JP2010258498A - Device to be managed and management system, and management program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a device to be managed and a management system that reliably store device information in abnormal ending, and to provide a management program. <P>SOLUTION: In the management system in which the device to be managed having a first storage area and a management device having a second storage area are connected together through a communication network, the device to be managed includes at least a first storage control unit which sequentially stores device information showing the state of its device into the first storage area when the state of its device changes, and a second storage control unit which transfers the device information stored in the first storage area to the second storage area of the management device. The management device includes at least a decision unit which determines whether the last ending state of the device to be managed is normal ending or abnormal ending, and reports the determination results to the device to be managed, and the second storage control unit transfers the device information when informed of the abnormal ending from the decision unit of the management device. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a managed apparatus, a management system, and a management program, and more particularly, to an image forming apparatus, a management system including the image forming apparatus, and a management program for managing a log when the image forming apparatus is abnormal.

  Image forming apparatuses such as MFPs (Multi Function Peripherals) having a copy function, a facsimile function, a printer function, a scanner function, and the like have become widespread. Since this image forming apparatus has a high operating rate and needs to operate stably, device information (log) indicating the state of the image forming apparatus is stored, and management of the image forming apparatus is performed based on the apparatus information. It is carried out.

  Here, the power of the image forming apparatus is turned off when the power is turned off after entering the idle state, when the image forming apparatus generates an error or warning, or when the image forming apparatus malfunctions or stops. There is an abnormal termination in which the power is turned off to eliminate the state. By collecting device information at the time of abnormal termination, it becomes easy to find out the cause of the abnormality.

  As a technique for collecting the device information, for example, the following Patent Document 1 includes a power-off detection unit that detects that a power source has been turned off. There is disclosed a printing apparatus having information collecting means for collecting information on the state of the printing apparatus and non-volatile storage means for storing information collected by the information collecting means.

JP 2008-37011 A

  However, since the device information is generated every time the state of the image forming apparatus changes, the device information stored at the time of abnormal termination is overwritten by the device information generated thereafter, and the device information at the time of abnormal termination is used. There is a problem that it cannot be done.

  With respect to this problem, it is possible to collect apparatus information when the power is turned off by using the technique of Patent Document 1. However, since this method cannot discriminate between abnormal end and normal end, the storage area is occupied by the device information at the normal end that occurs more frequently than the abnormal end, and the device information at the abnormal end is surely obtained. The problem that it is not possible to save the file occurs.

  Such a problem occurs not only in the image forming apparatus but also in all managed apparatuses that are required to collect and manage apparatus information at the time of abnormal termination.

  The present invention has been made in view of the above problems, and a main object thereof is to provide a managed device, a management system, and a management program capable of reliably storing device information at the time of abnormal termination.

  In order to achieve the above object, according to the present invention, in a managed device having a first storage area and a second storage area, when the state of the own apparatus changes, device information indicating the state of the own apparatus is sequentially updated. A first storage control unit that saves in one storage area, a determination unit that determines whether the previous end state of the own device is a normal end or an abnormal end, and when the determination unit determines an abnormal end, And a second storage control unit that stores the device information stored in the first storage area in the second storage area.

  According to the present invention, in a management system in which a managed device having a first storage area and a management device having a second storage area are connected via a communication network, the managed device has a status of its own device. When there is a change, device information indicating the state of the device itself is sequentially stored in the first storage area, and the device information stored in the first storage area is stored in the first storage area. A second storage control unit that transfers to two storage areas, and the management device determines whether the previous termination state of the managed device is normal termination or abnormal termination, and the managed device The second storage control unit is configured to transfer the device information when an abnormal end is notified from the determination unit of the management device.

  Further, the present invention provides a management system in which a managed device and a management device including a first storage area and a second storage area are connected via a communication network. The first storage control unit that acquires the device information indicating the state of the device, which is sequentially transferred when the state of the device changes, and stores the device information in the first storage area, and the previous end state of the managed device Is stored in the first storage area when the power-off of the managed device is detected and the determination unit determines that the process ends abnormally. A second storage control unit that stores the stored device information in the second storage area.

  Further, the present invention is a management program comprising a first storage area and a second storage area and operating on a computer device connected to the managed device via a communication network, wherein the computer device is moved from the managed device, A first storage control unit that acquires device information indicating the state of the device, which is sequentially transferred when the state of the device changes, and stores the device information in the first storage area, the previous end state of the managed device A determination unit for determining whether the device is normally terminated or abnormally terminated, and when the power-off of the managed device is detected, and the determination unit determines abnormal termination, the determination unit stores the data in the first storage area. Functioning as a second storage control unit that stores the stored device information in the second storage area.

  According to the managed device, the management system, and the management program of the present invention, the device information at the time of abnormal termination can be reliably stored.

  The reason is that in the management system, a first storage area for sequentially storing all device information and a second storage area for storing device information at the time of abnormal termination are provided. This is because control is performed to save the device information stored in the second storage area as device information at the time of abnormal termination.

It is a figure which shows typically the structure of the management system which concerns on one Embodiment of this invention. It is a figure which shows the operation | movement flow of the management system which concerns on one Embodiment of this invention, and the storage state of apparatus information. It is a figure which shows typically the structure of the management system which concerns on 1st Example of this invention. 1 is a block diagram illustrating a configuration of an image forming apparatus according to a first exemplary embodiment of the present invention. It is a block diagram which shows the structure of the management apparatus which concerns on 1st Example of this invention. FIG. 5 is a flowchart illustrating an operation (normal log storage control) of the image forming apparatus according to the first exemplary embodiment of the present invention. FIG. 5 is a flowchart illustrating an operation (log storage control at the time of abnormality) of the image forming apparatus according to the first exemplary embodiment of the present invention. 6 is a diagram illustrating a relationship between an operation state of the image forming apparatus and a log storage state in the management system according to the first exemplary embodiment of the present invention. FIG. It is a flowchart figure which shows operation | movement of the management apparatus which concerns on 1st Example of this invention. It is a figure which shows the normal / abnormal determination operation | movement using the communication information in the management apparatus which concerns on 1st Example of this invention. It is a flowchart figure which shows the normal / abnormal determination operation | movement using the environment information in the management apparatus which concerns on 1st Example of this invention. It is a block diagram which shows the structure of the image forming apparatus which concerns on 2nd Example of this invention. FIG. 6 is a flowchart illustrating a normal operation of an image forming apparatus according to a second embodiment of the present invention. FIG. 10 is a flowchart illustrating an operation (log storage control at the time of abnormality) of the image forming apparatus according to the second exemplary embodiment of the present invention. It is a block diagram which shows the structure of the management apparatus which concerns on 3rd Example of this invention. It is a flowchart figure which shows operation | movement (log storage control) of the management apparatus which concerns on 3rd Example of this invention.

  As shown in the background art, a managed device such as an image forming device can collect the device information at the time of abnormal termination, thereby making it easy to find out the cause of the abnormality and make the device operate stably. Can do.

  However, in the prior art, the device information at the time of abnormal termination is overwritten by the subsequent device information, and the device information at the time of abnormal termination cannot be reliably saved. Also, a method for collecting device information when the power is turned off has been proposed. However, since this method cannot distinguish between abnormal end and normal end, the storage area is occupied by the device information at the normal end. After all, there was a problem that the device information at the time of abnormal termination could not be saved reliably.

  Therefore, in an embodiment of the present invention, as shown in FIG. 2, in a management system in which at least the managed device 1 and the management device 2 are connected via a communication network, as shown in FIG. In the management system, only the first storage area (for example, the storage unit of the managed device) that sequentially stores device information (hereinafter referred to as a log) generated for each event and the log at the time of abnormal termination are stored. 2 storage areas (for example, storage units of other devices such as a management device, a managed device, and a server connected to a network) are provided.

  Then, as shown in FIG. 2, when the managed device 1 is powered on (S101), the management device or the managed device determines whether the previous termination state of the managed device was normal termination or abnormal termination ( S102) When it is determined that the abnormal end has occurred, the log stored in the first storage area is stored in the second storage area as a log at the time of abnormal end (S103), and then the steady operation log is sequentially stored in the first storage area. Then, overwriting control is performed (S104).

  Thereby, it is possible to prevent the log at the abnormal end from being overwritten, and the log at the abnormal end can be reliably saved. Further, since the second storage area stores only the log at the time of abnormal termination, the storage area can be used efficiently.

  The present invention can be applied to any managed apparatus that needs to manage logs. However, in the following embodiments, an image forming apparatus that is frequently used and requires stable operation is used. A case where the present invention is applied will be described.

  In order to describe the above-described embodiment of the present invention in more detail, an image forming apparatus, a management system, and a management program according to the first embodiment of the present invention will be described with reference to FIGS. FIG. 3 is a diagram schematically showing the configuration of the management system of this embodiment, FIG. 4 is a block diagram showing the configuration of the image forming apparatus, and FIG. 5 is a block diagram showing the configuration of the management device. 6, 7, and 9 are flowcharts illustrating the operation of the management system according to the present exemplary embodiment, and FIG. 8 is a diagram illustrating the relationship between the operation state of the image forming apparatus and the log storage state. FIG. 11 is a diagram illustrating a normal / abnormal determination method.

  As shown in FIG. 3, the management system of the present embodiment includes one or a plurality of image forming apparatuses 10 and one or a plurality of management apparatuses 20 that manage the image forming apparatus 10, and these include a LAN (Local Area Network). ) And WAN (Wide Area Network). Hereinafter, the image forming apparatus 10 and the management apparatus 20 will be described in detail.

[Image forming apparatus]
As shown in FIG. 4, the image forming apparatus 10 of this embodiment includes a control unit 11, a printing unit 12, a network connection unit 13, a storage unit 14, a display / operation unit 15, and the like. Connected by.

  The control unit 11 includes a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and the like. The CPU reads various programs stored in the ROM by operating the display / operation unit 15 and develops them in the RAM, and controls the operation of each unit of the image forming apparatus 10 according to the developed programs.

  The control unit 11 also stores a first storage control unit that sequentially overwrites and saves a log indicating the state of the image forming apparatus 10 in the first storage area, and a second storage that stores the log stored in the first storage unit 14a at the time of abnormal termination. It also functions as a second storage control unit that stores (transfers to the management apparatus 20 in this case) in the area. The first storage control unit and the second storage control unit may be configured as hardware, or may be configured as a management program that causes the image forming apparatus 10 to function as the first storage control unit and the second storage control unit. The program may be operated by the control unit 11.

  The printing unit 12 includes an image forming unit that forms an image to be printed on a transfer paper, a transfer unit that transfers the formed image to the transfer paper, a fixing unit that fixes the transferred image, a transport unit that transports the transfer paper, and an image forming unit. And a cleaning unit for cleaning each of the transfer unit and the fixing unit, and forms and outputs an image on a transfer sheet based on input data by an electrophotographic method.

  The network connection unit 13 includes a NIC (Network Interface Card), a modem, a LAN adapter, a router, a TA (Terminal Adapter), and the like, and performs communication control with the management apparatus 20 via a communication network.

  The storage unit 14 is configured by a flash memory, a hard disk, or the like, and stores various data and programs. In the present embodiment, in particular, a first storage area (first storage unit 14a) for storing all logs regardless of normal end / abnormal end is provided.

  The display / operation unit 15 includes a pressure-sensitive operation unit (touch panel) in which transparent electrodes are arranged in a grid on a display unit such as a liquid crystal display (LCD) or an organic EL (electroluminescence) display. An XY coordinate of a force point pressed with a finger or a touch pen is detected by a voltage value, and the detected position signal is output as an operation signal to the control unit 11.

[Management device]
Further, as shown in FIG. 5, the management apparatus 20 of this embodiment includes a control unit 21, a storage unit 22, a network connection unit 23, a display unit 24, an operation unit 25, and the like. Connected by.

  The control unit 21 includes a CPU, ROM, RAM, and the like. The CPU reads various programs stored in the ROM by operating the operation unit 25 and develops them in the RAM. The CPU controls the operation of each unit of the management device 20 according to the developed programs and transfers them from the image forming apparatus 10. The recorded log is stored in the second storage area (second storage unit 22a) as a log at the time of abnormal termination.

  In addition, the control unit 21 monitors the power supply state of the image forming apparatus 10, determines normal end / abnormal end based on communication information and environment information, and determines that the image forming apparatus 10 is turned off when it is determined to be abnormal end. When it is turned on again, it also functions as a determination unit that notifies the image forming apparatus 10 that the previous stop was an abnormal end. The determination unit may be configured as hardware, or may be configured as a management program that causes the management apparatus 20 to function as the determination unit, and the management unit may be operated by the control unit 21.

  The storage unit 22 is configured by a flash memory, a hard disk, or the like, and stores various data and programs. In the present embodiment, in particular, a second storage area (second storage unit 22a) for storing a log when the image forming apparatus 10 ends abnormally is provided.

  The network connection unit 23 includes a NIC, a modem, a LAN adapter, a router, a TA, and the like, and performs communication control with the image forming apparatus 10 connected via a communication network.

  The display unit 24 includes a liquid crystal display device, an organic EL display device, and the like, and displays various screens. The operation unit 25 includes a keyboard, a mouse, and the like, and enables various operations.

  3 to 5 are examples of the management system of the present embodiment, and the configuration can be appropriately changed as long as the operation of the present invention is possible.

  Next, the operation of the image forming apparatus in the management system of this embodiment will be described with reference to FIGS.

[Normal log storage control]
In the present embodiment, a “log saving flag” is used in order to prevent the log at the time of abnormal termination saved in the first storage area from being overwritten by a new log during the log recording operation to the first storage area. This “log saving flag” can be set to a predetermined value and is stored in the memory or the like of the control unit 11.

  Then, as shown in the flowchart in FIG. 6, when the image forming apparatus 10 performs some operation or when some state change occurs in the image forming apparatus 10 (S201), the control unit 11 (first storage control unit) Then, it is determined whether the “log saving flag” is set (S202). If the “log saving flag” is set, the log is saved in the first storage area (first storage unit 14a) (S203).

[Log storage control at abnormal termination]
As shown in the flowchart of FIG. 7, when the image forming apparatus 10 is turned on, the control unit 11 performs an initialization operation of the apparatus and resets a “log save flag” (S301). Next, the control unit 11 communicates with the management device 20 using the network connection unit 13, and acquires the previous termination factor (whether it was normal termination or abnormal termination) from the management device 20 (S302).

  Then, when the previous termination factor is abnormal termination (Yes in S303), the control unit 11 (second storage control unit) logs (the plurality of logs) stored in the first storage area (first storage unit 14a). If the log is stored, the latest log) is transferred to the management apparatus 20 as an abnormality log (S304). Thereafter, the control unit 11 sets a “log saving flag” (S305).

  In this way, by using the “log save flag”, it is possible to hold a log that is overwritten by the operation of the apparatus that occurs from the start of the apparatus to the log save, as shown in FIG. The log can be reliably transferred to the management device 20.

  Next, the operation of the management apparatus 20 will be described with reference to FIGS.

[Monitoring of image forming apparatus and log storage control at abnormal termination]
As shown in the flowchart of FIG. 9, the control unit 21 (determination unit) of the management apparatus 20 monitors the power state of the image forming apparatus 10 and detects power off (Yes in S401), image formation at that time The termination factor (normal termination or abnormal termination) is determined from the usage environment of the apparatus 10. The determination of the termination factor will be described later.

  Next, the control unit 21 (determination unit) monitors the power state of the image forming apparatus 10 and, when detecting power-on (Yes in S403), notifies the image forming apparatus 10 of the determined termination factor (S404).

  Next, the control unit 21 determines whether or not the abnormal end has been notified to the image forming apparatus 10 (S405). If the abnormal end is notified, the control unit 21 acquires a log at the abnormal end from the image forming apparatus 10 (S406). The acquired log at the time of abnormal termination is stored in the second storage area (second storage unit 22a) (S407).

  Next, two examples of the termination factor determination method in step S402 will be described.

[Abnormality detection using communication information]
As shown in FIG. 10, a message is transmitted from the management apparatus 20 to the image forming apparatus 10, and the image forming apparatus 10 returns a response message to the management apparatus 20. Communication. Further, when ending communication, the image forming apparatus 10 sends a message (end notification) indicating the end of communication as a response message.

  Then, the control unit 21 (determination unit) of the management apparatus 20 monitors the communication status, and as shown in (a), communication is interrupted after receiving the end notification (detection of power-off of the image forming apparatus 10). In this case, it is determined as normal termination, and as shown in (b), when communication is interrupted without receiving a termination notification (when power-off of the image forming apparatus 10 is detected), it is determined as abnormal termination.

[Abnormality detection using environmental information]
It is also possible to detect abnormality using environmental information. For example, when many people are working in a room where the image forming apparatus 10 is used, it is difficult to turn off the power of the image forming apparatus 10 during normal operation. Off can be considered abnormal termination. Therefore, various sensors are provided in the management system so that the management apparatus 10 can acquire information from the various sensors.

  As an operation in that case, as shown in the flowchart of FIG. 11, the control unit 21 (determination unit) of the management apparatus 20 acquires environmental information from various sensors (S501). As this environmental information, for example, the remaining number of rooms information acquired from the entrance / exit management device, the power usage of the room acquired from the power monitoring device, and the login acquired from the server that determines permission / non-permission of use of the image forming apparatus 10 There are number of people.

  Next, the control unit 21 (determination unit) compares the acquired environmental information with a reference value stored in advance in the storage unit 22 or the like (S502), and determines that the process has ended abnormally (S503) or completes normally. Is determined (S504). For example, in the above example, if the remaining number of people in the room, the amount of power used, and the number of people logged in to the server are larger than the reference value, it is determined that the process ends abnormally, and if it is less, the process ends normally. Here, when the acquired environmental information is larger than the reference value, the abnormal end is determined. However, this determination varies depending on the sensor used, and when the environmental information is larger than the reference value, the normal end may be determined.

  As described above, the management apparatus 20 determines the termination factor of the image forming apparatus 10 based on the communication information or the environment information, and transmits the determined termination factor to the image forming apparatus 10 when the power is turned on next time. Since the control to save the log transmitted from the second storage area as a log at the time of abnormality is performed, the log at the time of abnormality can be surely saved.

  Next, an image forming apparatus, a management system, and a management program according to a second embodiment of the present invention will be described with reference to FIGS. FIG. 12 is a block diagram illustrating a configuration of the image forming apparatus according to the present exemplary embodiment, and FIGS. 13 and 14 are flowcharts illustrating operations of the image forming apparatus according to the present exemplary embodiment.

  In the first embodiment described above, the log at the time of abnormal termination is stored in the storage unit 22 of the management apparatus 20, but the management system can be configured by the image forming apparatus 10 alone. In that case, as shown in FIG. 12, in addition to the first storage area (first storage section 14a), the storage section 14 of the image forming apparatus 10 is provided with a second storage area (second storage section 14b) and a control section. 11 is caused to function as a first storage control unit, a second storage control unit, and a determination unit (or a management program that causes the control unit 11 to function as a first storage control unit, a second storage control unit, and a determination unit is executed).

  Hereinafter, the operation of the image forming apparatus 10 will be described with reference to the flowcharts of FIGS. 12 and 13. Note that normal log storage control is the same as that in FIG. 6 of the first embodiment, and a description thereof will be omitted.

[Normal operation]
In this embodiment, since it is necessary on the image forming apparatus 10 side to determine whether the previous termination factor was normal or abnormal, the “normal termination flag” is used. This “normal end flag” can be set to a predetermined value and is stored in the memory of the control unit 11 or the like.

  Then, as shown in the flowchart of FIG. 13, the operation from the start to the end of the image forming apparatus 10 is performed (S601). When the process ends according to the normal end sequence, the control unit 11 sets the “normal end flag”. Set (S602).

[Log storage control at abnormal termination]
As shown in the flowchart of FIG. 14, when the image forming apparatus 10 is turned on, the control unit 11 performs an initialization operation of the apparatus and resets a “log storage flag” (S701). Next, the control unit 11 (determination unit) determines whether or not the “normal end flag” is set (S702).

  As a result of the determination, if the termination factor is abnormal termination (No in S702), the control unit 11 (second storage control unit) logs stored in the first storage area (first storage unit 14a) ( If a plurality of logs are stored, the latest log) is stored in the second storage area (second storage unit 14b) as a log at the time of abnormality (S703).

  Thereafter, the control unit 11 resets the “normal end flag” (S704), and then sets the “log save flag” (S705).

  As described above, in this embodiment, the first storage area (first storage section 14a) that sequentially stores all logs in the storage section 14 of the image forming apparatus 10 and the second storage area that stores only logs at the time of abnormal termination. (Second storage unit 14b) is provided, and the control unit 11 of the image forming apparatus 10 uses the “normal end flag” to determine the previous end factor, and if it is determined that the abnormal end has occurred, it is stored in the first storage area. Since the saved log is saved in the second storage area as a log at the time of abnormality, the log at the time of abnormal termination can be surely saved.

  Next, an image forming apparatus, a management system, and a management program according to a third embodiment of the present invention will be described with reference to FIGS. FIG. 15 is a block diagram showing the configuration of the management apparatus of this embodiment, and FIG. 16 is a flowchart showing the operation of the management apparatus of this embodiment.

  In the first and second embodiments described above, the first storage area is provided in the image forming apparatus 10. However, as shown in FIG. 15, the first storage area is provided in the management apparatus 20 (or communication network). It is also possible to provide in other devices connected to the device. In this case, a management program that causes the control unit 21 to function as a first storage control unit, a second storage control unit, and a determination unit (or to cause the control unit 21 to function as a first storage control unit, a second storage control unit, and a determination unit). Run). Hereinafter, the operation of the management apparatus 20 when the first storage area is provided in the management apparatus 20 will be described.

  As shown in the flowchart of FIG. 16, the control unit 21 of the management apparatus 20 monitors the power state of the image forming apparatus 10, and when power on is detected (Yes in S <b> 801), a log is stored in the image forming apparatus 10. A transmission request is made (S802).

  In response to the log transmission request, the image forming apparatus 10 outputs a log, and when the control unit 21 (first storage control unit) acquires the log (S803), the acquired log is stored in the first storage area (first storage unit). 22b) (S804). Then, the control unit 21 monitors the power state of the image forming apparatus 10 (S805), repeats acquisition of a log until power-off is detected, and proceeds to step S806 when power-off is detected. Here, the log forming request is sent from the management apparatus 20 and the image forming apparatus 10 responds. However, when the log is continuously sent from the image forming apparatus 10 and the management apparatus 20 receives the log, it is stored in the first storage area. You may make it preserve | save.

  Next, the control unit 21 (determination unit) performs normal / abnormal determination of the termination factor (S806). This determination can be made based on communication information or environmental information, as in the first embodiment.

  And when it determines with abnormal end (Yes of S807), the control part 21 (2nd memory | storage control part) preserve | saved the log (several logs) preserve | saved in the 1st storage area (1st memory | storage part 22b). If it is, the latest log) is saved as an abnormal log in the second storage area (second storage unit 22a) (S808).

  As described above, in this embodiment, the first storage area (first storage section 22b) that sequentially stores all logs in the storage section 22 of the management apparatus 20, and the second storage area that stores only logs at the time of abnormal termination. (Second storage unit 22a) is provided, and logs are sequentially stored in the first storage area, and the cause of termination of the image forming apparatus 10 is determined based on communication information or environmental information. Since the control for saving the log in one storage area in the second storage area as a log at the time of abnormality is performed, the log at the time of abnormality can be surely saved.

  In each of the above-described embodiments, the case where a log at the time of abnormal termination of the image forming apparatus 10 is stored is described. However, the present invention is not limited to the above-described embodiment, and a log of a specific state of an arbitrary apparatus. The same can be applied to the case of saving.

  The present invention is applicable to a managed device such as an image forming apparatus, a management device that manages the state of the managed device, and a management program that operates on these devices.

DESCRIPTION OF SYMBOLS 10 Image forming apparatus 11 Control part 12 Printing part 13 Network connection part 14 Memory | storage part 14a 1st memory | storage part 14b 2nd memory | storage part 15 Display / operation part 20 Management apparatus 21 Control part 22 Memory | storage part 22a 1st memory | storage part 22b 2nd memory | storage 23 Network connection unit 24 Display unit 25 Operation unit

Claims (11)

In a managed device comprising a first storage area and a second storage area,
A first storage control unit that sequentially stores device information indicating the state of the own device in the first storage area when the state of the own device changes;
A determination unit that determines whether the previous end state of the own device is a normal end or an abnormal end;
And a second storage control unit that stores the device information stored in the first storage area in the second storage area when the determination unit determines that the abnormal end has occurred. apparatus. A first flag is provided that is set after the device information is stored in the second storage area, and is released when the device is started,
The managed device according to claim 1, wherein the first storage control unit stores the device information in the first storage area when the first flag is set. A second flag is provided that is set when the own device is terminated according to a normal sequence, and the setting is canceled after the device information is stored in the second storage area,
The managed device according to claim 1, wherein the determination unit determines that the own device has ended abnormally when the second flag is not set. In a management system in which a managed device having a first storage area and a management apparatus having a second storage area are connected by a communication network,
The managed device is
A first storage control unit that sequentially stores device information indicating the state of the own device in the first storage area when the state of the own device changes;
A second storage control unit for transferring the device information stored in the first storage area to the second storage area of the management device,
The management device
A determination unit that determines whether the previous end state of the managed device is a normal end or an abnormal end and notifies the managed device, at least,
The second storage control unit transfers the device information when an abnormal end is notified from the determination unit of the management device. The managed device is provided with a first flag that is set after the device information is transferred to the management device, and the setting is canceled when the device is started,
The management system according to claim 4, wherein the first storage control unit stores the device information in the first storage area when the first flag is set. In a management system in which a managed device and a management device having a first storage area and a second storage area are connected by a communication network,
The management device
A first storage control unit for acquiring device information indicating the state of the device, which is sequentially transferred when the state of the device changes from the managed device, and storing the device information in the first storage area;
A determination unit that determines whether the previous end state of the managed device is a normal end or an abnormal end;
Second storage control for storing device information stored in the first storage area in the second storage area when the power-off of the managed device is detected and the determination unit determines that the management is abnormally ended. A management system.   When the determination unit detects that periodic communication between the management device and the managed device is interrupted after receiving an end notification from the managed device, the determination unit determines that the communication is normally terminated, and from the managed device The management system according to any one of claims 4 to 6, wherein when it is detected that the periodic communication is interrupted without receiving an end notification, it is determined as an abnormal end.   The determination unit acquires operating environment information of the managed device, and determines normal end / abnormal end based on a comparison result between the operating environment information and a reference value stored in advance. The management system according to any one of 4 to 6. A management program comprising a first storage area and a second storage area and operating on a computer device connected to a managed device via a communication network,
Said computer device,
A first storage control unit for acquiring device information indicating the state of the device, which is sequentially transferred from the managed device when the state of the device is changed, and storing the device information in the first storage area;
A determination unit that determines whether the previous end state of the managed device is a normal end or an abnormal end;
Second storage control for storing device information stored in the first storage area in the second storage area when the power-off of the managed device is detected and the determination unit determines that the abnormal end has occurred. A management program that functions as a part.   When the determination unit detects that periodic communication between the management device and the managed device is interrupted after receiving an end notification from the managed device, the determination unit determines that the communication is normally terminated, and from the managed device The management program according to claim 9, wherein when it is detected that the periodic communication is interrupted without receiving an end notification, the management program is determined to be abnormally ended.   The determination unit acquires operating environment information of the managed device, and determines normal end / abnormal end based on a comparison result between the operating environment information and a reference value stored in advance. 9. The management program according to 9.

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