CN216211428U - Electrical fire monitoring system - Google Patents

Abstract

The utility model relates to an electrical fire monitoring system which comprises electrical fire monitoring equipment, a plurality of centralized display units and a plurality of integrated transformers, wherein the electrical fire monitoring equipment is respectively connected with the centralized display units, each centralized display unit is connected with the plurality of integrated transformers, the centralized display units are respectively connected with a temperature sensor and a leakage current transformer, and the integrated transformers are respectively connected with the temperature sensor and the leakage current transformer; the electric fire monitoring equipment 1 comprises a single chip microcomputer, the single chip microcomputer is in data interconnection with a human-computer interaction interface, an RS232 communication circuit, a network port communication circuit, a two-bus communication circuit and an RS485 communication circuit, the human-computer interaction interface comprises keys, an indicator lamp, a liquid crystal display screen and the like, and the single chip microcomputer is also connected with a USB interface and an SD card data storage module; the singlechip is connected with the switching value output; the switch power supply is connected with the singlechip and outputs voltage for power supply. The utility model is applied to small-sized places, and is convenient and efficient.

Description

Electrical fire monitoring system

Technical Field

The utility model relates to the technical field of fire monitoring systems, in particular to an electrical fire monitoring system applied to small and miniature places.

Background

With the rapid development of the modern technology level, the pace of the social and national urbanization development is rapidly advancing. In the process, electric energy is very important energy, so that the current society cannot be powered on at all, human beings cannot be powered on at all, and the utilization rate of the electricity by the human beings tends to increase every year. Therefore, it is important to use electricity safely and regularly in life and production. With the increase of human power consumption consciousness, dangerous events caused by non-standard power consumption are reduced every year, frequent occurrence of fire and electricity cannot be checked without daily potential safety hazards, and fire fighting and control become the most important safety work in order to avoid electrical fire.

At present, most of electric fire monitoring equipment in the market is matched with two hosts, namely a piano desk type host and a wall-mounted host, or an electric fire monitoring system is only built by the wall-mounted host in some small places, and the electric fire monitoring system formed by the two using modes has complete functions but also has some defects.

The piano-desk type product market is generally a metal cabinet, which comprises parts such as an industrial personal computer, a communication circuit board and the like; the data of the lower-end wall-mounted monitoring extension is collected through network cable connection, and an electrical fire monitoring system on the industrial personal computer displays the data of residual current, temperature, fault arc, electric energy and the like collected by the terminal; in general, the functions are very powerful and complete; one table main machine can be connected with 32 extension machines at least, one extension machine can be connected with 256 point positions at most, and the table main machine is generally applied to large group buildings.

However, in some small and micro places and single buildings, the equipment connected with the terminal is not at many points, so that the waste of host resources is caused; and the host computer of the desk-top of musical instrument and hanging extension are all very expensive, to the wasting of resources of user.

The market also has an electric fire system applied to small-size monomer building, and data of a wall-mounted host computer is collected through RS485 communication terminal equipment, and information is displayed for the user on the display screen of the wall-mounted host computer, and the wall-mounted host computer generally comprises parts such as a display screen (an android screen, a dot matrix liquid crystal screen and the like), a switching power supply, a circuit board, a printer, a lead-acid battery or a lithium battery and the like. This application has two disadvantages. Firstly, the wall-mounted host has large volume and light weight, and meets certain requirements for installation of customers; second, the cost of wall-mounted hosts is also high.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects and provides an electrical fire monitoring system which is applied to small and miniature places and comprises electrical fire monitoring equipment, a centralized display unit and an integrated electrical fire monitoring detector.

The purpose of the utility model is realized as follows:

an electrical fire monitoring system comprises electrical fire monitoring equipment, a plurality of centralized display units and a plurality of integrated transformers, wherein the electrical fire monitoring equipment is respectively connected with the centralized display units, each centralized display unit is connected with the plurality of integrated transformers, the centralized display units are respectively connected with a temperature sensor and a leakage current transformer, and the integrated transformers are respectively connected with the temperature sensor and the leakage current transformer; the electric fire monitoring equipment 1 comprises a single chip microcomputer, the single chip microcomputer is in data interconnection with a human-computer interaction interface, an RS232 communication circuit, a network port communication circuit, a two-bus communication circuit and an RS485 communication circuit, the human-computer interaction interface comprises keys, an indicator lamp, a liquid crystal display screen and the like, and the single chip microcomputer is also connected with a USB interface and an SD card data storage module; the singlechip is connected with the switching value output; the switch power supply is connected with the singlechip and outputs voltage for power supply.

Furthermore, the centralized display unit comprises a single chip microcomputer, the single chip microcomputer is in data interconnection with a human-computer interaction interface, an RS232 communication circuit, a network port communication circuit, a two-bus communication circuit and an RS485 communication circuit, the human-computer interaction interface comprises keys, an indicator lamp, a liquid crystal display screen and the like, and the single chip microcomputer is also connected with a USB interface and an SD card data storage module; the singlechip is connected with the switching value output; the switch power supply is connected with the singlechip and outputs voltage for power supply.

Furthermore, the integrated mutual inductor comprises a single chip microcomputer, the single chip microcomputer is in data interconnection with a human-computer interaction interface and two bus communication circuits, and the single chip microcomputer is further connected with a temperature sampling module and an electric leakage sampling module.

Compared with the prior art, the utility model has the beneficial effects that:

the utility model provides an electrical fire monitoring system, wherein an electrical fire monitoring host and a centralized display unit are designed into the same appearance size as an instrument, RS485 bus communication is adopted, and monitoring equipment can monitor 32 monitoring units (detectors) at most; can be connected with an ARCM series monitoring detector; compared with the large size of the electrical cabinet of the existing monitoring system, the electrical cabinet is small and convenient in appearance; the installation mode can support the guide rail and wall-mounted installation. The utility model reduces the cost of the monitoring system, the market price of the existing set of host computers is at least 2 ten thousand yuan, and the cost of the monitoring system of the utility model is estimated within two thousand yuan.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of an electrical fire monitoring apparatus of the present invention.

Fig. 3 is a functional block diagram of an electrical fire monitoring apparatus of the present invention.

Fig. 4 is a front view of the centralized display unit of the present invention.

FIG. 5 is a functional block diagram of a centralized display unit of the present invention.

Fig. 6 is a functional block diagram of the integrated instrument transformer of the present invention.

Wherein:

the system comprises an electrical fire monitoring device 1, a centralized display unit 2, an integrated transformer 3, a temperature sensor 4 and a leakage current transformer 5.

Detailed Description

For a better understanding of the technical aspects of the present invention, reference will now be made in detail to the accompanying drawings. It should be understood that the following specific examples are not intended to limit the embodiments of the present invention, but are merely exemplary embodiments of the present invention. It should be noted that the description of the positional relationship of the components, such as the component a is located above the component B, is based on the description of the relative positions of the components in the drawings, and is not intended to limit the actual positional relationship of the components.

Example 1:

referring to fig. 1-6, fig. 1 depicts a schematic of the structure of the present invention. As shown in the figures, the electrical fire monitoring system comprises an electrical fire monitoring device 1, a plurality of centralized display units 2 and a plurality of integrated transformers 3, wherein the electrical fire monitoring device 1 is respectively connected with the three centralized display units 2, each centralized display unit 2 is connected with the plurality of integrated transformers 3, the centralized display units 2 are respectively connected with a temperature sensor 4 and a leakage current transformer 5, and the integrated transformers 3 are respectively connected with the temperature sensor 4 and the leakage current transformer 5.

The electric fire monitoring equipment 1 comprises a first single chip microcomputer, the first single chip microcomputer is in data interconnection with a first human-computer interaction interface, a first RS232 communication circuit, a first internet access communication circuit, a first two-bus communication circuit and a first RS485 communication circuit, the first human-computer interaction interface comprises a first key, a first indicator lamp, a first liquid crystal display screen and the like, and the first single chip microcomputer is further connected with a first USB interface and a first SD card data storage module; the first singlechip is connected with the switching value output; the switching power supply is connected with the first singlechip and outputs voltage for power supply.

The rated working voltage of the switching power supply is AC 220V (85% -110%);

the electrical fire monitoring equipment 1 works for 24 hours;

the communication mode of the electrical fire monitoring equipment 1 comprises RS485 bus communication, a Modbus-RTU communication protocol and a transmission distance of 1Km, and the communication transmission distance can be prolonged through a repeater;

monitoring capacity of the electrical fire monitoring apparatus 1: the monitoring equipment can monitor 32 monitoring units (detectors) at most; an ARCM series monitoring detector can be connected.

Monitoring alarm items of the electrical fire monitoring apparatus 1:

(1) residual current failure (leakage): failure unit attributes (location, type);

(2) temperature alarm (overtemperature): failure unit attributes (location, type);

(3) monitoring alarm response time: less than or equal to 10s

(4) Monitoring alarm sound pressure level (a weighted): not less than 70 dB/Im

(5) Monitoring alarm light display: red LED indicator light, red light alarm signal should be kept until manual reset

(6) Monitoring an alarm sound signal: can be manually eliminated, and can be started again when an alarm signal is input again.

Failure alarm items of the electrical fire monitoring apparatus 1:

(1) a communication connecting line between the monitoring equipment and the detector is broken or short-circuited;

(2) the connecting lines among the detector, the residual current sensor and the temperature sensor are broken or short-circuited;

(3) fault alarm response time: less than or equal to 100 s;

(4) monitoring alarm sound pressure level (a weighted): more than or equal to 70 dB/Im;

(5) monitoring alarm light display: a yellow LED indicator light, wherein a yellow light alarm signal is required to be kept until the fault is eliminated;

(6) fault alarm sound signal: the alarm signal can be manually eliminated, and can be started again when the alarm signal is input again;

(7) during a fault, normal operation of the non-faulted loop is not affected.

The control output of the electrical fire monitoring apparatus 1:

and (3) alarm control output: 2 groups of normally open passive contacts; the contact point capacity is AC 220V/1A, DC 30V/1A.

The self-checking project of the electrical fire monitoring equipment 1 is as follows:

(1) and (3) checking an indicator light: alarming, failure and operation;

(2) display screen inspection and sound inspection;

(3) the self-checking time is less than or equal to 60 s.

Event logging of the electrical fire monitoring device 1:

(1) recording the content: record type, time of occurrence, probe number, zone, fault description, etc.

(2) Recording and inquiring: and inquiring according to conditions such as date and type of records.

The operation of the electrical fire monitoring apparatus 1 is classified:

(1) daily class: monitoring the real-time state and inquiring event records;

(2) monitoring the operation level: monitoring real-time state, inquiring event record, remotely resetting a detector and self-checking equipment;

(3) a system management level: the method comprises the steps of real-time state monitoring, event record inquiry, remote detector resetting, equipment self-checking, monitoring equipment system parameter inquiry, individual detection of each module of the monitoring equipment, and addition and deletion of operators.

The centralized display unit 2 comprises a second single chip microcomputer, the second single chip microcomputer is in data interconnection with a second human-computer interaction interface, a second RS232 communication circuit, a second internet access communication circuit, a second bus communication circuit and a second RS485 communication circuit, the second human-computer interaction interface comprises a second key, a second indicator lamp, a second liquid crystal display screen and the like, and the second single chip microcomputer is further connected with a second USB interface and a second SD card data storage module; the second singlechip is connected with the switching value output; the switch power supply is connected with the second singlechip and outputs voltage for power supply.

The integrated mutual inductor 3 comprises a third single chip microcomputer, the third single chip microcomputer is in data interconnection with a third human-computer interaction interface and a third second bus communication circuit, and the third single chip microcomputer is connected with a temperature sampling module and a leakage sampling module.

The above is only a specific application example of the present invention, and the protection scope of the present invention is not limited in any way. All the technical solutions formed by equivalent transformation or equivalent replacement fall within the protection scope of the present invention.

Claims (3)

1. An electrical fire monitoring system, characterized in that: the electric fire monitoring equipment is respectively connected with the plurality of centralized display units, each centralized display unit is connected with the plurality of integrated transformers, the centralized display units are respectively connected with a temperature sensor and a leakage current transformer, and the integrated transformers are respectively connected with the temperature sensor and the leakage current transformer; the electric fire monitoring equipment comprises a first single chip microcomputer, the first single chip microcomputer is in data interconnection with a first human-computer interaction interface, a first RS232 communication circuit, a first internet access communication circuit, a first two-bus communication circuit and a first RS485 communication circuit, the first human-computer interaction interface comprises a first key, a first indicator lamp and a first liquid crystal display screen, and the first single chip microcomputer is further connected with a first USB interface and a first SD card data storage module; the first singlechip is connected with the switching value output; the switching power supply is connected with the first singlechip and outputs voltage for power supply.

2. An electrical fire monitoring system according to claim 1, wherein: the centralized display unit comprises a second single chip microcomputer, the second single chip microcomputer is in data interconnection with a second human-computer interaction interface, a second RS232 communication circuit, a second internet access communication circuit, a second bus communication circuit and a second RS485 communication circuit, the second human-computer interaction interface comprises a second key, a second indicator light and a second liquid crystal display, and the second single chip microcomputer is further connected with a second USB interface and a second SD card data storage module; the second singlechip is connected with the switching value output; the switch power supply is connected with the second singlechip and outputs voltage for power supply.

3. An electrical fire monitoring system according to claim 1, wherein: the integrated mutual inductor comprises a third single chip microcomputer, the third single chip microcomputer is in data interconnection with a third human-computer interaction interface and a third second bus communication circuit, and the third single chip microcomputer is further connected with a temperature sampling module and a leakage sampling module.

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