KR820001420B1 - Centralized monitor and control system - Google Patents

Abstract

The centralized monitor & control system includes pairs of link lines which connect, in matrix form, alarm switches, controlled devices, etc., installed at an alarm terminal end. Alarm display devices, starting control switches, etc., are installed at a receiving end in correspondence with the devices at the terminal end. The display devices are adapted to be actuated by the alarm switches or the controlled devices are adapted to be actuated by the control devices. These are operated in response to sequential scanning of the one link lines of the paired link system, thus decreasing the number of the link lines used.

Description

Centralized supervisory control

1 is a circuit diagram showing a first basic embodiment of the present invention.

FIG. 2 is a circuit diagram showing an example of the configuration of the display device in FIG.

3 is a circuit diagram showing a second embodiment of the present invention.

4 is a circuit diagram showing a third embodiment of the present invention.

5 is a circuit diagram showing a fourth embodiment of the present invention.

The present invention provides a centralized monitoring and control apparatus, in particular the receiving side, which allows the receiving side to centrally monitor the state of the boundary terminal, or selectively controls a plurality of controlled devices on the boundary terminal side from the receiving side, or perform them together. The improvement of the said apparatus for reducing the number of heads of the ferry which connects with a boundary terminal side.

In a conventional monitoring and control device such as a fire alarm system, communication between the receiver, an alarm transmitter on the side of the boundary terminal, and various disaster prevention equipment is performed by a plurality of communication lines each having a one-to-one configuration.

Therefore, when performing data processing from a plurality of monitoring points, such as a conbinard or a large building, or selecting and controlling a plurality of control points in one place, for example, a receiver and a plurality of monitoring points and control points are used. The number of interconnecting wires to be connected is so large that the cost of wiring work is inevitably increased.

An object of the present invention is to provide a centralized monitoring and control device capable of centralized monitoring of a plurality of monitoring points or centralized control of a plurality of control points with a small number of ferries.

It is still another object of the present invention to connect a receiving side and a boundary terminal side with a first communication line and a second communication line, and a plurality of such as an alarm switch provided at the terminal side or a starting control switch means provided at the receiving side. A plurality of second devices, such as a display device provided on the first device and a receiving side or a controlled device activation relay means provided on the terminal side, are connected to the first communication line and the second communication line, respectively. The state of the first and second devices in tens of thousands corresponding to the number of the first communication lines and the number of the second contact lines is obtained by making a matrix connection between these communication lines so as to become an overheating signal line. It is to enable centralized supervisory control on the receiving side.

Another object of the present invention is to connect one of the first and second communication lines to one pole of the DC power supply provided on the receiving side, and to sequence each of the other communication lines to the other pole of the DC power supply. Intensive monitoring that can be performed reliably even during simultaneous or independent remote monitoring control operation of multiple matrix-connected first and second devices with one power source by scanning to connect as It is to provide a control device.

It is yet another object of the present invention to connect the other ferry line to be scanned with the first and second devices via a logic circuit to cause the scan to be performed in parallel set of binarized pulse signals, whereby the other The number corresponding to the maximum binary number of the binary pulse signal with respect to one communication line in one electrical connection even if the number of communication lines of the terminal is reduced by only the number of bits of the binary expansion signal. Provided is a centralized monitoring and control device capable of increasing up to (decimal). For example, in the case of three other communication lines, eight pairs of one communication line is carried out by scanning with a 3-bit binary pulse signal. The centralized supervisory control of the first and second devices is achieved.

It is still another object of the present invention to provide a centralized monitoring control apparatus which can easily monitor disconnection of each communication line at a receiving side by providing additional communication lines of one or two lines.

According to one basic aspect of the present invention for achieving each of the above objects, a plurality of first devices are provided on one side of the receiving side or a boundary terminal side, and a plurality of first devices are provided on the other side thereof. The first device and the second device are connected by a plurality of communication lines, and the other of the first or second device is operated correspondingly by the supply of current from a DC power source installed on the receiving side by the operation of one of the first or second devices. In the centralized supervisory control device, the first device and the second device are connected in a matrix to a plurality of first communication lines and a plurality of second connection lines of a plurality of balls, so that one of the first and second devices is connected. To the receiving side, the circuit means for connecting each of the first communication lines to one pole of the DC power supply and each of the second communication lines in the order of the other pole of the DC power supply. A potential of the first communication line by the operation of one of the devices of the first and the second apparatus and a potential change of the second communication line by the scanning of the scanning means The centralized monitoring control device is provided, characterized in that the combination of the first and second devices with the other device can be operated correspondingly.

According to another specific aspect of the present invention, the first device is a plurality of boundary switches installed on the boundary terminal side, the second device is a plurality of indicators installed on the receiving side, and each indicator is a corresponding alarm switch. By operation, it is possible to operate in accordance with the operation of the scanning means.

According to another specific aspect of the present invention, the first means is a plurality of control switch means provided on the receiving side, and the second means is a plurality of controlled relay means provided on the boundary end side, and the circuit means. The second ferry connected to the control switch means operated by the control current switch means for controlling the first ferry is in a state capable of connecting the first ferry to the one pole of the DC power supply when the control switch means connected thereto operates. When one is scanned by the scanning means, the control energizing switch means connected to the operated operated control switch means is operated so that the corresponding controlled relay means can be operated.

According to still another aspect of the present invention, a first supervisory line and a second supervisory ship are placed between the receiving side and the boundary terminal side, which are added to the basic aspect described above, and the first side of the first communication line is installed on the terminal side. When the electric potential of one pole of the DC power supply to each of them is shown, a plurality of disconnection supervision detectors are provided which substantially short-circuit between the first and second supervision lines, and the second supervision on the one-receiving side. Each of the first communication lines following the first scan in which the line is in contact with the other pole of the DC power supply and the scanning means sequentially connects each of the second communication lines to the other pole of the DC power supply during its one scanning period. In order to force a second scan to a potential of one pole of the DC power supply, and furthermore, the second scan as described above whether the first supervisory wire is short-circuited to the second supervisory line. A disconnection monitoring indicator indicating, for each of the first ferry is provided on the receiving side according to scanning.

In each aspect as described above, the scanning means described above is sufficient to connect one set of a plurality of second communication lines to the other pole of the DC power supply in sequence. In contrast, in another aspect of the present invention, the plurality of scanning means A second communication line with only the number of bits of the binary pulse signal giving a binary number corresponding to the relative number of the first device and the second device to be connected to the same line of the second communication line of The other end of each of the opponents of the first device and the second device, each of which is connected to the first communication line, to each output of the logic circuit disposed on the receiving side and the boundary end side, respectively. A matrix connection network is formed between the first device and the second device with a plurality of logical circuits interposed between the two communication lines, and the input of the logic circuit is performed only by the number of bits. The scanning device is constituted by a counter circuit driven by a clock pulse generator to control the binarized pulse signal through a lock line, and each bit of the binarized pulse signal output from the counter circuit is described. The second communication line is provided as a parallel set signal, and the output terminals of the logic circuits of the respective counterparts are brought into the potential of the other pole of the DC power source described above in order.

According to another specific aspect of the present invention, a plurality of indicators and a plurality of control switch means are provided on the receiving side, and a plurality of alarm switches and a plurality of controlled relay means are provided on the boundary terminal side. And an alarm switch are connected in a matrix by a plurality of communication lines and a common contact line, respectively, so that the indicator, the alarm indicator, and the alarm switch correspond to each other, and the control switch means and the controlled switch means are connected to the plurality of control contact lines. Matrix connection is performed by a common communication line, and the control switch means correspond to each of the controlled relay means, and on the receiving side, each of the above-described alarm communication lines is connected to one pole of the DC power supply via a resistor. At the same time, the control switch means connecting each of the above-described control It is connected to one of the poles of the above-described DC power supply via the control energization switch means which becomes a conduction state at the time of an operation, and the receiving side connects each of the above-mentioned common contact wires in order. When the scanning means having the other pole potential is provided, and the common contact line connected to the activated alarm switch is scanned by the scanning means, the indicator connected to the same common communication line is made to operate correspondingly, and at the same time the indicator is operated. When the common contact line connected to the corresponding control switch means is scanned by the scanning means, one of the control communication lines connected to the control current switch means connected to the operated control switch means is connected to one pole of the DC power supply. Controlled connection connected to the control communication line and the common contact line scanned as described above. It means responsive to (應 動) sikilsu is a centralized monitoring control unit is provided itgekkeum.

In the centralized monitoring and control device of this aspect, in order to monitor the disconnection of the communication line, a disconnection monitoring communication line is again provided between the receiving side and the terminal side, and the disconnection monitoring communication line is scanned by the scanning means at the receiving side. During the period, the potential of the other pole of the DC power supply becomes the potential of the other pole of the DC power supply in sequence, and the potential of one pole of the DC power appears on the control communication cable for each of the control communication cable and the alarm communication cable on the boundary terminal side. A plurality of disconnection monitoring detectors are provided for detecting whether or not the corresponding alarm contact line is substantially shorted to the disconnection monitoring communication line. On the receiving side, the disconnection monitoring communication line is again connected to the other pole of the DC power supply by the scanning means. Means for conducting all control energization switch means when the potential of A plurality of disconnection monitoring indicators are provided by connecting a common terminal to a disconnection monitoring communication line and connecting each alarm contact line to the other input terminal, and each disconnection indicator indicates that only one input terminal is a potential of the other pole of the DC power supply. In this case, you can also enable disconnection.

As described above, in the present invention, it is possible to perform centralized monitoring control for a large number of monitoring points and control points while significantly reducing the number of connecting lines laid between the receiving side and the boundary terminal side.

In particular, the greater the number of monitoring or control points, the greater the effect of reducing the number of ferries.

The objects and effects of the present invention described above will be more clearly understood by the description of the drawings of the embodiments described below.

1 and 2, the receiving side is provided with a display device 1 having a plurality of indicators 1a to 1i, a plurality of control switches S ₁ to S ₉ and a control energization switch means. The transistors T ₁ to T ₃ , the scanning means 2, the DC power supply 3a for supervisory control and the driving power supply 3b for the controlled device are disposed, and a plurality of alarm switches are provided on the boundary terminal side. W ₁ ) to (W ₉ ), the plurality of controlled relay means 4a to 4c, (5a) to (5b), (6a) to (6c), and the plurality of controlled devices 7a A plurality of control contact lines (L ₂ ) to (L ₄ ), alarm contact lines (L ₅ ) to (L ₇ ), common communication lines (L ₈ ) to (L ₁₀ ), Power lines L ₁ to L _{11 are} provided for the controller.

In the figure, the indicator, the alarm switch, the control switch, and the controlled relay means are arranged in equal numbers (for example, nine by one), and the controlled relay means (5b), (5c), (5c), (6a) ( 6b) is omitted.

In addition, in the controlled device, only the device 7a operated by the controlled relay means 4a is shown in the drawing, and others are omitted.

The above-mentioned alarm switch is, for example, a manual call switch or an automatic detector for a fire or burglar alarm. In the example of the drawing, nine alarm switches W ₁ to W ₉ have nine indicators 1 a to 1 i. And each of the three alarm communication lines (L ₅ ) to (L ₇ ) and the common communication lines (L ₈ ) to (L ₁₀ ) are connected in a matrix to correspond to each other.

Each of the alarm communication lines is connected to one pole (+ V _B ) of the DC power supply 3a via the resistors R ₉ to R ₁₁ , and each of the common contact lines is connected to the DC power supply by the scanning means 2. It is connected in order to the other pole (ground) of 3a), and it repeats.

The configuration in which the above alarm switch and the indicator are connected in a matrix by an alarm contact line and a common contact line, and the scanning means are arranged on the common contact line provides one centralized monitoring device.

In FIG. 1, the control switch S ₁ to S ₉ and the controlled relaying means 4a to 6c are controlled via the transistors T ₁ to T ₃ together with the present centralized monitoring apparatus. A centralized control device connected in a matrix by (L ₂ ) to (L ₄ ) and the common communication lines (L ₈ ) to (L ₁₀ ) is provided in parallel, so that the DC power supply (3a), the scanning means (2), and the common of both devices The ferry boats L ₈ to L ₁₀ are made in common.

The control switch is, for example, a switch means for operation such as an automatic switch which corresponds to each of a manually operated switch or an indicator and operates in conjunction with the operation of the indicator, and each controlled relay means corresponds to a corresponding control. It operates by the operation of a switch, and activates a corresponding controlled device such as a fire door, a shutter, a smoke exhaust device, a fire extinguishing device, an alarm, and the like. It is also possible to use a contactless or contacted or contact relay device as it is, but it is preferable to use a controlled device 7a by means of a power supply 3b separate from the direct current power source 3a. And the start-up is performed by an operation of a controlled relay means such as a relay that receives electric power from the DC power source 3a, and the power source 3b can be made into an AC power source.

On the receiving side, the transistor T ₁ serving as a control energization switch means has an emitter connected to the positive electrode (+ V _B ) of the DC power supply 3a and a collector connected to the control communication line L ₂ , respectively. The resistor R ₁ is connected between them.

The base of the transistor T ₁ is again connected to each end of the control switch S ₁ (S ₂ ) (S ₃ ) via a resistor R ₄ so that these control switches S ₁ (S ₂ ) (S ₃ ) ) Forms a control switch means Sa corresponding to the control ferry L ₂ .

The base of the transistor T ₁ is a control switch S ₁ (S ₂ ) (S ₃ ) and a diode D ₁ (of the upper contact) through the resistor R ₄ as described above. It is connected to the common contact line L ₈ , L ₉ , and L ₁₀ via three series circuits each consisting of D ₂ ) (D ₃ ).

Like the above configuration for transistor T ₁ , transistors T ₂ and T ₃ also have a resistor R ₃ between each emitter base and each base of T ₁ T ₂ . The control switch means (Sb) consisting of three series circuits of control switches (S ₄ ) to (S ₆ ) and diodes (D ₄ ) to (D ₆ ) via resistors (R ₅ ) and (R ₆ ), respectively. The common contact line L ₈ (L ₉ ) (through control switch means Sc consisting of three series circuits of control switches S ₇ to S ₉ and diodes D ₇ to D ₉ , respectively) L ₁₀ ) are sequentially repeated one by one at predetermined cycles for scanning operations connected to the negative electrode (ground) of the DC power supply 3b.

As shown in detail in FIG. 2, the display device 1 has alarm switches W ₁ to W ₉ on the terminal side and the same number of indicators 1a to 1i as the lamp P of each indicator. By blinking, the alarm switch can be recognized by opening and closing.

에 의하여 제어되는 트랜지스터(To)와 그 트랜지스터(To)의 도통에 의하여 접등되는 램프(P)하고 이루어지는 것으로 한다.In addition, in Fig. 2, the internal configuration circuit is shown only for the display 1a, but the displays 1b to 1i have the same configuration, respectively, and the flip-flop circuit F and its inverted output are shown.

It is assumed that the transistor To is controlled by the lamp P and the lamp P is in contact with the conduction of the transistor To.

The alarm communication lines L ₅ to L ₇ are connected to the display device 1, and are connected to the positive electrode + V _B of the DC power supply 3a via resistors R ₉ to R ₁₁ , respectively.

The alarm contact line L ₅ passes through the diode D ₁₀ in the display device 1 in the reverse direction and is connected to one input terminal D of each flip-flop circuit F of the indicators 1a, 1d, and 1g. You are connected.

Similarly, the alarm communication line L ₆ is connected to the input terminal D of one of the flip-flop circuits F of the indicators 1b, 1e and 1h via the diode D ₁₁ in the reverse direction, and is connected to the alarm communication line. L ₇ is connected to one input terminal D of each flip-flop circuit F of the indicators 1c, 1f and 1i via the diode D ₁₂ in the reverse direction.

On the other hand, the other input terminal T of each flip-flop circuit F in each display device is connected to the common contact line L8 in the display devices 1a, 1b and 1c and is connected to the display devices 1b and 1e. 1f) are both connected to the (La) in the indicator (1g) (1h) (1i ) may doeyeo both connected to (L _10).

은 제2도에 표시기(1a)에 관하여 나타낸것과 동일하게 트랜지스터(To)의 에미터 베이스 회로를 거쳐서 접지되며, 그 트랜지스터(To)의 콜렉터가 램프(P)를 거쳐서 직류전원(3a)의 정극(+V_B)에 접속되여 있다. 더구나(R₈)은 전류제한용의 저항이다.Inverted output terminal of each flip-flop circuit F

Is grounded via the emitter base circuit of the transistor To, similarly to that shown for the indicator 1a in FIG. 2, and the collector of the transistor To passes through the lamp P to the positive electrode of the DC power supply 3a. It is connected to (+ V _B ). In addition, R ₈ is a current limiting resistor.

On the boundary terminal side, each of the _nine alarm circuits (L ₅ ), (L ₅ ), (L ₇ ) consists of _nine switches (W ₁ ) to (W ₉ ) and diodes (D ₁₃ ) to (D ₂₁ ), respectively. It is connected to each common via doeyeo ferry _{(L 8) (L 9)} (L 10) as the matrix.

In addition, each of the control communication lines L ₂ (L ₃ ) and L ₄ also has nine controlled relaying means 4a to 6c (however, in FIG. 1, four of them (5b) (Sc) ( 6a) (6b) through the thinking shown) of the can doeyeo connected in a matrix to each common ferry _{(L 8) (L 9)} (L 10).

Here, the controlled relay means 4a corresponds to the alarm switch W ₁ , where 4b corresponds to (W ₂ ), (4c) to (W ₃ ), and (5a) to (W ₄ ). Similarly, it is assumed that 6c corresponds to (W ₉ ), respectively.

In addition, the controlled devices 7a, which are activated by the operation of the controlled relay means 4a, are connected to both ends of the power supply lines L ₁ and L ₁₁ , so that the other controlled relay means are the same. It is assumed that controlled devices (not shown) that operate in correspondence with each other are connected. In addition, if the controlled device completes its operation only by ordinary energization, such as an electronic relay for fire door doors, it may be connected between the control contact line and the common communication line instead of the controlled relay means. In the above-described embodiment shown in FIGS. 1 and 2, the receiving side and the boundary end side are connected by nine liaison lines except for the power lines L ₁ and L ₁₁ , and each of the nine monitoring points. It is possible to centrally monitor and control the and control points.

The scanning means 2 is periodically grounded by scanning the common contact line L ₈ (L ₉ ) (L ₁₀ ) at regular time intervals, for example, the alarm switch W with the common contact line L ₈ grounded. _{When 1} ) is closed, the potential of the alarm communication line L ₅ becomes the ground potential.

만이 높은 레벨 전위로 된다.Therefore, since the lines L ₅ and L ₈ become the ground potential together, the input terminal D of one of the flip-flop circuits F of the indicator 1a becomes the ground potential via the diode D ₁₀ and the other side. The input terminal T of the terminal becomes the ground potential, and the output of the flip-flop circuit F of the indicator 1a.

Only becomes a high level potential.

As a result, the transistor T ₀ energizes only the indicator 1a, and the lamp P is turned on.

In this case, the flip-flop circuit F is used to store the output state determined by the input state to one of the input terminals D when the other input terminal T is at the ground potential. Even if ₁ ) is opened after the first closed or the common contact (L ₈ ) is separated from the ground afterwards, the alarm switch (W ₁ ) is grounded once and the common contact (L ₈ ) is grounded at the same time. If it loses, it becomes possible to continue lighting of the lamp P of the indicator 1a after that.

In this way, it is possible to recognize that the alarm switch W ₁ is closed by turning on the lamp of the indicator 1a.

Subsequently, when the corresponding control switch S ₁ is manually closed by turning on the lamp of the indicator 1a, the transistor T ₁ becomes conductive and the common contact line L ₈ is operated by the operation of the scanning means 2. When it is grounded, the transistor T ₂ conducts.

Therefore, since the positive electrode (+ V _B ) of the power supply 3a is connected to the control communication line L ₂ , and the communication communication line L ₈ is grounded by the above-described scanning, the PJ relay means 4a The voltage between both ends of the DC power supply 3a is applied so that only the controlled relay means 4a operates.

In this case, the controlled relay means 4a receives electric power only while the common communication line L ₈ is grounded by the scanning means 2, and the controlled relay means 4a does not have a self-holding function. The scan period and the conditions for performing the controlled devices are determined so that the controlled device 7a can complete startup within the ground time interval.

Furthermore, in the above description, the control switch S ₁ is operated manually, but for example, the control switch S ₁ is designed to automatically operate in response to the operation of the transistor To of the display 1a. Also good.

When an alarm switch other than the alarm switch W ₁ is operated, the same operation as the above-described operation is performed to operate an indicator, a control switch, a controlled relay means, and a controlled device corresponding to the operated alarm switch. .

In addition, a hand-held display element made of a plurality of segments of a light emitting diode may be used in place of the limp of the indicator, and the opening and closing of each of the alarm switches connected to the same common communication line may be performed by hand.

3 is a circuit diagram showing the basic configuration of the second embodiment of the present invention, in which the embodiment provides a configuration for reducing the number of common communication lines again. In FIG. 3, the same code | symbol as FIG. 1 and 2 has the same code | symbol, and the code | symbol with (') represents a considerable part.

The display device 1 'has nine indicators 1a' to 1i 'connected in a matrix connection, and each indicator is provided with a no-circuit NO ₁ and the no-circuit circuit as indicated with respect to the indicator 1a'. light emission to emit light by the output (1) of NO ₁₎ diode, and that when receiving the emission loop auto Degas peureo comprising a loop auto de transistor for energizing (PT ₀₎ the program auto Degas Pro wood transistor of peureo (PT ₀₎ Is composed of a lamp P, a relay coil Ry, and a self-holding probe Sy of the relay coil Ry, each of which is operated when is energized. The display device 1 'is also one side of the band circuit NA ₁ , in which both input terminals are connected to two common communication lines L ₈ ′, L ₉ ′ via inverters N ₁ and N _2, respectively. The input terminal of is connected to the common communication line (L ₈ ') via the inverter (N ₃ ), and the other input terminal is directly connected to the NAND circuit (NA ₂ ) and one input terminal directly connected to the common communication line (L ₉ '). The NAND circuit (NA ₂ ) connected to the (L ₈ ') and one input terminal are directly connected to the common contact line (L ₈ '), and the other input terminal is connected to the common contact line (L ₉ ') via the inverter (N ₄ ). And a connected NAND circuit NA ₃ .

In each of the display devices described above, one input terminal of the no circuit NO ₁ of the display devices 1a ', 1b' and 1c 'is connected to the output terminal of the NAND circuit NA ₁ together.

Each Noh circuit (NO ₁₎ the other of the input stage (1a ') (1d') (1g ') in doeyeo connected to the alarm ferry _{(L 5) (1b')} (1e ') (1h') of the (L ₆ ) Is connected to (L ₇ ) at (1c ') (1f') and (1i ').

Also on the terminal side, the NAND circuit NA ₄ corresponding to the NAND circuit NA ₁ is connected to the common communication line L ₈ ′ (L ₉ ′) through an inverter N ₅ (N ₆ ), Similarly, the NAND circuit NA ₅ corresponding to the NAND circuit NA ₂ and the NAND circuit NA ₆ corresponding to the NAND circuit NA ₃ pass through the inverter W ₇ or (N ₈ ), respectively ( Similarly to NA ₂ ) (NA ₃ ), it is connected to the common contact line L ₈ ′ (L ₉ ′).

The output terminal of the NAND circuit NA ₄ is connected to the alarm switch W ₁ (W ₂ ) (W ₃ ) together via the diode D ₁₃ (D ₁₄ ) (D ₁₅ ) and the output terminal of (NA ₅ ). Is connected to the alarm switch (W ₄ ) (W ₅ ) (W ₆ ) together via diode (D ₁₆ ) (D ₁₇ ) (D ₁₈ ), and the output of (NA ₆ ) is diode (D ₁₉ ) (D _{It is} connected to the alarm switch (W ₇ ) (W ₈ ) (W ₉ ) together through ₂₀ (D ₂₁ ).

The scanning means 2 provided on the receiving side is made up of the clock pulse generator 8 and the counter 9. In the example shown, since the common communication line L ₈ ′ (L ₉ ′) is two, the counter 9 is 2 is a binary counter, and two output stage _{(L 8 ') (L 9} ') according doeyeo connected to the _{(L 8 ') (L 9} ') in turn [0] [0] [0] [1] for each , [1] [0], [1] [1] are periodically given as two parallel binarized pulse signals as parallel set signals. Of course, the above-mentioned [0] signal corresponds to the negative potential of the power source 3a, and the [1] signal corresponds to the potential of the positive electrode (+ V _B ).

The signal is generated at the output terminal only when the common interconnection line (L ₈ ′) is set to [0] (L ₉ ′) at [0] with the NAND circuits (NA ₁ ) and (NA ₄ ). The output terminal generates a [1] signal.

Similarly, at each output terminal of (NA ₂ ) and (NA ₅ ), (L ₈ ') generates [0] signal only when [0] (L ₉ ') is set to [1]. As an out-of-state condition, the signal [1] is generated.

Again, each output month between (NA ₃ ) and (NA ₆ ) generates [0] signal only when (L ₈ ') is set to [1] (L ₉ ') at [0]. As the cell state, the signal [1] is generated.

Although not shown in FIG. 3, the counterpart of the NAND circuit which generates the [0] signal at the output side is provided to the receiving side and the terminal side only when (L ₈ ') and (L ₉ ') are set to [1]. Each of them can be expanded to increase the counter and the alarm switch.

In the above circuit arrangement, when the common communication line L ₈ ′ (L ₉ ′) is set to [0] together by the scanning of the scanning means 2 ′, the alarm switch W ₁ is closed. (1a ') only and the positive input terminal of the Noh circuit _{(NO. 1)} and to [0] in accordance Noh circuit _{(NO. 1)} is hayeoseo outputs a 1 signal loop auto de Cap multiple program auto of (PT ₀₎ de The lamp P is turned on while the transistor is turned on, and the relay coil Ry is biased to close the self-holding contact Sy.

The lamp P continues to be lit even if the set state of the common communication lines L ₈ ′ (L ₉ ′) is changed afterwards due to the closing of the contact Sy.

Needless to say, this operation is performed in the same one-to-one relationship with other alarm switches and indicators.

In FIG. 3, a configuration as a monitoring apparatus has been described as an example. However, it can be understood that the same modifications can be made to the control apparatus including the counterpart of the control switch and the controlled relay shown in FIG. There will be.

In addition, in FIG. 3, the rare coil Ry and its contact point are formed by using the photoelectric thyristor in place of the photoelectric transistor as the protopod caper PT ₀ in the display. Sy) becomes unnecessary.

In the embodiment of FIG. 3, since the common communication line L ₈ ′ (L ₉ ′) is scanned by parallel cell with a binary pulse signal, the common communication line for four parts is substantially two common communication lines L ₈ ′ (L). ₉ '), and in general, when the common contact line of the method of FIG. 3 is N, the same effect as the matrix configuration is obtained by using the common connection line of the Z ^y bone in the method of FIG. As the number of waters increases, the effect of reducing it becomes larger.

In addition, when the monitoring device and the control device are configured with the same bar by using a common common line, it is an advantageous effect. For example, when intensive monitoring and control of 64 monitoring points and control points of each third Using the method of Fig., It is configured to scan three common communication lines with three bits of binarized pulse signal by using eight alarm communication lines and control communication lines, and thus only 19 communication lines are satisfied. A total of 129 ferry lines between 64 + 64 = 128 ferry ships and at least one nominal blank line are required, and a total of 24 ferry ships are required even in the manner shown in FIG. In the above-described embodiment of FIG. 1 or FIG. 3, the alarm switches W ₁ to W ₉ are all configured as normally closed contacts, and the indicator is configured to turn on the gram when the alarm switch is individual. Single monitor of alarm communication line and common communication line can be performed on the display device.

In this case, the disconnection of a single communication line gives the same indication as the simultaneous personality of all the alarm switches connected to it, so that it is possible to identify the communication line in which the disconnection has occurred.

In FIG. 4, which shows still another embodiment of the present invention, a disconnection monitoring method is shown in a manner different from that described above, that is, a disconnection monitoring method for each specific counterpart of the alarm contact line and the control contact line.

In FIG. 4, the same reference numerals as those in FIG. 1 and FIG. 2 denote the same parts, and the system of the controlled device shown in FIG. 1 is omitted in FIG.

In FIG. 4, the display device 1 further includes three indicators 1x, 1y and 1z having the same circuit configuration, in addition to the nine indicators 1a to 1i not shown.

Each of the input terminals of each flip-flop circuit in this indicator 1x, 1y, 1z is connected to an alarm contact line L ₅ , L ₆ , L ₇ , respectively. It is connected together at the receiving side to the common communication line L ₁₂ for disconnection monitoring, which is separately provided between the terminal side.

The scanning means 2 performs a periodic operation of grounding the common ferry line L ₈ , L ₉ , L ₁₀ , and L ₁₂ in turn.

On the receiving side, three diodes D ₂₂ , D ₂₃ and D ₂₄ having a common cathode connected to the common communication line L ₁₂ are provided, and the anode of the diode D _{22 is} connected to the resistor R ₄ . To the base of the transistor T ₁ , the anode of (D ₂₃ ) via the resistor R ₅ , to the base of the transistor (T ₂ ), and the anode of (D ₂₄ ) through the resistor (R ₆ ) there was respectively connected to the base of T _3).

On one side of the terminal, between the control diode (L ₂ ) and the common contact (L ₁₂ ) between the diode and the alarm contact (L ₅ ) and the common contact (L ₁₂ ) connected via the resistor (R ₁₂ ) The voltage dividing resistor connected in series between the common contact line (L ₁₂ ) and the common contact line (L ₃ ), which is a prototype counter (PT ₁ ), which is also connected to the proto transistor, which is connected via the forward diode (D ₂₅ ). A transistor connected to an alarm contact line (L ₆ ) with a base connected to the voltage dividing point of R ₁₃ ) (R ₁₄ ), and an emitter connected to the common contact line (L ₁₂ ) via a forward diode (D ₂₆ ). The base is connected to the voltage dividing point of the voltage dividing resistor R ₁₅ (R ₁₆ ) connected in series between (T ₄ ) and the control communication line (L ₄ ) and the common communication line (L ₁₂ ), and the alarm communication line (L ₇ ) The collector is connected and hangs the forward diode (D ₂₇ ) to the common ferry (L ₁₂ ). Transistor T ₅ is connected.

These protocol counters PT ₁ and transistors T ₄ and T ₅ are relative to (L ₂ ) (L ₅ ), (L ₃ ) (L ₆ ), (L ₄ ) (L ₇ ), respectively. It is to constitute a disconnection monitoring detector. In the embodiment of FIG. 4, every time the control communication line and the alarm communication line and the common communication line L ₁₂ are sounded each time the scanning means 2 becomes the common communication line L ₁₂ , the photocoupler PT ₁ is sound. The proto transistor and the transistor T ₄ (T ₅ ) of the () are all conducted.

This causes the base potential of each of the transistors T ₁ to T ₃ to fall through the diode D ₂₂ and D ₂₄ by the scanning means 2, and the transistors T ₁ to T ₂ are conducting. This is because the positive electrode (+ V _B ) of the power supply is connected to the control communication lines L ₂ to L ₄ , and the one common communication line L ₁₂ is also grounded.

Therefore, the alarm contact lines L ₅ to L ₇ are substantially connected to the common contact line L ₁₂ by the conduction of the proto transistor and the transistors T ₄ and T ₅ of the protocal coupler PT ₁ . All of these become the ground potentials, and the lamp is turned on in all of the indicators 1x, 1y, and 1z.

That is, if all of the control communication lines (L ₂ ) to (L ₄ ) the alarm communication lines (L ₅ ) to (L ₇ ) and the common communication line (L ₁₂ ) are sound, the common communication line (L ₁₂ ) is scanned by the scanning means (2). When () is grounded, the lamp lights on all of the indicators (1x) (1y) (1z), and the indicator (1x) (1y) (1z) self-holds until the next scan (L ₁₂ ) is grounded. If it has a function, a healthy lamp of each of the above-mentioned communication lines lights continuously, and if it does not have a self-holding function, the lamp blinks at a scanning cycle.

However, when any one of the above-described communication lines L ₂ to L ₇ and L ₁₂ is disconnected, any one or more or all of the indicators 1x, 1y, and 1z stops the lamp from lighting.

For example, if (L ₂ ) or (L ₅ ) is disconnected, even if (L ₁₂ ) is solid, the proto transistor of the photocoupler (PT ₁ ) is cut off, so (L ₅ ) is brought to ground potential. Since it does not fall, the lamp of the indicator 1x stops lighting, and thus disconnection of (L ₂ ) or (L ₅ ) can be known.

When (L ₁₂ ) is disconnected, all the lamps of the indicators 1x, 1y, and 1z stop lighting.

In the example of FIG. 4, one common communication line (L ₁₂ ) is added to the communication line in the example of FIG. 1. In this way, the control communication line and the alarm installed between the receiving side and the end side with the minimum number of extension lines are added. It is possible to monitor disconnection of all the ferries, and the practical effect in terms of repair is great.

Also in FIG. 4, when scanning is performed in parallel cells of two telephone pulse signals as in the example of FIG. 3, the common communication line L ₈ (L ₉ ) (L ₁₀ ) (L ₁₂ ) is established by the logic circuits such as the NAND circuit. It goes without saying that can be reduced by the amount of bits of the pulse signal described above.

Another embodiment of the present invention is shown in FIG. 5 as an example of combining a separate disconnection monitoring method.

In this embodiment, particularly, the disconnection monitoring of the location of the control communication line is enabled.

In FIG. 5, only the disconnection watch tube of the control communication line is displayed, and for the sake of simplicity, other parts such as the alarm communication line system are omitted.

In FIG. 5, the same code | symbol as FIG. 1 shows the same part, and the dashed code | symbol shows the corresponding part.

The scanning means 2 "ground the common ferry lines L ₈ (L ₉ ) (L ₁₀ ) in turn, as in the scanning means 2 of the example of FIG. 1, and then continue to the lines L ₁₅ and (L _16). ) Is periodically operated with the first scanning unit 2a and the first scanning unit 2a which periodically perform the grounding operation, and the first scanning unit grounds the lines L ₁₅ and L _{16 in order} . In this case, the second scan part 2b connects one input terminal of the no-circuit NO ₂ to the grounded line L ₁₅ or L ₁₆ .

The line L ₁₅ (L ₁₆ ) is for contacting both scanning portions 2a and 2b, and the base L of the transistor T ₁ is connected to the line L ₁₅ by the diode D ₂₈ . ₄ ), and the base of the transistor T ₂ is connected to the line L ₁₆ by a diode D ₂₉ via a resistor R ₅ .

Noh circuit (NO ₂₎ is to control the disconnection monitor display device 10, by its output, that doeyeo the other of the input terminals, the alarm ferry (L ₁₃₎ for a disconnection monitoring laid against the shorter end from the reception-side connection The positive line (+ V _B ) of the power source 3a is connected to the ferry line L ₁₃ via a resistor R ₂₀ .

The disconnection supervisory display device 10 is an indicator 10a or 10b connected to the ground of either the line L ₁₅ or L ₁₆ when the [0] output of the no-circuit NO ₂ is input. ), In the illustrated example, the indicator 10a gives the disconnection indication of the control communication line L ₂ and 10b gives the disconnection indication of the L ₃ .

Another common line L ₁₄ for disconnection monitoring is laid from the receiving side toward the end side, and the common line L ₁₄ is grounded at the receiving side. On the end side, the base is connected to the voltage dividing point of the voltage divider resistor R ₁₇ (R ₁₈ ) connected in series between the control communication line L ₂ and the common communication line L ₁₄ , and the collector is connected to the alarm communication line L ₁₃ . Light emitting diodes and their light emitting diodes, the emitter of which is connected via a resistor R ₁₉ between the transistor T ₆ and the control communication line L ₃ and the common communication line L ₁₄ , respectively, connected to the common communication line L ₁₄ . A photocoupler PT ₂ is formed which is a photo transistor which substantially shorts the alert communication line L ₁₃ and the common communication line L ₁₄ when light is emitted.

These transistors T ₆ and protopod capre PT ₂ constitute the disconnection monitoring detectors of the control communication lines L ₂ and L _3, respectively.

In the embodiment of FIG. 5, when the control communication line L ₂ (L ₃ ) is sound, for example, when the line L ₁₅ is scanned to a ground potential, the transistor T ₁ conducts and the control communication line L ₂ is conducted. And current flows through the resistor R ₁₇ to the base of the transistor T ₆ , thereby causing the transistor T ₆ to conduct, thereby causing the collector, that is, the alarm contact line L ₁₃ , to fall to ground potential.

Because of this, since both input terminals of the no-circuit NO ₂ become the ground potential, that is, the [0] signal level, the output of the no-circuit NO ₂ becomes the [1] signal, and any of the indicators of the display device 10 It does not work, thereby identifying that (L ₂ ) is sound.

When the control communication line L ₂ is disconnected, the transistor T ₆ is kept in the interrupted state, so that the potential of the alarm communication line L _{13 applied} to one input terminal of the no-circuit circuit NO ₂ is high. Therefore, the output of the no-circuit NO ₂ becomes the [0] signal so that only the indicator 10a on the side connected to the ground L ₁₅ connected at that time operates, and the corresponding control communication line L ₂ ) Disconnection.

Similarly with respect to the control communication line L ₃ , the disconnection monitoring is performed by the operation of the other indicator 10b described above in accordance with the operating state of the protocal coupler PT ₂ .

As described above, according to the present invention, a plurality of alarm switches or controlled devices provided on the boundary terminal side, and alarm indicators or start control switches provided correspondingly to them on the receiving side by the contact of the plurality of communication lines. Concentrated to connect the matrix and operate the indicator operated by the alarm switch, or the controlled device operated by the control switch in response to each sequential scan of one of the communication lines of the relative configuration, thereby minimizing the number of sidelines of the communication line. A monitoring apparatus is provided, and the above-mentioned sequential scanning is performed by parallel set of binarization pulse signals, and one of the communication lines in the matrix is connected to an alarm switch or a controlled device and an indicator or a control switch through a logic circuit. It is possible to reduce the number of secondary ships.

An embodiment of the present invention is as follows.

(1) The first device is a plurality of alarm switches provided on the boundary end side, and the second device is a plurality of indicators provided on the receiving side, and each indicator operates according to the operation of the scanning means by the operation of the corresponding alarm switch. Centralized monitoring control apparatus described in the claims.

(2) The first apparatus is a plurality of control switch means provided on the receiving side, and the second apparatus is a plurality of controlled relay means provided on the boundary terminal side, wherein the circuit means connects the first ferry to it. It has a control energization switch means which can be connected to one pole of a DC power supply when the control switch means operated, One of said 2nd communication lines connected to the control switch means operated to the scanning means. The centralized monitoring control device according to the claims, wherein the control energization switch means connected to the control switch means in operation when scanned is operated to operate the corresponding controlled relay means.

(3) The first supervision line and the second supervision line are laid between the receiving side and the boundary terminal side again, and the terminal potential shows the potential of one pole of the DC power supplied to each of the first communication lines. When disconnected, a plurality of disconnection supervision detectors for substantially shorting between the first and second supervision lines are provided, and a plurality of disconnection supervision detectors for substantially shorting between the second supervision lines on one receiving side. On the one receiving side, the second monitoring line described above is connected to the other pole of the DC power supply, and the scanning means sequentially connects each of the second communication lines to the other pole of the DC power supply during the one scanning period. The first scan line is configured to perform a second scan in which each of the first communication lines is sequentially forced to the potential of one pole of the direct current power source following the first scan. Shorted to the line The centralized supervisory control apparatus described in the claim in which the disconnection supervisory display apparatus under indication is provided with respect to each of the 1st communication ship according to the scan of the said 2nd scan mentioned above.

(4) The centralized supervisory control apparatus according to the claims, wherein the scanning means connects one of the plurality of second communication lines one by one to the other pole of the DC power source.

(5) a second number of bits equal to the number of bits of the binary pulse signal giving a binary number corresponding to the number of opponents of the first device and the second device to be connected to the same line among the plurality of second communication lines; Each of the other ends of the above-mentioned first apparatus and the second apparatus, each of which has a communication line and one end is connected to the first communication line, is provided to each output of the logic circuit disposed on the receiving side and the boundary terminal side, respectively. And a matrix connection network with a first device interposed between a second communication line and a plurality of states of the logic circuit, the input of the logic circuit passing through the second communication line corresponding to the number of bits described above. In order to control by said binarization pulse signal, said scanning device is comprised by the counter circuit driven by a clock pulse generator, and each bit of the binarization pulse signal output from the said counter circuit has the said 2nd Ferry Thirteen bottle by applying a signal concentrated form according to the scope of the appended claims hagekkeum to the potential of the other pole of the direct current power source to the one output terminal of the logic circuit in turn for each external monitoring and control system.

(6) A plurality of indicators and a plurality of control switch means are provided on the receiving side, a plurality of alarm switches and a plurality of controlled relay means are provided on the boundary end side, and each of the above indicators is provided with a plurality of alarm communication lines; The matrix connection is performed by a common communication line to correspond to each of the indicator and the alarm switch, and the control switch means and the controlled switch means are matrix-connected by a plurality of control communication lines and the common communication line to control the switch means. And control switch means connected to each of the above-described alarm communication lines to one pole of the DC power supply on the receiving side, and to each of the control communication lines connected thereto. Of each of the DC power supplies described above, respectively, In addition, the receiving side is provided with a scanning means for turning each of the common communication lines described above into the potential of the other pole of the DC power source in turn, and the common communication line connected to the operated alarm switch was scanned by the scanning means. For control connected to the control switch means operated when the common communication line connected to the control switch means for causing the indicator connected to the same common communication line to operate in response thereto and to operate in response to the operated indicator. Centralized supervisory control device in which energizing switch means is connected so that one of the control communication lines is connected to one pole of the DC power supply, and the controlled relay line connected to the control communication line and the scanned common communication line can be moved. .

(7) A disconnection monitoring communication line is again provided between the receiving side and the terminal side, and the disconnection monitoring communication line is continuously connected to each of the common contact lines during the scanning cycle by the scanning means on the receiving side, and then the other side of the DC power supply. At the boundary terminal side, it detects whether the potential of one pole of the DC power source is displayed on the control communication line on each of the control communication line and the alarm communication line, and attaches the corresponding alarm contact line to the above-mentioned disconnection monitoring communication line. A plurality of disconnection supervision detectors, which are substantially short-circuited, are provided, and on the receiving side, once the disconnection supervision communication line is brought to the potential of the other pole of the DC power supply by the scanning means, the reception and one input terminal conduct all of the energization switch means for control. Is connected to disconnection monitoring communication cable and each alarm communication cable is connected to the other input terminal. The centralized monitoring device according to item 6, wherein a plurality of disconnection monitoring indicators connected to each other are provided, and each disconnection indicator allows disconnection display when only one input terminal thereof is at the potential of the other pole of the DC power supply. .

Claims (1)

A plurality of first devices (alarm switches W _{1 to} W ₉ , control switches Sa to Sc) are provided on either the receiving side or the boundary terminal side, and a plurality of second devices (indicators 1a to 1i and relays are provided on the other side). 4a to 6c), and the first device and the second device are connected by a plurality of communication lines, and are installed on the receiving side by operation of either one of the first and second devices. in the power supply (給電) a known concentration monitor control apparatus gekkeum to correspond hayeoseo operation to the other by a from the DC power source, the ferry one of a plurality of the devices and the second device of the above claim 1 (L ₅ ~ L _7, L _{2 to} L ₄ ) and a plurality of _{second communication} lines (L _{8 to} L ₁₀ ) are connected in a matrix to correspond to the first and second devices, respectively. Circuit means (R ₉ to R ₁₁ , R ₁ to R ₆ ; T _{1 to} T ₃ , respectively) connected to one pole of the above-described DC power source ) And scanning means (2) for connecting each of the above-mentioned second communication lines to the potential of the other pole of said DC power supply in order.

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