KR101068504B1 - Type-r and type-gr fire alarm control panel system with optical repeaters - Google Patents

Abstract

The R-type / GR-type receiver system of the present invention includes a plurality of detectors / transmitters that emit an alarm signal, a plurality of disaster prevention facilities operating in accordance with a control signal, a plurality of optical repeaters, and a R-type / GR type receiver. Optical repeaters are connected to detectors / transmitters and disaster prevention facilities, daisy-chained with each other via optical cables to optically transmit alarm signals to Type R / GR receivers, and also to send control signals to Type R / GR receivers. It transmits optically downward from the camera, and electrically inputs and outputs an alarm signal for the detectors / transmitters and a control signal for the disaster prevention facilities, respectively. The R / GR type receiver may receive an alarm signal from one of the optical repeaters and transmit a control signal to the one of the optical repeaters.

Description

TYPE-R AND TYPE-GR FIRE ALARM CONTROL PANEL SYSTEM WITH OPTICAL REPEATERS}

The present invention relates to a fire reception system, and more particularly, to an R-type and GR-type receiver system.

The National Fire Safety Standards (NFSC) is a set of regulations that set fire safety standards. Among them, the fire safety standards of the NFSC 203 automated fire detection system specify the conditions that must be provided by the building's automated fire detection system.

According to NFSC 203, a detector is a device that can automatically detect a fire and send an alarm to a receiver, and a sender is a device for notifying a person when a fire is directly detected. Among the various transmitters, the P-type Class 1 transmitter has a response lamp to confirm that a person has sent it, and has a telephone function to allow communication between the receiver and the transmitter. The P-type Class 2 transmitter has a push button but no telephone function. . There are five types of receivers: P-type, R-type, M-type, GP-type, and GR-type. Among them, R-type and GR-type receivers are unique signals from multiple (more than 100 repeaters) detectors or P-type transmitters. A receiver configured to receive a notification and notify an interested party of an alert. Type R and GR receivers must be able to easily determine where the detector or transmitter is, and thus give each detector or transmitter a unique identification. It is unreasonable to connect detectors and transmitters installed in a large building directly to the receiver, and the repeater is required to receive alarm signals (including unique signals) from the detectors and transmitters and transmit them to the receiver.

A repeater is a device that transmits a signal generated by the operation of a detector or a transmitter to a receiver, and also transmits a control signal to a fire extinguishing facility, a smoke removal facility, or a disaster prevention facility. Thus, the repeater needs to have separate input and output channels between the receiver and the receiver.

In conventional R-type and GR-type receiver systems, a number of repeaters and R- / GR-type receivers are connected by RS485 or RS422. The RS485 / 422 standard is a differential method, which has a communication distance of about 1km and can connect about 127 or 255 repeaters when connected in a multi-drop method. It could cover a building. However, such a conventional R-type / GR-type receiver has many shortcomings in constructing a fire monitoring system incorporating a large apartment or campus buildings or building a fire monitoring system in a very large building.

In a realistic sense, fire monitoring systems built with RS485 / 422 wires frequently had false alarms and malfunctions, which often resulted in building managers turning off and leaving the monitoring system unattended. The practice of building a poorly performing fire surveillance system is seen as a formal procedure for obtaining building approval.

An object of the present invention is to provide a new R-type / GR-type receiver system that can overcome the limitation of the communication distance of the conventional R-type / GR-type receiver system and the number of repeaters that can be connected.

Furthermore, the present invention provides a reliable R-type / GR-type receiver system that overcomes the disadvantages of the conventional R-type / GR-type receiver system which is frequently malfunctioned.

Optical converter according to the present invention for solving the above problems,

An optical converter for daisy-chaining a plurality of detectors / transmitters or disaster prevention facilities and an R / GR receiver using an optical cable,

A first optical transceiving module for receiving an uplink optical signal transmitted from a daisy chain-connected next optical converter to convert the uplink optical signal into an uplink electrical signal, receiving the downlink electrical signal, converting the downlink optical signal, and outputting the downlink optical signal to the next optical converter;

A second optical transmission / reception module configured to receive a downlink optical signal transmitted from a daisy chain-connected previous photoconverter and convert the downlink optical signal into the downlink electrical signal, receive an uplink electrical signal, convert it into an uplink optical signal, and output the same to the previous photoconverter;

An upstream branch configured to output the uplink electrical signal electrically coupled to an uplink electrical signal output from the first optical transceiver module and an alarm signal derived from a detector or a transmitter;

A down branch for providing a downlink electrical signal output from the second optical transceiver module to an input / output port and the first optical transceiver module; And

It may include an input and output port for providing the alarm signal received from the detector or the transmitter to the upstream branch, and receives the downlink electrical signal to output to the outside.

Preferably, the upward branch may be a tap connecting the output wire of the first optical transceiver module and the wire through which the alarm signal is transmitted.

Preferably, the upstream branch is adjusted to sequentially output two signals by delaying any one signal when the uplink electrical signal output from the first optical transceiver module and an alarm signal originating from the detector or the transmitter are simultaneously received. May be a circuit.

Preferably, when the upstream branch receives the uplink electrical signal output from the first optical transmission / reception module and an alarm signal originating from the detector or the transmitter at the same time, the uplink branch is encoded into one packet and outputs the uplink electrical signal. It may be a packet encoder.

Preferably, the input and output port,

An input port for receiving a differential signal of RS485 or RS422 standard or a DC 24V DC signal from the detector or transmitter, converting the signal into a single-ended alarm signal, and providing the signal to the upstream branch; And

It may include an output port for converting the downlink electrical signal to a differential signal of the RS485 or RS422 standard or a DC signal of DC 24V to output to the outside.

Preferably, the downward branch may be a tap connected to an output wire of the second optical transceiver module and a wire for transmitting the downward electric signal to the input / output port.

Preferably, the downward branch may include a detection circuit that detects a control signal to be transmitted to one of the disaster prevention facilities from the downward electrical signal output from the second optical transceiver module and outputs the control signal to the input / output port.

Optical repeater according to an embodiment of the present invention,

An optical repeater for daisy-chaining a plurality of detectors / transmitters or disaster prevention facilities and an R / GR type receiver using an optical cable,

A first optical transmission / reception module that receives an uplink optical signal transmitted from a daisy chain-connected next optical repeater, converts the uplink optical signal into an uplink electrical signal, receives the downlink electrical signal, converts the downlink optical signal, and outputs the downlink optical signal to the next optical converter;

A second optical transmission / reception module configured to receive a downlink optical signal transmitted from a daisy-chained previous optical repeater, convert the downlink optical signal into the downlink electrical signal, receive an uplink electrical signal, convert it into an uplink optical signal, and output the same to the previous photoconverter;

An upstream branch configured to output the uplink electrical signal electrically coupled to an uplink electrical signal output from the first optical transceiver module and an alarm signal derived from a detector or a transmitter;

A down branch for providing a downlink electrical signal output from the second optical transceiver module to a relay controller and the first optical transceiver module;

A relay control unit providing the received alarm signal to the upstream branch and extracting and outputting a control signal from the downlink electrical signal; And

The controller may include the input / output port for receiving the alarm signal from the detector or transmitters and providing the alarm signal to the relay controller, and receiving the control signal from the relay controller and outputting the control signal to the outside.

Preferably, the upward branch may be a tap connecting an output wire of the first optical transceiver module and a wire through which the alarm signal is transmitted from the relay controller.

Preferably, the upstream branch transmits the uplink electrical signal output from the first optical transceiver module to the relay controller, receives the uplinked electrical signal from the relay controller, and transmits the uplink electrical signal to the second optical transceiver module. ,

The relay controller may be configured to generate and output the uplink electrical signal by combining the alarm signal and the uplink electrical signal.

Preferably, the upstream branch sequentially outputs two signals by delaying any one signal when the uplink electrical signal output from the first optical transceiver module and the alarm signal originating from the detector or the transmitter are simultaneously received. It can be an adjustment circuit.

Preferably, the upstream branch may be a packet encoder that encodes and outputs one packet when simultaneously receiving an electrical signal output from the first optical reception module and an alarm signal originating from a detector or a transmitter.

Preferably, the downward branch may be a tap connecting the output wire of the second optical transceiver module and the wire connected to the relay controller.

Preferably, the input and output port,

An input port for receiving a differential signal of RS485 or RS422 standard or a DC 24V DC signal from the detector or transmitter, converting the signal into a single-ended alarm signal, and providing the signal to the relay controller; And

It may include an output port for converting the control signal output from the relay control unit to a differential signal of RS485 or RS422 standard or a DC signal of DC 24V to output to the outside.

An R-type / GR-type receiver system according to an embodiment of the present invention,

A number of sensors / transmitters that issue an alarm signal;

A plurality of disaster prevention facilities operating in accordance with the control signal;

A plurality of repeaters connected to the detector / senders and disaster prevention facilities;

Daisy chained together via an optical cable to optically transmit the alert signal to the R / GR receiver optically, and also to transmit the control signal optically from the R / GR receiver optically and to the repeaters. A plurality of optical converters capable of electrically inputting and outputting the alarm signal and the control signal, respectively; And

And an R-type / GR-type receiver that receives the alert signal from one of the photoconverters and transmits the control signal to the one of the photoconverters.

Preferably, the apparatus may further include a single-port photoconverter optically connected to the one of the photoconverters and electrically connected to the R-type / GR-type receiver.

An R-type / GR-type receiver system according to another embodiment of the present invention,

A number of sensors / transmitters that issue an alarm signal;

A plurality of disaster prevention facilities operating in accordance with the control signal;

Connected to the detector / transmitters and disaster prevention facilities, daisy-chained with each other via an optical cable to optically transmit the alarm signal to an R-type / GR-type receiver, and also to transmit the control signal to the R-type / GR type A plurality of optical repeaters optically transmitted from the receiver and capable of electrically inputting and outputting the alarm signal to the sensors / transmitters and the control signal to the disaster prevention facilities respectively; And

And an R-type / GR-type receiver for receiving the alarm signal from one of the optical repeaters and transmitting the control signal to the one of the optical repeaters.

Preferably, the optical repeater may further include a single port optical converter which is optically connected to the one of the optical repeaters and electrically connected to the R-type / GR-type receiver.

According to the present invention, it is possible to communicate at a much longer distance than the conventional R- / GR-type receiver system, and can connect up to 65535 repeaters, so that not only one building with one R-type receiver, A fire surveillance system can be built for the entire complex or the entire skyscraper.

According to one embodiment of the present invention, while using a conventional repeater, detector, and transmitter as it is, it is possible to greatly expand the capacity of the R-type / GR-type receiver system.

Furthermore, embodiments of the present invention can greatly reduce the error rate and build a reliable R-type / GR-type receiver system.

1 is a block diagram schematically illustrating an optical relay type R / GR receiver system according to an exemplary embodiment of the present invention.
2A, 2B and 2C are exemplary block diagrams illustrating a two-way optical repeater that may be used in the optical relay type R / GR receiver system of FIG.
3 is a block diagram illustrating an optical input / output port that may be used in the optical relay type R / GR receiver system of FIG. 1.
4 is a block diagram schematically illustrating an optical relay type R / GR receiver system according to another exemplary embodiment of the present invention.
5A and 5B are exemplary block diagrams illustrating a two-way photoconverter that may be used in the optical relay R / GR receiver system of FIG. 4.
6 is a block diagram illustrating a single port photoconverter that may be used in the optical relay type R / GR receiver system of FIG.

With respect to the embodiments of the present invention disclosed in the text, specific structural to functional descriptions are merely illustrated for the purpose of describing embodiments of the present invention, embodiments of the present invention may be implemented in various forms and It should not be construed as limited to the embodiments described in.

Hereinafter, with reference to the accompanying drawings, it will be described in detail a preferred embodiment of the present invention. The same reference numerals are used for the same constituent elements in the drawings and redundant explanations for the same constituent elements are omitted. With regard to the reference numeral, the leftmost digit of the reference numeral may refer to the number of the figure in which the object indicated by the reference numeral first appears.

1 is a block diagram schematically illustrating an optical relay type R / GR receiver system according to an exemplary embodiment of the present invention.

1, the optical relay type R / GR receiver system 10 includes an R type / GR type receiver 11, an optical cable 12, an optical repeater 13a, 13b, ..., 13n, a detector or It may include a transmitter 14, disaster prevention equipment (15). Optical repeaters 13a, 13b, ..., 13n are connected in a daisy chain format.

Specifically, the R-type / GR-type receiver 11 includes a control unit 111, an operation check unit 112, a display unit 113, a network interface 114, and an optical input / output port 115. The control unit 111 controls operations such as reception and control of an alarm signal, identification of a repeater and a transmitter that generated the alarm signal, and communication between a control center (not shown). The operation check unit 112 may test whether the repeaters and the lines connected to the receiver operate normally. The display unit 113 may include a display, an LED lamp, a speaker, and the like, and may visually or audibly display an alarm state and an operation state. The network interface 114 performs communication with the control center. In some embodiments, storage may be added to accumulate and store operation information.

The optical input / output port 115 of the R-type / GR-type receiver 11 receives an alarm signal generated by the detector or the transmitter 14 in the form of an uplink optical signal through the optical cable 12 and converts it into an electrical signal to control the unit 111. In addition, the control signal provided to be transmitted from the control center to each disaster prevention facility may be received from the control unit 111, converted into a downlink optical signal, and then transmitted through the optical cable 12.

The path that propagates the control signal originating from the R-type / GR-type receiver 11 through each optical repeater 13 to the disaster prevention facility 15 is a downstream signal path and originated from the detector or the transmitter 14. The path for propagating the alarm signal through the optical repeater 13 to the R-type / GR-type receiver 11 may be referred to as an upstream signal path.

Depending on the embodiment, the R- / GR-type receiver 11 may have an RS485 or RS422 input / output port as in the conventional case, in which case the optical input / output port 115 is a separate device, for example a single port photoconverter. It is configured as, can be mounted so as to be connected to the RS485 / 422 input and output port from the outside of the R / GR type receiver 11, converts the uplink optical signal to RS485 / 422 signal to the R / GR type receiver 11 Alternatively, the RS485 / 422 differential signal output from the R / GR type receiver 11 may be converted into a downlink optical signal and transmitted.

The optical cable 12 is a medium for transmitting an uplink optical signal including an alarm signal directed to the R-type / GR-type receiver 11 and a downward optical signal including a control signal output from the R-type / GR-type receiver 11. to be. The uplink optical signal and the downlink optical signal may be optical signals having different frequencies or optical signals encoded by different channel coding schemes.

The optical repeaters 13a, 13b, ..., 13n are optically connected to each other via an optical cable 12, and also electrically connected to one or more detectors or transmitters 14, respectively. The detectors or transmitters 14 can be grouped, for example, into one business compartment, one floor, etc. in a building, and connected to one optical repeater 13 by a simple direct current signal line or RS485 / 422 wire. Optical repeaters 13a, 13b, ..., 13n are for example fire fighting equipment such as fire hydrants, sprinklers, halogen fire extinguishers and fire protection equipment such as dampers, fire doors, fire shutters, flue windows, and other disaster prevention equipment such as evacuation induction lamps ( 15) can be electrically connected.

The optical repeaters 13a, 13b, ..., 13n are connected in a daisy chain manner, so that the alarm signal generated from the next sequence of the optical repeater 13 or the alarm signal generated by the detectors or the transmitters 14 can be obtained. Optionally or in combination with the received alarm signals are delivered to the forward repeater (13). Also, the optical repeaters 13a, 13b,..., 13n have a control signal transmitted from the R- / GR-type receiver 11 or a control signal transmitted through the preceding optical repeater 13. To deliver to the fire, smoke and other disaster prevention equipment (15), or to the next repeater (13).

The optical repeaters 13a, 13b, ..., 13n of the present invention may be optically connected to other optical repeaters 13 and may be electrically connected to a detector or transmitter 14 or disaster prevention equipment. In other words, the optical repeater 13 converts the received optical signal into an electrical signal and processes it, and converts the processed electrical signal into an optical signal and outputs the converted optical signal.

The detector or transmitter 14 may be a conventional fire, smoke, heat or gas detector or a button type transmitter in which a person directly presses a button to generate an alarm. The detector or transmitter 14 may generate an electrical alert signal and transmit it to the optical repeater 13. Commercially readily available detectors or transmitters 14 may generate an alarm signal in the form of a differential signal typically defined in RS485 / 422. In this case, the optical repeaters 13 may also have an RS485 / 422 input / output port to receive an alarm signal. Another type of commercially readily available detector or transmitter 14 can generate an alarm signal in the form of a single-ended DC signal of DC 24V. In this case, the optical repeaters 13 may also have a DC input / output port to receive the alarm signal.

According to the embodiment, the detector or transmitter 14 also outputs an alarm signal as an optical signal, and may be connected to the optical repeater 13 through an optical cable.

2A, 2B, and 2C are block diagrams illustrating a two-way optical repeater that may be used in the optical relay type R / GR receiver system of FIG.

2A, 2B, and 2C, the optical repeater 13 may include a first optical transceiver module 131, a second optical transceiver module 132, an up branch 133, a downward branch 134, and a relay controller. 135, an input / output port 136 may be included. 2A, 2B, and 2C, the up branch 133 and the down branch 134 have different structures, and the remaining components of the optical repeater 13 may be considered to be substantially the same.

The first and second optical transceiving modules 131 and 132 may transmit and receive optical signals in both directions through one optical cable 12. The frequency of the optical signal transmitted from the bidirectional optical transceiver module and the received optical signal may be different. The optical transceiver module illustrated in FIG. 2 separates an optical signal to be transmitted and an optical signal to be received by using a waveguide and a dielectric reflector divided into Y-branches. In the case of transmission, an optical signal generated by an optical transmission unit made of a laser diode or the like is guided through the waveguide to the optical cable. In the case of reception, the optical signal incident on the optical cable propagates through the waveguide, is reflected by the dielectric reflector, and is led to the optical receiving unit.

The optical receiving unit of the first optical transmitting / receiving module 131, the uplink branch 132, and the optical transmitting unit of the second optical transmitting / receiving module 132 constitute an uplink signal path, and an alarm signal transmitted from another optical repeater and the corresponding optical signal. The alarm signal input from the detector or transmitter 14 connected to the repeater 13 is transmitted to the R-type / GR-type receiver 11. On the other hand, the optical receiving unit of the second optical transmitting and receiving module 132, the down branch 134, the optical transmitting unit of the first optical transmitting and receiving module 131 constitute a downlink signal path, the R-type / GR-type receiver 11 The control signal resulting from the is transmitted to the other optical repeater 13 and the relay control unit 135.

The relay control unit 135 determines whether the alarm signal transmitted from the detector or the transmitter 14 is an appropriate signal and transmits it to the upstream branch 133. In addition, the relay control unit 135 determines whether the control signal transmitted from the downward branch 134 is related to the disaster prevention equipment connected to the optical repeater 13 and if the control signal is connected to the disaster prevention equipment connected to the optical repeater 13. If it is, send it to the disaster prevention facility.

The relay controller 135 and the detector or transmitter 14 may be connected to the RS485 / 422 standard or the DC 24V signal line through the input / output port 136. According to an embodiment, the input / output port 136 may be an optical input / output port, in which case it may be connected to the detector or the transmitter 14 by an optical cable.

Specifically, the optical receiving unit of the first optical transceiver module 131 receives an uplink optical signal transmitted through an optical cable from another optical repeater, and converts the received uplink optical signal into an electrical uplink electrical signal. The upstream branch 133 combines the alarm signal generated by the detector or the transmitter 14 and transmitted through the relay control unit 135 with the uplink electrical signal converted by the light receiving unit of the first optical transmission / reception module 131. The combined electrical signal is transmitted to the optical transmission unit of the second optical transmission / reception module 132. The second optical transmission / reception module 132 converts the received uplink electrical signal into an uplink optical signal and outputs the optical signal.

The up branch 133 may be implemented in various configurations. 2A, in one embodiment, the upward branch 133 may simply be a tap connecting two conductors. In this case, the structure of the upstream branch 133 is simple, but if an alarm signal generated by the detector or the transmitter 14 and an alarm signal coming from another repeater 13 are simultaneously applied, a collision may occur.

Referring to FIG. 2B, in another embodiment, the up branch 133 electrically connects the light receiving unit of the first optical transmission / reception module 131 and the relay control unit 135, and also the relay control unit 135 and the second control unit 135. The optical transmission unit of the optical transmission and reception module 132 may be connected to electrically connect. In this case, the uplink signal transmitted from another optical repeater 13 is transmitted to the relay control unit 135 through the wiring of the upstream branch 133, and the relay processing unit 135 processes the uplink electrical signal and the alarm signal. The processed coupling electrical signal is transmitted to the optical transmission unit of the second optical transmission / reception module 132 through the wiring of the upstream branch 133.

Referring to FIG. 2C, the upstream branch 133 is implemented as an adjustment circuit so that, for example, when alarm signals are simultaneously applied from another repeater 13 and a detector or transmitter 14, one signal is preferentially outputted and the other signal is transmitted. May be output after a predetermined delay time to prevent a collision, or may be implemented as a packet encoder, for example, encoded into a packet loaded with two alarm signals in one payload and then output. The downward branch 134 may be implemented as a detection circuit for extracting a control signal to be sent to the disaster prevention facility connected to the corresponding optical repeater 13.

Meanwhile, the optical reception unit of the second optical transmission / reception module 132 receives the downlink optical signal through which the control signal originating from the R-type / GR-type receiver 11 is transmitted through the optical cable, and receives the received downlink optical signal electrically. Convert to a downward electrical signal. The downward electrical signal is a signal substantially the same as the control signal originating from the R-type / GR-type receiver 11. The downward branch 134 transmits the downward electrical signal to the optical transmission unit of the relay control unit 135 and the first optical transmission / reception module 131, respectively. The optical transmission unit of the first optical transmission / reception module 131 converts the received downlink electrical signal into a downlink optical signal and outputs the downlink optical signal to the optical cable 12.

The downward branch 134 may be implemented in various configurations. 2A, in one embodiment, the downward branch 1354 may simply be a tap. In this case, the control signal, which is a downward electrical signal, may be transmitted to the optical transmission unit and the relay control unit 135 of the first optical transmission / reception module 131. Delivered.

Referring to FIG. 2B, in another embodiment, the downward branch 134 electrically connects the light receiving unit of the second optical transmission / reception module 132 and the relay control unit 135, and also the relay control unit 135 and the first control unit 135. The optical transmission and reception module 131 may be connected to electrically connect the optical transmission unit. In this case, the control signal in the downlink electrical signal transmitted from the other optical repeater 13 is transmitted to the relay control unit 135 through the connection of the downlink branch 134. When the relay processing unit 135 properly processes and outputs the received control signal, the processed control signal is transmitted to the optical transmission unit of the first optical transmission / reception module 131 through the connection of the downward branch 134. In this case, the relay processor 135 may output the received control signal as it is, or may generate and output the control signal from which the portion related to the optical repeater 13 is removed.

Referring to FIG. 2C, the downward branch 134 may be implemented as a detection circuit, for example, to transmit the control signal to the relay control unit 135 only when there is a control signal corresponding to the corresponding optical repeater 13 among the applied control signals. If not, the control signal may be transmitted to the optical transmission unit of the second optical transmission / reception module 131.

3 is a block diagram illustrating an optical input / output port that may be used in the optical relay type R / GR receiver system of FIG. 1.

Referring to FIG. 3, the optical input / output port 115 includes an optical transmission / reception module 1151. The optical transmission unit of the optical transmission / reception module 1151 converts the electrical control signal of the R-type / GR-type receiver 11 into a downlink optical signal and outputs it. The optical reception unit of the optical transmission / reception module 1151 receives an uplink optical signal including an alarm signal, converts it into an electrical signal, and provides it to the R-type / GR-type receiver 11.

4 is a block diagram schematically illustrating an optical relay type R / GR receiver system according to another exemplary embodiment of the present invention.

4, the optical relay type R receiver system 40 includes an R type / GR type receiver 11, a single port optical converter 41, an optical cable 12, two-way port optical converters 43a, 43b, 43n), repeaters 44a, 44b, ..., 44n, detectors or transmitters 14. The photoconverters 43a, 43b, ..., 43n are connected in a daisy chain form.

The R type / GR type receiver 11 includes a control unit 111, an operation check unit 112, a display unit 113, a network interface 114, and an input / output port 116, and the R type / GR type of FIG. Since it is substantially similar to the receiver 11, description thereof will be omitted. However, the input / output port 116 is an element corresponding to the optical input / output port 115 that inputs / outputs an optical signal in FIG. 1, and inputs and outputs an electrical signal in RS485 / 422 standard in FIG. 4.

The single port optical converter 41 is connected between the input / output port 116 of the R-type / GR-type receiver 11 and the optical cable 12 to electrically transmit an alarm signal in the form of an uplink optical signal received through the optical cable 12. Converts the signal into an input / output port 116 of the R / GR type receiver 11, converts the control signal output from the input / output port 116 of the R / GR type receiver 11 into a downlink optical signal, and Output through the optical cable (12).

The two-way port optical converter 43 may perform signal transmission between the two repeaters 44 or the signal between the repeater 44 and the receiver 11 via the optical cable 12, and also the repeater 44. And can be connected by RS485 / 422 communication to transmit alarm signal.

The repeater 44 may be a conventional repeater using the RS485 / 422 communication standard, and the detector or transmitter 14 may also be a conventional detector or transmitter.

5A and 5B are block diagrams illustrating a two-way port optical repeater that may be used in the optical relay type R / GR receiver system of FIG.

5A and 5B, the two-way optical converter 43 may include a first optical transmission / reception module 431, a second optical transmission / reception module 432, an up branch 433, a downward branch 434, and an input / output port. 435 may be included. 5A and 5B, except for the structure of the up branch 433 and the down branch 434, the remaining components of the two-way photoconverter 43 may be considered to be substantially the same.

The light receiving unit of the first optical transmission / reception module 431, the uplink 433, and the optical transmission unit of the second optical transmission / reception module 432 constitute an uplink signal path. The light receiving unit of the second optical transmitting and receiving module 432, the down branch 434, and the optical transmitting unit of the first optical transmitting and receiving module 431 constitute a downlink signal path.

The input / output port 435 converts an RS485 / 422 standard alarm signal or a DC 24V DC signal input from the detector or the transmitter 14 through the repeater 44 into a single-ended signal suitable for converting an optical signal into an upward branch. Forward to (433). In addition, the input / output port 435 converts the single-ended control signal transmitted from the downward branch 434 into a control signal of RS485 / 422 standard or a DC signal of DC 24V and outputs the converted signal.

Specifically, the optical receiving unit of the first optical transceiver module 431 receives an uplink optical signal transmitted through the optical cable 12 from another optical repeater, and converts the received uplink optical signal into an electrical uplink electrical signal. . The up branch 433 combines the alarm signal generated by the detector or transmitter 14 and transmitted through the input / output port 435 with the uplink electrical signal converted by the light receiving unit of the first optical transmission / reception module 431. The combined uplink electrical signal to the optical transmission unit of the second optical transmission / reception module 432. The optical transmission unit of the second optical transmission / reception module 432 converts the received uplink electrical signal into an uplink optical signal and outputs it to the optical cable 12.

The up branch 433 may be implemented in various configurations. Referring to FIG. 5A, in one embodiment, the up branch 433 may simply be a tap. In this case, the structure of the up-branch 433 is simple, but if the alarm signal generated by the detector or the transmitter 14 and transmitted through the repeater 44 and the alarm signal transmitted from the other light converter 43 are simultaneously applied. A crash can occur.

Referring to FIG. 5B, the up branch 433 may be implemented as an adjustment circuit so that, for example, when two alarm signals are applied at the same time, one signal is preferentially output and the other signal is output after a predetermined delay time to prevent a collision. Alternatively, the packet encoder may be implemented as a packet encoder, for example, after encoding two alarm signals in one payload, and then outputting the packet.

Meanwhile, the optical reception module of the second optical transmission / reception module 432 includes a control signal transmitted through another two-way optical converter 43 and the optical cable 12 due to the R-type / GR-type receiver 11. Receives the downlink optical signal, and converts the received downlink optical signal into an electrical downlink electrical signal. The downward branch 434 transfers the control signal originating from the R / GR receiver 11 to the optical transmission unit of the input / output port 435 and the first optical transmission / reception module 431, respectively. The optical transmission unit of the first optical transmission / reception module 431 converts the received downlink electrical signal into a downlink optical signal and outputs it to the optical cable 12.

The downward branch 434 may be implemented in various configurations. Referring to FIG. 5A, in one embodiment, the downward branch 434 may simply be a tab. In this case, the control signal is transmitted to the optical transmission unit and the input / output port 435 of the first optical transmission / reception module 431.

Referring to FIG. 5B, in another embodiment, the down branch 434 is implemented as a detection circuit, for example, only when there is a control signal corresponding to the corresponding 2-way photoconverter 43 among the applied control signals. The signal may be transmitted to the input / output port 435, or the control signal may be transmitted only to the optical transmission unit of the first optical transmission / reception module 431.

6 is a block diagram illustrating a single port photoconverter that may be used in the optical relay type R / GR receiver system of FIG.

Referring to FIG. 6, the single port optical converter 41 includes an optical transmission / reception module 411 and an input / output port 412. The input / output port 412 converts the RS485 / 422 standard differential control signal provided from the R-type / GR-type receiver 11 into a single-ended control signal. The optical transmission / reception module 411 converts the single-ended control signal into a downlink optical signal and converts an alarm signal of the uplink optical signal into an electrical single-ended alarm signal and provides it to the input / output port 412. The input / output port 412 converts the single-ended alarm signal into a differential alarm signal of RS485 / 422 standard and provides it to the R-type / GR-type receiver 11.

As described above, although the present invention has been described by way of limited embodiments and drawings, the present invention is not limited to the above-described embodiments, which can be modified by those skilled in the art to which the present invention pertains. Modifications are possible. Accordingly, the spirit of the invention should be understood only by the claims set forth below, and all equivalent or equivalent modifications will fall within the scope of the invention.

11 Type R / GR Receiver
12 optical cable
13 optical repeater
14 detector or transmitter
15 Disaster Prevention Equipment
43 light converter
131, 132, 431, 432 Bidirectional Optical Transceiver Module
133, 433 upward branch
134, 434 downward branch
135, 435 relay control unit
136, 436 I / O Ports

Claims (18)

An optical converter for daisy-chaining a plurality of detectors / transmitters or disaster prevention facilities and an R / GR receiver using an optical cable,
A first optical transceiving module for receiving an uplink optical signal transmitted from a daisy chain-connected next optical converter to convert the uplink optical signal into an uplink electrical signal, receiving the downlink electrical signal, converting the downlink optical signal, and outputting the downlink optical signal to the next optical converter;
A second optical transmission / reception module configured to receive a downlink optical signal transmitted from a daisy chain-connected previous photoconverter and convert the downlink optical signal into the downlink electrical signal, receive an uplink electrical signal, convert it into an uplink optical signal, and output the same to the previous photoconverter;
An upstream branch configured to output the uplink electrical signal electrically coupled to an uplink electrical signal output from the first optical transceiver module and an alarm signal derived from a detector or a transmitter;
A down branch for providing a downlink electrical signal output from the second optical transceiver module to an input / output port and the first optical transceiver module; And
And an input / output port configured to provide the alarm signal received from the detector or transmitters to the upstream branch, and to receive the downlink electrical signal and output the external signal. The optical converter according to claim 1, wherein the up branch is a tap connecting an output wire of the first optical transceiver module and a wire through which the alarm signal is transmitted. The method of claim 1, wherein the upstream branch sequentially outputs two signals by delaying one signal when the uplink electrical signal output from the first optical transceiver module and the alarm signal originating from the detector or the transmitter are simultaneously received. An optical converter, characterized in that the control circuit. The method of claim 1, wherein the upstream branch is encoded into one packet when the uplink electrical signal output from the first optical transceiver module and the alarm signal originating from the detector or the transmitter are simultaneously encoded and output as the uplink electrical signal. An optical converter, characterized in that the packet encoder. The method according to claim 1, wherein the input and output port,
An input port for receiving a differential signal of RS485 or RS422 standard or a DC 24V DC signal from the detector or transmitter, converting the signal into a single-ended alarm signal, and providing the signal to the upstream branch; And
And an output port converting the downlink electrical signal into a differential signal of RS485 or RS422 standard or a DC signal of DC 24V and outputting the signal to the outside. The optical converter according to claim 1, wherein the downward branch is a tap connected between an output wire of the second optical transceiver module and a wire for transmitting the downward electric signal to the input / output port. The apparatus of claim 1, wherein the downward branch includes a detection circuit configured to detect a control signal to be transmitted to one of the disaster prevention facilities among the downward electrical signals output from the second optical transceiver module, and output the detected control signal to the input / output port. Photoconverter. An optical repeater for daisy-chaining a plurality of detectors / transmitters or disaster prevention facilities and an R / GR type receiver using an optical cable,
A first optical transmission / reception module that receives an uplink optical signal transmitted from a daisy chain-connected next optical repeater, converts the uplink optical signal into an uplink electrical signal, receives the downlink electrical signal, converts the downlink optical signal, and outputs the downlink optical signal to the next optical converter;
A second optical transmission / reception module configured to receive a downlink optical signal transmitted from a daisy-chained previous optical repeater, convert the downlink optical signal into the downlink electrical signal, receive an uplink electrical signal, convert it into an uplink optical signal, and output the same to the previous photoconverter;
An upstream branch configured to output the uplink electrical signal electrically coupled to an uplink electrical signal output from the first optical transceiver module and an alarm signal derived from a detector or a transmitter;
A down branch for providing a downlink electrical signal output from the second optical transceiver module to a relay controller and the first optical transceiver module;
A relay control unit providing the received alarm signal to the upstream branch and extracting and outputting a control signal from the downlink electrical signal; And
And an input / output port configured to receive the alarm signal from the detector or transmitters and provide the alarm signal to the relay controller, and receive the control signal from the relay controller and output the control signal to the outside. The optical repeater of claim 8, wherein the up branch is a tap connecting an output lead of the first optical transceiver module and a conductor through which the alarm signal is transmitted from the relay controller. The method of claim 8, wherein the uplink branch is to transmit the uplink electrical signal output from the first optical transmission and reception module to the relay control unit, receives the uplink electrical signal from the relay control unit and transmits to the second optical transmission and reception module. ,
And the relay controller is configured to generate and output the uplink coupled signal by combining the alarm signal and the uplink electrical signal. The method according to claim 8, wherein the up-branch outputs two signals sequentially by delaying any one signal when the uplink electrical signal output from the first optical transceiver module and the alarm signal originating from the detector or the transmitter are simultaneously received. An optical repeater, characterized in that the adjustment circuit. The optical uplink according to claim 8, wherein the uplink branch is a packet encoder that encodes and outputs one packet when simultaneously receiving an electrical signal output from the first optical reception module and an alarm signal from a detector or a transmitter. Repeater. The optical repeater according to claim 8, wherein the downward branch is a tap connecting an output lead of the second optical transceiver module and a lead connected to the relay controller. The method of claim 8, wherein the input and output port,
An input port for receiving a differential signal of RS485 or RS422 standard or a DC 24V DC signal from the detector or transmitter, converting the signal into a single-ended alarm signal, and providing the signal to the relay controller; And
And an output port converting the control signal output from the relay control unit into a differential signal of RS485 or RS422 standard or a DC signal of DC 24V and outputting the signal to the outside. A number of sensors / transmitters that issue an alarm signal;
A plurality of disaster prevention facilities operating in accordance with the control signal;
A plurality of repeaters connected to the detector / senders and disaster prevention facilities;
Daisy chained together via an optical cable to optically transmit the alert signal to the R / GR receiver optically, and also to transmit the control signal optically from the R / GR receiver optically and to the repeaters. A plurality of optical converters capable of electrically inputting and outputting the alarm signal and the control signal, respectively; And
An R-type / GR-type receiver system that receives the alert signal from one of the photoconverters and transmits the control signal to the one of the photoconverters. The method according to claim 15,
And a single port photoconverter optically connected to the one of the photoconverters and electrically connected to the R / GR receiver. A number of sensors / transmitters that issue an alarm signal;
A plurality of disaster prevention facilities operating in accordance with the control signal;
Connected to the detector / transmitters and disaster prevention facilities, daisy-chained with each other via an optical cable to optically transmit the alarm signal to an R-type / GR-type receiver, and also to transmit the control signal to the R-type / GR type A plurality of optical repeaters optically transmitted from the receiver and capable of electrically inputting and outputting the alarm signal to the sensors / transmitters and the control signal to the disaster prevention facilities respectively; And
An R-type / GR-type receiver that receives the alert signal from one of the optical repeaters and transmits the control signal to the one of the optical repeaters. 18. The method of claim 17,
And a single port optical converter optically connected to said one of said optical repeaters and electrically connected to said R-type / GR-type receiver.

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