CN208580487U - Intelligent security guard early warning system - Google Patents
Intelligent security guard early warning system Download PDFInfo
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- CN208580487U CN208580487U CN201821224909.5U CN201821224909U CN208580487U CN 208580487 U CN208580487 U CN 208580487U CN 201821224909 U CN201821224909 U CN 201821224909U CN 208580487 U CN208580487 U CN 208580487U
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Abstract
The utility model discloses a kind of intelligent security guard early warning systems, including microprocessor, memory, power module, touch screen, alarm module, wireless communication module, mobile terminal, infrared sensor, Temperature Humidity Sensor, smoke sensor device, gas sensor, protocol conversion module and electric power fire monitor, electric power fire monitor includes single-chip microcontroller, power balance sampling module, current transformer, three-phase current acquisition module, zero sequence transformer, electric leakage sampling processing module, SPWM control circuit, parallel connection APF filter and serial port drive module；Power module includes voltage input end, first resistor, first capacitor, first diode, the second diode, the first triode, the first metal-oxide-semiconductor, second resistance and voltage output end.The utility model circuit structure is relatively simple, cost is relatively low, maintain easily, the safety and reliability of circuit is higher.
Description
Technical field
The utility model relates to safety-security area, in particular to a kind of intelligent security guard early warning system.
Background technique
With the continuous improvement of economic rapid development and living standards of the people, demand of the people to electric energy constantly increases,
Requirement to safe power supply is also higher and higher.Nationwide integrated power grid scale, integration formation；Interregional interconnection gradually increases；
Single-machine capacity and the continuous of overall system capacity are risen；The formation of large-scale electrical power system；The building of New-energy power system；Superelevation
The appearance of pressure, extra-high voltage long distance power transmission；So that the structure and the method for operation of electric system become increasingly complex.Electric system is answered
Polygamy directly threatens the safe and stable operation of system.When accident occurs for electric system, especially generation destruction system is stablized
When property and uncontrollable pernicious chain reaction, accident range is big, and power off time is long, caused by consequence it is extremely serious.
Voltage of power line fault is also to cause the principal element of voltage of power fire, therefore pass through detection voltage of power line
The operation conditions on road forecasts that fire is also one of the research direction of fire detection.Current security pre-warning system can exist in real time
The state parameter information of line or remote collection national grid, can random additions and deletions detection parameters, pacify electric power fire monitor
The flexibility of full information acquisition greatly enhances, and can satisfy requirement of the people to safety utilization of electric power.Traditional security pre-warning system it is interior
The component that portion's power supply circuit uses is more, and wiring is complicated, is not easy to safeguard, and hardware cost is higher.In addition, traditional security protection is pre-
The in-line power circuit of alert system lacks corresponding circuit protection function, such as: current-limiting protection function causes the safety of circuit
It is poor with reliability.
Utility model content
The technical problem to be solved by the present invention is in view of the above drawbacks of the prior art, provide a kind of circuit knot
Structure is relatively simple, cost is relatively low, maintains easily, the higher intelligent security guard early warning system of the safety and reliability of circuit.
The technical scheme adopted by the utility model to solve the technical problem is as follows: a kind of intelligent security guard early warning system is constructed,
Including microprocessor, memory, power module, touch screen, alarm module, wireless communication module, mobile terminal, infrared sensing
Device, Temperature Humidity Sensor, smoke sensor device, gas sensor, protocol conversion module and electric power fire monitor, the storage
Device, power module, touch screen, alarm module, wireless communication module, infrared sensor, Temperature Humidity Sensor, smoke sensor device,
Gas sensor and protocol conversion module are connect with the microprocessor, the wireless communication module and the mobile terminal without
Line connection, the electric power fire monitor are connect with the protocol conversion module；The electric power fire monitor include single-chip microcontroller,
Power balance sampling module, current transformer, three-phase current acquisition module, zero sequence transformer, electric leakage sampling processing module, SPWM
Control circuit, parallel connection APF filter and serial port drive module, the power balance sampling module, three-phase current acquisition module, leakage
Electric sampling processing module, SPWM control circuit and serial port drive module are connect with the single-chip microcontroller, the current transformer with
The three-phase current acquisition module connection, the zero sequence transformer are connect with the electric leakage sampling processing module, the parallel connection APF
Filter is connect with the SPWM control circuit, and the serial port drive module is connect with the protocol conversion module；
The power module includes voltage input end, first resistor, first capacitor, first diode, the second diode,
One triode, the first metal-oxide-semiconductor, second resistance and voltage output end, one end of the first resistor respectively with the voltage input
The grid of the one end at end, the collector of the first triode and the first metal-oxide-semiconductor connects, the other end of the first resistor respectively with institute
State the anode connection of one end of first capacitor, the anode of first diode and the second diode, the other end of the first capacitor
It is connect with the other end of the voltage input end, the cathode of the first diode is connect with the drain electrode of first metal-oxide-semiconductor, institute
The emitter for stating the first triode is connect with the other end of the first capacitor, the source electrode of first metal-oxide-semiconductor respectively with it is described
Voltage output end is connected with one end of second resistance, and the other end of the other end of the second resistance and the first capacitor connects
It connects, the resistance value of the second resistance is 28k Ω.
In intelligent security guard early warning system described in the utility model, the power module further includes third diode, institute
The anode for stating third diode is connect with one end of the first resistor, and the cathode of the third diode is respectively with described first
The connection of the grid of the collector of triode and the first metal-oxide-semiconductor, the model S-452T of the third diode.
In intelligent security guard early warning system described in the utility model, the power module further includes the second capacitor, described
One end of second capacitor is connect with the grid of first metal-oxide-semiconductor, the other end of second capacitor and first triode
Collector connection, the capacitance of second capacitor is 290pF.
In intelligent security guard early warning system described in the utility model, the power module further includes 3rd resistor, described
One end of 3rd resistor is connect with the emitter of first triode, the other end of the 3rd resistor and the first capacitor
Other end connection, the resistance value of the 3rd resistor is 35k Ω.
In intelligent security guard early warning system described in the utility model, first triode is NPN type triode, described
First metal-oxide-semiconductor is N-channel MOS pipe.
In intelligent security guard early warning system described in the utility model, the wireless communication module is bluetooth module, WIFI
Module, gsm module, GPRS module, CDMA module, CDMA2000 module, WCDMA module, TD-SCDMA module, Zigbee module
Or LoRa module.
The intelligent security guard early warning system for implementing the utility model has the advantages that due to being equipped with microprocessor, depositing
Reservoir, power module, touch screen, alarm module, wireless communication module, mobile terminal, infrared sensor, Temperature Humidity Sensor,
Smoke sensor device, gas sensor, protocol conversion module and electric power fire monitor；Power module includes voltage input end,
One resistance, first capacitor, first diode, the second diode, the first triode, the first metal-oxide-semiconductor, second resistance and voltage output
End, in-line power circuit of the power module relative to traditional security pre-warning system, the component used is less, due to saving
Some components, can reduce hardware cost in this way, in addition, the second capacitor separates direct current, second diode for logical exchange
For carrying out current-limiting protection, 3rd resistor is for carrying out current-limiting protection, therefore circuit structure is relatively simple, cost is relatively low, conveniently
Maintenance, the safety and reliability of circuit are higher.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram in the utility model intelligent security guard early warning system one embodiment；
Fig. 2 is the structural schematic diagram of electric power fire monitor in the embodiment；
Fig. 3 is the circuit diagram of power module in the embodiment.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
In the utility model intelligent security guard early warning system embodiment, the structural schematic diagram of the intelligent security guard early warning system is such as
Shown in Fig. 1.In Fig. 1, which includes microprocessor 1, memory 2, power module 3, touch screen 4, alarm
Module 5, wireless communication module 6, mobile terminal 7, infrared sensor 8, Temperature Humidity Sensor 9, smoke sensor device 10, gas sensing
Device 11, protocol conversion module 12 and electric power fire monitor 13, wherein memory 2, power module 3, touch screen 4, alarm module
5, wireless communication module 6, infrared sensor 8, Temperature Humidity Sensor 9, smoke sensor device 10, gas sensor 11 and protocol conversion
Module 12 is connect with microprocessor 1, and wireless communication module 6 and mobile terminal 7 are wirelessly connected, electric power fire monitor 13 and association
Conversion module 12 is discussed to connect.Above-mentioned mobile terminal 7 can be mobile phone or tablet computer etc..
In the present embodiment, which is bluetooth module, WIFI module, gsm module, GPRS module, CDMA mould
Block, CDMA2000 module, WCDMA module, TD-SCDMA module, Zigbee module or LoRa module.It is a variety of wireless by being arranged
Communication mode can not only increase the flexibility of communication, moreover it is possible to meet the needs of different user and different occasions.Especially
When it is using LoRa module, farther out, and communication performance is relatively stable, is suitable for higher to QoS requirement for communication distance
Occasion.
Fig. 2 is the structural schematic diagram of electric power fire monitor in the present embodiment, in Fig. 2, the electric power fire monitor 13 packet
Include single-chip microcontroller 131, power balance sampling module 132, current transformer 133, three-phase current acquisition module 134, zero sequence transformer
135, electric leakage sampling processing module 136, SPWM control circuit 137, parallel connection APF filter 138 and serial port drive module 139,
In, power balance sampling module 132, three-phase current acquisition module 134, electric leakage sampling processing module 136, SPWM control circuit
137 and serial port drive module 1389 connect with single-chip microcontroller 131, current transformer 133 is connect with three-phase current acquisition module 134,
Zero sequence transformer 135 is connect with electric leakage sampling processing module 136, and APF filter 138 in parallel is connect with SPWM control circuit 137,
Serial port drive module 139 is connect with protocol conversion module 12.
Specifically, the main function of electric power fire monitor 13 is that detection module realizes that load is live or long-range real-time
Harmonic parameters information collection and monitoring, while module 6 passes to mobile terminal by wireless communication the data of storage and acquisition
7.Voltage and current signal in electric system is converted into light current by zero sequence transformer 135 and current transformer 133 respectively
Signal is pressed, is converted into analog voltage signal input, and carry out voltage and current analog-to-digital conversion, tested letter is obtained by single-chip microcontroller 131
Number frequency.Operation is carried out to digital signal, calculates required power quality parameter, then pass through 7 real-time monitoring of mobile terminal point
It analyses these data and transfers out, and filtered using the mixed active of SPWM control circuit 137 and parallel connection APF filter 138
Device filters out associated harmonic.
Temperature Humidity Sensor 9, smoke sensor device 10 and gas sensor 11 can be acquired due to voltage overload or electric current
The signals such as the indoor temperature and humidities such as fire caused by overload signal, smoke signal and carbon monoxide, are then transferred to microprocessor 1,
Corresponding signal, module 6 sends mobile terminal 7 to microprocessor 1 by wireless communication again.The utility model is according to failure electricity
Arc is the main triggering factors of voltage of power fire, and on the basis of exploring fault electric arc combustion characteristics, is proposed failure electricity
The detection of arc is introduced into the monitoring and alarm of voltage of power fire, to improve the alarm velocity of electrical fire, realizes electrical
The forecast function of fire；The leakage that protocol conversion module 12 and electric power fire monitor 13 can further in collection site is set
The parameters of electric power such as electricity, electric current, voltage and short circuit, overload, over-voltage, under-voltage, break equal fault message, passes through protocol conversion module 12
It is converted into corresponding data format, and module 6 is transmitted to mobile terminal 7 by wireless communication by microprocessor 1；Mobile terminal 7
Data are read out, protect, monitor and analyze based on the received, and will alarm, information mould by wireless communication is set and controlled
Block 6 sends microprocessor 1 to, then sends electric power fire monitor 13 to by protocol conversion module 12 by microprocessor 1, in this way
It can prevent and handle the situation of voltage of power overload.
Fig. 3 is the circuit diagram of power module in the present embodiment, and in Fig. 3, which includes voltage input end
Vin, first resistor R1, first capacitor C1, first diode D1, the second diode D2, the first triode Q1, the first metal-oxide-semiconductor M1,
Second resistance R2 and voltage output end Vo, wherein one end of first resistor R1 respectively with one end of voltage input end Vin, first
The connection of the grid of the collector of triode Q1 and the first metal-oxide-semiconductor M1, the other end of first resistor R1 is respectively with first capacitor C1's
The anode of one end, the anode of first diode D1 and the second diode D2 connects, the other end and voltage input of first capacitor C1
The other end connection of Vin is held, the cathode of first diode D1 is connect with the drain electrode of the first metal-oxide-semiconductor M1, the hair of the first triode Q1
Emitter-base bandgap grading is connect with the other end of first capacitor C1, the source electrode of the first metal-oxide-semiconductor M1 respectively with voltage output end Vin and second resistance R2
One end connection, the other end of second resistance R2 connect with the other end of first capacitor C1.
In-line power circuit of the power module 3 relative to traditional security pre-warning system, the component used is less, by
In saving some components, hardware cost can be reduced in this way, in addition, the second capacitor separates direct current for logical exchange, second
Diode for carrying out current-limiting protection, 3rd resistor for carrying out current-limiting protection, therefore circuit structure is relatively simple, cost compared with
It is low, maintain easily, the safety and reliability of circuit it is higher.It is noted that in the present embodiment, the resistance value of second resistance R2
For 28k Ω, certainly, in practical applications, the resistance value of second resistance R2 can adjust accordingly as the case may be.
In normal work, the first metal-oxide-semiconductor M1 conducting, the drain-source voltage of the first metal-oxide-semiconductor M1 is in low to the power module 3
The current potential of level, the anode of the second diode D2 is back at the drain electrode of the first metal-oxide-semiconductor M1 by first diode D1, because the
The drain electrode of one metal-oxide-semiconductor M1 is in low potential, so the anode of the second diode D2 is also at low potential, not to the first triode Q1
Generate biasing；When the first metal-oxide-semiconductor M1 overcurrent, the drain-source voltage of the first metal-oxide-semiconductor M1 is risen rapidly, and first diode D1 is born
Backward voltage cut-off, because of the not good enough effect of first resistor R1 and first capacitor C1, the anode potential of the second diode D2 starts
Increase, until the first triode Q1 be connected, the first metal-oxide-semiconductor M1 reliable turn-off and be in off state, limit overcurrent.
In the present embodiment, the first triode Q1 is NPN type triode, and the first metal-oxide-semiconductor M1 is N-channel MOS pipe.Certainly, exist
In practical application, the first triode Q1 may be PNP type triode, and the first metal-oxide-semiconductor M1 may be P-channel metal-oxide-semiconductor, but this
When circuit structure also accordingly to change.
In the present embodiment, which further includes third diode D3, the anode and first resistor of third diode D3
One end of R1 connects, the cathode of the third diode D3 grid with the collector of the first triode Q1 and the first metal-oxide-semiconductor M1 respectively
Connection.Third diode D3 is Current Limiting Diodes, current-limiting protection is carried out for the grid current to the first metal-oxide-semiconductor M1, with into one
The safety and reliability of step enhancing circuit.It is noted that in the present embodiment, the model S- of third diode D3
452T, certainly, in real-time application, third diode D3 can also have the diode of similar functions using other models.
In the present embodiment, which further includes the second capacitor C2, one end of the second capacitor C2 and the first metal-oxide-semiconductor M1
Grid connection, the other end of the second capacitor C2 connect with the collector of the first triode Q1.Second capacitor C2 is coupled capacitor,
For preventing the interference between the first triode Q1 and the first metal-oxide-semiconductor M1, further to enhance the safety of circuit and reliable
Property.It is noted that the capacitance of the second capacitor C2 is 290pF in the present embodiment, certainly, in practical applications, the second electricity
The capacitance for holding C2 can adjust accordingly as the case may be.
In the present embodiment, which further includes 3rd resistor R3, one end of 3rd resistor R3 and the first triode Q1
Emitter connection, the other end of 3rd resistor R3 connect with the other end of first capacitor C1.3rd resistor R3 is current-limiting resistance,
Current-limiting protection is carried out for the emitter current to the first triode Q1, to further enhance current limitation effect.It is noted that
In the present embodiment, the resistance value of 3rd resistor R3 is 35k Ω, and certainly, in practical applications, the resistance value of 3rd resistor R3 can basis
Concrete condition adjusts accordingly.
In short, in the present embodiment, in-line power circuit of the power module 3 relative to traditional security pre-warning system makes
Component is less, and circuit structure is relatively simple, maintains easily, and due to saving some components, can reduce so hard
Part cost.In addition, being equipped with current-limiting resistance in the power module 3, therefore the safety and reliability of circuit is higher.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (6)
1. a kind of intelligent security guard early warning system, which is characterized in that including microprocessor, memory, power module, touch screen, report
Alert module, wireless communication module, mobile terminal, infrared sensor, Temperature Humidity Sensor, smoke sensor device, gas sensor, association
Discuss conversion module and electric power fire monitor, the memory, power module, touch screen, alarm module, wireless communication module,
Infrared sensor, Temperature Humidity Sensor, smoke sensor device, gas sensor and protocol conversion module connect with the microprocessor
It connects, the wireless communication module and the mobile terminal are wirelessly connected, the electric power fire monitor and the protocol conversion mould
Block connection；The electric power fire monitor includes single-chip microcontroller, power balance sampling module, current transformer, three-phase current acquisition
Module, zero sequence transformer, electric leakage sampling processing module, SPWM control circuit, parallel connection APF filter and serial port drive module, institute
State power balance sampling module, three-phase current acquisition module, electric leakage sampling processing module, SPWM control circuit and serial port drive mould
Block is connect with the single-chip microcontroller, and the current transformer is connect with the three-phase current acquisition module, the zero sequence transformer
It is connect with the electric leakage sampling processing module, the parallel connection APF filter is connect with the SPWM control circuit, and the serial ports drives
Dynamic model block is connect with the protocol conversion module；
The power module includes voltage input end, first resistor, first capacitor, first diode, the second diode, the one or three
Pole pipe, the first metal-oxide-semiconductor, second resistance and voltage output end, one end of the first resistor respectively with the voltage input end
The grid of one end, the collector of the first triode and the first metal-oxide-semiconductor connects, and the other end of the first resistor is respectively with described the
The anode of one end of one capacitor, the anode of first diode and the second diode connects, the other end of the first capacitor and institute
The other end connection of voltage input end is stated, the cathode of the first diode connect with the drain electrode of first metal-oxide-semiconductor, and described the
The emitter of one triode is connect with the other end of the first capacitor, the source electrode of first metal-oxide-semiconductor respectively with the voltage
Output end is connected with one end of second resistance, and the other end of the second resistance is connect with the other end of the first capacitor, institute
The resistance value for stating second resistance is 28k Ω.
2. intelligent security guard early warning system according to claim 1, which is characterized in that the power module further includes the three or two
The anode of pole pipe, the third diode is connect with one end of the first resistor, the cathode of the third diode respectively with
The grid connection of the collector and the first metal-oxide-semiconductor of first triode, the model S-452T of the third diode.
3. intelligent security guard early warning system according to claim 2, which is characterized in that the power module further includes the second electricity
Hold, one end of second capacitor is connect with the grid of first metal-oxide-semiconductor, the other end of second capacitor and described first
The collector of triode connects, and the capacitance of second capacitor is 290pF.
4. intelligent security guard early warning system according to claim 3, which is characterized in that the power module further includes third electricity
Resistance, one end of the 3rd resistor connect with the emitter of first triode, the other end of the 3rd resistor with it is described
The other end of first capacitor connects, and the resistance value of the 3rd resistor is 35k Ω.
5. intelligent security guard early warning system according to any one of claims 1 to 4, which is characterized in that the one or three pole
Pipe is NPN type triode, and first metal-oxide-semiconductor is N-channel MOS pipe.
6. intelligent security guard early warning system according to any one of claims 1 to 4, which is characterized in that the wireless communication
Module is bluetooth module, WIFI module, gsm module, GPRS module, CDMA module, CDMA2000 module, WCDMA module, TD-
SCDMA module, Zigbee module or LoRa module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821224909.5U CN208580487U (en) | 2018-07-31 | 2018-07-31 | Intelligent security guard early warning system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821224909.5U CN208580487U (en) | 2018-07-31 | 2018-07-31 | Intelligent security guard early warning system |
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| Publication Number | Publication Date |
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| CN208580487U true CN208580487U (en) | 2019-03-05 |
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| CN201821224909.5U Active CN208580487U (en) | 2018-07-31 | 2018-07-31 | Intelligent security guard early warning system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112511389A (en) * | 2020-11-06 | 2021-03-16 | 广州理工学院 | Multi-sensor data acquisition and transmission system |
-
2018
- 2018-07-31 CN CN201821224909.5U patent/CN208580487U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112511389A (en) * | 2020-11-06 | 2021-03-16 | 广州理工学院 | Multi-sensor data acquisition and transmission system |
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