Electronic apparatus

Abstract

To provide an electronic apparatus capable of reducing the workload during installation and realizing continuous operation during relocation.SOLUTION: An electronic apparatus according to an embodiment of the present invention includes at least one control unit, a power supply unit that supplies power to the control unit, and a cabinet that houses the control unit and the power supply unit, the cabinet is a combination of multiple housing parts that can be separated into each of the control unit and the power supply unit.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an electronic device used as a line control device for a firefighting system, for example. [Background technology]

[0002] A fire protection system is a wireless communication system for receiving reports, issuing orders for the dispatch of emergency vehicles, and providing support to dispatched units. It is made up of a communication control center that issues communication orders, a line control device that controls the switching and connection of communication lines, a base station radio device, and mobile station radio devices (fire engines, ambulances), and communication between the communication control center and the mobile station radio devices is carried out via the base station radio device under the control of the line control device.

[0003] The line control device comprises a control unit for performing line control, and a power supply unit for supplying power and the like to the control unit. In addition, in order to prevent the line control device from becoming unable to operate due to a control unit failure, it is common to provide two control units, one for use and one for standby. In this case, the power supply unit is used as a single shared unit that is connected and operates in common with the current control unit and the standby control unit, so that it can be quickly switched to the standby control unit when the current control unit fails.

[0004] In the field of communication devices, a technique is known in which an extension device is stacked on a basic device to form an integrated unit (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Publication No. 9-83151 Summary of the Invention [Problem to be solved by the invention]

[0006] However, since the line control device has one or more control units and a power supply unit housed in a common cabinet, depending on the type and configuration of the built-in equipment, the cabinet may become larger and the line control device may become heavier, which causes a problem of a large workload when installing the line control device.Furthermore, when relocating the line control device, in addition to the workload, it is difficult to fully satisfy the requirement for continuous operation because the equipment must be powered off once.

[0007] In view of the above circumstances, an object of the present invention is to provide an electronic device that can reduce the workload during installation and achieve continuous operation when relocated. [Means for solving the problem]

[0008] An electronic device according to one embodiment of the present invention comprises at least one control unit, a power supply unit that supplies power to the control unit, and a cabinet that houses the control unit and the power supply unit, the cabinet being a combination of multiple housing parts that can be separated into each of the control unit and the power supply unit.

[0009] According to the electronic device, the cabinet is a combination of multiple housing parts that can be separated into a control unit and a power supply unit, so installation and relocation can be performed for each housing part. This reduces the workload and allows the relocation work to be performed without stopping operation, making it possible to meet the demand for continuous operation.

[0010] The control unit may be a plurality of control units including the first control unit and the second control unit, and the first control unit and the second control unit may be a common electronic device, one of which may be connected to the power supply unit as a current device and the other as a standby device in a switchable manner.

[0011] The multiple housing parts may include a first housing part that houses the first control unit, a second housing part that houses the second control unit, and a third housing part that houses the power supply unit, and the first housing part, the second housing part and the third housing part may be stacked in a vertical direction.

[0012] In this case, in order to facilitate relocation of the electronic device, at least one of the first housing part and the second housing part may be disposed on the third housing part.

[0013] The electronic device may further include a display device attached to the first housing or the second housing and configured to display operating states of the first control unit, the second control unit, and the power supply unit.

[0014] The first control unit and the second control unit may each be a board array in which a plurality of control boards are spaced apart in an axial direction perpendicular to the in-plane direction, and the first housing portion and the second housing portion may have a blower that creates an air flow between the plurality of control boards.

[0015] The first housing may have an opening communicating with an interior of the second housing. The control boards housed in the first housing may be arranged in parallel to the control boards housed in the second housing in a direction perpendicular to the axial direction.

[0016] The electronic device may further include a plurality of wiring cables connecting the first control unit and the second control unit to the power supply unit, and the plurality of wiring cables may be laid so as to pass outside the plurality of housing parts.

[0017] The cabinet may further include a cover member attached to a rear surface of each of the housings and defining a space through which the wiring cables pass.

[0018] The first housing unit and the second housing unit may each have a frame unit for forming a hexahedron and a cross bar unit attached to a rear side of the frame unit and extending horizontally, and the multiple distribution cables may be supported by the cross bar unit. Effect of the Invention

[0019] According to the present invention, it is possible to reduce the workload during installation and to realize continuous operation during relocation. [Brief description of the drawings]

[0020] [Figure 1] 1 is a schematic front view showing an electronic device according to an embodiment of the present invention; [Diagram 2] FIG. 2 is a schematic perspective view of the electronic device. [Diagram 3] 11 is an explanatory diagram showing another example of the installation layout of the electronic device. FIG. [Figure 4] 10A to 10C are explanatory diagrams showing an example of a procedure for relocating the electronic device. [Diagram 5] 10A to 10C are explanatory diagrams showing an example of a procedure for relocating the electronic device. [Figure 6] 10A to 10C are explanatory diagrams showing an example of a procedure for relocating the electronic device. [Figure 7] 4 is an exploded perspective view showing a schematic configuration of a first housing unit in the electronic device. FIG. [Figure 8] FIG. 2 is a schematic front view of the first housing portion. [Figure 9] 4 is a schematic perspective view showing a configuration of a first control unit housed in the first housing portion. FIG. [Figure 10] 4 is a schematic front view illustrating the operation of the electronic device. FIG. [Figure 11] FIG. 2 is a rear view of the electronic device. [Figure 12] FIG. 2 is a side view of a main part of the electronic device. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0021] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0022] [Overall configuration of electronic devices] Fig. 1 is a schematic front view showing an electronic device 100 according to an embodiment of the present invention, and Fig. 2 is a schematic perspective view thereof. In the drawings, the X-axis, Y-axis, and Z-axis indicate three axial directions perpendicular to each other, and the X-axis and Y-axis correspond to the horizontal direction, and the Z-axis corresponds to the height direction. In this embodiment, an application example of the electronic device 100 to a line control device for a firefighting system will be described.

[0023] As shown in FIG. 1, electronic device 100 includes a first control unit 11, a second control unit 21, a shared unit 31, and a cabinet 40 that houses these.

[0024] The first control unit 11 and the second control unit 21 include a line connection device and a control device for performing line control for selecting one or more base station radio devices from a plurality of base station radio devices (not shown) based on a control command from a command desk (not shown). The first control unit 11 and the second control unit 21 have a common configuration, and one is used as an active control unit and the other is used as a spare control unit. In this embodiment, the first control unit 11 is used as the active control unit and the second control unit 21 is used as the spare control unit.

[0025] Note that "active" and "backup" simply indicate different roles. An active control unit is a control unit that is in operation or has the role of operating, while a backup control unit is a control unit that is on standby and ready to operate in place of the active control unit.

[0026] The shared unit 31 is a power supply unit including a power supply device that supplies power to the first control unit 11 and the second control unit 21, a relay device that relays control commands from the command desk, etc. The shared unit 31 is connected to the first control unit 11 and the second control unit 21 by respective distribution cables, and normally transmits power and relay signals to the first control unit 11, which is the active control unit, and is capable of switching the supply of power and the output of control commands from the first control unit 11 to the second control unit 21 when switching the operation from the first control unit 11 to the second control unit 21, that is, when changing (switching) the control unit to be operated from the active control unit to the spare control unit to operate the line control device.

[0027] The cabinet 40 is a combination of a plurality of housing parts which can be separated into the first control unit 11, the second control unit 21, and the common unit 31. More specifically, the cabinet 40 has a first housing part 41 which houses the first control unit 11, a second housing part 42 which houses the second control unit 21, and a third housing part 43 which houses the common unit 31. The cabinet 40 is integrated by fixing the housing parts 41 to 43 together using a plurality of fasteners such as bolts and screws.

[0028] The first housing unit 41, the second housing unit 42, and the third housing unit 43 all have a cubic shape, and the size thereof can be set arbitrarily. In this embodiment, the first housing unit 41, the second housing unit 42, and the third housing unit 43 have the same length in the X-axis direction (depth) and the Y-axis direction (width). This allows the housing units 41 to 43 to be stacked together in an orderly manner. The height dimensions of the housing units 41 to 43 are also the same, but are not limited to this, and the third housing unit 43 may be lower or higher than the first housing unit 41 and the second housing unit 42.

[0029] Since the cabinet 40 is configured to be divisible into each housing section 41 to 43 as described above, the electronic device 100 is configured as a combination of a first device 10, which is an active device having a first control unit 11 housed in the first housing section 41, a second device 20, which is a backup device having a second control unit 21 housed in the second housing section 42, and a third device 30, which is a shared unit 31 housed in the third housing section 43.

[0030] This allows the electronic device 100 to be transported individually for each of the devices 10-30, thereby improving the workability of transporting and installing or relocating the electronic device 100. Furthermore, by making each of the individual housing parts 41-43 out of a light metal such as an aluminum alloy, the weight of each of the housing parts 41-43 can be reduced, thereby reducing the workload during transportation.

[0031] In this embodiment, the electronic device 100 is installed such that the first device 10, the second device 20, and the third device 30 are stacked vertically as shown in Fig. 1. This allows the installation area of ​​the electronic device 100 to be reduced. In this case, it is preferable that the third device 30 housing the shared unit 31 is located at the bottom, in terms of improving workability when relocating the electronic device 100.

[0032] On the other hand, in the electronic device 100 of the present embodiment, the devices 10 to 30 are configured to be separable, so that the degree of freedom in the installation layout of the electronic device 100 can be increased even in an environment where the installation height is limited. For example, as shown in Fig. 3A, one device (device 10) may be placed next to the other two devices (devices 20, 30), or as shown in Fig. 3B, the three devices 10 to 30 may be placed side by side.

[0033] Furthermore, according to this embodiment, since two common control units 11 and 21 are provided, the electronic device 100 can be relocated without stopping the operation of the system or while minimizing the period during which the system is stopped. Figs. 4 to 6 are explanatory diagrams showing an example of a procedure for relocating the electronic device 100 installed in the building 1 to the building 2. Note that the electronic device 100A shown in Fig. 4 indicates the electronic device 100 installed in the building 1, which is the source of the relocation, and the electronic device 100B shown in Fig. 5 and the electronic device 100C shown in Fig. 6 indicate the electronic device 100 installed in the building 2, which is the destination of the relocation.

[0034] When the electronic device 100 is relocated, a shared device 30' for relocation is installed in the building 2 as shown in Fig. 4. This shared device 30' has the same configuration as the third device 30 in the building 1, and contains a power supply unit having the same function as the shared unit 31. Then, by connecting this shared device 30' to a command desk and a base station radio device (not shown) so as to be able to communicate with each other, a second communication path is newly formed having the command desk and the base station radio device and the electronic devices 100B and 100C connected therebetween, in addition to the existing first communication path formed by the command desk and the base station radio device and the electronic device 100A connected therebetween.

[0035] The order of the relocation work is as follows: first, for the electronic device 100A installed in the building 1, the control unit to be operated is switched from the first device 10 (first control unit) that has been operated as the active device to the second device 20 (second control unit 21) that has been placed on standby as the backup device, and then the first device 10 is separated from the second device 20. In this state, communication between the command desk and the base station radio device is maintained by the first communication path including the electronic device 100A.

[0036] 5, the separated first device 10 is connected to a shared device 30' installed in the building 2 to which it is to be moved, thereby forming an electronic device 100B in which the first device 10 functions as an active control unit. Then, the communication path between the command desk and the base station radio device is switched from the first communication path to the second communication path, and the electronic device 100B starts operating as a line control device in place of the electronic device 100A.

[0037] 6, the second device 20 left in the building 1 is separated from the third device 30 and transported to the building 2, which is the destination of relocation. The transported second device 20 is connected to the shared device 30' in the building 2 and installed on the first device 10, so that the electronic device 100C continues to operate it as a line control device. Thereafter, as necessary, the active control unit is switched from the first device 10 to the second device 20. Note that since the shared device 30' used in the destination of relocation (building 2) substitutes for the function of the third device 30 used in the source of relocation (building 1), after the relocation of the electronic device 100 is completed, the third device 30 is collected without being used.

[0038] As described above, according to this embodiment, the electronic device 100 can be moved to the new location without interrupting the operation of the system, and therefore continuous operation during the move can be achieved.

[0039] [Details of each part of the electronic device] (Housing) 7 is an exploded perspective view that shows a schematic configuration of the first housing unit 41. The second housing unit 42 and the third housing unit 43 are configured similarly to the first housing unit 41, and therefore will not be described here.

[0040] 7, the first housing 41 has a frame 50 for forming a hexahedron. The frame 50 is made of, for example, an aluminum alloy, and has openings that open in the front-rear direction (X-axis direction), left-right direction (Y-axis direction), and up-down direction (Z-axis direction). The frame 50 is formed, for example, by combining a plurality of angle bars each having an L-shaped cross section.

[0041] A front panel 51, side panels 52 and 53, a top panel 54, and a bottom panel 55 are attached to each opening surface of the frame section 50. The front panel 51 is, for example, an opening and closing door, and is provided with a handle 510 and a keyhole 511 as shown in FIG. 8. Ventilation holes 54a and 55a are provided in the top panel 54 and the bottom panel 55. Note that the front panel 51 and the side panels 52 and 53 may also be provided with ventilation sections that take in outside air. The ventilation holes 54a and 54b may have a mesh structure to prevent foreign matter from entering.

[0042] A horizontal beam 56 extending in the left-right direction is provided on an opening surface on the rear side of the frame 50 to which the side panels 52, 53 are not attached. The horizontal beam 56 has a function of reinforcing the housing 41, and also has a function of supporting a wiring cable connected to the first control unit 11 (the second control unit 21 in the case of the second housing 42) as described later (see FIG. 12).

[0043] (Control Unit) 9 is a perspective view that shows a schematic configuration of the first control unit 11. The second control unit 21 is configured similarly to the first control unit 11, and therefore a description thereof will be omitted here.

[0044] As shown in FIG. 9, the first control unit 11 is a board array in which a plurality of control boards 70 are arranged at intervals in an axial direction (Y-axis direction) perpendicular to the in-plane direction (direction along the XZ plane). In this embodiment, as shown in the figure, the control boards 70 are arranged at intervals in the width direction of the first housing part 41 in a vertical orientation. Each control board 70 is a printed wiring board or the like, and various electronic components for line control and electronic devices such as a switching hub are mounted on each control board 70. The first control unit 11 is supported by the frame part 50 via a support member not shown. The support form is not particularly limited, and each control board 70 may be supported individually by the frame part 50, or each control board 70 may be supported collectively by the frame part 50 via a common support member.

[0045] By forming the first control unit 11 and the second control unit 21 as a board arrangement in which a plurality of control boards 70 are arranged as described above, a ventilation path P through which air passes is formed between each of the control boards 70, as shown in Fig. 10. The first housing section 41 and the second housing section 42 have a blower 60 for forming an air flow that passes through the ventilation path P, and the first control unit 11 and the second control unit 21 are cooled by the air flow. This makes it possible to prevent malfunctions of the control units 11, 21 due to heat generation.

[0046] It is not necessary to operate all the fans 60 of the housings 41 and 42, and only one of the fans may be operated. For example, only the fan of the housing (first housing 41) that houses the current control unit (first control unit 11) is operated. In this embodiment, the insides of the housings 41 and 42 are in communication with each other via the ventilation holes 54a and 55a of the top plate 54 and the bottom plate 55, so that airflow can pass through the insides of the housings 41 to 43.

[0047] 10, the control boards 70 constituting the board array forming the first control unit 11 and the board array forming the second control unit 12 are arranged parallel to each other in the vertical direction (Z-axis direction), so that the air flow can be brought into uniform contact with the control boards 70 of each housing part 41. This can improve the cooling efficiency of each control unit 11, 21. In this case, the lower end of each control board 70 in the first housing part 41 is arranged opposite the upper end of each control board 70 in the second housing part 42 so that the control boards 70 of each housing part 41, 42 are aligned in the vertical direction, thereby reducing the passage resistance of the air flow.

[0048] (display device) As shown in FIG. 8, the display device 80 is attached to the first housing 41. In this embodiment, the display device 80 is attached to the frame 50 and exposed to the outside through an opening formed in the front panel 51. The display device 80 is for displaying the operating states of the first control unit 11, the second control unit 21, and the shared unit 31, and in this embodiment, has a plurality of indicator lights that are assigned in advance according to the display contents. Examples of the plurality of indicator lights include a lamp that is turned on when the electronic device 100 is in operation (when the line control device is in operation), a lamp that is turned on to indicate which of the first control unit 11 and the second control unit 21 is the active control unit, a lamp that is turned on to indicate that the electronic device 100 is undergoing maintenance inspection, and an alarm lamp for announcing an abnormality. This allows the current operating state of the electronic device 100 to be confirmed from the outside.

[0049] At least one of the indicator lights may be configured as a push switch (changeover switch) for executing various corresponding operations. In this case, during the above-mentioned relocation work of the electronic device 100, switching from the active control unit to the spare control unit, as well as switching from the first communication path to the second communication path, can be performed by inputting an operation to the display device 80 (indicator light).

[0050] The display device 80 may be attached to the second housing part 42 instead of the first housing part 41, or may be attached to both the first housing part and the second housing part 42. The display device 80 is not limited to being composed of a plurality of indicator lights as described above, and may be a display capable of displaying characters and figures, or may have a sounding function such as a buzzer or an alarm.

[0051] (Wiring cable) FIG. 11 is a rear view of the housings 41 to 43 of the electronic device 100 as viewed from the rear side, and FIG. 12 is a side view of the first housing 41 as viewed from the right side.

[0052] As shown in FIG. 11, the electronic device 100 includes a plurality of first wiring cables 91 connecting between the first control unit 11 and the shared unit 31, and a plurality of second wiring cables 92 connecting between the second control unit 21 and the shared unit 31.

[0053] One end of the first wiring cable 91 is connected to the connector terminal 13 of the first control unit 11, and the other end of the first wiring cable 91 is connected to the connector terminal 33 of the shared unit 31. The connector terminals 13 are arranged on each of the multiple control boards 70 that form the first control unit 11, and each control board 70 is connected to the connector terminal of the corresponding shared unit 31 via the individual first wiring cable 91. The first wiring cable 91 includes a power cable for supplying power, a transmission cable for transmitting signals, etc.

[0054] Similarly, one end of the second wiring cable 92 is connected to the connector terminal 23 of the second control unit 21, and the other end of the second wiring cable 92 is connected to the connector terminal 33 of the shared unit 31. The connector terminals 23 are arranged on each of the multiple control boards 70 that form the second control unit 21, and each control board 70 is connected to the connector terminal of the corresponding shared unit 31 via an individual second wiring cable 92. The second wiring cable 92 includes a power cable for supplying power, a transmission cable for transmitting signals, etc.

[0055] The first wiring cable 91 and the second wiring cable 92 are laid so as to pass through the outside of the rear surface of each of the housing parts 41 to 43. This eliminates the need to secure an area in each of the housing parts 41 to 43 for passing the wiring cables, and therefore each of the housing parts 41 to 43 can be made smaller and lighter. Furthermore, each of the wiring cables 91, 92 can be easily attached and detached, improving the workability when relocating the electronic device 100 or changing the installation layout.

[0056] 12, the first wiring cable 91 connected to the connector terminal 13 of the control board 70 forming the first control unit 11 is supported by the cross bar 56 provided on the rear side of the first housing 41. This prevents the weight of the first wiring cable 91 from directly acting on the connector terminal 13, thereby suppressing the first wiring cable 91 from falling off the connector terminal 13 or a connection failure. Each first wiring cable 91 may be commonly tied to a part of the cross bar 56 using a cable tie or the like.

[0057] Similarly, the second wiring cable 92 connected to the connector terminal 23 of the control board 70 forming the second control unit 21 is supported by the cross bar 56 provided on the back side of the second housing 42. This prevents the weight of the second wiring cable 92 from directly acting on the connector terminal 23, thereby suppressing the second wiring cable 92 from falling off or a poor connection from the connector terminal 23. Each second wiring cable 91 may be commonly tied to a part of the cross bar 56 using a cable tie or the like.

[0058] The position at which the cross bar portion 56 is provided is not particularly limited as long as it is a position that can support at least a portion of the wiring cables 91, 92 connected to the connector terminals 13, 23, and may be provided at the same height as the connector terminals 13, 23, or at a lower or higher position than the connector terminals 13, 23.

[0059] Furthermore, the electronic device 100 of the present embodiment further includes a cover member 85 having a space 85s through which the wiring cables 91, 92 pass. The cover member 85 is attached to the rear surface of the housings 41 to 43, and protects the wiring cables 91, 92 so that the wiring cables 91, 92 cannot be seen from the outside and cannot be touched from the outside.

[0060] The cover member 85 may be a pressed body in which a hollow portion 85s is formed by bending a plate material into a U-shaped cross section, or may be a flat cylinder in which a space portion 85s is formed inside. The cover member 85 is provided independently for each of the housing parts 41 to 43, but may also be formed in common for each of the housing parts 41.

[0061] Although the embodiment of the present invention has been described above, the present invention is not limited to the above-mentioned embodiment, and various modifications can be made thereto.

[0062] For example, in the above embodiment, the application example of the electronic device 100 to a line control device for a firefighting system has been described, but the present invention is not limited to this, and can be applied to, for example, a command control device for a firefighting system. In addition, the present invention can be applied to electronic devices for purposes other than firefighting systems.

[0063] In the above embodiment, the electronic device 100 is described as having two control units (the first control unit 21 and the second control unit 21) for active and standby use, but the number of control units may be one or three or more. In addition to the control unit and the shared unit, other electronic units may be additionally installed. [Explanation of symbols]

[0064] 11…First control unit 21…Second control unit 31...Shared unit (power supply unit) 40…Cabinet 41…First housing section 42…Second housing section 43…Third housing section 50…Frame section 56…Side rail 70…Control board 80…Display device 85…Cover member 91…First distribution cable 92…Second distribution cable 100, 100A, 100B, 100C…Electronic equipment

Claims

1. At least one control unit; a power supply unit for supplying power to the control unit; a cabinet for housing the control unit and the power supply unit; Equipped with The cabinet is a combination of a plurality of housing parts which can be separated into the control unit and the power supply unit. electronic equipment.

2. 2. The electronic device according to claim 1, the control unit is a plurality of control units including a first control unit and a second control unit, The first control unit and the second control unit are common electronic devices, one of which is a working device and the other of which is a standby device and is switchably connected to the power supply unit. electronic equipment.

3. 3. The electronic device according to claim 2, the plurality of housings include a first housing that houses the first control unit, a second housing that houses the second control unit, and a third housing that houses the power supply unit; The first housing portion, the second housing portion, and the third housing portion are stacked in a vertical direction. electronic equipment.

4. 4. The electronic device according to claim 3, At least one of the first housing portion and the second housing portion is disposed on the third housing portion. electronic equipment.

5. 4. The electronic device according to claim 3, a display device attached to the first housing portion or the second housing portion and displaying an operating state of the first control unit, the second control unit, and the power supply unit; electronic equipment.

6. 4. The electronic device according to claim 3, each of the first control unit and the second control unit is a substrate array in which a plurality of control substrates are arranged at intervals in an axial direction perpendicular to an in-plane direction of the substrate; The first housing and the second housing have a blower that forms an air flow between the plurality of control boards. electronic equipment.

7. 7. The electronic device according to claim 6, the first housing portion has an opening portion communicating with an interior of the second housing portion, The plurality of control boards housed inside the first housing are arranged in parallel with the plurality of control boards housed inside the second housing in a direction perpendicular to the axial direction. electronic equipment.

8. The electronic device according to any one of claims 3 to 7, a plurality of wiring cables connecting the first control unit and the second control unit to the power supply unit; The plurality of wiring cables are laid so as to pass outside the plurality of housing parts. electronic equipment.

9. 9. The electronic device according to claim 8, The cabinet further includes cover members attached to the rear surfaces of the plurality of housings, respectively, and forming spaces through which the plurality of wiring cables pass. electronic equipment.

10. 10. The electronic device according to claim 8, the first housing portion and the second housing portion each have a frame portion for forming a hexahedron and a horizontal beam portion attached to a rear side of the frame portion and extending in a horizontal direction, The plurality of distribution cables are supported by the cross beam portion. electronic equipment.

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