Display device

Abstract

To enable acquisition of history information stored in an external storage medium of a disaster prevention-related appliance without having to go to an installation site of the disaster prevention-related appliance.SOLUTION: A control unit 111 of a display device 11 comprises: an acquisition unit 1111 that acquires history information stored in a memory card 100 of a disaster prevention-related appliance 10 via a network from one or more disaster prevention-related appliances 10; a display control unit 1112 that displays the acquired history information on a display unit 115; a comparison unit 1113 that compares history information acquired from a certain disaster prevention-related appliance with history information acquired from another disaster prevention-related appliance; and a converting unit 1114 that converts a representation of the history information stored in the memory card 100 into a representation which is easier for a browsing person to understand than the first representation.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present disclosure relates to a technique for displaying history information stored in an external storage medium of a disaster prevention-related device. [Background technology]

[0002] Fire alarm receivers store historical information related to the occurrence of fire events and automatic testing (see, for example, Patent Document 1). Because the data size of this historical information is relatively large, it is generally stored on a memory card, which is an external storage medium attached to the fire alarm receiver. Disaster prevention-related devices other than fire alarm receivers (for example, main repeaters included in a disaster prevention LAN) also store historical information related to communication processing on their own external storage medium.

[0003] The status of these disaster prevention related devices needs to be shared as a single automatic fire alarm system, so for example, when the main repeater receives an alarm signal from a fire detector and goes into a fire alarm state, the fire receiver also needs to go into a fire alarm state via the disaster prevention LAN. The same applies to display devices with displays.

[0004] When verifying a malfunction of a disaster prevention LAN that includes such disaster prevention-related equipment, a worker had to go to the location where each piece of equipment was installed and import the history information of each piece of equipment into a PC or other device for verification. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Publication No. 2022-135686 Summary of the Invention [Problem to be solved by the invention]

[0006] Depending on the type of disaster prevention equipment and the structure or characteristics of the facility in which it is installed, it may be difficult for workers to access the location where the equipment is installed, or the equipment may be installed in a restricted area. For example, in a facility such as a research institute, which has multiple buildings such as an office building and a research building, the fire receiver may be installed in the disaster prevention center in the office building, allowing workers to easily enter, but if the distributed main repeaters are located in a building with a high security level and are restricted to entry, workers may have difficulty accessing the location where the main repeaters are installed.

[0007] Therefore, an object of the present disclosure is to make it possible to obtain history information stored in an external storage medium of a disaster prevention related device without having to go to the location where the disaster prevention related device is installed. [Means for solving the problem]

[0008] In order to solve the above problem, a display device according to a first aspect of the present disclosure includes an acquisition unit that acquires history information stored in an external storage medium of one or more disaster prevention-related devices via a network, and a display control unit that displays the acquired history information. [Effects of the Invention]

[0009] According to the present disclosure, history information stored in an external storage medium of a disaster prevention related device can be obtained without going to the location where the disaster prevention related device is installed. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is a diagram illustrating a configuration example of a disaster prevention system 1 according to an embodiment of the present disclosure. [Figure 2] 1 is a diagram showing an example of the configuration of a display device 11. FIG. [Figure 3] 10 is a flowchart showing the flow of processing in a display method executed by a control unit 111 of a display device 11 according to a control program. [Figure 4] 3 is a diagram showing a display example of the display device 11. FIG. [Figure 5] It is a diagram showing a display example of the display device 11.

Embodiments for Carrying Out the Invention

[0011] <A. Embodiment> The embodiments described below are subject to various technically preferable limitations. However, the embodiments of the present disclosure are not limited to the forms described below.

[0012] <A-1. Configuration> A disaster prevention system 1 according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing the configuration of the disaster prevention system 1 installed in a building B which is a fire prevention target.

[0013] The disaster prevention system 1 shown in the figure includes a plurality of disaster prevention related devices 10 installed at various locations in the building B, a display device 11 installed, for example, in the disaster prevention center of the building B, and a network such as a disaster prevention LAN that interconnects them. In the case of a disaster prevention LAN, only disaster prevention related devices are connected independently of a general network and are not affected by general devices.

[0014] The disaster prevention related devices 10 are, for example, fire receivers and main repeaters, etc., and store history information regarding their own processing in a memory card 100 which is an external storage medium attached to themselves. The memory card 100 is a detachable storage medium for the disaster prevention related devices 10 and is, for example, a Compact Flash (registered trademark) memory card. The fire receiver is usually provided in the disaster prevention center of the building B, etc., and has a display operation unit, and writes and stores, for example, history information regarding the occurrence of a fire event and an automatic test in the memory card 100. The main repeater is usually distributed in the building B and does not have a display operation unit, and writes and stores, for example, history information regarding communication processing in the memory card 100.

[0015] Among the history information, information on the status of equipment is shared within the disaster prevention system 1 as a single automatic fire alarm equipment, and for example, when the main repeater detects a fire and goes into a fire alarm state, other fire receivers and main repeaters must also go into a fire alarm state via the disaster prevention LAN. Note that if there are multiple pieces of equipment within the disaster prevention system 1, the status is shared for each piece of equipment.

[0016] The display device 11 is, for example, a computer that displays the state of the disaster prevention system 1 and is used to operate the disaster prevention system 1.

[0017] 2 is a block diagram showing the configuration of display device 11. Display device 11 includes hardware such as control unit 111, storage unit 112, communication unit 113, operation unit 114, display unit 115, and audio unit 116. Control unit 111, storage unit 112, communication unit 113, operation unit 114, display unit 115, and audio unit 116 are interconnected by a bus that mediates data exchange. Note that the hardware configuration of display device 11 may be configured without including some of the units shown in FIG. 2. Furthermore, display device 11 may be configured by communicating and connecting multiple devices each having a different housing.

[0018] The control unit 111 is composed of an arithmetic device such as a CPU, and includes an acquisition unit 1111 that acquires history information stored in the memory card 100 of one or more disaster prevention related devices 10 via a network, a display control unit 1112 that displays the acquired history information on the display unit 115, a comparison unit 1113 that compares history information (hereinafter referred to as first history information) acquired from a certain disaster prevention related device (hereinafter referred to as a first disaster prevention related device) with history information (hereinafter referred to as second history information) acquired from another disaster prevention related device (hereinafter referred to as a second disaster prevention related device), and a conversion unit 1114 that converts the expression of the history information at the time it was stored in the memory card 100 (hereinafter referred to as the first expression) into an expression (hereinafter referred to as the second expression) that is easier for the viewer to understand than the first expression.

[0019] The memory unit 112 includes a volatile memory such as a RAM and a non-volatile memory such as a flash ROM. A control program (not shown in FIG. 2) that causes the control unit 111 to function as the control center of the display device 11 is stored in the non-volatile memory in advance. The volatile memory of the memory unit 112 is used by the control unit 111 as a work area when executing the control program.

[0020] The communication unit 113 is a communication circuit and communicates with the disaster prevention related device 10 under the control of the control unit 111.

[0021] The operation unit 114 includes operators such as keys, a mouse, a microphone, and switches. The display unit 115 is, for example, a display or an LED lamp. The operation unit 114 and the display unit 115 may have an integrated configuration (for example, a touch panel). The audio unit 116 is a speaker or a bell that outputs sound.

[0022] <A-2. Operation> Next, the display operation of the history information by the display device 11 will be described with reference to FIG. 3. In FIG. 3, when the operator uses the operation unit 114 to perform an operation instructing the display of the history information stored in the memory card 100 of the disaster prevention related device 10, the control unit 111 of the display device 11 accepts this operation (step s11; YES). At this time, the operator may perform an operation instructing the display of the history information stored in the memory cards 100 of all the disaster prevention related devices 10 connected to the display device 11, or may perform an operation instructing the display of the history information stored in the memory card 100 of a specific disaster prevention related device 10 by designating some of the disaster prevention related devices 10.

[0023] In response to the above operation, the acquisition unit 1111 of the display device 11 commands each disaster prevention-related device 10 to transmit its history information to the display device 11 via the network (step s12). In response to this command, each disaster prevention-related device 10 that received the command reads the history information stored in its own memory card 100 and transmits it to the display device 11 via the network. When the acquisition unit 1111 of the display device 11 receives all the history information from each disaster prevention-related device 10 (step s13; YES), the comparison unit 1113 compares each piece of history information with each other (step s14). That is, the comparison unit 1113 compares the first history information acquired from the first disaster prevention-related device with the second history information acquired from the second disaster prevention-related device to attempt to detect any errors, such as inconsistencies or inconsistencies in processing, throughout the disaster prevention system 1. The algorithm for this comparison is a program that associates a combination of the first history information and the second history information with the content of the error, and is pre-stored in the comparison unit 1113.

[0024] Next, the conversion unit 1114 converts the first representation of the history information at the time it was stored in the memory card 100 into a second representation that is easier for the viewer to understand than the first representation (step s15). The first representation here is a representation using a character string in a telegram format (e.g., alphanumeric characters), and the second representation is a representation using a language that humans can understand (e.g., Japanese). The conversion algorithm for performing such conversion is a program that associates the first representation with the second representation, and is stored in advance in the conversion unit 1114.

[0025] Then, the display control unit 1112 displays the multiple pieces of history information H in a predetermined order in the display area D of the display unit 115 (step s16), as exemplified in FIG. 4. This order may be, for example, an order in which the history information is classified for each disaster prevention-related device 10, or a chronological order based on date and time information included in the history information. At this time, the display control unit 1112 displays each piece of history information in the second representation after conversion by the conversion unit 1114. In FIG. 4, the character string represented by the letters X, Y, and Z is an example of the second representation referred to here. Displaying the history information in this manner makes it easier for the operator to understand the content of the history information.

[0026] Furthermore, if an error is detected based on the comparison results by the comparison unit 1113, the display control unit 1112 displays (e.g., highlights) the portion of the history information related to the error so that it can be distinguished from the portion not related to the error, and also displays the details of the error. For example, in the example of FIG. 5, when each piece of history information acquired from different disaster prevention-related devices is displayed on a separate line, the content of the highlighted portion h1 of the history information H acquired from one disaster prevention-related device does not match the content of the highlighted portion h2 of the history information H acquired from another disaster prevention-related device, and a message M indicating "content mismatch" is displayed. This display allows the operator to easily understand which portion of the history information is related to which error. The comparison of the history information may be performed using the log recorded at the time the history occurred, and the display may also be in the log format.

[0027] The acquisition unit 1111 that collects the history information is not limited to being provided in the display device 11, but may also be provided in a control unit of a fire control receiver (not shown in detail).

[0028] According to the embodiment described above, if building B has restricted access areas, dangerous areas, high places, or narrow installation locations, it becomes possible for workers to obtain the history information stored in the memory card of the disaster prevention related equipment without having to go to the installation location of the disaster prevention related equipment, making it easier to perform maintenance, monitoring, etc. using this history information.

[0029] <B. Modified Example> The above embodiment may be modified as follows. Also, the following modified examples may be implemented in combination.

[0030] The disaster prevention related device 10 is not limited to the fire receiver or the main repeater exemplified in the embodiment, and may be any device that stores history information related to disaster prevention in an external storage medium.

[0031] The acquisition unit 1111 may acquire the history information stored in the external storage medium of the disaster prevention related device 10 when the free capacity of the external storage medium of the disaster prevention related device 10 becomes less than the threshold value. Specifically, the disaster prevention related device 10 monitors the free capacity of the external storage medium attached to its own device, and when the free capacity becomes less than the threshold value, it notifies the display device 11 to that effect. In the display device 11, the acquisition unit 1111 commands the disaster prevention related device 10 that is the notification source to transmit the history information to the display device 11 via the network in response to this notification. Each disaster prevention related device 10 that receives this command reads out the history information stored in its own external storage medium and transmits it to the display device 11 via the network, and the acquisition unit 1111 of the display device 11 acquires the history information. Then, when the acquisition unit 1111 of the display device 11 notifies the disaster prevention related device 10 that the history information has been acquired, the disaster prevention related device 10 deletes the history information stored in its own external storage medium to secure free capacity.

Explanation of Reference Signs

[0032] 1... Disaster prevention system, 10... Disaster prevention related device, 100... Memory card, 11... Display device, 111... Control unit, 1111... Acquisition unit, 1112... Display control unit, 1113... Comparison unit, 1114... Conversion unit, 112... Storage unit, 113... Communication unit, 114... Operation unit, 115... Display unit, 116... Acoustic unit

Claims

1. an acquisition unit that acquires, via a network, history information stored in an external storage medium of one or more disaster prevention related devices from the disaster prevention related devices; a display control unit that displays the acquired history information; A display device comprising:

2. The display control unit displays the acquired plurality of pieces of history information in a display area in a predetermined order. The display device according to claim 1.

3. a comparison unit that compares first history information acquired from the first disaster prevention-related device with second history information acquired from the second disaster prevention-related device; The display control unit displays a comparison result between the first history information and the second history information. The display device according to claim 1.

4. a conversion unit that converts a first representation that is a representation of the history information at the time when the history information was stored in the external storage medium into a second representation that is easier for a viewer to understand than the first representation, The display control unit displays the history information after it has been converted into the second representation. The display device according to claim 1.

5. The acquisition unit acquires history information stored in an external storage medium when the free space of the external storage medium of the disaster prevention-related device falls below a threshold. The display device according to claim 1.

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