CN111465568A - Battery diagnosis device for elevator - Google Patents

Abstract

A battery diagnostic device for an elevator is provided that can prevent futile attempts to perform actual load tests on a monitoring device. The elevator battery diagnostic device includes: a determination unit that determines the state of a battery that serves as a backup power source for the monitoring device when the monitoring device's mode switches from a normal mode to a battery degradation determination mode; and a control unit that, when the determination unit determines that the battery is not in a degraded state while the monitoring device is in the battery degradation determination mode, uses power from the battery to perform an actual load test on the monitoring device.

Description

Elevator battery diagnostic device

technical field

The present invention relates to a battery diagnosis device for an elevator.

Background technique

For example, Patent Document 1 discloses an elevator monitoring device. In this monitoring device, an actual load test is carried out. In the actual load test, it is simulated that the power supply to the monitoring device is cut off due to a power failure or the like, and the monitoring device operates using the power from the battery.

prior art literature

Patent Literature

Patent Document 1: Japanese Patent Laid-Open No. 2013-216460

SUMMARY OF THE INVENTION

The problem to be solved by the invention

However, even when an actual load test is attempted in the monitoring device described in Patent Document 1, the power from the battery may be insufficient. In this case, the monitoring device does not operate, and the actual load test of the monitoring device cannot be performed.

The present invention has been made in order to solve the above-mentioned problems. An object of the present invention is to provide a battery diagnosis device for an elevator that can prevent useless attempts to test the actual load of the monitoring device.

means of solving problems

The battery diagnosis device for an elevator according to the present invention includes: a determination unit that determines the state of a battery provided as a backup power source for the monitoring device when the mode of the monitoring device for the elevator is switched from the normal mode to the battery deterioration determination mode; unit, and when the determination unit determines that the battery is not in a degraded state when the monitoring device mode is the battery deterioration determination mode, the control unit executes the monitoring device using electric power from the battery actual load test.

Invention effect

According to the present invention, in the case where the battery is not in a deteriorated state, the actual load test of the monitoring device is carried out. Therefore, it is possible to prevent a situation where an actual load test of the monitoring device is tried uselessly.

Description of drawings

FIG. 1 is a block diagram of an elevator system to which an elevator battery diagnosis apparatus according to Embodiment 1 of the present invention is applied.

FIG. 2 is a block diagram of a monitoring device as a battery diagnostic device for an elevator according to Embodiment 1. FIG.

3 is a flowchart for explaining the outline of the operation of the monitoring device as the battery diagnosis device for the elevator according to the first embodiment.

4 is a hardware configuration diagram of a main part of a monitoring device serving as an elevator battery diagnostic device according to Embodiment 1. FIG.

Detailed ways

Embodiments for implementing the present invention will be described with reference to the accompanying drawings. In addition, in each figure, the same code|symbol is attached|subjected to the same or equivalent part. The repeated description of this part is appropriately simplified or even omitted.

Embodiment 1.

FIG. 1 is a block diagram of an elevator system to which an elevator battery diagnostic apparatus according to Embodiment 1 of the present invention is applied.

In the elevator system of FIG. 1, the hoistway 1 penetrates each floor of the building which is not shown in figure. The machine room 2 is arranged directly above the hoistway 1 . The hoisting machine 4 is installed inside the machine room 3 . The hoisting machine 3 includes a sheave 4 . The reverse sheave 5 is arranged inside the machine room 3 . The reverse sheave 5 is adjacent to the sheave 4 . The main rope 6 is wound around the sheave 4 and the reverse sheave 5 .

The car 7 is installed inside the hoistway 1 . The car 7 is suspended on one side of the main rope 6 . The counterweight 8 is provided inside the hoistway 1 . The counterweight 8 is suspended on the other side of the main rope 6 .

The control device 9 is installed inside the machine room 2 . The monitoring device 10 is installed inside the machine room 2 . The monitoring device 10 is electrically connected to the control device 9 . The battery 11 is installed inside the machine room 2 . For example, the battery 11 may be provided inside the monitoring device 10 . The battery 11 is electrically connected to the monitoring device 10 . The battery 11 is provided as a backup power source of the monitoring device 10 . For example, the battery 11 is a nickel-cadmium battery. For example, the battery 11 is a nickel-metal hydride battery.

The information center device 12 is installed at a position away from the building in which the elevator is installed. For example, the information center apparatus 12 is installed in the management company of an elevator.

The control device 9 performs overall control of the elevator. For example, when the operation mode of the elevator is the normal mode, the control device 9 causes the car 7 to travel in response to the call of the elevator.

The monitoring device 10 monitors the state of the elevator. For example, when an abnormality of the elevator occurs when the operation mode of the elevator is the normal mode, the monitoring device 10 transmits information indicating the abnormality to the information center device 12 . For example, when the power supply to the monitoring apparatus 10 is cut off due to a power failure or the like, the monitoring apparatus 10 transmits information indicating that the power supply is cut off to the information center apparatus 12 . At this time, the monitoring device 10 operates with electric power from the battery 11 .

Next, the monitoring apparatus 10 is demonstrated using FIG. 2. FIG.

FIG. 2 is a block diagram of a monitoring device as a battery diagnostic device for an elevator according to Embodiment 1. FIG.

As shown in FIG. 2 , the monitoring device 10 includes a switching unit 13 , a monitoring unit 14 , a measurement unit 15 , a storage unit 16 , a determination unit 17 , and a control unit 18 .

The switching unit 13 is provided so as to be able to switch the mode of the monitoring device 10 . Specifically, the switching unit 13 switches the mode of the monitoring device 10 between the normal mode and the battery deterioration determination mode.

The monitoring unit 14 is provided so that the monitoring object can be changed according to the mode of the monitoring device 10 . For example, when the mode of the monitoring device 10 is the normal mode, the monitoring unit 14 monitors the state of the elevator. For example, when the mode of the monitoring device 10 is the deterioration determination mode, the monitoring unit 14 monitors the state of the battery 11 .

The measuring unit 15 is provided so as to be able to measure the characteristics of the battery 11 . For example, the measurement unit 15 applies an AC voltage of a frequency from 0 Hz to several MHz to the battery 11 to measure the impedance of the battery 11 .

The storage unit 16 is provided so as to be able to store information indicating the measurement result of the measurement unit 15 . For example, when the measurement unit 15 measures the characteristic of the battery 11, the storage unit 16 stores the information of the measurement date and time of the characteristic in association with the information of the characteristic.

The determination unit 17 is provided so as to be able to determine the state of the battery 11 based on the measurement result of the measurement unit 15 . For example, the determination unit 17 determines the state of the battery 11 based on the comparison result between the measurement result of the measurement unit 15 and the reference stored in the storage unit 16 . The determination unit 17 determines that the battery 11 is in a deteriorated state when, for example, it is determined that the battery 11 is expected to deteriorate when three months have elapsed from the measurement date and time.

The control unit 18 is provided so as to be able to control the operation of the switching unit 13 and the operation of the measuring unit 15 . For example, the control unit 18 operates the switching unit 13 at a preset measurement time, thereby switching the mode of the monitoring device 10 from the normal mode to the battery deterioration diagnosis mode. For example, when the determination unit 17 determines that the battery 11 is not in a deteriorated state when the mode of the monitoring device 10 is the battery deterioration determination mode, the actual load test of the monitoring device 10 is performed using the electric power from the battery 11 .

In the actual load test, it is simulated that the power supply to the monitoring device 10 is cut off due to a power failure or the like, and the monitoring device 10 operates with the power from the battery 11 . In this state, the monitoring unit 14 transmits information indicating that the power supply is turned off to the information center device 12 via a public line or the like. At this time, the monitoring unit 14 transmits information that can be distinguished from when the mode is the normal mode. The information center device 12 transmits a confirmation signal indicating that the information indicating that the power supply has been cut off has been received. The monitoring unit 14 receives this confirmation signal.

Next, an outline of the operation of the work status monitoring device 9 will be described with reference to FIG. 3 .

3 is a flowchart for explaining the outline of the operation of the monitoring device as the battery diagnosis device for the elevator according to the first embodiment.

In step S1 , the monitoring device 10 determines whether or not the condition for switching the operation mode from the normal mode to the battery deterioration diagnosis mode is satisfied.

When it is determined in step S1 that the conditions for switching the operation mode from the normal mode to the battery deterioration diagnosis mode are not satisfied, the monitoring device 10 performs the operation of step S2. In step S2, the monitoring apparatus 10 monitors the state of an elevator. Then, the monitoring apparatus 10 performs the operation|movement of step S1.

When it is determined in step S1 that the conditions for switching the operation mode from the normal mode to the battery deterioration diagnosis mode are satisfied, the monitoring device 10 performs the operation of step S3. The conditions for switching the mode are, for example, a preset measurement time, that the monitoring device 10 does not detect or report an abnormality of the elevator or the power supply, or the like. In step S3, the monitoring device 10 determines whether or not the battery 11 is in a deteriorated state after switching the operation mode from the normal mode to the battery deterioration diagnosis mode.

When it is determined in step S3 that the battery 11 is not in a deteriorated state, the monitoring device 10 performs the operation of step S4. In step S4 , the monitoring device 10 performs an actual load test of the monitoring device 10 using the power from the battery 11 . Then, the monitoring apparatus 10 performs the operation|movement of step S1.

When it is determined in step S3 that the battery 11 is in a deteriorated state, the monitoring device 10 performs the operation of step S5. In step S5, the monitoring device 10 transmits information indicating that the battery 11 is in a degraded state to the outside. Then, the monitoring apparatus 10 performs the operation|movement of step S1.

According to Embodiment 1 described above, when the battery 11 is not in a deteriorated state, the actual load test of the monitoring device 10 is performed. Therefore, it is possible to prevent a useless attempt of an actual load test of the monitoring device 10 .

In addition, when the battery 11 is in a degraded state, a signal indicating that the battery 11 is in a degraded state is transmitted to the outside. Therefore, it is possible to not forget to replace the battery 11 at an appropriate timing suitable for the life. As a result, the maintenance work time of the battery 11 can be shortened. Furthermore, the cost for replacing the battery 11 can be reduced.

In addition, the state of the battery 11 is determined based on the characteristics of the battery 11 . Therefore, the deterioration state of the battery 11 can be determined more accurately.

In addition, the discharge curve when a load is applied to the battery 11 may be used as the characteristics of the battery 11 . Also in this case, the deterioration state of the battery 11 can be determined more accurately.

In addition, the information on the measurement date and time of the characteristics of the battery 11 is stored in association with the information on the characteristics. Therefore, the time-dependent change in the characteristics of the battery 11 can be grasped. As a result, the lifetime and replacement time of the battery 11 can be estimated.

In addition, the information on the measurement date and time of the characteristics of the battery 11 , the information on the characteristics, and the information on the area where the battery 11 is installed may be stored in association with each other. In this case, the time-dependent change in the characteristics of the battery 11 can be analyzed for each similar region. As a result, a reference for determining the state of the battery 11 can be set according to the environment in which the battery 11 is installed.

In addition, based on the characteristics measured by the measuring unit 15 , the reference for determining the state of the battery 11 may be updated. For example, in the case of measuring the impedance of the battery 11 , a curve of impedance versus aging is used as a reference. If the reference is updated based on the measurement result of the measurement unit 15 , the deterioration state of the battery 11 can be determined more accurately.

In addition, a battery diagnostic device including the functions of the switching unit 13 , the monitoring unit 14 , the measurement unit 15 , the storage unit 16 , the determination unit 17 , and the control unit 18 may be provided separately from the monitoring device 10 . Also in this case, it is possible to prevent useless attempts to perform an actual load test of the monitoring device 10 .

In addition, the function of the switching unit 13 may be realized using a physical switch. In this case, when an operator performs maintenance work, the operation mode of the monitoring device 10 can be switched between the normal mode and the battery deterioration diagnosis mode.

In addition, the operation mode of the monitoring device 10 may be switched based on the diagnosis command information from the information center device 12 . In this case, the deterioration state of the battery 11 can be finely determined as necessary.

In addition, the monitoring device 10 of Embodiment 1 may be applied to an elevator without the machine room 2 . Also in this case, it is possible to prevent useless attempts to perform an actual load test of the monitoring device 10 .

Next, an example of the main part of the monitoring device 10 will be described with reference to FIG. 4 .

4 is a hardware configuration diagram of a main part of a monitoring device serving as an elevator battery diagnostic device according to Embodiment 1. FIG.

Each function of the main part of the monitoring device 10 can be realized by a processing circuit. For example, the processing circuit includes at least one processor 19a and at least one memory 19b. For example, the processing circuit is provided with at least one dedicated hardware 20 .

When the processing circuit includes at least one processor 19a and at least one memory 19b, each function of the main part of the monitoring device 10 is realized by software, firmware, or a combination of software and firmware. At least one of software and firmware is described as a program. At least one of software and firmware is stored in at least one memory 19b. The at least one processor 19a realizes each function of the monitoring device 10 by reading out and executing programs stored in the at least one memory 19b. The at least one processor 19a is also referred to as a CPU (Central Processing Unit), a central processing unit, a processing unit, an arithmetic unit, a microprocessor, a microcomputer, or a DSP. For example, at least one memory 19b is RAM (Random Access Memory), ROM (Read Only Memory), flash memory, EPROM (Erasable Programmable Read Only Memory), EEPROM ( Electrically Erasable Programmable Read Only Memory: Electrically Erasable Programmable Read Only Memory) and other non-volatile or volatile semiconductor memories, magnetic disks, floppy disks, optical disks, CD (compact disk, compact disk), mini disk (minidisc), DVD (Digital Versatile Disk: Digital Versatile Disc) and the like.

In the case where the processing circuit includes at least one dedicated hardware 20, the processing circuit includes, for example, a single circuit, a composite circuit, a programming processor, a parallel programming processor, an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array) : Field Programmable Gate Array) or their combination. For example, each function of the main part of the monitoring device 10 can be realized by a processing circuit, respectively. For example, the functions of the main parts of the monitoring device 10 can be realized collectively by the processing circuit.

A part of each function of the monitoring device 10 may be realized by dedicated hardware 20, and the other part may be realized by software or firmware. For example, the function of the determination unit 17 may be realized by a processing circuit as the dedicated hardware 20, and the functions other than the function of the determination unit 17 may be read out and executed by at least one processor 19a and stored in at least one memory. 19b to achieve this.

As such, the processing circuit implements each function of the main part of the monitoring device 10 using hardware 20, software, firmware, or a combination thereof.

Although not shown, each function of the main part of the control device 9 can also be realized by a processing circuit equivalent to the processing circuit that realizes each function of the main part of the monitoring device 10 . Each function of the main part of the information center device 12 can also be realized by a processing circuit equivalent to the processing circuit that realizes each function of the main part of the monitoring device 10 .

Industrial Availability

As described above, the battery diagnosis apparatus for an elevator of the present invention can be used in a system that prevents useless attempts to monitor the actual load test of the apparatus.

Label description

1: shaft; 2: machine room; 3: traction machine; 4: sheave; 5: reverse sheave; 6: main rope; 7: car; 8: counterweight; 9: control device; 10: monitoring device; 11: battery; 12: information center device; 13: switching unit; 14: monitoring unit; 15: measuring unit; 16: storage unit; 17: determination unit; 18: control unit; 19a processor; 19b: memory; hardware.

Claims (5)

1. A battery diagnosis device for an elevator, wherein the battery diagnosis device for an elevator comprises: a determination unit that determines the state of a battery provided as a backup power source of the monitoring device when the mode of the monitoring device of the elevator is switched from the normal mode to the battery deterioration determination mode; and a control unit, wherein when the determination unit determines that the battery is not in a degraded state when the mode of the monitoring device is the battery deterioration determination mode, the control unit performs the monitoring using electric power from the battery Actual load test of the device. 2. The battery diagnosis device for an elevator according to claim 1, wherein, When the determination unit determines that the battery is in a degraded state when the mode of the monitoring device is the battery degradation determination mode, the control unit transmits information indicating that the battery is in a degraded state to the outside. 3. The battery diagnosis device for an elevator according to claim 1 or 2, wherein, The battery diagnosis device for the elevator includes a measurement unit that measures the characteristics of the battery when the mode of the monitoring device is the battery deterioration determination mode, The determination unit determines the state of the battery based on the characteristics measured by the measurement unit. 4. The battery diagnosis device for an elevator according to claim 3, wherein, The battery diagnosis device for the elevator includes a storage unit, and when the measurement unit measures the characteristic of the battery, the storage unit stores information on the measurement date and time of the characteristic in association with the information on the characteristic. 5. The battery diagnostic device of an elevator according to claim 4, wherein, The determination unit updates a reference for determining the state of the battery based on the characteristic when the characteristic of the battery is measured by the measurement unit.

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