JPH0678363A - Setting device for terminal function of remote supervisory control system - Google Patents

Abstract

PURPOSE:To facilitate position matching by providing a visible ray transmission means and a visible ray receiving means so as to send/receive a wireless signal being the visible ray between a terminal equipment and a setting device. CONSTITUTION:A setting device main body 30 is provided with a projecting element 16 comprising a light emitting diode sending a wireless signal to a terminal equipment and a light receiving element 17 comprising a photo diode receiving the wireless signal from the terminal equipment. The elements 16, 17 send/receive a visible ray. A window 36 projected by a transparent material to transmit through the visible ray is provided projectingly to a position opposite to the elements 16, 17 at the outer side face of the main body 30. Furthermore, a back light 35 comprising a light emitting diode is arranged to a rear side of the display device 12, and the display content of the display device 12 is easily observed by lighting the light 35. The transmission position of a wireless signal is confirmed through visual observation by using the visible ray.

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 the function of a terminal device connected to a main control unit by a time division multiple access system using a wireless signal. .

[0002]

2. Description of the Related Art Conventionally, a remote monitoring control system having a structure as shown in FIG. 3 has been known. The main controller 41 includes 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,
The main control device 41 recognizes the monitoring terminal device 42 and the control terminal device 43 using this address data.

The main control unit 41 is connected to the signal line Ls as shown in FIG.
A transmission signal Vs having a format as shown in (a) and (b) is transmitted.
That is, the transmission signal Vs includes the start pulse ST indicating the start of signal transmission and the mode data signal M indicating the signal mode.
D, address data signal AD for transmitting address data for individually calling the monitoring terminal 42 and control terminal 43, control data signal CD for transmitting control data for controlling the loads L _{1 to} L ₄ , transmission error Multi-polar (± 24V) time-division multiplex signal composed of a checksum data signal CS for detecting a signal, a signal return period WT which is a time slot for receiving a return signal from the monitoring terminal 42 and the control terminal 43 Thus, 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 as capturing, the monitoring data signal is returned as a current mode (a signal sent by short-circuiting the signal line Ls via an appropriate low impedance) in synchronization with the signal returning period WT of the transmission signal Vs.

Further, the main control device 41 has a dummy transmission signal in which the mode data signal MD is set to a dummy mode and a vacant address which is not set in each monitoring terminal device 42 and control terminal device 43 is provided as address data. A dummy signal transmitting means for transmitting is transmitted. In the main controller 41, after detecting the monitoring terminal device 42 that has generated the interrupt signal when receiving the interrupt signal Vi as shown in FIG. ,
An interrupt processing means for accessing the monitoring terminal device 42 and returning the monitoring data is also provided. That is, the dummy signal is normally transmitted by the dummy signal transmitting means to the signal line Ls.
And the interrupt signal Vi generated from the monitoring terminal 42 is detected in synchronization with the start pulse signal ST of the dummy transmission signal, the interrupt processing means sets the mode data signal MD from the main controller 41 to the address confirmation mode. The transmission signal Vs is transmitted. Interrupt signal V
When receiving the transmission signal Vs in the address confirmation mode, the monitoring terminal 42 that has generated i returns the address data set in the monitoring terminal 42 in synchronization with the signal return period WT of this transmission signal Vs. . In this way, the main control device 41 acquires the address of the monitoring terminal device which has generated the interrupt signal Vi, and accesses the monitoring terminal device 42 by using the acquired address, thereby monitoring from the monitoring terminal device 42. It receives the data.

In the main control unit 41, the switches S _{1 to} S are based on the monitoring data returned from the monitoring terminal 42.
Load L for which correspondence to ₄ is preset
_The control data to be transmitted to the control terminal 43 to which _{1 to} L ₄ are connected is created, and the transmission signal Vs including the control data is sent to the signal line Ls, and the corresponding control terminal 4 is generated.
3 by transmitting control data for controlling the load L ₁ ~L _4.

By the way, the monitoring terminal device 42 and the control terminal device 43 have the structure as shown in FIG. 5 (the monitoring terminal device 42 is shown in the figure). That is, the signal processing unit 2 including a dedicated integrated circuit with a built-in microprocessor
1 and the switches S ₁ to S ₁ connected to the signal processing unit 21.
A function of delaying the loads L _{1 to} L ₃ by delaying on or off by operating S ₃ 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 can be rewritten through 1. The power supply of the monitoring terminal device 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 , in order to obtain the power supply from the transmission signal. The power supply circuit 23 is provided. Transmission signal is transistor Q ₁
The return signal is input via the transistor Q ₂ and the resistor R ₂ and is sent to the signal line Ls as a current mode signal. Further, a crystal oscillator X that determines the clock cycle of the signal processing unit 21, a reset circuit 24 that resets the signal processing unit 21 when the power is turned on, and a display lamp LD _{11 including} a light emitting diode that displays the operating states of the loads L _{1 to} L _3.
~ LD _{32 and the} like are connected to the signal processing unit 21. Display lamp LD ₁₁ to Ld ₃₂ is on and off and a to display each of the load L ₁ ~L _3, and two each provided for each of the load L ₁ ~L _3.

The contents of the storage unit 22 are set by a wireless signal by infrared rays from a setting device 44 (see FIG. 3) provided outside. The setter 44 is configured so as to be able to set, confirm, and correct the function data and address data stored in the storage unit 22, and the signal processing unit 21 corresponds to it by transmitting a wireless signal in each mode. It is supposed to process. In order to send and receive 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 projecting element L such as a light emitting diode. To be done. When the wireless signal is normally received, the wireless transmission unit 26 sends a wireless signal for confirmation of reception to the setter 44. The light receiving element P and the light projecting element L are arranged adjacent to each other, and the light receiving window 45 formed in the case of the terminal device also as a light projecting window 45.
A wireless signal is transmitted and received through (see FIG. 6).

The setting device 44 includes a large number of switches (not shown).
As shown in FIG. 6, a handle 33, which serves as an operating portion of each switch, is provided on the upper surface of the setter main body 30. A window portion 36 for transmitting an infrared wireless signal is formed on the front end face of the setting machine main body 30. When using the setting device 44, the monitoring terminal device 42 and the control terminal device 4 are used.
The window portion 36 is used in close proximity to the light receiving window 45 provided in the case 3 of FIG.

[0010]

By the way, since this kind of setting device 44 is used close to the monitoring terminal device 42 and the control terminal device 43, the wireless signal is very weak. If the light receiving window 45 of the monitoring terminal 42 or the control terminal 43 and the position of the window 36 of the setting device 44 do not exactly coincide with each other, the wireless signal cannot be transmitted / received reliably. is there. However, in the above configuration, since the wireless signal is infrared light, it is not possible to visually check in which direction the wireless signal is being sent, and the monitoring terminal 42, the control terminal 43, and the setting device 4 are not provided.
There is a problem that alignment with 4 is difficult.

An object of the present invention is to solve the above-mentioned problems and to provide a remote monitoring control system which facilitates the position adjustment so that a wireless signal can be reliably transmitted and received between a terminal device and a setting device. It is intended to provide a setter for terminal functions.

[0012]

According to the present invention, in order to achieve the above object, an operation section is operated for a terminal unit connected to a main control unit through a signal line in a time division multiple connection system. In the terminal function setting device of the remote monitoring and control system, the function data for setting the function of the terminal device and the address data for setting the address of the terminal device are written to the storage unit provided in the terminal device by transmitting the corresponding wireless signal. A light projecting unit and a light receiving unit for transmitting and receiving the wireless signal as visible light are provided.

[0013]

In the structure of the present invention, the visible light projecting means and the light receiving means are provided so that the visible light wireless signal can be transmitted and received between the terminal device and the setting device. By sending, the position where the wireless signal is sent to the terminal can be made brighter or colored, and the sending position of the wireless signal can be visually confirmed. That is, it becomes easy to align the positions so that wireless signals can be reliably transmitted and received.

[0014]

EXAMPLE The basic construction of this embodiment is the same as the conventional construction, and therefore the differences will be mainly described. As shown in FIG. 2, the setter 44 includes a light projecting element 16 formed of a light emitting diode for transmitting a wireless signal to the terminal device, and a light receiving element 17 formed of a photodiode for receiving a wireless signal from the terminal device. The light projecting element 16 and the light receiving element 17 transmit and receive visible light, and are connected to the control unit 10 including a dedicated integrated circuit equipped with a microprocessor via an optical transmission / reception circuit 13. The display 12 which is a liquid crystal display provides a display corresponding to the output from the control unit 10 through the display drive circuit 15. The display unit 12 is provided with both a segment type display unit and a matrix type display unit, and between the display unit drive circuit 15 and the segment line Ds for the segment type display unit and the common for the matrix type display unit. It is connected via the line Dc. The display drive circuit 15 is connected to the control unit 10 via the address bus Ba and the data bus Bd, and the display drive circuit 15 is responsive to a signal input from the control unit 10 to the display drive circuit 15. 12 is displayed. A switch group serving as an operation unit forms a key matrix 11 and is connected to the control unit 10. Further, a sounding circuit 18 for driving the piezoelectric buzzer is provided so as to perform notification such as transmission confirmation. The control unit 10 is reset by the reset circuit 19 when the power is turned on.

As shown in FIG. 1, the above-mentioned circuit section and the like are as follows.
It is mounted on the printed circuit boards 32a and 32b and is housed in the setting unit main body 30. The setter body 30 is formed by joining a body 31a and a cover 31b, which are molded products of synthetic resin, and uses a battery as a power source.
A battery cover 31c is detachably attached to the body 31a. The light projecting element 1 is provided on the outer surface of the setter main body 30.
As shown in FIG. 1, a window 36 formed in the shape of a protrusion is made of a translucent material so as to allow visible light to pass therethrough at a portion facing 6 and the light receiving element 17. The front end surface of the window portion 36 is formed flat.

A plurality of switches forming the key matrix 11 are mounted on one printed circuit board 32b. The handle 33 for operating each switch is a sheet-like operation sheet 3 formed of rubber such as silicon rubber.
4 is formed as a convex portion on the surface, and when a pressing force is applied to the handle 33 that is the convex portion, the key trix 11
Each switch can be operated. That is, a so-called rubber switch is configured. Further, a back light 35 made of a light emitting diode is provided on the back side of the display device 12, and by turning on the back light 35, the contents displayed on the display device 12 can be easily viewed.

By the way, in the setter 44, the battery voltage is stabilized and supplied to each circuit, and a capacitor C having a relatively large capacity is connected to the output of the power supply circuit for stabilizing. The capacitor C is provided to compensate for the lack of output capacity of the power supply circuit when transmitting and receiving wireless signals. Therefore, the battery capacity and the capacity of the power supply circuit can be reduced, which leads to downsizing of the setting device 44.

[0018]

As described above, the present invention is provided with the visible light projecting means and the light receiving means so that the visible light wireless signal can be transmitted and received between the terminal and the setting device.
If the wireless signal is sent to the terminal, the position where the wireless signal is sent to the terminal can be brightened or colored, and the position of the wireless signal can be visually confirmed. Has the effect. That is, there is an advantage that it is easy to align the positions so that wireless signals can be reliably transmitted and received.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an example.

FIG. 2 is a block circuit diagram showing an embodiment.

FIG. 3 is a schematic configuration diagram of a remote monitoring control system according to the present invention.

FIG. 4 is an operation explanatory diagram of the remote monitoring control system according to the present invention.

FIG. 5 is a circuit diagram of a monitoring terminal used in the remote monitoring control system according to the present invention.

FIG. 6 is a perspective view showing a usage pattern of a conventional example.

[Explanation of symbols]

 16 Light emitting element 17 Light receiving element 22 Storage unit 30 Setting device body 33 Handle 36 Window part 41 Main control device 42 Monitoring terminal device 43 Control terminal device 44 Setting device 45 Light receiving window Ls signal line

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Office reference number FI technical display location H04B 10/22

Claims (1)

[Claims] 1. A function of a terminal device is set by transmitting a wireless signal corresponding to an operation in an operation unit to a terminal device connected to a main control device by a time division multiple connection method through a signal line. In the setting device of the terminal function of the remote monitoring and control system, which writes the address data for setting the function data and the address of the terminal device to the storage unit provided in the terminal device,
A terminal function setting device of a remote monitoring and control system, comprising a light projecting means and a light receiving means for transmitting and receiving the wireless signal as visible light.