JPS6240933B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement of a receiver in an indoor power line carrier load control system.

Receivers in conventional indoor power line carrier load control systems are of the type that are plugged into existing recessed outlets as outlet adapters, so they easily fall off by pulling the plug on the load side, and do not protrude from the wall. It was therefore unsightly.
In addition, in the case of an embedded type device with a fixed receiver cord, there were problems in use because the number and type of loads varied depending on the user.

The present invention has been made in view of the above, and its purpose is to enable load control by easily setting receiver codes depending on the number of loads in each household or the number of receivers used, and to An object of the present invention is to provide an embedded receiver in an indoor power line carrier load control system that can prevent the code from being changed by mischief. The present invention will be explained in detail below with reference to Examples.

In FIG. 1, reference numeral 1 denotes a container made of an insulating material, which is formed by a body 2 and a lid 3, and has an electric wire insertion hole 6 on the back side connected to a power supply connection means 5 connected to a power line 4, which will be described later. On the surface are an outlet 9 into which a plug 8 connected to a load 7 is inserted as shown in FIG. 2, and a receiver cord setting device 10,1.
0' is provided. The boss portion 11 provided with the outlet port 9 protrudes upward and is dimensioned to fit into the hole 13 of the large boss-shaped plate 12, and the receiver cord setting device 10, 10' is attached to the boss portion 11. The surfaces 10a and 10a' are formed lower than the boss portion 11 with a step difference. Reference numeral 14 denotes a wiring device mounting frame, to which the device body 1 is attached, and includes a mounting screw hole 14a of the plate 12, a scissor fitting engagement hole 14b, and a mounting screw hole 14 for the switch box.
It is equipped with c. Inside the body 1, as shown in FIG.
6, a switching circuit 18 that drives the output switching means 17 by the received output signal of the receiving circuit 16; and a blade receiver spring 19 connected to the power supply connection means 5 via the output switching means 17;
Built-in 19. The lid body 3 is provided with a hole 20 through which the receiver code setting device 10, 10' passes.

Figure 4 is an electrical circuit diagram, where 21 is a power supply;
A low voltage constant voltage power source for electronic circuits is obtained by passing the DC power obtained by the rectifier circuit 21a and this DC power through the constant voltage circuit 21b. 21c is a voltage dividing resistor connected after the rectifier circuit 21b, and this voltage dividing point 21c' is
Microprocessor 2 via NOT gate 22
Connect to SNS ₀ input of 3. Combined filter 15
connects the power line 4, the receiving circuit 16, and the transmitting circuit 24. The receiving circuit 16 consists of a receiving coil 25, an amplifying transistor 26, and a microprocessor 2.
Connect to input port SNS ₁ of 3. Transmission circuit 24
is a switch element 28 controlled by the oscillator 27 and the output of the output port _C11 of the microprocessor 23.
and a coil 30 coupled to the coupling filter 15 via the amplifier transistor 29. The receiver code setting devices 10, 10' consist of a setting device 10 for indicating a unit code and a setting device 10' for indicating a house code, and provide an H level signal to the output port _C6 by a binary digital switch. When this happens, the part that is closed by this digital switch becomes H level. For example, if you set it to "3", the LLHH signal will be sent to B port (B ₁₀ ~ _{B 13} )
is input. Furthermore, by using the setting device 10' that indicates the house code, the user can set the code for his or her own house. Output port C ₉ outputs a latch output, output port C ₁₀ outputs a pulse output, and the output switching means 17 is turned on and off by the switching circuit 18 controlled by the outputs of these output ports C ₉ and C ₁₀ . . A leakage current generating circuit 33 consisting of a series circuit of a resistor 31 and a neon lamp 32 is connected in parallel with the output switching means 17,
From the connection point between this resistor 31 and the neon lamp 32,
It is connected via a waveform shaping circuit 34 and a capacitor 35 to the base of a transistor 36 connected between the output port _C5 and the input port _B11 .

Now, a signal of, for example, 120 KHz is transmitted from a transmitter (not shown) via the power line 4, superimposed on the commercial frequency as shown in FIG. 5a. First, a start pulse SP is sent with a waveform as shown in Figure 5a, followed by a signal indicating the house code in 4 bits.
HC is transmitted, followed by a signal UC indicating a unit code, and then a control signal SC. These signals pass through a coupling filter 15 to take in only the 120 KHz control signal component, are amplified by a receiving circuit 16, and enter the input port SNS ₁ of the microprocessor 23 as a signal as shown in FIG. 5b. The microprocessor 23 scans the output ports C ₆ and C ₇ to determine whether they match the house code and unit code set by the receiver code setting devices 10 and 10', and if they match, control is started. It compares the signal SC with the command signal of the memory circuit, identifies an on command or an off command, and outputs an output signal to output ports C ₉ and C ₁₀ . This signal activates the switching circuit 18 to activate a relay (not shown), closes the output switching means 17, connects the power supply connecting means 5 and the blade receiving spring 19, and energizes the load 7. At this time, a reply signal SR as shown in FIG. 5 indicating that the output port _C11 has been turned on is sent back via the transmitting circuit 24. In other words, the 120KHz signal of the oscillator 27 is output from the output port.
It is turned on and off by the pulse of _C11 , passed through a coupling filter 15 to the power line 4, and sent back to the transmitter. After that, a 1-bit end signal SE is sent.

Next, construction of the embedded receiver of the present invention will be explained. Since the container 1 is attached to the wiring device mounting frame 14 with the dimensions stipulated by JIS, when the plate 12 is attached to the top surface of the container 1 after being embedded, the surface of the container 1 will be exposed through the hole 13. protrusion, screw 3
7, it can be screwed into the mounting screw hole 14a of the wiring device mounting frame 14. At this time, receiver code setting device 1
0,10' are covered by plate 12 and cannot be tampered with. When changing the setting code of the receiver code setting device 10, 10', the plate 12 can be removed and changed.

As described above, the present invention receives a control signal transmitted from a transmitter via an indoor power line with a receiver,
In a receiver for an indoor power line carrier control system that controls a load connected to this receiver, a boss part that fits into a hole in a plate of a large boss type wiring device is formed on the front of the receiver body, and an outlet to connect the load. A port is provided on the boss portion, and a receiver code setting device for setting the receiver code depending on the number of loads in each household or the number of units used is provided on the front surface of the container body which is stepped from the front surface of the boss portion. Since the receiver code setting device is covered by the plate, by removing the plate, the receiver code setting device installed on the front of the device can be set according to the number of loads in each household or the number of units used. The receiver code can be easily set, which makes it possible to control the load according to the usage conditions.Moreover, when the receiver is installed on the wall, the receiver code setting device is covered with a plate. This has the effect of preventing the receiver code from being changed by tampering or the like.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view of an embodiment of an embedded receiver in an indoor power line carrier load control system according to the present invention;
The figure is a cross-sectional view of the same as above in the installed state, Fig. 3 is a partially cutaway exploded perspective view of the same as above, Fig. 4 is a circuit diagram of same as above, and Fig. 5 a and b are transmission signal waveform diagrams of same as above. . 1 is the device body, 4 is the power line, 7 is the load, 9 is the outlet port, 10, 10' is the receiver code setting device,
11 is a boss portion, 12 is a plate, and 13 is a hole.

Claims (1)

[Claims] 1 In a receiver in an indoor power line carrier control system that receives control signals transmitted from a transmitter via an indoor power line and controls a load connected to this receiver, a large boss type is installed on the front of the device. A boss part is formed that fits into the hole in the plate of the wiring device,
An outlet port for connecting loads is provided in the boss part, and a receiver code setting device for setting the receiver code according to the number of loads in each family or the number of units used is provided with a step from the front of the boss part. 1. An embedded receiver for an indoor power line carrier load control system, characterized in that the receiver code setting device is provided on the front side of the body and the receiver code setting device is covered by the plate.