JP3210723B2 - Terminal function setting device for remote monitoring and control system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal function setting device of a remote monitoring and control system for setting a function of a terminal device connected to a main control device by a time division multiple access system using a wireless signal by light. It is.

[0002]

2. Description of the Related Art Conventionally, a configuration as shown in FIG. 15 has been known as a remote monitoring control system. The main control device 41 has a plurality of monitoring terminals 4 for monitoring the operation of the switches S _{1 to} S ₄ via a two-wire signal line Ls.
2, the load L ₁ a plurality of the control terminal unit 4 for controlling the ~L ₄
3 etc. are connected. Individual address data is set in the monitoring terminal 42 and the control terminal 43, respectively.
The main controller 41 recognizes the monitoring terminal 42 and the control terminal 43 using the address data.

The main controller 41 sends out a transmission signal Vs having a format as shown in FIGS. 16A and 16B to a signal line Ls. That is, the start pulse S indicating the start of signal transmission
T, mode data signal indicating the signal mode MD, the address data signal AD for transmitting address data for calling the monitoring terminal 42 and control terminal 43 to each other, the control data for controlling the load L ₁ ~L ₄ A multi-pole comprising a control data signal CD to be transmitted, a checksum data signal CS for detecting a transmission error, and a signal return period WT which is a time slot for receiving a return signal from the monitoring terminal 42 or the control terminal 43. (± 24 V) time-division multiplexed signal, and data is transmitted by pulse width modulation.

In each of the monitoring terminals 42 and the control terminals 43, when the address data of the transmission signal Vs received via the signal line Ls matches the set address data, the control data of the transmission signal Vs is transmitted. At the same time, the monitoring data signal is returned in the current mode (a signal transmitted by short-circuiting the signal line Ls via an appropriate low impedance) in synchronization with the signal return period WT of the transmission signal Vs.

The main controller 41 sets the mode data signal MD in a dummy mode, and a dummy transmission signal provided as an address data with an empty address not set in each monitoring terminal 42 and the control terminal 43. Is provided. The main control device 1 includes a monitor terminal 42 shown in FIG.
After detecting the monitoring terminal 42 that has generated the interrupt signal when receiving the interrupt signal Vi as shown in (c), there is also provided an interrupt processing means for accessing the monitoring terminal 42 and returning the monitoring data. . That is, the dummy signal is normally transmitted to the signal line Ls by the dummy signal transmitting means, and the interrupt signal V generated from the monitoring terminal 42 is transmitted.
When i is detected in synchronization with the start pulse signal ST of the dummy transmission signal, the main controller 4
From 1, the transmission signal Vs in which the mode data signal MD is set to the address confirmation mode is transmitted. Interrupt signal Vi
Receives the transmission signal Vs in the address confirmation mode, and returns the address data set in the monitoring terminal 42 in synchronization with the signal return period WT of the transmission signal Vs. In this way, the main controller 41 obtains the address of the monitoring terminal that has generated the interrupt signal Vi, and accesses the monitoring terminal 42 using the obtained address, thereby obtaining the monitoring terminal 4.
2 receives the monitoring data.

In the main control unit 41, based on the monitoring data returned from the monitoring terminal 42, the switches S _{1 to} S
_The load L for which the correspondence to ₄ is set in advance
Thereby creating a control data transmitting ₁ ~L ₄ to the control terminal 43 connected, transmits a transmission signal Vs containing the control data to the signal line Ls, the corresponding control terminal unit 4
3 to control the loads L _{1 to} L ₄ .

The monitoring terminal 42 and the control terminal 43 have a configuration as shown in FIG. 17 (the monitoring terminal 42 is shown in the figure). That is, a signal processing unit 21 including a dedicated integrated circuit incorporating a microprocessor is provided, and a switch S ₁ connected to the signal processing unit 21 is provided.
The function of delaying the loads L _{1 to} L ₄ on and off by the operations of S ₄ to S ₄ can be set by the function data stored in the storage unit 22. The address data is also stored in the storage unit 22.
An EEPROM is used as the storage unit 22, and the signal processing unit 2
The contents are rewritable through 1. The power of the monitoring terminal 42 is obtained by full-wave rectifying and stabilizing the transmission signal on the signal line Ls connected to the signal terminals T ₁ and T _2. Power supply circuit 23 is provided. The transmission signal is transistor Q ₁
And a return signal is sent to the signal line Ls as a current mode signal using the transistor Q ₂ and the resistor R ₂ . Further, a crystal oscillator X that determines the clock cycle of the signal processing unit 21 and a reset circuit 24 that resets the signal processing unit 21 when the power is turned on are connected to the signal processing unit 21.

The contents of the storage section 22 are set by a wireless signal using infrared rays from a setting device 44 (see FIG. 15) provided outside. The setting unit 44 is configured to set, confirm, and correct the function data and the address data stored in the storage unit 22. The signal processing unit 21 responds by transmitting wireless signals in each mode. Processing is performed. For transmission and reception of wireless signals, the signal processing unit 21 is connected to a wireless receiving unit 25 including a light receiving element P such as a photodiode and a wireless transmitting unit 26 including a light emitting element L such as a light emitting diode. Is done. When the wireless signal has been received normally, the wireless transmitter 26 sends a wireless signal for reception confirmation to the setting unit 44. The light receiving element P and the light emitting element L are arranged adjacent to each other, and transmit and receive a wireless signal through a light receiving window (not shown) formed also as a light emitting window in a case of the terminal.

On the other hand, the setting unit 44 is provided in FIG. 18 and FIG.
It has a configuration as shown in FIG. That is, the body 10
a and the cover 10b are connected to each other by using an assembling screw 11, and the setter main body 10 accommodates printed circuit boards 12a and 12b on which circuit components are mounted. On the printed circuit board 12a, a display 13 comprising a liquid crystal display is provided.
Are mounted together with the circuit components. Also, the printed circuit board 1
A large number of switch groups are mounted on 2b, and an operation sheet 14 having a rubber sheet provided with concavities and convexities serving as switch operation units is laminated on the printed circuit board 12b. Setting device body 1
The operation part 15 of the power switch is exposed on the side of the zero. Further, the setting device 44 uses a battery as a power source, and a battery cover 10c is detachably connected to the body 10a.

On the printed circuit board 12a, a light emitting element 16 composed of a light emitting diode and a light receiving element 17 composed of a photodiode are mounted close to each other for transmitting and receiving wireless signals. The light emitting element 16 and the light receiving element 17 transmit and receive wireless signals through an acrylic flat output window 18 attached to the position surface of the setting device main body 10.

[0011]

SUMMARY OF THE INVENTION The setting device 44 having the above-described structure is used.
In this case, since the output window 18 is wider than the size of the light emitting element 16 and the light receiving element 17,
It is difficult to accurately match the positions of the light receiving windows provided in the cases of the monitoring terminal 42 and the control terminal 43. This type of setting device 44 sets function data and address data individually for each monitoring terminal device 42 and each control terminal device 43. , A problem arises that a wireless signal is transmitted to the monitoring terminal 42 and the control terminal 43 which are not intended. Further, if the level of the wireless signal is reduced so that the wireless signal is not transmitted to the monitoring terminal 42 and the control terminal 43 that are not intended, a problem arises that the light quantity becomes insufficient when the position is shifted.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems, and it is possible to transmit / receive wireless only to / from a desired terminal, and to secure a wireless signal by setting the distance from the terminal to an appropriate distance. It is an object of the present invention to provide a terminal function setting device of a remote monitoring and control system that can transmit and receive data to and from a remote monitoring control system.

[0013]

SUMMARY OF THE INVENTION The present invention provides a function of a terminal by transmitting a wireless signal by light to a terminal connected to a main controller via a signal line in a time division multiple access system. A common configuration is that it is a terminal function setting device of a remote monitoring and control system that writes function data for setting terminal address and address data for setting the address of the terminal device to a storage unit provided in the terminal device.

[0014]

According to the first aspect of the present invention, there is provided a setting device main body provided with an output window for outputting a wireless signal generated from the light emitting element on one side, and the output window has a conical shape protruding in a wireless signal transmission direction. The translucent material as a continuum having the formed window main body and a guide surface whose front end surface is a plane having an area corresponding to the light receiving window of the wireless reception unit of the terminal and is protruded from the top of the window main body. It is formed.

According to the second aspect of the present invention, the setting device main body having an output window for outputting a wireless signal generated from the light emitting element on one side, and a portion corresponding to the output window of the setting device main body are detachably connected. A sight, and the sight has a ring-shaped sight corresponding to the front of the light emitting element and at a position away from the light emitting element by a predetermined distance and having a size corresponding to the light receiving window of the wireless receiving unit of the terminal device. I have.

According to the third aspect of the present invention, a light receiving element for receiving a wireless signal for confirmation of reception, which is returned when each terminal receives a wireless signal, and a level setting for setting the light emission level of the light emitting element in a plurality of levels Unit, and when the wireless signal is transmitted from the light emitting element, the light emitting level of the light emitting element is sequentially increased from the minimum level, and the same wireless signal is repeatedly transmitted. And a control unit for stopping transmission of the wireless signal.

[0018]

[0019]

According to the first aspect of the present invention, the output window provided in the setting device main body has a conical window main body protruding in the direction of transmitting a wireless signal, and the distal end surface is provided in the wireless receiving portion of the terminal. Since it is formed of a translucent material as a continuum having a plane with a corresponding area and a guide projection protruding at the vertex of the window main body, the light from the light projecting element The wireless signal can be converged on the guide protrusion, and the wireless signal can be transmitted only from the tip end surface of the guide protrusion. Sunawa <br/> Chi, will be delivered to the region which is limited Wa Iyaresu signal, moreover, if abutting the distal end surface of the guide projection to the light receiving window of the wireless receiving unit of the terminal device, and setting device The distance to the terminal can be regulated to an appropriate distance, and the influence of disturbance light can be eliminated.

According to the second aspect of the present invention, the sight is detachably connected to a portion corresponding to the output window of the setting device main body, and the sight corresponds to the front of the light projecting element and a predetermined distance from the light projecting element. A ring-shaped sight of a size corresponding to the wireless receiver of the terminal is provided at a position separated by a distance, so that the light emitting element of the setting device is at an appropriate distance from the light receiving window of the wireless receiver of the terminal. The position can be adjusted so as to be the same as the position, and the wireless signal can be reliably transmitted to the target terminal.

According to the third aspect of the present invention, the light receiving element for receiving the wireless signal for confirmation of reception, which is returned when each terminal receives the wireless signal, and the light emitting level of the light projecting element are set at a plurality of levels. The level setting unit and when transmitting a wireless signal from the light emitting element, the light emitting level of the light emitting element is sequentially increased from the minimum level in a stepwise manner, and the same wireless signal is repeatedly transmitted. And a controller for stopping transmission of the wireless signal when the wireless signal is transmitted, so that the wireless signal can be transmitted at a signal level as low as possible, and the transmission of the wireless signal to a terminal other than the intended terminal is prevented. Can be. Further, since the wireless signal is transmitted with the signal level being increased stepwise from the lower side, power consumption can be suppressed, and this is particularly advantageous in a setting device using a battery power supply. Further, since the wireless signal is transmitted with the signal level increased step by step until a wireless signal for confirmation of reception is received from the terminal, the wireless signal can be reliably received by the terminal.

[0022]

Embodiment (Reference Example) The basic configuration of the following reference example is the same as that of the conventional configuration, and therefore the description will focus on the differences. As shown in FIG. 3, the setting unit 44 includes a light emitting element 16 composed of a light emitting diode for transmitting a wireless signal to the terminal and a light receiving element 1 composed of a photodiode for receiving a wireless signal from the terminal.
7 is provided. An output signal from a control unit 30 composed of a dedicated integrated circuit having a microprocessor is input to the light emitting element 16 via a light emitting circuit 32, and an output of the light receiving element 17 is controlled via a light receiving circuit 33 to the control unit 30. 30 is input.
The display 13 which is a liquid crystal display performs a display corresponding to the output from the control unit 30 through the display driving circuit 34. Also, a backlight 35 for illuminating from the back of the display 13
And a backlight 35 is provided with a backlight circuit 36.
Is controlled via The switch group corresponding to the operation sheet 14 forms a key matrix 37 and is connected to the control unit 30. Further, the battery B is connected to the power supply circuit 38 via the power supply switch SW, and the power stabilized by the power supply circuit 38 is supplied to each circuit unit. The battery voltage is monitored by the voltage detection circuit 39 and is displayed on the display 13 when the battery voltage drops. In addition, a sound generation circuit 40 for driving the piezoelectric buzzer is provided, and performs notification such as transmission confirmation. The control unit 30 is reset by a reset circuit 31 when the power is turned on.

As shown in FIGS. 1 and 2, the adapter 1 is detachably attached to the setting device body 10. The adapter 1 has a mounting cylinder 1a detachably connected to the periphery of the surface of the setting device main body 10 on which the output window 18 is provided. The part 1b is provided in a protruding manner. A transmission window 1c having a size corresponding to the light receiving window of the wireless reception unit of the terminal device is opened in the cylindrical portion 1b. When the adapter 1 is attached to the setting device main body 10, a wireless signal is extracted through the transmission window 1c. It has become. The transmission window 1c is provided at a position corresponding to the front of the light emitting element built in the setting device main body 10.
The tip end surface of the cylindrical portion 1b is flat.

If the adapter 1 formed as described above is attached to the setting device main body 10, the transmission range of the wireless signal is restricted to a narrow range by the transmission window 1c, and the wireless signal is transmitted only to the intended terminal. Can be transmitted. In addition, since the distal end surface of the tubular portion 1b is flat, it can be brought into contact with the light receiving window of the terminal device. The wireless signal can be transmitted in a state where the distance can be maintained and the disturbance light is blocked. Furthermore, if a mark 1d such as an arrow is written on the peripheral surface of the mounting cylinder 1a of the adapter 1, it becomes a guide for the alignment, and the alignment is further facilitated. Since the adapter 1 is detachable, the same wireless signal may be transmitted to a plurality of terminals.
Can be removed if unnecessary.

(Embodiment 1) In this embodiment, as shown in FIGS. 4 and 5, an output window 18 provided in a setting device main body 10 is formed in a pyramid shape projecting in a wireless signal transmission direction. 18a and window main body 1
8a and a guide projection 18b protruding in the vicinity of the vertex is formed as a continuous body. Output window 18
Is formed of a translucent material such as acrylic, and is capable of transmitting infrared rays. The distal end surface of the guide projection 18b is formed so as to be a flat surface having an area corresponding to the light receiving window of the wireless receiving unit of the terminal. The output window 18 having such a shape functions to converge the light from the light emitting element provided in the setting device main body 10 to the guide protrusion 18b, and the wireless signal is transmitted only from the distal end surface of the guide protrusion 18b. Will be.

Therefore, similarly to the adapter 1 provided with the tubular portion 1b of the first embodiment, it is possible to transmit a wireless signal to a limited range. Moreover, the distance between the terminal device and the setting device can be kept constant by bringing the guide protrusion 18b into contact with the terminal device. Further, since the distal end surface of the guide protrusion 18b is flat, the guide protrusion can be formed on the terminal device. If the contact 18b is brought into contact, it is possible to prevent disturbance light from entering the light receiving window of the terminal. Further, in the configuration of the present embodiment, since the light from the light projecting element is converged on the guide projection 18b, there is an advantage that the light from the light projecting element is used without waste. It is desirable to provide a mark 2 such as an arrow on the peripheral surface of the setting device main body 10 so that the guide projection 18b and the light receiving window of the terminal device can be used as a guide for alignment. Other configurations are the same as in the first embodiment.

(Embodiment 2) In this embodiment, as shown in FIG. 6, a sighting device 3 formed by bending a wire made of a spring material is detachably attached to a setting device main body 10. As shown in FIG. 7, the sighting device 3 has a rectangular mounting portion 3a, a gauge piece 3b extending in a direction orthogonal to the output window 18 of the setting device main body 10, and an upright end at the tip of the gauge piece 3b. And a ring-shaped aim 3c. The mounting portion 3a is attached around the end of the setting device main body 10, and at this time, the setting device main body 10
Aiming 3c is positioned in front of the light emitting element built in.

Therefore, if the wireless signal is transmitted so that the sight 3c is brought into contact with the light receiving window of the wireless receiving section of the terminal, the wireless signal can be transmitted in a target direction, and transmitted to the target terminal. In contrast, wireless signals can be transmitted reliably. Further, since the gauge piece 3b is provided, the distance between the terminal device and the setting device is kept constant, and it is possible to keep the distance optimal for wireless signal transmission. In addition, sight 3
Since the wire is formed by bending a wire, it can be manufactured at low cost. The sight 3 can be removed when not needed. Other configurations are the same as in the first embodiment.

[0029] Reference Example described (Reference Example) The following is, as shown in FIGS. 8 and 9, but with the light projecting element 16 a plurality of (four). The light projecting element 16 is arranged so as to surround the light receiving element 17 in a plane parallel to the output window 18. Further, as shown in FIG. 10, each light emitting element 16 has a transistor Q
And a drive circuit having a buffer Bf, and is connected to the control unit 30. A drive circuit is provided for each light emitting element 16, and the same signal is input to each drive circuit.

According to this configuration, as shown in FIG.
The wireless signal can be transmitted over a relatively wide range, and the center line of the wireless signal transmitted from the setting device main body 10 can be made substantially coincident with the optical axis of the light receiving element 17. As a result, even if the position of the light projecting element 16 is slightly shifted with respect to the light receiving window 19 of the wireless receiving unit of the terminal, a wireless signal can be transmitted to the light receiving element P provided inside the terminal. Thus, wireless signals can be transmitted reliably. That is, if the light receiving window 19 is formed as shown in FIG. 11 and one of the light emitting elements 16 shown in FIG. 11 is not present, one of the areas A and B becomes a blind spot, and the setting device and the terminal Depending on the positional relationship with the device, wireless signals may not be exchanged, but according to the configuration of the present embodiment,
Since there are few areas where blind spots are formed, wireless signals can be reliably transmitted and received. Other configurations are the same as the conventional configuration.

(Embodiment 3) In this embodiment, as shown in FIG. 12, a level setting section is provided between the light projecting circuit 32 and the light projecting element 16 for the setting device circuit shown in FIG. Is different in that the D / A conversion circuit 4 is inserted. The D / A conversion circuit 4 receives the 4
The output level of the light emitting circuit 32 is controlled in accordance with the output of the bit. That is, the light emission level of the light emitting element 16 is set to 16
Set it in stages.

At the start of transmission of the wireless signal, the control unit 30 sets the light emission level of the light projecting element 16 to the minimum level that can be set by the D / A conversion circuit 4, as shown in FIG. Is sent. On the other hand, if the wireless signal (FIG. 14 (a)) transmitted from the setting device is received by the terminal device as described as the conventional configuration, the wireless signal of the reception confirmation is returned from the terminal device (FIG. 1).
4 (b)). Therefore, as described above, when a wireless signal for reception confirmation is not received when a wireless signal is transmitted from the setting device, it is determined that the wireless signal has not been transmitted to the terminal device, and the light emitting element 16 Is raised by one step, and the same wireless signal as the previous time is retransmitted. This operation is repeated until the reception confirmation wireless signal is received. When the wireless signal of the reception confirmation is received, the transmission of the wireless signal is stopped (in FIG. 13, the wireless signal is transmitted seven times, indicating that there is a response from the terminal).

According to the above operation, the setting device automatically adjusts the signal level of the wireless signal in accordance with the positional relationship between each terminal device and the setting device, so that the wireless signal can be transmitted reliably. . In addition, since the wireless signal is gradually increased from a small signal level, the power consumption can be kept relatively low. Other configurations are the same as the conventional configuration.

[0034]

[0035]

According to the first aspect of the present invention, the output window provided in the setting device main body is formed as a cone-shaped window projecting in the direction of transmitting a wireless signal, and the distal end surface is provided in the wireless receiving portion of the terminal device. Since it is formed of a translucent material as a continuum having a plane with a corresponding area and a guide projection protruding at the vertex of the window main body, the light from the light projecting element The wireless signal can be converged on the guide protrusion, and the wireless signal can be transmitted only from the tip end surface of the guide protrusion. Sunawa <br/> Chi, will be delivered to the region which is limited Wa Iyaresu signal, moreover, if abutting the distal end surface of the guide projection to the light receiving window of the wireless receiving unit of the terminal device, and setting device There is an advantage that the distance to the terminal device can be regulated to an appropriate distance and the influence of disturbance light can be eliminated.

According to a second aspect of the present invention, there is provided a sight which is detachably connected to a portion corresponding to an output window of the setting device main body, and the sight corresponds to a front of the light projecting element and a predetermined distance from the light projecting element. Since a ring-shaped sight of a size corresponding to the wireless receiver of the terminal is provided at a remote position, the light emitting element of the setting device is positioned at an appropriate distance and position with respect to the light receiving window of the wireless receiver of the terminal. Thus, the position can be adjusted so that the wireless signal can be reliably transmitted to the target terminal.

According to a third aspect of the present invention, there is provided a light receiving element for receiving a wireless signal for confirmation of reception which is returned when each terminal receives a wireless signal, and a level setting for setting a light emitting level of the light emitting element in a plurality of levels. Unit, and when the wireless signal is transmitted from the light emitting element, the light emitting level of the light emitting element is sequentially increased from the minimum level, and the same wireless signal is repeatedly transmitted. And a control unit for stopping transmission of the wireless signal, so that the wireless signal can be transmitted at a signal level as low as possible, and transmission of the wireless signal to terminals other than the intended terminal can be prevented. . Further, since the wireless signal is transmitted with the signal level being increased stepwise from the lower side, power consumption can be suppressed, and this is particularly advantageous in a setting device using a battery power supply. Further, since the wireless signal is transmitted with the signal level increased step by step until a wireless signal for confirmation of reception is received from the terminal, the wireless signal can be reliably received by the terminal.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a reference example .

FIG. 2 is a perspective view showing an adapter used in the same .

3 is a block circuit diagram of the same.

FIG. 4 is a perspective view showing the first embodiment.

FIG. 5 is a perspective view of a main part showing the same .

FIG. 6 is a perspective view showing a second embodiment.

FIG. 7 is a perspective view showing a sight used in the above .

FIG. 8 is an exploded perspective view showing a reference example .

FIG. 9 is a front view of an essential part showing the arrangement of the light projecting elements in the above .

FIG. 10 is a circuit diagram of a main part of the above .

FIG. 11 is an operation explanatory diagram of the above .

FIG. 12 is a block circuit diagram according to a third embodiment.

FIG. 13 is an explanatory diagram of the operation of the above .

FIG. 14 is an operation explanatory view of the above .

FIG. 15 is a schematic configuration diagram of a remote monitoring control system according to the present invention.

FIG. 16 is an explanatory diagram of an operation of the remote monitoring control system according to the present invention.

FIG. 17 is a circuit diagram of a monitoring terminal used in the remote monitoring control system according to the present invention.

FIG. 18 is a perspective view showing a conventional example.

FIG. 19 is an exploded perspective view showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Adapter 1b Tube part 1c Transmission window 3 Aiming device 3c Aiming device 4 D / A conversion circuit 10 Setting device main body 16 Light emitting element 17 Light receiving element 18 Output window 18a Window main body 18b Guide projection 19 Light receiving window 22 Storage unit 30 Control unit 41 Main Control device 42 Monitoring terminal 43 Control terminal 44 Setting device Ls signal line

Claims (3)

(57) [Claims] 1. Function data for setting a function of a terminal by transmitting a wireless signal by light to a terminal connected to a main controller in a time-division multiple access system via a signal line. A terminal device for a remote monitoring and control system which writes address data for setting an address of the terminal device in a storage unit provided in the terminal device, wherein the setting device body has an output window for outputting a wireless signal generated from the light emitting element on one side. The output window has a wireless signal transmission direction.
Conical window main body protruding from
Area corresponding to the light receiving window of the wireless
A guide projection protruding from the top of the window
A terminal function setting device for a remote monitoring and control system, wherein the terminal function is formed of a translucent material . 2. Function data for setting a function of a terminal by transmitting a wireless signal by light to a terminal connected to the main controller in a time-division multiple access system via a signal line. A terminal device for a remote monitoring and control system which writes address data for setting an address of the terminal device in a storage unit provided in the terminal device, wherein the setting device body has an output window for outputting a wireless signal generated from the light emitting element on one side. And attached to and detached from the part corresponding to the output window of the setting unit
And a sight that can be freely coupled.
End at a position corresponding to the front and a predetermined distance from the light emitting element
Of a size corresponding to the light receiving window of the wireless receiver
A setting device for a terminal function of a remote monitoring and control system, comprising a ring-shaped aim . 3. Function data for setting a function of a terminal by transmitting a wireless signal by light to a terminal connected to the main controller in a time-division multiple access system via a signal line. In the remote monitoring control system terminal function setting device for writing address data for setting the address of the terminal into a storage unit provided in the terminal device , each terminal device has a wire.
Acknowledgment wire returned when receiving a wireless signal
Light-receiving element for receiving the address signal and the light emission level of the light-emitting element
Level setting unit that sets the
The emission level of the light emitting element is minimized when transmitting wireless signals.
The same wireless signal that is gradually increased from the level
Repeatedly sending and receiving confirmation wire at the light receiving element
Stops sending wireless signals when a wireless signal is detected .
Setter terminal capabilities of the remote monitoring control system characterized by comprising a that controller.