CN118209898A - Fault detection circuit and safety fire-fighting equipment - Google Patents
Fault detection circuit and safety fire-fighting equipment Download PDFInfo
- Publication number
- CN118209898A CN118209898A CN202310919551.7A CN202310919551A CN118209898A CN 118209898 A CN118209898 A CN 118209898A CN 202310919551 A CN202310919551 A CN 202310919551A CN 118209898 A CN118209898 A CN 118209898A
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- Prior art keywords
- component
- electrically connected
- voltage
- voltage dividing
- detection
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/52—Testing for short-circuits, leakage current or ground faults
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/50—Testing or indicating devices for determining the state of readiness of the equipment
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
- G01R1/0416—Connectors, terminals
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/30—Structural combination of electric measuring instruments with basic electronic circuits, e.g. with amplifier
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
- G01R15/04—Voltage dividers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/0084—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring voltage only
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/185—Electrical failure alarms
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Fire Alarms (AREA)
Abstract
The invention provides a fault detection circuit and safety fire protection equipment, wherein the fault detection circuit comprises: the device comprises a connecting end, a detecting end, a first voltage dividing assembly, a second voltage dividing assembly and a detecting chip; wherein: the connecting end is electrically connected to a negative power line of the bus; one end of the first voltage dividing component is electrically connected with the connecting end, and the other end of the first voltage dividing component is electrically connected with one end of the second voltage dividing component; the other end of the second voltage division component is electrically connected with the ground terminal; the detection chip is electrically connected with the detection end, the detection end is a connection point of the first voltage dividing component and the second voltage dividing component and is used for generating fault alarm information when the voltage of the detection end is detected to change. The detection chip can detect whether the electric leakage condition occurs between buses by detecting whether the voltage change occurs at the detection end, and can give an alarm in time when the electric leakage condition occurs between buses, so that safety is ensured.
Description
Technical Field
The invention relates to the technical field of electronics, in particular to a fault detection circuit and safety fire-fighting equipment.
Background
With the development of intelligent buildings, fire-fighting equipment is increasingly applied to the intelligent buildings. In the existing fire-fighting system, a plurality of fire-fighting devices can be sequentially connected in series between a positive power line and a negative power line of a bus, for example, a smoke detector can realize smoke detection. However, due to various reasons such as poor construction and long-term repair of the line during installation, the bus accessed by the fire-fighting equipment has the problems of electric leakage, short circuit and the like, so that the fire-fighting equipment cannot be used normally.
Disclosure of Invention
The present invention aims to solve the above-mentioned problems.
In order to achieve the above purpose, the technical scheme of the invention is specifically realized as follows:
in one aspect, the present invention provides a fault detection circuit comprising: the device comprises a connecting end, a detecting end, a first voltage dividing assembly, a second voltage dividing assembly and a detecting chip; wherein:
The connecting end is electrically connected to a negative power line of the bus;
One end of the first voltage dividing component is electrically connected with the connecting end, and the other end of the first voltage dividing component is electrically connected with one end of the second voltage dividing component;
The other end of the second voltage division component is electrically connected with the ground terminal;
The detection chip is electrically connected with the detection end, the detection end is a connection point of the first voltage division component and the second voltage division component and is used for generating fault alarm information when the voltage of the detection end is detected to change.
Optionally, the first voltage dividing component comprises a first resistor; the second voltage dividing assembly comprises a second resistor.
Optionally, the fault detection circuit further comprises a filtering component, wherein:
one end of the filtering component is electrically connected with one end of the second voltage division component, and the other end of the filtering component is electrically connected with the ground terminal.
Another aspect of the present invention provides a safety fire apparatus comprising: input, output and fault detection module, wherein:
The input end is connected to a positive power line of the bus;
the output end is connected to a negative power line of the bus;
The fault detection module comprises: the device comprises an access terminal, a detection terminal, a first voltage division component, a second voltage division component and a detection chip; wherein:
the access end is electrically connected with the output end;
One end of the first voltage dividing component is electrically connected with the access end, and the other end of the first voltage dividing component is electrically connected with one end of the second voltage dividing component;
The other end of the second voltage division component is electrically connected with the ground terminal;
The detection chip is electrically connected with the detection end, the detection end is a connection point of the first voltage division component and the second voltage division component and is used for generating fault alarm information when the voltage of the connection point is detected to change.
Optionally, the first voltage dividing component comprises a first resistor; the second voltage dividing assembly comprises a second resistor.
Optionally, the fault detection module further includes a filter component, one end of the filter component is electrically connected with one end of the second voltage division component, and the other end of the filter component is electrically connected with the ground terminal.
According to the technical scheme provided by the invention, the fault detection circuit and the safety fire-fighting equipment are provided, the detection chip can detect whether the electric leakage condition occurs between buses by detecting whether the voltage change occurs at the detection end, and can give an alarm in time when the electric leakage condition occurs between buses, so that the safety is ensured.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a fault detection circuit according to an embodiment of the present invention;
Fig. 2 is a schematic structural diagram of a safety fire-fighting device according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.
Fig. 1 shows a schematic structural diagram of a fault detection circuit provided by an embodiment of the present invention, referring to fig. 1, the fault detection circuit provided by the embodiment of the present invention includes: the device comprises a connecting end, a detecting end, a first voltage dividing assembly, a second voltage dividing assembly and a detecting chip; wherein:
The connecting end is electrically connected to a negative power line of the bus;
One end of the first voltage dividing component is electrically connected with the connecting end, and the other end of the first voltage dividing component is electrically connected with one end of the second voltage dividing component;
the other end of the second voltage division component is electrically connected with the ground terminal;
The detection chip is electrically connected with the detection end, the detection end is a connection point of the first voltage dividing component and the second voltage dividing component and is used for generating fault alarm information when the voltage of the detection end is detected to change.
Specifically, the fault detection circuit provided by the embodiment of the invention is connected to the negative power line of the bus, once the electric leakage condition between buses occurs, the voltage of the connecting end changes, the voltage of the detection end changes through the voltage division of the first voltage division component and the second voltage division component, the detection chip can detect whether the electric leakage condition between buses occurs by detecting whether the voltage of the detection end changes, and the alarm can be given out timely when the electric leakage condition between buses occurs, so that the safety is ensured.
As an alternative implementation of the embodiment of the present invention, the first voltage dividing component includes a first resistor; the second voltage dividing component comprises a second resistor. The voltage division is realized through the resistor, so that the circuit structure is simple, and the cost is reduced.
As an optional implementation manner of the embodiment of the present invention, the fault detection circuit provided by the embodiment of the present invention further includes a filtering component, where: one end of the filtering component is electrically connected with one end of the second voltage division component, and the other end of the filtering component is electrically connected with the ground end. Protection of the fault detection circuit is achieved through the filtering component. In particular, the filter element may be a capacitor.
Therefore, by the fault detection circuit provided by the embodiment of the invention, the detection chip can detect whether the electric leakage condition occurs between buses by detecting whether the voltage change occurs at the detection end, and can give an alarm in time when the electric leakage condition occurs between buses, so that the safety is ensured.
Fig. 2 shows a schematic structural diagram of a security fire protection apparatus provided by an embodiment of the present invention, referring to fig. 2, the security fire protection apparatus provided by the embodiment of the present invention includes: input, output and fault detection module, wherein:
the input end is connected to a positive power line of the bus;
The output end is connected to a negative power line of the bus;
a fault detection module comprising: the device comprises an access terminal, a detection terminal, a first voltage division component, a second voltage division component and a detection chip; wherein:
The access end is electrically connected with the output end;
One end of the first voltage dividing component is electrically connected with the access end, and the other end of the first voltage dividing component is electrically connected with one end of the second voltage dividing component;
the other end of the second voltage division component is electrically connected with the ground terminal;
the detection chip is electrically connected with the detection end, the detection end is a connection point of the first voltage dividing component and the second voltage dividing component and is used for generating fault alarm information when the voltage of the connection point is detected to change.
Specifically, the safety fire protection equipment provided by the embodiment of the invention is connected to the bus, wherein the input end is connected to the positive power line of the bus, the output end is connected to the negative power line of the bus, once the electricity leakage condition between the buses occurs, the voltage change can be generated at the access end of the fault detection module, the voltage change is generated at the detection end through the voltage division of the first voltage division component and the second voltage division component, the detection chip can detect whether the electricity leakage condition between the buses is generated by detecting whether the voltage change is generated at the detection end, and the alarm can be given in time when the electricity leakage condition is generated between the buses, so that the safety of the safety fire protection equipment is ensured.
As an alternative implementation of the embodiment of the present invention, the first voltage dividing component includes a first resistor; the second voltage dividing component comprises a second resistor. The voltage division is realized through the resistor, so that the circuit structure is simple, and the cost is reduced.
As an optional implementation manner of the embodiment of the present invention, the fault detection module further includes a filter component, one end of the filter component is electrically connected to one end of the second voltage division component, and the other end of the filter component is electrically connected to the ground terminal. Protection of the fault detection circuit is achieved through the filtering component. In particular, the filter element may be a capacitor.
Therefore, according to the safety fire-fighting equipment provided by the embodiment of the invention, the detection chip in the fault detection module can detect whether the electric leakage condition occurs between buses by detecting whether the voltage change occurs at the detection end, and can give an alarm in time when the electric leakage condition occurs between buses, so that the safety of the safety fire-fighting equipment is ensured.
Although embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives, and variations may be made in the above embodiments by those skilled in the art without departing from the spirit and principles of the invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. A fault detection circuit, comprising: the device comprises a connecting end, a detecting end, a first voltage dividing assembly, a second voltage dividing assembly and a detecting chip; wherein:
The connecting end is electrically connected to a negative power line of the bus;
One end of the first voltage dividing component is electrically connected with the connecting end, and the other end of the first voltage dividing component is electrically connected with one end of the second voltage dividing component;
The other end of the second voltage division component is electrically connected with the ground terminal;
The detection chip is electrically connected with the detection end, the detection end is a connection point of the first voltage division component and the second voltage division component and is used for generating fault alarm information when the voltage of the detection end is detected to change.
2. The fault detection circuit of claim 1, wherein,
The first voltage dividing assembly comprises a first resistor; the second voltage dividing assembly comprises a second resistor.
3. The fault detection circuit of claim 1, further comprising a filtering component, wherein:
one end of the filtering component is electrically connected with one end of the second voltage division component, and the other end of the filtering component is electrically connected with the ground terminal.
4. A safety fire apparatus, comprising: input, output and fault detection module, wherein:
The input end is connected to a positive power line of the bus;
the output end is connected to a negative power line of the bus;
The fault detection module comprises: the device comprises an access terminal, a detection terminal, a first voltage division component, a second voltage division component and a detection chip; wherein:
the access end is electrically connected with the output end;
One end of the first voltage dividing component is electrically connected with the access end, and the other end of the first voltage dividing component is electrically connected with one end of the second voltage dividing component;
The other end of the second voltage division component is electrically connected with the ground terminal;
The detection chip is electrically connected with the detection end, the detection end is a connection point of the first voltage division component and the second voltage division component and is used for generating fault alarm information when the voltage of the connection point is detected to change.
5. The fire safety apparatus of claim 4, wherein,
The first voltage dividing assembly comprises a first resistor; the second voltage dividing assembly comprises a second resistor.
6. The fire safety apparatus of claim 4, wherein,
The fault detection module further comprises a filtering component, one end of the filtering component is electrically connected with one end of the second voltage division component, and the other end of the filtering component is electrically connected with the ground terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310919551.7A CN118209898A (en) | 2023-07-25 | 2023-07-25 | Fault detection circuit and safety fire-fighting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310919551.7A CN118209898A (en) | 2023-07-25 | 2023-07-25 | Fault detection circuit and safety fire-fighting equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118209898A true CN118209898A (en) | 2024-06-18 |
Family
ID=91447913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310919551.7A Pending CN118209898A (en) | 2023-07-25 | 2023-07-25 | Fault detection circuit and safety fire-fighting equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118209898A (en) |
-
2023
- 2023-07-25 CN CN202310919551.7A patent/CN118209898A/en active Pending
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