JP2008085506A - Remote monitoring control system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a remote monitoring control system in which a control terminal can confirm the current number of opening/closing times of an incorporated relay. <P>SOLUTION: The control terminal 3 is provided with a section 33 for counting the number of opening/closing times of an incorporated relay 31, and a control section 37 for controlling a wireless transmitting section 36a to transmit the number of opening/closing times counted at the counting section 33 together with address data stored in an address storage section 39 when a wireless receiving section 36b receives an address data validation request transmitted by a wireless signal. On the other hand, an address setter 4 is provided with a display 41, an operating section 42 performing address data validation, and a control section 44 for controlling a wireless transmitting section 43a to transmit the address data validation request by a wireless signal in response to operation at the operating section 42, and controlling the display 41 to display the received address data and the number of opening/closing times when a wireless receiving section 43b receives the address data and the number of opening/closing times transmitted by a wireless signal. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a remote monitoring control system including a control terminal with a built-in relay.

  Conventionally, a relay, a control unit for controlling the relay, and a data conversion module connected between the relay and the control unit are provided, and the data conversion module exchanges data of signals exchanged between the control unit and the relay. There has been provided a monitoring and control system that can monitor and control each relay from a control unit by converting the format (see, for example, Patent Document 1).

In addition, as a system for turning on / off the power supply to the load using a relay, there are an operation terminal having a switch and a unique address set corresponding to the switch, and a relay for turning on / off the power supply to the load. A control terminal set with a unique address corresponding to the relay, and each terminal is connected via a signal line, and exchanges transmission signals with each terminal by a time division multiplex transmission method, Control data for controlling the relay is generated based on monitoring data received from the operation terminal when the switch is operated, and the control is performed to the control terminal having a relay in which a correspondence relationship is set in advance for the operated switch. A remote monitoring and control system including a transmission control device for transmitting data is also provided.
JP 2002-369267 A (paragraphs [0013]-[0028] and FIG. 2)

  In the remote monitoring control system described above, the life of a control terminal with a built-in relay largely depends on the number of times the relay is opened / closed. Therefore, the approximate opening / closing frequency is estimated from the usage period of the control terminal, and the replacement time of the control terminal is predicted. Therefore, there is a possibility that it becomes uneconomical because the control terminal is replaced before the number of times of opening and closing reaches the number of lifespan, or the control terminal may be used for a while after the number of times of opening and closing reaches the number of times of life. was there.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a remote monitoring and control system capable of confirming the current number of opening and closing of a relay built in the control terminal. is there.

  In order to achieve the above object, the invention of claim 1 corresponds to a relay provided with an operation terminal having a switch and a unique address set corresponding to the switch, and a relay for turning on and off the power supply to the load. When a switch is operated when a control terminal with a unique address set is connected to each terminal via a signal line and a transmission signal is exchanged between each terminal using the time division multiplex transmission method A transmission control device for generating control data for controlling a relay based on monitoring data received from an operation terminal and transmitting control data to a control terminal having a relay in which a corresponding relationship is set in advance for the operated switch The address data set for each terminal is given by a wireless signal from the outside of each terminal, and is added to the rewritable address storage unit provided in each terminal. A remote monitoring and control system comprising an address setting unit for storing data, a first wireless reception unit for receiving a wireless signal, a first wireless transmission unit for transmitting a wireless signal, and a built-in control terminal A counting unit that counts the number of times the relay is opened and closed, and when the first wireless receiving unit receives a confirmation request for address data transmitted by a wireless signal, the counting unit counts the number of opening and closings together with the address data stored in the address storage unit. And a first wireless transmission unit for transmitting the wireless signal to the address setting unit, and a second wireless transmission unit for transmitting the wireless signal. A display device having a display screen, an operation unit for confirming address data, and the operation A second transmission control unit for transmitting an address data confirmation request from the second wireless transmission unit by a wireless signal in response to an operation of the unit, and a second wireless reception unit for transmitting the address data and opening / closing frequency transmitted by the wireless signal. And a display control unit for displaying the received address data and the number of times of opening / closing on the display.

  According to a second aspect of the present invention, in the first aspect of the present invention, a life confirmation switch and a life indication lamp are provided on the surface of the body of the control terminal, and a drive current is supplied to the life indication lamp according to the operation of the life confirmation switch. A lamp drive unit to be supplied is provided in the control terminal, and the lamp drive unit controls switching of the frequency at which the display lamp blinks when the number of times of opening and closing exceeds a predetermined reference value, or the blinking state and lighting state of the display lamp. One of the switching control is performed.

  According to the first aspect of the present invention, when confirming the address set in the control terminal using the address setter, when the first wireless reception unit of the control terminal receives the address data confirmation request, The first transmission control unit causes the first wireless transmission unit to transmit the current opening / closing count counted by the counting unit together with the address data. In the address setting device, the display control unit receives the second wireless reception unit. Since the displayed address data and the number of switching times are displayed on the display unit, when checking the address of the control terminal using the address setting unit during maintenance, etc., the number of times the relay built in the control terminal is Since it can confirm simultaneously, there exists an effect that the exchange time of a control terminal can be estimated more correctly based on the present opening / closing frequency | count. In addition, by more accurately estimating the replacement timing of the control terminal device, it is easy to make a replacement plan for the control terminal device, which is useful for budgeting for replacement. Furthermore, in a system that has been used for a certain period of time, if all control terminals cannot be replaced at a time for budget reasons, the current number of times of opening and closing of the relay is determined whether or not the control terminal needs to be replaced immediately. Control terminals that have a relatively small number of relay opening and closing times can be used as a material for judgment. By delaying the replacement time, the control terminal replacement time can be shifted to subdivide the expenses required for control terminal replacement. There is also an effect that can be done. In addition, by letting the user know the exact number of times the relay has been opened and closed, it is possible to encourage consideration of updating the entire system. Further, when a malfunction of the control terminal occurs in the market, it is possible to determine whether the cause of the malfunction is due to the life of the relay based on the number of times the relay is opened and closed.

  According to the invention of claim 2, even when the address setting device is not at hand, if the confirmation switch provided on the surface of the control terminal is operated, the lamp driving unit supplies the driving current to the display lamp and the display lamp When the number of open / close times exceeds a predetermined reference value, the lamp driver either switches the frequency at which the display lamp blinks, or controls to switch the blinking state and lighting state of the display lamp. Therefore, it is possible to grasp the level of the current number of opening / closing and the reference value from the display of the display lamp, and it is possible to grasp the life of the control terminal to some extent.

  Embodiments of the present invention will be described below with reference to FIGS.

  The control terminal and address setting device according to the present invention are used in a remote monitoring control system. First, the remote monitoring control system will be described with reference to FIGS. FIG. 5 is a system configuration diagram of the remote monitoring control system. A transmission control device 1 is connected to one end of a two-wire signal line Ls, and a plurality of operation terminals 2 and control terminals 3 are connected to the signal line Ls. Branch connected. The operation terminal device 2 includes a switch SW and monitors the operation of the switch SW. The control terminal 3 includes a relay 31 in which a series circuit of a load 5 such as a lighting load and a power source 6 is connected between both ends, and the relay 31 is turned on according to control data from the transmission control device 1. By turning on / off, on / off of the load 5 is controlled.

  The transmission control device 1 sends and receives data to and from the terminals 2 and 3 by sending a transmission signal Vs having a format as shown in FIG. That is, the transmission signal Vs includes the start pulse ST indicating the start of signal transmission, the mode data MD indicating the signal mode, the address data AD for individually identifying the terminals 2 and 3, and the control content to the load 5. Bipolar (± 24V) time division multiplexed signal comprising control data CD, error correction code CS such as checksum data for detecting a transmission error, and signal return period WT for setting a return period from terminals 2 and 3 The data is transmitted by pulse width modulation (see FIG. 6B). In each of the terminals 2 and 3, when the address data AD of the transmission signal Vs received via the signal line Ls matches the address data set in advance, the control data CD of the transmission signal Vs is taken in, In synchronization with the signal return period WT of the transmission signal Vs, the monitoring data is returned as a current mode signal (a signal transmitted by short-circuiting the signal lines Ls via an appropriate low impedance). .

  On the other hand, the transmission control device 1 is provided with dummy signal transmission means and interrupt processing means. The dummy signal transmission means always transmits a transmission signal Vs in which the mode data MD is changed to the dummy mode and the address data AD is changed cyclically. Further, in the interrupt processing means, an interrupt signal Vi as shown in FIG. 6C is generated from the operation terminal 2 in synchronization with the start pulse ST of the transmission signal Vs in the dummy mode by the operation of the switch SW in the operation terminal 2. In this case, the operation terminal 2 having the switch SW is collectively accessed, so that the operation terminal 2 that has generated the interrupt signal Vi returns the address data together with the operation data as monitoring data.

  When the transmission control device 1 receives the address data from the operation terminal 2 as described above, the transmission control device 1 creates the control data CD for the control terminal 3 in which the correspondence relationship based on the address data is preset based on the monitoring data. Then, time division multiplex transmission is performed via the signal line Ls. Thus, the designated control terminal 3 turns on / off the built-in relay 31 according to the control data CD included in the transmission signal, thereby turning on / off the load 5 connected to the control terminal 3. Off is controlled.

  By the way, in this type of remote monitoring and control system, it is necessary to set address data in each of the terminals 2 and 3. Conventionally, the address data is set using a mechanical switch such as a dip switch. Since the setting operation of the switch is troublesome and the mechanical switch causes poor contact and has low reliability, recently, the address data is stored in an address storage unit using a nonvolatile memory such as an EEPROM. Is adopted. In this case, as shown in FIG. 5, the wireless address setting device 4 is used for setting the address data, and the address data can be set by a wireless signal from outside the operation terminal device 2 or the control terminal device 3 to be set. Proposed. In order to set the address data in each of the terminals 2 and 3 by the address setter 4, first, the address setter 4 is brought close to the desired terminal 2 or 3 for which the address data is to be set. The address data currently set in the terminals 2 and 3 is acquired by performing wireless communication between the terminals and displayed on the display 41 such as a liquid crystal display, and the operation unit 42 provided in the address setter 4 is used. After the address data is changed to a desired address, the changed address data is transmitted to the terminal devices 2 and 3 to be set by wireless signals, so that the address data of the terminal devices 2 and 3 is changed. ing.

  Next, the control terminal unit 3 and the address setting unit 4 which are characteristic parts of the present invention will be described with reference to FIGS. Since the transmission control device 1 and the operation terminal 2 have the same configuration as that used in a conventionally known remote monitoring and control system, description thereof will be omitted.

  As shown in FIG. 1B, the control terminal 3 includes a relay 31, a relay drive unit 32 that turns on / off the relay 31 in accordance with a control signal from a control unit 37 described later, and the number of times the relay 31 is opened and closed. A counting unit 33 that counts, and a transmission processing unit 34 that is connected to the transmission control device 1 through the signal line Ls and receives and transmits a multiplexed transmission signal to and from the transmission control device 1, and is input through the signal line Ls. A power supply unit 35 that obtains an internal operating power source by full-wave rectifying a bipolar transmission signal, and a first wireless transmission unit that includes a light emitting element such as a light emitting diode and transmits a wireless signal composed of, for example, an optical signal (Hereinafter, abbreviated as a wireless transmission unit.) 36a and a first wireless reception unit that includes a light receiving element such as a photodiode and receives a wireless signal including, for example, an optical signal ( (Hereinafter abbreviated as “wireless receiver”) 36b, wireless transmitter / receiver 36 for transmitting / receiving a wireless signal comprising an optical signal to / from the outside, control unit 37 constituted by a microcomputer, for example, RAM and ROM The memory 38 for storing the operation program and operation data of the control unit 37, the address storage unit 39 for storing the address data assigned to the control unit 37, and the control terminal device 3 for confirming the opening / closing frequency A life confirmation switch SW and a life display lamp La that blinks at a blinking cycle corresponding to the number of opening / closing operations or remains on or off when the life confirmation switch SW is operated are provided. The address storage unit 39 uses a non-volatile rewritable memory such as an EEPROM so that the address data can be stored and held even when the power supply to the control terminal 3 is stopped, but has a backup power source. You may comprise RAM.

  As shown in FIG. 2, the light emitting / receiving unit of the wireless transmission / reception unit 36 and the operation unit of the life confirmation switch SW are arranged on the front surface of the body 30 of the control terminal 3, and the life display lamp La Are arranged in a state where light emission can be visually recognized from the outside.

  Here, in FIG. 1B and FIG. 5, only one relay 31 is provided, but in reality, one or more relays 31 (for example, four circuits) are provided. The number of times the relay 31 is opened and closed is counted, and the count value of each relay 31 is individually stored in a non-volatile memory (not shown). Further, in the present embodiment, the control terminal 3 incorporates the relay 31, but the control terminal 3 controls on / off of a remote control relay (not shown) formed separately from the control terminal 3. In this case, the number of opening / closing of the remote control relay may be counted by the counting unit 33 and stored in the nonvolatile memory.

On the other hand, as shown in FIG. 1A and FIG. 3, the address setting unit 4 includes a display unit 41 made of a liquid crystal display, an operation unit 42 made up of a plurality of switches S1 to S48,
A second wireless transmission unit (hereinafter abbreviated as a wireless transmission unit) 43a that includes a light-emitting element such as a light-emitting diode and transmits a wireless signal including, for example, an optical signal, and a light-receiving element such as a photodiode. Wireless transmission / reception comprising a second wireless receiver 43b (hereinafter abbreviated as a wireless receiver) 43b for receiving a wireless signal comprising an optical signal, for example, and for transmitting / receiving a wireless signal comprising an optical signal to / from the outside Unit 43, a control unit 44 composed of, for example, a microcomputer, a memory 45 comprising, for example, a RAM and a ROM for storing operation programs and operation data of the control unit 44, and addresses set in the terminals 2 and 3 Setting data storage unit 46 that stores data and the like, and supplies operating power to the internal circuit using a battery as a power source And a power supply unit 47. The setting data storage unit 46 is a non-volatile rewritable memory such as an EEPROM so that data can be stored and retained even when the power switch (not shown) is turned off to stop the power supply from the power supply unit 47 to each unit. Although used, a RAM or the like that has been backed up so that the stored contents are retained even when the power switch is turned off may be used.

  As shown in FIG. 3, the body 40 of the address setting unit 4 has a flat rectangular parallelepiped shape and is formed in a size and weight that can be gripped with one hand. The address setting device 4 can be easily carried and used. On one surface (front surface) of the container body 40, the display device 41 is disposed on one end side in the longitudinal direction (the side on which the display device 41 is disposed), and a plurality of switches S1 to S48 constituting the operation unit 42 are displayed on the display device. 41 is arranged below. Further, a transmission window 43c that transmits a wireless signal (an optical signal such as infrared rays) transmitted and received by the wireless transmission / reception unit 43 is provided at one end in the longitudinal direction of the container body 40, and wirelessly faces the transmission window. A transmission / reception unit 43 is arranged. That is, when the body 40 is grasped with one hand with the operation unit 42 on the front side, the transmission window 43c through which the wireless signal is transmitted is positioned forward.

  Here, as a switch constituting the operation unit 42, the confirmation switch S1 used when confirming the contents set in each of the terminals 2 and 3 and the cursor displayed on the screen of the display 41 are set to a line feed (line). A line feed switch S2 used for transmission), a setting switch S3 used for setting the setting contents displayed on the display device 41 to the terminals 2 and 3, and a control type (for example, individual control, dimming) Switches ("individual", "dimming", "G", "P") S11 to S14 for inputting control, group control, pattern control) and switches S20 to S30 such as a numeric keypad used for inputting an address value The forward setting switch S31 used when the address data is generated in ascending order and set in order, the next address data is generated by skipping the address data generated in ascending order An address clear switch S32 to be turned on, a backlight switch S33 to be used for turning on the backlight of the display 41 (the backlight is automatically turned off when there is no key input for a certain time (for example, 1 minute)), and timer control Switch ("Delay", "Temporary") S41, S42 for selecting off-delay control and temporary on-control, and timer control time from 30 seconds, 1, 5, 60, 120 minutes Switches S44 to S48 to be selected and a switch S43 for erasing the setting contents of the timer control are provided. These switches S1 to S48 are formed of pushbutton switches, and their operation portions are arranged on the front surface of the flat container 40.

  In addition, as shown in FIG. 3, the display 41 includes the types of terminals (for example, operation terminals (switches), contact input terminals (input T / U), control terminals (relay T / U), dimming terminals. Display frames 41a to 41d indicating a device (such as dimming T / U) are arranged side by side on the upper side of the screen. In the center of the display 41, a display area 41e is provided for displaying functions (types of control) in the left column, addresses in the center column, and timer control settings in the right column.

  Here, in using this address setting device 4, the power of the address setting device 4 is turned on, and the wireless transmission / reception unit 43 of the address setting device 4 is brought close to the wireless transmission / reception unit of the terminal devices 2 and 3 to be set. When the confirmation switch S1 is pressed, the setting contents of the terminals 2 and 3 are read and displayed on the display 41. If the terminal device to be set is the operation terminal device 2, the bar 41f is displayed in the display frame 41a corresponding to the operation terminal device 2, and the display area 41e is assigned to each switch of the operation terminal device 2. The control type, address, and presence / absence of timer control are displayed.

  When the address setting unit 4 acquires the information of the operation terminal device 2 to be set, after pressing any of the switches S11 to S14 to select the type of control, the address is input using the switches S20 to S30. If further timer control setting is desired, the timer setting is performed using the switches S41 to S48. When the line feed switch S2 is pressed after confirming the setting contents, the setting contents are stored in the setting data storage unit 46. After the above setting operation is performed for all switches, when the setting switch S3 is pressed while the wireless transmission / reception unit 36 of the address setting unit 4 is brought close to the wireless transmission / reception unit of the operation terminal device 2 to be set, the setting contents are changed. The setting content is registered by being transmitted by a wireless signal and received by the wireless transmission / reception unit of the operation terminal device 2 and stored in the address storage unit. By performing the above operations on the terminals 2 and 3, the addresses of the terminals 2 and 3 can be set.

  By the way, in the control terminal 3 having a built-in relay, since the life of the built-in relay 31 greatly depends on the number of times of opening / closing, the counting unit 33 for counting the number of times of opening / closing of the relay 31 is provided in this embodiment. It is stored in a non-volatile memory (not shown). Here, the number of opening / closing of the relay 31 counted by the counting unit 33 can be confirmed using the address setting device 4. That is, when the operator wants to confirm the number of times of opening / closing of the relay 31 incorporated in the control terminal 3, the address setter 4 is brought close to the wireless transmitter / receiver 36 of the control terminal 3. When the confirmation switch S1 of No. 4 is pushed, the control unit 44 as the second transmission control unit requests the control terminal 3 to transmit setting contents such as address data in accordance with the input signal from the confirmation switch S1. A confirmation request is transmitted from the wireless transmission unit 43a by a wireless signal. At this time, the wireless reception unit 36b of the control terminal 3 receives the confirmation request transmitted by the wireless signal from the address setting unit 4, and the control unit 37 as the first transmission control unit responds to this confirmation request with the address. The current setting content set in the storage unit 39 and the count value of the counting unit 33 stored in the nonvolatile memory are read, and the read setting content and the count value of the counting unit 33 are read from the wireless transmission unit 36a. Send it. Then, when the wireless reception unit 43b of the address setting unit 4 receives the setting content transmitted from the control terminal 3 by the wireless signal and the count value of the counting unit 33, the control unit 44 as the display control unit receives the setting content. The setting contents and the count value of the counting unit 33 are displayed on the display 41, and the operator can easily confirm the number of times of opening / closing the relay 31 built in the control terminal 3 from the display on the display 41. .

  FIG. 4B shows a display screen when the current setting content of the control terminal 3 is confirmed using the conventional address setting device 4, and the bar 41 f is displayed in the display frame 41 c corresponding to the control terminal 3. Is displayed and the control type and address of the relay 31 for four circuits are displayed in the display area 41e. In the case of the control terminal 3, the display field 41g for displaying the contents of the timer control is not used. It is blank. Therefore, in the address setting device 4 of this embodiment, the display field 41g for displaying the contents of the timer control is used as a display field for displaying the number of times the relay 31 is opened and closed, as shown in FIG. In this manner, the control type, address, and open / close count of the relays 31 for four circuits are displayed side by side in the display area 41e.

  As described above, when the address setter 4 is used to check the address set in the control terminal 3, when the wireless reception unit 36 b of the control terminal 3 receives the address data check request, the control unit 37. Is transmitted from the wireless transmission unit 36a together with the address data, and the control unit 44 in the address setting unit 4 displays the address data and the number of switchings received by the wireless reception unit 36b. 41, when the address of the control terminal 3 is confirmed using the address setting device 4 during maintenance or the like, it is possible to simultaneously confirm the number of times the relay 31 built in the control terminal 3 is opened or closed. it can. Therefore, there is an effect that it is possible to more accurately estimate the replacement time of the control terminal 3 based on the current number of opening and closing of the relay 31. In addition, estimating the replacement timing of the control terminal 3 more accurately makes it easy to make a replacement plan for the control terminal 3 and has an effect of helping to budget for replacement. Furthermore, in a system that has been used for a certain period of time, if it is not possible to replace all the control terminals 3 at once due to budget constraints, is it necessary to replace the control terminals 3 urgently based on the number of times of opening / closing the relay 31? The control terminal 3 that can determine whether or not the relay 31 is opened / closed relatively few times is necessary to replace the control terminal 3 by shifting the replacement time of the control terminal 3 by delaying the replacement time. Expenses can be subdivided. In addition, since the number of times of opening / closing the relay 31 can be easily confirmed, the user can be encouraged to consider updating the entire system. Further, when an operation failure of the control terminal 3 occurs in the market, it can be easily determined from the number of times the built-in relay 31 is opened or closed whether the cause of the operation failure is due to the life of the relay 31.

  By the way, in this embodiment, in order to be able to confirm the number of times the built-in relay 31 of the control terminal 3 is opened and closed even when the address setting device 4 is not provided, a life confirmation switch SW comprising a tact switch on the front surface of the control terminal 3 and a light emitting diode The life display lamp La is provided (see FIG. 1B and FIG. 2). Here, when the operator pushes the life confirmation switch SW of the control terminal 3, the control unit 37 as the lamp driving unit performs the operation of the counting unit 33 from the nonvolatile memory based on the operation input from the life confirmation switch SW. The count value is read, and the life display lamp La is blinked at a blinking cycle corresponding to the count value, or the life display lamp La is turned on or off. Here, in the present embodiment, the control unit 37 switches on / off / flashing of the life display lamp La according to, for example, the ratio of the current open / close count to the life count, and the ratio to the life count is less than 80%. For example, the life display lamp La is turned off, and if the ratio to the number of times of life is 80% or more and less than 90%, the life display lamp La is blinked at a rate of 10 times for 10 seconds for 10 seconds and the ratio to the number of times of life is 90% or more. If it is less than 100%, the life display lamp La flashes for 10 seconds at a rate of 30 times in 10 seconds, and if the ratio to the number of times of life is 100% or more, the life display lamp La is turned on for 10 seconds. As described above, when the ratio of the current open / close count to the life count (that is, the open / close count) exceeds a predetermined reference value, the life display lamp La is switched from the extinguished state to the blinking state, the blinking cycle is changed, or the blinking is performed. Since the state is switched to the lighting state, even if the address setting device 4 is not provided, it is possible to grasp the level of the current open / close count and the reference value from the display of the life display lamp La, and thus the life of the control terminal 3 There is an effect that it can be grasped within a certain range.

  It should be noted that a wide variety of different embodiments can be configured without departing from the spirit and scope of the present invention, and the present invention is not limited to a specific embodiment.

This embodiment is shown, (a) is a block diagram of an address setting device, (b) is a block diagram of a control terminal. It is explanatory drawing of a control terminal device and an address setting device same as the above. It is a front view of an address setting device same as the above. (A) is an example figure of the display screen of an address setting device same as the above, (b) is an example figure of the conventional display screen. It is a system configuration diagram of a remote monitoring control system using the same. (A)-(c) is explanatory drawing of the transmission signal used for the same as the above.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Transmission control apparatus 2 Operation terminal device 3 Control terminal device 4 Address setting device 5 Load 6 Power supply 31 Relay 33 Counting part 36a Wireless transmission part (1st wireless transmission part)
36b Wireless receiver (second wireless receiver)
37 control unit (first transmission control unit, lamp driving unit)
39 Address storage unit 41 Display unit 42 Operation unit 43a Wireless transmission unit (second wireless transmission unit)
43b Wireless receiver (second wireless receiver)
44 control unit (second transmission control unit, display control unit)
SW Life confirmation switch La Life indication lamp Ls Signal line

Claims (2)

An operation terminal having a switch and having a unique address set in correspondence with the switch; a control terminal having a relay to turn on / off power supply to a load and having a unique address set in correspondence with the relay; Based on the monitoring data received from the operation terminal when the switch is operated, each terminal is connected via a signal line, exchanges transmission signals with each terminal by the time division multiplex transmission method. A transmission control device for generating control data for controlling the relay and transmitting the control data to a control terminal having a relay in which a correspondence relationship is set in advance for the operated switch, and each of the terminals is set. Address data is provided from the outside of each terminal by a wireless signal, and the address data is stored in a rewritable address storage unit provided in each terminal. To a remote monitoring control system and an address setting device,
The control terminal is transmitted by a wireless signal, a first wireless receiving unit that receives a wireless signal, a first wireless transmitting unit that transmits a wireless signal, a counting unit that counts the number of times of opening and closing of a built-in relay, and A first transmission control unit that causes the first wireless transmission unit to transmit the open / close count counted by the counting unit together with the address data stored in the address storage unit when the first wireless reception unit receives the confirmation request for the address data. And providing
A second wireless receiver for receiving a wireless signal, a second wireless transmitter for transmitting a wireless signal, a display having a display screen, and an operation unit for confirming address data A second transmission control unit for transmitting a request for confirmation of address data from the second wireless transmission unit by a wireless signal in response to an operation of the operation unit; A remote monitoring control system, comprising: a display control unit for displaying on the display the received address data and the number of times of opening and closing when the wireless receiving unit receives the data.   The control terminal is provided with a life confirmation switch and a life indication lamp on the surface of the body of the control terminal, and a lamp driving unit for supplying a drive current to the life indication lamp according to the operation of the life confirmation switch is provided in the control terminal. The drive unit performs either a control for switching a frequency at which the display lamp blinks or a control for switching a blinking state and a lighting state of the display lamp when the number of times of opening and closing exceeds a predetermined reference value. Item 4. The remote monitoring and control system according to Item 1.

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