JPS60165896A - Remote control terminal device - Google Patents

Abstract

PURPOSE:To secure control of a load and to monitor the condition of a load from a remote distance by providing a current detection means for detecting a current flowing through the load, and controlling a load control means according to this detected result and a reveived signal by a receiving means. CONSTITUTION:A signal supplied from a signal transmission line 11 to a transferring/receiving means 12 is transmitted through an operating means 13 to a load controlling means 17, on the basis of this signal the means 17 controls a load 15. While a current detecting means 16 detects a current flowing through the load and transfers the result to the means 13. The means 13 compares a controlling signal sent from the means 12 with a signal sent from the means 16 and controls the means 17 according to the compared result. Further, the means 13 in forms the detected result of the means 16 to a remote controll master device through the means 12 and the line 11. Based on this, the means 13 always compares the control signal with the conditions of the load 15, and using the compared result as a closed loop which controls the means 17, thereby the load is securely controlled.

Description

DETAILED DESCRIPTION OF THE INVENTION FIELD OF INDUSTRIAL APPLICATION The present invention relates to a remote control terminal device which is attached to each appliance.

A conventional remote control terminal device will be described below with reference to the drawings.

In FIG. 1, a 1t71J control signal from a remote control base unit (not shown) passes through a signal transmission path 1 and is sent to a receiving means 2. The receiving means 2 sends a signal to the control means 3, and the control means 3 controls the load control means 6 which directly controls the load 5 which is a controlled device connected to the power transmission line 4 such as a power line. Ta.

However, in the above configuration, city 1j# is under open roof control with no means of knowing the status of load 5, so there is no way to know how load 5 is operating or whether it is really operating. It had become unverifiable and unreliable.

OBJECTS OF THE INVENTION The present invention has been made in view of the above-mentioned problems and provides a remote control terminal device that allows the state of the load to be understood and reliable control to be performed.

Structure of the Invention In order to achieve the above object, the remote control terminal device of the present invention includes a transmitting/receiving means connected to a wired or wireless signal transmission line, a load control means for controlling a load connected to the power transmission line, and a load control means connected to the power transmission line. a current detection means for detecting the current flowing through the load; a load control means according to the detection result of the receiver No. 4 of the reception means and the current detection hand test; and a current detection means for transmitting and receiving the detection result of the current detection means; The configuration includes arithmetic control means for transmitting signals.

With this configuration, the operating state of the load can be confirmed even from a distance, and reliable control can be performed.

DESCRIPTION OF EMBODIMENTS A remote control terminal device which is an embodiment of the present invention will be described below with reference to the drawings.In FIG. 2, a wired or wireless signal transmission path 11 includes a remote control base unit (not shown). A transmitting/receiving means 12 for transmitting signals to and from the terminal is tangentially connected to the terminal. Further, the transmitting/receiving means 12 is tangentially connected to the calculation control means 13.
is a load control means 17 that controls a load 16 which is a controlled device connected to a power transmission line 14 such as a power line;
Current detection means 1 for detecting the state of current flowing through the
6.

According to the above configuration, from the signal transmission path 11 to the transmitting/receiving means 12
The input signal is passed through the calculation means 13 to the load control means 17.
Based on this signal, the load control means 17 controls the load 1.
Control 6.

On the other hand, the current detection means 16 detects the current flowing through the load and sends it to the calculation control means 13. The calculation control means 13 compares the control signal sent from the transmission/reception means 12 and the signal sent from the current detection means 16, and controls the load control means 17 according to the comparison result. Furthermore, calculation control means 1
3 transmits the detection result of the current detection means 16 to the transmitting/receiving means 12, and the transmitting/receiving means 12 notifies the remote control base unit of the detection result via the signal transmission line 11.

As described above, according to this embodiment, the calculation control means 13 compares the control signal and the state of the load 16 to the load control means 17.
Since the closed loop 1 that controls the load can be reliably controlled, and the status of the load 16 is communicated to the remote control parent (not shown), the status of the load can be monitored.

Next, another embodiment will be described using FIG. Remote control master unit (not shown) and stain force transmission line 21
The control signal injected into the signal transmission path using the capacitor 22. It enters the transistor 23 and the transmitting/receiving means 24.

On the other hand, the operating state of the load 26 connected to the power transmission line 21 is detected by the current detection means 27, and
5 will be informed.

The arithmetic control means 26 compares the control signal from the transmitting/receiving means 24 and the state of the load 26 from the current detecting means 27, and causes the relay 28 to further control the load 26 according to the comparison result, and also controls the state of the load 26. The information is transmitted to the transmitting/receiving means 24. Furthermore, the transmitting/receiving means 24 transmits the load status to a remote remote control unit via the power transmission line 21.

As a result, the load 26 can be controlled reliably in a closed loop 1, and the condition of the load 26 can be monitored even from a distance. Furthermore, power transmission line 2 is used as a signal transmission line.
1 is used, so no signal transmission path is required.

Effects of the Invention As is clear from the description of the embodiments above, the remote control terminal device of the present invention allows for extremely reliable control of the load, and also enables the status of the load to be monitored even from a distance. , its practical value is extremely large.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a conventional remote control device, FIG. 2 is a block diagram of a remote control terminal device that is an embodiment of the present invention, and FIG. 3 is a block diagram of a remote control device that is another embodiment of the present invention. It is. 11... Signal transmission line, 13.25...
Arithmetic control means, 12.24... Transmission/reception means, 1
4.21...Power transmission line, 15.26...
...Load, 16.27...Current detection means, 17
...Load control means, 28...Relay. Name of agent: Patent attorney Toshio Nakao and 1 other person
1 Figure 2 Figure 3 @ 4

Claims (1)

[Claims] (1) A transmitting/receiving means connected to a wired or wireless signal transmission line, a load control means for controlling a load connected to the power transmission line, a current detecting means for detecting the current flowing through the load, and the receiving means and arithmetic control means for controlling a load control means according to the detection result of the current detection means and transmitting the detection result of the current detection means to the transmission/reception means. ? ) The remote control terminal device according to claim 1, wherein the signal transmission path and the power transmission path are the same.