Fire receiver

Abstract

To enable a fire receiver to store history information stored in an external storage medium before replacement even when the external storage medium for storing the history information is replaced with a new external storage medium concerning the fire receiver.SOLUTION: A fire receiver 11 includes an information reader / writer 1111 for reading / writing information with respect to a RAM 112 corresponding to a storage section and a memory card 200 corresponding to an external storage medium. The information reader / writer 1111 reads history information preserved in the memory card 200 and writes the information in the RAM 112 when the memory card 200 is removed from the fire receiver 11. When a new memory card 200 is mounted on the fire receiver 11, the information reader / writer 1111 writes the history information preserved in the RAM 112 into the memory card 200.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present disclosure relates to a technique for retaining history information stored in an external storage medium of a fire alarm receiver. [Background technology]

[0002] The fire receiver stores historical information about the occurrence of fire events and automatic tests, as well as a database containing information about disaster prevention-related devices connected to the fire receiver and basic settings of the fire receiver (see, for example, Patent Document 1). Because the data size of this historical information and database is large, they are generally stored on a memory card, which is an external storage medium attached to the fire receiver.

[0003] In commercial facilities where fire alarms are installed, for example, when there are changes to the partitions or the number of fire detectors, the contents of this database are updated. After this update, the memory card installed in the fire alarm is replaced with a new memory card containing the updated database. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Publication No. 2022-135686 Summary of the Invention [Problem to be solved by the invention]

[0005] When a new memory card is installed in a fire alarm receiver, the history information stored on the previous memory card will no longer exist on the new memory card, and the history information will no longer be able to be displayed on the fire alarm receiver. In addition, since history information may be used by fire departments to investigate fires in the event of an emergency, a ministerial ordinance (Ministry of Internal Affairs and Communications ordinance) stipulates that automatic test results must be stored on storage media for six months.

[0006] Therefore, it is possible to store the history information in a flash memory built into the fire alarm receiver, but since a large amount of flash memory is required to store history information over a long period of time, this would hinder the demand for miniaturization and cost reduction, etc. Also, it is possible to save the history information on a computer other than the fire alarm receiver and copy it to a new memory card, but this increases the burden on the worker and there is a risk of missing work.

[0007] To provide a fire receiver that can retain history information stored in an external storage medium before the replacement, even when the external storage medium that stored history information in the fire receiver is replaced with a new external storage medium. [Means for solving the problem]

[0008] In order to solve the above problem, a fire receiver according to a first aspect of the present disclosure includes a memory unit, an information reading / writing unit that reads and writes information from the memory unit and an external storage medium that is removable from the device, and when the external storage medium is removed from the device, the information reading / writing unit reads the device's history information stored on the external storage medium and writes it to the memory unit. [Effects of the Invention]

[0009] According to the present disclosure, even if the external storage medium that stored historical information in a fire receiver is replaced with a new external storage medium, the fire receiver can retain the historical information that was stored in the external storage medium before the replacement. [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] FIG. 2 is a diagram illustrating an example of the configuration of a fire receiver 11. [Figure 3]It is a diagram showing the information stored in the RAM 112 and the memory card 200. [Figure 4] It is a flowchart showing the flow of processing executed by the main control unit 111 of the fire receiver 11 according to the control program.

Mode for Carrying Out the Invention

[0011] <A. Embodiment> The embodiments described below are technically preferably subject to various 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 in various places of the building B, a fire receiver 11 installed in, for example, the disaster prevention center of the building B, and a network such as a disaster prevention LAN that interconnects them.

[0014] The disaster prevention related devices 10 are, for example, various fire detectors, acoustic devices, or transmitters with indicator lights.

[0015] The fire receiver 11 stores a database including history information regarding the occurrence of a fire event and automatic tests, and information regarding the basic settings of the disaster prevention related devices 10 and the fire receiver 11 itself, and displays or updates the contents of these history information and the database according to the user's operation.

[0016] 2 is a block diagram showing the configuration of the fire receiver 11. The fire receiver 11 includes hardware such as a main control unit 111, a RAM 112, a ROM 113, a communication unit 114, an operation unit 115, a display unit 116, an audio unit 117, and an I / F unit 118. The main control unit 111, the RAM 112, the ROM 113, the communication unit 114, the operation unit 115, the display unit 116, the audio unit 117, and the I / F unit 118 are interconnected by a bus that mediates data transmission and reception. Note that the hardware configuration of the fire receiver 11 may be configured without including some of the units shown in FIG. 2. Furthermore, the fire receiver 11 may be configured by communicating with multiple devices each having a different housing.

[0017] The main control unit 111 is made up of a calculation device such as a CPU, and functions as the control center of the fire receiver 11. The main control unit 111 includes an information reading / writing unit 1111 that reads and writes information, and an equipment control unit 1112 that performs predetermined control over the disaster prevention-related equipment 10.

[0018] The RAM 112 is a volatile memory and corresponds to the storage unit of the present invention. The RAM 112 is used as a work area when the main control unit 111 executes the control program, and also as a temporary save area for the history information described above.

[0019] The ROM 113 is a non-volatile memory such as a flash memory, and stores a control program and system information for causing the main control unit 111 to function as the control center of the fire control panel 11.

[0020] The communication unit 114 is a communication circuit, and communicates with the disaster prevention related equipment 10 under the control of the main control unit 111 .

[0021] Operation unit 115 includes, for example, operators such as keys, a microphone, and switches. Display unit 116 is, for example, a display or an LED lamp. Operation unit 115 and display unit 116 may be integrated into one unit (for example, a touch panel). Sound unit 117 is, for example, a speaker or bell that outputs sound.

[0022] The I / F unit 118 has a structure that allows the memory card 200 to be attached to or detached from the fire control receiver 11. Information is read from and written to the memory card 200 via the I / F unit 118.

[0023] The memory card 200 corresponds to the external storage medium of the present invention. The memory card 200 has a storage capacity larger than that of the RAM 112 built into the fire control signal receiver 11.

[0024] FIG. 3 is a diagram showing information stored in the RAM 112 and the memory card 200. As shown in FIG.

[0025] When the memory card 200 is inserted into the fire receiver 11, it stores historical information about the occurrence of fire events and automatic tests, as well as a database containing information about the basic settings of the disaster prevention-related devices 10 and the fire receiver 11. The historical information about the occurrence of fire events includes the date and time of an event, such as when a fire detector detects a fire, and the details of the event. The historical information about automatic tests includes the results of confirmation of whether the fire detector is operating normally in automatic tests that are conducted periodically, for example once a week.

[0026] When the memory card 200 is attached to the fire receiver 11, the RAM 112 stores receiver status information and device status information relating to the status of the fire receiver 11.

[0027] The information reading and writing unit 1111 reads and writes information from the RAM 112, which corresponds to the storage unit, and the memory card 200, which corresponds to the external storage medium, and in particular, reads and writes the following information when the memory card 200 is removed from and inserted into the fire receiver 11.

[0028] When the memory card 200 is removed from the fire receiver 11, the information reading / writing unit 1111 reads the history information stored in the memory card 200 and writes it into the RAM 112 (arrow a in the figure). That is, the history information is temporarily evacuated from the memory card 200 to the RAM 112 during the period when the memory card 200 is removed from the fire receiver 11.

[0029] Then, when a new memory card 200 is attached to the fire receiver 11, the information reading / writing unit 1111 writes the history information stored in the RAM 112 into the new memory card 200 (arrow b in the figure). That is, when the memory card 200 is attached to the fire receiver 11, the history information that has been temporarily evacuated to the RAM 112 returns to the memory card 200.

[0030] <A-2. Operation> Next, the flow of the process executed by the main control unit 111 of the fire receiver 11 according to the control program will be described.

[0031] In FIG. 4, the user operates the operation unit 115 to perform an operation instructing the safe removal of the memory card 200. The reason for performing such a predetermined operation is that if the memory card 200 is removed from the fire receiver 11 suddenly, there is a risk that part of the information in the memory card 200 will be lost.

[0032] When the user performs an operation instructing the safe removal of the memory card 200 (step s11; YES), the information reading / writing unit 1111 reads the history information stored in the memory card 200 and writes it into the RAM 112 via the I / F unit 118 (step s12). As a result, the history information is temporarily evacuated from the memory card 200 to the RAM 112.

[0033] Next, when a new memory card 200 is attached to the fire control signal receiver 11 (step s13; YES), the information reading / writing unit 1111 refers to the information in the new memory card 200, compares it with the history information stored in RAM 112, and determines whether the same information as the history information stored in RAM 112 is stored in the new memory card 200 (step s14). This is because there may be cases where the user uses a terminal such as a personal computer to transfer history information from the memory card 200 removed from the fire control signal receiver 11 to the new memory card 200, and in such cases, it is not necessary to restore the history information to the new memory card.

[0034] Therefore, if the information reading / writing unit 1111 finds that the same history information as that stored in RAM 112 is stored in the new memory card 200 (step s14; YES), it does not write the history information stored in RAM 112 to the new memory card 200, but deletes the history information stored in RAM 112 (step s15), and terminates the processing of Figure 4.

[0035] On the other hand, if the same history information as that saved in RAM 112 is not stored in the new memory card 200 (step s14; NO), the information reading / writing unit 1111 writes the history information saved in RAM 112 to the new memory card 200 (step s16). As a result, the history information that was temporarily saved in RAM 112 is restored to the memory card 200.

[0036] According to the embodiments described above, even when a new memory card 200 is replaced for the fire receiver 11, the history information stored in the memory card before the replacement returns to the new memory card 200, so that the history information can be displayed on the fire receiver 11. Also, although the history information is stipulated to be retained for six months by law, even when a new memory card 200 is replaced for the fire receiver 11, the history information stored in the memory card before the replacement returns to the new memory card 200, making it easy to comply with the above-mentioned law.

[0037] <B. Modified Example> The above embodiments may be modified as follows. Also, the following modified examples may be implemented in combination.

[0038] <Modified Example 1> It is assumed that the automatic test of the fire receiver 11 or the disaster prevention related equipment 10 is started while the memory card 200 is removed. Therefore, in such a case, the start timing of the automatic test may be postponed until a new memory card 200 is installed and the history information is restored. That is, when the timing for starting the automatic test in the fire receiver 11 or the equipment connected to the fire receiver 11 arrives during the period when the memory card 200 is removed from the fire receiver 11, the fire receiver 11 may be provided with a postponing unit that postpones the timing for starting the automatic test until a new memory card 200 is installed in the fire receiver 11 and the history information is written to the memory card 200 by the information reading / writing unit 1111.

[0039] <Modified Example 2> Of the history information stored in memory card 200, history information related to the occurrence of events may be saved to RAM 112, and history information related to automatic tests may be saved to ROM 113 (flash memory). This is because a ministerial ordinance stipulates that history information related to automatic tests be retained for six months, and it is therefore desirable to save the information in ROM 113 (flash memory), which is not deleted even when the fire control panel 11 is turned off. In this case, the storage unit in the present invention may include a volatile storage unit such as RAM and a non-volatile storage unit such as flash memory, and when memory card 200 is removed from the fire control panel 11, the information read / write unit 1111 may read history information related to automatic tests of the fire control panel 11 or devices connected to the fire control panel 11 from the history information stored in the memory card 200 and write it to the non-volatile storage unit.

[0040] <Variation 3> If historical information regarding the occurrence of a new event is received by the fire receiver 11 while historical information is stored in RAM 112, the information reading / writing unit 1111 may discard the historical information regarding the occurrence of the event or may store the historical information in RAM 112.

[0041] <Variation 4> If the power to the fire receiver 11 is turned off while the history information is stored in RAM 112, the power may be switched to a backup power source that has been prepared in advance, or a message saying "Do not turn off the power" may be displayed on the display unit 116 while the history information is stored in RAM 112.

[0042] <Variation 5> Even if history information is stored in memory card 200, if part of the history information is missing, information reading / writing unit 1111 may write the history information saved in RAM 112 to new memory card 200. For example, if 0 is written in a blank area of ​​a file format and the capacity should always be maximum, but the data size is smaller than the maximum capacity, it can be determined that part of the information is missing. [Explanation of symbols]

[0043] 1...Disaster prevention system, 10...Disaster prevention related equipment, 11...Fire receiver, 111...Main control unit, 1111...Information reading and writing unit, 1112...Equipment control unit, 112...RAM, 113...ROM, 114...Communication unit, 115...Operation unit, 116...Display unit, 117...Audio unit, 118...I / F unit, 200...Memory card

Claims

1. A memory unit; an information read / write unit that reads and writes information from and to the storage unit and an external storage medium that is removable from the device itself; The information reading and writing unit reads the history information of the fire receiving device stored in the external storage medium and writes it to the storage unit when the external storage medium is removed from the fire receiving device.

2. 2. The fire receiver according to claim 1, wherein the information read / write unit writes the history information stored in the storage unit to the external storage medium when the external storage medium is newly attached to the device.

3. A fire receiver as described in claim 2, wherein when a new external storage medium is attached to the device, if the history information is not stored on the external storage medium, the information reading and writing unit writes the history information stored in the memory unit to the external storage medium.

4. A fire receiver as described in claim 1 or 2, which is provided with a postponement unit that postpones the start of an automatic test on the device or an equipment connected to the device when the time arrives for the automatic test to begin while the external storage medium is removed from the device, until a new external storage medium is attached to the device and the history information is written to the external storage medium by the read / write unit.

5. the storage unit includes a volatile storage unit and a nonvolatile storage unit; A fire receiver as described in claim 1 or 2, wherein when the external storage medium is removed from the device, the information reading and writing unit reads historical information stored on the external storage medium, including historical information related to automatic tests on the device or equipment connected to the device, and writes the information to the non-volatile memory unit.

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