WO2010079742A1 - Dispositif de surveillance à distance et de télécommande - Google Patents

Dispositif de surveillance à distance et de télécommande Download PDF

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Publication number
WO2010079742A1
WO2010079742A1 PCT/JP2010/000035 JP2010000035W WO2010079742A1 WO 2010079742 A1 WO2010079742 A1 WO 2010079742A1 JP 2010000035 W JP2010000035 W JP 2010000035W WO 2010079742 A1 WO2010079742 A1 WO 2010079742A1
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WO
WIPO (PCT)
Prior art keywords
constant voltage
remote monitoring
signal
control device
terminal
Prior art date
Application number
PCT/JP2010/000035
Other languages
English (en)
Japanese (ja)
Inventor
深町宗徳
岩崎渉
池田貴大
長井未果
Original Assignee
サンデン株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by サンデン株式会社 filed Critical サンデン株式会社
Publication of WO2010079742A1 publication Critical patent/WO2010079742A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2209/00—Arrangements in telecontrol or telemetry systems
    • H04Q2209/10—Arrangements in telecontrol or telemetry systems using a centralized architecture
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2209/00—Arrangements in telecontrol or telemetry systems
    • H04Q2209/80—Arrangements in the sub-station, i.e. sensing device
    • H04Q2209/82—Arrangements in the sub-station, i.e. sensing device where the sensing device takes the initiative of sending data

Definitions

  • the present invention relates to a remote monitoring and control apparatus that remotely monitors and controls equipment via a wireless packet communication network.
  • Telemetering which collects information via a wireless packet communication network
  • Telemetering was originally a general term for a mechanism for reading out the measurement value of a measuring instrument using a communication line.
  • the term is generally used not only for reading data but also for monitoring the operation of devices and for remote control.
  • Typical examples of telemetering include a vending machine sales management system, a gas / water usage management system, an operation monitoring system for various equipment such as boilers, and an unmanned parking management system.
  • a remote monitoring control device is provided in parallel with a monitoring target or a control target device.
  • Patent Document 1 describes an example of a remote monitoring control device.
  • the remote monitoring and control device described in Patent Document 1 is used as a system for monitoring the supply amount of gas, and a pressure transmitter for generating monitoring data is connected to the remote monitoring and control device.
  • This pressure transmitter is a device that detects the secondary pressure of the governor that adjusts the gas supply pressure.
  • the pressure transmitter is supplied with 24V DC from the remote monitoring control device, and analog data corresponding to the detected pressure is input to the remote monitoring control device.
  • the above remote monitoring and control device has a problem that it cannot be applied to other systems because it is a device specialized for monitoring the gas supply amount. That is, the input signal to the remote monitoring control device requires power supply from the remote monitoring control device when the connected device is a sensor or the like as described above, but the required specifications of the power supply vary depending on the device. . Further, the input signal to the remote monitoring control device may be an AC signal or a DC signal, and the maximum voltage and the like are various. In order to correspond to such various input signal specifications, it is conceivable to provide input terminals according to each specification. However, in this case, the number of input terminals increases, and it is difficult to reduce the size of the equipment or input channels. There were problems such as the need to reduce the number.
  • the present invention has been made in view of the above circumstances, and an object of the present invention is to provide a remote monitoring and control apparatus that can handle various input signals.
  • the present invention provides a communication module for connection to a wireless packet communication network, a control circuit that performs communication processing using the communication module and monitoring processing for a monitoring target, the control circuit and the monitoring circuit Rectification for rectifying a signal applied between a first and a second terminal and a first and a second terminal for inputting a signal from the monitored object in a remote monitoring and control apparatus having an interface circuit with the object Means, a constant voltage converting means for dropping the output signal of the rectifying means to a constant voltage, and a detecting means for detecting the signal converted to a constant voltage by the constant voltage converting means and transmitting it to the control circuit.
  • the rectifying means when the input signal is alternating current, it is converted into a direct current signal by the rectifying means.
  • the rectifying means passes as it is.
  • the DC signal is converted to a constant voltage by the constant voltage converting means and detected by the detecting means. Therefore, even if the input signal input between the first and second terminals is AC or DC, signal detection is possible even if the input signal is a high voltage.
  • the present invention relates to the remote monitoring and control apparatus, wherein the third terminal connected to the ground and the connection destination of one input line of the detection means are connected to one output line of the constant voltage means or the DC power supply. And switching means for switching to any one of them.
  • a device such as a sensor that requires a power source is provided between either the first or second terminal connected to one output line of the constant voltage means and the third terminal. Connect and monitor. That is, by connecting the connection destination of one input line of the detection unit to the DC power source by the switching unit, a current from the DC power source flows in the detection unit according to the resistance value / conduction state of the sensors. Therefore, the detection means can monitor the device by detecting the current.
  • the thing containing a shunt regulator is mentioned, for example.
  • the rectifying means for example, a first diode connected from the first input terminal to one of the input line directions of the constant voltage forming means as a forward direction, and a second diode from the other input line of the constant voltage forming means. And a second diode connected with the input terminal direction as the forward direction.
  • an AC signal and a DC signal can be detected by a common terminal (first and second terminals), so that the apparatus can be downsized and the number of channels can be reduced at a low cost. can do. Furthermore, according to the present invention, since sensors that require power supply can be connected using one of the first and second terminals and the third terminal, the apparatus can be downsized and the number of channels can be reduced. Can be realized.
  • FIG. 1 is a perspective view of the remote monitoring control apparatus with the lid removed
  • FIG. 2 is a functional block diagram of the remote monitoring control apparatus.
  • a remote monitoring control apparatus 1 includes a box-shaped first casing 100 and a box-shaped second casing attached to the upper surface of the first casing 100.
  • the body 200 is provided.
  • the first housing 100 has an inclined surface extending from the thin box-shaped upper surface to the edge.
  • the first casing 100 includes a casing main body 110 that opens from a part of the upper surface to the inclined surface and a side surface (front surface) adjacent to the inclined surface, and a lid 120 that closes the opening of the main body 110. It has.
  • the housing body 110 includes a partition plate 111 extending from the edge of the top opening to the bottom surface.
  • a through hole 112 for passing wiring is formed on the side surface of the housing main body 110.
  • a grommet 113 is attached to the through hole 112.
  • the remote monitoring control device 1 includes a communication module 10 for connecting to a wireless packet communication network, and a control for performing communication processing using the communication module 10 and monitoring processing and control processing of a monitoring target device.
  • a circuit 20 and an interface circuit 300 with a monitoring target device are provided.
  • the control circuit 20 is mounted on a circuit board (not shown) disposed in the second casing 200.
  • the communication module 10 is also disposed in the second housing 200.
  • the interface circuit 300 is mounted on a circuit board 150 disposed in the first housing 100.
  • a circuit board (not shown) arranged in the second casing 200 and a circuit board 150 arranged in the first casing 100 are cables (not shown) arranged in a passage formed between the casings. ).
  • FIG. 3 shows a circuit diagram of the interface circuit 300.
  • the interface circuit 300 has eight input channels, but only one input channel will be described here for the sake of simplicity.
  • the interface circuit 300 is designed so that various monitoring data can be input. Specifically, it is possible to input an AC signal and a DC signal output from the monitoring target device or sensors attached to the device. In this embodiment, AC 100 to 200 V and DC 12 to 24 V can be input. In addition, it is possible to cope with the case where it is necessary to supply power for the monitoring target device or the sensors attached to the device to output monitoring data. For example, there are cases where the sensors are switching elements or elements whose resistance values change. Hereinafter, the interface circuit 300 will be described in more detail.
  • the interface circuit 300 includes three input terminals 301, 302, and 303.
  • an input terminal 301 and an input terminal 302 are used.
  • the input terminal 301 is a positive electrode and the input terminal 302 is a negative electrode.
  • the input terminal 302 and the input terminal 303 are used.
  • the input terminal 303 is grounded via the fuse 312.
  • the input terminal 301 is connected to one terminal of a circuit protection varistor 313 via a fuse 311.
  • the other terminal of the varistor 313 is connected to the input terminal 302.
  • One terminal (input terminal 301 side) of the varistor 313 is connected to the third terminal 323 of the jumper switch 320.
  • a DC power supply (DC 12 V in this embodiment) is connected to the first terminal 321 of the jumper switch 320.
  • the jumper switch 320 short-circuits the second terminal 322 and the third terminal 323 using a jumper pin (not shown) when monitoring an AC signal or a DC signal.
  • the first terminal 321 and the second terminal 322 are short-circuited using a jumper pin.
  • the second terminal 322 of the jumper switch 320 is connected to the anode of a diode 331 that is a rectifying element.
  • the other terminal (input terminal 302 side) of the varistor 313 is connected to the cathode of a diode 332 that is a rectifying element.
  • the cathode of the diode 331 is connected to the cathode of the shunt regulator 343 via two resistors 341 and 342 for current limiting.
  • the shunt regulator 343 is for constant voltage, the reference terminal is connected to the cathode, and the anode is connected to the anode of the diode 332 to the cathode.
  • a capacitor 344 and a resistor 345 are connected between the cathode and the anode of the shunt regulator 343, and NPN transistors 351 and 352 connected in a Darlington connection are connected.
  • the emitter of the transistor 352 is connected to the resistor 345 through a resistor 353.
  • the collectors of the transistors 351 and 352 are connected to the cathode of the photocoupler 361.
  • the anode of the photocoupler 361 is connected to the cathode of the diode 331.
  • the light receiving element side of the photocoupler 361 is connected to the control circuit 20.
  • the AC signal applied between the input terminal 301 and the input terminal 302 is rectified by the diodes 331 and 332.
  • a direct current signal applied between the input terminal 301 and the input terminal 302 flows in the subsequent stage as it flows in the forward direction with respect to the diodes 331 and 332.
  • the rectified DC signal is subjected to voltage drop by resistors 341 and 342, and is further made constant voltage by a shunt regulator 342 to drive the transistors 351 and 352.
  • the photocoupler 361 is driven by the operation of the transistors 351 and 352. As a result, the input signal is transmitted to the control circuit 20.
  • the first terminal 321 and the second terminal 322 of the jumper switch 320 are short-circuited by a jumper pin, and DC power is supplied to the input terminal 302 via circuits such as resistors 342 and 342 and transistors 351 and 352. . Since a sensor, a switch element, or the like is connected between the input terminals 302 and 303, and the input terminal 303 is grounded, the transistors 351 and 352 operate according to the state of the sensor or the like. Since the photocoupler 361 is driven by the operation of the transistors 351 and 352, the status of the sensor or the like is transmitted to the control circuit 20 as an input signal.
  • FIG. 1 is a side sectional view of the remote monitoring and control apparatus 1
  • FIG. 5 is a top view of the interface circuit 300.
  • FIG. 1 is a side sectional view of the remote monitoring and control apparatus 1
  • FIG. 5 is a top view of the interface circuit 300.
  • the interface circuit 300 is mounted on the circuit board 150.
  • the circuit board 150 has a rectangular shape that is slightly smaller than the bottom surface of the housing body 110 of the first housing 100, and is attached to the bottom surface of the housing body 110 via a spacer.
  • a plurality of terminal blocks 151 are mounted on the edge of the circuit board 150 on the opening side. Each terminal block 151 has a plurality of terminals, and each terminal corresponds to the input terminals 301 to 303.
  • a jumper switch 320 is disposed in the vicinity of the terminal block 151 and on the partition plate 111 side. Further, resistors 341 and 342 and transistors 351 and 352 are mounted behind the jumper switch 320.
  • the resistors 341 and 342 and the transistors 351 and 352 are arranged on the side opposite to the opening of the housing body 110 with the partition plate 11 interposed therebetween.
  • the resistors 341 and 342 and the transistors 351 and 352 which are heat generating components, are separated from the opening by the partition plate 111. It is hidden. Accordingly, it is possible to prevent the operator from touching the heat-generating component when connecting the wiring to the terminal block 151 or operating the jumper switch 320.
  • the remote monitoring control device 1 As described above, according to the remote monitoring control device 1 according to the present invention, three input terminals are provided for each input channel, and a jumper pin is provided between the second terminal 322 and the third terminal 323 of the jumper switch 320. By short-circuiting, an AC output or DC output monitoring target device can be connected between the input terminal 301 and the input terminal 302. On the other hand, the first terminal 321 and the second terminal 322 of the jumper switch 320 are short-circuited by a jumper pin, so that a monitoring target device that requires a DC power source such as a sensor is connected between the input terminal 302 and the input terminal 303. It becomes possible. As described above, according to the remote monitoring and control apparatus 1 according to the present invention, various signals can be input through one input channel, so that downsizing and multi-channeling of the apparatus can be realized at low cost.
  • the remote monitoring and control device 1 it is possible to prevent the operator from touching the heat-generating parts such as resistors and transistors during the wiring work to the terminal block 151 and the operation of the jumper switch 320. Excellent in properties.
  • the rectifier circuit includes a pair of diodes 331 and 332, the constant voltage circuit includes a shunt regulator 343, and the detection circuit is implemented by a circuit including transistors 351 and 352 and a photocoupler 361.
  • the present invention can also be implemented by this circuit configuration.
  • an AC signal and a DC signal can be detected by a common terminal (first and second terminals), it is suitable as a remote monitoring and control device that can efficiently realize downsizing and multi-channeling.
  • SYMBOLS 10 Communication module, 20 ... Control circuit, 100 ... 1st housing

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Selective Calling Equipment (AREA)

Abstract

La présente invention concerne un dispositif de surveillance à distance et de télécommande capable de traiter divers types de signaux d'entrée. Un circuit d'interface (300) est équipé : d'un moyen de rectification (331, 332) qui rectifie un signal appliqué entre des terminaux d'entrée (301) et (302); d'un moyen de tension constante (343) qui abaisse le signal de sortie du moyen de rectification (331, 332) à une tension constante; et d'un moyen de détection (351, 352, 361) qui détecte le signal qui a été converti en une tension constante par le moyen de tension constante (343) et transmet ce signal à un circuit de commande.
PCT/JP2010/000035 2009-01-09 2010-01-06 Dispositif de surveillance à distance et de télécommande WO2010079742A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2009-003512 2009-01-09
JP2009003512A JP5341528B2 (ja) 2009-01-09 2009-01-09 遠隔監視制御装置

Publications (1)

Publication Number Publication Date
WO2010079742A1 true WO2010079742A1 (fr) 2010-07-15

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PCT/JP2010/000035 WO2010079742A1 (fr) 2009-01-09 2010-01-06 Dispositif de surveillance à distance et de télécommande

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WO (1) WO2010079742A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62201804U (fr) * 1986-06-14 1987-12-23
JPS6350118A (ja) * 1986-08-19 1988-03-03 Mitsubishi Electric Corp 接点信号入力回路
JP2005309744A (ja) * 2004-04-21 2005-11-04 Yokohama Tlo Co Ltd センサー制御システム及び汎用入出力制御装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4693894A (en) * 1986-01-16 1987-09-15 Ppg Industries, Inc. Halophor composition
JP2002163743A (ja) * 2000-11-22 2002-06-07 Shoei Denshi Kogyo Kk 遠隔監視システムおよび遠隔監視センタ装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62201804U (fr) * 1986-06-14 1987-12-23
JPS6350118A (ja) * 1986-08-19 1988-03-03 Mitsubishi Electric Corp 接点信号入力回路
JP2005309744A (ja) * 2004-04-21 2005-11-04 Yokohama Tlo Co Ltd センサー制御システム及び汎用入出力制御装置

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JP5341528B2 (ja) 2013-11-13
JP2010161707A (ja) 2010-07-22

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