WO2021084711A1

WO2021084711A1 - Monitoring system

Info

Publication number: WO2021084711A1
Application number: PCT/JP2019/042892
Authority: WO
Inventors: 久雄吉原; 泰之福本; 竜三高田; 貴之吉川
Original assignee: 株式会社パトライト
Priority date: 2019-10-31
Filing date: 2019-10-31
Publication date: 2021-05-06
Also published as: JPWO2021084711A1

Abstract

Provided is a monitoring system 1 that includes a first monitoring device 11 and a second monitoring device 12. The first monitoring device 11 includes a first acquisition unit 21 that acquires state information indicating the state of an object to be monitored, and a second acquisition unit 22 that acquires factor information indicating factors of the state. The first monitoring device 11 includes a first transmission unit 25 that transmits the state information to the second monitoring device 12, a second transmission unit 26 that transmits the factor information to the second monitoring device 12, and a first reception unit 27 that receives information from the second monitoring device 12. The second monitoring device 12 includes: a second reception unit 32 that receives the information transmitted from each of the first and second transmission units 25, 26; a second storage unit 33 that stores the information received by the second reception unit 32; and a third transmission unit 34. When the second reception unit 32 receives the state information, the third transmission unit 34 transmits, to the first reception unit 27, a request signal for requesting the factor information.

Description

Monitoring system

The present invention relates to a monitoring system.

Patent Document 1 discloses a centralized management system that collectively manages equipment provided in a plurality of districts. The centralized management system includes a central monitoring device installed in a centralized management center where an administrator is stationed, a terminal device installed in each facility, and a communication device installed in a service center where a service person is stationed. An abnormality detector that detects an abnormality in equipment is connected to the terminal device. When the abnormality detector detects an abnormality in the equipment, the terminal device provided in the equipment transmits an abnormality notification signal for transmitting the abnormality information regarding the abnormality to the central monitoring device. The abnormality information includes the identification number of the equipment in which the abnormality has occurred, the fact that the abnormality has occurred, and the content of the abnormality. Upon receiving the abnormality notification signal, the central monitoring device saves the abnormality information and transmits it to the communication device of the service center. When the service person stationed at the service center receives the abnormality information from the communication device, he / she goes to the equipment where the abnormality has occurred and performs the restoration work.

JP-A-2002-269664

Patent Document 1 does not assume that an abnormality occurring in equipment is analyzed. Specifically, in the case of the centralized management system of Patent Document 1, the abnormality information constituting the abnormality notification signal transmitted by the terminal device to the central monitoring device in response to the occurrence of an abnormality in the equipment is the abnormality of the equipment to be monitored. Although it contains state information indicating the state, it does not include factor information indicating the cause of the abnormality. Therefore, the administrator stationed at the centralized control center cannot identify the cause of the abnormality from the abnormality information. Although not explicitly stated in Patent Document 1, it is considered that the identification of the cause of the abnormality is left to the service person who performs the restoration work of the equipment in which the abnormality has occurred.

If the identified factor information is input to the central monitoring device by the service person or the administrator who received the report from the service person and is associated with the abnormal information stored in the central monitoring device, the administrator is central. Based on this information in the monitoring device, the current abnormality can be analyzed ex post facto, and the recurrence of the abnormality can be prevented based on the analysis result. On the other hand, a human error is assumed in which the service person or the administrator forgets to input the factor information into the central monitoring device. If the factor information is not input to the central monitoring device, the factor information cannot be associated with the corresponding abnormality information in the central monitoring device. Therefore, the administrator cannot grasp the cause of the abnormality with respect to the abnormality information to which the factor information is not associated, and therefore cannot analyze this abnormality.

Therefore, one embodiment of the present invention provides a monitoring system capable of promoting the association between the state information indicating the state of the monitored object and the factor information indicating the factor of the state.

The present invention provides a monitoring system including a first monitoring device and a second monitoring device communicatively connected to the first monitoring device. The first monitoring device includes a first acquisition unit that acquires state information indicating the state of the monitoring target, and a second acquisition unit that acquires factor information that indicates the factor of the state. The first monitoring device is from a first transmission unit that transmits the state information to the second monitoring device, a second transmission unit that transmits the factor information to the second monitoring device, and the second monitoring device. Includes a first receiver that receives information. The second monitoring device includes a second receiving unit that receives information transmitted by each of the first transmitting unit and the second transmitting unit, a storage unit that stores information received by the second receiving unit, and a storage unit that stores the information received by the second receiving unit. Includes a third transmitter. When the second receiving unit receives the state information, the third transmitting unit transmits a request signal requesting the factor information to the first receiving unit.

With this configuration, the state information indicating the state of the monitoring target is acquired by the first acquisition unit of the first monitoring device and transmitted to the second monitoring device by the first transmission unit. The state information transmitted to the second monitoring device is received by the second receiving unit and stored in the storage unit. In response to the reception of the state information by the second receiving unit, a request signal requesting factor information indicating the factor of the state is transmitted from the third transmitting unit to the first receiving unit of the first monitoring device. After that, when the factor information is acquired by the second acquisition unit of the first monitoring device, the factor information is transmitted to the second monitoring device by the second transmission unit. The factor information transmitted to the second monitoring device is received by the second receiving unit and stored in the storage unit.

In this way, when the status information of the monitoring target is transmitted from the first monitoring device to the second monitoring device, the second monitoring device requests the first monitoring device for the factor information corresponding to the status information. When the factor information is transmitted to the second monitoring device by the first monitoring device in response to the request of the second monitoring device, the factor information is stored in the storage unit in which the state information is already stored. This makes it possible to promote the association between the state information and the factor information in the storage unit.

In one embodiment of the present invention, the second monitoring device further includes a setting unit that sets identification information in the state information when the second receiving unit receives the state information. The storage unit stores the state information in association with the identification information. The third transmission unit associates the request signal with the identification information and transmits the request signal to the first reception unit.

With this configuration, the status information received by the second receiving unit of the second monitoring device is associated with the identification information set by the setting unit and stored in the storage unit. The request signal for requesting the factor information corresponding to the state information is transmitted from the third transmission unit to the first reception unit of the first monitoring device in association with the identification information associated with the state information. After that, when the factor information is acquired by the second acquisition unit of the first monitoring device, the factor information is transmitted to the second monitoring device by the second transmission unit and stored in the storage unit. If the factor information is associated with the identification information associated with the request signal, the association between the state information and the factor information can be promoted by extracting the state information and the factor information associated with the same identification information in the storage unit. ..

In one embodiment of the present invention, the state of the second acquisition unit can be changed between a possible state in which the factor information can be acquired and an impossible state in which the factor information cannot be acquired. The first monitoring device further includes a changing unit that changes the state of the second acquisition unit from the impossible state to the possible state when the first receiving unit receives the request signal.

With this configuration, in the first monitoring device, when the request signal corresponding to the reception of the state information by the second receiving unit of the second monitoring device is received by the first receiving unit, the second acquisition unit receives the factor information. It becomes possible to acquire. As a result, it is possible to prevent the factor information irrelevant to the state information from being acquired by the second acquisition unit before the request signal is received by the first reception unit. Therefore, appropriate factor information corresponding to the state information is acquired by the second acquisition unit, transmitted to the second monitoring device by the second transmission unit, and stored in the storage unit, so that the information is already stored in the storage unit. It is possible to accurately associate the relevant state information with the factor information corresponding to the relevant state information.

In one embodiment of the present invention, when the second acquisition unit in the enable state acquires the factor information, the change unit changes the state of the second acquisition unit from the enable state to the impossible state. To do.

With this configuration, in the first monitoring device, when the request signal corresponding to the reception of the state information by the second receiving unit of the second monitoring device is received by the first receiving unit, the second acquisition unit receives the factor information. Since the acquisition is possible, the factor information corresponding to the status information is acquired by the second acquisition unit. When the factor information is acquired by the second acquisition unit, the second acquisition unit is in an impossible state in which the factor information cannot be acquired. Therefore, the factor information unrelated to the state information is acquired by the second acquisition unit. Can be prevented. Therefore, appropriate factor information corresponding to the state information is acquired by the second acquisition unit, transmitted to the second monitoring device by the second transmission unit, and stored in the storage unit, so that the information is already stored in the storage unit. It is possible to accurately associate the relevant state information with the factor information corresponding to the relevant state information.

In one embodiment of the present invention, when the factor information is acquired by the second acquisition unit after the first receiving unit receives the request signal, the second transmitting unit receives the factor information. The identification information associated with the request signal is associated with the identification information and transmitted to the second monitoring device.

With this configuration, when the factor information requested by the request signal from the second monitoring device is acquired by the second acquisition unit of the first monitoring device, the factor information is identified by the second transmission unit associated with the request signal. After being linked to the information and transmitted to the second monitoring device, it is stored in the storage unit. Since the state information associated with the identification information associated with the request signal is already stored in the storage unit, the state is obtained by extracting the state information and the factor information associated with the same identification information in the storage unit. It is possible to promote the association between information and factor information.

In one embodiment of the present invention, the second monitoring device further includes a generation unit. When the second receiving unit receives the factor information, the generating unit includes the factor information and the state information already stored in the storage unit associated with the identification information associated with the factor information. Is associated with, and status factor information indicating the status of the monitored target and the factor of the status is generated.

With this configuration, the user who monitors the monitoring target by the monitoring system can use the status of the monitoring target and the status of the monitoring target based on the status information associated with the same identification information in the storage unit and the status factor information generated based on the factor information. Since the factors can be grasped, the state can be analyzed.

In one embodiment of the present invention, the monitoring system further includes a notification device that gives a predetermined notification when the first receiving unit receives the request signal.

With this configuration, when the second receiving unit of the second monitoring device receives the state information, a request signal requesting the factor information corresponding to the state information is transmitted from the third transmitting unit to the first monitoring device to receive the first reception. Since it is received by the unit, the notification device performs a predetermined notification accordingly. Therefore, the person who receives the notification can take necessary measures so that the factor information requested by the request signal is acquired by the second acquisition unit of the first monitoring device. As a result, the acquisition of the factor information by the second acquisition unit can be promoted, so that the factor information transmitted to the second monitoring device and stored in the storage unit after being acquired by the second acquisition unit corresponds to the state in the storage unit. Can facilitate association with information.

In one embodiment of the present invention, the second monitoring device further includes a command unit that orders the notification device to stop the notification when the generation unit generates the state factor information.

With this configuration, the person who has received the notification of the notification device can grasp that the factor information has been surely acquired by the second acquisition unit of the first monitoring device by stopping the notification of the notification device.

In one embodiment of the present invention, the monitoring system further includes a third monitoring device communicably connected to at least one of the first monitoring device and the second monitoring device. The second monitoring device further includes a notification unit that notifies the third monitoring device of the state factor information.

With this configuration, the user who uses the third monitoring device can analyze the state of the monitoring target related to this state factor information based on the state factor information notified from the second monitoring device to the third monitoring device.

In one embodiment of the present invention, the first monitoring device is provided separately from the first device having the first acquisition unit and the first transmission unit, and the second acquisition unit. It includes a second device having the second transmitting unit and the first receiving unit.

With this configuration, the state information indicating the state of the monitoring target is acquired by the first acquisition unit of the first device and transmitted to the second monitoring device by the first transmission unit. The state information transmitted to the second monitoring device is received by the second receiving unit and stored in the storage unit. In response to the reception of the state information by the second receiving unit, a request signal requesting the factor information indicating the factor of the state is transmitted from the third transmitting unit to the first receiving unit of the second device. After that, when the factor information is acquired by the second acquisition unit of the second device, the factor information is transmitted to the second monitoring device by the second transmission unit. The factor information transmitted to the second monitoring device is received by the second receiving unit and stored in the storage unit.

In this way, when the status information of the monitoring target is transmitted from the first device to the second monitoring device, the second monitoring device requests the second device for factor information corresponding to the status information. When the factor information is transmitted to the second monitoring device by the second device in response to the request of the second monitoring device, the factor information is stored in the storage unit in which the state information is already stored. This makes it possible to promote the association between the state information and the factor information in the storage unit.

It is a schematic diagram for demonstrating the monitoring system which concerns on one Embodiment of this invention. It is a block diagram for demonstrating an example of an electrical configuration of a monitoring system. It is a figure which shows the table stored in the 2nd monitoring apparatus which constitutes a monitoring system. It is a block diagram for demonstrating the electrical configuration example of the monitoring system which concerns on the modification of this invention.

FIG. 1 is a schematic diagram for explaining a monitoring system 1 according to an embodiment of the present invention. The monitoring system 1 is provided, for example, at the work site of a factory. At the work site, one or more mechanical devices M to be monitored by the monitoring system 1 are installed. The mechanical device M in this embodiment is an assembly device for assembling a product or a semi-finished product by assembling a part to another part, but is a processing device for processing the part or the like and a measuring device for performing various measurements on the part or the like. Alternatively, it may be a transport device for transporting parts and the like. A device ID for identifying each mechanical device M is assigned to each mechanical device M. The monitoring system 1 includes a signal indicator light 2 attached to each mechanical device M at a work site, and an operation unit 3 arranged around the signal indicator light 2.

The signal indicator light 2 is connected to the control device 4 that controls the mechanical device M corresponding to the signal indicator light 2 via a wired or wireless signal line 5 which is a communication line by a connection technology such as IO-Link. There is. The control device 4 may be a programmable logic controller (PLC) that controls the operation of the corresponding mechanical device M. The information output from the control device 4 is input to the signal indicator lamp 2 via the signal line 5. This information is state information representing the state of the mechanical device M. The state of the mechanical device M in this embodiment has a plurality of types of a normal state, a caution state, and an emergency state in ascending order of urgency, and there are also a plurality of types of state information accordingly. The state information may be a different pulse signal depending on the type.

The mechanical device M in normal operation is in a normal state. For example, the mechanical device M, which is out of stock or is waiting for the processed parts to be carried out, is in a caution state. The shortage of parts and the waiting for carrying out parts and the like are one of the factors of the attention state of the mechanical device M. For example, the mechanical device M in which an oil leak occurs or the jig is damaged is in an emergency state and, in principle, is abnormally stopped. Oil leakage and jig breakage are each one of the causes of the emergency condition of the mechanical device M. In addition to the above-exemplified factors, there are a plurality of factors for each of the attention state and the emergency state.

The signal indicator 2 in this embodiment has a columnar basic form as a whole. The signal indicator 2 includes a base 6 fixed in place in the mechanical device M and a notification device 7 supported by the base 6. The base 6 is formed in a columnar shape (typically a columnar shape). The notification device 7 is configured in a columnar shape (for example, a columnar shape) having a size and shape that matches the base 6. The notification device 7 includes a first display unit 71 laminated on the base 6, a second display unit 72 laminated on the first display unit 71, and a third display unit laminated on the second display unit 72. 73 and a fourth display unit 74 laminated on the third display unit 73 are included. Such a signal indicator lamp 2 is a so-called laminated signal lamp.

Each of the first display unit 71, the second display unit 72, the third display unit 73, and the fourth display unit 74 (hereinafter, collectively referred to as “display unit 70”) surrounds the light source 8 and the periphery of the light source 8. Includes a tubular (eg, cylindrical) glove 9 to cover. The light source 8 of this embodiment is a light emitting diode. The glove 9 of this embodiment is colorless and transparent or white translucent, and emits the light emitted by the light source 8 to the outside in the same color. The emission color of the light source 8 is the display color of the display unit 70. In this embodiment, the display color of the first display unit 71 is green, the display color of the second display unit 72 is yellow, the display color of the third display unit 73 is red, and the display color of the fourth display unit 74 The display color is blue. Therefore, in the first display unit 71, the second display unit 72, the third display unit 73, and the fourth display unit 74, the emission color of the light source 8 may be different depending on the respective display colors, or the light emission color of the light source 8 may be different. The emission color may be the same color (for example, white), and the glove 9 may be colored with the corresponding display color.

In each signal indicator 2, the light source 8 in one or more display units 70 selectively emits light. The notification device 7 of the signal indicator light 2 variably displays the state information indicating the state of the mechanical device M associated with the signal indicator lamp 2 by the display color of any of the display units 70. The state information may be variably displayed according to the lighting pattern (lighting, blinking, flash, etc.) of the display unit 70. "Blinking" refers to a lighting pattern in which a constant short-time lighting and a constant short-time extinguishing light are periodically repeated. "Flash" is a lighting pattern that periodically repeats a constant extremely short-time lighting (lighting for a shorter time than blinking) and then a fixed short-time extinguishing (lighting for a longer time than the lighting time). To say.

The operation unit 3 is operated by a user such as a worker at the work site. In this embodiment, the operation unit 3 is a reading unit such as a reader that reads a two-dimensional code such as a bar code or an IC card code such as an employee ID card (hereinafter, may be collectively referred to as "code C"). It is connected to the corresponding signal indicator light 2 via a wired or wireless signal line 10. A plurality of codes C are provided according to various factors regarding the state of the mechanical device M, and the plurality of codes C are pre-printed on a list L installed at the work site. Each code C contains factor information representing the corresponding factor. From the factor information, the above-mentioned factors (such as missing parts and oil leaks) can be identified. As will be described in detail later, when the user identifies the factor of the state of the mechanical device M, the operation unit 3 reads the code C including the factor information representing this factor. The factor information read by the operation unit 3 is input to the signal indicator lamp 2 via the signal line 10. As the operation unit 3, for example, a switch whose operation method differs depending on the factor information may be used instead of the reading unit. Further, the factor information may be automatically input to the signal indicator 2 by the control device 4 instead of the operation of the operation unit 3 by the user.

The monitoring system 1 is installed as a host computer, for example, in a first monitoring device 11 built in the base 6 of the signal indicator light 2 and in a control room (which may be outside the work site) away from the work site, for example, in a factory. It further includes a functional second monitoring device 12 and a third monitoring device 13 that is placed in the control room or carried by a manager or site manager who manages the entire factory. The first monitoring device 11 and the second monitoring device 12 are communicably connected to each other via a wired or wireless network 14. As the network 14, communication by a connection technology such as IO-Link or Zigbee (registered trademark) can be used. The third monitoring device 13 is communicably connected to at least one of the first monitoring device 11 and the second monitoring device 12 via the network 14. The third monitoring device 13 when connected to the second monitoring device 12 may be directly connected to the second monitoring device 12 without going through the network 14 (see the personal computer 13A described later).

FIG. 2 is a block diagram for explaining an example of an electrical configuration of the monitoring system 1. The first monitoring device 11 includes a first acquisition unit 21 that acquires state information output from the control device 4, and a second acquisition unit 22 that acquires factor information from the operation unit 3. The first acquisition unit 21 is an interface unit connected to the signal line 5 connected to the control device 4. The second acquisition unit 22 is an interface unit connected to the signal line 10 connected to the operation unit 3. The state of the second acquisition unit 22 can be changed between a possible state in which factor information can be acquired (for example, an ON state) and an impossible state in which factor information cannot be acquired (for example, an OFF state), and is on standby. Is in an impossible state.

The first monitoring device 11 includes a first control unit 23 configured by a CPU (central processing unit) and a first storage unit 24 that stores the device ID and the like of the mechanical device M corresponding to the signal indicator lamp 2. From the device ID of the mechanical device M, not only the mechanical device M but also the first monitoring device 11 corresponding to the mechanical device M can be specified. Identification information such as a MAC address is assigned to the first monitoring device 11, and the first monitoring device 11 may be identified by this identification information. The same applies to other monitoring devices. The first control unit 23 receives the state information acquired by the first acquisition unit 21, receives the factor information acquired by the second acquisition unit 22, acquires the device ID and the like from the first storage unit 24, and so on. 1 Storage unit 24 stores new information. The first control unit 23 also functions as an example of a change unit that changes the state of the second acquisition unit 22 into a possible state and an impossible state.

The first monitoring device 11 has a first transmission unit 25 that transmits the state information acquired by the first acquisition unit 21 to the second monitoring device 12 under the control of the first control unit 23, and a factor acquired by the second acquisition unit 22. It further includes a second transmitting unit 26 that transmits information to the second monitoring device 12 under the control of the first controlling unit 23, and a first receiving unit 27 that receives information from the second monitoring device 12. The first control unit 23 receives the information received by the first reception unit 27. Each of the first transmitting unit 25, the second transmitting unit 26, and the first receiving unit 27 is an interface unit connected to the network 14. One transmission / reception unit may also serve as a first transmission unit 25, a second transmission unit 26, and a first reception unit 27.

The notification device 7 is electrically connected to the first control unit 23, and the first control unit 23 controls the light emission of each display unit 70 in the notification device 7. In this embodiment, when the mechanical device M is in the normal state, the state information indicating the normal state is output from the control device 4 and acquired by the first acquisition unit 21, so that the first control unit 23 The first display unit 71 is made to emit light in green. When the mechanical device M is in the attention state, the state information indicating the attention state is output from the control device 4 and acquired by the first acquisition unit 21, so that the first control unit 23 is the second display unit 72. Is emitted in yellow. When the mechanical device M is in an emergency state, the state information indicating the emergency state is output from the control device 4 and acquired by the first acquisition unit 21, so that the first control unit 23 is the third display unit 73. Is emitted in red. As an example, the fourth display unit 74 that emits light in blue is not normally used, but is used in a special case described later. The first control unit 23 may control the light emission of each display unit 70 by transmitting a signal to the notification device 7, or each display unit 70 by controlling a contact (not shown) in the notification device 7. You may control the light emission of.

The second monitoring device 12 receives information transmitted by the second control unit 31 configured by the CPU and the first transmission unit 25 and the second transmission unit 26 of the first monitoring device 11. 32 includes a second storage unit 33 as an example of a storage unit that stores information received by the second reception unit 32. The second monitoring device 12 uses a third transmitting unit 34 that transmits a request signal requesting factor information to the first receiving unit 27 of the first monitoring device 11 under the control of the second control unit 31, and a clock in this embodiment. It further includes a configured setting unit 35. Each of the second receiving unit 32 and the third transmitting unit 34 is an interface unit connected to the network 14. One transmitting / receiving unit may also serve as a second receiving unit 32 and a third transmitting unit 34. The second control unit 31 receives the information received by the second receiving unit 32, acquires the information from the second storage unit 33, and stores new information in the second storage unit 33. The second storage unit 33 may be an internal memory provided in the second monitoring device 12 as in this embodiment, or may be provided outside the second monitoring device 12 as a so-called cloud server. ..

The third monitoring device 13 may be a personal computer 13A including an input unit 40 configured by a keyboard or the like and a display unit 41 such as a monitor, or may be a mobile terminal such as a so-called smart watch 13B. Good (see Figure 1). The personal computer 13A is communicably connected to the second monitoring device 12 via a signal line 42 (see FIG. 1). The smart watch 13B is carried by the above-mentioned manager or site manager. Other mobile terminals include mobile phones, smartphones and tablet terminals.

Next, the processing executed in the monitoring system 1 will be described. In the first monitoring device 11, state information indicating the latest state of the mechanical device M is periodically output from the control device 4 and acquired by the first acquisition unit 21, and the first control unit 23 acquires the acquired state information. Is linked to the device ID acquired from the first storage unit 24 and transmitted from the first transmission unit 25 to the second monitoring device 12. This state information is information representing the facts of any of the normal state, the attention state, and the emergency state, and may be any of green, yellow, and red color information corresponding to these states. The state information may be transmitted from the first monitoring device 11 to the second monitoring device 12 each time the state information is acquired by the first acquisition unit 21, and when there is a change in the state information, the changed state information is displayed. It may be transmitted from the first monitoring device 11 to the second monitoring device 12.

The state information transmitted to the second monitoring device 12 is received by the second receiving unit 32 of the second monitoring device 12. The second state information received by the second receiving unit 32 indicates a caution state (yellow) or an emergency state (red) of the machine device M, that is, when the urgency of the state of the machine device M is equal to or higher than a predetermined value. In the monitoring device 12, the second control unit 31 sets the identification information in the state information by the setting unit 35. The identification information in this embodiment is the current date and time indicated by the clock constituting the setting unit 35 (the date and time when the second receiving unit 32 receives the state information), but unique information for each state information is provided other than the current date and time. It can be used alone or in combination as identification information. As another example of the identification information, it may be the elapsed time from the predetermined date and time to the current date and time, or it may be the order in which the second receiving unit 32 receives the state information. Further, as the identification information, the date and time when the first acquisition unit 21 acquired the state information, the date and time when the first transmission unit 25 transmitted the state information, and the like may be used, and the first monitoring device 11 and the second monitoring device may be used. 12 may synchronize or correct the time as appropriate.

The second control unit 31 stores the state information for which the identification information is set (including the device ID already associated with the state information) in the second storage unit 33 in association with the identification information. Specifically, the second storage unit 33 is provided with a table T (see FIG. 3), and the identification information is set in the state information and the device ID and identification information associated with the state information. (In this embodiment, the order of the date and time represented by the identification information) is stored in the table T (see the storage area for the identification information in the table T of FIG. 3 at 10:05:30 on November 30, 2019). ). Then, the second control unit 31 associates the request signal requesting the factor information corresponding to the current state information with the identification information associated with the state information, and the third transmission unit 34 transmits the state information. Is transmitted to the first receiving unit 27 of the first monitoring device 11 of the above. The request signal includes a command for requesting factor information, destination information indicating a destination of the request signal (for example, the MAC address of the first monitoring device 11), and identification information.

In the first monitoring device 11 that transmits the state information, when the first receiving unit 27 receives the request signal, the first control unit 23 changes the state of the second acquisition unit 22 from the impossible state to the possible state. To do. Further, the first control unit 23 causes the fourth display unit 74 of the notification device 7 to emit blue light. That is, when the first receiving unit 27 receives the request signal, the notification device 7 performs a predetermined notification of light emission in blue.

The user who sees the blue light emission of the notification device 7 at the work site identifies the factor of the state of the mechanical device M as described above by grasping that the factor information is waiting to be input, and expresses this factor. The code C including the factor information is found in the list L and read by the operation unit 3. The factor information read by the operation unit 3 is acquired by the second acquisition unit 22 which is in a possible state in the first monitoring device 11. Then, in the first monitoring device 11, the second transmission unit 26 associates the factor information with the identification information associated with the request signal and transmits the response signal to the second monitoring device 12, and the first control unit 23 changes the state of the second acquisition unit 22 from the possible state to the impossible state. The response signal includes destination information (for example, the MAC address of the second monitoring device 12) indicating the transmission destination of the response signal, identification information, and factor information. The user may read the user identification information such as the name and employee number in the code C of his / her employee ID card (not shown) by the operation unit 3, and the response signal in that case also includes the user identification information.

In the second monitoring device 12, the second receiving unit 32 receives the factor information transmitted by the second transmitting unit 26. Then, the second control unit 31 of the second monitoring device 12 stores the factor information in the table T of the second storage unit 33. At that time, the second control unit 31 generates the state factor information by associating the state information already stored in the table T with the identification information associated with the factor information in the table T. (See Fig. 3). The state factor information represents the state of the mechanical device M and the factor of the state by including both the state information and the factor information (the identification information in the table T of FIG. 3 is "2019/11/30 12:01". : 18 ”). The second control unit 31 functions as an example of a generation unit that generates state factor information. The user identification information described above may also be registered in the table T as a part of the state factor information.

The second control unit 31 sends a notification stop signal directed to the notification device 7 from the third transmission unit 34 to the first reception unit of the first monitoring device 11 from which the factor information is transmitted, in response to the generation of the state factor information. Send to 27. The first control unit 23 of the first monitoring device 11 that has received the notification stop signal turns off the fourth display unit 74 that was emitting blue light in the notification device 7. In this way, the second control unit 31 functions as an example of a command unit that orders the notification device 7 to stop the notification when the state factor information is generated. In the notification device 7, the waiting for input of the factor information is canceled by turning off the fourth display unit 74.

The second control unit 31 that has generated the state factor information notifies the personal computer 13A and / or the smart watch 13B (see FIG. 1) of the third monitoring device 13 by functioning as an example of the notification unit. You may. When the state factor information is notified to the personal computer 13A, it is displayed on the display unit 41 of the personal computer 13A. In that case, the display unit 41 functions as a monitoring monitor. When the state factor information is notified to the smart watch 13B, it is displayed on the display unit 43 (see FIG. 1) of the smart watch 13B. When the state factor information satisfies a predetermined condition, that is, when the urgency of the state to be monitored is higher than the predetermined value due to a specific factor (for example, when the mechanical device M is urgently stopped due to a failure), the state factor The information may be transmitted to the personal computer 13A or the smart watch 13B.

As described above, according to this embodiment, the state information indicating the state of the mechanical device M to be monitored is acquired by the first acquisition unit 21 of the first monitoring device 11 and secondly monitored by the first transmission unit 25. It is transmitted to the device 12. The state information transmitted to the second monitoring device 12 is received by the second receiving unit 32 and stored in the table T of the second storage unit 33. In response to the reception of the state information by the second receiving unit 32, a request signal requesting factor information indicating the factor of the state is transmitted from the third transmitting unit 34 to the first receiving unit 27 of the first monitoring device 11. After that, when the factor information is acquired by the second acquisition unit 22 of the first monitoring device 11, the factor information is transmitted to the second monitoring device 12 by the second transmission unit 26. The factor information transmitted to the second monitoring device 12 is received by the second receiving unit 32 and stored in the table T.

In this way, when the state information of the mechanical device M is transmitted from the first monitoring device 11 to the second monitoring device 12, the second monitoring device 12 transmits the factor information corresponding to the state information to the first monitoring device 11. Request. When the factor information is transmitted to the second monitoring device 12 by the first monitoring device 11 in response to the request of the second monitoring device 12, the factor information is stored in the table of the second storage unit 33 in which the state information is already stored. It is stored in T. This makes it possible to promote the association between the state information and the factor information in the second storage unit 33.

The state information received by the second receiving unit 32 of the second monitoring device 12 is associated with the identification information newly set by the setting unit 35 and stored in the table T. The request signal for requesting the factor information corresponding to the state information is transmitted from the third transmission unit 34 to the first reception unit 27 of the first monitoring device 11 in association with the identification information associated with the state information. After that, when the factor information is acquired by the second acquisition unit 22 of the first monitoring device 11, the factor information is transmitted to the second monitoring device 12 by the second transmission unit 26 and stored in the table T. Since the factor information is associated with the identification information associated with the request signal, the association between the state information and the factor information is promoted by extracting the state information and the factor information associated with the same identification information in the table T. it can.

In the first monitoring device 11, when the request signal corresponding to the reception of the state information by the second receiving unit 32 of the second monitoring device 12 is received by the first receiving unit 27, the second acquisition unit 22 causes the factor information. Will be available for acquisition. As a result, it is possible to prevent the second acquisition unit 22 from acquiring the factor information irrelevant to the state information before the request signal is received by the first reception unit 27. Therefore, appropriate factor information corresponding to the state information is acquired by the second acquisition unit 22, transmitted to the second monitoring device 12 by the second transmission unit 26, and stored in the table T, so that the table T is already stored. The stored state information can be accurately associated with the factor information corresponding to the state information.

In the first monitoring device 11, when the request signal corresponding to the reception of the state information by the second receiving unit 32 of the second monitoring device 12 is received by the first receiving unit 27, the second acquisition unit 22 causes the factor information. Is available, so the factor information corresponding to the state information is acquired by the second acquisition unit 22. When the factor information is acquired by the second acquisition unit 22, the second acquisition unit 22 is in an impossible state in which the factor information cannot be acquired. Therefore, the factor information unrelated to the state information is the second acquisition unit 22. Can be prevented from being acquired by. Therefore, appropriate factor information corresponding to the state information is acquired by the second acquisition unit 22, transmitted to the second monitoring device 12 by the second transmission unit 26, and stored in the table T, so that the table T is already stored. The stored state information can be accurately associated with the factor information corresponding to the state information.

When the factor information requested by the request signal from the second monitoring device 12 is acquired by the second acquisition unit 22 of the first monitoring device 11, the factor information is identified by the second transmission unit 26 associated with the request signal. After being associated with the information and transmitted to the second monitoring device 12, it is stored in the table T. Since the state information associated with the identification information associated with the request signal is already stored in the table T, the state information and the factor information associated with the same identification information can be extracted in the table T. It is possible to promote the association between the state information and the factor information.

The state information associated with the same identification information in the table T and the state factor information generated based on the factor information are displayed on the display unit 41 of the personal computer 13A and the display unit 43 of the smart watch 13B. Therefore, the user who monitors the monitoring target can grasp the state of the monitoring target and the factor of the state from the state factor information displayed on the display unit 41 and the display unit 43, so that the analysis of the state can be performed. The identification information may be displayed on the personal computer 13A or the smart watch 13B together with the state factor information. The identification information of this embodiment includes a date and time. Further, the device ID of the mechanical device M in which the abnormality has occurred is also associated with the state information in the state factor information. Thereby, for example, the user can efficiently analyze the abnormality by identifying the mechanical device M in which the abnormality has occurred and grasping the date and time, the content, and the cause of the abnormality.

When the second receiving unit 32 of the second monitoring device 12 receives the state information, a request signal requesting factor information corresponding to the state information is transmitted from the third transmitting unit 34 to the first monitoring device 11 for the first reception. Since it is received by the unit 27, the notification device 7 performs a predetermined notification (notification by blue light emission in the fourth display unit 74) in response to the reception. Therefore, the person who receives the notification at the work site takes necessary measures (in this embodiment, the operation unit 3) so that the factor information requested by the request signal is acquired by the second acquisition unit 22 of the first monitoring device 11. Code C can be read). As a result, the acquisition of the factor information by the second acquisition unit 22 can be promoted. Therefore, the factors that are acquired by the second acquisition unit 22 and then transmitted to the second monitoring device 12 and stored in the table T of the second storage unit 33. The association between the information and the corresponding state information in the table T can be facilitated. The person who has received the notification of the notification device 7 stops the notification of the notification device 7 (turns off the fourth display unit 74) that the factor information has been surely acquired by the second acquisition unit 22 of the first monitoring device 11. ) Can be grasped.

FIG. 4 is a block diagram for explaining an electrical configuration example of the monitoring system 1 according to a modified example of the present invention. Hereinafter, the parts that are functionally the same as the parts described with respect to the above-described embodiment are designated by the same numbers, and detailed description of the parts will be omitted.

In the above-described embodiment, the first monitoring device 11 transmits both the state information and the factor information to the second monitoring device 12, but even if the device for transmitting the state information and the device for transmitting the factor information are different. Good. In that case, the first monitoring device 11 may be separated into a first device 51 and a second device 52 provided separately from the first device 51. The first device 51 has a first acquisition unit 21 and a first transmission unit 25, and the second device 52 has a second acquisition unit 22, a second transmission unit 26, and a first reception unit 27. The first control unit 23 described above is divided into a first A control unit 23A that controls the first device 51 and a first B control unit 23B that controls the second device 52.

The state information indicating the state of the monitoring target is acquired by the first acquisition unit 21 of the first device 51, and is transmitted from the first transmission unit 25 to the second monitoring device 12 by the first A control unit 23A. The state information transmitted to the second monitoring device 12 is received by the second receiving unit 32 and stored in the second storage unit 33. In response to the reception of the state information by the second receiving unit 32, a request signal requesting factor information indicating the factor of the state is transmitted from the third transmitting unit 34 to the first receiving unit 27 of the second device 52. After that, when the factor information is acquired by the second acquisition unit 22 of the second device 52, the factor information is transmitted from the second transmission unit 26 to the second monitoring device 12 by the first B control unit 23B. The factor information transmitted to the second monitoring device 12 is received by the second receiving unit 32 and stored in the second storage unit 33. When the request signal is transmitted to the second device 52, the fourth display unit 74 of the notification device 7 emits blue light under the control of the first B control unit 23B to notify the user of waiting for input of factor information. To do. Further, the light emission of green, yellow and red in the notification device 7 is controlled by the first A control unit 23A.

In this way, when the state information of the monitoring target is transmitted from the first device 51 to the second monitoring device 12, the second monitoring device 12 requests the second device 52 for the factor information corresponding to the state information. When the factor information is transmitted to the second monitoring device 12 by the second device 52 in response to the request of the second monitoring device 12, the factor information is stored in the second storage unit 33 in which the state information is already stored. To. This makes it possible to promote the association between the state information and the factor information in the second storage unit 33.

Although the embodiments of the present invention have been described above, the present invention can also be implemented in other embodiments.

(1) For example, in the signal indicator light 2, the first control unit 23 may be included in the notification device 7. In that case, the first monitoring device 11 transmits state information and factor information to the second monitoring device 12 without performing display control of each display unit 70 of the notification device 7, or a request signal from the second management device. Functions as a transmitter / receiver for receiving. Such a transmitter / receiver may be provided, for example, on the head cover 80 (see FIG. 1) at the upper end of the notification device 7, or may be provided as a device separate from the signal indicator lamp 2. The first device 51 and the second device 52 in the modified example may also be provided as devices different from the signal indicator lamp 2.

(2) The signal indicator lamp 2 may have a configuration in which the notification device 7 includes only one display unit 70, instead of the above-mentioned laminated signal lamp. In that case, the light source 8 in the display unit 70 is a full-color light source or a multi-color light source capable of emitting a plurality of colors, and the globe 9 is colorless and transparent or white translucent, and the light emitted by the light source 8 is used as it is. Let it be released to the outside in color. Therefore, the emission color of the light source 8 becomes the display color of the notification device 7. Further, the fourth display unit 74 that emits blue light in response to the request signal may be provided separately from the notification device 7.

(3) When a plurality of emergency states occur consecutively in the mechanical device M, or when a caution state and an emergency state occur consecutively, the state information indicating the last state in these states is referred to. Factor information may be requested from the second monitoring device 12 to the first monitoring device 11. In this case, the factor information is associated with the state information of the last state and registered in the table T, but the state information of the state before the last state is "factor" instead of the factor information. Flags such as "information unknown" or "other" are associated and registered in the table T. In that case, the person who sees the table T can grasp that the cause of the state information associated with this flag is unknown.

(4) In the above-described embodiment, the identification information associated with the state information is set by the second monitoring device 12, but is set by the first control unit 23 or the like of the first monitoring device 11, and is set together with the state information. 2 It may be transmitted to the monitoring device 12.

(5) The state information transmitted from the first monitoring device 11 to the second monitoring device 12 may be displayed on the display unit 41 of the personal computer 13A, for example. The user who sees the display unit 41 can select the state information for which the factor information is required by operating the input unit 40 or the like of the personal computer 13A. The display unit 41 may be configured by a touch panel. In that case, the user can select the state information for which the factor information is required by operating the display unit 41. A request signal is transmitted to the first monitoring device 11 that is the source of the status information according to the selection by the user. In this case, the input unit 40 and the display unit 41 function as a selection unit for selecting state information for which factor information is required, and a request signal transmission unit for transmitting a request signal to the first monitoring device 11.

(6) The second control unit 31 of the second monitoring device 12 identifies the unprocessed state information for which the state factor information has not been generated from the table T of the second storage unit 33, and describes the state information. The request signal may be transmitted to the first monitoring device 11.

(7) The state information input from the control device 4 to the first monitoring device 11 and the state information transmitted from the first monitoring device 11 to the second monitoring device 12 are the same if the purpose is the same. It may not be formally different. The factor information does not have to be the same when it is input from the operation unit 3 to the first monitoring device 11 and when it is transmitted from the first monitoring device 11 to the second monitoring device 12.

(8) In the above-described embodiment, when the state information transmitted from the first monitoring device 11 to the second monitoring device 12 represents a caution state or an emergency state of the mechanical device M, the second monitoring device 12 has the state. Identification information is set in the information, and the request signal is transmitted to the first monitoring device 11. Of course, even when the state information indicating the normal state of the mechanical device M is transmitted from the first monitoring device 11 to the second monitoring device 12, the second monitoring device 12 sets the identification information for this state information. A request signal may be transmitted to the first monitoring device 11. The factor information required by the request signal in this case is, for example, information on the item of the part processed by the mechanical device M, information on the worker in charge, and the like. Further, when the first monitoring device 11 receives the state information indicating the caution state or the emergency state from the control device 4, the first monitoring device 11 may transmit the state information to the second monitoring device 12. In this case, the second monitoring device 12 sets the identification information for all the received state information and transmits the request signal to the first monitoring device 11. The state of caution may be regarded as an emergency state.

(9) Similar to the first monitoring device 11, the second monitoring device 12 is connected to the notification device 7 in a communicable and / or controllable manner, and even if the blue lighting of the fourth display unit 74 is controlled in particular. Good.

(10) The state information from the control device 4 may be input to the notification device 7 instead of the first monitoring device 11. In the notification device 7, the corresponding display unit 70 has a light emitting color corresponding to the state information. It emits light. In that case, the first acquisition unit 21 that acquires the state information in the first monitoring device 11 is a sensor such as an optical pickup that detects the light emission state (lighting information of the notification device 7) of the light emitting display unit 70 as the state information. It may be.

(11) When the network 14 is a mesh type network, the state information is not directly transmitted from the first monitoring device 11 to the second monitoring device 12, but is second-monitored via a relay device (not shown). It may be transmitted to the device 12. The same applies when the factor information is transmitted from the second monitoring device 12 to the first monitoring device 11. The same applies to the communication of other monitoring devices.

The various features described above can be combined as appropriate.

Although the embodiments of the present invention have been described in detail, these are merely specific examples used for clarifying the technical contents of the present invention, and the present invention is construed as being limited to these specific examples. Should not, the scope of the invention is limited only by the appended claims.

1 ... Monitoring system 7 ... Notification device 11 ... 1st monitoring device 12 ... 2nd monitoring device 13 ... 3rd monitoring device 21 ... 1st acquisition unit 22 ... 2nd acquisition unit 23 ... 1st control unit 25 ... 1st transmission unit 26 ... 2nd transmitting unit 27 ... 1st receiving unit 31 ... 2nd control unit 32 ... 2nd receiving unit 33 ... 2nd storage unit 34 ... 3rd transmitting unit 35 ... Setting unit 51 ... 1st device 52 ... 2nd device

Claims

A monitoring system including a first monitoring device and a second monitoring device communicatively connected to the first monitoring device.
The first monitoring device includes a first acquisition unit that acquires state information indicating the state of the monitoring target, a second acquisition unit that acquires factor information indicating the factor of the state, and the second monitoring device that obtains the state information. A first transmitting unit for transmitting information to the second monitoring device, a second transmitting unit for transmitting the factor information to the second monitoring device, and a first receiving unit for receiving information from the second monitoring device.
The second monitoring device includes a second receiving unit that receives information transmitted by each of the first transmitting unit and the second transmitting unit, a storage unit that stores information received by the second receiving unit, and a storage unit that stores the information received by the second receiving unit. A monitoring system including a third transmitting unit that transmits a request signal requesting the factor information to the first receiving unit when the second receiving unit receives the state information.
The second monitoring device further includes a setting unit that sets identification information in the state information when the second receiving unit receives the state information.
The storage unit stores the state information in association with the identification information, and stores the state information.
The monitoring system according to claim 1, wherein the third transmission unit associates the request signal with the identification information and transmits the request signal to the first reception unit.
The state of the second acquisition unit can be changed between a possible state in which the factor information can be acquired and an impossible state in which the factor information cannot be acquired.
2. The first monitoring device further includes a changing unit that changes the state of the second acquisition unit from the impossible state to the possible state when the first receiving unit receives the request signal. Described monitoring system.
The third aspect of the present invention, wherein when the second acquisition unit in the possible state acquires the factor information, the changing unit changes the state of the second acquisition unit from the possible state to the impossible state. Monitoring system.
When the factor information is acquired by the second acquisition unit after the first receiving unit receives the request signal, the second transmitting unit associates the factor information with the request signal. The monitoring system according to any one of claims 2 to 4, which is associated with information and transmitted to the second monitoring device.
When the second receiving unit receives the factor information, the second monitoring device is associated with the factor information and the identification information associated with the factor information and is already stored in the storage unit. The monitoring system according to claim 5, further comprising a generation unit that generates state factor information representing the state to be monitored and the factor of the state in association with the information.
The monitoring system according to claim 6, further comprising a notification device that gives a predetermined notification when the first receiving unit receives the request signal.
The monitoring system according to claim 7, wherein the second monitoring device further includes a command unit that orders the notification device to stop the notification when the generation unit generates the state factor information.
Further including a third monitoring device communicatively connected to at least one of the first monitoring device and the second monitoring device.
The monitoring system according to any one of claims 6 to 8, wherein the second monitoring device further includes a notification unit for notifying the third monitoring device of the state factor information.
The first monitoring device is provided separately from the first device having the first acquisition unit and the first transmission unit, and the first device, and the second acquisition unit, the second transmission unit, and the first device are provided separately. The monitoring system according to any one of claims 1 to 9, which includes a second device having one receiver.