Signal control system and step-up method

Abstract

To provide a technique capable of easily performing installation work, inspection work or the like of a system in which data communication between a signal controller and a control center is performed by radio.SOLUTION: A housing of the signal control device is provided with a door panel provided so as to be freely opened and closed, and an attachment member attached to a back surface of the door panel. The attachment member has a shape in which a first portion having an attachment surface attached in contact with the back surface of the door panel and a second portion separated from the back surface of the door panel in a state where the attachment surface of the first portion is attached in contact with the back surface of the door panel are continuous in the first direction. The wireless communication device is held by the second portion of the attachment member.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a technique for controlling switching of light color signals of traffic lights installed at intersections. [Background technology]

[0002] Conventionally, the light colors (red, yellow, green, etc.) of traffic lights installed at intersections are switched by a traffic light control device. As disclosed in Patent Document 1, for example, the traffic light control device is connected to a control center and switches the light colors of the traffic light based on signal control parameters acquired from the control center.

[0003] In recent signal control systems, wireless data communication, rather than wired communication, between a signal control device and a control center is becoming mainstream. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Publication No. 2020-129327 Summary of the Invention [Problem to be solved by the invention]

[0005] However, to wirelessly communicate data between a signal control device and a control center, a wireless communication device must be connected to the signal control device. Because the signal control device is an outdoor device, installation (burial, etc.) of a pipe through which a cable connecting the signal control device and the wireless communication device can be passed is required, which creates a problem of cumbersome installation work. Another problem is that inspection work related to the connection between the signal control device and the wireless communication device is also cumbersome.

[0006] An object of the present invention is to provide a technique that allows easy installation and inspection of a system in which data communication with a control center is performed wirelessly. [Means for solving the problem]

[0007] In order to achieve the above object, the signal control system of the present invention is configured as follows.

[0008] The signal control device switches the light color of the signal lamps installed at the intersection based on the signal control parameters stored in the memory unit. The wireless communication device is installed inside the housing of the signal control device and performs data communication with the control center via wireless communication.

[0009] In this configuration, the wireless communication device is mounted inside the housing of the signal control device, so the connection between the signal control device and the wireless communication device can be made inside the housing of the signal control device, without using piping to pass the cable connecting them.

[0010] The housing of the signal control device is provided with a door panel that can be opened and closed, and a mounting member attached to the back surface of the door panel. The back surface of the door panel is the surface that is located inside the housing when the door panel is closed. The surface that is located outside the housing when the door panel is closed is the front surface of the door panel.

[0011] The mounting member has a first portion having a mounting surface that contacts the rear surface of the door panel and a second portion that is spaced apart from the rear surface of the door panel when the mounting surface of the first portion contacts the rear surface of the door panel. The direction in which the first and second portions are aligned is referred to as the "alignment direction" here. The mounting member may be attached to the rear surface of the door panel so that the alignment direction is, for example, the width direction of the housing of the signal control device, or the height direction of the housing of the signal control device. The mounting member may be attached, for example, by adhering the mounting surface of the first portion to the rear surface of the door panel with an adhesive, by adhering the mounting surface of the first portion to the rear surface of the door panel with double-sided tape, by screwing the mounting surface of the first portion to the rear surface of the door panel, or by other methods.

[0012] The signal control system holds the wireless communication device on the second part of the mounting member. The wireless communication device may be held on the second part by, for example, attaching it to the second part with an adhesive, by attaching it to the second part with double-sided tape, by the magnetic attraction, by screwing it to the second part, or by any other method.

[0013] Signal control devices may have documents (hereinafter referred to as stored documents) on the back of the door panel that workers refer to and fill out during inspection work. These stored documents include, for example, a document showing the display steps of the signal lights installed at the intersection, an instruction manual for the signal control device, inspection items to be checked during inspection work, and check sheets on which inspection results for each inspection item are written. These stored documents are stored together in a clear file placed on the back of the door panel, for example.

[0014] The second portion of the mounting member and the rear surface of the door panel are spaced apart. In other words, there is a gap between the second portion of the mounting member and the rear surface of the door panel. The mounting member is attached to the rear surface of the door panel so that the document storage attached to the rear surface of the door panel is located in the gap between the second portion of the mounting member and the rear surface of the door panel. Therefore, the mounting member can be attached to the rear surface of the door panel without interfering with the document storage attached to the rear surface of the door panel.

[0015] Therefore, with this configuration, even in a signal control device in which the storage document is attached to the back surface of the door panel, the storage document can be taken out and stored without being obstructed by the mounting member attached to the back surface of the door panel or the wireless communication device.

[0016] The mounting member may have a shape in which the first portion is provided on both sides of the second portion in the first direction.

[0017] Furthermore, the mounting member may have a shape that includes, for example, a receiving portion in the second portion that receives the bottom surface of the wireless communication device being held. This configuration can prevent the wireless communication device from slipping off the mounting member due to the action of gravity or the like. In other words, the wireless communication device can be stably held on the mounting member.

[0018] Furthermore, the length of the wireless communication device in the arrangement direction may be shorter than the length of the second portion of the mounting member in the arrangement direction. In this case, it is preferable that the wireless communication device held in the second portion of the mounting member protrudes toward the first portion of the mounting member in the arrangement direction rather than protruding outward from the second portion of the mounting member. This configuration reduces the load on the first portion of the mounting member attached to the back surface of the door panel. Therefore, it is possible to prevent the mounting state of the mounting member on the back surface of the door panel from becoming unstable. [Effects of the Invention]

[0019] According to this invention, it is possible to prevent installation work from becoming complicated, and it is also possible to prevent inspection work relating to the connection between the signal control device and the wireless communication device from becoming complicated. [Brief explanation of the drawings]

[0020] [Figure 1] 1 is a schematic block diagram showing the configuration of a signal control system according to this example. [Figure 2] Figure 2 is a schematic diagram showing the appearance of the signal control system of this example, where Figure 2(A) shows the state in which the door panel of the housing is closed, and Figure 2(B) shows the state in which the door panel of the housing is open. [Figure 3] FIG. 3 is a plan view of the rear surface of the door panel. [Figure 4] 4A is a cross-sectional view taken along the line AA in FIG. 3, and FIG. 4B is a cross-sectional view taken along the line BB in FIG. [Figure 5] Figures 5(A) to (D) are diagrams showing the mounting member, where Figure 5(A) is a plan view in the same direction as Figure 3, Figure 5(B) is a plan view in the direction A shown in Figure 5(A), Figure 5(C) is a plan view in the direction B shown in Figure 5(A), and Figure 5(D) is a plan view in the direction C shown in Figure 5(A). [Figure 6] 10 is a flowchart illustrating a step-up process. [Figure 7] 10 is a diagram showing a state in which a wireless communication device according to Modification 1 is held by an attachment member. FIG. [Figure 8] 10 is a diagram showing an example of a state in which a wireless communication device according to Modification 2 is held by an attachment member. FIG. [Figure 9] Figure 9 shows the mounting member of variant example 3, where Figure 9(A) is a plan view in the same direction as Figure 3 (the direction facing the back surface of the door panel 12), Figure 9(B) is a plan view in direction A shown in Figure 9(A), Figure 9(C) is a plan view in direction B shown in Figure 9(A), and Figure 9(D) is a plan view in direction C shown in Figure 9(A). [Figure 10] 10A and 10B are diagrams showing an example of a state in which a wireless communication device according to Modification 3 is held by an attachment member. [Figure 11] FIG. 10 is a plan view showing the back surface of the door panel in the signal control system of the fourth modified example. [Figure 12]Figure 12 shows the mounting member, where Figure 12(A) is a plan view in the same direction as Figure 11 (the direction facing the back surface of the door panel 12), Figure 12(B) is a plan view in the A direction shown in Figure 12(A), Figure 12(C) is a plan view in the B direction shown in Figure 12(A), and Figure 12(D) is a plan view in the C direction shown in Figure 12(A). [Figure 13] Figure 13 shows the mounting member of variant example 5, where Figure 13(A) is a plan view in the same direction as Figure 3 (the direction facing the back surface of the door panel 12), Figure 13(B) is a plan view in direction A shown in Figure 13(A), Figure 13(C) is a plan view in direction B shown in Figure 13(A), and Figure 13(D) is a plan view in direction C shown in Figure 13(A). DETAILED DESCRIPTION OF THE INVENTION

[0021] Hereinafter, an embodiment of the present invention will be described.

[0022] <1. Application Examples> 1 is a schematic block diagram showing the configuration of a signal control system of this example. The signal control system 1 of this example has a signal control device 20 and a wireless communication device 30. The signal control system 1 of this example controls the switching on / off of light colors (green, yellow, red, etc.) of signal lamps 50 (50-1 to 50-n) installed at intersections.

[0023] The wireless communication device 30 performs data communication with the control center via wireless communication. The wireless communication device 30 receives, for example, signal control parameters transmitted from the control center. The signal control device 20 switches the light color signals of the signal lamps 50 installed at the intersection on and off based on the signal control parameters received by the wireless communication device 30 from the control center.

[0024] As shown in FIG. 1, the signal control device 20 includes a signal control unit 21, a storage unit 22, an input / output unit 23, and a mode switching operation unit 24.

[0025] The input / output unit 23 is connected to the wireless communication device 30 and performs input and output of data to and from the wireless communication device 30 .

[0026] The storage unit 22 stores, for example, signal control parameters. As is well known, signal control parameters are parameters used by the signal control device 20 to control the on / off switching of the light color signal of the signal lamp device 50, and are parameters that specify the cycle, split, offset, etc. For example, the wireless communication device 30 receives the signal control parameters from the control center and outputs them to the signal control device 20. The signal control device 20 stores the signal control parameters input from the wireless communication device 30 in the storage unit 22.

[0027] The signal control unit 21 controls the switching on / off of the light color signals of the signal lamps 50 based on the signal control parameters stored in the memory unit 22. The signal control device 20 controls the signal lamps 50 to supply power to the lighting circuits of the light color signals that are to be turned on and not to supply power to the lighting circuits of the light color signals that are not to be turned on, thereby switching on / off the light color signals of the signal lamps 50.

[0028] The mode switching operation unit 24 accepts a selection operation by an operator to switch the operation mode (automatic mode or manual mode) of the signal control device 20 main body. The automatic mode is a mode in which the on / off switching of the light color signals of the signal lamps 50 (50-1 to 50n) is controlled based on signal control parameters. The manual mode is a mode in which the on / off switching of the light color signals of the signal lamps 50 (50-1 to 50n) is switched in response to an operator's operation (or an input instruction from an external device). When in the manual mode, the mode switching operation unit 24 has either an operation button for instructing the switching of the light color signals of the signal lamps 50 (50-1 to 50n) or a connector for connecting an external device, or both.

[0029] Furthermore, sensors such as vehicle detectors may be connected to the signal control device 20. The signal control device 20 acquires the traffic volume around the intersection based on, for example, a vehicle detection signal from the connected vehicle detector. In this case, the wireless communication device 30 transmits, for example, the traffic volume around the intersection acquired by the signal control device 20 to a control center.

[0030] At many intersections, the signal control device 20 and the signal lamps 50 are connected via a signal junction box (not shown) or the like. The signal junction box is a terminal block box for relaying. The connection between the signal control device 20 and the signal lamps 50 is well known, so a description thereof will be omitted here. Also, in this example, the power cable connecting the signal control device 20 and the signal junction box (a cable that supplies power to the lighting circuits of each light color signal in the signal lamps 50) is not shown.

[0031] The wireless communication device 30 includes a communication control unit 31 and an input / output unit 32 .

[0032] The communication control unit 31 controls data communication with the control center. Data communication between the wireless communication device 30 and the control center is performed wirelessly.

[0033] The input / output unit 32 is connected to the signal control device 20 and performs input and output of data between the signal control device 20 and the signal control device 20 .

[0034] FIG. 2 is a schematic diagram showing the appearance of the signal control system of this example. FIG. 2(A) shows the state in which the door panel of the housing is closed, and FIG. 2(B) shows the state in which the door panel of the housing is open. The signal control system 1 of this example is configured such that a wireless communication device 30 is housed in a housing 10 of a signal control device 20. That is, the signal control system 1 of this example differs from conventional signal control devices in that the wireless communication device 30 is housed in the housing 10 of the signal control device 20. The wireless communication device 30 is attached inside the housing 10 of the signal control device 20 as described below.

[0035] As shown in Figures 2(A) and (B), the housing 10 of the signal control device 20 has a main body 11 and a door panel 12. The door panel 12 is a door that opens and closes the storage space formed by the main body 11 of the housing 10. As shown in Figures 2(A) and (B), the door panel 12 opens and closes the storage space formed by the main body 11 by rotating it on a rotation axis provided in the main body 11. Here, the side on which the door panel 12 is provided will be described as the front.

[0036] For example, in the signal control system 1 of this example, the front of the main body 11 is covered with an operation panel 25 on which a display and operation buttons are arranged. Electrical components such as circuit boards that constitute the signal control device 20 are arranged on the back side of this operation panel 25. When an operator operates the operation panel 25 of the signal control system 1, he or she opens the door panel 12. In addition, a mode switching operation unit 24 is attached to the back side of the door panel 12.

[0037] Furthermore, the signal control system 1 of this example is provided with an auxiliary door 12a on the door panel 12. The auxiliary door 12a is attached to the door panel 12 so as to be able to open and close freely. The auxiliary door 12a is provided in a position facing a mode switching operation unit 24 attached to the rear surface of the door panel 12. When an operator operates the mode switching operation unit 24 of the signal control system 1, the operator opens the auxiliary door 12a. At this time, the door panel 12 may be closed or open.

[0038] Additionally, documents 100 (hereinafter referred to as document storage 100) that workers refer to and fill out during inspection work are stored on the back of the door panel 12. These documents storage 100 are, for example, a document showing the transition of the display steps of the signal lamps 50 installed at the intersection, an instruction manual for the signal control device 20, inspection items to be inspected during inspection work, and check sheets on which inspection results for each inspection item are written. These documents storage 100 are stored together in a clear file attached to the back of the door panel 12, for example.

[0039] Furthermore, a wireless communication device 30 is attached to the back surface of the door panel 12. The wireless communication device 30 is held by a mounting member 40 attached to the back surface of the door panel 12. The mounting member 40 is located behind the wireless communication device 30 and is therefore not shown in FIG. 2(B). The mounting member 40 and the wireless communication device 30 are attached so as not to interfere with the removal and storage of the document storage 100. In other words, the mounting member 40 and the wireless communication device 30 are attached to the back surface of the door panel 12 so as not to hinder the removal and storage of the document storage 100 by an operator. Furthermore, the mounting member 40 and the wireless communication device 30 are attached to the back surface of the door panel 12 so as not to hinder the opening and closing of the door panel 12.

[0040] As described above, in the signal control system 1 of this example, the wireless communication device 30 is attached inside the housing 10 of the signal control device 20, and the signal control device 20 and the wireless communication device 30 are connected inside the housing 10. Therefore, the signal control system 1 of this example does not require work such as installing (burying, etc.) pipes through which cables connecting the signal control device 20 and the wireless communication device 30 pass. In other words, this prevents the installation work of the signal control system 1 from becoming complicated, and also prevents the inspection work related to the connection between the signal control device 20 and the wireless communication device 30 from becoming complicated. Therefore, in the signal control system 1 of this example, data communication with the control center is performed wirelessly, and installation work, inspection work, etc. can be easily performed.

[0041] <2.Configuration example> 2, in the signal control system 1 of this example, the wireless communication device 30 is attached to the back surface of the door panel 12 of the housing 10 of the signal control device 20. In addition, on the back surface of the door panel 12 of the housing 10 of the signal control device 20 of this example, a mode switching operation unit 24 is arranged, and a clear file is provided for storing all of the storage documents 100 that the worker refers to and fills out during inspection work.

[0042] In addition, the signal control system 1 in this example may be configured so that the mode switching operation unit 24 is not located on the back of the door panel 12, and may not be provided with a clear file for storing the storage documents 100 that workers refer to and fill out during inspection work.

[0043] Fig. 3 is a plan view of the back surface of the door panel, Fig. 4(A) is a cross-sectional view in the AA direction shown in Fig. 3, and Fig. 4(B) is a cross-sectional view in the BB direction shown in Fig. 3. Also, Fig. 5 is a diagram showing the mounting member, Fig. 5(A) is a plan view in the same direction as Fig. 3 (the direction facing the back surface of the door panel 12), Fig. 5(B) is a plan view in the A direction shown in Fig. 5(A), Fig. 5(C) is a plan view in the B direction shown in Fig. 5(A), and Fig. 5(D) is a plan view in the C direction shown in Fig. 5(A).

[0044] In the signal control system 1 of this example, the mounting member 40 and the wireless communication device 30 are attached in a position that does not overlap with the mode switching operation unit 24 in the direction facing the back surface of the door panel 12 (a direction perpendicular to the paper surface in FIG. 3). If the mounting member 40 and the wireless communication device 30 are attached in a position that overlaps with the mode switching operation unit 24, the wireless communication device 30 may hit the operation panel 25, hindering the opening and closing of the door panel 12. Furthermore, in the signal control system 1 of this example, the mounting member 40 and the wireless communication device 30 are attached in a position that overlaps with the clear file in which the documents 100 are collectively stored, in the direction facing the back surface of the door panel 12.

[0045] As shown in FIG. 5, the mounting member 40 is a so-called Z-shaped mounting member extending in the longitudinal direction (directions B and C shown in FIG. 5). The mounting member 40 may be a member formed by bending a sheet metal or a resin molded product. Specifically, the mounting member 40 has a shape with a standing portion 43 on a rectangle in the middle of the longitudinal direction. Further, the mounting member 40 has a shape with a door mounting portion 41 that is continuous with one side of the standing portion 43 and extends in the C direction shown in FIG. 5(A). Further, the mounting member 40 has a shape with a wireless communication device mounting portion 42 on a rectangle that is continuous with the side opposite to the side where the door mounting portion 41 is continuous in the standing portion 43 and extends in the B direction shown in FIG. 5(A). That is, the mounting member 40 has a shape in which the door mounting portion 41 is continuous with one of the two opposite sides of the standing portion 43, and the wireless communication device mounting portion 42 is continuous with the other side. The direction in which the door mounting portion 41 extends is opposite to the direction in which the wireless communication device mounting portion 42 extends.

[0046] The door mounting portion 41 corresponds to the first portion referred to in this invention, and the wireless communication device mounting portion 42 corresponds to the second portion referred to in this invention. The longitudinal direction of the mounting member 40 corresponds to the arrangement direction referred to in this invention.

[0047] The door mounting portion 41 has a length L1 in the longitudinal direction, and the wireless communication device mounting portion 42 has a length L2 (L1 < L2) in the longitudinal direction. In this example, the length of the wireless communication device 30 in the longitudinal direction is shorter than the length (L1 + L2) of the mounting member 40 in the longitudinal direction.

[0048] As shown in FIGS. 3 and 4, the signal control system 1 of this example attaches the mounting member 40 to the back surface of the door panel 12. Specifically, the signal control system 1 of this example attaches the door mounting portion 41 of the mounting member 40 to the back surface of the door panel 12 with a double-sided tape. The attachment surface of the door mounting portion 41 is the opposite surface to the wireless communication device mounting portion 42 side. Further, the door mounting portion 41 is attached to a position that does not overlap with the clear file in which the storage document 100 is collectively stored.

[0049] In this example, the signal control system 1 is configured such that the door mounting portion 41 is attached (pasted) to the back surface of the door panel 12 with double-sided tape, but the door mounting portion 41 may also be attached to the back surface of the door panel 12 with adhesive, or may be attached to the back surface of the door panel 12 with screws, or may be attached to the back surface of the door panel 12 by some other method (for example, welding, etc.).

[0050] The mounting member 40 attached to the back surface of the door panel 12 creates a gap corresponding to the height H of the standing portion 43 between the back surface of the door panel 12 and the wireless communication device mounting portion 42. The height of the standing portion 43 is the distance between the side of the standing portion 43 to which the door mounting portion 41 is continuous and the side of the standing portion 43 to which the wireless communication device mounting portion 42 is continuous. In other words, the mounting member 40 is attached to the back surface of the door panel 12 with the wireless communication device mounting portion 42 spaced apart from the back surface of the door panel 12 by H as shown in Figures 5(C) and (D).

[0051] In this example, when viewed from the direction facing the back surface of the door panel 12, the attachment member 40 attached to the back surface of the door panel 12 has a portion of the wireless communication device attachment section 42 overlapping the clear file in which the document storage 100 is collectively stored. However, as described above, the attachment member 40 attached to the back surface of the door panel 12 has a gap between the back surface of the door panel 12 and the wireless communication device attachment section 42, so the clear file in which the document storage 100 is collectively stored is located in the gap between the back surface of the door panel 12 and the wireless communication device attachment section 42. Therefore, the attachment member 40 can be attached to the back surface of the door panel 12 without interfering with the document storage attached to the back surface of the door panel 12.

[0052] 3 and 4, in the signal control system 1 of this example, the wireless communication device 30 is held in the wireless communication device mounting portion 42 of the mounting member 40. Specifically, in the signal control system 1 of this example, the wireless communication device 30 is held in the wireless communication device mounting portion 42 of the mounting member 40 by the attractive force of a magnet. The wireless communication device 30 is located on the surface of the wireless communication device mounting portion 42 opposite to the door mounting portion 41 side.

[0053] In this example, the wireless communication device 30 is held to the wireless communication device mounting portion 42 by the magnetic attraction force, but the wireless communication device 30 may also be held to the wireless communication device mounting portion 42 with double-sided tape, adhesive, or screws, or the wireless communication device 30 may be held to the wireless communication device mounting portion 42 by any other method.

[0054] As described above, the signal control system 1 of this example has a configuration in which the signal control device 20 and the wireless communication device 30 are housed in the housing 10. In other words, the signal control system 1 of this example does not require the use of piping through which a cable connecting the signal control device 20 and the wireless communication device 30 is passed.

[0055] Furthermore, even in the case of a signal control device in which stored documents are all mounted on the rear surface of the door panel 12, the stored documents can be taken out and stored without being hindered by the mounting member 40 attached to the rear surface of the door panel 12 and the wireless communication device 30.

[0056] Therefore, the signal control system 1 of this example can easily perform installation work, inspection work, etc. of the system in which data communication with the control center is performed wirelessly.

[0057] <3. How to step up> Here, a step-up process will be described for installing a signal control device 20 in the housing 10 for an already installed signal control device 20 in which a communication device (which may be wireless or wired) for communicating with the control center is not installed in the housing 10. Figure 6 is a flowchart explaining this step-up process.

[0058] The worker opens the door panel 12 of the signal control device 20 installed around the intersection, and attaches the mounting member 40 to the back surface of the door panel 12 (s1). As described above, the worker attaches, for example, the door mounting portion 41 of the mounting member 40 to the back surface of the door panel 12 with double-sided tape.

[0059] The worker also holds the wireless communication device 30 in the wireless communication device mounting portion 42 of the mounting member 40 attached to the rear surface of the door panel 12 (s2).

[0060] The worker connects the signal control device 20 and the wireless communication device 30 with a cable (s3). By performing the steps s1 to s3, the worker can upgrade an already installed signal control device 20 that does not have a communication device (which may be wireless or wired) for communicating with the control center installed in the housing 10 to the signal control system 1 of the above example.

[0061] The order of performing s1 to s3 in the step-up process is not limited to the order shown in Fig. 6, and may be any order. For example, the order may be s2, s1, s3, s3, s1, s2, s1, s3, s2, or any other order.

[0062] <4. Modifications> Variation 1 This first modification is an example in which the length of the wireless communication device attachment portion 42 in the longitudinal direction of the attachment member 40 (length L2 shown in FIG. 5) is longer than the length of the wireless communication device 30.

[0063] 7 is a diagram showing a state in which a wireless communication device is held by an attachment member in Modification 1. In Modification 1, as shown in FIG. 7 , the wireless communication device 30 is held so as not to protrude outside the wireless communication device attachment section 42 in the longitudinal direction of the attachment member 40 (so that the wireless communication device 30 is fitted inside the wireless communication device attachment section 42). When the wireless communication device 30 is held so as to protrude outside the wireless communication device attachment section 42 in the longitudinal direction of the attachment member 40, the portion of the wireless communication device 30 that protrudes outside the wireless communication device attachment section 42 does not face the wireless communication device attachment section 42. In other words, when the wireless communication device 30 is held so as not to protrude outside the wireless communication device attachment section 42 in the longitudinal direction of the attachment member 40, the facing area between the wireless communication device attachment section 42 and the wireless communication device 30 can be made larger than when the wireless communication device 30 is held so as to protrude outside the wireless communication device attachment section 42. Therefore, when the wireless communication device 30 is held so as not to protrude outside the wireless communication device mounting portion 42 in the longitudinal direction of the mounting member 40, the holding force of the wireless communication device 30 in the mounting member 40 can be made greater than when the wireless communication device 30 is held so as to protrude outside the wireless communication device mounting portion 42. Therefore, when the wireless communication device 30 is held so as not to protrude outside the wireless communication device mounting portion 42 in the longitudinal direction of the mounting member 40, the wireless communication device 30 can be more prevented from coming off the wireless communication device mounting portion 42 than when the wireless communication device 30 is held so as to protrude outside the wireless communication device mounting portion 42.

[0064] Note that, as long as the wireless communication device 30 can be sufficiently prevented from coming off the wireless communication device mounting portion 42, the wireless communication device 30 may be held so as to protrude outside the wireless communication device mounting portion 42 in the longitudinal direction of the mounting member 40. In the longitudinal direction of the mounting member 40, the side from which the wireless communication device 30 protrudes outside the wireless communication device mounting portion 42 may be the door mounting portion 41 side or the side opposite to the door mounting portion 41 side.

[0065] Variation 2 In this second modification, the length of the wireless communication device attachment portion 42 in the longitudinal direction of the attachment member 40 (length L2 shown in FIG. 5) is shorter than the length of the wireless communication device 30.

[0066] 8(A) to 8(C) are diagrams showing an example of a state in which a wireless communication device is held by an attachment member in Modification 2. In Modification 2, when the wireless communication device 30 is held by the wireless communication device attachment portion 42, a part of the wireless communication device 30 protrudes outside the wireless communication device attachment portion 42 in the longitudinal direction of the attachment member 40.

[0067] Fig. 8(A) shows an example in which the wireless communication device 30 is held by the wireless communication device mounting portion 42 so as not to protrude toward the door mounting portion 41 in the longitudinal direction of the mounting member 40. Fig. 8(B) shows an example in which the wireless communication device 30 is held by the wireless communication device mounting portion 42 so as to protrude toward the door mounting portion 41 and on both sides opposite the door mounting portion 41 in the longitudinal direction of the mounting member 40. Fig. 8(C) shows an example in which the wireless communication device 30 is held by the wireless communication device mounting portion 42 so as not to protrude toward the opposite side of the door mounting portion 41 in the longitudinal direction of the mounting member 40.

[0068] 8(A) to 8(C), the holding force of the wireless communication device 30 in the mounting member 40 is substantially the same. However, the load applied to the mounting surface between the back surface of the door panel 12 and the door mounting portion 41 of the mounting member 40 differs between the states shown in FIGS. 8(A) to 8(C). Specifically, the longer the distance between the center of gravity of the wireless communication device 30 and the mounting position between the back surface of the door panel 12 and the door mounting portion 41 of the mounting member 40, the greater the load applied to the mounting surface between the back surface of the door panel 12 and the door mounting portion 41 of the mounting member 40. That is, the load applied to the mounting surface between the back surface of the door panel 12 and the door mounting portion 41 of the mounting member 40 decreases in the order of FIGS. 8(A), 8(B), and 8(C). The smaller the load applied to the mounting surface between the back surface of the door panel 12 and the door mounting portion 41 of the mounting member 40, the more likely it is that the door mounting portion 41 of the mounting member 40 will come off the back surface of the door panel 12. Therefore, in terms of the state in which the wireless communication device 30 is held by the mounting member 40, the state shown in Figure 8(C) is more preferable than the states shown in Figures 8(A) and 8(B), and the state shown in Figure 8(B) is more preferable than the state shown in Figure 8(A).

[0069] Variation 3 Figure 9 shows the mounting member of variant example 3, where Figure 9(A) is a plan view in the same direction as Figure 3 (the direction facing the back surface of the door panel 12), Figure 9(B) is a plan view in direction A shown in Figure 9(A), Figure 9(C) is a plan view in direction B shown in Figure 9(A), and Figure 9(D) is a plan view in direction C shown in Figure 9(A).

[0070] The mounting member 40 of this modified example 3 differs from the above examples in that it is formed with a receiving portion 45. The receiving portion 45 is formed on the wireless communication device mounting portion 42 of the mounting member 40, and protrudes toward the side where the wireless communication device 30 is mounted. Although Fig. 9 shows an example in which the receiving portion 45 is formed at one location in the longitudinal direction of the mounting member 40, it may be formed at multiple locations. Furthermore, although Fig. 9 shows the receiving portion 45 as a flat plate extending in the longitudinal direction of the mounting member 40, it may also be a plurality of rod-shaped protrusions or the like.

[0071] Here, as in Modification 2, Modification 3 will be described using as an example a case where the length of the wireless communication device attachment portion 42 in the longitudinal direction of the attachment member 40 (length L2 shown in FIG. 5) is shorter than the length of the wireless communication device 30. However, as in Modification 1, Modification 3 may also be configured such that the length of the wireless communication device attachment portion 42 in the longitudinal direction of the attachment member 40 (length L2 shown in FIG. 5) is longer than the length of the wireless communication device 30.

[0072] 10A and 10B are diagrams showing an example of a state in which a wireless communication device is held by an attachment member in Modification 3. In Modification 3, when the wireless communication device 30 is held by the wireless communication device attachment portion 42, a part of the wireless communication device 30 protrudes outside the wireless communication device attachment portion 42 in the longitudinal direction of the attachment member 40, similar to Modification 2.

[0073] 10(A) shows an example in which the wireless communication device 30 is held by the wireless communication device mounting portion 42 so as not to protrude toward the door mounting portion 41 in the longitudinal direction of the mounting member 40. Also, FIG. 10(B) shows an example in which the wireless communication device 30 is held by the wireless communication device mounting portion 42 so as not to protrude toward the opposite side of the door mounting portion 41 in the longitudinal direction of the mounting member 40.

[0074] The wireless communication device 30 is held by the wireless communication device mounting portion 42 with its bottom surface placed on the receiving portion 45. This prevents the wireless communication device 30 from slipping off the wireless communication device mounting portion 42 where it is held due to the action of gravity or the like.

[0075] Variation 4 Fig. 11 is a plan view showing the back surface of the door panel in the signal control system of Modified Example 4. Also, Fig. 12 is a view showing the mounting member, with Fig. 12(A) being a plan view in the same direction as Fig. 11 (the direction facing the back surface of door panel 12), Fig. 12(B) being a plan view in direction A shown in Fig. 12(A), Fig. 12(C) being a plan view in direction B shown in Fig. 12(A), and Fig. 12(D) being a plan view in direction C shown in Fig. 12(A).

[0076] The signal control system 1 of this modification 4 differs from the above examples in that the mounting member 40A has the shape shown in FIGS. 12(A) to (D) and is attached to the back surface of the door panel 12 as shown in FIG.

[0077] 12(A) to 12(D), the mounting member 40A of this modification 4 has door mounting portions 41A and 41B at both ends in the longitudinal direction. A wireless communication device mounting portion 42A is formed between the door mounting portion 41A and the door mounting portion 41B at both ends in the longitudinal direction. The door mounting portions 41A and 41B are attached to the back surface of the door panel 12, similar to the door mounting portion 41 of the above example. When the mounting member 40A is attached to the back surface of the door panel 12, the wireless communication device mounting portion 42A located between the door mounting portions 41A and 41B provided at both ends in the longitudinal direction is separated from the back surface of the door panel 12, creating a gap between the mounting member 40A and the back surface of the door panel 12.

[0078] In this fourth modification, the length L2 of the wireless communication device attachment portion 42A in the longitudinal direction may be longer or shorter than the length of the wireless communication device 30. However, this length L2 is longer than the width of the clear file in which the document storage 100 is stored. In other words, the attachment member 40A has a shape that allows the clear file in which the document storage 100 is stored to be inserted into the gap between the rear surface of the door panel 12 and the wireless communication device attachment portion 42A.

[0079] It should be noted that the length L1 in the longitudinal direction of the door mounting portion 41A and the length L3 in the longitudinal direction of the door mounting portion 41B shown in FIG. 12 may be the same length or may be different lengths.

[0080] In this fourth modification, the mounting member 40A is attached to the rear surface of the door panel 12 at both ends in the longitudinal direction, so that the mounting member 40A can be further prevented from coming off the rear surface of the door panel 12.

[0081] Furthermore, in this variant example 4, if the longitudinal length L2 of the wireless communication device mounting portion 42A is longer than the longitudinal length of the wireless communication device 30, the wireless communication device 30 can be mounted to the wireless communication device mounting portion 42A as described in variant example 1.

[0082] Furthermore, in this modification 4, when the length L2 in the longitudinal direction of the wireless communication device mounting portion 42A is shorter than the length in the longitudinal direction of the wireless communication device 30, the wireless communication device 30 may be held by the wireless communication device mounting portion 42A as described in modification 2. That is, in the longitudinal direction of the mounting member 40A, the wireless communication device 30 may be held by the wireless communication device mounting portion 42A so as not to protrude toward the door mounting portion 41A, or the wireless communication device 30 may be held by the wireless communication device mounting portion 42A so as to protrude on both the door mounting portion 41A side and the door mounting portion 41B side, or the wireless communication device 30 may be held by the wireless communication device mounting portion 42A so as not to protrude toward the door mounting portion 41B side.

[0083] Furthermore, the mounting member 40A of the fourth modification may be configured such that the receiving portion 45 described in the third modification is formed on the wireless communication device mounting portion 42A.

[0084] Variation 5 Figure 13 shows the mounting member of variant example 5, where Figure 13(A) is a plan view in the same direction as Figure 3 (the direction facing the back surface of the door panel 12), Figure 13(B) is a plan view in direction A shown in Figure 13(A), Figure 13(C) is a plan view in direction B shown in Figure 13(A), and Figure 13(D) is a plan view in direction C shown in Figure 13(A).

[0085] The mounting member 40A of this modification 5 differs from the above modification 4 in that position restriction portions 46A and 46B are formed. The position restriction portions 46A and 46B are formed on the wireless communication device mounting portion 42 of the mounting member 40. The position restriction portions 46A and 46B protrude toward the side where the wireless communication device 30 is mounted. The position restriction portions 46A and 46B are aligned in the longitudinal direction of the mounting member 40A. The position restriction portions 46A and 46B have a flat plate shape that extends in the short direction (height direction) of the mounting member 40. The distance L4 between the position restriction portions 46A and 46B is approximately the same as the length of the wireless communication device 30 in the longitudinal direction.

[0086] In the attachment member 40A of the fifth modification, the wireless communication device 30 attached to the wireless communication device attachment portion 42 is sandwiched between the position restriction portions 46A and 46B.

[0087] Furthermore, the mounting member 40A of the fifth modification may be configured such that the receiving portion 45 described in the third modification is formed on the wireless communication device mounting portion 42A.

[0088] Furthermore, in all of the above examples, the mounting members 40, 40A are attached to the back surface of the door panel 12 with the width direction of the door panel 12 being the longitudinal direction of the mounting members 40, 40A, but the mounting members 40, 40A may also be attached to the back surface of the door panel 12 with the height direction of the door panel 12 being the longitudinal direction of the mounting members 40, 40A.

[0089] Furthermore, the mounting members 40, 40A may have a shape such that the wireless communication device mounting portions 42, 42A are close to a square (a rectangle with approximately the same length and width) as long as the shape allows the storage document 100 to be removed and stored without being hindered.

[0090] It should be noted that the present invention is not limited to the above-described embodiments, and that the components can be modified and embodied in practice without departing from the spirit of the invention. Furthermore, various inventions can be formed by appropriately combining multiple components disclosed in the above-described embodiments. For example, some components may be omitted from all the components shown in the embodiments. Furthermore, components from different embodiments may be appropriately combined.

[0091] Furthermore, the correspondence between the configuration according to the present invention and the configuration according to the above-described embodiment can be described as follows: <Additional Notes> [Appendix 1] a signal control device (20) that switches the light color of a signal lamp (50) installed at an intersection based on signal control parameters stored in a memory unit (22); a wireless communication device (30) attached inside the housing (10) of the signal control device (20) and performing data communication with a control center by wireless communication; The housing (10) of the signal control device (20) is provided with a door panel (12) that can be opened and closed, and a mounting member (40) that is attached to the back surface of the door panel (12), The mounting member (40) has a first portion (41) having a mounting surface that is attached by abutting against the back surface of the door panel (12), and a second portion (42) that is spaced apart from the back surface of the door panel (12) when the mounting surface of the first portion (41) is attached by abutting against the back surface of the door panel (12), and has a shape in which the first portion (41) and the second portion (42) are aligned in an alignment direction, The signal control system (1) holds the wireless communication device (30) at the second portion (42) of the mounting member (40).

[0092] [Appendix 2] The signal control system (1A) described in [Appendix 1], wherein the mounting member (40A) has a shape in which the first portions (41A, 41B) are provided on both sides of the second portion (42A) in the arrangement direction.

[0093] [Appendix 3] The signal control system (1) described in [Appendix 1] or [Appendix 2], wherein the length of the second part (42) in the arrangement direction of the mounting member (40) is shorter than the length of the wireless communication device (30) held by the second part (42) in the arrangement direction.

[0094] [Appendix 4] The signal control system (1) described in [Appendix 3], wherein the wireless communication device (30) held by the second part (42) of the mounting member (40) protrudes toward the first part (41) in the arrangement direction.

[0095] [Appendix 5] The signal control system (1) described in [Appendix 4], wherein the wireless communication device (30) held by the second part (42) of the mounting member (40) does not protrude to the opposite side of the first part (41) in the arrangement direction.

[0096] [Appendix 6] The signal control system (1) described in [Appendix 1] or [Appendix 2], wherein the length of the second part (42) in the arrangement direction of the mounting member (40) is longer than the length of the wireless communication device (30) held by the second part (42) in the arrangement direction.

[0097] [Appendix 7] The signal control system (1) described in any one of [Appendix 1] to [Appendix 6], wherein the mounting member (40, 40A) has a shape having a receiving portion (45) in the second portion (42, 42A) that receives the bottom surface of the wireless communication device (30) held by the second portion (42).

[0098] [Appendix 8] The signal control system (1) described in any one of [Appendix 1] to [Appendix 7], wherein the mounting surface of the mounting portion (40, 40A) of the first portion (41, 41A, 41B) is attached to the back surface of the door panel (12).

[0099] [Appendix 9] The signal control system (1) according to any one of [Supplementary Note 1] to [Supplementary Note 8], wherein the wireless communication device (30) is held by a magnetic force on the second part (42) of the mounting member (40).

[0100] [Appendix 10] The signal control system (1) according to any one of [Supplementary Note 1] to [Supplementary Note 9], wherein the arrangement direction is a width direction of the housing of the signal control device.

[0101] [Appendix 11] A step-up method for stepping up a signal control system (1) by attaching a wireless communication device (30) that wirelessly communicates data with a control center to a signal control device (20) that switches the light color signals of a signal lamp (50) installed at an intersection based on signal control parameters stored in a memory unit (22), comprising: a step of attaching an attachment member (40) to the rear surface of a door panel (12) provided in a housing (10) of the signal control device (20) so as to be freely opened and closed, the attachment member (40) having a shape in which a first portion (41) having an attachment surface to be attached by abutting against the rear surface of the door panel (12) and a second portion (42) that is spaced apart from the rear surface of the door panel (12) when the attachment surface of the first portion (41) is attached by abutting against the rear surface of the door panel (12) are aligned in an arranging direction; holding the wireless communication device (30) on the second portion (42) of the mounting member (40); and a step of connecting the signal control device (20) and the wireless communication device (30) within the housing (10). [Explanation of symbols]

[0102] 1. Signal control system 10...Housing 11...Main body 12...Door panel 12a...Auxiliary door 20...Signal control device 21...Signal control section 22...Storage section 23…Input / output section 24...Mode switching operation section 25...Operation panel 30...Wireless communication device 31...Communication control unit 32…Input / output section 40, 40A...Mounting parts 41, 41A, 41B...Door mounting section 42, 42A...Wireless communication device mounting section 43...Upright section 45...Receiving part 46A, 46B...Position regulation part 50(50-1~50-n)...Signal lamp 100...Documents (documents received)

Claims

1. a signal control device that switches the light color of a signal lamp installed at an intersection based on the signal control parameters stored in a storage unit; a wireless communication device attached to the inside of a housing of the signal control device and performing data communication with a control center by wireless communication; The housing of the signal control device is provided with a door panel that can be opened and closed freely, and a mounting member that is attached to a back surface of the door panel, The mounting member has a first portion having a mounting surface that is attached by abutting against the rear surface of the door panel, and a second portion that is spaced apart from the rear surface of the door panel when the mounting surface of the first portion is attached by abutting against the rear surface of the door panel, and has a shape in which the first portion and the second portion are aligned in an alignment direction, The wireless communication device is held by the second portion of the mounting member.

2. The signal control system according to claim 1 , wherein the mounting member has a shape in which the first portion is provided on both sides of the second portion in the arrangement direction.

3. The signal control system according to claim 1 , wherein the length of the second portion of the mounting member in the arrangement direction is shorter than the length of the wireless communication device held by the second portion in the arrangement direction.

4. The signal control system according to claim 3 , wherein the wireless communication device held by the second portion of the mounting member protrudes toward the first portion in the arrangement direction.

5. The signal control system according to claim 4 , wherein the wireless communication device held by the second portion of the mounting member does not protrude to a side opposite the first portion in the arrangement direction.

6. The signal control system according to claim 1 , wherein the length of the second portion of the mounting member in the arrangement direction is longer than the length of the wireless communication device held by the second portion in the arrangement direction.

7. The signal control system according to any one of claims 1 to 6, wherein the mounting member is shaped to have a receiving portion in the second part that receives the bottom surface of the wireless communication device held by the second part.

8. The signal control system according to any one of claims 1 to 6, wherein the mounting member has the mounting surface of the first portion attached to the rear surface of the door panel.

9. 7. The signal control system according to claim 1, wherein the wireless communication device is held by a magnetic force on the second part of the mounting member.

10. 7. The signal control system according to claim 1, wherein the arrangement direction is a width direction of the housing of the signal control device.

11. A step-up method for stepping up a signal control system by attaching a wireless communication device that wirelessly communicates data with a control center to a signal control device that switches the light color of a signal lamp installed at an intersection based on signal control parameters stored in a storage unit, comprising: a step of attaching an attachment member to the rear surface of a door panel provided on a housing of the signal control device so as to be able to open and close freely, the attachment member having a shape in which a first portion having an attachment surface that is attached by abutting against the rear surface of the door panel and a second portion that is spaced apart from the rear surface of the door panel when the attachment surface of the first portion is attached by abutting against the rear surface of the door panel are aligned in an arranging direction; holding the wireless communication device on the second portion of the mounting member; a step of connecting the signal control device and the wireless communication device within the housing.

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