of the present invention;

Hereinafter, examples of modes for carrying out the present invention (hereinafter referred to as "embodiments") will be described with reference to the accompanying drawings. In this specification and the accompanying drawings, constituent elements having substantially the same function or configuration are denoted by the same reference numerals, and overlapping descriptions are omitted.

[Elevator]
FIG. 1 is an overall configuration diagram showing an outline of an elevator 10 according to one embodiment. A variable speed elevator is applied to the elevator 10 in this embodiment. In FIG. 1, the first direction (X-axis direction) is the opening/closing direction of the car door 6, the second direction (Y-axis direction) is the lifting direction of the car 2, and the third direction (Z-axis direction) is the The direction is perpendicular to the first direction and the second direction.
FIG. 2 is a schematic diagram showing attachment of the acceleration detection device 20 according to one embodiment. FIG. 2 shows a view of the landing side from inside the car 2 .

As shown in FIG. 1, the elevator 10 includes a car 2 that ascends and descends the hoistway 1, a main rope 4 that connects the car 2 and the counterweight 3, and a hoist 5 around which the main rope 4 is wound. have. By driving the hoist 5, the car 2 and the counterweight 3 are lifted up and down via the main rope 4. - 特許庁A car door 6 is provided in the car 2, and a hatch door 7 on the landing side opens and closes in conjunction with the operation of the car door 6, so that passengers can get on and off the car 2.例文帳に追加An acceleration detection device 20 is installed on the car door 6 as shown in FIG.

The elevator 10, which is a variable speed elevator, varies the traveling speed of the car 2 depending on whether or not there is a load in the car 2. For example, when there is no load in the car 2, the car 2 runs at rated speed. Further, when there is a load in the car 2, the car 2 runs at a speed higher than the rated running speed (high-speed running). Methods of detecting the load include, for example, a method of installing a load sensor under the floor of the car 2 to detect the load, a method of detecting changes in the load (torque) of the motor of the hoist 5, and the like.

A car state detection device 30 is installed in the ceiling space of the car 30 , and an external communication device 60 is installed at a predetermined position on the hoistway 1 . Details of the car state detection device 30, the external reporting device 60, and the acceleration detection device 20 will be described later.

[Elevator car condition monitoring system]
Next, a car condition monitoring system for the elevator 10 according to the present embodiment will be described with reference to FIG.
FIG. 3 is a block diagram showing the function of each device constituting the car condition monitoring system of the elevator 10. As shown in FIG. The car state monitoring system of the elevator 10 includes an acceleration detector 20, a car state detector 30, and an external reporting device 60, as shown in FIG.

[Acceleration detector]
The acceleration detection device 20 measures acceleration and transmits measured value data. Next, the car state detection device 30 receives the measured value data transmitted from the acceleration detection device 20, records the measured value data, detects the state inside the car, and transmits the detection result to the external reporting device 60 through the tail cord 8. Send to The external notification device 60 receives the detection result transmitted from the car state detection device 30, determines the content of the report based on the detection result, and transmits the content of the report to the control center 70 through the public line N.

Next, the acceleration detection device 20 will be described in detail.
The acceleration detection device 20 includes an X acceleration detection section 21 , an X acceleration transmission section 22 , a Y acceleration detection section 23 and a Y acceleration transmission section 24 .

The X acceleration detection unit 21, which is an acceleration sensor in the X-axis direction, is installed on the car door 6 as shown in FIG. Furthermore, the acceleration data measured by the X acceleration detection unit 21 is transmitted to the X acceleration recording unit 41 by the X acceleration transmission unit 22 . Similarly, the Y-acceleration detector 23, which is an acceleration sensor in the Y-axis direction, measures the acceleration of the elevator car 2 in the vertical direction. Furthermore, the acceleration data measured by the Y acceleration detector 23 is transmitted to the Y acceleration recorder 43 by the Y acceleration transmitter 24 .

[Car state detection device]
The cage state detection device 30 will be described in detail.
The car state detection device 30 includes an acceleration recording section 40 and a car state detection section 50 .

The acceleration recorder 40 includes an X acceleration recorder 41 , an X acceleration transmitter 42 , a Y acceleration recorder 43 , and a Y acceleration transmitter 44 . The X acceleration recording unit 41 receives and records measured value data (acceleration data) of acceleration in the X-axis direction (opening/closing direction) transmitted from the acceleration detection device 20 . The X acceleration transmission section 42 transmits the acceleration data recorded in the X acceleration recording section 41 to the car state detection section 50 . Similarly, the Y acceleration recording unit 43 receives and records measurement value data (acceleration data) of acceleration in the Y-axis direction (lifting direction) transmitted from the acceleration detection device 20 . The Y acceleration transmission section 44 transmits the acceleration data recorded in the Y acceleration recording section 43 to the car state detection section 50 .

The car state detection unit 50 includes a door open/close detection unit 51 , a car running detection unit 52 , an emergency stop detection unit 53 , a car state determination unit 54 and a car state transmission unit 55 .

The door opening/closing detection unit 51 detects the opening/closing operation of the door based on the measured value of acceleration in the X-axis direction transmitted from the acceleration recording unit 40 . The car running detection unit 52 detects high-speed running of the car 2 based on the measured value of the acceleration in the Y-axis direction transmitted from the acceleration recording unit 40 . The emergency stop detection unit 53 detects an emergency stop of the car 2 based on the measured value of the acceleration in the Y-axis direction sent from the acceleration recording unit 40 . The car state determination unit 54 determines the state inside the car 2 based on the detection results of the door opening/closing detection unit 51 , the car running detection unit 52 , and the emergency stop detection unit 53 . The car state transmission unit 55 transmits the determination result of the car state determination unit 54 to the external reporting device 60 via the tail code 8 .

The car state determination unit 54 determines the state inside the car 2, such as stagnation, confinement, and unmanned stop. In this specification, "staying" is a state in which a passenger stays in the car 2 for some reason. For example, the lingering person is assumed to be a person who is unable to move due to a sudden illness, a person who stays in the car 2 by himself or the like. "Confined" is a state in which a passenger cannot get out of the car 2 due to elevator failure, an earthquake, or the like.

[External reporting device]
The external reporting device 60 will be described in detail.
The external notification device 60 includes a notification content determination unit 61 and a notification content transmission unit 62 .
The notification content determination unit 61 determines the content of the notification based on the determination result regarding the state inside the car 2 transmitted from the car state detection unit 50 . The report content transmission unit 62 notifies the control center 70 via the public line N of the report content determined by the report content determination unit 61 .

[Hardware configuration of each device]
FIG. 4 is a block diagram showing a hardware configuration example of a computing device 90 included in each device of the in-car condition monitoring system. Each part in the computing device 90 is selected according to the function and purpose of use of each device. Here, a hardware configuration example of the calculation device 90 of the car state detection device 30 and the external reporting device 60 will be described. A personal computer, for example, can be used as the computing device 90 .

The computing device 90 includes a CPU (Central Processing Unit) 91 , a ROM (Read Only Memory) 92 , a RAM (Random Access Memory) 93 , a nonvolatile storage 96 and a communication interface 97 . Each unit in the computing device 90 is connected via a system bus so as to be able to transmit and receive data to and from each other.

The CPU 91, ROM 92, and RAM 93 constitute a control section. This control section is used as an example of a computer that controls the operation of each section of the car state detection device 30 and the external reporting device 60 . The CPU 91 reads from the ROM 92 a program code of software that implements each function according to the present embodiment, executes it, and performs control of each unit and various calculations. Although the CPU 91 is used as the arithmetic processing unit, another processor such as an MPU (Micro Processing Unit) may be used.

The ROM 92 is used as an example of a non-volatile memory (recording medium), and stores programs, data, etc. necessary for the CPU 91 to operate. The RAM 93 is used as an example of a volatile memory, and temporarily stores variables, parameters, and the like generated during arithmetic processing by the CPU 91 .

The nonvolatile storage 96 is an example of a recording medium, and can store programs such as an OS (Operating System), parameters used when executing the programs, data obtained by executing the programs, and the like. be. A program executed by the CPU 91 may be stored in the nonvolatile storage 96 . As the nonvolatile storage 96, a semiconductor memory, a hard disk, an SSD (Solid State Drive), a recording medium using magnetism or light, or the like is used. Note that the program may be provided via a wired or wireless transmission medium such as a local area network (LAN), the Internet, or digital satellite broadcasting.

For the communication interface 97, for example, a NIC (Network Interface Card), a modem, or the like is used. The communication interface 97 is configured to be capable of transmitting and receiving various data to and from an external device via a communication network such as a LAN, the Internet, or the like, or a dedicated line, to which terminals are connected.

The calculation devices 90 installed in the control center 70 and the management room 80 can also have the same configuration. For example, the control center 70 includes a control system server that collects data from local elevators and remotely monitors and controls them online. Also, for example, in the control room 80, a supervisor monitors the elevator 10 in the building using the monitoring server. The control room 80 may be a security room with guards guarding the building.

However, the computing device 90 installed in the control center 70 and the management room 80 may be provided with a display device 94 such as a liquid crystal display and an operating device 95 such as a mouse and keyboard. A display device 94 displays a GUI screen, a result of processing performed by the CPU 91 , and the like, and an operation device 95 generates an input signal according to a user's operation and supplies it to the CPU 91 . The user can input necessary information and instructions through the operation device 95 while confirming the contents displayed on the display device 94 .

Based on the detection result of the acceleration detection device 20 installed in the car door 6 of the elevator 10 having the above configuration, a series of flow for judging the state inside the car 2 will be described with reference to FIGS. 5 and 6. FIG.

Here, as a premise, when the acceleration of the car 2 is first recorded as an initial value, the acceleration is recorded under the conditions of a 0% loading rate (no load) and a 50% loading rate (with a load) in the car 2. Record. Based on the acceleration at a loading rate of 0% and a loading rate of 50%, the car running detection unit 52 performs mathematical processing, and when the calculated speeds are rated running and high speed running as shown in FIG. apply the state determination by the in-car state monitoring system of the elevator 10 according to . It is assumed that the elevator 10 always runs at rated speed when the load factor is 0%. That is, when the loading rate is 0%, the car 2 moves at the rated speed not only when traveling to the destination floor specified by the passenger, but also when traveling to a hall call. In general, an elevator is designed so that the car 2 and the counterweight 3 are balanced when the load rate is 50%, but the pre-registered data is not limited to when the load rate is 50%.

FIG. 6 shows an example of car speed displacement of elevator 10 . The horizontal axis represents time, and the vertical axis represents the running speed of the car. In FIG. 6, the traveling speed _VR at a loading ratio of 50% (with load) is faster than the traveling speed _VR at a loading ratio of 0% (without load). If the running speed _VH with a load is higher than the running speed _VR without a load in a preliminary inspection, it can be determined that the elevator to be inspected is a variable speed elevator. The running speed _VR can also be said to be a threshold value for determining whether or not the elevator is a variable speed elevator.

[Operation of car state detection device]
FIG. 5 is a flow chart showing the operation of the car state detector 30 of the car state monitoring system.
First, the car running detection unit 52 of the car state detection unit 50 detects the running state of the car 2 based on the measurement data of the acceleration in the Y-axis direction transmitted from the acceleration recording unit 40 . Based on the running state of the car 2, the car state determination unit 54 determines whether or not three minutes have passed without a call to the elevator 10 (S1). For example, the time to be measured is the time that has elapsed since the car 2 landed on the floor. If the car 2 does not run for 3 minutes, the car state determination unit 54 determines that there is no call for the elevator 10 for 3 minutes (the car 2 is empty or passengers are staying) (S1 YES), go to step S2. If it is confirmed that the car 2 is running within 3 minutes (NO in S1), the process returns to step S1.

Next, the door opening/closing detection unit 51 detects the opening/closing operation of the car door 6 based on the measurement data of the acceleration in the X-axis direction transmitted from the acceleration recording unit 40 . Then, the car state determination unit 54 determines whether or not the car door 6 is opened/closed (S2). has boarded, and the process proceeds to step S10. On the other hand, if there is no opening/closing operation of the car door 6 (NO in S2), the car state determination unit 54 determines that the elevator 10 has moved to the called floor in response to the passenger's hall call, without any passengers boarding/alighting. transition to

Next, the car running detection unit 52 detects the running state of the car 2 based on the measurement data of the acceleration in the Y-axis direction transmitted from the acceleration recording unit 40 . Then, the car state determination unit 54 determines whether or not the car 2 is running at high speed (that is, the load) based on the detection result of the car running detection unit 52 (S3).

When it is confirmed that the car 2 is traveling at high speed (YES in S3), the car state determination unit 54 determines that there is a passenger in the car 2 and that the car door 6 is not opened or closed in step S2. Since there is no boarding/alighting, it is determined that passengers are staying in the car 2, and the process proceeds to step S4. On the other hand, if it is not confirmed that the car 2 is traveling at high speed (NO in S3), the car state determination unit 54 determines that there is no passenger in the car 2 and that no passengers are boarding or alighting in step S2. , it is determined that the car 2 is running in an unmanned state, and the process proceeds to step S7.

Next, the emergency stop detection unit 53 detects an emergency stop of the car 2 based on the measurement data of the acceleration in the Y-axis direction transmitted from the acceleration recording unit 40 . Then, the car state determination unit 54 determines whether or not the car 2 is in an emergency stop based on the detection result of the emergency stop detection unit 53 (S4). When the emergency stop of the car 2 is confirmed (YES in S4), the car state determination unit 54 determines that the passenger is not staying in the car 2 because the car 2 is traveling at high speed in step S3. Therefore, it is determined that an emergency stop has occurred in the staying state, and the process proceeds to step S5. On the other hand, when the emergency stop of the car 2 is not confirmed (NO in S4), the car state determination unit 54 determines that there is a high possibility that normal operation is being performed in the staying state, and proceeds to step S6. do.

Next, in the case of YES in step S4, the car state determination unit 54 determines that the car door 6 has not been opened or closed (passengers have not gotten on or off) until step S4, and after the car has traveled at high speed (there is a load in the car), an emergency stop has occurred. Therefore, it is determined that there is a high possibility that confinement in the stagnant state has occurred (S5). Then, the car state determination unit 54 transmits the determination result to the report content determination unit 61 of the external reporting device 60 through the car state transmission unit 55 . Based on the detection result from the car state detection unit 50, the report content determination unit 61 determines the content of the report to be "confinement in a staying state". The control center 70 is notified of the content of the report issued by the report content determination unit 61 .

Next, in the case of NO in step S4, the car state determination unit 54 determines that the car door 6 has not been opened or closed (passengers have not gotten on or off) and that the car is running at high speed (with a load inside the car) by step S4. is known, it is determined that there is a high possibility that passengers are staying or that an abnormal speed has occurred (S6). Then, the car state determination unit 54 transmits the determination result to the report content determination unit 61 through the car state transmission unit 55 . Based on the detection result from the car state detection unit 50, the report content determination unit 61 determines the content of the report to be "stationary state or abnormal speed". The control center 70 is notified of the content of the report issued by the report content determination unit 61 .

Next, in the case of NO in step S3, the emergency stop detection unit 53 detects the emergency stop of the car 2, and the car state determination unit 54 detects the emergency of the car 2 based on the detection result of the emergency stop detection unit 53. It is determined whether or not there is a stop (S7). When the emergency stop of the car 2 is confirmed (YES in S7), the car state determination unit 54 determines that the car 2 is running at rated speed in step S3. It is determined that an emergency stop has occurred, and the process proceeds to step S8. On the other hand, when the emergency stop of the car 2 is not confirmed (NO in S7), the car state determination unit 54 determines that there is a high possibility that normal operation is being performed in an unmanned state, and proceeds to step S9. do.

Next, in the case of YES in step S7, the car state determination unit 54 causes an emergency stop to occur after rated running (no load in the car) with no opening/closing operation of the car doors 6 (no passengers getting on or off) until step S7. Therefore, it is determined that an unmanned emergency stop has occurred (S8). Then, the car state determination unit 54 transmits the determination result to the report content determination unit 61 of the external reporting device 60 through the car state transmission unit 55 . Based on the detection result from the car state detection unit 50, the report content determination unit 61 determines the content of the report to be "unattended emergency stop". The control center 70 is notified of the content of the report issued by the report content determination unit 61 .

Next, in the case of NO in step S7, the car state determination unit 54 determines that the car door 6 has not been opened or closed (passengers have not gotten on or off) and that the car is running at rated speed (no load inside the car) until step S7. is known, it is determined that normal driving is being performed in an unmanned state (no abnormality) (S9).

Next, the car running detection unit 52 detects the running state of the car 2 based on the measurement data of the acceleration in the Y-axis direction transmitted from the acceleration recording unit 40 . Then, the car state determination unit 54 determines whether or not the car 2 is running at high speed (that is, the load) based on the detection result of the car running detection unit 52 (S10). When it is confirmed that the car 2 is running at high speed (YES in S10), the car state determination unit 54 confirms that there is a passenger in the car 2 and that the car door 6 is opened and closed in step S2. Therefore, it is determined that a passenger has boarded the car 2 and is driving to another floor by car call, and the process proceeds to step S11. On the other hand, when it is not confirmed that the car 2 is running at high speed (NO in S10), the car state determination unit 54 confirms that there is no passenger in the car 2 and that the car door 6 is opened and closed in step S2. Therefore, it is determined that no passengers have boarded the car 2 and that the car 2 is running unmanned due to the hall call, and the process proceeds to step S14.

Next, the emergency stop detection unit 53 detects an emergency stop of the car 2 based on the measurement data of the acceleration in the Y-axis direction transmitted from the acceleration recording unit 40 . Then, the car state determination unit 54 determines whether or not the car 2 is in an emergency stop based on the detection result of the emergency stop detection unit 53 (S11). When the emergency stop of the car 2 is confirmed (YES in S11), the car state determination unit 54 determines that there is a possibility that there are passengers in the car 2 because the car 2 is traveling at high speed in step S10. is high, it is determined that an emergency stop has occurred with passengers present, and the process proceeds to step S12. On the other hand, when the emergency stop of the car 2 is not confirmed (NO in S11), the car state determination unit 54 determines that there is a high possibility that normal operation is being performed while there are passengers present, and step S13. Move to

Next, in the case of YES in step S11, the car state determination unit 54 causes the car door 6 to open and close (passengers boarding and alighting) until step S11, and after running at high speed (there is a load in the car), an emergency stop occurs. Therefore, it is determined that there is a high possibility that confinement has occurred (S12). Then, the car state determination unit 54 transmits the determination result to the report content determination unit 61 of the external reporting device 60 through the car state transmission unit 55 . Based on the detection result from the car state detection unit 50, the report content determination unit 61 determines the content of the report to be "occurrence of confinement", and the report content transmission unit 62 determines the content of the report via the public line N. It notifies the control center 70 of the content of the report issued by the unit 61 .

Next, in the case of NO in step S11, the car state determination unit 54 finds that the car door 6 has been opened and closed (passengers boarding and alighting) and high-speed running (car load is present) until step S11. Therefore, it is determined that the passenger has gotten into the car 2 and is driving to another floor (no abnormality) (S13).

Next, in the case of NO in step S10, the emergency stop detection unit 53 detects the emergency stop of the car 2, and the car state determination unit 54 detects the emergency of the car 2 based on the detection result of the emergency stop detection unit 53. It is determined whether or not there is a stop (S14). When the emergency stop of the car 2 is confirmed (YES in S14), the car state determination unit 54 determines that the car 2 is running at rated speed in step S10, and therefore there is no passenger in the car 2. It is determined that an emergency stop has occurred, and the process proceeds to step S15. On the other hand, when the emergency stop of the car 2 is not confirmed (NO in S14), the car state determination unit 54 determines that there is a high possibility that normal operation is being performed in an unmanned state, and the process proceeds to step S16. do.

Next, in the case of YES in step S14, the car state determination unit 54 causes an emergency stop to occur after rated running (no load in the car) with the car doors 6 opening and closing (passengers boarding and alighting) until step S14. Therefore, it is determined that an unmanned emergency stop has occurred (S15). Then, the car state determination unit 54 transmits the determination result to the report content determination unit 61 of the external reporting device 60 through the car state transmission unit 55 . Based on the detection result from the car state detection unit 50, the report content determination unit 61 determines the content of the report to be "unattended emergency stop". The control center 70 is notified of the content of the report issued by the report content determination unit 61 .

Note that the following content may be applied to this embodiment in order to improve the determination accuracy. In advance, the acceleration sensor measures the vibration of the emergency stop of the car 2 when the load rate is 0% and when the load rate is 50%, and registers it as an initial value. After that, in steps S7 and S14, the car state determination unit 54 compares the vibration value when the car 2 is in an emergency stop with the initial value. As the load of the car 2 increases, the vibration at the time of emergency stop becomes larger.

Next, in the case of NO in step S14, the car state determination unit 54 finds that the car door 6 has been opened and closed (passengers boarding and alighting) and that the car has run at rated speed (no load inside the car) by step S14. Therefore, it is determined that normal driving is being performed in an unmanned state (no abnormality) (S16).

After one of steps S5 to S6, S8 to S9, S12 to S13, and S15 to S16 is completed, the processing of this flowchart is terminated. The in-car condition monitoring system according to the present embodiment periodically performs a series of processes shown in the flowchart of FIG.

As described above, the present embodiment is an elevator car state monitoring system that determines the state in the car 2 of the elevator 10 that runs at a rated speed when there is no load and runs at a higher speed than when the load is running at a higher speed than when the load is present. It has an acceleration detection device 20 attached to the door of the car 2 and detecting the acceleration in the opening/closing direction of the door of the car 2 and the acceleration in the running direction of the car 2, and a car state detection device 30. . The car state detection device 30 includes a door opening/closing detection unit 51 that detects the opening/closing operation of the door of the car 2 from the information detected by the acceleration detection device 20, and a high-speed running of the car 2 from the information detected by the acceleration detection device 20. and a car state determination unit 54 for determining the state inside the car 2 based on the detection result of the door opening/closing detection unit 51 and the detection result of the car running detection unit 52 .

According to the above configuration, in this embodiment, based on the information on the door opening/closing operation output by the acceleration detection device 2 attached to the door of the car 2 and the information on the high speed running of the car 2, the inside of the car 2 is detected. of passengers can be detected. For example, currently, an elevator control device is generally installed in the machine room of a building, etc., and it is possible to obtain various information such as the load of the elevator car and the running state of the car through the elevator control device. In the case of no elevator, these information cannot be obtained. Even in such an elevator, by applying the present embodiment and attaching the acceleration detection device 20 to the car door, the opening/closing operation of the car door and the high-speed running of the car (whether or not there is a load) can be easily detected. becomes possible.

In addition, the car state determination unit 54 in the above-described embodiment includes information indicating whether or not the door of the car 2 has opened or closed after a predetermined time has passed without a call after the car 2 has landed on the floor. , the presence or absence of a person in the car 2 is determined based on information indicating whether or not the car 2 has traveled at high speed.

According to the above configuration, this embodiment uses the acceleration detection device 2 attached to the car 2, and after a predetermined time has passed without a call after the car 2 has landed on the floor, it is possible to detect whether or not the passenger is boarding or alighting. By acquiring information on the presence or absence of high-speed travel (load), the presence or absence of a person in the car 2 can be determined with high accuracy.

Further, the car state determination unit 54 in the present embodiment described above detects that the door of the car 2 is not opened or closed and that the car 2 is traveling at high speed. When it is determined that there is a passenger in the car 2, and when the opening/closing operation of the door of the car 2 is not detected and the high-speed running of the car 2 is not detected, it is determined that there is no user in the car 2. It is

According to the above configuration, this embodiment can determine whether or not there is a lingering person in the car 2 . For example, when the car state detection device determines that there is a lingering person, there is a possibility that an emergency patient has occurred in the car 2, and it is possible to take highly urgent measures against this.

Further, the car state detection device 30 in this embodiment described above includes an emergency stop detection unit 53 that detects an emergency stop of the car 2 from the information detected by the acceleration detection device 20 . Then, the car state determination unit 54 detects that the door of the car 2 is not opened or closed and that the car 2 is traveling at high speed after a predetermined time has elapsed without calling after the car 2 has landed on the floor. When the emergency stop detector 53 detects the emergency stop of the car 2, it is determined that the car 2 is trapped in the presence of a user, and the car 2 lands on the floor. After a predetermined period of time has elapsed without a call, the opening/closing operation of the door of the car 2 is not detected and the high-speed running of the car 2 is detected, and the emergency stop detection unit 53 stops the car 2. is not detected, it is determined that at least one of the presence of a user and the abnormal speed has occurred.

According to the above configuration, this embodiment can determine the detailed state of the car 2 including the presence or absence of a staying person in the car 2 . This makes it possible to take appropriate processing according to the determination result. For example, when the user is stuck in the car 2 (S5), the outside notification device 60 notifies the control center 70 of the occurrence of the lock-in, and the management room 80 confirms that there is a person stuck in the car 2. It is possible to notify the possibility that the stranded person is in the car 2 and select necessary measures (preparations for taking care of the stranded person when rescued from the car 2, etc.). In addition, for example, when the car 2 is running while the user stays (S6), a security guard can rush to stop the car 2 and confirm the lingering person in the car 2. can. In addition, when the speed abnormality of the car 2 has occurred (S6), by reporting the speed abnormality from the external reporting device 60 to the control center 70, it is possible to switch to control control or dispatch a service engineer to the site. can be

Further, when the opening/closing operation of the door of the car 2 is detected and the high-speed running of the car 2 is detected, the car state determination unit 54 in the present embodiment described above detects that the user is inside the car 2. On the other hand, when the opening/closing operation of the door of the car 2 is detected and the high-speed running of the car is not detected, it is determined that there is no user in the car 2. ing.

According to the above configuration, the car state determination unit 54 detects the opening/closing operation of the door of the car 2 and then detects whether or not the car is traveling at high speed. The presence or absence of a user can be determined.

Furthermore, the present invention is not limited to the above-described embodiments, and it goes without saying that various other applications and modifications can be made without departing from the gist of the present invention described in the claims.

For example, the above-described embodiment is a detailed and specific description of the configuration of the car condition monitoring system of the elevator 10 in order to explain the present invention in an easy-to-understand manner. not. Moreover, it is also possible to add, delete, or replace some of the configurations of the above-described embodiments with other components.

Further, each of the configurations, functions, processing units, etc. described above may be realized by hardware, for example, by designing a part or all of them using an integrated circuit. As hardware, an FPGA (Field Programmable Gate Array), an ASIC (Application Specific Integrated Circuit), or the like may be used.

DESCRIPTION OF SYMBOLS 1... Hoistway 2... Acceleration detector 4... Main rope 5... Hoist 6... Car door 7... Hatch door 8... Tail cord 10... Elevator 20... Acceleration detector 21... X acceleration detection Part 22... X acceleration transmission part 23... Y acceleration detection part 24... Y acceleration transmission part 30... State detection device 40... Acceleration recording part 41... X acceleration recording part 42... X acceleration transmission part 43 Y acceleration recording unit 44 Y acceleration transmission unit 50 State detection unit 51 Door opening/closing detection unit 52 Running detection unit 53 Emergency stop detection unit 54 State determination unit 55 State transmission unit 60... External reporting device 61... Report content determination unit 62... Report content transmission unit 70... Control center 80... Management room 90... Calculation device 91... CPU 92... ROM 93... RAM, 94...Display device, 95...Operating device, 96...Non-volatile storage, 97...Communication interface

Claims (5)

An elevator car state monitoring system that determines the state of the inside of an elevator car that runs at a rated speed without a load and runs at a higher speed than the rated run speed with a load,
an acceleration detection device attached to the door of the car for detecting acceleration in the opening/closing direction of the door of the car and acceleration in the running direction of the car;
a car state detection device;
The car state detection device includes a door opening/closing detection unit that detects the opening/closing operation of the door of the car from the information detected by the acceleration detection device, and a high-speed running of the car from the information detected by the acceleration detection device. and a car state determination unit that determines the state in the car based on the detection result of the door opening/closing detection unit and the detection result of the car running detection unit ,
The car state determination unit provides information indicating whether or not the door of the car has been opened and closed after a predetermined time has elapsed since the car has landed on the floor without being called, and whether the car has traveled at high speed. Determining whether or not a person is in the car based on information indicating whether
Elevator car condition monitoring system. The car state determination unit,
determining that there is a user in the car when the opening/closing operation of the door of the car is not detected and the high-speed running of the car is detected;
2. The elevator car according to claim 1 , wherein it is determined that there is no user in the car when opening/closing operation of the door of the car is not detected and high-speed running of the car is not detected. Internal condition monitoring system. The car state detection device includes an emergency stop detection unit that detects an emergency stop of the car from information detected by the acceleration detection device,
The car state determination unit,
A case in which opening and closing of the door of the car is not detected and high-speed running of the car is detected after a predetermined time has passed without calling after the car has landed on the floor; When the emergency stop detection unit detects the emergency stop of the car, it is determined that the trapping has occurred while the user is present,
A case in which opening and closing of the door of the car is not detected and high-speed running of the car is detected after a predetermined time has passed without calling after the car has landed on the floor; 3. The in-car state monitoring of the elevator according to claim 2 , wherein when the emergency stop detection unit does not detect the emergency stop of the car, it is determined that at least one of the presence of the user and the abnormal speed has occurred. system. The car state determination unit,
determining that there is a user in the car when the opening/closing operation of the door of the car is detected and the high-speed running of the car is detected;
2. The inside of the elevator car according to claim 1 , wherein it is determined that there is no user in the car when the opening/closing operation of the door of the car is detected and the high-speed running of the car is not detected. Condition monitoring system. 5. The elevator car according to any one of claims 1 to 4 , further comprising an external reporting device that determines the content of the report based on the determination result of the car state determination unit and transmits the content of the report to an external device. Internal condition monitoring system.

Images