JP7188295B2 - Equipment condition monitoring device and equipment condition monitoring method - Google Patents

Description

The present invention relates to an equipment condition monitoring device and an equipment condition monitoring method for monitoring the condition of equipment such as a belt conveyor.

For example, in a raw material yard in a steelworks, raw materials such as iron ore are basically conveyed by a belt conveyor.
Here, abnormalities in the belt conveyor include, for example, defects in the shape of the belt itself such as holes and longitudinal tears caused by damage to the belt, failures in motors, reduction gears, pulleys, etc., and poor rotation of rollers. Since such belt conveyor abnormalities directly affect stable production at steelworks, inspection management of belt conveyors is very important.
However, in raw material yards, a large number of belt conveyors are installed in a large site, and the number of belt conveyors may reach from tens to hundreds of units, and the total extension distance may reach from tens to hundreds of kilometers. Individual inspection of the conveyor by humans is difficult. Therefore, it is desired to automatically and efficiently monitor the state of the belt conveyor by attaching a sensor to the belt conveyor.

Conventionally, equipment condition monitoring devices for monitoring the condition of equipment such as belt conveyors include vibration sensors that detect the vibration of the equipment, acoustic sensors that detect the sound of the equipment, and temperature sensors that detect the temperature of the equipment. It is generally known that a vibration sensor or the like is installed in a facility, a vibration sensor or the like is wired to a data collection device, and the data collection device is connected wirelessly or by wire to a data analysis computer. In this facility condition monitoring device, the data from the vibration sensor or the like is analyzed by a data analysis computer to determine whether it is abnormal or normal, and is utilized for maintenance of the facility.

In addition, as another facility condition monitoring device for monitoring the status of facilities such as conventional belt conveyors, there are a vibration sensor that detects the vibration of the facility, an acoustic sensor that detects the sound of the facility, and a temperature sensor that detects the temperature of the facility. etc. are configured with wireless sensors and installed in the facility, data from the wireless sensors are wirelessly transmitted to the data collection device, and data analysis is performed by connecting the data collection device to a data analysis computer wirelessly or by wire. It is known that the data is transferred to a computer for data analysis, and the computer for data analysis analyzes the data to determine whether it is abnormal or normal.

Patent Literature 1 discloses a plant facility diagnosis system using wireless sensors. The plant equipment diagnosis system disclosed in Patent Document 1 includes one or more sensor modules and a state diagnosis device. Each of the sensor modules includes a state detection sensor, a data storage section, a data reading section, a transmission data selection section, and a wireless communication section. The transmission data selection unit selects the output of the data conversion unit as transmission data when the state diagnosis device has diagnosed that the plant equipment is in a normal state and has not transmitted the selection command, and selects the output of the data conversion unit as transmission data from the state diagnosis device. When the selection command is received, the output of the data reading section is selected as transmission data.
As a result, the power consumption of the sensor module can be reduced, and the signs of abnormality in the plant equipment can be detected appropriately while extending the life of the battery.

Further, Patent Literature 2 discloses a remote monitoring system using a wireless sensor. In the remote monitoring system disclosed in Patent Document 2, a plurality of monitoring devices equipped with one or more sensors and wireless communication devices for receiving information on monitored objects are arranged at monitoring points, and the monitoring device is driven for each monitoring device. A battery is provided as a power source, a command is issued from a wireless communication device on the host side to the monitoring device, and in accordance with the command, the monitoring device has a wireless communication line for sending information detected by the sensor to the host side, and each monitoring device is adjacent. A wireless communication device relays instructions and sensor detection information to the host side or from the host side to the monitoring device side.
As a result, it is possible to provide a remote monitoring system in which construction work for remote communication lines and feeder lines is simple and many monitoring devices can be easily installed.

Further, Patent Document 3 discloses a monitoring system using a camera device. The monitoring system disclosed in Patent Document 3 is a monitoring system in which a plurality of camera devices are connected to a server via a network, wherein the camera device has an image sensor section and a measurement section, and the measurement section is the image sensor section. The acquired image data is divided into multiple areas, and an image abnormality is detected from the luminance signal average value of each area and the change in the luminance signal average value. It transmits detection information.
As a result, it is possible to efficiently detect video abnormalities of many camera devices without relying on visual confirmation.

JP 2018-101369 A JP-A-10-227400 WO2015/182751

However, these conventional facility condition monitoring devices have the following problems.
In other words, when a vibration sensor, etc. is installed in the facility to be monitored, the vibration sensor, etc. is wired to the data collection device, and the data collection device is connected wirelessly or by wire to the data analysis computer, the raw material yard, etc. However, when sensors are installed on facilities such as belt conveyors in a large site, wiring work is expensive, and there is a problem that sensors can only be installed in limited facilities within the site.

In addition, a vibration sensor or the like is configured as a wireless sensor and installed in the facility, data from the wireless sensor is wirelessly transmitted to the data collection device, and the data collection device is connected wirelessly or by wire to the data analysis computer. For those that transfer data to a data analysis computer, including those that use wireless sensors disclosed in Patent Documents 1 and 2, the higher the data transfer frequency of wireless sensors, the more power is required for wireless transmission. Resulting in. As a result, the battery life is shortened, so it has been necessary to frequently replace the battery or reduce the frequency of data transfer.

Furthermore, in the case of the monitoring system disclosed in Patent Document 3, the monitoring target is a moving body such as a person or a stationary body such as an outdoor light. It was not possible to monitor the vibration state of the bearings used in the belt conveyor.
Accordingly, the present invention has been made to solve these conventional problems, and its object is to install equipment in a wide site at a low cost without using a wireless sensor and without incurring a lot of wiring work costs. An object of the present invention is to provide an equipment condition monitoring device and an equipment condition monitoring method capable of appropriately monitoring equipment conditions including equipment conditions that cannot be directly detected by a camera device.

In order to achieve the above object, an equipment condition monitoring device according to an aspect of the present invention includes at least one equipment condition detection sensor installed in at least one equipment to be monitored to detect the condition of each equipment; At least one luminous body that is connected to a state detection sensor and installed in a state of being exposed to the outside of the facility and that emits light according to the state of each facility detected by the facility state detection sensor; and a camera that captures an image of the luminous body. and a device.
A facility state monitoring method according to another aspect of the present invention includes a facility state detection step of detecting the state of each facility with at least one facility state detection sensor installed in at least one facility to be monitored; a luminous body emitting step in which at least one luminous body connected to a state detection sensor and installed in a state of being exposed to the outside of the facility emits light according to the state of each facility detected in the facility state detection step; and an image capturing step of capturing an image of the light emitter with a camera device.

According to the facility status monitoring device and facility status monitoring method according to the present invention, the camera device directly detects the status of facilities in a wide site at low cost without using a wireless sensor and without incurring a lot of wiring work costs. It is possible to provide an equipment condition monitoring device and an equipment condition monitoring method that can appropriately monitor even equipment conditions that cannot be monitored.

1 is a schematic configuration diagram of an equipment condition monitoring device according to an embodiment of the present invention; FIG. FIG. 2 is a schematic diagram showing an equipment state detection sensor and light emitters installed in bearings of a belt conveyor as equipment that constitutes the equipment state monitoring device shown in FIG. 1 ; FIG. 2 is a schematic diagram showing a state in which an equipment state detection sensor and light emitters are zoomed in by a camera device that constitutes the equipment state monitoring device shown in FIG. 1 ; FIG. 2 is a flowchart for explaining the flow of processing in the equipment state monitoring device shown in FIG. 1; FIG. FIG. 5 is a flow chart showing the details of the process of step S4 (image analysis step) shown in FIG. 4, which is the execution process of the image analysis apparatus; FIG. It is a schematic diagram which shows the 1st modification which changed the installation method of an equipment state detection sensor and a light-emitting body. It is a schematic diagram which shows the 2nd modification which changed the installation method of an equipment state detection sensor and a light-emitting body.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings. The embodiment is an example of monitoring the state of bearings of a belt conveyor installed in a raw material yard in a steelworks.
It should be noted that the drawings are schematic, and the dimensional relationship of each element, the ratio of each element, and the like may differ from the actual ones. Even between the drawings, there are cases where portions with different dimensional relationships and ratios are included.
First, FIG. 1 shows a schematic configuration of an equipment condition monitoring apparatus according to one embodiment of the present invention. The equipment condition monitoring device 1 includes a plurality of equipment condition detection sensors 12 installed on each of a plurality of bearings 10 of a plurality of belt conveyors (not shown) to be monitored. The belt conveyors having the bearings 10 to be monitored are all the belt conveyors installed in the raw material yard A with a large site (for example, about 1 km long x 1 km wide). Each bearing 10 is provided on a frame 11 of the belt conveyor, as shown in FIGS. One equipment state detection sensor 12 is installed in each bearing 10 .

Each equipment state detection sensor 12 detects the state of the bearing 10. For example, a vibration sensor that detects the vibration (acceleration) of the bearing 10, an acoustic sensor that detects the sound (sound pressure) of the bearing 10 , A temperature sensor that detects the temperature of is exemplified. Further, when the object to be monitored is an electric motor or the like, the equipment state detection sensor 12 may be a current sensor that detects the electric current value of the electric motor. Hereinafter, in this embodiment, an example in which a vibration sensor is used as the equipment state detection sensor 12 will be described.

1 and 2, the equipment condition monitoring device 1 includes a plurality of light emitters 13 connected to each equipment condition detection sensor 12 and installed in a state of being exposed to the outside of the bearing 10. . Since each light emitter 13 is installed so as to be exposed to the outside of each bearing 10, each light emitter 13 can be easily imaged by a camera device 14, which will be described later. If the bearing 10 is located below the belt conveyor and the light emitters 13 are hidden behind the belt conveyor and are not exposed to the outside, and it is difficult to take an image of each light emitter 13 with the camera device 14, each light emission The body 13 is installed above the belt conveyor so that each light emitting body 13 can be easily imaged by a camera device 14.例文帳に追加
Each light emitter 13 emits light according to the state of each bearing 10 detected by each equipment state detection sensor 12 . The light emission state of each light emitter 13 is determined by the state of each bearing 10 detected by each equipment state detection sensor 12 . The manner in which each light emitter 13 emits light according to the state of the bearing 10 is determined for each light emitter 13 and may be the same or different for all the light emitters 13 .

In the present embodiment, each light emitter 13 is composed of a red LED and a drive circuit that drives the red LED, and the red LED detects the vibration state (acceleration state) of the bearing 10 detected by the vibration sensor as each equipment state detection sensor 12. ) The driving circuit controls the light emission interval (including the case where the red LED does not emit light and the case where the red LED always lights) according to the state. All the light emitters 13 in the raw material yard A have the same way of emitting light according to the state of the bearing 10 . For example, a threshold value is set for the acceleration detected by the vibration sensor as the equipment state detection sensor 12 . When the acceleration detected by the vibration sensor is greater than the threshold value, the drive circuit determines that the bearing 10 is in an abnormal condition and lights the light emitter 13 in red. Further, when the detected acceleration exceeds, for example, 80% of the threshold value, the drive circuit determines that the state of the bearing 10 is in the caution state, and blinks the light emitter 13 in red. Further, when the detected acceleration is less than, for example, 80% of the threshold, the drive circuit determines that the bearing 10 is in a normal state and controls the light emitter 13 not to light. All the light emitters 13 in the raw material yard A have the same way of emitting light.

In addition, when changing the interval at which the red LED emits light according to the state of the bearing 10 detected by each equipment state detection sensor 12, the drive circuit of each light emitter 13 changes the lighting time, blinking time, blinking interval, etc. can be changed as appropriate.
Also, although the light emitter 13 is composed of a red LED, the light emission color may be changed according to the state of the bearing 10 detected by the equipment state detection sensor 12 . In this case, for example, the light emitter 13 is composed of a red LED, a green LED, a blue LED, and a drive circuit. When the acceleration detected by the vibration sensor as the equipment state detection sensor 12 is greater than the threshold value, the drive circuit determines that the bearing 10 is in an abnormal state and turns on the red LED. Further, when the detected acceleration exceeds the threshold value, for example, 80%, the drive circuit determines that the state of the bearing 10 is in the caution state, and lights the green LED. Furthermore, when the detected acceleration is, for example, 80% or less of the threshold, the driving circuit determines that the state of the bearing 10 is normal and turns on the blue LED, or turns on any of the red, green, and blue LEDs. can be controlled so that it does not light up.

In addition, each light emitter 13 changes the interval at which it emits light according to the state of the bearing 10 detected by each equipment state detection sensor 12, and emits light according to the state of the bearing 10 detected by the equipment state detection sensor 12. You may make it combine with changing the color to display.
The facility condition monitoring device 1 also includes a camera device 14 that captures an image of each of all the light emitters 13 in the raw material yard A. As shown in FIG. The camera device 14 is a remote camera composed of a high-resolution CCD camera, and constantly captures an image of each of the plurality of light emitters 13 within its field of view B. The camera device 14 is installed in a monitoring tower or the like that overlooks the entire raw material yard A, and in order to capture an image of all the light emitters 13 in the entire raw material yard A, all the light emitters 13 are captured within the field of view B according to the size of the raw material yard A. If all the light emitters 13 are contained within the field of view B, one light emitter 13 may be installed.

The camera device 14 has a swing mechanism so that it can swing its head in the horizontal direction indicated by the arrow X and the vertical direction indicated by the arrow Y in FIG. Since the camera device 14 has a swinging mechanism, it is possible to capture images over a wide area.
The camera device 14 has a zoom-up function, as shown in FIG. can.

The equipment condition monitoring device 1 also includes an image analysis device 15 that analyzes the captured image captured by the camera device 14 and determines the condition of each bearing 10 based on the light emission state of each light emitter 13 .
The image analysis device 15 is a computer system having an arithmetic processing function for realizing each function described later by executing a program on computer software. This computer system comprises a ROM, a RAM, a CPU, etc., and executes various dedicated programs pre-stored in the ROM, etc., to realize each function described later on software.

The image analysis device 15 is connected to the camera device 14 by wire or wirelessly, and is installed, for example, in an office management room. and an equipment state determination unit 17 that analyzes the captured image acquired by the image acquisition unit 16 and determines the state of each bearing 10 from the light emission state of each light emitter 13 .
The image acquisition unit 16 acquires captured images of all the light emitters 13 installed on all the bearings 10 provided on all the plurality of belt conveyors in the raw material yard A, captured by the camera device 14 .

The equipment state determination unit 17 determines the state of each bearing 10 based on the light emission state of each light emitter 13 . Since the manner of light emission of each light emitter 13 according to the state of the bearing 10 is determined for each light emitter 13 , the equipment state determination unit 17 determines which light emitter 13 in the raw material yard A is based on the state of the bearing 10 . It is possible to determine the state of each bearing 10 from the light emission state of each light emitter 13 .
In this embodiment, the manner of light emission of each light emitter 13 according to the state of the bearing 10 is the same for all the light emitters 13 in the raw material yard A, and when the state of the bearing 10 is normal, the light emitter 13 does not light up, the light emitter 13 blinks when the state of the bearing 10 is in the caution state, and the light emitter 13 always lights up when the state of the bearing 10 is in the abnormal state. Therefore, the equipment state determination unit 17 determines that the bearing 10 is in a normal state when the light emitter 13 is not lit, and determines that the bearing 10 is in a caution state when the light emitter 13 is blinking. However, when the light emitter 13 is lit, it is determined that the bearing 10 is in an abnormal state.

Further, as shown in FIG. 1, the facility condition monitoring apparatus 1 includes a storage unit 19 that stores in advance the position of each light emitter 13 in the captured image based on the angle of the camera device, the zoom ratio, and the position of the screen, and the storage unit 19 a light emitter position determination unit 18 for determining whether or not the position of each light emitter 13 in the captured image stored in advance matches the position of each light emitter 13 used as a criterion for determining the state of each bearing 10; It has
The determination of the positions of the light emitters 13 by the light emitter position determination unit 18 is performed for all the positions of the light emitters 13 in the raw material yard A individually.

If the position of each light emitter 13 in the captured image is stored in advance in the storage unit 19 according to the angle of the camera device, the zoom ratio, and the position of the screen, the light emitter 13 of which bearing 10 in the raw material yard A is stored. can be recognized.
Then, the position of each light emitter 13 in the picked-up image pre-stored in the storage unit 19 by the light emitter position determination unit 18 matches the position of each light emitter 13 used as a criterion for determining the state of each bearing 10. , the state of each bearing 10 determined by the facility state determining unit 17 is recognized as the state of each bearing 10 to which the light emitter 13 is attached. That is, the state of the specific bearing 10 in the raw material yard A can be recognized, and the abnormality of the specific bearing 10 can be recognized. When the state of each bearing 10 determined by the facility state determination unit 17 is normal, the state of each bearing 10 to which the light emitter 13 is attached is determined to be normal. Further, when the state of each bearing 10 determined by the equipment state determination unit 17 is the caution state, the state of each bearing 10 to which the light emitter 13 is attached is set to the caution state. Furthermore, when the state of each bearing 10 determined by the facility state determining unit 17 is abnormal, the state of each bearing 10 to which the light emitter 13 is attached is determined to be abnormal.

On the other hand, the positions of the light emitters 13 and the determination criteria of the states of the bearings 10 in the captured images pre-stored in the storage section 19 by the light emitter position determination section 18 (the determination criteria used by the equipment state determination section 17) and If it is determined that the positions of the respective light emitters 13 do not match, it means that the light emitters 13 attached outside the bearing 10 are emitting light, and this is recognized as disturbance.
The equipment state monitoring device 1 also includes an equipment state determination result output unit 20 . The equipment state determination result output unit 20 outputs the position of each light emitter 13 in the imaged image pre-stored in the storage unit 19 by the light emitter position determination unit 18 and the position of each light emitter 13 that serves as a criterion for determining the state of each bearing 10. If it is determined that the positions match, the state of each bearing 10 determined by the equipment state determination unit 17 is regarded as the state of each bearing 10 to which the light emitter 13 is attached, together with the position of the light emitter 13. , to the display device 21, which will be described later. That is, the position of the light emitter 13 and whether each bearing 10 to which the light emitter 13 is attached is in a normal state, a caution state, or an abnormal state is output to the display device 21 .

On the other hand, the equipment state determination result output unit 20 outputs the positions of the light emitters 13 and the state of the bearings 10 in the picked-up image pre-stored in the storage unit 19 by the light emitter position determination unit 18 . If it is determined that the position of 13 does not match, the state of each bearing 10 determined by the equipment state determination unit 17 is regarded as a disturbance in the state of equipment other than each bearing 10 to which the light emitter 13 is attached. , to the display device 21 .
The facility condition monitoring device 1 also includes a display device 21 . The display device 21 is configured by a display or the like connected to the image analysis device 15 . The display device 21 displays the output from the equipment state determination result output unit 20 . In addition, in the output from the equipment state determination result output unit 20, if the state of each bearing 10 is in an abnormal state or a caution state, an alarm device (not shown) may sound an alarm.

Next, the flow of processing in the equipment state monitoring device 1 will be described with reference to the flow charts shown in FIGS. 4 and 5. FIG.
First, when monitoring the state of all the plurality of equipment in the raw material yard A, here, the state of all the bearings 10 provided on all the belt conveyors, in step S1, the state of each equipment installed in each bearing 10 The detection sensor 12 detects the state of each bearing 10 (equipment state detection step). Here, the equipment state detection sensor 12 is a vibration sensor and detects vibration (acceleration) of the bearing 10 .

Next, in step S2, each light emitter 13 connected to each equipment state detection sensor 12 emits light according to the state of each bearing 10 detected in the equipment state detection step (light emission step). In this embodiment, a threshold value is set for the acceleration detected by the vibration sensor as the equipment state detection sensor 12 . When the acceleration detected by the vibration sensor is greater than the threshold value, the drive circuit determines that the bearing 10 is in an abnormal condition and lights the light emitter 13 in red. Further, when the detected acceleration exceeds, for example, 80% of the threshold value, the drive circuit determines that the state of the bearing 10 is in the caution state, and blinks the light emitter 13 in red. Furthermore, when the detected acceleration is less than, for example, 80% of the threshold, the drive circuit determines that the bearing 10 is in a normal state and controls the light emitter 13 not to light.

Next, in step S3, the camera device 14 images each of all the light emitters 13 installed on all the bearings 10 provided on all the plurality of belt conveyors in the raw material yard A (imaging step).
Here, the camera device 14 has a swinging mechanism so that it can swing its head in the left-right direction indicated by the arrow X and in the up-down direction indicated by the arrow Y in FIG. All the light emitters 13 in the raw material yard A are imaged by shaking one's head in each direction. In addition, when one camera device 14 is insufficient, all the light emitters 13 in the raw material yard A are imaged by a plurality of camera devices 14 .

Moreover, since the camera device 14 has a zoom-up function, the screen of the bearing 10 and the light emitter 13 is enlarged for confirmation by the operator as necessary.
Here, since each light emitter 13 is installed so as to be exposed to the outside of each bearing 10 as described above, each light emitter 13 can be imaged by the camera device 14 . In addition, when the bearing 10 is located below the belt conveyor and the light emitters 13 are hidden behind the belt conveyor and are not exposed to the outside, it is difficult to image each light emitter 13 with the camera device 14. Each light emitter 13 is installed above a belt conveyor so that each light emitter 13 can be imaged by a camera device 14.例文帳に追加
Next, in step S4, the image analysis device 15 analyzes the captured image captured in the imaging step, and determines the state of each bearing 10 from the light emission state of each light emitter 13 (image analysis step).

Details of the processing of this image analysis step will be described with reference to FIG.
In the image analysis step, first, in step S41, the image acquisition unit 16 of the image analysis device 15 detects all the bearings provided in all of the plurality of belt conveyors in the raw material yard A captured by the camera device 14 in step S3. Captured images of all the light emitters 13 installed in 10 are acquired (captured image acquisition step).
Next, in step S42, the equipment state determination unit 17 of the image analysis device 15 determines the state of each bearing 10 from the light emission state of each light emitter 13 (equipment state determination step).
Since the manner of light emission of each light emitter 13 according to the state of the bearing 10 is determined for each light emitter 13 , the equipment state determination unit 17 determines which light emitter 13 in the raw material yard A is based on the state of the bearing 10 . It is possible to determine the state of each bearing 10 from the light emission state of each light emitter 13 .

In this embodiment, the manner of light emission of each light emitter 13 according to the state of the bearing 10 is the same for all the light emitters 13 in the raw material yard A, and when the state of the bearing 10 is normal, the light emitter 13 does not light up, the light emitter 13 blinks when the state of the bearing 10 is in the caution state, and the light emitter 13 always lights up when the state of the bearing 10 is in the abnormal state. Therefore, the equipment state determination unit 17 determines that the bearing 10 is in a normal state when the light emitter 13 is not lit, and determines that the bearing 10 is in a caution state when the light emitter 13 is blinking. However, when the light emitter 13 is lit, it is determined that the bearing 10 is in an abnormal state.

Next, in step 43, the luminous body position determination unit 18 of the image analysis device 15 determines the position of each luminous body 13 and the determination criteria of the state of each bearing 10 in the captured image stored in advance in the storage unit 19 (determined in step S42). It is determined whether or not the position of each light emitter 13 used as a reference matches (light emitter position determination step).
In the storage unit 19, the position of each light emitter 13 in the captured image is stored in advance by the angle of the camera device 14, the zoom ratio, and the position of the screen.
Then, if the determination result in step S14 is YES, that is, the positions of the light emitters 13 in the captured image pre-stored in the storage unit 19 and the positions of the light emitters 13 that serve as the criteria for determining the state of each bearing 10 are determined. If they match, the process moves to step S44, and if the determination result is No, the process moves to step S45.

In step S44, the equipment state determination result output unit 20 of the image analysis device 15 converts the state of each bearing 10 determined by the equipment state determination unit 17 into the state of each bearing 10 to which the light emitter 13 is attached. 13 is output to the display device 21 . When the state of each bearing 10 determined by the equipment state determination unit 17 is normal, the state of each bearing 10 to which the light emitter 13 is attached is determined to be a normal state, and each bearing determined by the equipment state determination unit 17 10 is the caution state, the state of each bearing 10 to which the light emitter 13 is attached is the caution state. The state of each bearing 10 to which 13 is attached is assumed to be an abnormal state. Thereby, the operator can recognize the state of the specific bearing 10 in the raw material yard A and recognize the abnormal state of the specific bearing 10 by referring to the display device 21 .

On the other hand, in step S45, the equipment state determination result output unit 20 of the image analysis device 15 determines the state of each bearing 10 determined by the equipment state determination unit 17 as the state of the equipment other than the bearings 10 to which the light emitters 13 are attached. In the state, it is output to the display device 21 as a disturbance.
This completes the image analysis step.
Then, in step 5, the display device 21 displays the output from the equipment state determination result output unit 20 (determination result display step).
As a result, the processing in the equipment state monitoring device 1 ends.

As described above, according to the equipment condition monitoring device 1 and the equipment condition monitoring method according to the present embodiment, at least one equipment condition detection sensor 12 installed in each of at least one bearing (equipment) 10 is The state of each bearing 10 to be monitored is detected (step S1: equipment state detection step). According to the equipment condition monitoring device 1 and the equipment condition monitoring method, at least one light emitter connected to each of the equipment condition detection sensors 12 and installed in a state of being exposed to the outside of each of the bearings (equipment) 10 13 emits light according to the state of each bearing (equipment) 10 detected by each of the equipment state detection sensors 12 (step S2: luminous body emitting step). Further, according to the equipment condition monitoring device 1 and the equipment condition monitoring method, the camera device 14 captures an image of each light emitter 13 (step S3: imaging step), and the image analysis device 15 captures the image captured by the camera device 14. The image is analyzed, and the state of each bearing (equipment) 10 is determined from the light emission state of each light emitter 13 (step S4: image analysis step).
As a result, the state of the bearing 10 in the raw material yard A, including the state of the bearing 10 that cannot be detected by the camera device 14, can be detected inexpensively without using a wireless sensor and without incurring much wiring work costs. can be properly monitored.

Here, the equipment state detection sensor 12 detects the state of the bearing 10 to be monitored, the light emitter 13 emits light according to the state of the bearing 10 detected by the equipment state detection sensor 12, and the camera device 14 emits light. An image of the body 13 is captured, and the image analysis device 15 analyzes the captured image captured by the camera device 14 and determines the state of the bearing 10 from the light emission state of the light emitter 13 . Therefore, it is not necessary to configure the equipment state detection sensor 12 with a wireless sensor and transmit the detection signal wirelessly. In addition, since the camera device 14 captures an image of the luminous body 13 that emits light according to the state of the bearing 10 detected by the equipment state detection sensor 12, there is no need to connect the equipment state detection sensor 12 to the camera device 14 by wire. Wiring work becomes cheaper. Also, the state of the bearing 10 that cannot be detected by the camera device 14, that is, the vibration state of the bearing can be monitored appropriately.
In addition, since the light emitters 13 are installed in a state of being exposed to the outside of the bearing (equipment) 10 , each light emitter 13 can be easily imaged by the camera device 14 .

Although the embodiment of the present invention has been described above, the present invention is not limited to this and can be modified and improved in various ways.
Although the equipment to be monitored is the bearing 10 in this embodiment, it is not limited to the bearing 10, and may be other equipment such as a belt conveyor pulley or other equipment other than the belt conveyor.
In addition, although the equipment state detection sensor 12 is a vibration sensor in this embodiment, it is not limited to this. A temperature sensor may be used, or if the object to be monitored is an electric motor, a current sensor for detecting the electric current value of the electric motor may be used.

In addition, the manner of light emission of the light emitters 13 according to the state of the facility is the same for all the light emitters 13 in the raw material yard A, but it is not necessarily the same, and may be changed as appropriate.
In addition, in the present embodiment, the light emission interval of the light emitting body 13 is changed according to the state of the facility (including the case where the light emitting body 13 does not emit light and the case where the light emitting body 13 always lights). However, it is not limited to this, and as described above, the color of emitted light may be changed according to the state of each facility detected by each of the facility state detection sensors 12 . In addition, changing the light emission interval according to the state of the equipment detected by each equipment state detection sensor 12 and changing the light emission color according to the state of the equipment detected by the equipment state detection sensor 12 are combined. You may do so.

Further, in this embodiment, one equipment state detection sensor 12 is installed in the bearing 10 as equipment, but as shown in FIG. 6, two equipment condition detection sensors 12 may be installed in the equipment, A greater number of equipment state detection sensors 12 may be installed.
In this embodiment, one light emitter 13 is connected to one equipment state detection sensor 12. However, as shown in FIG. 7, two equipment state detection sensors installed in two different equipment respectively One light emitter 13 may be connected to the sensor 12 , or one light emitter 13 may be connected to more equipment state detection sensors 12 . In this case, in the light emitter 13, the light emission state may be made different between the different equipment state detection sensors 12. FIG.

In addition, in order to periodically confirm that the equipment state detection sensor 12 and the light emitter 13 are operating normally, the lighting or blinking method indicating the normal state at a specific time is determined in advance, so that the equipment state can be detected. Failure of the sensor 12 and light emitter 13 can also be confirmed.
In addition, even when the equipment state detection sensor 12 and the light emitter 13 are operated by a battery, if the image of the light emitter 13 is in the imaging range of the camera device 14 and the light is emitted in a short period of time, the power consumption is extremely low. It is also possible to reduce it.

1 equipment condition monitoring device 10 bearing (equipment)
11 frame 12 facility state detection sensor 13 light emitter 14 camera device 15 image analysis device 16 image acquisition unit 17 facility state determination unit 18 light source position determination unit 19 storage unit 20 facility state determination result output unit 21 display device A raw material yard B field of view

Claims (10)

at least one facility state detection sensor installed in each of the plurality of facilities of the plurality of belt conveyors to be monitored and detecting the state of any one of vibration, sound, temperature, and current value of each facility;
It is connected to the equipment state detection sensor and is installed in a state of being exposed to the outside of the equipment, and according to any one of the vibration, sound, temperature, and current value of each equipment detected by the equipment condition detection sensor at least one light emitter that emits light in response;
a camera device that captures an image of the luminous body;
with
An image analysis device that analyzes the captured image captured by the camera device and determines the state of any one of vibration, sound, temperature, and current value of each facility from the light emission state of the light emitter,
The image analysis device pre-stores the position of the light-emitting body in the captured image, and detects any one of the pre-stored position of the light-emitting body in the captured image and the vibration, sound, temperature, and current value of each facility. A facility condition monitoring apparatus that determines whether or not a position of a light emitter used as a criterion for determining the condition matches . 2. The light-emitting body according to claim 1 , wherein the color of light emitted from the light-emitting body is changed according to any one of vibration, sound, temperature, and current value of each facility detected by the facility state detection sensor. equipment condition monitoring device. 3. The light emitter changes the interval of light emission according to any one of vibration, sound, temperature, and current value of each facility detected by the facility state detection sensor. Equipment condition monitoring device according to. 4. The facility condition monitoring apparatus according to claim 1 , wherein the camera device has a swinging mechanism. 5. The facility condition monitoring apparatus according to any one of claims 1 to 4 , wherein the camera device has a zoom-up function. A facility in which at least one facility state detection sensor installed in each of a plurality of facilities of a plurality of belt conveyors to be monitored detects the state of any one of vibration, sound, temperature, and current value of each facility. a state detection step;
At least one light emitter connected to the equipment state detection sensor and installed in a state of being exposed to the outside of the equipment detects the vibration, sound, temperature, and current value of each equipment detected in the equipment state detection step. a luminous body emitting step that emits light depending on the state of any of
an image capturing step in which the camera device captures an image of the light emitter;
including
An image analysis device composed of a computer system analyzes the captured image captured in the imaging step, and detects any one of vibration, sound, temperature, and current value of each facility from the light emission state of the light emitter. including an image analysis step to determine,
In the image analysis step, the image analysis device stores in advance the position of the light emitter in the captured image, and the position of the light emitter in the prestored captured image and the vibration, sound, temperature, and vibration of each facility in the captured image. A facility state monitoring method , comprising: a light emitter position determination step for determining whether or not a position of a light emitter used as a criterion for determining one of the current values matches the position of the light emitter . 7. The light-emitting body according to claim 6 , wherein the color of light emitted from the light-emitting body is changed according to any one of vibration, sound, temperature, and current value of each facility detected by the facility state detection sensor. equipment condition monitoring method. 8. The light-emitting body changes intervals of light emission according to any one of vibration, sound, temperature, and current value of each facility detected by the facility state detection sensor. The facility condition monitoring method described in . 9. The facility condition monitoring method according to any one of claims 6 to 8 , wherein the camera device has a swinging mechanism. 10. The facility condition monitoring method according to any one of claims 6 to 9 , wherein the camera device has a zoom-up function.

Images