JPS5941131A - Power line carriage 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 relates to a power line carrier leg device that superimposes a carrier wave on a power line and controls and monitors the receiver side.

The power line transport system uses a general power line il+ as a signal line to perform remote control and monitoring, and a model diagram of the conventional system is shown in FIG. Thus, in Fig. 1, the power line (1) is connected to the transmitter (21) (2□) and the receiver (
3□) (3□) is connected, both receivers (31) (3□)
A load (9□) (9□) is connected to. For example, when a signal is transmitted from the transmitter (2,), the receiver (31)
) receives this, operates relay contacts, etc., and connects the load (9□
) on/off control. That is, in this example, the transmitter (21
) to the receiver (31), and the transmitter (2□) to the receiver (3□
) are controlled respectively. Considering the case where there are multiple sets of transceivers (21)...(31)... in this way, generally each transceiver (2,)...(3□)...
・is given an address code. An example of a signal format using this is shown in FIG. 2, and the four address codes in the center of FIG. 2 are the same, in which case 16 sets can exist simultaneously. Also, the S in the first pit in the figure is a star mark, and this is a transmitter/receiver (2□)...
(3,)...Used to synchronize between 1-1L, 7-
The four people in [C]-D are from a book that shows the content of the signal to turn over, so
For example, if it is on, “(1000”), if it is off, it is “0001”,
When dimming, set it to "1000" d). Finally, the 4 pits of the 7 tor code are used to transmit additional information, such as the dimming indicator when dimming.

Figure 3 (a) shows the contents (structure) of this 1 pit, where the transmission signal is sent in synchronization with the source frequency of the power line (1), and is transmitted at a half-wave of the power supply waveform. One pit of information is transmitted in between, and a zero-cross pulse as shown in FIG. 3(b) is extracted from the power supply waveform and used as the synchronization signal. FIG. 3(a) shows the waveform of the electric force line (1) on which the transmission signal is actually carried, which is a form in which the carrier signal b) is superimposed on the alternating current waveform ω of the power source. In addition, in Fig. 3, the half-wave section is divided into four, and the four data are shown as a start mark at 0101, data "0" at 0100, and data "1" at 0111 to improve reliability. This is a one-pit signal format with a raised pitch.

Figure 4 shows the input and output in normal use, and the transmitter (2) has an off switch (lO) and an off switch (
If IO or up switch or power switch etc.
It is connected as a switch-on type switch, and the relay winding (12 on) or off winding (off winding) of the receiver (3)
Triac T for excitation (120ff) or dimming
I also change the position of the trigger pulse. In addition, the circuit shown in FIG. 4 shows an example in which a two-winding type relay is used as the output relay. Figure 5 shows a tie 3':J chart during operation of the circuit in Figure 4.When the series of transmission signals shown in Figure 4(a) is completed, the receiver (
3) is the SCR tri-1 for relay excitation like () in the same figure.
It outputs the 3 signal and the 1/earc TR trigger signal as shown in the same figure (C).

, 86 shows a block diagram of the main circuits of the transceivers +21 +31, and these transceivers +21 +
The transmitting/receiving section of No. 31 is made of Mikosi, LSI, etc., and since the transmitter (2) monitors the signal on the power line +1j and transmits only when there is no signal, the transmitting/receiving function (because it has (Both 21 and 31 have the same circuit configuration.The functions of each part will be briefly explained below.In the circuit shown in Fig. 6, the modulation/demodulation part is connected to the power line (1).
The above carrier signal is converted to a logic level signal [and the transmitted data 1 general transmission wave is modulated and superimposed on the power @ +11.

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 selection unit (15) classifies the received modulated signal into data //1//, //0115 start mark, etc. The reception shift register (6) converts the I10 data from the reception number verification section (16) into a parallel gator, and decomposes it into seven codes, address codes, and cositroll codes. Address verification section (1'6 is reception 4
Verify whether the address code of the number matches your address. The t-F test section (18)
- Verify what the code is. The relay drive tryaractor section f19) follows the contents of the 7-F code, and the relay drive output has the relay's OFF and OFF windings (
Outputs a drive pulse of 120 ports (12 Off),
Furthermore, a tri-15 pulse for the phase side leg is outputted to the tri-act trigger output for dimming according to the control code. When the dimming data reproducing unit ゛■ receives the dimming t-code, it reads the contents of the Citrol code and outputs the triac trigger.
3 Determine the position of the 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. Transmission data creation department (221 is the human resources department (221)
21) Creates parallel data to be transmitted based on the input data and transmission/reception setting status. A start pulse generator (23) generates a start pulse to start the transmission operation when there is enough human power. Transmission shift register (24
) converts parallel data to serial data for transmission,
The transmission number creation unit (25) is a transmission shift register (24)
It outputs the serial data one by one to create the final input signal to the modulation/demodulation section (13), and outputs a transmission end signal at the end of the fourth transmission signal. The error detection unit 126j performs a transmitting/receiving operation when a code in an incorrect mode or a code at an address other than its own is damaged, or when the transmission number 4 and the reception number that received this transmission number 4 are different during transmission. The device stops and waits in the original state, and the busy detection unit (27) temporarily waits for signal transmission if there is already a signal or noise on the power line +I+ when trying to transmit, and then restarts after a certain period of time. Outputs a signal to start all transmissions. In addition, the transmitter/receiver tie control unit (28) controls the timing of transmitting and receiving, and operates the -C units according to the RDC signal.Furthermore, when the above-mentioned error signal occurs, it stops the transmission. After waiting for a certain period of time, the data is retransmitted. (36) is a power supply section. Thus, the power line transport sterilization device comprising the transmitter/receiver configured as described above has the following functions. That is, the receiver (3) can turn on and off the relay (12) according to the °C code, and the receiver (3) can adjust the light according to the signal (cositrol code) from the transmitter (2). Furthermore, if an error occurs during transmission, retransmission will be disabled from the beginning. Also, the signal is transmitted only when no other signals are on the power line (1), which is the signal transmission line.

FIG. 7 shows a block diagram of a circuit obtained by adding a 4-pit bidirectional transmission function to the circuit shown in FIG. 6. This circuit in Fig. 7 is different from the circuit in Fig. 6 in that the transmission section has control data input, it has a cositroll data output section (29) from which there is a 4-pit parallel output, and 7- to the troll data output section (29)
De-testing club! This means that the output of I8) is present. In the figure, (30) is a seventh data output section, and I21Y is a data input section. Fig. 8 (a) outputs control data 4 pits of the receiving section] y toll data output section 9)
(also in the same figure) shows examples of circuits near the input section of the transmitting section for troll data and mode data. First, the circuit shown in FIG. 8 will be explained.

The input of the reception shift register (16) in FIG. 8(a) is that the transmission signal becomes the I10 signal and the power supply t! It is input at 7 in synchronization with the 0 cross signal. Therefore, when the reception of the signals is finished, all the love signals are lined up in the reception shift register (16). Here, Q1 of the reception shift register (16)
~Q4 K code a address code, Q5 to Q8 are lined up with address code -Q9, and Q12 is lined up with t code, respectively. Here, the address code is input to the address verification unit (1η, the match with the own address is verified.)] The control code is input to the control data output unit consisting of 4 hit latches and latched. However, as the CK of this latch, the transmitter/receiver tie 3:/dicocitrol part (2
Acid is taken between the data latch pulse outputted from 81 and the t-code output from the L-code verification section (18). Here, the data latch pulse is output after the signal reception 7 is completed, and is generated after the control codes are lined up in Q1 to Q. Also, when the data latch t-F changeover switch 31) is set to the upper side, when "0 (JOX" (X can be anything, order from Q□2) 〕〕〕　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　
0IOx" is latched.Next is the transmitter of the transmitter (in the same figure), but here the transmitter shift register (24) Ke-do,
After inputting 12 parallel data 3 from address 0-1, synchronize with zero cross signal (clock) K.

is converted into serial data and sent out. 7-Code Data Input y Of the IM children P, ~P12, the data latch 7-Code switching switch connected to the input of the 2nd bit; You can switch to and transmit.

Thus, by adding these circuits, we created a transceiver (21+31
is connected to the power line (1) which is a signal line as shown in FIG. Here (2) is the transmitter, +3) is the receiver, and (
9□) to (9,) are loads to be controlled. The system shown in Fig. 9 is a 4-control rm + 4-monitor system, in which the transmitter (2) transmits a signal for side-turning, that is, the control signal, and the receiver (3) receives this signal. Then, 1 load (9□) to (94) f', IJIJ is dulled. On the other hand, the receiver side (3) side monitors the status of the loads (9□) to (94) using a sensor, etc., and sends it back to the transmitter (2) as a monitoring signal. This monitoring status will be output and displayed.

Here, when transmitting a control signal from the transmitter (2) side, J(1
0 As shown in Figure (a), change ℃-do]-do to "0000" and 1-
Then, the content of the side hearing is placed on the control code part and transmitted. Also, on the receiver (3) side, the t-do]-do is “(10
(1, □) Control coffin 96).Furthermore, receive +?
, the monitoring signal from the monitoring performed on yt31 is sent to the receiver (2
) is input from the monitoring personnel. This is Figure 11410 (
As shown in b), a supervisory signal is placed on the control code part at the address '10100', and the address code is transmitted from the transmitter 1g 12) to the receiver B (3) using the same address. If the receiving part of the IA transmitter (2) is set to output the output as a latch L7 converter 1゛0-router when the mode code is "010X", the transmitter 121K will be A monitoring signal will be output. Here, even if transmitter (2) transmits, transmitter (2)
The receiving section of is ℃-do"oo.

Since there is no part of the "X" cross section, the transmitter (2) always outputs a monitoring signal, and similarly, the receiver (3) always outputs only the section 1 signal. be done.

Since the circuits in FIGS. 7 to 9 are configured as described above, a plurality of loads (91) (92
), it is possible to transmit control signals and monitoring signals at the same address without confusing them, and it is possible to use the same conventional signal format for both control signals and monitoring signals, Lose the functionality you had,
There is no need to change peripheral circuits, and the overall efficiency of using one line for two lines is improved.

FIG. 11 shows a conventional circuit diagram of a receiver (3) which transmits monitoring data to a transmitter (2) when the monitoring input to the receiver 13) changes by one pit.

FIG. 11 In the conventional example circuit, a signal change detection section (41) that detects whether there is a change in each monitoring input or not.
The outputs of ~(4,) are combined by the OR circuit (6), and when the output of this OR circuit (5) becomes "■(", the set input of the LLS type latch (33) composed of two NOR gates becomes The positive logic output of Sochi (33) becomes //H//, and the ON input terminal (hereinafter referred to as ON terminal) which operates at the rising edge of the receiver circuit becomes "11". Then,
Transmission number 46 begins. After this, a relay drive output is generated from the receiver circuit R, and the latch (33) &:↓ is reset/sorted. Here, the signal change detection section (4□) to (44
) 1, for example, is configured as shown in FIG. 12, and one side of the exclusive OR circuit (34) receives the input signal as it is, and the other side has resistors R□, R2, and C.
In this case, an input signal is inputted through an integrating circuit consisting of the following, and when a change occurs in the input signal 1, an output of "1" is obtained on the output line of the exclusive OR circuit (34). The receiver circuit R in the figure is
It includes all the main circuit parts of the receiver 3), and includes all the circuit parts corresponding to the circuit parts shown in FIGS. 6 and 7 described above.

Thus, in the conventional circuit shown in FIG. 11 as described above, signals are transmitted in response to changes in the supervisory force, but in this case, signals are transmitted in response to changes in the supervisory force that occur temporally apart from each other. In this case, the signal is immediately transmitted in response to a change in each monitoring input, but based on a change in one monitoring input, tL ignores changes in the next monitoring input that occur during signal transmission. Therefore, there is a problem in that changes in the monitoring input are not transmitted to the transmitter (2).

Therefore, a circuit as shown in FIG. 13 has been conventionally provided which allows any change in the monitoring input to be reliably transmitted to the transmitter side without being ignored. The circuit shown in FIG. 13 is configured so that 4-pit monitoring data is input to the data input of the receiver circuit via a monitoring data buffer (6), and this monitoring data buffer (6) A change detection circuit (7) detects each change in the data input of the shift ishi input terminal (hereinafter referred to as 5I4A) as a stroke pulse of the output all monitoring data buffer (6). ). Here, the monitoring data buffer (6) is
It is composed of a so-called FIFO buffer that is configured so that the data that enters first comes out first. In this embodiment, data is transmitted every 4 pits, and internally, data of a maximum of 4 pits x 16 is stored. Note 1. 4.
To latch the input data of the
Input the Stroop Path II/path to the I end, and input the shift error to output 4 pits of data.]・Input end (hereafter S
All you need to do is input a pulse to the data out ready output terminal (hereinafter referred to as 1) or terminal). 】■″ level. In short, F
The IFO bar sofa is composed of a memory of 4 pins x 16 and a shift register, etc., and operates as described above, and in the 131st Ql conventional example, this I! 'If the IFO7S buffer is inserted into the data input section of the receiver circuit 1 (1) as the monitoring data buffer (16), and the monitoring input is input to the data input DO-] of the monitoring data buffer (6), then The data output (20 to Q3) of this monitoring device 1 software (6) is manually input to the data input of the receiver circuit.Furthermore, each pit of the monitoring input has a signal output (4□) to ( 4,) are connected, and these are the outputs of the 4 outputs (41) to (4) are combined by the OR circuit (5), and the small force is integrated by the integrator circuit (8) j1, and this integrator circuit (8) After shaping the waveform of the output in the Schmitt circuit 31), it is differentiated by a differentiating circuit (ri), this differential output is inverted by an isciverter (35), and the output is shifted into the monitoring data buffer (6). (hereinafter referred to as S I 9), and when any one of the monitoring inputs changes, the monitoring input data at that time is latched. Also, the data in the monitoring data bar (6) Out-ready output terminal (hereinafter 1)
] Input the output of the receiver circuit (referred to as the 0 end) to the ON end of the receiver circuit, and also input the output of the receiver circuit to the 5Fyi! The output is input to the shift-out input terminal (hereinafter referred to as SO terminal) of the monitoring data buffer (6).

Thus, in the circuit shown in FIG. 13, the receiver circuit R receives the 4-hit signal input to the input terminals INI to IN4 by the 3:7 timing of the rising edge of the pulse input to the ON terminal for human power. ]] to the control signal line as a transmission signal to the power line Ill, which is the control signal line, through the modem unit (Kasumi), and outputs the 4-hit data received from the power line 1+1 from OtJ'I' 1 to 0TJT4. In this way, by exchanging the 4-way read information, the load is laid down and the terminal is monitored.Here, the input and output signals of the receiver circuit are transferred to the 14th
As shown in the figure. When a pulse is input to the ON terminal as shown in 1(a), the receiver circuit R starts transmitting a signal as shown in ) in the same figure, and at the same time outputs "l-1lI" from the SF terminal. In this real world, the same signal format is transmitted twice as shown in (1) in the same figure, and the SF end transmits the second transmission signal on the transmission path r, as shown in the figure (C). ) becomes "L".The 4-bit data placed on the hood is read from the 4-pit input as shown in 141st step 10)).
Load this from the iN4 boat and enter it]]
shall be. Uke 1e again? + several circuits Rv, k Ii- and at the same time there is a delay of 1iiJ at the same time J'L -r
Receive and monitor as in lpl lme1(d). Then, output the 4 bit data from the ports 0ge r1 to 0ge I4 7, and at the same timing, SC
“H//* is output from the boat as shown in (e) in the same figure.

Here, FI 1 that constitutes the monitoring data buffer (6)
! I will explain about the 0 buffer (abbreviated as FIFO). First, the time delay of the FIFO buffer is shown in Fig. 15. The FIFO buffer outputs DO to D3.4 pits as a 4-way manual port. port and 1
There is a boat of QO-O3 at 7, and others 81, LX)
There are f(, 80, etc.) In the time cisode of Fig. 15, the input port is D(+, and the output port considers only QO. First, as shown in Fig. 15(a), l)0 is "1".
1", and if a pulse is input to the SI end as shown in the same figure), due to its rise, //■11/ is input, and if the meter is empty at that time, the pulse is immediately input from the QO end as shown in the same figure. ttH" is output as shown in (C), and at the same time DO
"H" is also output from the R end as shown in +uJ (d). Here, when a pulse is input to S Ov4 as shown in (e) in the same figure, the falling V will try to output the next data that has been met, but since the next data has not been input, the output will be delayed. The QO terminal does not change, and only the DOIL terminal becomes "L". Next, the DO terminal becomes "L", and similarly, with the rise of SI4, L" is immediately output from the QO terminal, and H" is output from the 1.DO1? terminal. Here, when the falling edge of the SO terminal is input, DORjTtA becomes "L" as in the previous JilJ case. Next K D(l y+
//H// is input from i4, QO row small output "11
", and before the falling edge of the SOM layer is input, 1) the "L" input of the 0 end and the rising edge of the input II/S of the SI end are input, then Qo > Kyo and 1) 01 It is still the same as FJ'/l-1", but the internal diameter is t.
h // J, " is written 1. Here, if the fall of the SO chant is human power, L) ORν product is 1 moment //
It becomes L //, but since "L" force id is stored inside 2, 1-("[D 01(, the end becomes "H" and Q'
k: M or h (, 1//L // is output. The rising edge of the SO end is manually input. It L.

1. Record the data manually added by 161 ul at the rise of 814. By inputting the rising 1 and rising t of yiM, +111 (defined as 1) is output from QOj-.As you can see up to this point, uoit
, is a port that becomes H" every time data is output.

Next, the circuit of the conventional example shown in Fig. 813 - ω Komei - J
-ru. Now the monitoring inputs from input 1 to human power 4 are ″(,/
/. Here, if 11" is input to the input L, the change detection circuit (7) detects the change L7, and inputs this as a stroke pulse to the S1 terminal. At this time, "11" is input to the input terminal DO. Therefore, when 81.8A rises, the 4-hit signal of “tooo” is output to the PI F.
(Input it into JYoshi naru monitoring data buffer (6) and Q
At the same time as "1000" is output from the O to Q4 terminals, the DO terminal becomes 'lH〃, and the ON terminal of the receiver circuit begins to transmit a transmission signal due to this rising input, and at the same time, SF@ becomes "1". (".Also, since "1000" is input to the 4-pin input ports INI to IN4 of the receiver circuit, if the transmit signal is "1000",
000" is placed. When the transmission ends after sending the same signal twice, the output of the 8F end becomes "L", so the input of the SO end of the monitoring data buffer (6) falls, and the DOR, end The output becomes "L". Up to this point, we have considered the case where input 1 becomes "H", but input 2, input 3, and input 4 become "■4".
, the operation is the same as when input l becomes "H//", except that the 4-pit input is different.
Even when the human power 4 changes from "L" to "L", the change detection circuit (7) can detect each pit signal change, so the receiver circuit can similarly transmit the transmission signal by transmitting it twice. is possible.

By the way, in the above, the monitoring data bar sofa (6)
A set of 4-hit signals is stored in the 4-hit signal.
Although the case where pit signals are output has been described, next we will consider the case where two or more sets of 4-pit signals are stored in the conventional circuit shown in FIG. 13 described above. Now, if the first 4 pit signals are output from the QO to Q3 terminals of the monitoring data buffer (6), and at the same time "H" is output from the converter terminal, then the ON terminal of the receiver circuit R is output from this DO terminal. Since the 4-pit signal output from the QO to Q3 terminals is input to the INI to IN4 terminals of the receiver circuit, it becomes the cositrol code of the transmitted signal, and is connected to the power line 11), which is the side line 45. sent to. Further, when "H" is input to the ON terminal of the receiver circuit, the SF terminal becomes "H", and this SFAM becomes "L" when the second transmission of the transmission signal is completed. On the other hand * SO of current data buffer (6)
Since a falling edge is input to the edge, the moment the SF edge is reversed to "L", the DOR terminal becomes "L" for a moment, but the following four hit signals are stored inside this monitoring data base (6). Because it is, it becomes H“ immediately, and at the same time
The following signal will be output from the end. However, since the ONi input of the receiver circuit cannot detect the rise of the next "H" signal unless there is a certain "L" period, two or more sets of four
In continuous transmission that occurs when pit signals are stored, it is necessary to set the ONN large input to "L" before the second "H" input, and sufficient consideration has not been given to this point. The conventional circuit shown in FIG. 13 has a problem in that these data cannot be properly transferred.

A conventional example shown in FIG. 16 was provided to solve this problem, and the conventional example shown in FIG. 16 will be described below. In the conventional example shown in FIG. 16, the DOR terminal of the monitoring data buffer (6) is connected to the ON terminal of the receiver circuit through the resistor R6, and the SF terminal is connected to the ON terminal through the isciverter node and the reversely connected diode D1. It is configured by connecting the SF end of the candy receiver circuit and the SO end of the monitoring data buffer (6). To explain the operation of the circuit shown in Figure 16, the 8F terminal is initially
Since it is "L", the //H" output of the DOR terminal is inputted as it is to the ON terminal, and the receiver circuit is configured so that, for example, the INI terminal is
Input the first 4-pit signal that becomes 1 and start transmitting time. However, at the same time as the S li end becomes "1", oI
The output of the I inverter (39) becomes "L", and a heavy pressure equivalent to the voltage drop of the diode Di is input to the input of the ON terminal, and is input as "L" to this ON terminal.

After that, when the second transmission of the same signal is completed and the signal transmission for one set of monitoring inputs is completed, the SF terminal becomes '', the Se terminal detects the falling edge, and the next 1] OR terminal ' H
Since "L" is input to the above ON terminal during the period until the output of "H" is generated, "H" of the first SF terminal of ♂d falls, and as a result, DOR,kiM becomes "L" and after that Again based on the second set of data, I) 01 (, When the edge becomes "H", this "H" signal is input to the ON terminal, the ON terminal detects the rise of this "H", and continues. For example, I N 2
becomes 〃1(〃), and it becomes possible to transmit the second 4-hit signal.In addition, in the above example, the first time is 1 (I).
``100σ' power is input to INI~l IN4, and ``110σ' is input to 1~IN4, respectively, and the transmission signal with these signals on the controller is sent out twice each. It turns out.

By the way, in the conventional example described above, the same signal is repeatedly transmitted twice in order to improve the reliability of Shingetsu transmission, and when the second signal transmission is completed, the SF terminal to “l(//) and monitor data buffer (
The next data is read from 6) to the receiver circuit)L. Therefore, even if the monitoring input at a certain terminal is, for example, a type of output and it is necessary to urgently transfer this output to the transmitter (2) side, each set of parallel monitoring inputs is sent out. Since the transmission is performed twice each time, there is a problem that the transmission time becomes long, and there is a problem that it is not possible to quickly respond to changes in input from sensors and the like.

The present invention has been provided in view of the above-mentioned points, and it is an object of the present invention to transmit a signal only once in a case where a change in monitoring input needs to be transferred quickly. Power line transport side (foundation) that has made it possible to
The purpose is to provide a device.

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

Fig. 17 shows a circuit according to an embodiment of the present invention, and Fig. 16 shows a conventional circuit in which the input terminal of the inverter 13η and the Se terminal of the monitoring data buffer (6) are connected to the SF terminal of the receiver circuit ratio. On the other hand, inverter 1 is connected to the receiver circuit ratio S Cl (, oscillator output terminal (hereinafter SCI is also referred to as ON terminal)).
3 input terminals and the Se terminal of the monitoring data buffer (6) are connected, and the S output from the Sen and ON terminals is connected.
The CR only 13 signal is generated at the end of the transmission of the first and second transmission signals, respectively. Figure 18 (a
) to (e) t shows a time chart of the above-mentioned 171Δ embodiment circuit, and as shown in (a) and (1)) of the figure, signals are input to the input terminals INI and IN2 of the receiver circuit ratio, respectively. In the case of I) 01 (a signal as shown in the same figure (C) is generated at the end [7, this is input to the ONy#A of the receiver circuit R as shown in the same figure (d), and this receiver circuit Transmission of the transmission signal is started at R, and in the case of the conventional example described above, signal transmission is performed two or more times when transmitting one set of parallel monitoring inputs, but in this embodiment, When the first signal transmission is completed, the 5CI (output signal is generated at the ON terminal, as shown in (e) in the same figure,
By inputting this to the Se terminal, the next parallel monitoring input data, that is, the data whose IN2 terminal becomes "I(") is output from the monitoring data buffer (6), and each parallel monitoring input data is processed once. It will be sent by sending.

In the present invention, the input terminals of the 13 inverters and the Se terminal of the monitoring data buffer (6) are connected to the SF of the receiver circuit ratio.
It is also possible to provide a switch that can be selectively connected to the SC terminal or the fdscRON terminal, so that this switch can be set to the SC ON terminal side when rapid signal transmission is required.

Since the present invention is configured as described above, when a change in monitoring input occurs and it is necessary to transfer it quickly, the signal transmission is performed only once and multiple sets of parallel monitoring input data can be transmitted. This has the effect that data detected on the terminal side can be quickly transmitted to the base device (transmitter) side.

[Brief explanation of drawings]

Figure 1 is a block diagram of a general power line transmission system 1aII device, Figure 2 is the same transmission (configuration of g + flk Figure 3 (
a) and (b) are explanatory diagrams of the transmission waveforms as above, Fig. 4 is an explanatory diagram of the side-turning operation from the transmitter to the receiver as above, and Fig. 5 (a)
~(C) is the same tie-three chart as above, FIG. 6 is a block diagram of a conventional transmitter-receiver circuit, FIG. 7 is a block diagram of another conventional transmitter-receiver circuit, and FIGS. 8(a) and (b) 9 is a circuit diagram of the same receiving section and transmitting section as above, FIG. 9 is a conventional example of FIG. 7 having a monitoring input return function, FIG. 14(a) to (e) is a time chart of the circuit in FIG. 13, @15 Figures (a) to (e
) is an input/output time chart of the same monitoring data buffer as above, and FIG. 16 is a block diagram of another conventional receiver block 1.
FIG. 17 is a block diagram of an embodiment of the present invention, and FIG. 18 (
a) to (e) are the same time cisades, fi+ is the power line, (2) (2□) (2□)... is the transmitter, (
3) (3□) (3□)... is the receiver, (6) is the monitoring data buffer, R6 is the resistor, (3η is the ishiverter, D
l is a diode and It is a receiver circuit. Agent Patent Attorney Ishi 1) Choshichi

Claims (1)

[Claims] ill A power line carrier control device in which a transmitter and a receiver are connected to a power line, and a carrier signal synchronized with the power waveform is superimposed on the gravitational line to control and monitor the receiver from the transmitter. A change detection circuit detects a change in any of the monitoring inputs of the imaginary number pits and υt, and the output of this change detection circuit is used as a strobe pulse, and each time this strobe pulse occurs, the data of these monitoring inputs are latched.
r? and a monitoring data buffer configured to sequentially output the contents of the memory using the c tJ3 signal, and configured to sequentially read out the monitoring data latched in the monitoring data buffer using an appropriate read signal and transmit the signals. In the power line carrier control device, the data-out-ready output terminal of the monitoring data buffer is connected to the transmission start input terminal of the receiver circuit through a resistor, and the output terminal of the thyristor-on-trigger output terminal of the receiver circuit is connected to the output terminal of the receiver circuit. a thyristor oscillator input terminal via an inverter and a diode of reverse polarity, and the thyristor oscillator trigger output terminal is connected to a shift-out input terminal of a monitoring data buffer. .