JPH04368728A - Card switch apparatus for remote control system - Google Patents

Abstract

PURPOSE:To provide a card switch apparatus for remote control system which can be used while being connected with a transmission wire of the remote control system and whose wiring becomes easy. CONSTITUTION:An apparatus main body 10 consists of terminals 30, 30 for transmission wire connection and to be connected with transmission wires and a terminal circuit part 60 to be connected with the terminals 30, 30 for transmission wire connection. Also the main body 10 consists of a photointerrupter 38 to detect that a card is inserted and a card detecting part 69 to give an observation input to the terminal circuit part 60 based on the detection output of the photointerrupter 38. When the observation input from the card detecting part 69 changes, the terminal circuit part 60 replays the reply data to instruct on/off of load corresponding to the observation input through the transmission wires based on the access from a main controlling apparatus after interruption process and thus on/off of corresponding load is carried out.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a card switch device for a remote control system.

0002

2. Description of the Related Art A card switch device that detects when a card is inserted and turns on the lights in the room is sometimes installed in a hotel room. In this case, since the lights in the room are turned on and off directly, it cannot be used in a system that is centrally managed at a front desk or the like.

On the other hand, there is a system that remotely controls lighting, etc. using time-division multiplex transmission, and this system has the advantage of being able to centrally monitor the load status, so it is convenient for hotels with many rooms. It was a system. Therefore, by incorporating the above card switch device into the system,
Lighting in a room in which a card switch device is installed can be turned on and off by remote control based on operation information of the card switch device.

FIG. 7 shows a schematic configuration of a conventional example of this system. In this system, a transmission line 2 consisting of a pair of lines from a main controller 1 is connected to a plurality of control terminals 3 and a monitoring terminal. A load, here a lighting load 5, is connected to the control terminal 3, and a card switch device 6 is connected to the monitoring terminal 4. The operation of this system will be explained based on the transmission signal shown in FIG. 8. Conventionally, the main controller 1 sends out a transmission signal Vs having the format shown in FIG. device 3 and monitoring terminal device 4 are controlled. That is, the transmission signal Vs includes a start pulse ST indicating the start of signal transmission,
A bipolar (±24V) consisting of mode data MD indicating the signal mode, address data AD, control data CD for controlling the load, checksum data CS for detecting transmission errors, and signal return period WT for setting the return period for reply data. ) is a time division multiplexed signal (FIG. 8(b)), and data is transmitted by pulse width modulation.

When the control terminal 3 and the monitoring terminal 4 each match the address data AD of the transmission signal Vs received via the transmission line 2 with their own address set in advance, the control terminal 3 and the monitoring terminal 4 terminate the transmission. The control data CD of the signal Vs is taken in, and the return data is sent to the current mode signal (transmission line 2) in synchronization with the signal return period WT of the transmission signal Vs.
The signal is sent back by short-circuiting the lines through an appropriate low impedance.

On the other hand, the main controller 1 is provided with dummy signal transmitting means and interrupt processing means. The dummy signal transmitting means always sends out a transmission signal Vs with the mode data MD in a dummy mode. Further, the interrupt processing means is configured to cause the monitoring terminal device 4 that generated the interrupt signal Vi to return reply data when the interrupt signal Vi shown in FIG. 8(c) is returned. That is, the monitoring terminal 4 is equipped with a non-voltage input terminal, and the switch output of the card switch device 6 is connected to this non-voltage input terminal, and when this switch output is turned on or off, the change in this switch input is detected. Interrupt signal V
It sends out i. In response to this interrupt signal Vi, the main control device 1 transmits a transmission signal Vs for address search for each group address in order to search for the terminal device that has issued the interrupt. The monitoring terminal 4 that has caused the interruption returns its own unique address as reply data when the group to which it belongs is accessed.

[0007] Through this return, the main control device 1 can determine the monitoring terminal 4 that caused the interrupt, and then transmits the transmission signal Vs having the address data AD of the monitoring terminal 4 to the monitoring terminal 4. The monitoring terminal 4 accesses the monitoring terminal 4 and causes the monitoring terminal 4 to send back the status of the connected switch output as reply data. Based on the reply data returned from the monitoring terminal 4 in this way, the main control device 1 sends the control data CD to the control terminal 3 that controls the lighting load 5 corresponding to the monitoring terminal 4. By creating the control data CD and time-division multiplexing the transmission signal Vs including the control data CD to the control terminal 3 via the transmission line 2, each lighting load 5 can be individually controlled on and off. ing.

In the main control device 1, a correspondence relationship with the control terminal device 3 to which the lighting load 5 to be controlled is connected is set in response to reply data from the monitoring terminal device 4, and according to this correspondence relationship, The lighting load 5 of the control terminal 3 is controlled to be turned on or off. The monitoring terminal device 4 and the control terminal device 3 rectify and smooth the transmission signal Vs that is constantly transmitted to the transmission line 2 and use it as a power source. In addition, in the control terminal 3, the power supply to the lighting load 5 is connected to the load power supply line (AC100V or AC2
00V), and in the card switch device 6 connected to the monitoring terminal 4, power is supplied to a display element for position display via an external power supply line 7.

Furthermore, the transmission line 2 is connected to a selector (not shown) having a large number of switches and display sections, and displays the status of the card switch device 6 connected to the monitoring terminal 4 and the corresponding lighting. It is possible to collectively monitor the operation status of the load 5 and a wall switch (not shown) connected to the monitoring terminal 4, and to control the lighting load 5 connected to the control terminal 3. Therefore, if this system is used in a hotel or the like, it has the advantage that it can be used to manage the status of the lighting load 5 in each room, occupancy, etc.

0010

However, in the above-mentioned system, since the card switch device 6 is used in combination with the monitoring terminal device 4, the wiring becomes complicated and there is a problem that wiring cannot be saved. The present invention has been made in view of the above-mentioned problems, and its purpose is to provide a card switch device for a remote control system that can be used by directly connecting to the transmission line of the remote control system and that simplifies wiring. It is on offer.

[0011]

[Means for Solving the Problems] In order to achieve the above-mentioned object, the invention according to claim 1 provides a method for connecting a plurality of terminal devices, each of which has an individually set address, through a transmission line consisting of a pair of lines. Connects to the control device and receives from the main control device to each terminal device address data that specifies each terminal device, transmission data to each terminal device, and return data from the terminal device to the main control device. A transmission signal including a signal return period for setting a period is time-division multiplexed, and a correspondence relationship based on addresses is set and connection is made to the other terminal device in response to a monitoring input input to one of the paired terminal devices. A card switch device used in a remote control system designed to control a load that has been detected, which includes a detection means for detecting a card inserted from a card insertion slot in the main body of the device, and a detection means according to a change point of the detection output of the detection means. and a terminal circuit section for creating reply data, an address setting section for setting a unique address, and a transmission line connection terminal for connecting the transmission line and the terminal circuit section,
When a transmission signal containing address data matching the address set by the address setting section is received from the transmission line,
The above reply data is sent back from the terminal circuit section to the main control device.

[0012] According to the second aspect of the present invention, a position display section is provided on the front of the main body of the device, and is turned off when a card is inserted into the card insertion slot and turned on when the card is not inserted.

[0013]

[Operation] According to the present invention, data is transmitted according to the insertion state of the card using the time division multiplex transmission method, so the number of wiring is reduced compared to the case where the load is controlled by directly connecting the load. In addition, by connecting the transmission line to the transmission line connection terminal, it can be directly used as a terminal for a remote control system, and the wiring construction is simpler than the conventional configuration in which the transmission line is connected to a monitoring terminal.

[0014] Also, on the front of the main body of the device, there is a position display section that turns off when the card is inserted into the card slot and turns on when the card is not inserted, so the position is displayed. You can easily find it even in places where the lighting equipment is not lit.

[0015]

[Examples] The present invention will be explained below with reference to Examples. Figure 2,
The device main body 10 shown in FIG. 3 has dimensions corresponding to a medium-sized rectangular outlet box a cover 13 made of a synthetic resin molded product having an outer shape, an opening on the back side, and a fitting opening 12 on the top surface;
An upper cover 16 made of a synthetic resin molded product having a card insertion slot 14, fitted into the fitting opening 12 of the cover 13, and having a flange fixed to the cover 13 by ultrasonic heat bonding;
A body 17 made of a synthetic resin molded product is attached to the back side of the body 3.

The cover 13 has an inverted triangular hole 18 in the center of the upper front, and the head of a light emitting diode LED having a triangular cross section is fitted into the hole 18 from the back side and exposed on the front side. . A position display section is formed by exposing the light emitting diode LED. Furthermore, locking holes 20 are provided on both sides of the upper part of the rear opening of the cover 13, into which locking protrusions 19 of the mounting frame 11, which will be described later, are engaged, and furthermore, locking holes 20 are provided at positions slightly below the position where the locking holes 20 are provided. is provided with a locking hole 22 into which a locking protrusion 21 provided on both sides of the upper end of the body 17 is inserted;
In addition, locking protrusions 2 provided on both sides of the body 17 are provided on both inner surfaces.
3 is provided with a locking recess 15 for locking. More cover 1
3 has a recess 25 with a rear opening into which a fixing piece 24 protruding from the lower side of the mounting frame 11 in the front direction is inserted.
Corresponding to the recess 25, an insertion hole 27 is provided on the lower surface of the cover 13 for inserting a screw 26 into the recess 25 from the outside.

The body 17 has a terminal plate 28 on the back side for connecting the transmission line 2 of the remote control system, and this terminal plate 28.
A transmission line connection terminal 3 consisting of a terminal screw 29 screwed into the
0 is provided, the locking protrusions 23 are integrally provided on both side pieces 17a, and the locking protrusions 21 are integrally provided on both sides of the upper end. Furthermore, a notch 33 corresponding to the recess 25 and a cover 13 are provided on one side of the lower part of the body 17.
A window hole 35 for exposing an address setting switch 34 mounted on a printed circuit board 32 housed in the recess and a window hole 37 for exposing a load number setting switch 36 are formed.

The printed circuit board 32 is equipped with circuit elements of a terminal circuit section 60, an address setting switch 34, and a load number setting switch 36, which will be described later, as well as a board 39 mounted with a photointerrupter 38 for detecting a card. , the lead wire 40 connected to the terminal plate 28 is soldered and connected, and the lead wire 42 from the board 41 on which the light emitting diode LED is mounted is soldered and connected inside the lower recess 43 of the cover 13. It is placed on a rib 44 that projects integrally with the cover 13 along the peripheral wall and is accommodated in the lower recess 43. At this time, the card insertion gap 38A of the photo interrupter 38 faces toward the card insertion slot 14.

The board 41 is placed on a rib 46 protruding into the upper recess 45 of the cover 13, and a mounting screw 47 inserted into the hole 46a of the rib 45 through the insertion hole 48 is screwed and fastened. As a result, it is housed and fixed within the upper recess 45. When attaching the body 17 to the cover 13, fit the body 17 into the rear opening of the cover 13 while engaging the locking protrusion 21 at the upper end of the body 17 into the locking hole 20 of the cover 13, and then Locking protrusion 23 provided on piece 17a
are engaged in the locking recesses 15 on both inner surfaces of the cover 13 to fix the body 17 to the cover 13.

In this way, the photo interrupter 38,
A body 17, a cover 13, which includes a terminal circuit section 60, etc.
When attaching the device main body 10, which is made up of the upper cover 16, to the outlet box The mounting frame 11 is attached to the opening of the outlet box X by screwing it into the mounting screw hole 51 of the outlet box X.

Next, while fitting the terminal block 31 of the body 17 into the central opening of the mounting frame 11, the entire device main body 10 is moved downward from above so that the back side of the device main body 10 is aligned with the mounting frame 11. The locking protrusions 19 provided by cutting and raising the upper ends of both sides of the mounting frame 11 are connected to the cover 1.
3, and insert the fixing pieces 24 of the mounting frame 11 into the recesses 25. In this state, the device main body 10 is temporarily fixed to the mounting frame 11. In this state, the screw 26 is inserted into the recess 25 into the insertion hole 27 on the lower surface of the cover 13, and the screw hole 24a of the fixing piece 24 is inserted. By screwing and fastening, the device main body 10 is fixed to the mounting frame 11, and the mounting portion of the device main body 10, including the mounting frame 11, can be hidden from view from the front.

As shown in FIG. 4(c), the screw 26 inserted into the insertion hole 27 has a small diameter portion 26c without a screw between the screw portion 26a and the head 26b. is press-fitted into an insertion hole 27 formed in the cover 13, which is a molded product shown in FIGS. Incidentally, the circuit configuration of the terminal circuit section 60, photointerrupter 38, and light emitting diode LED built into the device main body 10 is configured as shown in FIG.

The terminal circuit section 60 includes transmission line terminals 30, 3
a full-wave rectifier 61 that rectifies the transmission signal Vs superimposed on the transmission line 2 connected to the A voltage circuit 62, a receiving circuit 63 that receives and extracts the transmission signal Vs, and an address setting section 6 that sets a unique address as a terminal device using the address setting switch 34.
4, a load number setting section 65 consisting of a load number setting switch 36 for specifying a predetermined load among a plurality of loads that can be controlled by the corresponding control terminal 3, and a load number setting section 65 that reads the data received by the receiving circuit 63. A signal processing circuit 66 performs signal processing as a terminal device, such as determining address matching, reading control data CD, capturing monitoring input, and creating reply data. A reply circuit 67 that short-circuits the transmission line 2 through the rectifier 61 and sends out a reply signal, an oscillation circuit 69 that provides a basic clock to the signal processing circuit 66, and a reset circuit that resets the signal processing circuit 66 at the time of system start, etc. It is composed of a circuit 68 and the like, and a detection signal from a card detection unit 69 that outputs a card detection signal based on a detection signal from the photointerrupter 38 is connected to the monitoring input port. Further, a light emitting diode LED of a position display section is connected to the control output port.

The photo-inleraptor 38 drives a light-emitting element 38a with the rectified output of the full-wave rectifier 61, and the light from the light-emitting element 38a is received by a light-receiving element 38b. When the card is blocked by the inserted card, the output of the card detection unit 69 becomes "H" as shown in FIG. It's supposed to be.

When a system is constructed by connecting the card switch device A of the present invention to a remote control system as shown in FIG. 4, when a card is inserted into the device main body 10,
The signal processing circuit 6 of the terminal circuit section 60 responds to the rise of the detection signal of the card detection section 69 in response to the card insertion.
6 sends the interrupt signal Vi to the main control device 1 through the reply circuit 67 as described above, and then receives the transmission signal Vs for interrupt processing from the main control device 1 and returns the corresponding address data. After that, in response to a request for a reply to the monitoring input from the main controller 1, command data is sent to turn on the load corresponding to the set load number, in this case the lighting load 5, in response to the rise of the detection output of the card detection unit 69. is sent back as reply data through the reply circuit 67.

The main control device 1 creates control data CD to turn on a predetermined lighting load 5 of the control terminal 3 corresponding to the card switch device A as shown in FIG. 5(b) in accordance with the reply data. , the control terminal 3 is accessed by the transmission signal Vs having the control data CD, and the lighting load 5 is turned on. Furthermore, based on this turning on, control data for turning off the light emitting diode LED of the position display section of the card switch device A is transmitted to the card switch device A using the transmission signal Vs. The card switch device A
Then, the signal processing circuit 66 turns off the light emitting diode LED based on the received control data CD of the transmission signal Vs. When the card is removed from the device main body 10, the detection signal of the card detection section 69 falls, and in response to this falling, the signal processing circuit 66 of the terminal circuit section 60 sends an interrupt signal Vi through the reply circuit 67 as described above. is sent to the main control device 1, after receiving the transmission signal Vs for interrupt processing from the main control device 1 and processing the reply of the corresponding address data, in response to a reply request for the monitoring input from the main control device 1. Accordingly, in response to the fall of the detection output of the card detection unit 69, command data for turning off the lighting load 5 corresponding to the set load number is sent back as reply data through the reply circuit 67.

The main control device 1 creates control data to turn off a predetermined lighting load 5 of the control terminal 3 corresponding to the card switch device A in accordance with the reply data, and uses the transmission signal Vs having this control data to The control terminal 3
access and turn off the lighting load 5. Also, based on this off state, control data for lighting up the light emitting diode LED of the position display section of the card switch device A is transmitted to the card switch device A using the transmission signal Vs. This transmission signal Vs received by the card switch device A
The signal processing circuit 66 lights up the light emitting diode LED based on the control data CD.

By lighting the light emitting diode LED, the position of the device main body 10 can be known even if the lighting load 5 is turned off.

[0029]

[Effects of the Invention] According to the present invention, since data is transmitted according to the insertion state of the card using a time division multiplex transmission method,
The number of wires is smaller than when controlling the load by directly connecting the load, and by connecting the transmission line to the transmission line connection terminal, it can be used as a terminal for a direct remote control system, and can be used as a monitoring terminal. This has the effect of simplifying wiring construction compared to the conventional configuration in which the cable is connected to the

[0030] Also, on the front of the main body of the device, there is a position display section that turns off when the card is inserted into the card slot and turns on when the card is not inserted, so the position is displayed. This has the effect that it can be easily found even in places where lighting equipment is not lit.

[Brief explanation of the drawing]

FIG. 1 is a circuit block diagram showing one embodiment of the present invention.

FIG. 2 is an exploded perspective view of an embodiment of the present invention.

FIG. 3 is an exploded perspective view of a device main body according to an embodiment of the present invention.

FIG. 4 is an explanatory diagram of a main part of a screw removal structure according to an embodiment of the present invention.

FIG. 5 is a timing chart for explaining the operation of the present invention.

FIG. 6 is a schematic configuration diagram of a remote control system using the present invention.

FIG. 7 is a schematic configuration diagram of a conventional remote control system.

FIG. 8 is an explanatory diagram of transmission signals used in the remote control system.

[Explanation of symbols]

2 Transmission line 10　　　　　Device body 38 Photo interrupter 60 Terminal circuit section 69 Card detection section

Claims (2)

[Claims] Claim 1: A plurality of terminal devices each having an address set individually are connected to a main control device via a transmission line consisting of a pair of lines, and the main control device connects each terminal device to each terminal device. A transmission signal including separately specified address data, transmission data to each terminal device, and a signal return period that sets a period for receiving return data from the terminal device to the main control device is time-division multiplexed, A card switch device used in a remote control system that controls a load connected to one terminal device in response to a monitoring input input to one terminal device that is paired with a correspondence relationship based on addresses, the device comprising:
A detection means for detecting a card inserted from the card insertion slot of the device body, a terminal circuit section for creating reply data according to a change point in the detection output of the detection means, and an address setting section for setting a unique address. , is provided with a transmission line connection terminal that connects the transmission line and the terminal circuit section, and when a transmission signal containing address data matching the address set by the address setting section is received from the transmission line, the terminal circuit section sends the above-mentioned reply. A card switch device for a remote control system characterized by sending data back to a main control device. 2. The device according to claim 1, further comprising a position display section provided on the front of the main body of the device, which turns off when the card is inserted into the card insertion slot and turns on when the card is not inserted. Card switch device for remote control system.