CN113129536A - Fire alarm control system with synchronous system - Google Patents
Fire alarm control system with synchronous system Download PDFInfo
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- CN113129536A CN113129536A CN201911411464.0A CN201911411464A CN113129536A CN 113129536 A CN113129536 A CN 113129536A CN 201911411464 A CN201911411464 A CN 201911411464A CN 113129536 A CN113129536 A CN 113129536A
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
- G08B29/16—Security signalling or alarm systems, e.g. redundant systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/40006—Architecture of a communication node
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40208—Bus networks characterized by the use of a particular bus standard
- H04L2012/40215—Controller Area Network CAN
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Abstract
The invention discloses a system-synchronous fire alarm control system, which comprises a main controller, a sub-controller and a loop unit, wherein the main controller is connected with the sub-controller; the main controller and the auxiliary controller are in communication connection with the loop unit through buses, the main controller and the auxiliary controller are in bus connection, the main controller and the auxiliary controller are in real-time communication connection through buses, system parameters between the main controller and the auxiliary controller are synchronous through bus configuration, and the main controller and the auxiliary controller are electrically connected with the instrument assembly and the alarm. According to the technical scheme, when the two machines monitor the same return line, 2 controllers are respectively used as a host machine and a standby machine, display information of the host machine and the standby machine is synchronous in real time, when system parameters are set at one end of the host machine or the standby machine, the configuration of the other machine is also synchronously modified, and the system parameters comprise the current alarm state, the loop configuration, the time and the like of the system.
Description
Technical Field
The invention relates to the field of fire alarm controllers, in particular to a system-synchronous fire alarm control system.
Background
The traditional locomotive alarm control system is a loop matched and connected with 1 controller, and further requirements for networking communication of the detection host computer are met along with development of the Internet of things. When the two controllers are relatively far to face, an operator needs to go to the other controller for secondary setting after modifying system parameters on any one controller, which is very inconvenient.
Aiming at the defects in the prior art, the invention provides a technical scheme for monitoring one line by two controllers.
Disclosure of Invention
The invention provides a fire alarm control system with system synchronization, which is characterized in that data transmission is carried out by means of a CAN bus or a 485 bus, after the system parameters of one alarm controller change, new system parameters are sent to the other controller through the CAN bus or the 485 bus, and the other controller updates the parameters of the system in real time after receiving the system parameters, so that the configuration synchronization is realized.
The invention is realized in this way, a fire alarm control system with system synchronization, which comprises a main controller, a sub-controller and a loop unit;
the main controller is used for monitoring the loop unit, receiving monitoring information of the loop unit and sending command signals to each unit through command signals obtained after processing and analyzing the monitoring information;
the sub-controller is used for monitoring the loop unit, receiving monitoring information of the loop unit, sending command signals to each unit through command signals obtained after processing and analyzing the monitoring information, and starting to work when the main controller does not work;
the loop unit is used for monitoring the fire information of the locomotive, sending the fire information to the main controller and the auxiliary controller when the locomotive generates the fire information;
the main controller and the sub-controller are in communication connection with the plurality of loop units through buses, the main controller and the sub-controller are connected through bus real-time communication, system parameters between the main controller and the sub-controller are synchronous through bus configuration, and the main controller and the sub-controller are electrically connected with the instrument assembly and the alarm.
Further, the bus is a CAN bus unit or an RS485 bus unit.
Furthermore, the RS485 bus unit is composed of a U6 module, a resistor, a capacitor, a discharge tube, a fuse, a bidirectional breakdown diode, a transformer, a connector, a female socket plug-in and SIP packaging; a No. 1 port VCC1 of the U6 module is connected with a power supply VCC5-2, a capacitor C24 is connected with a capacitor C36 in parallel, after the parallel connection, one end of the capacitor C24 is connected with a No. 1 port VCC1, the other end of the capacitor C24 is grounded GND, a No. 3 port R is connected with a terminal R through a resistor R14, a No. 4 port/RE and a No. 5 port DE are connected with a DE-/RE terminal through a resistor R15, a No. 6 port D is connected with a D terminal through a resistor R20, a No. 8 port GND1 is grounded GND, a No. 9 port GND2, a No. 10 port GND2 and a No. 15 port GND2 are grounded 485_ GND-2, a No. 12 port A is connected with a 485A line; the 485A line is grounded to 485_ GND-2 through a resistor R23, a connector JP6 and a capacitor C31, the 485B line is grounded to 485_ GND-2 through a resistor R22, a connector JP5 and a capacitor C31, and the 485A line and the 485B line are respectively connected with a 485A-1 line and a 485B-1 line; the 485A-1 line is connected with the 485A-2 line through a No. 1 terminal of a transformer L5, a No. 4 terminal of a transformer L5 and a fuse Z5, and the 485B-1 line is connected with the 485B-2 line through a No. 2 terminal of a transformer L5, a No. 3 terminal of a transformer L5 and a fuse Z6; the 485A-2 line and the 485B-2 line are respectively connected with the port 1 and the port 3 of the SIP package, and the port 2 of the SIP package is grounded to 485_ GND-2.
Furthermore, the 485A line is grounded to 485_ GND-2 through a capacitor C45, the 485B line is grounded to 485_ GND-2 through a capacitor C46, a protection circuit Q1TVS is arranged between the 485A line and the 485B line, the protection circuit Q1TVS is formed by connecting two bidirectional breakdown diodes in series, EARTH is grounded between the two bidirectional breakdown diodes, the 485A-1 line is grounded to 485_ GND-2 through a resistor R21, and the 485B-1 line is connected to a power supply VCC-2 through a resistor R24; the terminal 4 of the transformer L5 and the terminal 1 of the fuse Z5 are grounded EARTH through the discharge tube G1, and the terminal 3 of the transformer L5 and the terminal 1 of the fuse Z6 are grounded EARTH through the discharge tube G2.
Further, a power supply VCC5-2 is connected with an internal power supply 5V terminal, a GND terminal is connected with an internal power supply GND terminal, a power supply VCC-2 is connected with a VCC ISO 5V terminal, and a 485_ GND-2 terminal is connected with an ISO GND terminal; the 485A-2 and 485B-2 are connected with the female socket plug-in DB 9.
Furthermore, the CAN bus unit consists of a U7 module, a resistor, a capacitor, a discharge tube, a fuse, a bidirectional breakdown diode, a transformer, a connector, a female socket plug-in and an XH straight socket; a No. 1 port VCC1 of the U7 module is connected with a power supply VCC5, a capacitor C29 is connected with a capacitor C26 in parallel, after the parallel connection, one end of the capacitor C29 is connected with a No. 1 port VCC1, the other end of the capacitor C is grounded GND, a No. 2 port RXD connecting terminal CAN _ RX, a No. 3 port TXD connecting terminal CAN _ TX, a No. 4 port GND1 is grounded GND, a No. 5 port GND2 is grounded GND-2, a No. 6 port CANL and a No. 7 port CANH are respectively connected with a CANL line and a CANH line, and a No.; the CANL line and the CANH line are respectively connected with the CANL-1 line and the CANH-1 line; the CANL line is grounded to GND-2 through a resistor R33, a connector JP1 and a capacitor C32, and the CANH line is grounded to GND-2 through a resistor R34, a connector JP2 and a capacitor C32; the CANL-1 line is connected with the CAN _ L-2 line through a terminal No. 1 of a transformer L3, a terminal No. 4 of a transformer L3 and a fuse Z2, and the CANH-1 line is connected with the CAN _ H-2 line through a terminal No. 2 of a transformer L3, a terminal No. 3 of a transformer L3 and a fuse Z1; the CAN _ H-2 line and the CAN _ L-2 line are respectively connected with the port 1 and the port 3 of the XH straight socket, and the port 2 of the XH straight socket is grounded GND-2.
Further, the CANH line is grounded to GND-2 through a capacitor C43 and a diac D7, the CANL line is grounded to GND-2 through a capacitor C44 and a diac D8, a diac D13 and a protection circuit Q5 are connected between the CANH line and the CANL line, the protection circuit Q5 is formed by connecting two diacs in series, and GND-2 is grounded between the two diacs; the terminal 4 of the transformer L3 and the terminal 1 of the fuse Z1 are grounded EARTH through the discharge tube G3, and the terminal 3 of the transformer L3 and the terminal 1 of the fuse Z2 are grounded EARTH through the discharge tube G4.
Furthermore, a power supply VCC5 is connected with an internal power supply 5V terminal, a power supply VCC-2 is connected with a VCC5 ISO terminal, a GND is connected with an internal power supply GND terminal, and the GND-2 is connected with a GND ISO terminal; the CAN _ H-2 line and the CAN _ L-2 line are connected with the female socket plug-in DB 9.
Furthermore, the loop unit is connected with an early warning module and a probe.
Further, the instrument assembly is connected with the display module, the display module includes display screen, operation pilot lamp, fire alarm pilot lamp, trouble lamp, amortization pilot lamp, shielding pilot lamp and power indicator.
The fire alarm control system with system synchronization provided by the invention has the advantages that: according to the technical scheme, when the two machines monitor the same return line, 2 controllers are respectively used as a host machine and a standby machine, display information of the host machine and the standby machine is synchronous in real time, when system parameters are set at one end of the host machine or the standby machine, the configuration of the other machine is also synchronously modified, and the system parameters comprise the current alarm state, the loop configuration, the time and the like of the system.
The function needs to transmit data by means of a CAN bus or a 485 bus, after the system parameter of one alarm controller changes, the new system parameter is sent to the other controller by the CAN bus or the 485 bus, and the other controller updates the parameter of the local computer in real time after receiving the system parameter; even if the two controllers are relatively far back, the operator can modify the system parameters on any one controller without going to the other controller for secondary setting.
Drawings
FIG. 1 is a schematic diagram of a system-synchronized fire alarm control system according to the present invention;
FIG. 2 is a circuit diagram of an RS485 bus communication circuit of the fire alarm control system of the system synchronization of the present invention;
fig. 3 is a CAN bus communication circuit diagram of a system-synchronous fire alarm control system according to the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to fig. 1, 2 and 3. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, a system-synchronized fire alarm control system includes a main controller, a sub-controller, and a loop unit;
the main controller is used for monitoring the loop unit, receiving monitoring information of the loop unit and sending command signals to each unit through command signals obtained after processing and analyzing the monitoring information;
the sub-controller is used for monitoring the loop unit, receiving monitoring information of the loop unit, sending command signals to each unit through command signals obtained after processing and analyzing the monitoring information, and starting to work when the main controller does not work;
the loop unit is used for monitoring the fire information of the locomotive, sending the fire information to the main controller and the auxiliary controller when the locomotive generates the fire information;
the main controller and the sub-controller are in communication connection with the plurality of loop units through buses, the main controller and the sub-controller are connected through bus real-time communication, system parameters between the main controller and the sub-controller are synchronous through bus configuration, and the main controller and the sub-controller are electrically connected with the instrument assembly and the alarm.
As shown in fig. 2, the master controller and the slave controller establish real-time communication connection through an RS485 bus unit to achieve synchronization of system parameter configuration.
The RS485 bus unit is composed of a U6 module, a resistor, a capacitor, a discharge tube, a fuse, a bidirectional breakdown diode, a transformer, a connector, a female socket plug-in and SIP packaging; the U6 module adopts an ISO3082 chip, SIP packaging adopts an SIP-3 packaging structure based on RS485, the transformer is a transformer L5 with an iron core, and the female socket plug-in adopts a universal DB9 female socket plug-in RS 2; a No. 1 port VCC1 of the U6 module is connected with a power supply VCC5-2, a capacitor C24 is connected with a capacitor C36 in parallel, after the parallel connection, one end of the capacitor C24 is connected with a No. 1 port VCC1, the other end of the capacitor C24 is grounded GND, a No. 3 port R is connected with a terminal R through a resistor R14, a No. 4 port/RE and a No. 5 port DE are connected with a DE-/RE terminal through a resistor R15, a No. 6 port D is connected with a D terminal through a resistor R20, a No. 8 port GND1 is grounded GND, a No. 9 port GND2, a No. 10 port GND2 and a No. 15 port GND2 are grounded 485_ GND-2, a No. 12 port A is connected with a 485A line; the 485A line is grounded to 485_ GND-2 through a resistor R23, a connector JP6 and a capacitor C31, the 485B line is grounded to 485_ GND-2 through a resistor R22, a connector JP5 and a capacitor C31, and the 485A line and the 485B line are respectively connected with a 485A-1 line and a 485B-1 line; the 485A-1 line is connected with the 485A-2 line through a No. 1 terminal of a transformer L5, a No. 4 terminal of a transformer L5 and a fuse Z5, and the 485B-1 line is connected with the 485B-2 line through a No. 2 terminal of a transformer L5, a No. 3 terminal of a transformer L5 and a fuse Z6; the 485A-2 line and the 485B-2 line are respectively connected with the port 1 and the port 3 of the SIP package, and the port 2 of the SIP package is grounded to 485_ GND-2.
The 485A circuit is grounded to 485_ GND-2 through a capacitor C45, the 485B circuit is grounded to 485_ GND-2 through a capacitor C46, a protection circuit Q1TVS is arranged between the 485A circuit and the 485B circuit, the protection circuit Q1TVS is formed by connecting two bidirectional breakdown diodes in series, EARTH is grounded between the two bidirectional breakdown diodes, the 485A-1 circuit is grounded to 485_ GND-2 through a resistor R21, and the 485B-1 circuit is connected to a power supply VCC-2 through a resistor R24; the terminal 4 of the transformer L5 and the terminal 1 of the fuse Z5 are grounded EARTH through the discharge tube G1, and the terminal 3 of the transformer L5 and the terminal 1 of the fuse Z6 are grounded EARTH through the discharge tube G2.
The power supply VCC5-2 is connected with an internal power supply 5V terminal, the GND is connected with an internal power supply GND terminal, the power supply VCC-2 is connected with a VCC ISO 5V terminal, and the 485_ GND-2 is connected with an ISO GND terminal; the 485A-2 and 485B-2 are connected with a mother seat plug-in DB9, and the terminals are connected with STM32F205VGT6 main chips of the main controller and the sub controller.
As shown in fig. 3, the master controller and the slave controller establish a real-time communication connection through the CAN bus unit to achieve synchronization of system parameter configuration.
The CAN bus unit consists of a U7 module, a resistor, a capacitor, a discharge tube, a fuse, a bidirectional breakdown diode, a transformer, a connector, a female socket plug-in and an XH straight socket; the U7 module adopts a CAN transceiver, the SIP package adopts an XH2.54-3 straight socket based on CAN, the transformer is a transformer L3 with an iron core, and the female socket plug adopts a universal DB9 female socket plug RS 3; a No. 1 port VCC1 of the U7 module is connected with a power supply VCC5, a capacitor C29 is connected with a capacitor C26 in parallel, after the parallel connection, one end of the capacitor C29 is connected with a No. 1 port VCC1, the other end of the capacitor C is grounded GND, a No. 2 port RXD connecting terminal CAN _ RX, a No. 3 port TXD connecting terminal CAN _ TX, a No. 4 port GND1 is grounded GND, a No. 5 port GND2 is grounded GND-2, a No. 6 port CANL and a No. 7 port CANH are respectively connected with a CANL line and a CANH line, and a No.; the CANL line and the CANH line are respectively connected with the CANL-1 line and the CANH-1 line; the CANL line is grounded to GND-2 through a resistor R33, a connector JP1 and a capacitor C32, and the CANH line is grounded to GND-2 through a resistor R34, a connector JP2 and a capacitor C32; the CANL-1 line is connected with the CAN _ L-2 line through a terminal No. 1 of a transformer L3, a terminal No. 4 of a transformer L3 and a fuse Z2, and the CANH-1 line is connected with the CAN _ H-2 line through a terminal No. 2 of a transformer L3, a terminal No. 3 of a transformer L3 and a fuse Z1; the CAN _ H-2 line and the CAN _ L-2 line are respectively connected with the port 1 and the port 3 of the XH straight socket, and the port 2 of the XH straight socket is grounded GND-2.
The CANH line is grounded to GND-2 through a capacitor C43 and a diac D7, the CANL line is grounded to GND-2 through a capacitor C44 and a diac D8, a diac D13 and a protection circuit Q5 are connected between the CANH line and the CANL line, the protection circuit Q5 is formed by connecting two diacs in series, and GND-2 is grounded between the two diacs; the terminal 4 of the transformer L3 and the terminal 1 of the fuse Z1 are grounded EARTH through the discharge tube G3, and the terminal 3 of the transformer L3 and the terminal 1 of the fuse Z2 are grounded EARTH through the discharge tube G4.
A power supply VCC5 is connected with an internal power supply 5V terminal, a power supply VCC-2 is connected with a VCC5 ISO terminal, a GND is connected with an internal power supply GND terminal, and a GND-2 is connected with a GND ISO terminal; the CAN _ H-2 line and the CAN _ L-2 line are connected with a female socket plug-in DB9, and the terminals are connected with STM32F205VGT6 main chips of a main controller and a sub controller.
The circuit unit is connected with an early warning module and a probe, and the probe is used for detecting the fire of the locomotive in real time and transmitting the fire information to the circuit unit.
The instrument assembly is connected with the display module, the display module comprises a display screen, an operation indicator lamp, a fire alarm indicator lamp, a fault indicator lamp, a silencing indicator lamp, a shielding indicator lamp and a power indicator lamp.
In summary, in the technical solution, when the two machines monitor the same circuit path, 2 controllers are respectively used as the host machine and the standby machine, the display information of the host machine and the standby machine is synchronized in real time, and when a system parameter is set at one end of the host machine or the standby machine, the configuration of the other machine is also modified synchronously, and the system parameter includes the current alarm state, the circuit configuration, the time, and the like of the system. The function needs to transmit data by means of a CAN bus or a 485 bus, after the system parameter of one alarm controller changes, the new system parameter is sent to the other controller by the CAN bus or the 485 bus, and the other controller updates the parameter of the local computer in real time after receiving the system parameter; even if the two controllers are relatively far back, the operator can modify the system parameters on any one controller without going to the other controller for secondary setting.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A fire alarm control system with system synchronization is characterized by comprising a main controller, a sub-controller and a loop unit;
the main controller is used for monitoring the loop unit, receiving monitoring information of the loop unit, and sending command signals to each unit after processing and analyzing the monitoring information;
the sub-controller is used for monitoring the loop unit, receiving monitoring information of the loop unit, sending command signals to each unit after processing and analyzing the monitoring information, and starting to work when the main controller does not work;
the loop unit is used for monitoring the fire information of the locomotive, sending the fire information to the main controller and the auxiliary controller when the locomotive generates the fire information;
the main controller and the sub-controller are in communication connection with the plurality of loop units through buses, the main controller and the sub-controller are in real-time communication connection through the buses, system parameters between the main controller and the sub-controller are synchronous through bus configuration, and the main controller and the sub-controller are electrically connected with the instrument assembly and the alarm.
2. The system-synchronous fire alarm control system according to claim 1, wherein the bus is a CAN bus unit or an RS485 bus unit.
3. The system-synchronized fire alarm control system of claim 2, wherein the RS485 bus unit is comprised of a U6 module, a resistor, a capacitor, a discharge tube, a fuse, a diac, a transformer, a connector, a female socket insert, and a SIP package; a No. 1 port VCC1 of the U6 module is connected with a power supply VCC5-2, a capacitor C24 is connected with a capacitor C36 in parallel, after the parallel connection, one end of the capacitor C24 is connected with a No. 1 port VCC1, the other end of the capacitor C24 is grounded GND, a No. 3 port R is connected with a terminal R through a resistor R14, a No. 4 port/RE and a No. 5 port DE are connected with a DE-/RE terminal through a resistor R15, a No. 6 port D is connected with a D terminal through a resistor R20, a No. 8 port GND1 is grounded GND, a No. 9 port GND2, a No. 10 port GND2 and a No. 15 port GND2 are grounded 485_ GND-2, a No. 12 port A is connected with a 485A line; the 485A line is grounded to 485_ GND-2 through a resistor R23, a connector JP6 and a capacitor C31, the 485B line is grounded to 485_ GND-2 through a resistor R22, a connector JP5 and a capacitor C31, and the 485A line and the 485B line are respectively connected with a 485A-1 line and a 485B-1 line; the 485A-1 line is connected with the 485A-2 line through a No. 1 terminal of a transformer L5, a No. 4 terminal of a transformer L5 and a fuse Z5, and the 485B-1 line is connected with the 485B-2 line through a No. 2 terminal of a transformer L5, a No. 3 terminal of a transformer L5 and a fuse Z6; the 485A-2 line and the 485B-2 line are respectively connected with the port 1 and the port 3 of the SIP package, and the port 2 of the SIP package is grounded to 485_ GND-2.
4. The system-synchronized fire alarm control system according to claim 2, wherein the 485A line is grounded to 485_ GND-2 through a capacitor C45, the 485B line is grounded to 485_ GND-2 through a capacitor C46, a protection circuit Q1TVS is provided between the 485A line and the 485B line, the protection circuit Q1TVS is composed of two diacs connected in series, EARTH is grounded between the two diacs, the 485A-1 line is grounded to 485_ GND-2 through a resistor R21, and the 485B-1 line is connected to a power supply VCC-2 through a resistor R24; the terminal 4 of the transformer L5 and the terminal 1 of the fuse Z5 are grounded EARTH through the discharge tube G1, and the terminal 3 of the transformer L5 and the terminal 1 of the fuse Z6 are grounded EARTH through the discharge tube G2.
5. The system-synchronous fire alarm control system according to claim 3, wherein a power source VCC5-2 is connected to an internal power source 5V terminal, GND is connected to an internal power source GND terminal, power source VCC-2 is connected to a VCC ISO 5V terminal, and 485_ GND-2 is connected to an ISO GND terminal; the 485A-2 and 485B-2 are connected with the female socket plug-in DB 9.
6. The system-synchronized fire alarm control system of claim 1, wherein the CAN bus unit is comprised of a U7 module, a resistor, a capacitor, a discharge tube, a fuse, a diac, a transformer, a connector, a female plug, and an XH straight jack; a No. 1 port VCC1 of the U7 module is connected with a power supply VCC5, a capacitor C29 is connected with a capacitor C26 in parallel, after the parallel connection, one end of the capacitor C29 is connected with a No. 1 port VCC1, the other end of the capacitor C is grounded GND, a No. 2 port RXD connecting terminal CAN _ RX, a No. 3 port TXD connecting terminal CAN _ TX, a No. 4 port GND1 is grounded GND, a No. 5 port GND2 is grounded GND-2, a No. 6 port CANL and a No. 7 port CANH are respectively connected with a CANL line and a CANH line, and a No.; the CANL line and the CANH line are respectively connected with the CANL-1 line and the CANH-1 line; the CANL line is grounded to GND-2 through a resistor R33, a connector JP1 and a capacitor C32, and the CANH line is grounded to GND-2 through a resistor R34, a connector JP2 and a capacitor C32; the CANL-1 line is connected with the CAN _ L-2 line through a terminal No. 1 of a transformer L3, a terminal No. 4 of a transformer L3 and a fuse Z2, and the CANH-1 line is connected with the CAN _ H-2 line through a terminal No. 2 of a transformer L3, a terminal No. 3 of a transformer L3 and a fuse Z1; the CAN _ H-2 line and the CAN _ L-2 line are respectively connected with the port 1 and the port 3 of the XH straight socket, and the port 2 of the XH straight socket is grounded GND-2.
7. The system-synchronous fire alarm control system according to claim 6, wherein the CANH line is grounded to GND-2 through a capacitor C43 and a diac D7, the CANL line is grounded to GND-2 through a capacitor C44 and a diac D8, a diac D13 and a protection circuit Q5 are connected between the CANH line and the CANL line, the protection circuit Q5 is composed of two diacs connected in series, and GND-2 is grounded between the two diacs; the terminal 4 of the transformer L3 and the terminal 1 of the fuse Z1 are grounded EARTH through the discharge tube G3, and the terminal 3 of the transformer L3 and the terminal 1 of the fuse Z2 are grounded EARTH through the discharge tube G4.
8. The system-synchronized fire alarm control system according to claim 6, wherein the power source VCC5 is connected to the 5V terminal of the internal power source, the power source VCC-2 is connected to the VCC5 ISO terminal, GND is connected to the GND terminal of the internal power source, and GND-2 is connected to the GND ISO terminal; the CAN _ H-2 line and the CAN _ L-2 line are connected with the female socket plug-in DB 9.
9. The system-synchronized fire alarm control system of claim 1, wherein the loop unit is connected to a pre-warning module and a probe.
10. The system-synchronized fire alarm control system of claim 1, wherein the meter assembly is connected to a display module, the display module including a display screen, an operation indicator light, a fire alarm indicator light, a fault indicator light, a sound deadening indicator light, a shielding indicator light, and a power indicator light.
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| CN201911411464.0A CN113129536A (en) | 2019-12-31 | 2019-12-31 | Fire alarm control system with synchronous system |
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| CN201911411464.0A CN113129536A (en) | 2019-12-31 | 2019-12-31 | Fire alarm control system with synchronous system |
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