CN109995143A - A kind of electric equipment safety device - Google Patents
A kind of electric equipment safety device Download PDFInfo
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- CN109995143A CN109995143A CN201910332478.7A CN201910332478A CN109995143A CN 109995143 A CN109995143 A CN 109995143A CN 201910332478 A CN201910332478 A CN 201910332478A CN 109995143 A CN109995143 A CN 109995143A
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- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00001—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
- Fire Alarms (AREA)
Abstract
The invention discloses a kind of electric equipment safety devices, including main controller, monitoring device, detection module and processing module, the output end of the main controller is connect with the input terminal of the monitoring device, the output end of the monitoring device is connect with the input terminal of the detection module, the input terminal of the detection module is connect with the input terminal of the processing module, the detection module includes light intensity sensing module, smoke detection module, leak electricity detecting module, temperature sensing module and gallon module, the processing module includes warning system, fire-fighting linkage control system, emergency broadcase system and cctv surveillance and access control system.
Description
Technical field
The present invention relates to technical field of electric equipment, it particularly relates to a kind of electric equipment safety device.
Background technique
The electrical equipment of one large scale business area or Office Area is more, and power is larger, and can be used together, operating time
Also longer, therefore heat caused by the indoor controller switching equipment of distribution is very big, load is also very big, it is likely that will lead to voltage instability
It is fixed, the service life of electrical equipment is had significant effect, it is also possible to influence whether normal operation or even the band of an entire circuit
Carry out great security risk, in existing large-scale power grid, each electrical equipment regulation reagency is poor, failure can not self-regeneration, spirit
Sensitivity is not high, if one or two of electrical equipment since operation power is excessive, may result in entire circuit paralysis, can not normally transport
Row, and normal work and life is influenced, reduce unnecessary loss.
In conclusion how in advance whether monitoring electrical equipment is abnormal, and it is current for obtaining timely information feedback
Technical problem urgently to be solved.
Summary of the invention
Technical assignment of the invention is against the above deficiency, to provide a kind of electric equipment safety device, to solve above-mentioned ask
Topic.
The technical scheme of the present invention is realized as follows:
A kind of electric equipment safety device, including main controller, monitoring device, detection module and processing module, the master control
The output end of machine is connect with the input terminal of the monitoring device, the input of the output end of the monitoring device and the detection module
End connection, the input terminal of the detection module are connect with the input terminal of the processing module, and the detection module includes light intensity sense
Know that module, smoke detection module, electric leakage detecting module, temperature sensing module and gallon module, the processing module include
Warning system, fire-fighting linkage control system, emergency broadcase system and cctv surveillance and access control system.
Further, it is described electric leakage detecting module circuit include resistance R1, resistance R2, resistance R3, resistance R4, can power transformation
Hinder R5, variable resistance R6, resistance R7, capacitor C1, capacitor C2, capacitor C3, current transformer L, diode D1, diode D2, two
The anode of pole pipe D3 and transport and placing device U1, the transport and placing device U1 are connect with one end of the variable resistance R6, the variable resistance R6
The other end respectively with the resistance R7, the cathode of diode D3, capacitor C3 connect and ground, the cathode of the diode D3 connects
Ground, the resistance R7 are connected to power supply, the cathode of transport and placing device U1 one end with the resistance R3 and the resistance R4 respectively
Connection, the other end of the resistance R4 are connect with one end of the variable resistance R5, the other end of the variable resistance R5 and institute
The output end connection of transport and placing device U1 is stated, one end of the resistance R4 is connect with one end of the resistance R3, and the resistance R3's is another
One end is connect with one end of the capacitor C1, the other end of the capacitor C1 respectively with one end of the capacitor C2 and the resistance
One end of R2 connects, the other end of the resistance R2 respectively with the anode of the diode D2, the cathode of diode D1, resistance R1
One end connected with one end of the inductance L, the other end of the inductance L other end, the diode with the resistance R1 respectively
The other end connect and ground of the anode of D1, the cathode of diode D2 and the capacitor C2.
Further, the circuit of the temperature sensing module includes single-chip microcontroller U2, resistance R8, resistance R9, variable resistance
R10, variable resistance R11, capacitor C4, capacitor C5, the single-chip microcontroller U2 pin F1 respectively with the capacitor C4, resistance R8 and institute
One end connection of resistance R11 is stated, the other end of the resistance R11 and one end of power supply connect, the other end of the power supply and institute
State resistance R10 one end connection, the other end of the resistance R10 respectively with the resistance R9, capacitor C5 and the single-chip microcontroller U2
Pin F0 connection, the other end of the capacitor R9 connect and connects with one end of the capacitor C5, resistance R8, capacitor C4 respectively
Ground.
Further, the resistance value of the resistance R8 is 15K Ω, and the resistance value of the resistance R9 is 5K Ω, the resistance value of resistance R10
For 25K Ω, the resistance value of resistance R11 is 15K Ω.
Further, the warning system includes that server and monitoring device are watched in cloud, and it includes keeping away that server is watched in cloud
Thunder device, electromagnetic potential transformer, coupling capacitor, three-phase electricity capacitive equipment and power transformer and motor.
Further, the fire-fighting linkage control system includes that controller, alarm acousto-optic module, fire suppression module and fire are visited
Survey device module, the output end of the controller respectively with the alarm acousto-optic module, fire suppression module and the fire detector mould
Block connection.
Further, the output end of the fire-fighting linkage control system respectively with the warning system and the emergent broadcast
The output end of system connects.
Further, the fire suppression module is connect with fire hydrant module.
Beneficial effects of the present invention:
1, by detection module and processing module, it can detect and send in advance the potential electrical component of electrical equipment itself
Abnormal conditions are preferentially prevented and are solved, and the firmware safety of itself electrical equipment is not only protected, but also make entire circuit
Route is protected.
2, long-range monitoring and viewing can be carried out by monitoring device, thus the grasp of more convenient people, can and
When differentiation and processing, can be pre-processed by processing module and notify people carry out timely to take precautions against, it is more convenient
The use and safety of people.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is a kind of electric equipment safety device schematic diagram according to an embodiment of the present invention；
Fig. 2 is the circuit diagram of electric leakage detecting module according to an embodiment of the present invention；
Fig. 3 is the circuit diagram of temperature sensing module according to an embodiment of the present invention；
Fig. 4 is the structural block diagram of processing module according to an embodiment of the present invention；
Fig. 5 is the block diagram of fire-fighting linkage control system according to an embodiment of the present invention；
Fig. 6 is the structure chart of warning system according to an embodiment of the present invention.
In figure:
1, main controller；2, monitoring device；3, detection module；4, processing module；5, light intensity sensing module；6, smoke detection mould
Block；7, leak electricity detecting module；8, temperature sensing module；9, gallon module；10, warning system；11, fire protection linkage control system
System；12, emergency broadcase system；13, cctv surveillance and access control system.
Specific embodiment
In the description of the present invention, it is to be understood that, term " center ", " transverse direction ", " upper ", " under ", " left side ", " right side ", "
Vertically interior ", " outside " orientation or positional relationship of equal instructions in ", " level ", " top ", " bottom ", " be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.In addition, art
Language " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or implicitly indicate institute
The quantity of the technical characteristic of instruction." first " is defined as a result, the feature of " second " can explicitly or implicitly include one
Or more this feature.In the description of the present invention, unless otherwise indicated, " multiple " are meant that two or more.
In addition, term " including " and its any deformation, it is intended that cover and non-exclusive include.
The present invention will be further explained below with reference to the attached drawings and specific examples.
Embodiment one, as shown in figures 1 to 6, a kind of electric equipment safety device according to an embodiment of the present invention, including master control
Machine 1, monitoring device 2, detection module 3 and processing module 4, the input terminal of the output end of the main controller 1 and the monitoring device 2
Connection, the output end of the monitoring device 2 connect with the input terminal of the detection module 3, the input terminal of the detection module 3 and
The input terminal of the processing module 4 connects, and the detection module 3 includes light intensity sensing module 5, smoke detection module 6, electric leakage spy
Module 7, temperature sensing module 8 and gallon module 9 are surveyed, the processing module 4 includes warning system 10, fire protection linkage control
System 11, emergency broadcase system 12 and cctv surveillance and access control system 13.
Embodiment two, the circuit of the electric leakage detecting module 7 include resistance R1, resistance R2, resistance R3, resistance R4, can be changed
Resistance R5, variable resistance R6, resistance R7, capacitor C1, capacitor C2, capacitor C3, current transformer L, diode D1, diode D2,
The anode of diode D3 and transport and placing device U1, the transport and placing device U1 are connect with one end of the variable resistance R6, the variable resistance
The other end of R6 respectively with the resistance R7, the cathode of diode D3, capacitor C3 connect and ground, the cathode of the diode D3
Ground connection, the resistance R7 connects to power supply, the cathode of the transport and placing device U1 respectively with the resistance R3 and resistance R4 one
End connection, the other end of the resistance R4 connect with one end of the variable resistance R5, the other end of the variable resistance R5 and
The output end of the transport and placing device U1 connects, and one end of the resistance R4 is connect with one end of the resistance R3, the resistance R3's
The other end is connect with one end of the capacitor C1, the other end of the capacitor C1 respectively with one end of the capacitor C2 and the electricity
Hinder one end connection of R2, the other end of resistance R2 cathode, the resistance with the anode of the diode D2, diode D1 respectively
One end of R1 is connected with one end of the inductance L, the other end of the inductance L respectively with the other end of the resistance R1, two poles
The other end connect and ground of the anode of pipe D1, the cathode of diode D2 and the capacitor C2.
Embodiment three, the circuit of the temperature sensing module 8 include single-chip microcontroller U2, resistance R8, resistance R9, variable resistance
R10, variable resistance R11, capacitor C4, capacitor C5, the single-chip microcontroller U2 pin F1 respectively with the capacitor C4, resistance R8 and institute
One end connection of resistance R11 is stated, the other end of the resistance R11 and one end of power supply connect, the other end of the power supply and institute
State resistance R10 one end connection, the other end of the resistance R10 respectively with the resistance R9, capacitor C5 and the single-chip microcontroller U2
Pin F0 connection, the other end of the capacitor R9 connect and connects with one end of the capacitor C5, resistance R8, capacitor C4 respectively
Ground.
Example IV, the resistance value of the resistance R8 are 15K Ω, and the resistance value of the resistance R9 is 5K Ω, the resistance value of resistance R10
For 25K Ω, the resistance value of resistance R11 is 15K Ω.
Embodiment five, the warning system 10 include that server and monitoring device are watched in cloud, and cloud watches server and includes
Arrester, electromagnetic potential transformer, coupling capacitor, three-phase electricity capacitive equipment and power transformer and motor.
Embodiment six, the fire-fighting linkage control system 11 include controller, alarm acousto-optic module, fire suppression module and fire
Detector module, the output end of the controller respectively with the alarm acousto-optic module, fire suppression module and the fire detector
Module connection.
Embodiment seven, the output end of the fire-fighting linkage control system 11 respectively with the warning system 10 and the emergency
The output end of broadcast system 12 connects.
Embodiment eight, the fire suppression module are connect with fire hydrant module.
Specific workflow: carrying out long-range monitoring by monitoring device 2, while the light intensity in detection module 3 perceives mould
Block 5, smoke detection module 6, electric leakage detecting module 7, temperature sensing module 8 and gallon module 9 collective effect can be into
The more accurate detection of row can ensure so that the result of detection is relatively reliable, secured, and is handled by processing module 4
The efficiency of work, it is more convenient for people to use and safe, test electric current is sampled by current transformer, electric current is mutual
The secondary side output signal of sensor is transformed to the unipolarity that A/D module can acquire through circuits such as filtering, amplification, voltage increases
Voltage signal is sampled, after sampling a cycle, according to electricity when detecting the size of electric current according to the period of test electric current
The attenuation multiple of current transformer and the numerical value for promoting voltage, calculate actual current effective value by software algorithm.
In conclusion, by detection module 3 and processing module 4, can be examined in advance by means of above-mentioned technical proposal of the invention
The potential electrical component abnormal conditions of electrical equipment itself institute are surveyed and sent, is preferentially prevented and is solved, not only protected certainly
The firmware safety of body electrical equipment, but also entire circuit-line is made to be protected；It can be carried out by monitoring device long-range
Monitoring and viewing, so that the grasp of more convenient people, timely can differentiate and handle, can be carried out by processing module 4
It pre-processes and notifies people carry out timely to take precautions against, it is more convenient for people to use and safe.
The technical personnel in the technical field can readily realize the present invention with the above specific embodiments,.But it answers
Work as understanding, the present invention is not limited to above-mentioned specific embodiments.On the basis of the disclosed embodiments, the technical field
Technical staff can arbitrarily combine different technical features, to realize different technical solutions.
Claims (7)
1. a kind of electric equipment safety device, which is characterized in that including main controller (1), monitoring device (2), detection module (3) and
The output end of processing module (4), the main controller (1) is connect with the input terminal of the monitoring device (2), the monitoring device
(2) output end is connect with the input terminal of the detection module (3), the input terminal and the processing mould of the detection module (3)
The input terminal of block (4) connects, and the detection module (3) includes light intensity sensing module (5), smoke detection module (6), electric leakage detection
Module (7), temperature sensing module (8) and gallon module (9), the processing module (4) include warning system (10), fire-fighting
Coordinated control system (11), emergency broadcase system (12) and cctv surveillance and access control system (13)；
The circuit of electric leakage detecting module (7) includes resistance R1, resistance R2, resistance R3, resistance R4, variable resistance R5, can be changed
Resistance R6, resistance R7, capacitor C1, capacitor C2, capacitor C3, current transformer L, diode D1, diode D2, diode D3 and fortune
Device U1 is put, the anode of the transport and placing device U1 is connect with one end of the variable resistance R6, the other end point of the variable resistance R6
Not with the resistance R7, the cathode of diode D3, capacitor C3 connect and ground, the cathode of the diode D3 is grounded, the electricity
Resistance R7 is connected to power supply, and the cathode of the transport and placing device U1 is connect with one end of the resistance R3 and the resistance R4 respectively, described
The other end of resistance R4 is connect with one end of the variable resistance R5, the other end of the variable resistance R5 and the transport and placing device U1
Output end connection, one end of the resistance R4 connect with one end of the resistance R3, the other end of the resistance R3 with it is described
One end of capacitor C1 connects, and the other end of the capacitor C1 connects with one end of the capacitor C2 and one end of the resistance R2 respectively
Connect, the other end of the resistance R2 respectively with the anode of the diode D2, the cathode of diode D1, one end of resistance R1 and institute
State inductance L one end connection, the other end of the inductance L respectively with the other end of the resistance R1, the anode of diode D1, two
The other end connect and ground of the cathode of pole pipe D2 and the capacitor C2.
2. a kind of electric equipment safety device according to claim 1, which is characterized in that the temperature sensing module (8)
Circuit include single-chip microcontroller U2, resistance R8, resistance R9, variable resistance R10, variable resistance R11, capacitor C4, capacitor C5, the list
The pin F1 of piece machine U2 is connect with one end of the capacitor C4, resistance R8 and the resistance R11 respectively, and the resistance R11's is another
One end and one end of power supply connect, and the other end of the power supply is connect with one end of the resistance R10, and the resistance R10's is another
One end is connect with the pin F0 of the resistance R9, capacitor C5 and the single-chip microcontroller U2 respectively, the other end difference of the capacitor R9
With one end connect and ground of the capacitor C5, resistance R8, capacitor C4.
3. a kind of electric equipment safety device according to claim 2, which is characterized in that the resistance value of the resistance R8 is
The resistance value of 15K Ω, the resistance R9 are 5K Ω, and the resistance value of resistance R10 is 25K Ω, and the resistance value of resistance R11 is 15K Ω.
4. a kind of electric equipment safety device according to claim 1, which is characterized in that the warning system (10) includes
Server and monitoring device are watched in cloud, cloud watch server include arrester, electromagnetic potential transformer, coupling capacitor,
Three-phase electricity capacitive equipment and power transformer and motor.
5. a kind of electric equipment safety device according to claim 1, which is characterized in that the fire-fighting linkage control system
(11) include controller, alarm acousto-optic module, fire suppression module and fire detector module, the output end of the controller respectively with
The alarm acousto-optic module, fire suppression module are connected with the fire detector module.
6. a kind of electric equipment safety device according to claim 1, which is characterized in that the fire-fighting linkage control system
(11) output end is connect with the output end of the warning system (10) and the emergency broadcase system (12) respectively.
7. a kind of electric equipment safety device according to claim 6, which is characterized in that the fire suppression module and fire hydrant
Module connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910332478.7A CN109995143A (en) | 2019-04-24 | 2019-04-24 | A kind of electric equipment safety device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910332478.7A CN109995143A (en) | 2019-04-24 | 2019-04-24 | A kind of electric equipment safety device |
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| CN109995143A true CN109995143A (en) | 2019-07-09 |
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| CN201910332478.7A Pending CN109995143A (en) | 2019-04-24 | 2019-04-24 | A kind of electric equipment safety device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110380515A (en) * | 2019-08-06 | 2019-10-25 | 上海金智晟东电力科技有限公司 | A kind of power distribution network Experimental Network monitoring system |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011034253A1 (en) * | 2009-09-15 | 2011-03-24 | 한국전기안전공사 | Remote electrical safety diagnosis system and apparatus |
| EP2582886A1 (en) * | 2010-06-16 | 2013-04-24 | Mueller International, LLC | Infrastructure monitoring devices, systems, and methods |
| CN203811710U (en) * | 2014-04-04 | 2014-09-03 | 苏州工业职业技术学院 | Electric leakage protector testing system |
| CN104658163A (en) * | 2015-01-23 | 2015-05-27 | 中兴通讯股份有限公司 | Electric energy metering terminal and electrical fire monitoring method |
| CN105391166A (en) * | 2015-11-04 | 2016-03-09 | 国网山东省电力公司济宁供电公司 | Transformer station monitoring system and monitoring method thereof |
| CN205958660U (en) * | 2016-06-15 | 2017-02-15 | 江苏布诺科技有限公司 | Intelligent tester of earth leakage protection |
| CN206773446U (en) * | 2017-03-24 | 2017-12-19 | 朗高工程有限公司 | A kind of network building energy management, scheduling and control system |
| CN208015453U (en) * | 2018-01-08 | 2018-10-26 | 安徽裕新电力科技有限公司 | A kind of power distribution cabinet control system based on big data processing |
| CN208608731U (en) * | 2018-08-09 | 2019-03-15 | 滕德虎 | A kind of household block terminal |
-
2019
- 2019-04-24 CN CN201910332478.7A patent/CN109995143A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011034253A1 (en) * | 2009-09-15 | 2011-03-24 | 한국전기안전공사 | Remote electrical safety diagnosis system and apparatus |
| EP2582886A1 (en) * | 2010-06-16 | 2013-04-24 | Mueller International, LLC | Infrastructure monitoring devices, systems, and methods |
| CN203811710U (en) * | 2014-04-04 | 2014-09-03 | 苏州工业职业技术学院 | Electric leakage protector testing system |
| CN104658163A (en) * | 2015-01-23 | 2015-05-27 | 中兴通讯股份有限公司 | Electric energy metering terminal and electrical fire monitoring method |
| CN105391166A (en) * | 2015-11-04 | 2016-03-09 | 国网山东省电力公司济宁供电公司 | Transformer station monitoring system and monitoring method thereof |
| CN205958660U (en) * | 2016-06-15 | 2017-02-15 | 江苏布诺科技有限公司 | Intelligent tester of earth leakage protection |
| CN206773446U (en) * | 2017-03-24 | 2017-12-19 | 朗高工程有限公司 | A kind of network building energy management, scheduling and control system |
| CN208015453U (en) * | 2018-01-08 | 2018-10-26 | 安徽裕新电力科技有限公司 | A kind of power distribution cabinet control system based on big data processing |
| CN208608731U (en) * | 2018-08-09 | 2019-03-15 | 滕德虎 | A kind of household block terminal |
Non-Patent Citations (2)
| Title |
|---|
| CZLBJ: "《维库电子市场网》", 30 August 2011 * |
| 梁廷贵: "《现代集成电路实用手册 积分式A/D转换器 其它专用集成电路分册》", 28 February 2002 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110380515A (en) * | 2019-08-06 | 2019-10-25 | 上海金智晟东电力科技有限公司 | A kind of power distribution network Experimental Network monitoring system |
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