CN207148599U - A kind of electric fire hazard detection device - Google Patents
A kind of electric fire hazard detection device Download PDFInfo
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- CN207148599U CN207148599U CN201721171676.2U CN201721171676U CN207148599U CN 207148599 U CN207148599 U CN 207148599U CN 201721171676 U CN201721171676 U CN 201721171676U CN 207148599 U CN207148599 U CN 207148599U
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Abstract
The utility model discloses a kind of electric fire hazard detection device, including：Governor circuit, and the signal deteching circuit with governor circuit communication connection respectively, alarm control circuit, auxiliary control circuit；Signal to be detected is detected by the signal deteching circuit, the governor circuit carries out data processing after the signal detected is obtained from the signal deteching circuit, and the data message after processing is sent to the alarm control circuit and the auxiliary control circuit, the alarm control circuit and the auxiliary control circuit corresponding operating is performed according to the data message after the processing.The utility model realizes the purpose for effectively avoiding producing electrical fire because of electric fault by the monitoring and early warning comprehensive to electrical fire risk parameters.
Description
Technical field
Fire-fighting equipment field is the utility model is related to, more particularly to a kind of electric fire hazard detection device.
Background technology
With the growth year by year of power consumption, latent disaster hidden-trouble also increases year by year, and electrical fire is increasingly becoming all kinds of fire
Leading role in calamity, the loss of people's life and property is more heavy as caused by electrical fire, therefore to the prison of electrical fire
Control tool is of great significance.
Electric fire hazard detection device is to carry out effective monitoring for distribution line Leaked Current of Line to Ground, is prevented due to electric wiring pair
Ground electric leakage produces electrical fire.Electric fire hazard detection device carries out alarm performance for look-ahead fire or in time to fire
Considerable effect, become the main risk prevention instrumentses for reducing electrical fire.
Current dependent formula electric fire hazard detection device, one side function is relatively simple, can only detect residual current, no
Energy while detection temperature, on the other hand due to no independent alarm unit, it is necessary to be used cooperatively, therefore apply with monitoring device
It is subject to certain restrictions.
Based on the problem present on, this application provides the technical scheme for solving technical problem.
The content of the invention
The purpose of this utility model is to provide a kind of electric fire hazard detection device, by entirely square to electrical fire risk parameters
The monitoring and early warning of position, realize the purpose for effectively avoiding producing electrical fire because of electric fault.
The technical scheme that the utility model is provided is as follows：
A kind of electric fire hazard detection device, including：Governor circuit, and the letter with governor circuit communication connection respectively
Number detection circuit, alarm control circuit, auxiliary control circuit；Signal to be detected, institute are detected by the signal deteching circuit
State governor circuit and obtained from the signal deteching circuit and data processing is carried out after the signal detected, and by the data after processing
Information is sent to the alarm control circuit and the auxiliary control circuit, the alarm control circuit and the auxiliary control
Circuit processed performs corresponding operating according to the data message after the processing.
Preferably, the governor circuit includes：Singlechip chip U6；The analog inputs of A4 1 of the singlechip chip U6
End, the analog input ends of A0 77, the analog input ends of A1 78, the analog input ends of A2 79, the analog input ends of A3 80 point
Do not electrically connected with the signal deteching circuit；The data control terminals of P4.6 52 of the singlechip chip U6, the data controls of P2.2 27
End processed, the data control terminals of P8.0 60, the data control terminals of P8.1 61, the data control terminals of P8.2 62 respectively with the controlling alarm
Circuit electrically connects；The data control terminals of 17~P1.7 of P1.0 24 of the singlechip chip U6, the data control terminals of P5.6 56,
The data control terminals of P5.7 57, the data control terminals of P7.2 58, the data control terminals of UCA0STE 38, the data communications of UCA0SIMO 39
End, the data communication ends of UCA0SOMI 40 electrically connect with the auxiliary control circuit respectively.
Preferably, the signal deteching circuit includes：Residual current detection unit；The residual current detection unit includes
Amplifier chip U11；Electric capacity C45 first end, diode D5 anode tap, diode D6 cathode terminal, the first of resistance R50
End, resistance R48 first end electrically connect jointly with the first end of creepage mutual inductor；Electric capacity C44 first end, the diode D5
Cathode terminal, the anode tap of the diode D6, the second end of the resistance R50, resistance R49 first end and the electric leakage it is mutual
Second end of sensor electrically connects jointly；The first input positive terminal of the amplifier chip U11 respectively with the resistance R48 the
Two ends, resistance R4 first end electrical connection；The amplifier chip U11 first input negative pole end respectively with the resistance R49
The second end, resistance R5 first end electrical connection；The second end of the resistance R4 respectively with the amplifier chip U11 second
Input negative pole end, the electrical connection of the second output end；The first output end of the amplifier chip U11 respectively with the resistance R5
Two ends, resistance R19 first end electrical connection；The second end of the resistance R19, electric capacity C17 first end jointly with the monolithic
The movement piece U6 analog input ends of A4 1 electrical connection；The amplifier chip U11 second input positive terminal respectively with resistance
R61 first end, the electrical connection of resistance R62 first end；The second end of the resistance R62 electrically connects with reference voltage feeder ear；
The power positive end of the amplifier chip U11 electrically connects with first voltage feeder ear；The power supply of the amplifier chip U11 is born
Extremely, the second end of the resistance R61, the second end of the electric capacity C17, the second end of the electric capacity C44, the electric capacity C45
The second end jointly with simulation publicly electrically connect.
Preferably, the signal deteching circuit also includes：Temperature detecting unit；The temperature detecting unit includes at least one
Road temperature sensing circuit；The temperature sensing circuit includes：The analog input ends of A0 77 of the singlechip chip U6, resistance
R14 first end electrically connects with the first end of temperature sensor jointly；The second end of the resistance R14, resistance R7 first end
Electrically connected jointly with reference voltage feeder ear；The second end of the resistance R7 electrically connects with resistance R8 first end；The resistance
R8 the second end, the second end of the temperature sensor publicly electrically connect with simulation jointly.
Preferably, the alarm control circuit includes：Trip unit；The trip unit includes relay K1, triode
Q2；The data control terminals of P4.6 52 electricity that the base terminal of the triode Q2 passes through the current-limiting resistance R2 and singlechip chip U6
Connection；The collector terminal of the triode Q2 respectively with the negative pole end of the coil of the relay K1 and diode D3 anode
End electrical connection；The positive terminal of the coil of the relay K1 and the diode D3 cathode terminal jointly with second voltage feeder ear
Electrical connection；The emitter terminal of the triode Q2 publicly electrically connects with numeral.
Preferably, the alarm control circuit also includes：Buzzer unit；The buzzer unit includes passive buzzer
B1, triode Q1；The data of P2.2 27 that the base terminal of the triode Q1 passes through the current-limiting resistance R7 and singlechip chip U6
Control terminal electrically connects；The collector terminal of the triode Q1 first end with the passive buzzer B1, diode D1 respectively
The first end electrical connection of anode tap, electric capacity C1；It is the second end of the passive buzzer B1, the diode D1 cathode terminals, described
Electric capacity C1 the second end electrically connects with second voltage feeder ear jointly；The emitter terminal of the triode Q1 is publicly electric with numeral
Connection.
Preferably, the alarm control circuit also includes：Indicator unit；The indicator unit includes light emitting diode
LED1, LED 2, LED 3；The data control terminals of P8.1 61 of the singlechip chip U6 pass through limit
Leakage resistance R5 electrically connects with the anode tap of the LED 1；The data of P8.0 60 control of the singlechip chip U6
End is electrically connected by current-limiting resistance R6 with the anode tap of the LED 2；The P8.2 62 of the singlechip chip U6
Data control terminal is electrically connected by current-limiting resistance R8 with the anode tap of the LED 3；The LED 1
Cathode terminal, cathode terminal, the cathode terminal of the LED 3 of the LED 2 it is jointly public with numeral
Ground electrically connects.
Preferably, the auxiliary control circuit includes：Address encoding unit；The address encoding unit includes toggle switch
SW1；1~8 port of the toggle switch SW1 is electrically connected with tertiary voltage feeder ear respectively by exclusion RIC1 and RIC2；Institute
State toggle switch SW1 1~8 port also data control terminals one of 17~P1.7 of P1.0 24 with the singlechip chip U6 respectively
One corresponding electrical connection；9~16 ports of the toggle switch SW1 publicly electrically connect with numeral respectively.
Preferably, the auxiliary control circuit also includes：Push-button unit；The push-button unit includes key switch S1, pressed
Key switch S2, key switch S3；The first end of the key switch S1, the first end of the key switch S2, the button are opened
The first end for closing S3 is electrically connected with tertiary voltage feeder ear respectively by exclusion RIC3；The first end of the key switch S1 also with
The data control terminals of P5.6 56 electrical connection of the singlechip chip U6；The first end of the key switch S2 also with the monolithic
The movement piece U6 data control terminals of P5.7 57 electrical connection；The first end of the key switch S3 also with the singlechip chip U6
The data control terminals of P7.2 58 electrical connection；The second end of the key switch S1, the second end, described of the key switch S2
Key switch S3 the second end publicly electrically connects with numeral jointly.
Preferably, the auxiliary control also includes：Communication unit；The communication unit includes communication chip U10；It is described logical
News chip U10 RO 1 sends data terminal and electrically connected with the data communication ends of UCA0SOMI 40 of the singlechip chip U6；It is described
Communication chip U10 RE 2 sends control terminal, DE 3 receives the control terminal UCA0STE 38 with the singlechip chip U6 respectively
Data control terminal electrically connects；The DI 4 of the communication chip U10 receives the UCA0SIMO of data terminal and the singlechip chip U6
39 data communication ends electrically connect；The A6 data communications end of the communication chip U10 by fuse F2 respectively with discharge tube first
The cathode terminal electrical connection of anode tap, Transient Suppression Diode；The data communication ends of B 7 of the communication chip U10 pass through fuse
The second plate end with the discharge tube, the anode tap of the Transient Suppression Diode electrically connect F1 respectively；The communication chip
U10 power end electrically connects with communication power voltage supply end；The earth terminal of the communication chip U10, first the moon of the discharge tube
Extremely, the second cathode terminal of the discharge tube is jointly with communicatively electrically connecting.
Compared with prior art, a kind of electric fire hazard detection device of the present utility model comprises at least following a kind of beneficial to effect
Fruit：
1st, in the utility model, data acquisition is carried out using multi-analog input channel, can not only detect remaining electricity
Stream, moreover it is possible to while multi way temperature is detected, the comprehensive monitoring to electrical fire risk parameters is realized, ensures Electrical Safety, prevents
Potential safety hazard.
2nd, in the utility model, sound and light alarm is carried out to alarm using buzzer unit and indicator unit, without with
Monitoring device is used cooperatively, and when fire occurs, Field Force can more directly obtain warning message and withdraw in time.
3rd, in the utility model, linked using trip unit and outside sorts of systems, for example, with fire-fighting system pair
Connect and realize fire-fighting link, current supply circuit is cut off in the case where fire occurs.
4th, in the utility model, geocoding is carried out to electric fire hazard detection device using address encoding unit, it is different
Address code represent different search coverages, facilitate monitoring system to determine the specific orientation of fire.
5th, in the utility model, data are uploaded to by monitoring system using communication unit, realize remote centralized management and
Monitoring, and when occurring abnormal, emergency arrangement is made in time.
Brief description of the drawings
Below by a manner of clearly understandable, preferred embodiment is described with reference to the drawings, to a kind of gas fire detecting arrangement
Above-mentioned characteristic, technical characteristic, advantage and its implementation be further described.
Fig. 1 is a kind of structure chart of electric fire hazard detection device one embodiment of the utility model；
Fig. 2 is a kind of structure chart of another embodiment of electric fire hazard detection device of the utility model；
Fig. 3 is a kind of structure chart of another embodiment of electric fire hazard detection device of the utility model；
Fig. 4 is a kind of structure chart of another embodiment of electric fire hazard detection device of the utility model；
Fig. 5 is a kind of structure chart of another embodiment of electric fire hazard detection device of the utility model；
Fig. 6 is a kind of structure chart of another embodiment of electric fire hazard detection device of the utility model；
Fig. 7 is a kind of structure chart of another embodiment of electric fire hazard detection device of the utility model；
Fig. 8 is a kind of structure chart of another embodiment of electric fire hazard detection device of the utility model；
Fig. 9 is a kind of structure chart of another embodiment of electric fire hazard detection device of the utility model；
Figure 10 is a kind of structure chart of another embodiment of electric fire hazard detection device of the utility model；
Figure 11 is a kind of structure chart of another embodiment of electric fire hazard detection device of the utility model.
Embodiment
In order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art, accompanying drawing will be compareed below
Illustrate specific embodiment of the present utility model.It should be evident that drawings in the following description are only of the present utility model one
A little embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to these
Accompanying drawing obtains other accompanying drawings, and obtains other embodiments.
To make simplified form, the part related to the utility model is only schematically show in each figure, they are not
Represent its practical structures as product.In addition, so that simplified form readily appreciates, there is identical structure or work(in some figures
The part of energy, only symbolically depicts one of those, or only marked one of those.Herein, "one" is not only
Represent " only this ", the situation of " more than one " can also be represented.
The utility model provides a kind of one embodiment of electric fire hazard detection device, with reference to shown in figure 1 and Fig. 2, bag
Include：Governor circuit, and the signal deteching circuit with governor circuit communication connection respectively, alarm control circuit, auxiliary control
Circuit processed；Signal to be detected is detected by the signal deteching circuit, the governor circuit is from the signal deteching circuit
Obtain and data processing carried out after the signal that detects, and the data message after processing sent to the alarm control circuit and
The auxiliary control circuit, the alarm control circuit and the auxiliary control circuit are according to the data message after the processing
Perform corresponding operating.
Specifically, in the present embodiment, signal deteching circuit includes residual current detection unit, temperature detecting unit；Report
Alert control circuit includes trip unit, buzzer unit, indicator unit；Auxiliary control circuit includes address encoding unit, pressed
Key unit and communication unit；Residual current detection unit is used to detect the residual current signal on outside line；Temperature detection list
Member is used for the temperature signal for detecting external temperature sensor collection；Governor circuit reception residual current detection unit detects surplus
Data processing is carried out after the temperature signal that aftercurrent signal and temperature detecting unit detect, and by communication unit by after processing
Data transfer to external inspecting device.When residual current and temperature alarming occurs, main control unit control trip unit performs
Safety interaction function, buzzer unit with external system perform acoustic alarm function, indicator unit performs light alarm function；Ground
Location coding unit is used to encode electric fire hazard detection device；Push-button unit is used to carry out work(to electric fire hazard detection device
Can self-test.
Another embodiment is provided on the basis of above example, with reference to figure 3, the governor circuit includes：Single-chip microcomputer
Chip U6；The analog input ends of A4 1 of the singlechip chip U6, the analog input ends of A0 77, the analog inputs of A1 78
End, the analog input ends of A2 79, the analog input ends of A3 80 electrically connect with the signal deteching circuit respectively；The single-chip microcomputer
The chip U6 data control terminals of P4.6 52, the data control terminals of P2.2 27, the data control terminals of P8.0 60, the control of the data of P8.1 61
End, the data control terminals of P8.2 62 electrically connect with the alarm control circuit respectively；The P1.0 17 of the singlechip chip U6~
The data control terminals of P1.7 24, the data control terminals of P5.6 56, the data control terminals of P5.7 57, the data control terminals of P7.2 58,
The data control terminals of UCA0STE 38, the data communication ends of UCA0SIMO 39, the data communication ends of UCA0SOMI 40 respectively with it is described auxiliary
Control circuit is helped to electrically connect.
Specifically, in the present embodiment, singlechip chip U1 model MSP430F5418a, highest dominant frequency 25MHz can
Communicate with the data of quick processing collection and between alarm control circuit and auxiliary control circuit.Single-chip microcomputer U6 A0~A3
Analog input port receives 4 road temperature signals respectively, and A4 analog inputs port receives 1 road residual current signal.Single-chip microcomputer
The warm reliability number of reception and residual current signal are AD converted, and pass through UCA0STE, UCA0SIMO, UCA0SOMI port
Result is exported to communicating circuit.When there is alarm, controlled by P2.2 port controlling buzzer units and by P8.0 ports
Indicator unit processed carries out sound and light alarm, and performs combined operation by P4.6 port controllings trip unit.
Another embodiment is provided on the basis of above example, with reference to shown in figure 4, the residual current detection unit
Including amplifier chip U11；Electric capacity C45 first end, diode D5 anode tap, diode D6 cathode terminal, resistance R50
First end, resistance R48 first end electrically connect jointly with the first end of creepage mutual inductor；Electric capacity C44 first end, two pole
First end and the leakage of pipe D5 cathode terminal, the anode tap of the diode D6, the second end of the resistance R50, resistance R49
Second end of electric transformer electrically connects jointly；The amplifier chip U11 first input positive terminal respectively with the resistance R48
The second end, resistance R4 first end electrical connection；The amplifier chip U11 first input negative pole end respectively with the resistance
R49 the second end, resistance R5 first end electrical connection；The second end of the resistance R4 is respectively with the amplifier chip U11's
Second input negative pole end, the electrical connection of the second output end；The first output end of the amplifier chip U11 respectively with the resistance R5
The second end, resistance R19 first end electrical connection；The second end of the resistance R19, electric capacity C17 first end jointly with it is described
The singlechip chip U6 analog input ends of A4 1 electrical connection；The amplifier chip U11 second input positive terminal respectively with
Resistance R61 first end, the electrical connection of resistance R62 first end；The second end of the resistance R62 is electrically connected with reference voltage feeder ear
Connect；The power positive end of the amplifier chip U11 electrically connects with first voltage feeder ear；The electricity of the amplifier chip U11
Source negative pole end, the second end of the resistance R61, the second end of the electric capacity C17, the second end of the electric capacity C44, the electric capacity
C45 the second end publicly electrically connects with simulation jointly.
Specifically, in the present embodiment, amplifier chip U11 model SGM8552 is a kind of for small-signal survey
The binary channels high precision operating amplifier of amount.Interface L1 connects outside creepage mutual inductor with LCOM, detects surplus on outside line
Aftercurrent, voltage signal is converted into by sampling resistor R50, forming differential mode by amplifier U11 and R4, R48, R5, R49 puts
Big circuit is so as to amplify voltage signal, and multiplication factor A=R4/R48=100, the voltage signal of collection is amplified to pass through interface
CURR1 connection singlechip chips U6 A4 analog inputs port.Reference voltage power supply is VREF1, and first voltage power supply is
AVCC3.3V, simulation is publicly AGND.
Another embodiment is provided on the basis of above example, with reference to shown in figure 5, the temperature detecting unit includes
At least temperature sensing circuit all the way；The temperature sensing circuit includes：The analog inputs of A0 77 of the singlechip chip U6
End, resistance R14 first end electrically connect with the first end of temperature sensor jointly；The second end of the resistance R14, resistance R7
First end electrically connects with reference voltage feeder ear jointly；The second end of the resistance R7 electrically connects with resistance R8 first end；Institute
Resistance R8 the second end, the second end of the temperature sensor is stated publicly to electrically connect with simulation jointly.
Specifically, in the present embodiment, there can be multi-channel temperature measurement circuit, all referring to following connected modes.Interface T1
External temperature sensor is connected with TCOM.Resistance R14 partial pressure reference voltages, TEMP1 connection singlechip chips U6 A0 ports are adopted
Collect temperature AD values.
In the utility model, data acquisition is carried out using multi-analog input channel, can not only detect residual current,
Multi way temperature can also be detected simultaneously, realizes the comprehensive monitoring to electrical fire risk parameters, ensured Electrical Safety, prevented safety
Hidden danger.
Another embodiment is provided on the basis of above example, with reference to shown in figure 6, the trip unit includes relay
Device K1, triode Q2；The base terminal of the triode Q2 is counted by current-limiting resistance R2 and the singlechip chip U6 P4.6 52
Electrically connected according to control terminal；The collector terminal of the triode Q2 negative pole end with the coil of the relay K1 and two poles respectively
Pipe D3 anode tap electrical connection；The positive terminal of the coil of the relay K1 and the diode D3 cathode terminal are jointly with second
Power voltage supply end electrically connects；The emitter terminal of the triode Q2 publicly electrically connects with numeral.
Specifically, in the present embodiment, when residual current or temperature are alarmed, singlechip chip U6 P4.6
(52 pin) exports high level, and triode Q2 conductings, relay K1 coil is powered, K1 normally opened contact closure, so as to perform peace
Full linkage function.Second voltage power supply is VCC-5V, and numeral is publicly GND.
In the utility model, linked using trip unit and outside sorts of systems, such as docked with fire-fighting system
Fire-fighting link is realized, current supply circuit is cut off in the case where fire occurs.
Another embodiment is provided on the basis of above example, with reference to shown in figure 7, the buzzer unit includes nothing
Source buzzer B1, triode Q1；The base terminal of the triode Q1 passes through the current-limiting resistance R7's and singlechip chip U6
The data control terminals of P2.2 27 electrically connect；The collector terminal of the triode Q1 respectively the first end with the passive buzzer B1,
The first end electrical connection of diode D1 anode tap, electric capacity C1；The second end of the passive buzzer B1, the diode D1 are cloudy
Extremely, the second end of the electric capacity C1 electrically connects with second voltage feeder ear jointly；The emitter terminal and number of the triode Q1
Word publicly electrically connects.
Specifically, in the present embodiment, B1 is passive buzzer, it is necessary to be driven using the PWM ripples of certain dutycycle.BU_C
For buzzer control terminal, it is connected with singlechip chip U6 P2.2 (27 pin).By configuring in a program, P2.2 (27 can be made
Pin) the certain dutycycle PWM ripples of output, during for driving triode Q1, P2.2 (27 pin) to export high level, Q1 conductings, B1 is positive and negative
5V voltages between pole be present, when P2.2 (27 pin) exports low level, Q1 is turned off, without pressure difference between B1 both positive and negative polarities.As P2.2 (27
Pin) the certain dutycycle of output PWM ripples when, Q1 is with corresponding frequencies break-make, so as to control buzzer B1 to send sound.When remaining electricity
When stream or temperature are alarmed, buzzer sends sound.
Another embodiment is provided on the basis of above example, with reference to shown in figure 8, the indicator unit includes hair
Optical diode LED1, LED 2, LED 3；The data of P8.1 61 control of the singlechip chip U6
End is electrically connected by current-limiting resistance R5 with the anode tap of the LED 1；The P8.0 60 of the singlechip chip U6
Data control terminal is electrically connected by current-limiting resistance R6 with the anode tap of the LED 2；The singlechip chip U6's
The data control terminals of P8.2 62 are electrically connected by current-limiting resistance R8 with the anode tap of the LED 3；Described luminous two
Pole pipe LED1 cathode terminal, the cathode terminal of the LED 2, the LED 3 cathode terminal jointly with
Numeral publicly electrically connects.
Specifically, in the present embodiment, LED 1 is run indicator, when electric fire hazard detection device is normal
During work, singlechip chip U6 control P8.1 (61 pin) output high level, operation indicates that green light is bright.LED 2 is
Alarm lamp, when residual current or temperature are alarmed, singlechip chip U6 control P8.0 (60 pin) output high level,
Police instruction red colored lamp is bright.LED 3 is malfunction indicator lamp, when electric fire hazard detection device breaks down, monolithic
Movement piece U6 control P8.2 (62 pin) output high level, indicating fault amber light are bright.
In the utility model, sound and light alarm is carried out to alarm using buzzer unit and indicator unit, without with prison
Control equipment is used cooperatively, and when fire occurs, Field Force can more directly obtain warning message and withdraw in time.
Another embodiment is provided on the basis of above example, with reference to shown in figure 9, the address encoding unit includes
Toggle switch SW1；1~8 port of the toggle switch SW1 is electric with tertiary voltage feeder ear respectively by exclusion RIC1 and RIC2
Connection；1~8 port of the toggle switch SW1 also data of 17~P1.7 of P1.0 24 with the singlechip chip U6 respectively
Control terminal corresponds electrical connection；9~16 ports of the toggle switch SW1 publicly electrically connect with numeral respectively.
Specifically, in the present embodiment, toggle switch SW1 8 dial-up BOMA0-BOMA7 are connected to singlechip chip U6
P1.0 (17 pin)~P1.7 (24 pin), pull-up resistor row RIC1 and RIC2 make P1.0 (17 pin)~P1.7 (24 pin) be in pull-up
To the state of " 1 ", the state that toggle switch SW1 any bit can make this position be pulled down to " 0 " is turned on, thus codified 8 two
System address.Tertiary voltage power supply is 3.3V.
In the utility model, geocoding is carried out to electric fire hazard detection device using address encoding unit, it is different
Address code represents different search coverages, facilitates monitoring system to determine the specific orientation of fire.
Another embodiment is provided on the basis of above example, with reference to shown in figure 10, the push-button unit includes pressing
Key switch S1, key switch S2, key switch S3；The first end of the key switch S1, the first end of the key switch S2,
The first end of the key switch S3 is electrically connected with tertiary voltage feeder ear respectively by exclusion RIC3；The key switch S1's
First end also electrically connects with the data control terminals of P5.6 56 of the singlechip chip U6；The first end of the key switch S2 is also
Electrically connected with the data control terminals of P5.7 57 of the singlechip chip U6；The first end of the key switch S3 also with the list
The piece movement piece U6 data control terminals of P7.2 58 electrical connection；The second end of the key switch S1, the of the key switch S2
Two ends, the second end of the key switch S3 publicly electrically connect with numeral jointly.
Specifically, in the present embodiment, button S1, S2, S3 are pressed can be in the corresponding ports of same singlechip chip U6 connections
Read the state of button.The function of each key switch can be self-defined by programming progress in a program.For example, key switch
S1 is defined as ann reset function, and when residual current or temperature are alarmed, buzzer sends sound and police instruction
Red colored lamp is bright, after now staff notices alarm, can push button switch S1 so as to close buzzer, but alarm refers to
Show that red colored lamp is still remain on until alarm elimination, can so avoid because the sound of buzzer makes one to produce sense of discomfort.
Key switch S2 is defined as self-check of device function, when pushing button switch S2, equivalent to being manually set residual current or temperature
Degree is alarmed, and now buzzer should send sound and police instruction red colored lamp should be lighted.Key switch S3 is defined as
Emergency trip function, when staff have appreciated that occur unusual condition and device also has not enough time to detect the unusual condition
When, for example, fire just occur and temperature also be not up to alarm condition, now push button switch S3, buzzer send sound and
Police instruction red colored lamp is bright, while trip unit performs safety interaction function.
Another embodiment is provided on the basis of above example, with reference to shown in figure 11, the communication unit includes logical
Interrogate chip U10；The RO 1 of the communication chip U10 sends the data of UCA0SOMI 40 of data terminal and the singlechip chip U6
Communication terminal electrically connects；The RE 2 of the communication chip U10 sends control terminal, DE 3 receive control terminal respectively with the monolithic movement
The piece U6 data control terminals of UCA0STE 38 electrical connection；The DI 4 of the communication chip U10 receives data terminal and the single-chip microcomputer
The chip U6 data communication ends of UCA0SIMO 39 electrical connection；The data communication ends of A 6 of the communication chip U10 pass through fuse
Cathode terminals of the F2 respectively with discharge tube first anode end, Transient Suppression Diode electrically connects；The B 7 of the communication chip U10 is counted
According to communication terminal by fuse F1 respectively the second plate end with the discharge tube, the Transient Suppression Diode anode tap electricity
Connection；The power end of the communication chip U10 electrically connects with communication power voltage supply end；The earth terminal of the communication chip U10, institute
The first cathode terminal of discharge tube, the second cathode terminal of the discharge tube are stated jointly with communicatively electrically connecting.
Specifically, communication chip U10 model SN65176, be a kind of differential bus transceiver in the present embodiment,
For carrying out bidirectional data transfers between singlechip chip U6, and bi-directional data biography is carried out between external monitoring systems
It is defeated.U10 2,3 foot mouths connection U6 UCA0STE (38 pin), the transmission receptive pattern that this port passes through software communication control；
U10 1 pin sending port connection U6 UCA0SOMI (40 pin) receiving port, U10 4 pin receive port connection U6's
UCA0SIMO (39 pin) sending port, for the bidirectional data transfers between singlechip chip U6 and communication chip U10.U10's
A, B foots mouth connects RS485 connections respectively, for the bidirectional data transfers among communication chip U10 and external monitoring systems.
Communication power voltage supply is 485_5V, is communicatively 485_GND.
In the utility model, data are uploaded to by monitoring system using communication unit, realize remote centralized management and prison
Control, and when occurring abnormal, emergency arrangement is made in time.
The utility model also provides one embodiment, with reference to shown in figure 1-11, residual current detection unit detection outer lines
Residual current signal on road；The temperature signal of temperature detecting unit detection external temperature sensor collection；Governor circuit passes through
Single-chip microcomputer U6 A4 (1 pin) port receives residual current signal and A0 (77 pin)~A3 (80 pin) port for passing through single-chip microcomputer U6
Temperature signal is received, is then AD converted, and transformation result is sent to communication chip by UCA0SIMO (39 pin) port
U10 DI (4 pin) port, then external monitoring systems are uploaded to by communication chip U10 A (6 pin), B (7 pin) port.Master control
Unit sets residual current and temperature alarming value in a program, when residual current or temperature alarming occurs, governor circuit
Security function is performed by P4.6 (52 pin) port controlling trip unit, held by P2.2 (27 pin) port controlling buzzer unit
Row acoustic alarm function, by P8.0 (60 pin) port controlling indicator unit perform light alarm function, now push button switch
S1, the acoustic alarm of buzzer unit can be eliminated by single-chip microcomputer U6 P5.6 (56 pin) port, but retain the light of indicator unit
Alarm is until alarm eliminates.
Need what is illustrated, in this application used component model, while performance parameter is not influenceed, Ke Yijin
The adjustment of row practicality.
It should be noted that above-described embodiment can independent assortment as needed.Described above is only of the present utility model
Preferred embodiment, it is noted that for those skilled in the art, do not departing from the utility model principle
On the premise of, some improvements and modifications can also be made, these improvements and modifications also should be regarded as the scope of protection of the utility model.
Claims (10)
- A kind of 1. electric fire hazard detection device, it is characterised in that including：Governor circuit, and lead to respectively with the governor circuit Interrogate the signal deteching circuit of connection, alarm control circuit, auxiliary control circuit；Signal to be detected is detected by the signal deteching circuit, the governor circuit obtains from the signal deteching circuit Carry out data processing after the signal detected, and the data message after processing is sent to the alarm control circuit and described Auxiliary control circuit, the alarm control circuit and the auxiliary control circuit perform according to the data message after the processing Corresponding operating.
- 2. a kind of electric fire hazard detection device according to claim 1, it is characterised in that the governor circuit includes：It is single Piece movement piece U6；The analog input ends of A4 1 of the singlechip chip U6, the analog input ends of A0 77, the analog input ends of A1 78, A2 79 analog input ends, the analog input ends of A3 80 electrically connect with the signal deteching circuit respectively；The data control terminals of P4.6 52 of the singlechip chip U6, the data control terminals of P2.2 27, the data control terminals of P8.0 60, The data control terminals of P8.1 61, the data control terminals of P8.2 62 electrically connect with the alarm control circuit respectively；The data control terminals of 17~P1.7 of P1.0 24 of the singlechip chip U6, the data control terminals of P5.6 56, P5.7 57 are counted According to control terminal, the data control terminals of P7.2 58, the data control terminals of UCA0STE 38, the data communication ends of UCA0SIMO 39, The data communication ends of UCA0SOMI 40 electrically connect with the auxiliary control circuit respectively.
- A kind of 3. electric fire hazard detection device according to claim 2, it is characterised in that the signal deteching circuit bag Include：Residual current detection unit；The residual current detection unit includes amplifier chip U11；Electric capacity C45 first end, diode D5 anode tap, diode D6 cathode terminal, resistance R50 first end, resistance R48 First end electrically connected jointly with the first end of creepage mutual inductor；Electric capacity C44 first end, the diode D5 cathode terminal, The anode tap of the diode D6, the second end of the resistance R50, resistance R49 first end and the creepage mutual inductor the Two ends electrically connect jointly；The first of the amplifier chip U11 inputs positive terminal the second end with the resistance R48, electricity respectively Hinder R4 first end electrical connection；The first of the amplifier chip U11 inputs second of negative pole end respectively with the resistance R49 End, resistance R5 first end electrical connection；The second end of the resistance R4 is negative with the second input of the amplifier chip U11 respectively Extremely, the second output end electrically connects；The first output end of the amplifier chip U11 respectively the second end with the resistance R5, Resistance R19 first end electrical connection；The second end of the resistance R19, electric capacity C17 first end jointly with the singlechip chip The U6 analog input ends of A4 1 electrical connection；The second input positive terminal of the amplifier chip U11 respectively with resistance R61 the One end, resistance R62 first end electrical connection；The second end of the resistance R62 electrically connects with reference voltage feeder ear；The amplification Device chip U11 power positive end electrically connects with first voltage feeder ear；The power cathode end of the amplifier chip U11, institute State resistance R61 the second end, the second end of the electric capacity C17, the second end, the second end of the electric capacity C45 of the electric capacity C44 Publicly electrically connected with simulation jointly.
- 4. a kind of electric fire hazard detection device according to claim 2, it is characterised in that the signal deteching circuit also wraps Include：Temperature detecting unit；The temperature detecting unit includes at least temperature sensing circuit all the way；The temperature sensing circuit includes：The analog input ends of A0 77 of the singlechip chip U6, resistance R14 first end Electrically connected jointly with the first end of temperature sensor；The second end of the resistance R14, resistance R7 first end are jointly electric with benchmark Press feeder ear electrical connection；The second end of the resistance R7 electrically connects with resistance R8 first end；The second end of the resistance R8, institute The second end for stating temperature sensor publicly electrically connects with simulation jointly.
- A kind of 5. electric fire hazard detection device according to claim 2, it is characterised in that the alarm control circuit bag Include：Trip unit；The trip unit includes relay K1, triode Q2；The P4.652 data control terminal electricity that the base terminal of the triode Q2 passes through the current-limiting resistance R2 and singlechip chip U6 Connection；The collector terminal of the triode Q2 respectively with the negative pole end of the coil of the relay K1 and diode D3 anode End electrical connection；The positive terminal of the coil of the relay K1 and the diode D3 cathode terminal jointly with second voltage feeder ear Electrical connection；The emitter terminal of the triode Q2 publicly electrically connects with numeral.
- 6. a kind of electric fire hazard detection device according to claim 2, it is characterised in that the alarm control circuit also wraps Include：Buzzer unit；The buzzer unit includes passive buzzer B1, triode Q1；The P2.227 data control terminal electricity that the base terminal of the triode Q1 passes through the current-limiting resistance R7 and singlechip chip U6 Connection；The collector terminal of the triode Q1 first end with the passive buzzer B1, diode D1 anode tap, electricity respectively Hold C1 first end electrical connection；The second end of the passive buzzer B1, the diode D1 cathode terminals, the of the electric capacity C1 Two ends electrically connect with second voltage feeder ear jointly；The emitter terminal of the triode Q1 publicly electrically connects with numeral.
- 7. a kind of electric fire hazard detection device according to claim 2, it is characterised in that the alarm control circuit also wraps Include：Indicator unit；The indicator unit includes LED 1, LED 2, LED 3；The data control terminals of P8.1 61 of the singlechip chip U6 pass through current-limiting resistance R5 and the sun of the LED 1 Extreme electrical connection；The data control terminals of P8.0 60 of the singlechip chip U6 pass through current-limiting resistance R6 and the light emitting diode LED2 anode tap electrical connection；The data control terminals of P8.2 62 of the singlechip chip U6 pass through current-limiting resistance R8 and the hair Optical diode LED3 anode tap electrical connection；Cathode terminal, the moon of the LED 2 of the LED 1 Extremely, the cathode terminal of the LED 3 publicly electrically connects with numeral jointly.
- A kind of 8. electric fire hazard detection device according to claim 2, it is characterised in that the auxiliary control circuit bag Include：Address encoding unit；The address encoding unit includes toggle switch SW1；1~8 port of the toggle switch SW1 is electrically connected with tertiary voltage feeder ear respectively by exclusion RIC1 and RIC2；Institute State toggle switch SW1 1~8 port also data control terminals one of 17~P1.7 of P1.0 24 with the singlechip chip U6 respectively One corresponding electrical connection；9~16 ports of the toggle switch SW1 publicly electrically connect with numeral respectively.
- 9. a kind of electric fire hazard detection device according to claim 2, it is characterised in that the auxiliary control circuit also wraps Include：Push-button unit；The push-button unit includes key switch S1, key switch S2, key switch S3；The first end of the key switch S1, the first end of the key switch S2, the first end of the key switch S3 pass through Exclusion RIC3 electrically connects with tertiary voltage feeder ear respectively；The first end of the key switch S1 also with the singlechip chip U6 The data control terminals of P5.6 56 electrical connection；P5.7 57 of the first end of the key switch S2 also with the singlechip chip U6 Data control terminal electrically connects；The first end of the key switch S3 also controls with the data of P7.2 58 of the singlechip chip U6 End electrical connection；The second end of the key switch S1, the second end of the key switch S2, the second end of the key switch S3 Publicly electrically connected with numeral jointly.
- 10. a kind of electric fire hazard detection device according to claim 2, it is characterised in that the auxiliary control also includes： Communication unit；The communication unit includes communication chip U10；The RO 1 of the communication chip U10 sends the data communication ends of UCA0SOMI 40 of data terminal and the singlechip chip U6 Electrical connection；The RE 2 of the communication chip U10 sends control terminal, DE 3 receives control terminal respectively with the singlechip chip U6's The data control terminals of UCA0STE 38 electrically connect；The DI 4 of the communication chip U10 receives data terminal and the singlechip chip U6 The data communication ends of UCA0SIMO 39 electrical connection；Distinguished by fuse F2 at the data communication ends of A 6 of the communication chip U10 Electrically connected with the cathode terminal of discharge tube first anode end, Transient Suppression Diode；The data communications of B 7 of the communication chip U10 By fuse F1, the second plate end with the discharge tube, the anode tap of the Transient Suppression Diode electrically connect respectively at end； The power end of the communication chip U10 electrically connects with communication power voltage supply end；The earth terminal of the communication chip U10, described put First cathode terminal of fulgurite, the second cathode terminal of the discharge tube are jointly with communicatively electrically connecting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721171676.2U CN207148599U (en) | 2017-09-13 | 2017-09-13 | A kind of electric fire hazard detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721171676.2U CN207148599U (en) | 2017-09-13 | 2017-09-13 | A kind of electric fire hazard detection device |
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| Publication Number | Publication Date |
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| CN207148599U true CN207148599U (en) | 2018-03-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109998896A (en) * | 2019-04-28 | 2019-07-12 | 郑州飞龙医疗设备有限公司 | The control circuit of spinal treatments rifle |
-
2017
- 2017-09-13 CN CN201721171676.2U patent/CN207148599U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109998896A (en) * | 2019-04-28 | 2019-07-12 | 郑州飞龙医疗设备有限公司 | The control circuit of spinal treatments rifle |
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