JPS5914331A - Power line corrier relay controller - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention utilizes a power line carrier control device that superimposes a carrier wave on a power line and controls and monitors the receiver side.
The present invention relates to a power line carrier relay control device configured to control a remote control relay both manually and remotely.

In general, a power line transport system uses an ordinary power line +1+ as a signal line to perform remote control and monitoring, and a model diagram of a conventional system is shown in FIG. In Fig. 1, the power line (1) is connected to the transmitter (2,) and the receiver (8188□), and both receivers (8+88g) are connected to the power line (1).
A load (9□) (ot) is connected to. Now, for example, when a signal is transmitted from the communication device (21), the receiver (8
,) receives this and operates the relay contacts etc. to load the load (9).
, ) on/off control. That is, in this example, the transmitter (2
,) to the receiver (81), and the transmitter (2□) to the receiver (81).
, ), respectively. Considering the case where a plurality of sets of transceivers (21), (81), etc. are present in this way, an address code is generally given to each transceiver (21), (8,), etc. An example of a signal format using this is shown in FIG. The 4 address codes in the center of FIG. 2 correspond to this, and in this case, 16 sets can exist at the same time. Also, the first pit S in the figure is a start mark, and this is the transmitter/receiver (2□)...(81)...
The four pits of the t-code indicate the content of the signal to be controlled. For example, if it is on, oo
oo, if off, Oo.

1. When dimming, set it to 1000. Furthermore, the last four hits of the control code are used to transmit additional information, such as the dimming level when dimming. Figure 8 (a) shows an example of the content (structure) of this one hit, where the transmission signal is sent in synchronization with the same wave number of the power supply # (1), and is sent at a half wave of the power supply waveform. One pit of information is transmitted during this period, and a zero-cross pulse as shown in FIG. 8(b) is extracted from the power supply waveform and used as a synchronizing signal. Figure 8(a) shows the waveform of the power line (1) on which the transmission signal is actually carried.The AC waveform of the power supply (-0 is superimposed with the carrier signal (υ). Then, we divided the half-wave interval into four parts, and when the four data are ', 0101, the start mark is displayed, when 0100, the data ``0'', and when 0111, the data ``1'' is displayed to improve reliability. This is a 1-pit signal format.

Figure 4 shows the input and output in normal use, and the transmitter (2) includes an oscillator (IO) and an off switch (
An input switch, a power switch, a power switch, etc. is connected as a push switch type switch, and the receiver (
3) Turn relay 02) on/off or change the position of the triac trigger pulse for dimming. Further, in the circuit shown in FIG. 4, a two-winding latching type relay is used as the relay (12). Figure 5 shows the timing of the tie signal during operation of the circuit of Figure 4. When the series of transmission signals shown in Figure 4 (a) is completed, the receiver (3
) outputs the SCH trigger signal for the relay (12) as shown in FIG. Figure (d) shows the transmission end signal (hereinafter referred to as AC
(referred to as the K signal).

FIG. 6 shows a block diagram of the main circuits of the transceivers +21 to +31, and these transceivers +2+ +3
The transmitter/receiver section 1 is made of a microcomputer, LSI, etc., and the transmitter (2) monitors the signal on the power, ii Fl),
Since it uses a method of transmitting only when there is no signal, it has a transmitting and receiving function, so the transmitter/receiver (21 + 31) has a common circuit configuration.The functions of each part will be briefly explained below.In the circuit shown in Figure 6 , a modulation/demodulation section (hereinafter referred to as a modem) θ converts the carrier signal on the power line (1) into a 0th level signal, modulates the transmission data carrier wave, and superimposes it on the power line (+1). The CK generating section (14) detects the zero cross of the power supply waveform and generates an O-clock pulse as required in each section based on the generated zero cross pulse. The received signal verification unit 051 converts the received modulated signal into data J II
, 1101+, start mark, etc.

The reception shift register (16) is the reception shift register (15)
Converts the 110 data from 1 to parallel data and decomposes it into mode code, address code, and control code.

The address verification section θno verifies whether the address code of the received number 4 matches its own address. The t-code verification section (+8) verifies what the 7-d code of the received No. 4 is. Relay Drive Trial Arractrica Department (19
) outputs a drive pulse for the relay (!2) to the relay drive output according to the content of the mode code, and outputs a tri-force pulse for phase control to the triac trigger output for dimming according to the control code. The dimming data reproducing section reads the contents of the control code when receiving the dimming upper code and determines the position of the triac trigger pulse. Next, the human power unit (21) receives human power such as on/off operations, and inputs transmission data such as address data and dimming data, and converts it into a logic signal. The transmission data creation section (22) creates parallel data to be transmitted based on the data input from the human power section (21) and the transmission/reception setting status. A start pulse generator (23) generates a start pulse to start the transmission operation when there is enough human power. The transmission shift register (24) converts parallel data for transmission into serial data, and the transmission number creation unit 25) outputs the serial data from the transmission shift register (24) one pit at a time to the final modem 03. ), and also creates an input signal to the AC at the end of transmission No. 4.
It is designed to output the K signal. Error detection section (26
) will stop sending/receiving operations if it receives an incorrect t-do Ω code or a code from an address other than its own, or if the transmitting number 4 and the receiving number 4 that received this transmitted number 4 are different during transmission. It performs the operation of waiting in the original state,
The power line (1) when trying to transmit
), if there is already a signal or noise, it temporarily waits for signal transmission, and after a certain period of time outputs a signal to start transmission again. The transmitting/receiving tie control unit (28) controls the transmitting/receiving tie and operates each part according to the RDC signal.Furthermore, if the above-mentioned error signal occurs, the transmission is stopped and the transmission is waited for a certain period of time. Perform an action to retransmit it later. Thus, the power line 9 carrier control device comprising the transmitter/receiver with the above configuration has the following functions. That is, according to the mode code, the receiver (3) transmits the relay (
12) can be turned on and off, and the receiver (2) can be dimmed according to the signal (control code) from the transmitter (2). Furthermore, if an error occurs during transmission, the receiver (2) can be turned on and off. This will control retransmission. Also, the signal is transmitted only when no other signals are on the power line (fl), which is a signal transmission line. Figure 7 is the 6th
This is a block diagram of a circuit in which a 4-hit bidirectional transmission function is added to the circuit shown in the figure. The difference between this circuit in Figure 7 and the circuit in Figure 6 is that control data is input to the transmitting section, and human data output section 29).
]]
This means that the output of the °C temperature test section H is input to the human data output section 29). In addition, (30) in the figure is 7-
(21) is a data input section.

In addition, FIG.
b) shows examples of circuits near the control data and t-code data input sections of the transmitting section. First, the 8th
The circuit shown in the figure will be explained. The transmission signal becomes the 110 signal and is input to the receiving shift register (16) in FIG. 8(a) in synchronization with the zero-cross signal of the power supply.

Therefore, when the reception of the signal is finished, all of the receivers No. 4 are lined up in the receiver shift register (16('s Q+), control code s in Q4, address code in Q5 to Q8, Q ,~Q1!
Seventh chords are lined up in each row. Here, the address code is verified by the address verification section 07) to see if it matches the address of the user. The control code is input and latched to the control data output section (29) consisting of 4 bits. However, the CK of this latch is the data bit pulse outputted from the transmitter/receiver tie 3 control section (29). Acid is taken between the output of the seventh code verification section (18) and the seventh code.Here, the data latch pulse is output after the completion of signal reception and is Q1 to Q4.
Occurs after the Control 0-Code is lined up. In addition, when the putter latch 7-domain changeover switch (31) is set to the upper side, when "0OOX" (X can be anything, starting from 08.), the control data output section (29) will be latched. When the changeover switch (311) is turned down in the figure, it is latched at 7-key "0100".Next is the transmitter shown in FIG. Address: 0-12
After inputting the pit parallel data, it is converted into serial data and sent out in synchronization with the zero clock.

2 from the top of mode data input terminals P, ~P1□
"o o o x"
It is possible to switch to "n" and "0IOX" and transmit.

In this way, the transmitter/receiver (21+31) with these circuits added is connected to the power line (1) which is the signal line as shown in Fig. 9.Here, (2) is the transmitter, (3) is the receiver, and ( 9
1) to (94) are loads to be controlled. However, in the system rri4 control 4 monitoring system shown in FIG.
A control signal, that is, a control signal, is sent from the transmitter (2), which is received by the receiver (3), and is sent to the load (9).
0 to (04) are controlled. - The power receiver (3) side monitors the states of the loads (91) to (94) using a sensor, etc., and sends it back to the transmitter (2) as a monitoring signal.
) will output and display this monitoring status.

Here, when the transmitter (2) side transmits a control signal, tde-
The controller code is set to ``o o o o'' and the control content is placed on the control code and transmitted. Also, on the receiver (3) side, when the 7 code is ``ooox'', the control code is latched. When set as follows, the control signal appears in the four-hit output of the control data of the receiver (3), and controls the loads (9,) to (9,). Furthermore, a monitoring signal from the monitoring performed by the receiver (3) is manually inputted from the monitoring input of the receiver (3). In this case, a mode code of 1.0100'' is used to place a supervisory signal on the top of the line, and the address code is the same as that used when transmitting from the transmitter (2) to the receiver (3). Transmitter (2)
If the receiving part of is set so that it is latched as the nt D-router output when the t-code is "010X", a monitoring signal will be output to the transmitter (2).Here, , even if the transmitter (2) transmits, the receiving section of the transmitter (2) does not latch the mode ゝゝ0oox'']-/to-roputer part, so the transmitter (2) always receives the monitoring signal. is output, and similarly, the receiver (:1) is always]
Only seat data is output.

Since the circuits shown in FIGS. 7 to 9 are configured as described above, multiple loads (91092)
In addition to being able to simultaneously control address control signals and monitoring signals without confusing them, it is also possible to use the same conventional signal format for both control and monitoring. This eliminates the need to damage existing functions or make changes to circuits on the same side, and improves the efficiency of using the line as a whole.

Next, the operation of the circuit shown in FIG. 10 will be explained as a general circuit example of a combination of a remote control relay @3) and a seven-contact switch (34) used in the device of the present invention. That is, the first
In the circuit shown in FIG. 0, a seven-contact relay (33) and a remote control switch are connected in series through a transformer T of an AC power source (not shown). LED is a light-emitting diode that lights up when 3) of the relay is on, and is a light-emitting diode that lights up when it is off.
Rf beam 'e':]:/This is a thyristor for driving sushi. Now, as shown in Figure 9 (a)? , Irishi-(3
3) is in the off state, the load (9) is in the off state, and a current as shown by the arrow in the figure flows through the light emitting diode ED for indicating the off of the remote control switch (34).

At this point, when the switch (G) is pressed, the contact changes from the contact point to ■, and the charge stored in the capacitor C is discharged from the light emitting diode LED2 through the thyristor SCR. This discharge current causes the thyristor SCR.

conducts, the current flows through the thyristor SCR, the remote control relay (33) operates in reverse, and the main contact (8
At the same time as 8a) closes, the auxiliary contact (!33b) switches, and when the auxiliary contact (38b) reverses, current flows as shown by the arrow in figure (b), and the light emitting diode LED for ON indication lights up. do. In addition, when switch 4 is pressed in this state, the electric charge stored in the Zantha C is discharged through the light emitting diode LED. As a result, thyristor 5CR2 is truncated, and this thyristor SC
The thyristor SCR becomes conductive.

K current flows, and the Rinachi Koshi relay (33) is reversed. As a result of the above operation, the Nichikon relay (33) repeatedly turns on and off.

Conventionally, when operating the power line relay (33) with the function of transmitting four pieces of control data of the power line 1 general transmission control device as described above, this was realized by a circuit shown in FIG.

The LSI is an LSI version of the main optical circuit part of the circuit shown in FIG. Input the monitoring input to the change detection circuit f36) K,
When a change occurs in any one of the signals, it is input to the OR terminal, and at the same time when the signal is input to this OR terminal, if the power line (1) is not the same, the power line (1) is send a signal to. Next, PT, ~PTs are photothyristors, and when current flows through the photothyristors PT1~PT, the corresponding resistors P1゛1~
PT- is turned on. Also PC+”
PC4 is a photocoupler, and photocoupler PC, ~P
When current flows through C, the corresponding transistor P
C1 to PC1 are turned on. Also, the connection points X,,X, are the first
They are connected to the connection points X, ,
η is connected in parallel, and the remote control relay (33+ turns on,
The off operation can be performed in two ways: from the switch circuit quantity and from the remote control switch (341).The embodiment targets four loads from load 1 to load 4 for one LSI, and On the other hand, the temperature control relay (B3) is connected in the same manner as above.

Thus, the conventional example shown in FIG. 11 operates as follows. First, regarding the case of receiving a control signal and controlling the load, if the LSI receives a control signal for controlling the load (θ), the control signal for the 4th time is ``1, 0, 0゜0''. Assuming that, output terminals 0UT1 to 4 have 1, 0, 0, respectively.
,0. Outputs the signal. Here, since the output terminal 0UTI outputs "l", the photothyristor PT becomes conductive, and the thyristor PT turns on, so when it is in the off state, the 7 and 17 relays (331 are in the on state, and in the oscillating state) Then, the ON relay (Oki) remains as it is. Also, since "0" is output from the output terminals 0UT2 to 4, the photothyristors PT, , PT, , PT.

conducts, and the thyristors PT,', PT,', P
Ts' is tri-powered, and each remote control relay (33
) is turned off. Next, the Seven Switches (
The case where the load (9) is controlled in step 34) will be explained.

It is now assumed that the load 1 relay (33) is in the OFF state. When you press the remote control switch (34) connected to the seven-con relay (33), the remote control relay (33)
At the same time as turning on, the switch circuit (three photocouplers PC, conducts) and turns on the transistor pc,', thereby inputting ``1'' to the input terminal IN, and simultaneously sending a 11H'' signal to the OR terminal. Enter and load (9)
The state of is transmitted to the electric power 1jNI+ via the seventh dem α Tsukasa. Furthermore, if you press the seven-con switch (2) again here, the T-con relay (33) turns off, and at the same time the photocoupler PC and its transistor PC,' turn off.
The load state is transmitted to the power line (1) by inputting a signal to the input terminal IN and inputting a signal to the OR terminal. Further, the LSI which has received this signal itself outputs the received four hits to put the photothyristors PT, -PT into a state suitable for its own load state. However, in the conventional example as described above, there is a problem that a malfunction may occur if the controller switch (2) is pressed twice quickly. For example, now load 1 is connected to relay G33)
When the remote control switch fusion is pressed when the is off, ゝゝIL/ is input to the input terminal IN, and the LSI transmits and receives that status, and the output terminal 0LIT 1 to 1V.
1", and conducts the photothyristor PT for turning on the remote control relay (83). However, if you press the remote control switch (341) again at this time, the remote control switch (34J) turns on the remote control relay (33). I try to turn it off, but I try to turn on the photothyristor PT of the switch circuit (37) and the Viconori Seven Koshi Relay (33). (33) id
This causes malfunctions.

The present invention has been provided in view of the above-mentioned points, and it has been made possible to perform control operations accurately at all times without causing malfunctions even by continuous operation of the switch. An object of the present invention is to provide a power line carrier relay control device.

An embodiment of the present invention will be described in detail below with reference to the drawings.

FIG. 12 shows an example circuit #i of the present invention, and in the conventional example circuit of FIG. 11, the ground sides of the photothyristors PT, ~PT, are all connected in common to
, and the output of the acid circuit (38), which inputs the inverted signal of the ACK signal and the differential signal of the tri-force signal, is input to the base of the transistor TR. .

Note that the switch circuit (3η and the transistor PC in the input section)
Since the circuit portions S to PC2 are the same as those in the conventional example shown in FIG. 11, illustration thereof is omitted. That is, this embodiment circuit of FIG. 12 connects the transistors TR, -TR, which are connected in series to the photothyristors PT, -PT, to the collector of the transistor TR.
The base input of the transistor TR is grounded by the base input of the transistor TR, and the base input of the transistor TR is connected to an inverted signal obtained by inverting the transmission end signal (ACK signal) and the rising pulse of the trigger signal for triggering the SCR. This is the one taken. Here, the ACK signal is a signal that outputs ``1'' when δ■ is transmitting a transmission control signal by inputting its own OR end signal, as shown in Fig. 4(d). The ACK signal is output only when the LSI transmits the signal itself.On the other hand, the tri-power signal for the SCR tri-power is constant at the same time as the signal from the transmitter (2) is received and the 4-pit control signal is output. This is a signal that outputs a time of ゝゝ1''.

Thus, in the embodiment circuit of FIG. 12, when the off-state contact relay (to) 3) is turned on by the contact switch 4), ``1'' is input to the input terminal IN, and this also occurs. However, even if the LSI that has received this transmission signal outputs 111" from the output terminal OUT 1, it must immediately operate the photothyristor PT because the ACK signal turns off the citra resistor TR. The switch circuit does not operate until the end of the transmission signal (ACK signal).Also, when a transmission signal is received from another station [transmitter (2)], the above-mentioned trigger signal By using the switch circuit (37), the switch circuit (3 pins) is operated only for a certain period of time after the 4-pit control signal is output, and the switch circuit (37) is operated except when the trigger signal is output.
This makes it inoperable. As mentioned above, in response to the transmission signal of another station, the switch circuit G is operated only when the trigger signal is output. The operation of the switch circuit (37) is disabled and the t-con relay (341)
This prevents malfunction.

- Also, in the above embodiment, when a transmission signal from another station is received, the photothyristor PT of the switch circuit (37) is activated during the period when the signal output is "X1".

~PT, operates. For example, the load is 7 koshi relays.
(The 1'l" signal that turns on 33+ is the output terminal 0tlT.
When the signal is output from 1, the thyristor PT'1 becomes conductive and the relay (33) turns on. On the other hand, if the switch (2) is pressed at this time, the remote control relay (
33) is about to be turned off, but at this time, the switch circuit (37) is in the on state, so as a result, the remote control switch (goods) and the switch circuit G3η are in the on/off state, and the switch circuit (37) is in the on/off state. Fushiri relay (33) malfunctions. Therefore, the above-mentioned rise of the trigger signal is detected by the differentiating circuit (39) to shorten the pulse width of the trigger signal, and the operating time of the trigger signal TR is shown in FIG. 4(d).
This shortens the operating time of the switch circuit (three forces), eliminates the duplication of the switch circuit (341 (!-), and increases the
This eliminates the malfunction of 33).

As described above, the present invention provides an acid output of an inverted signal of a transmission end signal (ACK signal) that confirms that the signal transmission in the receiver has ended, and a trigger signal that is generated when the own station's control signal is received. Since the operation of the switch circuit is controlled by the switch, even if the switch is operated repeatedly, the V:]n relay will not malfunction and will always maintain accurate operation. This has the effect of providing controlled operation.

[Brief explanation of the drawing]

Figure 1 is a block diagram of a general power line carrier control device, Figure 2 is a configuration diagram of the same transmission signal as above, Figure 8 (a) (b)
is an explanatory diagram of the transmission waveform as above, Fig. 4 is an explanatory diagram of the control operation from the transmitter to the receiver as above, Figs. A block diagram of a conventional transmitter/receiver circuit used in a power line carrier control device, FIG. 7 is a block diagram of another conventional transmitter/receiver circuit, and FIGS. An example circuit diagram of the transmitter,
Fig. 9 is a 9099 diagram showing a configuration example of a power line carrier control device having a monitoring input return function, Figs. Fig. 11 is a circuit diagram of the main part of the conventional example, Fig. 12
The figure is a circuit diagram of one embodiment of the present invention, in which (1) is a power line;
+2) (2+) (2g)... is the transmitter, (:n (
81082) ... is the receiver, +91 (91X92)
... is the load, (the exposure is the remote control relay, (the gap is the switch, [F] is the switch circuit. Agent Patent Attorney Ishi 1) Long 7 Figure 9 Figure 10 (0) (b) 450 Figure 11 Figure 12

Claims (2)

[Claims] (1) A transmitter and a receiver are connected to a power line, and a control signal for controlling the load on the receiver side is sent to the power line as a carrier wave signal superimposed on the power line, and the receiver side A power line carrier control device is formed that receives this signal, controls the load, and returns the monitoring input from the receiver side to the transmitter side as a carrier wave signal, and manually turns on and off the remote control relay for load control. In parallel with the remote control switch, a switch circuit for remote operation is provided which is activated by the control output of the receiver and has the same function as the above-mentioned remote control switch, and is controlled by this switch circuit or the above-mentioned seven-con switch. This is a power line carrier relay that uses the output that detects the operating state of the Sarari Shichikoshi relay as a monitoring input, and sends changes in this monitoring input back to the transmitter side, and also corrects the operating state of the switch circuit according to the content of this returned signal. In the control device, the operation of the above-mentioned switch circuit is controlled by an AND output of an inverted signal of the transmission end signal that confirms that the signal transmission in the receiver has been completed, and a tri-force signal that is generated when the control signal of the own station is received. A power line conveyance relay control device characterized in that it is configured to control. (2) The power line conveyance control device according to claim 1, wherein the power line conveyance control device is configured to detect the rising edge of the trigger signal and input a short pulse signal to the acid gate.