JP2010199897A - Monitoring and control device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a monitoring and control device that can prevent a panel block from falling and is easy to handle for construction work and maintenance work. <P>SOLUTION: A monitoring and control device has a construction wherein: a panel block 20 having a liquid crystal display 51 is detachably fitted on the front face of a buried block 10 fixated on a wall, with an engagement click 24a fitted in an engagement hole 13 formed in the buried block 10; and a frame-shaped decorative plate 30 is disposed around the panel block 20. The decorative plate 30 has: a plate frame 31 fixated on the buried block 10 by a screw for plates; and a plate cover 32 fitted on the plate frame 31 from a front side thereof. The front wall 32a of the plate cover 32 is provided with a cover side exposure window 61b opened, in which the panel block 10 is fitted with no gap. Portions of both upper and lower surfaces of the panel block 10 on a rear side of the front wall 32a is provided with falling prevention protrusions 25, respectively. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a monitoring control apparatus used in a remote monitoring control system that performs load monitoring control by communication.

  Conventionally, remote monitoring control that transmits a transmission signal including on / off information of a switch through a signal line to perform remote monitoring control of the load, and controls the load such as opening / closing of a relay for turning on / off the load by the transmission signal. The system is known.

  The remote monitoring control system shown in FIG. 5 includes a control terminal 72 for controlling the load L, an operation terminal 71 for inputting an instruction to control the load L, and a transmission unit 70. 71, each control terminal 72, and the transmission unit 70 are connected by a two-wire signal line Ls.

  In the illustrated example, the load L is an incandescent lamp or a fluorescent lamp, and the control terminal 72 performs lighting control and dimming control of the load L. A control terminal 72 that performs dimming control is connected to the load L that is an incandescent lamp, and a control terminal 72 that performs lighting control and a control terminal 72 that performs dimming control are connected to the load L that is a fluorescent lamp. The two control terminals 72 are connected. The load L may be an incandescent lamp or a fluorescent lamp, an electric curtain, an electric screen, a fan coil of an air conditioner, a speaker, or the like.

  Terminal addresses are set in the operation terminal 71 and the control terminal 72. The operation terminal 71 is provided with a plurality of circuit switches, and each switch is assigned an address. Similarly, each load L is assigned an address. The transmission unit 70 includes a memory in which a control table in which a switch address is associated with a load address is stored.

  The transmission unit 70 is supplied with power from a commercial power source and periodically transmits a transmission signal. A bipolar pulse width modulation signal is used as the transmission signal, and the operation terminal 71 and the control terminal 72 secure the internal power supply by full-wave rectifying the transmission signal.

  As the transmission signal, a time division multiplex transmission signal is used, a start pulse indicating the start of signal transmission, mode data indicating the signal mode, address data for transmitting the address, and control data for transmitting control data for controlling the load L The transmission signal includes checksum data for detecting a transmission error and a signal return period which is a time slot for receiving a return signal from the operation terminal 71 or the control terminal 72.

  Each operation terminal 71 and each control terminal 72 are returned to the transmission unit 70 in the above-described signal return period using a current mode signal sent by short-circuiting the signal lines Ls (two) with appropriate impedance. I do.

  The transmission unit 70 always performs polling for periodically transmitting a transmission signal whose terminal address has been changed cyclically to the signal line. When a monitoring input by a switch operation or the like is generated in any of the operation terminals 71, the operation terminal 71 sends an interrupt signal synchronized with the start pulse of the transmission signal to the signal line Ls. The operation terminal 71 that has generated the interrupt signal enters a latch state in which the interrupt flag is set.

  On the other hand, when the transmission unit 70 detects the interrupt signal, it transmits a transmission signal in which the mode data is the search mode. When receiving the search mode transmission signal, the operation terminal device 71 in the latched state returns the terminal address in the signal return period, and the transmission unit 70 that has received the terminal address latches the operation terminal device 71 of the terminal address. It is confirmed that the operation terminal 71 has generated the interrupt signal by transmitting a transmission signal for requesting the return of the state and confirming whether it is in the latched state. If it is confirmed that the operation terminal 71 has generated the interrupt signal, a transmission signal for releasing the latch state is transmitted, and the latch state of the operation terminal 71 is released.

  When the transmission unit 70 receives a request from the operation terminal device 71 by the above-described operation, the transmission unit 70 requests the control terminal device 72 associated with the operation terminal device 71 to control the load L according to the control table. Next, a transmission signal for confirming the state of the load L to be controlled is sent out, and the load state is returned from the control terminal 72. The load state received from the control terminal 72 is confirmed by the transmission unit 70, and if the current load state is OFF, a transmission signal having a content that reverses the load state to ON is transmitted to the operation terminal 71.

  By the way, the remote monitoring control system shown in FIG. 5 includes the monitoring control device 1 that can instruct the control of each load L in place of each operation terminal device 71 and displays the load state on the display. . The monitoring control device 1 includes switches having the same number of circuits as the total number of switches included in each operation terminal 71, and is connected to the transmission device 70 through the signal line Ls to input an instruction to control the full load L. Can do.

  When the load is, for example, an electric curtain installed in a hotel guest room, the electric curtain can be operated with an operation terminal installed in the guest room when the monitoring control device is installed in another room such as a central control room. It can also be operated by a monitoring control device installed in the central management room. In the remote monitoring control system shown in FIG. 5, power is supplied to the monitoring control device 1 from a remote control transformer 73 that is a step-down transformer that steps down and outputs a commercial power supply.

  By the way, some monitoring control devices are used by being attached to a wall or the like (for example, see Patent Document 1). In Patent Document 1, in order to reduce the area occupied by the monitoring control device when mounted on a wall, a touch panel display including a liquid crystal display and a transparent touch switch arranged on the screen of the liquid crystal display is provided. The provided multifunction switch is used as a monitoring control device. The display content displayed on the liquid crystal display is switched by the operation of the touch switch, and various instructions can be input by a combination of the display content and the operation of the touch switch.

  As shown in FIG. 6, a monitoring control device (multifunctional switch) described in Patent Document 1 has a liquid crystal display on the front surface of an embedded block 10 fixed to a wall using an attachment member (not shown). A panel block 20 having a touch switch (not shown) and a touch switch (not shown) is detachably attached.

  As shown in FIG. 7, the embedded block 10 and the panel block 20 are electrically connected by a flat cable 56, and the panel block 20 collides with the floor even if the panel block 20 falls off the embedded block 10. And it is connected with the fall prevention string 57 so that it may not be damaged.

JP-A-10-243478

  In the monitoring control device described in Patent Document 1, since the panel block 20 and the embedding block 10 are connected by the fall prevention string 57, it takes time to perform the construction work for attaching the monitoring control device to the wall. Further, in the maintenance such as inspection and repair of the panel block 20, it is necessary to remove the fall prevention string 57 from the panel block 20, so that the maintenance work is troublesome.

  The present invention has been made in view of the above-described reasons, and an object of the present invention is to provide a monitoring and control apparatus that can prevent the panel block from dropping and can easily perform construction work and maintenance work.

  The invention of claim 1 is used in a remote monitoring control system that performs monitoring control of a plurality of loads by communication, a display device having a display screen, an operation input unit that receives operation input and can input a plurality of types of input information, A monitoring control apparatus comprising: a control unit that displays a load state on a display unit and uses input information as control information for instructing load control; and a communication circuit unit that transmits a communication command with a plurality of loads as monitoring control targets The embedded block is fixed to the construction surface in a form that fits the rear part in the construction hole formed on the construction surface, and the display block is provided on the embedded block holding the display so that the display screen is exposed to the front side. A panel block that has an engaging portion that overlaps with the engaged portion in the front-rear direction and that is detachably attached to the embedded block from the front and close to the front surface of the embedded block; A plate frame that has a frame-side exposed window and a holding piece that surrounds a peripheral surface that intersects the front surface of the panel block, and a plate frame that is fixed at a fixed position with respect to the construction surface; A plate cover that covers the front surface and has a front wall provided with a cover-side exposure window that exposes the front surface of the panel block, and a peripheral wall that surrounds the plate frame in a form facing the holding piece, and is fitted to the plate frame from the front. The cover-side exposed window is formed in a shape that allows the panel block to fit without a gap, and a drop prevention protrusion is provided on the rear surface of the front wall of the plate cover on the peripheral surface of the panel block. It is characterized by.

  According to a second aspect of the present invention, in the first aspect of the invention, the construction surface is a wall surface, and the fall prevention protrusions are respectively provided on the upper and lower peripheral surfaces of the panel block. .

  According to a third aspect of the present invention, in the first aspect of the present invention, the construction surface is a wall surface, and the drop prevention protrusions are respectively provided on the left and right peripheral surfaces of the panel block. .

  According to a fourth aspect of the present invention, in the first aspect of the invention, the construction surface is a wall surface, and the drop prevention protrusions are respectively provided on the upper and lower and left and right peripheral surfaces of the panel block. And

  According to a fifth aspect of the present invention, in the first aspect of the invention, the fall prevention protrusion is formed on the entire circumference of the panel block.

  According to a sixth aspect of the present invention, in any one of the first to fifth aspects of the present invention, the front surface of the fall prevention projection is in contact with the rear surface of the front wall of the plate cover.

  In the configuration described in claim 1, the cover-side exposed window is formed on the front wall of the plate cover so that the panel block fits without a gap, and is a portion that is behind the front wall of the plate cover on the peripheral surface of the panel block. Since the drop prevention protrusion protrudes, even if the engaging part is disengaged from the engaged part, the drop prevention protrusion can be brought into contact with the front wall of the plate cover to prevent the panel block from falling. There are advantages. The panel block is detachably attached to the embedding block from the front and close to the front surface of the embedding block, and the plate cover is fitted to the plate frame, so construction work is easy. The panel block can be removed from the embedding block simply by removing the frame from the plate frame and pulling the panel block forward, and there is an advantage that maintenance such as inspection and repair of the panel block can be easily performed.

  In the configuration described in claim 2, since the fall prevention protrusions are respectively provided on the upper and lower peripheral surfaces of the panel block, the fall prevention protrusions abut against the front wall of the plate cover at both the upper and lower parts of the panel block. There is an advantage that the fall of the panel block can be surely prevented.

  In the structure described in Claim 3, since the said fall prevention protrusion is each protrudingly provided in the left-right peripheral surface of the said panel block, an engaging part remove | deviates from an engaged part, and the upper part of a panel block is ahead. The fall prevention protrusions formed on the left and right peripheral surfaces can support the panel block in a distributed manner, and the panel block can be supported by the fall prevention protrusions formed on the upper surface. There is an advantage that the fall of the panel block can be surely prevented as compared with the structure of claim 2 which mainly supports the force of leaning forward.

  In the structure described in Claim 4, since the said fall prevention protrusion is each protrudingly provided by the up-and-down and left-and-right peripheral surface of the said panel block, Compared with the case where the drop prevention protrusion is formed on one side, the panel block can receive the force of falling forward more dispersedly, and more reliably prevent the panel block from dropping than the configuration of claim 2 or claim 3. There is an advantage that you can.

  In the structure described in Claim 5, since the said fall prevention protrusion is formed over the perimeter of the said panel block, the fall prevention protrusion is each formed in the up-and-down and left-right peripheral surface of the said panel block. Compared to the case, the panel block can receive the force of falling forward more dispersedly, and there is an advantage that the fall of the panel block can be prevented more reliably than the configuration of the fourth aspect.

  In the configuration described in claim 6, since the front surface of the drop prevention protrusion is in contact with the rear surface of the front wall of the plate cover, in addition to the engagement between the engagement portion and the engaged portion, the fall prevention Due to the contact between the projection and the front wall of the plate cover, the forward movement of the panel block is suppressed, and as a result, there is an advantage that the holding strength of the panel block in the embedded block can be increased.

It is the disassembled perspective view seen from the front side of embodiment. It is the disassembled perspective view seen from the rear side same as the above. It is a vertical sectional view same as the above. It is a horizontal sectional view same as the above. It is a figure which shows the structure of the remote monitoring control system using a prior art example. It is a side view of a prior art example. It is an exploded view of a prior art example.

  In the present embodiment, a monitoring control device used in the remote monitoring control system described in the background art section is exemplified. As shown in FIG. 1, the monitoring control device includes a touch switch 51 that is an operation input unit that receives an operation input, a liquid crystal display 52 that is a display, and a substrate on which various electronic components are mounted to realize an internal circuit. 53a, 53b (see FIG. 3). The internal circuit displays a load state on the liquid crystal display 52 and uses a control unit that uses the input information from the touch switch 51 as control information for instructing control of the load, and a communication command for a plurality of loads as monitoring control targets. And a communication circuit unit for transmission, and control information is transmitted to a transmission unit (not shown).

  The touch switch 51 is of a resistance pressure-sensitive type that outputs a contact point when a finger or the like touches the sheet-like member by arranging a large number of contact portions made of transparent electrodes on the transparent sheet-like member. Used to overlap the screen (front surface) of the liquid crystal display 52. The liquid crystal display 52 uses a matrix display type in which a backlight is integrated and a large number of pixels are arranged in a matrix in the vertical and horizontal directions. Characters and figures are displayed by combining the pixels. Information is input by a combination of the type of characters and figures displayed on the liquid crystal display 52 and the place where the finger touches the touch switch 51. That is, the touch switch 51 and the liquid crystal display 52 constitute a touch panel display.

  The monitoring control device is attached to the wall using an attachment member (not shown). That is, here, the wall surface is the construction surface to be attached. However, the construction surface is not limited to the wall surface, and may be one surface of a fitting or one surface of a pillar. Below, the upper and lower sides in the state which attached the monitoring control apparatus to the wall are demonstrated as upper and lower.

  In the present embodiment, the mounting member is embedded in order to keep the amount of protrusion from the wall surface small and to provide a uniform appearance with the commonly used embedded wiring apparatus and to reduce the cost. Use embedded boxes for built-in wiring devices. The embedding box is disposed behind a construction hole (not shown) formed in the wall surface.

  The monitoring control device has a buried block 10 having a substrate 53b (see FIG. 3), a touch switch 51 and a liquid crystal display 52, and a panel that is detachably attached to the buried block 10 by an engaging portion described later. A block 20 and a frame-shaped decorative plate 30 for concealing the construction hole are provided.

  The embedded block 10 includes an embedded body 11 that accommodates the substrate 53b therein. The embedded body 11 is formed in a shape and size that can be stored in the embedded box, and is inserted into the wall from the front of the construction hole. In the present embodiment, the embedded body 11 is formed in a size corresponding to an embedded box in which up to two mounting frames (not shown) can be mounted. The single mounting frame here means a mounting frame that can be mounted by arranging three wiring devices with unit dimensions standardized by JIS in the width direction (vertical direction) for embedded wiring devices. A dimension in which two mounting frames for a single station are connected in the left-right direction is referred to as “double station”. That is, the embedded body 11 of the present embodiment is set to a dimension that can be attached to the double embedded box.

  The embedded body 11 is provided with a power terminal portion (not shown) to which a power supply line for power supply is connected and a signal terminal portion (not shown) to which a signal line is connected on the rear side. Further, a pair of mounting plates 40 whose rear surfaces are in contact with the wall surfaces are extended from the front end portion of the peripheral surface of the embedded body 11 in a direction away from each other in the vertical direction. A pair of mounting plates 40 are provided with mounting holes 41 through which mounting screws (not shown) screwed into the embedding box are inserted from the front. The embedded block 10 is fixed to the wall by screwing the mounting screw into the embedded box and pressing the mounting plate 40 against the wall surface.

  The panel block 20 includes a thin box-shaped panel body 21 whose front surface is formed in a rectangular shape, and a touch switch 51 and a liquid crystal display 52 are accommodated in the panel body 21. As shown in FIG. 3, a display window 21 a that exposes the display screen of the liquid crystal display 52 is opened on the front surface of the panel body 21.

  A fitting projection 22 projects from the rear surface of the panel body 21, and a substrate 53 a is accommodated in the fitting projection 22. The embedded body 11 is provided with a fitting recess 12 that fits with the fitting protrusion 22 on the front side.

  As shown in FIGS. 1 and 2, a plurality of pairs of left and right notches 23 cut rearward are formed on the left and right side walls of the fitting protrusion 22. In the present embodiment, the notches 23 are formed in pairs on the upper and lower portions of the side wall. From the bottom surface of the notch 23, snap fitting fitting locking pieces 24 that are inserted into the fitting recess 12 together with the fitting protrusions 22 protrude rearward. Locking claws 24a project from the distal end portions of the pair of locking pieces 24 as engaging portions in directions away from each other in the left-right direction. The locking claw 24a is formed in a triangular shape having a maximum protrusion at the center in the front-rear direction in the horizontal cross section.

  On the left and right inner surfaces of the fitting recess 12, a plurality of latches into which each latching claw 24 a fits as an engaged portion when the rear surface of the panel body 21 comes into contact with the front surface of the mounting plate 40. The hole 13 is recessed. When the fitting protrusion 22 is inserted into the fitting recess 12, the locking claw 24 a comes into sliding contact with the inner surface of the fitting recess 12, the locking piece 24 is bent, and the fitting protrusion 22 is fitted into the fitting recess 12. And the locking claw 24 a is fitted in the locking hole 13. That is, the panel block 20 is supported by the embedded block 10.

  Further, since the locking claw 24a is formed in a triangular shape as described above, when the panel body 21 is pulled forward, the locking claw 24a bends and comes off from the locking hole 13. That is, the panel block 20 can be removed from the embedded block 10 by pulling the panel body 21 forward.

  The panel block 20 and the embedded block 10 are each provided with one of a pair of connectors 54a and 54b that are connected to each other. The connector 54a is provided so as to be exposed on the rear surface side of the fitting projection 22 of the panel block 20, and the connector 54b is projected forward from the bottom surface of the fitting recess 12, so that the panel block 20 is embedded in the embedded block. 10 is provided at a position where the connector 54a is connected to the connector 54a. That is, the panel block 20 and the embedded block 10 can be electrically connected by simply attaching the panel block 20 to the embedded block 10 without using a connection member such as a cable.

  A slot 55 into which a memory card (not shown) made of an SD memory card (registered trademark) as an external storage medium is inserted is provided on the left side surface of the fitting protrusion 22 of the panel block 20.

  When the panel block 20 is attached to the embedding block 10, the panel body 21 has a pair of mounting plates 40 having a vertical dimension so that they do not overlap the front ends of the pair of mounting plates 40 in the front-rear direction. It is formed to be smaller than the length dimension between the tips. That is, the front end portion of the mounting plate 40 is not covered with the panel body 21.

  A plate screw-in hole 42 into which a plate screw (not shown) for fixing the decorative plate 30 to the mounting plate 40 is screwed is provided at the tip of the mounting plate 40 that is not covered by the panel body 21.

  The decorative plate 30 includes a plate frame 31 that is fixed to the mounting plate 40 by a plate screw and covers the construction hole and the mounting plate 40, and a plate cover 32 for concealing the plate screw. The plate frame 31 is made of a metal material, and the plate cover 32 is made of a synthetic resin material.

  The plate frame 31 includes a front plate 31a having a front surface formed in a square shape, and a holding piece 31b extending rearward from the end surface of the front plate 31a and surrounding the peripheral surface of the panel body 21. The front plate 31a of the plate frame 31 is provided with a frame side exposure window 61a for exposing the front surface of the panel block 20, and an insertion hole 60 through which a plate screw is inserted from the front.

  The plate cover 32 includes a front wall 32a that covers the front surface of the plate frame 31 and a peripheral wall 32b that surrounds the plate frame 31 so as to face the holding piece 31b. The peripheral wall 32b is slidably contacted with the holding piece 31b of the plate frame 31. However, it is fitted to the plate frame 31 from the front side of the plate frame 31. The plate cover 32 is held by the plate frame 31 by the frictional force between the holding piece 31 b of the plate frame 31 and the peripheral wall 32 b of the plate cover 32.

  On the front wall 32a of the plate cover 32, a cover side exposure window 61b for exposing the front surface of the panel block 20 is opened. The cover-side exposed window 61b is formed to have substantially the same dimensions as the front surface of the panel body 21, and the panel body 21 fits into the cover-side exposed window 61b of the plate cover 32 without a gap.

  On the front plate 31a of the plate frame 31, a spacer 63 that abuts against the rear surface of the front wall 32a of the plate cover 32 protrudes forward, and the front wall 32a of the plate cover 32 is provided in the panel body 21 as shown in FIG. The spacer 63 abuts against the rear surface of the front wall 32 a of the plate cover 32 at a position surrounding the front end portion of the circumferential surface intersecting the front surface.

  In this embodiment, as shown in FIGS. 1 and 2, an impact is applied to the wall by opening and closing a door attached to the wall, and the locking claw 24a is removed from the locking hole 13 by the impact, and the panel block 20 is moved to the floor. Are provided on the upper and lower peripheral surfaces of the panel body 21 so as not to fall. The fall prevention protrusion 25 is formed at the rear end of the peripheral surface of the panel body 21. That is, the fall prevention protrusion 25 is formed behind the front wall 32a in a form in which a gap is provided between the plate cover 32 and the front wall 32a.

  As described above, the panel body 21 fits into the cover-side exposed window 61b of the plate cover 32 without a gap. Therefore, when the locking claw 24a is removed from the locking hole 13 and the panel block 20 moves forward, the fall prevention projection 25 Is brought into contact with the rear surface of the front wall 32a of the plate cover 32, and the panel block 20 is prevented from falling to the floor.

  Here, the front plate 31a of the plate frame 31 corresponds to the drop prevention protrusion 25 so that the drop prevention protrusion 25 does not obstruct the attachment / detachment of the panel block 20 when the panel block 20 is attached to and detached from the embedded block 10. A cut-out hole 62 is formed at the position where this occurs. That is, if the plate cover 32 is removed from the plate frame 31, the panel block 20 can be attached to and detached from the embedded block 10 without removing the plate frame 31 from the embedded block 10 (without removing the plate screw). it can.

  As described above, in this embodiment, the panel block 20 can be attached to the embedding block 10 only by moving the panel block 20 rearward, and the monitoring control device is more wall-mounted than the conventional configuration including the fall prevention string. Installation work to be attached to is easy. Further, after the plate cover 32 is pulled forward and removed from the plate frame 31, the panel block 20 is pulled forward and removed from the embedded block 10 (without removing the plate frame 31 from the embedded block 10). 20 inspections and repairs can be performed, and maintenance work can be easily performed.

  In the above-described configuration example, the example in which the fall prevention protrusions 25 are respectively provided on the upper and lower peripheral surfaces of the panel body 21 is shown. However, the drop prevention protrusions 25 may be provided on the left and right peripheral surfaces of the panel body 21. When the locking claw 24 a is removed from the locking hole 13, the upper portion of the panel block 20 falls on the plate cover 32, so that the drop prevention protrusions 24 protrude from the upper and lower peripheral surfaces of the panel body 21. The panel block 20 is prevented from dropping mainly by the fall prevention protrusions 25 formed on the upper surface. When the drop prevention protrusions 25 are provided on the left and right peripheral surfaces of the panel body 21, the force that the panel block 20 falls over can be distributed and received, and the panel block 20 can be more reliably prevented from falling. .

  Further, the panel block 20 has a configuration in which the drop prevention protrusions 25 are formed on the upper, lower, left and right peripheral surfaces of the panel body 21 and the drop prevention protrusions 25 are formed on one of the upper, lower, left and right peripheral surfaces of the panel body 21. It is also possible to adopt a configuration in which the force that falls on the plate cover 32 is received in a more dispersed manner.

  Further, the panel block 20 has a plate cover rather than the structure in which the fall prevention protrusions 25 are formed on the entire peripheral surface of the panel body 21 and the drop prevention protrusions 25 are formed on the upper, lower, left and right peripheral surfaces of the panel body 21. It is also possible to adopt a configuration in which the force that falls on 32 is received in a more distributed manner.

  In the above configuration example, a gap is provided between the fall prevention protrusion 25 and the front wall 32a of the plate cover 32, and the locking claw 24a is removed from the locking hole 13 and the panel block 20 is moved forward. The example in which the fall prevention protrusion 25 contacts the front wall 32a of the plate cover 32 is shown. On the other hand, a configuration in which the front surface of the fall prevention protrusion 25 is always in contact with the rear surface of the front wall 32a of the plate cover 32 may be employed. In this configuration, the drop prevention protrusion 25 and the front wall 32a of the plate cover 32 are in contact with each other, so that the holding of the panel block 20 in the embedded block 10 is assisted, and the locking claw 24a is prevented from being detached from the locking hole 13. Thus, the panel block 20 can be prevented from falling.

  By the way, in order to increase the holding force of the plate cover 32 in the plate frame 31 and to prevent the panel block 20 from falling down more reliably, a fitting nail for snap fit fitting is provided on the inner surface of the peripheral wall 32b of the plate cover 32. A configuration in which a mounting hole into which the mounting claw fits in the holding piece 31b of the plate frame 31 is provided. In this case, the mounting claws are formed in a triangular shape similar to the locking claws 24a so that the plate cover 32 can be removed from the plate frame 31 by pulling the plate cover 32 forward.

  In the present embodiment, the plate frame 31 is formed of a metal material, and the plate cover 32 is formed of a synthetic resin material. However, the plate frame 31 can be formed of a synthetic resin material. The plate cover 32 can also be formed of a metal material.

10 Embedded block 13 Locking hole (engaged part)
20 Panel block 24a Locking claw (engagement part)
25 fall prevention protrusion 31 plate frame 31a front plate 31b holding piece 32 plate cover 32a front wall 32b peripheral wall 51 touch switch (operation input unit)
52 Liquid crystal display (display)
61a Frame side exposed window 61b Cover side exposed window

Claims (6)

  Used in a remote monitoring and control system that monitors and controls multiple loads by communication, a display with a display screen, an operation input unit that can accept operation inputs and input multiple types of input information, and the load status on the display A monitoring control device having a control unit that displays and controls input information as control information for instructing control of a load, and a communication circuit unit that transmits a communication command with a plurality of loads as monitoring control targets. The embedded block fixed to the construction surface in a form that fits the rear part in the formed construction hole, and the engaged part provided in the embedded block holding the indicator so that the display screen is exposed to the front side A panel block that has an engagement portion that overlaps in the direction and is detachably attached to the embedded block from the front and close to the front surface of the embedded block, and a frame-side exposed window that exposes the front surface of the panel block A plate frame that has an established front plate and a holding piece that surrounds a peripheral surface that intersects the front surface of the panel block, is fixed at a fixed position with respect to the construction surface, and covers the front surface of the front plate of the plate frame and the panel block A cover-side exposure window including a front wall having a cover-side exposure window that exposes the front surface thereof, and a peripheral wall surrounding the plate frame in a form facing the holding piece, and a plate cover that is fitted to the plate frame from the front. The window is formed in a shape in which the panel block fits without a gap, and a fall prevention projection is provided on the rear surface of the front wall of the plate cover on the peripheral surface of the panel block. apparatus.   The monitoring control device according to claim 1, wherein the construction surface is a wall surface, and the fall prevention protrusions are respectively provided on upper and lower peripheral surfaces of the panel block.   The monitoring control apparatus according to claim 1, wherein the construction surface is a wall surface, and the fall prevention protrusions are respectively provided on left and right peripheral surfaces of the panel block.   The monitoring control device according to claim 1, wherein the construction surface is a wall surface, and the drop prevention protrusions are provided to protrude on the upper and lower and left and right peripheral surfaces of the panel block.   The monitoring control device according to claim 1, wherein the fall prevention protrusion is formed over the entire periphery of the peripheral surface of the panel block.   The monitoring control device according to any one of claims 1 to 5, wherein a front surface of the fall prevention protrusion is in contact with a rear surface of a front wall of the plate cover.

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