CN112767637A - Intelligent digital fire-fighting electrical fire monitoring system - Google Patents

Intelligent digital fire-fighting electrical fire monitoring system Download PDF

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Publication number
CN112767637A
CN112767637A CN202110074530.0A CN202110074530A CN112767637A CN 112767637 A CN112767637 A CN 112767637A CN 202110074530 A CN202110074530 A CN 202110074530A CN 112767637 A CN112767637 A CN 112767637A
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China
Prior art keywords
detector
temperature
interface
bus
fire
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CN202110074530.0A
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Chinese (zh)
Inventor
杨明龙
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DONGGUAN JINGHENG ELECTRONICS CO LTD
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DONGGUAN JINGHENG ELECTRONICS CO LTD
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Priority to CN202110074530.0A priority Critical patent/CN112767637A/en
Publication of CN112767637A publication Critical patent/CN112767637A/en
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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
    • G08B17/06—Electric actuation of the alarm, e.g. using a thermally-operated switch
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D21/00—Measuring or testing not otherwise provided for
    • G01D21/02—Measuring two or more variables by means not covered by a single other subclass
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B7/00—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00
    • G08B7/06—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Health & Medical Sciences (AREA)
  • Computing Systems (AREA)
  • General Health & Medical Sciences (AREA)
  • Medical Informatics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Alarm Systems (AREA)

Abstract

The invention discloses an intelligent digital fire-fighting electrical fire monitoring system which analyzes in real time through an electrical fire monitoring detector to ensure the use safety of electrical equipment so as to improve the safety of an electric system. The invention includes a monitoring device, the monitoring device includes 2 routes of PB bus: each PB bus can be connected with a plurality of electrical detector terminal devices; the monitoring equipment is also provided with a first simplex RS-485 interface and a second simplex RS-485 interface, the first simplex RS-485 interface is connected with a first LT-10 signal collector, and the second simplex RS-485 interface is connected with a second LT-10 signal collector. The electric fire monitoring system can send out alarm signals and control signals when monitoring that the detection parameters in the protected line exceed the alarm set values, can respond to the electric fire in time, is accurate, flexible, efficient, stable and reliable in real time, and guarantees the electricity utilization safety.

Description

Intelligent digital fire-fighting electrical fire monitoring system
Technical Field
The invention relates to an electrical fire monitoring and suppressing system, in particular to an intelligent digital electrical fire monitoring system which can detect digitally and suppress fire automatically.
Background
With the rapid development and the continuous improvement of the modernization degree of the society, electric energy becomes the main clean energy of the society, the use amount of electric equipment is increased day by day, the demand of people on the electric energy is increased rapidly, and urban planning and development construction cannot be separated from power generation equipment, variable distribution equipment and electric equipment. They bring convenience to social production and people's life, and also bring hidden troubles of electric fire accidents to different degrees, and the electric fire is caused by electric leakage, short circuit, overload, insulation aging, cable temperature overheating, overvoltage or undervoltage, nonlinear load and other reasons. Some problems exist in current electrical fire monitoring, especially untimely alarm prevention and high false alarm rate.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, the electric fire monitoring detector is used for analyzing in real time, and a worker can observe the state of the electric equipment in real time according to a display screen of the monitoring equipment, so that the use safety of the electric equipment is ensured, and the safety of an electric system is improved.
In order to achieve the purpose, the intelligent digital fire-fighting electrical fire monitoring system adopts the following technical scheme:
the utility model provides a digital fire control electrical fire monitored control system of intelligence, includes supervisory equipment, supervisory equipment includes the host computer, and supervisory equipment contains 2 way PB buses: each PB BUS is in communication connection with a set of detection sub-equipment (terminal) through a POWER BUS protocol;
the monitoring device is also provided with a first simplex RS-485 interface and a second simplex RS-485 interface, the first simplex RS-485 interface is in communication connection with a first LT-10 signal collector through an RS485 protocol, the second simplex RS-485 interface is in communication connection with a second LT-10 signal collector through an RS485 protocol, the 2-path LT-10 signal collector is used for expanding a PB BUS, and each path of expanded PB BUS is in communication connection with one set of detection sub-devices through a POWER BUS protocol;
the supervisory equipment is also provided with 2 road network ports: the system comprises a network port A and a network port B, wherein one network port A is used for connecting a remote service platform, the other network port B is used for host expansion, and a plurality of sets of detection sub-equipment (a plurality of electrical detector terminal equipment) can be added when one host is expanded through the network port B (through network port expansion);
the detection sub-equipment comprises a plurality of electrical detector terminal equipment; the electric detector terminal equipment adopts a combined electric detector and/or a temperature type electric detector;
the electric detector terminal equipment adopts a combined electric detector and/or a temperature type electric detector;
the combined electrical detector comprises a three-phase detection input interface, a 4-path circuit transformer and a 3-path temperature sensor, wherein the three-phase detection input interface is connected to an A, B, C, N line of a power grid at the front end of the distribution circuit breaker and can respectively detect the input 3-phase voltage and phase; the end part of the 3-way temperature sensor is provided with a temperature detector, the temperature detector of the 3-way temperature sensor is connected to an A, B, C wire at a load end, and the temperature of each phase of cable at the load end is detected; the load end is provided with a mutual inductor, and the 4-circuit mutual inductor is connected with the mutual inductor and can detect residual current and single-phase current respectively.
Furthermore, in some embodiments, the monitoring device is provided with a linkage short-circuit signal output and a battery, and the linkage short-circuit signal output can send out wired and/or wireless short-circuit signal transmission;
and the monitoring equipment is provided with an RS-232 interface, and the RS-232 interface is used for connecting a printer.
In some embodiments, the combined electrical detector is provided with 2 paths of relay outputs for controlling a distribution circuit breaker (electrical switch) to realize manual and timing switching;
the combined type electric detector is provided with a PB two-wire system communication bus, and the PB two-wire system communication bus is connected with a PB bus of the monitoring equipment (host);
and a buzzer alarm and a display screen are arranged on the combined electrical detector, and the display screen adopts an OLED display screen.
Furthermore, a sensor fault detection circuit, a 2G/4G antenna interface and an SIM card socket are arranged on the combined electrical detector, the 2G/4G card can be inserted into the SIM card socket, independent wireless connection with the platform is realized through the 2G/4G antenna interface, and data are directly transmitted to the monitoring equipment platform;
in some embodiments, the combined electrical detector is provided with a 4-way circuit transformer, and the transformer can adopt an open-close circular transformer, a closed square transformer or a closed circular transformer.
Further, the temperature type electric detector comprises 3 paths of temperature sensors, the end parts of the 3 paths of temperature sensors are provided with temperature detectors, the temperature detectors of the 3 paths of temperature sensors are connected to an A, B, C line at a load end, and the temperature of each phase of cable at the load end is detected;
the temperature type electric detector is provided with 2 paths of relay outputs for controlling a distribution circuit breaker and realizing manual and timing switching;
the temperature type electric detector is provided with a PB two-wire system communication bus, and the PB two-wire system communication bus is connected with a PB bus of the monitoring equipment;
in some embodiments, the temperature type electric detector is provided with a buzzer alarm and a display screen, and the display screen adopts an OLED display screen;
the temperature type electrical detector is provided with a sensor fault detection circuit, a 2G/4G antenna interface and an SIM card socket, wherein the SIM card socket can be inserted into a 2G/4G card to realize independent wireless connection with the platform, and data is directly transmitted to the monitoring equipment platform.
The invention comprises a first PB bus and a second PB bus, wherein each PB bus can be connected with a plurality of electrical detector terminal devices; the electric fire monitoring system can send out alarm signals and control signals when monitoring that the detection parameters in the protected line exceed the alarm set value, can indicate the alarm position, can respond to the electric fire in time, is accurate, flexible, efficient, stable and reliable in real time, and guarantees the electricity utilization safety.
Drawings
FIG. 1 is a schematic diagram of the system of the present invention;
FIG. 2 is a schematic view of a monitoring device of the present invention;
FIG. 3 is a schematic diagram of the detection sub-assembly of the present invention;
FIG. 4 is a schematic view of the combined electrical probe of the present invention;
FIG. 5 illustrates a UI user interface of the combined electrical detector of the present invention;
FIG. 6 is a schematic view of the temperature-based electrical probe of the present invention;
FIG. 7 is a UI user interface of the temperature electrical probe of the present invention;
fig. 8 is a system configuration diagram of the present invention.
The reference numerals are explained below:
the intelligent monitoring system comprises a monitoring device 10, a first PB bus 11, a second PB bus 12, an A network port 13, a B network port 14, a first simplex RS-485 interface 15, a second simplex RS-485 interface 16, an RS-232 interface 17, a battery 18, a linkage short-circuit signal output 19, a detection sub-device 20, a combined electrical detector 21, a temperature type electrical detector 22, a second LT-10 signal collector 25, a first LT-10 signal collector 26 and a power distribution circuit breaker 27.
Detailed Description
For further understanding of the features and technical means of the present invention, as well as the specific objects and functions attained by the present invention, the advantages and spirit of the present invention will be further understood by reference to the following detailed description and the accompanying drawings.
The principle block diagram of the invention is shown in figure 1, and the invention comprises: the monitoring device 10 includes a host, and the host is extended through the B-port 14 (port extension), and the host can manage 250 electrical detector terminal devices in total. The monitoring device 10 includes a 2-way PB bus: each PB BUS is in communication connection with a set of detection sub-equipment 20 through a POWER BUS protocol, and the set of detection sub-equipment 20 can contain 32 pieces of electrical detector terminal equipment; that is, each PB bus can be connected with 32 electrical detector terminal devices, and 2 PB buses are connected with 64 terminals;
the monitoring device 10 is also provided with a first simplex RS-485 interface 15 and a second simplex RS-485 interface 16, the first simplex RS-485 interface 15 is in communication connection with a first LT-10 signal collector 26 through an RS485 protocol, the second simplex RS-485 interface 16 is in communication connection with a second LT-10 signal collector 25 through an RS485 protocol, 2 paths of LT-10 signal collectors are used for expanding a PB BUS, each path of expanded PB BUS can be connected with 16 electrical detector terminal devices (a set of detection sub-devices 20) through POWER BUS protocol communication, and the 2 paths of LT-10 signal collectors are connected with 32 terminals in total;
the monitoring device 10 is also provided with 2 road network ports: one path of the network port a 13 is used for connecting a remote service platform, the other path of the network port B14 is used for host expansion, and when one host is expanded through the network port B14 (through network port expansion), 2 paths of PB buses and 2 paths of expanded PB buses can be added, and up to four sets of detection sub-devices 20 can be added. 32 ~ 64 host computers can be expanded through the net gape extension, and 250 electrical detector terminal equipment can be connected, managed to supervisory equipment 10.
The detection sub-device 20 comprises a plurality of electrical detector terminal devices; the electric detector terminal equipment adopts a combined electric detector 21 and/or a temperature type electric detector 22.
The combined electrical detector 21 comprises a three-phase detection input interface, a 4-path circuit transformer and a 3-path temperature sensor, wherein the three-phase detection input interface is connected to an A, B, C, N line of a power grid at the front end of the distribution circuit breaker 27 and can respectively detect the input 3-phase voltage and phase; the end part of the 3-way temperature sensor is provided with a temperature detector, the temperature detector of the 3-way temperature sensor is connected to an A, B, C wire at a load end, and the temperature of each phase of cable at the load end is detected; the load end is provided with a mutual inductor, and the 4-circuit mutual inductor is connected with the mutual inductor and can detect residual current and single-phase current respectively. The combined electrical detector 21 performs residual current/temperature detection.
In some embodiments, the monitoring device 10 is provided with a linkage short-circuit signal output 19 and a battery 18 (lithium battery 6AH), and the linkage short-circuit signal output 19 can send out wired and/or wireless short-circuit signal transmission; the monitoring device 10 is provided with an RS-232 interface 17 (reserved), and the RS-232 interface 17 is used for connecting a printer.
The combined electrical detector 21 is provided with 2 paths of relay outputs for controlling the power distribution circuit breaker 27 and realizing manual and timing switching; the combined type electric detector 21 is provided with a PB two-wire system communication bus which is connected with a PB bus of the monitoring device 10 (host);
the combined electrical detector 21 is provided with a buzzer alarm and a display screen, and the display screen adopts an OLED display screen (with a screen protection function).
Fig. 5 is a UI display interface (OLED display screen) of the combined electrical detector 21.
In some embodiments, the combined electrical detector 21 is provided with a sensor fault detection circuit, a 2G/4G antenna interface, and a SIM card socket, the SIM card socket can be inserted into a 2G/4G card to implement independent wireless connection with a platform, and data is directly transmitted to a platform of the monitoring device 10 (host); the sensor fault detection circuit monitors the working states of the 3-path temperature sensor and the 4-path circuit mutual inductor connecting mutual inductor in real time.
Electrical parameters of the combined electrical detector 21:
working voltage: 24V, two-wire bus power supply;
residual current alarm society set range: 50 mA-1000 mA, stepping: 1 mA;
residual current alarm corresponding time <30 s;
temperature alarm agency-set range: 45-140 degrees, stepping: 1 degree;
temperature alarm corresponding time <30 s;
main loop maximum detection circuit: 2000A, voltage: < AC 660;
the use environment is as follows: 0-40 ℃, the relative humidity is less than 95%, condensation is not generated, and the altitude is less than 3000 m;
waterproof grade: IP 30.
The combined electrical detector 21 is provided with 4 circuits of mutual inductors, and the mutual inductors can adopt an open-close circular mutual inductor, a closed square mutual inductor or a closed circular mutual inductor.
In some embodiments, the temperature-based electrical probe 22 includes 3 temperature sensors, a temperature probe is disposed at an end of the 3 temperature sensors, and the temperature probe of the 3 temperature sensors is connected to the A, B, C line at the load end to detect the temperature of each phase of cable at the load end; the temperature type electric detector 22 is provided with 2 paths of relay outputs for controlling a distribution circuit breaker 27 (an electric switch) to realize manual and timing switching;
the temperature type electric detector 22 is provided with a PB two-wire system communication bus which is connected with a PB bus of the monitoring device 10 (host);
electrical parameters of the temperature-based electrical detector 22:
working voltage: 24V, two-wire bus power supply;
temperature alarm agency-set range: 45-140 degrees, stepping: 1 degree;
temperature alarm corresponding time <30 s;
the use environment is as follows: 0-40 ℃, the relative humidity is less than 95%, condensation is not generated, and the altitude is less than 3000 m;
waterproof grade: IP 30;
a temperature sensor: detection temperature range: -40 to 150 ℃.
Fig. 7 is a temperature-based electrical probe 22: UI display interface (OLED display).
In some embodiments, the temperature type electrical detector 22 is provided with a buzzer alarm and a display screen, the display screen adopts an OLED display screen (with a screen protection function), and the display screen can be set with functions such as ID and the like; the temperature type electrical detector 22 is provided with a sensor fault detection circuit, a 2G/4G antenna interface and an SIM card socket, wherein the SIM card socket can be inserted into a 2G/4G card, the independent wireless connection with the platform is realized through the 2G/4G antenna interface, and data is directly transmitted to the monitoring equipment 10 (host) platform.
The monitoring device 10 can set Power Bus, and can be directly connected with Power Bus equipment if a user needs; the monitoring device 10 can be connected to a maximum of 512 probe sub-devices, including devices (electrical probe terminals) connected below the LT-10 signal collector.
The electric fire monitoring system can perform early warning before a fire occurs, can quickly perform early warning on the electric fire, improves the reliability of early warning information, avoids actual loss, realizes effective monitoring on the electric circuit shape sinking, and prevents the electric fire from the source.
The above examples are only intended to represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (7)

1. An intelligent digital fire protection electrical fire monitoring system, comprising: monitoring device (10), monitoring device (10) include the host computer, characterized in that, monitoring device (10) contain 2 way PB buses: the system comprises a first PB BUS (11) and a second PB BUS (12), wherein each PB BUS is in communication connection with a set of detection sub-equipment (20) through a POWER BUS protocol;
the monitoring device (10) is also provided with a first simplex RS-485 interface (15) and a second simplex RS-485 interface (16), the first simplex RS-485 interface (15) is in communication connection with a first LT-10 signal collector (26) through an RS485 protocol, the second simplex RS-485 interface (16) is in communication connection with a second LT-10 signal collector (25) through the RS485 protocol, the 2-path LT-10 signal collector is used for expanding a PB BUS, and each path of expanded PB BUS is in communication connection with a set of detection sub-devices (20) through a POWER BUS protocol;
the monitoring equipment (10) is also provided with 2 road network ports: the system comprises an A network port (13) and a B network port (14), wherein one path of the A network port (13) is used for connecting a remote service platform, the other path of the B network port (14) is used for host expansion, and a plurality of sets of detection sub-devices (20) can be added when one host is expanded through the B network port (14);
the detection sub-equipment (20) comprises a plurality of electrical detector terminal equipment; the electric detector terminal equipment adopts a combined electric detector (21) and/or a temperature type electric detector (22);
the combined electrical detector (21) comprises a three-phase detection input interface, a 4-circuit transformer and a 3-circuit temperature sensor, wherein the three-phase detection input interface is connected to an A, B, C, N line of a front-end power grid of the distribution circuit breaker (27) and can respectively detect the input 3-phase voltage and phase; the end part of the 3-way temperature sensor is provided with a temperature detector, the temperature detector of the 3-way temperature sensor is connected to an A, B, C wire at a load end, and the temperature of each phase of cable at the load end is detected; the load end is provided with a mutual inductor, and the 4-circuit mutual inductor is connected with the mutual inductor and can detect residual current and single-phase current respectively.
2. An intelligent digital fire-fighting electrical fire monitoring system according to claim 1, characterized in that the monitoring device (10) is provided with a linkage short-circuit signal output (19) and a battery (18), the linkage short-circuit signal output (19) can send out wired and/or wireless short-circuit signal transmission;
and an RS-232 interface (17) is arranged on the monitoring equipment (10), and the RS-232 interface (17) is used for connecting a printer.
3. An intelligent digital fire-fighting electrical fire monitoring system as defined in claim 1, wherein the combined electrical detector (21) is provided with 2-way relay output for controlling a distribution breaker (27) to realize manual and timing switching;
the combined type electric detector (21) is provided with a PB two-wire system communication bus, and the PB two-wire system communication bus is connected with a PB bus of the monitoring equipment (10);
the combined electrical detector (21) is provided with a buzzer alarm and a display screen, and the display screen adopts an OLED display screen.
4. The intelligent digital fire-fighting electrical fire monitoring system according to claim 1, wherein the combined electrical detector (21) is provided with a sensor fault detection circuit, a 2G/4G antenna interface and a SIM card socket, the SIM card socket can be inserted into a 2G/4G card, independent wireless connection with a platform is realized through the 2G/4G antenna interface, and data are directly transmitted to a monitoring device (10) platform.
5. An intelligent digital fire-fighting electrical fire monitoring system according to claim 1, characterized in that the combined electrical detector (21) is provided with 4-way circuit transformers which are open-close circular transformers, closed square transformers or closed circular transformers.
6. An intelligent digital fire-fighting electrical fire monitoring system as defined in claim 1, wherein the temperature-type electrical detector (22) comprises 3 temperature sensors, the end of the 3 temperature sensors is provided with a temperature detector, the temperature detector of the 3 temperature sensors is connected to A, B, C lines at the load end, and the temperature of each phase of cable at the load end is detected;
the temperature type electric detector (22) is provided with 2 paths of relay outputs for controlling the distribution circuit breaker (27) to realize manual and timing switching;
and a PB two-wire system communication bus is arranged on the temperature type electric detector (22) and is connected with the PB bus of the monitoring equipment (10).
7. An intelligent digital fire-fighting electrical fire monitoring system according to claim 1, characterized in that the temperature type electrical detector (22) is provided with a buzzer alarm and a display screen, and the display screen adopts an OLED display screen;
the temperature type electrical detector (22) is provided with a sensor fault detection circuit, a 2G/4G antenna interface and an SIM card socket, the SIM card socket can be inserted into a 2G/4G card, independent wireless connection with a platform is achieved through the 2G/4G antenna interface, and data are directly transmitted to a monitoring device (10) platform.
CN202110074530.0A 2021-01-20 2021-01-20 Intelligent digital fire-fighting electrical fire monitoring system Pending CN112767637A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110074530.0A CN112767637A (en) 2021-01-20 2021-01-20 Intelligent digital fire-fighting electrical fire monitoring system

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Application Number Priority Date Filing Date Title
CN202110074530.0A CN112767637A (en) 2021-01-20 2021-01-20 Intelligent digital fire-fighting electrical fire monitoring system

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113311762A (en) * 2021-05-28 2021-08-27 应急管理部沈阳消防研究所 Intelligent electric fire prevention and control system and method based on Internet of things technology

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113311762A (en) * 2021-05-28 2021-08-27 应急管理部沈阳消防研究所 Intelligent electric fire prevention and control system and method based on Internet of things technology

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