JPH0394597A - Terminal equipment for controlling remote monitoring - Google Patents

Abstract

PURPOSE:To reduce the production cost of the terminal equipment and to obtain its simple design by including an address setting part for setting up an inherent address and an optical signal receiving part for receiving inherent address data in the terminal equipment and aligning load operation displaying light emitting elements and light receiving element in an optical signal receiving part on the front face of a terminal equipment case. CONSTITUTION:The terminal equipment is constituted of load controlling switches S1 to S4 and load operation displaying light emitting diodes LDa, LDb arranged on the front face of the terminal equipment case, a signal processing circuit 10 for time- dividedly and multiplexedly transmitting the monitoring data of the switches S1 to S4 and the control data of the diodes LDa, LDb, an address setting part 11 consisting of an EEPROM in which inherent addresses are set up, and an optical signal receiving part 12 for receiving the inherent address data set up in the address setting part 11 as an optical signal. The diodes LDa, LDb and the light receiving elements in the optical signal receiving part are aligned on a printed circuit board, plural apertures corresponding to the light emitting diodes and the light receiving elements are formed on the front face of the terminal equipment case and the apertures are coated with light guides consisting of translucent resin.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a remote monitoring and control terminal that receives time-division multiplexed transmission signals from a central control unit and performs switch monitoring, load control, etc. It is. [Prior Art] FIG. 22 shows a schematic configuration of a remote monitoring and control system using a terminal for remote monitoring and control according to the present invention. S
, a plurality of monitoring terminals 2 for monitoring , a control terminal 3 for controlling loads L1 to L, a wireless relay terminal 7,
The external interface terminal 8 and the pattern setting terminal 9 are connected by a pair of signal lines 4, and the transmission signal Vs sent from the central controller 1 to the signal line 4 is shown in FIG. 23(a). As shown, a start pulse signal ST indicates the start of signal transmission, a mode data signal MD indicates the signal mode, an address data signal AD transmitting 8-bit address data for calling the terminals 2.3.7 to 9, and a load L.
, ~ a control data signal CD transmitting control data for controlling L4, a checksum data signal CS and a terminal device 2,
3. Return standby signal WT that sets the return period from 7 to 9
It is a bipolar (±24V) time-division multiplexed signal consisting of 24 V, and the data is transmitted by pulse width modulation. When the address data of the transmitted transmission signal Vs matches its own unique address data, the control data of the transmission signal Vs is taken in, and the monitoring data signal is sent to the current mode signal ( The signal lines 4 are short-circuited via an appropriate low impedance and sent back as a signal sent out.The central control unit 1 is also provided with a dummy transmission signal in which the mode data signal MD is in a dummy mode. 23(b), which is returned from any of the monitoring terminal 2 or wireless relay terminal 7, external interface terminal 8, or pattern setting terminal 9. When the interrupt signal Vi is received, the interrupt generating terminals 2.7 to 9 are detected and the terminals 2.7 to 9 are
Interrupt processing means is provided for accessing and returning monitoring data. The central control device 1 also uses the monitoring data sent back to the central control device 1 from the monitoring terminal 2 or the wireless relay terminal 7, the external interface terminal 8, and the pattern setting terminal 9 as described above. to create control data to be transmitted to the control terminal device 3 that controls the corresponding load L, ~L, and time-division multiplex transmits the control data to the control terminal device 3 via the signal line 4. Load L
, ~L,.

The wireless relay terminal 7 is a terminal that relays data of an optical wireless system consisting of an optical wireless transmitter X, an optical wireless receiver Y, and a wireless signal line 4a, and transmits an optical signal transmitted from the optical wireless transmitter is received by the optical wireless receiver Y, the received data is received via the wireless signal line 4a, and this data is transferred to the central control device 1.

The external interface terminal 8 is a terminal that performs data transmission with the external control device 8a, and the pattern setting terminal 9 transmits pattern control data input from the data input section 9a to the central control device 1. This is the terminal device that transfers data. The monitoring terminal 2 and the control terminal 3 installed in the distribution board 6 or relay control panel 6a have the dimensions agreed upon in the distribution board, and their control output enables the remote control relay for load control. (A latching relay that can be turned on and off using a hand switch) 5 is controlled.

By the way, conventionally, the address setting section of the above-mentioned monitoring terminal 2 or control terminal 3 has been configured as shown in FIG.
It was implemented using a dip switch DS, and a predetermined unique address was set at the time of construction. Additionally, other functional data such as the terminal type can also be set using the dip switch DS. [Problems to be Solved by the Invention] However, in the above-mentioned conventional example, since the dip switch DS is required, the configuration becomes complicated and the cost increases, and the address setting operation is troublesome. was there. Therefore, the address setting section is formed using an EEPROM, and the unique address data is transferred to the EEPROM using an optical signal transmitted from a data setting device.
It may be possible to simplify the configuration and make address setting operations easier by electrically writing to the address.
However, if the light-receiving element for receiving optical signals was placed anywhere on the front of the terminal case, the light-receiving element would stand out, creating a design problem. The present invention has been provided in view of the above-mentioned points, and its purpose is to simplify the ellipse, reduce costs, simplify address setting operations, and
The object of this invention is to provide a remote monitoring and control terminal with a clean design without making the light-receiving element stand out. [Means for Solving the Problems] The remote monitoring and control terminal of the present invention includes a load control switch and a light emitting diode for displaying load operation disposed on the front surface of the terminal case, and A signal processing circuit that time-division multiplex transmits monitoring data of load control switches and control data of light emitting diodes for displaying load operation to and from a central control device, and an address setting section consisting of an EEPROM in which a unique address is set. , a remote monitoring and control terminal consisting of an optical signal receiving section that receives unique address data set in the address setting section as an optical signal, and a light emitting diode for displaying load operation and an optical signal receiving section on the printed circuit board. The printed circuit board is housed in a terminal case, and a plurality of openings corresponding to the light emitting diodes and the light receiving elements are provided on the front surface of the terminal case, and the plurality of openings are transparent. It is covered with a light guide made of photosensitive resin.

In claim 2, a load control switch and a light emitting diode for displaying load operation are provided on the front surface of the terminal case;
A signal processing circuit that time-division multiplex transmits load control switch monitoring data and load operation display light emitting diode control data to and from the central control device when accessed from the central control device, and a signal processing circuit that transmits data such as unique addresses and functions A terminal for remote monitoring and control, comprising an address setting section made of an EEPROM in which data is set, and an optical signal receiving section that receives unique address data set in the address setting section as an optical signal. Light-emitting diodes for displaying load operation and light-receiving elements for the optical signal receiving section are mounted on the circuit board in one row, and the printed circuit board is housed in the terminal case, and the front of the terminal case accommodates the light-emitting diodes and light-receiving elements. A plurality of openings are provided to cover the plurality of openings, a light guide made of translucent resin is covered, and the load control switch is operated to control the size of the operation handle provided on the front of the terminal case. It is approximately the same size as the terminal case. According to a third aspect of the present invention, four operating handles each having a size obtained by dividing the operating handle into four parts are integrally formed. According to a fourth aspect of the present invention, three operating handles each having a size obtained by dividing the operating handle into three parts are integrally formed.

Furthermore, in a fifth aspect of the present invention, two operating handles having a size obtained by dividing the operating handle into two are integrally formed. [Function] The present invention is configured as described above, and an address setting section in which a unique address is set is formed of an EEPROM,
Since it is a remote monitoring and control terminal equipped with an optical signal receiving section that receives the unique address data set in the address setting section as an optical signal, the configuration is simple and costs can be reduced, and the address setting operation is easy. It looks like this. In addition, a light emitting diode for displaying load operation and a light receiving element of an optical signal receiving section are mounted in one row on a printed circuit board, and a plurality of light emitting diodes and a light receiving element corresponding to the light receiving element are mounted on the front surface of a terminal case that houses the printed circuit board. By providing apertures and covering the plurality of apertures with light guides made of translucent resin, it is possible to provide a remote monitoring and control terminal with a clean design without the light-receiving element conspicuous. ing.

According to a second aspect of the present invention, an address setting section in which data such as a unique address and functions are set is formed of an EEPROM, and an optical signal receiving section is provided to receive the unique address data set in the address setting section as an optical signal. Since it is used as a supervisory control terminal, the configuration is simple and costs can be reduced, and the address setting operation is simple. Also, the address settings can be freely rewritten, and for example, when the load is a lighting load. data such as functions etc.
By storing it in E F ROM, it can be used as a multi-function switch with functions such as individual control, pattern control, dimming control, temporary lighting, and delay. In addition, a light emitting diode for displaying load operation and a light receiving element of an optical signal receiving section are mounted in one row on a printed circuit board, and a plurality of light emitting diodes and a light receiving element corresponding to the light receiving element are mounted on the front surface of a terminal case that houses the printed circuit board. By providing apertures and covering the plurality of apertures with light guides made of translucent resin, it is possible to provide a remote monitoring and control terminal with a clean design without the light-receiving element conspicuous. ing. Furthermore, the size of the operating handle located on the front of the terminal case is approximately the same as the size of the terminal coos, making the operating handle larger and easier to operate. In claim 3, by integrally forming four operation handles having a size obtained by dividing the operation handle into four, the four operation handles used when controlling four loads can be integrated, It makes assembly easy. In claim 4, three operating handles each having a size obtained by dividing the operating handle into three parts are integrally formed, so that the three operating handles used for controlling three loads can be integrated and assembled. is facilitated.

Furthermore, in claim 5, two operating handles having a size obtained by dividing the operating handle into two are integrally formed, so that the two operating handles used when controlling two loads are integrated. , making assembly easy. [Embodiment] Fig. 1 shows a monitoring terminal device 2 that monitors switches 81 to S.
This embodiment shows a signal processing circuit 10 consisting of a microcomputer, an address setting section 11 formed of an EEPROM, a photodiode PD and a transistor Qs. An optical signal receiving section 12 consisting of a light emitting diode LD and a transistor Q, an optical signal transmitting section 13 consisting of a light emitting diode LD and a transistor Q, a power supply circuit 14 consisting of a Zener diode ZD and a transistor Q2, and a return circuit consisting of a resistor R and a transistor Q. 15, a reset circuit 16,
It is formed by an oscillation circuit 17. Here, signal 814
The transmission signal Vs transmitted via the diode bridge DB is rectified by the diode bridge DB, and is input to the signal input terminal of the signal processing circuit 10 via the transistor Q, and the circuit of each terminal circuit including the signal processing circuit 10. The power supply is the transmission signal Vs
The rectified voltage is supplied via a power supply circuit 14 that makes the rectified voltage constant. Further, the signal processing circuit 10 determines whether the unique address data set in the address setting section 11 matches the address data of the received transmission signal Vs, and stores control data to be transmitted subsequently when the addresses match. In addition, it controls the light emitting diodes LDa and LDb for load operation display (on → red, off → green), and also controls the switch S.
1 to S, to form monitoring data, and send the monitoring data from the return circuit 15 to the tPL mode signal (signal &
A low-resistance resistor R is inserted between i4, and a return signal V to be sent back to the central controller 1 is sent to the signal line 4. On the other hand, the writing of data to the EEPROM that controls the address setting section 11 is performed by the signal processing circuit 10, and the data to be written is processed by signal processing of the signal received by the optical signal receiving section 12. The second
Predetermined 32-bit data as shown in the figure is written. Here, the signal received by the optical signal receiving section 12 is as follows:
This is an optical wireless signal transmitted from a data setting device (not shown), and a response signal such as a reception confirmation signal is transmitted from the optical signal transmitting unit 13 as an optical wireless signal, and a communication between the monitoring terminal 2 and the data setting device is transmitted. 3 to 8 show an embodiment of the present invention, in which switches S, ~S, are integrated into the monitoring terminal 2. This figure shows the structure and arrangement state of the terminal device 2. That is, on the front surface of the terminal device case 20, there are four load control switches S, -S, and corresponding light emitting diodes LDa. The terminal case 20 is comprised of a box-shaped case body 20a that is open to the front, and a cover 20b that is integrally formed with a mounting piece 21. Case body 20a
The cover 20b can be assembled by engaging the engaging protrusion 27b provided on the side surface of the cover 20b with the engaging hole 27a of the engaging piece. The mounting piece 21 is provided with a decorative cover mounting screw hole 21d and a mounting hole 2lb for direct wall mounting. A mounting portion is formed by the scissor fitting mounting hole 21c. Moreover, the operation block 22 of the switches S to S4 is covered with the front surface of the cover 20b by engaging the engagement claw 28 with the engagement hole 28a of the cover 20b. , one end of four operating handles 23 is connected to a connecting piece 25 via a thin elastic piece 24, and a name force bar 2 is installed in the recessed portion of the front surface of each operating handle 23.
6 is attached by press fitting.

Further, on the back surface of the operating handle 23, a switch pressing rib 23b is protruded, and a return spring piece 23a is integrally protruded, and this return spring piece 2'3a comes into elastic contact with the front surface of the cover 20b. It is designed to provide elastic force to return the operating handle 23 to its original position. Furthermore, an engagement protrusion 29 for preventing lifting is integrally provided on the back surface of the other end of the operating handle 23, and a cover 20b is provided.
The operation handle 23 can be prevented from lifting by engaging with the engagement hole 29a formed in the. Further, on the front surface of the cover 20b, a protective rib 24a having a triangular cross section is formed to protect the hinge portion made of the elastic piece 24, and is capable of coming into contact with the base of the elastic piece 24. This protective rib 2
By supporting the hinge portion at the apex of 4a, the elastic piece 24 is prevented from being excessively deformed and destroyed, thereby improving reliability. Note that the protective rib 24a is formed to have a triangular cross section, so that the operating handle 23 does not come into contact with the protective rib 24a in the normal operating range. In addition, load operation display light emitting diodes LDa, LDb,
Photodiodes PD and light emitting diodes LD for transmitting and receiving optical wireless signals are mounted on a printed circuit board 30 in one row. 20b includes a protruding opening 31 formed corresponding to the light emitting diodes LDa, LDb and causing the light emitting diodes LDa, LDb to protrude, and an optical signal transmission/reception opening 32 corresponding to the photodiode PD and the light emitting diode LD.
and switch Sl-S. A protrusion hole 34 is provided through which the operating section 33 protrudes. Further, an operation display opening 31a corresponding to the opening 31 is also provided in the connecting piece 25 of the operation block 22.
An opening 32a corresponding to the opening 32 is provided, and a light guide 35 made of a translucent resin is covered with both the openings 31a and 32a (fitted into a groove 36 formed in the connecting piece 25). ．． Further, a filter 37 such as an infrared transmission filter that selectively transmits and receives only optical signals is fitted into the opening 32a. By the way, when installing the switch terminal device 2 in the embedded wiring box 40, as shown in FIG. After installing the handle in the wiring box 40, install the operation block 22 on the front of the terminal case 20.
, attach the makeup bar frame 42 to the mounting piece 21 with the mounting screws 43, and fit the makeup cover 44 to the makeup bar frame 42. In this case, since the operation block 22 is installed after the terminal case 20 is attached, the operation block 22 should be formed in a size that covers the attachment part (that is, covers the entire front surface of the terminal case 20). This means that the operating handle 23 can be made as large as possible.

The operation of the embodiment will be explained below. Now, the data (32 bits) written to the EEPROM forming the address setting section 11 includes 4 bits of page data, 4 bits of upper address data, 4 bits of lower address data, and 4 bits of load number data,
These are 8-bit identification data, 4-bit reply data A, and 4-bit reply data B, and can be written and read as needed by the signal processing circuit 10. In other words, if the unique address, terminal type, control method, or monitoring method is changed during system construction or when changing the load or switch layout, the data setter can be used to set the specified data. When the settings are made and an optical wireless signal is transmitted, this optical wireless signal is received by the optical signal receiving section 12 and the signal processing circuit 10
The signal-processed data is written into the EEPROM of the address setting section 11. In this case, the EEPROM
Since data is preserved even in the event of a power outage, there is no need for a backup power source, and data can be rewritten electrically, making it easy to change unique addresses.

Further, light emitting diodes LDa, LDb, photodiodes PD, and light emitting diodes LD for displaying load operation are mounted on the printed circuit board 30 in a row, and the light emitting diodes and light receiving diodes are mounted on the front of the terminal case 30 that houses the printed circuit board 30. A plurality of openings 31, 32, corresponding to the elements.
31a and 32a are provided, and a light guide made of translucent resin is covered, and the light receiving element of the optical signal receiving section l2 is disposed in the load operation display section, so it is disposed on the front of the terminal case 20. This makes it possible to provide a remote monitoring and control terminal with a clean design in which the light-receiving element does not stand out. [Example 2] Example 2 is shown in FIGS. 9 to 12. The functions etc. are the same as in the previous embodiment, and the different parts will be explained. That is, only one switch S is provided, and the size of the operation handle 23 of the operation block 22 is made almost the same as the size of the cover 20b of the terminal device case 20. In other words, the size of one operating handle 23 in this embodiment is the size of the four operating handles 23 in the previous embodiments.

One switch S is mounted on the printed circuit board 30,
In addition, a set of light emitting diodes LDa and L for displaying load operation are provided.
Db, photodiode PD, and light emitting diode LD
is mounted on the printed circuit board 30. Although the position of the engagement hole 29a at one end of the cover 20b is different from that in the previous embodiment, the function is the same, and two elongated openings 31 are formed at the other end. cover 20
Ribs 49a for positioning when the terminal device coos 20 is connected are provided at both upper and lower ends of b. Approximately L in the shape that 49b fits together
It is formed into a mold. Then, the arm 36 of the operation block 22
There is an opening 3 through which the light emitting diodes LDa and LDb can be seen.
1a, and an opening 32a through which a light emitting diode LD and a zoto diode PD can be viewed. A groove 48 into which a label 47 is fitted is formed in the center of the operating handle 23, which has a piano touch type hinge spring structure with elastic pieces 24, and return spring pieces 23a are integrally formed on both sides of the groove 48. There is. Further, the name force bar 26 that is fitted into the recess 23C on the front surface of the operating handle 23 is also formed to be long and large. Other elliptical commands in the operation block 22 are the same as in the previous embodiment.

This switch terminal device 2 is assembled and constructed as follows. First, insert the terminal board 50 into the case body 2oa, caulk the ribs 50a, and fasten the terminal screws 51 to the terminal board 50. Connect the signal lead wire 30a of the printed circuit board 30 to the terminal board 50. Then, cover the nameplate 52 with the cover 20.
After attaching the printed circuit board 30 to the case body 20a, the printed circuit board 30 is fitted into the case body 20a. Next, attach the light guide 35 to 71136 of the operation block 22 with double-sided tape. Then, move the label 47 to the operating handle 23.
48, then fit the name cover ↓゛26. The engaging protrusion 29 and the engaging claw 28 of the operation block 22 are covered with the cover 2.
The operation block 22 is inserted and locked into the engagement hole 29a and the engagement hole 28a of the cover 20b, respectively, and the operation block 22 is fitted into the cover 20b. Next, attach the nameplate 53 to the case body 20a. FIG. 11 shows a state in which the decorative cover 44 is attached,
The operation handle 23 is configured as one large piece, making it extremely easy to operate. Figure 12 shows the circuit diagram, which is basically the same ellipse as the circuit in Figure 1. However, in this embodiment, the switch S
, is configured with only one, the signal of the switch S1 is sent to the terminal IN. of the signal processing circuit lO. only is entered. In addition, since an EEPROM is used as a memory for data in the address setting section 11 in the same way as in the previous embodiment, data is transmitted to this EEPROM by the data setting device as described above, and the address and lighting load are stored in the EEPROM. It is designed to store data for functions such as individual control, pattern control, group control, dimming, temporary lighting, and delay. Therefore, the content of address settings can be freely rewritten, and various functions can be controlled.
This switch terminal device 2 constitutes a multi-function switch.

[Example 3] Example 3 is shown in FIGS. 13 to 15. This example is
Four switches Sl-S. This shows a case in which four operation handles 23, each having a size obtained by dividing the operation handle 23 of the second embodiment into four parts, are integrally formed. Therefore, in this embodiment, as in Embodiment I, the number of operation handles 23 is adjusted to match the number of operation handles 23. Four labels 47 and four name force bars 26 are provided, and a light emitting diode L is provided.
Four sets of Da, LDb, . . . are also provided. Note that the arrangement of each member is the same as in the case of FIG. 3, and compared to the case of FIG.
Da..., four sets of operating handles 23, etc. are provided. FIG. 14 shows the decorative cover 44 installed,
Figure 15 shows the circuit diagram. The circuit in FIG. 15 is the same as the circuit in FIG. 12, except that four switches S, .about.S, are provided. In this embodiment, in addition to having the same functions as in the third embodiment, four operation handles 23 are integrally formed, which improves ease of assembly. [Implementation es4] Example 4 is shown in FIGS. 16 to 18. This example is
It is possible to input signals from three switches S, -S3, and shows a case in which three operating handles 23, each having a size obtained by dividing the operating handle 23 of the second embodiment into three, are integrally formed. Therefore, in this embodiment, as in the first embodiment, three labels 47 and three name force bars 26 are provided in accordance with the number of each operation handle 23, and three sets of light emitting diodes LDa, LDb, etc. are provided. It is set up. Note that the arrangement of each member is the same as in the case of FIG. 3, and compared to the case of FIG.
Da..., three sets of operation handles 23, etc. are provided. FIG. 17 shows the state in which the decorative cover 44 is attached, and FIG. 18 shows the circuit diagram. In FIG. 18, the circuit is the same as the circuit in FIG. 12 except that three switches S, -S are provided. In this embodiment, in addition to having the same functions as in the third embodiment, three operation handles 23 are formed in one piece, thereby improving ease of assembly. [Example 5] Example 4 is shown in FIGS. 19 to 21. This example is
It is possible to input signals from two switches S, , S2, and shows a case in which two operating handles 23 having the size of dividing the operating handle 23 of the second embodiment into two are integrally formed. Therefore, in this embodiment, two labels 47 and two name force bars 26 are provided in accordance with the number of each operation handle 23 as in the first embodiment, and two light emitting diodes L are provided.
Two sets of Da, LDb... are also provided. The arrangement of each member is the same as in the case of FIG. 3, and compared to the case of FIG. 9, the switch S1..., the light emitting diodes LDa,
Da..., two sets of operation handles 23, etc. are provided. FIG. 20 shows the decorative cover 44 attached, and FIG. 21 shows the circuit diagram. In FIG. 21, switches SI+S. The circuit is the same as the one shown in Figure 12, except that two are provided. In addition to having the same functions as in the third embodiment, this embodiment improves the ease of assembly by forming two operation handles 23 in one piece. [Effects of the Invention] The present invention is configured as described above, and an address setting section in which a unique address is set is formed of an EEPROM,
Since it is a remote monitoring and control terminal equipped with an optical signal receiving section that receives the unique address data set in the address setting section as an optical signal, the configuration is simple and costs are low, and the address setting operation is easy. There is an effect that it can be done. In addition, a light emitting diode for displaying load operation and a light receiving element of an optical signal receiving section are mounted in one row on a printed circuit board, and a plurality of light emitting diodes and a light receiving element corresponding to the light receiving element are mounted on the front surface of a terminal case that houses the printed circuit board. Since openings are provided and the plurality of openings are covered with light guides made of translucent resin, it is possible to provide a terminal for remote monitoring and control with a neat design without the light receiving element standing out. be. In claim 2, a load control switch and a light emitting diode for displaying load operation are provided on the front surface of the terminal case;
A signal processing circuit that time-division multiplex transmits load control switch monitoring data and load operation display light emitting diode control data to and from the central control device when accessed from the central control device, and a signal processing circuit that transmits data such as unique addresses and functions A remote monitoring and control terminal device comprising an address setting part made of an EEPROM in which data is set, and an optical signal receiving part which receives the unique address data set in the address setting part as an optical signal, and is a printed circuit. A light-emitting diode for displaying load operation and a light-receiving element of an optical signal receiving section are mounted on the board in one row, and the printed circuit board is housed in a terminal case, and the light-emitting diode and light-receiving element are mounted on the front of the terminal case. Provide multiple openings, cover the multiple openings with a light guide made of translucent resin, operate the load control switch, and adjust the size of the operating handle provided on the front of the terminal case. Since the size is approximately the same as the case, the address setting section where data such as unique addresses and functions are set is an EEPROM.
The remote monitoring and control terminal device is formed with It is easy to operate, and address settings can be freely rewritten.
For example, when the load is a lighting load, by storing function data in EEFROM, a multi-function switch with functions such as individual control, pattern control, dimming control, temporary lighting, and delay can be used. This has the effect of making it possible to In addition, a light emitting diode for displaying load operation and a light receiving element of an optical signal receiving section are mounted in one row on a printed circuit board, and a plurality of light emitting diodes and a light receiving element corresponding to the light receiving element are mounted on the front surface of a terminal case that houses the printed circuit board. Since openings are provided and the plurality of openings are covered with light guides made of translucent resin, it is possible to provide a remote monitoring and control terminal with a neat design without making the light receiving element stand out. Furthermore, by making the size of the operating handle disposed on the front of the terminal case approximately the same as the size of the terminal case, the operating handle can be made larger and easier to operate. It is something.

Further, in claim 3, since four operating handles each having a size obtained by dividing the operating handle into four are integrally formed, the four operating handles used when controlling four loads are integrated. , making assembly easier. In claim 4, three operating handles each having a size obtained by dividing the operating handle into three parts are integrally formed, so that the three operating handles used for controlling three loads can be integrated and assembled. This is something that can make it easier. Furthermore, in claim 5, since two operating handles having a size obtained by dividing the operating handle into two are integrally formed, the two operating handles used when controlling two loads are integrally formed. , making assembly easier.

[Brief explanation of drawings]

Fig. 1 is a circuit diagram of an embodiment of the present invention, Fig. 2 is an explanatory diagram of the same as above, Fig. 3 is an exploded perspective view of the same, and Fig. 4 is an exploded perspective view showing an example of arrangement in the embedded wiring box of the above. Figure, 5th
The figure is a perspective view of the main part of the same as the above, FIG. 6 is a sectional view of the main part of the same as the above, and the seventh [! 1 is a front view of the main part of the same as the above, FIG. 8 is a sectional view of the main part of the same as the above, FIG. 9 is an exploded perspective view of the second embodiment of the same, FIG. 10 is a front view of the cover of the same as the above, and FIG. 12 is a circuit diagram of the same as above, FIG. 13 is an exploded perspective view of Embodiment 3 of the above, and FIG. 14 is a front view of the terminal with the decorative cover attached.
The figure is a front view of the same as above, FIG. 15 is a circuit diagram of the same as above, FIG. 16 is an exploded perspective view of Example 4 of same as above, FIG. 17 is a front view of same as above, FIG. Fig. 19 is an exploded perspective view of the fifth embodiment same as above, Fig. 2011J is a front view of the same as above, Fig. 2
1 is a circuit diagram similar to the above, FIG. 22 is a schematic elliptical diagram of the remote monitoring and control system, FIG. 23 is an explanatory diagram of the same operation, and FIG. 24 is a front view of the conventional example. ■ is the central control unit, 2.3 is the terminal device, 4 is the signal line, 10
1 is a signal processing circuit, 1l is an address setting section, 12 is an optical signal receiving section, 20 is a terminal case, 23 is an operation handle, 3
0 is a printed circuit board, 31, 32, 31a, 32a are openings, S, -S are load control switches, La, Lb are light emitting diodes for displaying load operation, and PD is a light receiving element consisting of a photodiode. Figure 2 Lower address address Kamishu number 5'zu

Claims (5)

[Claims] (1) When accessed from the central control device, the load control switch monitoring data and A signal processing circuit that time-division multiplex transmits control data for light emitting diodes for displaying load operation, an address setting section consisting of an EEPROM in which a unique address is set, and receiving the unique address data set in the address setting section as an optical signal. A terminal device for remote monitoring and control consisting of an optical signal receiving section, in which a light emitting diode for displaying load operation and a light receiving element of the optical signal receiving section are mounted in one row on a printed circuit board, and the printed circuit board is connected to the terminal. The remote control device is housed in a device case, and has a plurality of openings corresponding to light-emitting diodes and light-receiving elements on the front surface of the terminal device case, and the plurality of openings are covered with a light guide made of translucent resin. Supervisory control terminal. (2) Monitoring data of the load control switch and light emitting diode for displaying load operation disposed on the front of the terminal case and the central control unit when accessed from the central control unit. A signal processing circuit that time-division multiplex transmits the control data of the light emitting diode for displaying load operation, an address setting section consisting of an EEPROM in which data such as unique addresses and functions are set, and the unique address data set in the address setting section. A terminal device for remote monitoring and control consisting of an optical signal receiving section that receives optical signals, in which a light emitting diode for displaying load operation and a light receiving element of the optical signal receiving section are mounted in one row on a printed circuit board, and the above-mentioned A printed circuit board is housed in a terminal case, and a plurality of openings corresponding to light emitting diodes and light receiving elements are provided on the front surface of the terminal case, and a light guide made of a translucent resin is covered with the plurality of openings, A terminal device for remote monitoring and control, characterized in that the size of the operation handle arranged on the front side of the terminal device case for operating the load control switch is approximately the same as the size of the terminal device case. (3) Claim 2 characterized in that four operating handles each having a size obtained by dividing the operating handle into four parts are integrally formed.
The described remote monitoring and control terminal. (4) Claim 2 characterized in that three operating handles each having a size obtained by dividing the operating handle into three parts are integrally formed.
The described remote monitoring and control terminal. (5) Claim 2 characterized in that two operating handles having a size obtained by dividing the operating handle into two are integrally formed.
The described remote monitoring and control terminal.