CN105788200B - A kind of sensitivity technique equipment of smoke alarm - Google Patents
A kind of sensitivity technique equipment of smoke alarm Download PDFInfo
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- CN105788200B CN105788200B CN201610330170.5A CN201610330170A CN105788200B CN 105788200 B CN105788200 B CN 105788200B CN 201610330170 A CN201610330170 A CN 201610330170A CN 105788200 B CN105788200 B CN 105788200B
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- smog
- operational amplifier
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- housing
- resistance
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
- G08B29/12—Checking intermittently signalling or alarm systems
- G08B29/14—Checking intermittently signalling or alarm systems checking the detection circuits
- G08B29/145—Checking intermittently signalling or alarm systems checking the detection circuits of fire detection circuits
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- General Physics & Mathematics (AREA)
- Fire-Detection Mechanisms (AREA)
Abstract
The invention discloses a kind of sensitivity technique equipment of smoke alarm, housing, smoke generating device, Concentration Testing circuit including lower ending opening, control circuit and blowing device, Concentration Testing circuit and control circuit connection, control to be provided with concentration reference value scope in circuit and blowing device connection, control circuit；Housing is arranged on streamline, and streamline closes the lower ending opening of housing, and the smog chamber of closing is formed in housing；The front lower portion of housing is provided with entrance, the rear end lower of housing is provided with outlet, porch is provided with the first flexible door, exit is provided with the second flexible door, and smoke generating device is arranged in the rear portion of smog chamber, housing and is provided with dividing plate, there is a segment distance between the front end of dividing plate and the front end of housing, there is a segment distance between dividing plate rear end and smoke generating device, upper flue is formed between dividing plate and case top, lower flue is formed between dividing plate and streamline；Advantage is that accuracy of detection is high, and workable, detection efficiency is higher.
Description
Technical field
The present invention relates to a kind of sensitivity technique equipment, set more particularly, to a kind of sensitivity technique of smoke alarm
It is standby.
Background technology
Sensitivity is an important technology index of smoke alarm, and the quality of the sensitivity of smoke alarm is directly determined
The quality of smoke alarm quality.The manufacturer of smoke alarm is when producing smoke alarm, it is necessary to each cigarette
Fog siren all enters the detection of line sensitivity.But, because the detection environment of the sensitivity of smoke alarm is constant density
Smoky environment, is easily able to the constant of smokescope in the environment of closing, but is difficult to make smokescope in open environment
Controlled, smoky environment is difficult to.The sensitivity technique equipment closed box of existing smoke alarm a kind of realizes alarm
The smoky environment of device sensitivity technique, sensitivity technique equipment mosquito-repellent incense cigarette into closed box is read by easy device and sealed
General concentration in closed box body, in detection, product is put into closed box, takes out product after the completion of test again, but should
Sensitivity technique equipment smoky environment error is larger, and sensitivity technique precision is relatively low, and manual type picks and places product, operable
Property is poor, and detection efficiency is relatively low.
The content of the invention
It is high that the technical problems to be solved by the invention are to provide a kind of accuracy of detection, workable, and detection efficiency compared with
The sensitivity technique equipment of high smoke alarm.
The present invention solve the technical scheme that is used of above-mentioned technical problem for：A kind of sensitivity technique of smoke alarm is set
It is standby, include housing, smoke generating device, Concentration Testing circuit, control circuit and the blowing device of lower ending opening, described concentration
Detect circuit and described control circuit connection, described control circuit and described blowing device connection, described control electricity
Concentration reference value scope is provided with road；Described housing is arranged on streamline, and described streamline is by described housing
Lower ending opening is closed, and the smog chamber of closing is formed in now described housing；The front lower portion of described housing is provided with entrance,
The rear end lower of described housing is provided with outlet, and described porch is provided with the first flexible door, and described exit is set
There is the second flexible door, described smoke generating device is arranged in the rear portion of described smog chamber, described housing along level side
To being provided with dividing plate, there is a segment distance between the front end of the front end of described dividing plate and described housing, described dividing plate
There is a segment distance between rear end and described smoke generating device, formed between described dividing plate and the top of described housing
Upper flue, forms lower flue between described dividing plate and described streamline, described blowing device is used for described smog
The smog that generating means is produced blows to the front portion of described smog chamber along described upper flue from the rear portion of described smog chamber, then
The rear portion of described smog chamber is blowed to along described lower flue from the front portion of described smog chamber；In the spirit of detection smoke alarm
During sensitivity, described smoke generating device produces smog, and described blowing device blows smog in order to be made in described smog chamber
Smog it is balanced, smokescope in the described described smog chamber of Concentration Testing circuit detection in real time simultaneously generates concentration and examined in real time
Measured value is sent to described control circuit, and whether the described real-time detected value of control circuit judges concentration falls into concentration reference value model
In enclosing, if the real-time detected value of concentration is fallen into the range of concentration reference value, the described smog of described control circuit control occurs
Device is closed, if the real-time detected value of concentration is not fallen within the range of concentration reference value, the described cigarette of described control circuit control
Mist generation device is opened, and the porch that smoke alarm to be measured is delivered to described housing by streamline extrudes described first
Flexible door enters in described smog chamber, then via described housing exit extrude the second described flexible door leave it is described
Smog chamber, realize the automatic detection of smoke alarm sensitivity.
Be provided with disturbing flow device in described upper flue, described disturbing flow device include interval be inclined at it is described every
Multiple first spoilers and interval on plate upper surface are inclined at multiple second spoilers in described case top；Edge
Clockwise, the angle between the first described spoiler and described dividing plate is acute angle, the second described spoiler and institute
Angle between the top for the housing stated is acute angle.
Described Concentration Testing circuit includes infrared transmission module, infrared receiving module, amplifier and AD converter；It is described
Infrared transmission module be used to drive described infrared receiving module, the output end of described infrared receiving module and described put
The input connection of big device, the input connection of the output end of described amplifier and described AD converter, described AD turns
The output end of parallel operation and described control circuit connection.
Described amplifier includes electronic switch, the first operational amplifier, the second operational amplifier, the 3rd operation amplifier
Device, first resistor, second resistance, 3rd resistor, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance,
One electric capacity, the second electric capacity, the 3rd electric capacity, the 4th electric capacity and the 5th electric capacity；The model ADG409BR of described electronic switch, institute
The model of the first operational amplifier, the second described operational amplifier and the 3rd described operational amplifier stated is
AD708AH；One end of described first resistor, the 2nd of one end of the 4th described electric capacity and the first described operational amplifier the
Pin is connected and its connection end is the input of described amplifier, and the 3rd pin access first of the first described operational amplifier is joined
Examine voltage, the 1st pin of described the first operational amplifier, the other end of described first resistor, the 4th described electric capacity it is another
8th pin of one end and the connection of one end of described second resistance, the other end of described second resistance and described electronic switch
Connection, one end of the 4th pin of described electronic switch, the 5th pin of the first described operational amplifier and the first described electric capacity
Connection, the 3rd pin of the 5th pin of described electronic switch, one end of the second described electric capacity and the second described operational amplifier
Connection, the other end of described the first electric capacity, the other end of the second described electric capacity, the 4th of the first described operational amplifier the
4th pin of pin, the 4th pin of the second described operational amplifier and the 3rd described operational amplifier is grounded, and described first
One end connection of 6th pin of operational amplifier, the 7th pin of the first described operational amplifier and described 3rd resistor, it is described
3rd resistor the other end and described the second operational amplifier the connection of the 5th pin, the 2nd of described the second operational amplifier the
One end connection of pin, the 1st pin of the second described operational amplifier and the 5th described resistance, described the 5th resistance it is another
End, the 6th pin of described second operational amplifier, one end of one end of the 4th described resistance and the 3rd described electric capacity connect
Connect, the other end of described the 4th resistance, the other end of the 3rd described electric capacity, one end of the 6th described resistance and described
5th pin of the 7th pin connection of the second operational amplifier, the other end of described the 6th resistance and the 3rd described operational amplifier
Connection, the 6th pin of described the 3rd operational amplifier, one end of the 7th described resistance, one end of the 8th described resistance and
One end connection of the 5th described electric capacity, another beginning of the 8th described resistance accesses the second reference voltage, the described the 5th
The connection of the 7th pin and its connection of the other end of electric capacity, the other end of the 7th described resistance and the 3rd described operational amplifier
Hold as the output end of described amplifier, the 8th pin of described the first operational amplifier, the of the second described operational amplifier
8th pin of 8 pin and the 3rd described operational amplifier accesses supply voltage.Model ADG409BR electronic cutting in the structure
Realize that double switch is transported with first respectively inside the switching of internal double switch, electronic switch under the control of outside pulse signal in pass
Amplifier and the connection of the second operational amplifier are calculated, the pulse signal that thus amplifier is received passes through the first operational amplifier and second
Operational amplifier sequentially amplify after again by the 3rd operational amplifier by combined amplifier, it is ensured that the accuracy of signal amplification.
Described supply voltage is 5V, and the first described reference voltage is 0.6V, and the second described reference voltage is 2V.
Described smoke generating device includes air pump and atoleine bottle, and described air pump is used for described atoleine
Atoleine gasification in bottle is smog.
Described blowing device includes the first fan and the second fan, and the first described fan is arranged on described dividing plate
Above rear end, the first described fan is used for the smog that produces described smoke generating device along described upper flue from described
The rear portion of smog chamber blow to the front portion of described smog chamber, the second described fan is arranged under described plate front end
Side, the second described fan is used to blowing to smog into described smog chamber along described lower flue from the front portion of described smog chamber
Rear portion.
Draft fan is provided with the top of described housing, described draft fan is used for before detection by described smog
Outside the described smog room of indoor remaining smog discharge.
The first described flexible door and the second described flexible door are prepared from using bristle.
Compared with prior art, the advantage of the invention is that by setting the housing of lower ending opening, it is smoke generating device, dense
Degree detection circuit, control circuit and blowing device, Concentration Testing circuit and control circuit connection, control circuit and blowing device connect
Connect, concentration reference value scope is provided with control circuit；Housing is arranged on streamline, and streamline seals the lower ending opening of housing
Close, the smog chamber of closing is now formed in housing；The front lower portion of housing is provided with entrance, and the rear end lower of housing is provided with out
Mouthful, porch is provided with the first flexible door, and exit is provided with the second flexible door, and smoke generating device is arranged on behind smog chamber
It is horizontally disposed in portion, housing to have dividing plate, have between the front end of dividing plate and the front end of housing after a segment distance, dividing plate
There is a segment distance between end and smoke generating device, upper flue, dividing plate and streamline are formed between dividing plate and the top of housing
Between form lower flue, the smog that blowing device is used to produce smoke generating device is blowed to along upper flue from the rear portion of smog chamber
The front portion of smog chamber, then blow to along lower flue from the front portion of smog chamber the rear portion of smog chamber；In the sensitive of detection smoke alarm
When spending, smoke generating device produces smog, and blowing device blows smog in order makes the smog in smog chamber balanced, Concentration Testing electricity
Road detects the smokescope in smog chamber and generates the real-time detected value of concentration in real time is sent to control circuit, and control circuit judges are dense
Spend whether real-time detected value is fallen into the range of concentration reference value, if the real-time detected value of concentration is fallen into the range of concentration reference value,
Circuit control smoke generating device is controlled to close, if the real-time detected value of concentration is not fallen within the range of concentration reference value, control electricity
Road control smoke generating device is opened, and thereby guarantees that the smokescope in smog chamber in the range of concentration reference value, makes smog report
The sensitivity technique environment of alert device is the smoky environment of constant density, and smoke alarm to be measured is delivered to housing by streamline
Porch extrudes the first flexible door and entered in smog chamber, then leaves smog chamber via exit the second flexible door of extruding of housing,
The automatic detection of smoke alarm sensitivity is achieved in, accuracy of detection is high, and the detection process of automation is workable,
Detection efficiency is higher；
When being provided with disturbing flow device in upper flue, disturbing flow device is inclined at multiple on dividing plate upper surface including interval
First spoiler and interval are obliquely installed multiple second spoilers on top of the housing；Along clockwise direction, the first spoiler
Angle between dividing plate is acute angle, when the angle between the second spoiler and the top of housing is acute angle, by smog and air
Ordered mixing, it is ensured that smog circulates according to fixed-direction, improves the velocity of liquid assets and mixing uniformity of smog indoor smog, enters one
Step improves the accuracy of smokescope in smog chamber, improves the sensitivity technique precision of smoke alarm；
When Concentration Testing circuit includes infrared transmission module, infrared receiving module, amplifier and AD converter, infrared receiver
The output end of module and the input connection of amplifier, the output end of amplifier and the input connection of AD converter, AD conversion
When the output end of device and control circuit connection, infrared transmission module driving infrared receiving module work, infrared receiving module work
Collection smokescope signal is sent to amplifier, amplifier the smokescope signal received is amplified after again by AD converter
Be converted to data signal (i.e. the real-time detected value of smokescope) and be sent to control circuit, control circuit is examined in real time according to smokescope
Measured value is turned on or off smoke generating device, is achieved in the real-time detection and adjustment in real time of smokescope, circuit structure letter
It is single；
When smoke generating device includes air pump and atoleine bottle, air pump is used for the atoleine gas in atoleine bottle
Simple in construction when turning to smog, atoleine atomizing effect is good；
When blowing device includes the first fan and the second fan, the first fan is arranged on above the rear end of dividing plate, the first wind
Fan the front portion for blowing to smog chamber along upper flue from the rear portion of smog chamber for the smog for producing smoke generating device, the second fan
The lower section of plate front end is arranged on, the second fan is used for the rear portion that smog is blowed to smog chamber along lower flue from the front portion of smog chamber
When, the orderly circulation of smog is realized by the first fan and the second fan, simple in construction, cost is relatively low.
Draft fan is provided with the top of housing, draft fan is used to before detection arrange the remaining smog in smog chamber
, before detection can be by draft fan by outside the remaining smog vapour discharge room in smog chamber, it is to avoid residual when going out outside smog chamber
Remaining smog causes bad interference to smoky environment, improves sensitivity technique precision；
When the first flexible door and the second flexible door are prepared from using bristle, simple in construction, cost is relatively low, ensure that
Ensure the smoothly current of smoke alarm on the basis of the enclosed environment of smog chamber.
Brief description of the drawings
Fig. 1 is the structural representation of the sensitivity technique equipment of the smoke alarm of the present invention；
Fig. 2 is the side view of the sensitivity technique equipment of the smoke alarm of the present invention；
Concentration Testing circuit, control electricity of the Fig. 3 for the sensitivity technique equipment of the smoke alarm of the invention of the present invention
Road and the connection figure of smoke generating device；
Fig. 4 is the circuit diagram of the amplifier of the sensitivity technique equipment of the smoke alarm of the present invention.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing embodiment.
Embodiment one：As illustrated, a kind of sensitivity technique equipment of smoke alarm, including lower ending opening housing 1,
Smoke generating device 2, Concentration Testing circuit 3, control circuit 4 and blowing device, Concentration Testing circuit 3 and control circuit 4 are connected,
Control to be provided with concentration reference value scope in circuit 4 and blowing device connection, control circuit 4；Housing 1 is arranged on streamline,
Streamline closes the lower ending opening of housing 1, and the smog chamber of closing is now formed in housing 1；The front lower portion of housing 1 is provided with
Entrance, the rear end lower of housing 1 is provided with outlet, and porch is provided with the first flexible door 5, and exit is provided with the second flexible door
(not shown), smoke generating device 2 be arranged on it is horizontally disposed in the rear portion of smog chamber, housing 1 have dividing plate 6, every
There is a segment distance between the front end of plate 6 and the front end of housing 1, there is one section between the rear end of dividing plate 6 and smoke generating device 2
Upper flue 7 is formed between the top of distance, dividing plate 6 and housing 1, lower flue 8, blowing device are formed between dividing plate 6 and streamline
Smog for smoke generating device 2 to be produced blows to the front portion of smog chamber along upper flue 7 from the rear portion of smog chamber, then along lower cigarette
Road 8 blows to the rear portion of smog chamber from the front portion of smog chamber；When detecting the sensitivity of smoke alarm, smoke generating device 2 is produced
Raw smog, blowing device blows smog in order makes the smog in smog chamber balanced, in the detection in real time of Concentration Testing circuit 3 smog chamber
Smokescope and generate the real-time detected value of concentration be sent to control circuit 4, control circuit 4 whether judge the real-time detected value of concentration
Fall into the range of concentration reference value, if the real-time detected value of concentration is fallen into the range of concentration reference value, the control control smog of circuit 4
Generating means 2 is closed, if the real-time detected value of concentration is not fallen within the range of concentration reference value, and control circuit 4 controls smog
Device 2 is opened, and the porch that smoke alarm to be measured is delivered to housing 1 by streamline extrudes the first flexible door 5 and enters smog
Interior, then smog chamber is left via exit the second flexible door of extruding of housing 1, realize the automation of smoke alarm sensitivity
Detection.
In the present embodiment, disturbing flow device is provided with upper flue 7, disturbing flow device is inclined on dividing plate 6 including interval
Multiple first spoilers 9 and interval on end face are inclined at multiple second spoilers 10 on the top of housing 1；Along clockwise
Direction, the angle between the first spoiler 9 and dividing plate 6 is acute angle, and the angle between the second spoiler 10 and the top of housing 1 is
Acute angle.
In the present embodiment, Concentration Testing circuit 3 includes infrared transmission module, infrared receiving module, amplifier and AD conversion
Device；Infrared transmission module is used to drive infrared receiving module, the output end of infrared receiving module and the input connection of amplifier,
The output end of amplifier and the input connection of AD converter, the output end and control circuit 4 of AD converter are connected.
In the present embodiment, blowing device includes the first fan 11 and the second fan 12, and the first fan 11 is arranged on dividing plate 6
Above rear end, the smog that the first fan 11 is used to produce smoke generating device 2 blows to cigarette along upper flue 7 from the rear portion of smog chamber
The front portion of fog chamber, the second fan 12 is arranged on the lower section of the front end of dividing plate 6, and the second fan 12 is used for smog along lower flue 8 from cigarette
The front portion of fog chamber blows to the rear portion of smog chamber.
In the present embodiment, the top of housing 1 is provided with draft fan 13, and draft fan 13 is used for before detection by smog chamber
Outside interior remaining smog vapour discharge room.
Embodiment two：As illustrated, a kind of sensitivity technique equipment of smoke alarm, including lower ending opening housing 1,
Smoke generating device 2, Concentration Testing circuit 3, control circuit 4 and blowing device, Concentration Testing circuit 3 and control circuit 4 are connected,
Control to be provided with concentration reference value scope in circuit 4 and blowing device connection, control circuit 4；Housing 1 is arranged on streamline,
Streamline closes the lower ending opening of housing 1, and the smog chamber of closing is now formed in housing 1；The front lower portion of housing 1 is provided with
Entrance, the rear end lower of housing 1 is provided with outlet, and porch is provided with the first flexible door 5, and exit is provided with the second flexible door
(not shown), smoke generating device 2 be arranged on it is horizontally disposed in the rear portion of smog chamber, housing 1 have dividing plate 6, every
There is a segment distance between the front end of plate 6 and the front end of housing 1, there is one section between the rear end of dividing plate 6 and smoke generating device 2
Upper flue 7 is formed between the top of distance, dividing plate 6 and housing 1, lower flue 8, blowing device are formed between dividing plate 6 and streamline
Smog for smoke generating device 2 to be produced blows to the front portion of smog chamber along upper flue 7 from the rear portion of smog chamber, then along lower cigarette
Road 8 blows to the rear portion of smog chamber from the front portion of smog chamber；When detecting the sensitivity of smoke alarm, smoke generating device 2 is produced
Raw smog, blowing device blows smog in order makes the smog in smog chamber balanced, in the detection in real time of Concentration Testing circuit 3 smog chamber
Smokescope and generate the real-time detected value of concentration be sent to control circuit 4, control circuit 4 whether judge the real-time detected value of concentration
Fall into the range of concentration reference value, if the real-time detected value of concentration is fallen into the range of concentration reference value, the control control smog of circuit 4
Generating means 2 is closed, if the real-time detected value of concentration is not fallen within the range of concentration reference value, and control circuit 4 controls smog
Device 2 is opened, and the porch that smoke alarm to be measured is delivered to housing 1 by streamline extrudes the first flexible door 5 and enters smog
Interior, then smog chamber is left via exit the second flexible door of extruding of housing 1, realize the automation of smoke alarm sensitivity
Detection.
In the present embodiment, disturbing flow device is provided with upper flue 7, disturbing flow device is inclined on dividing plate 6 including interval
Multiple first spoilers 9 and interval on end face are inclined at multiple second spoilers 10 on the top of housing 1；Along clockwise
Direction, the angle between the first spoiler 9 and dividing plate 6 is acute angle, and the angle between the second spoiler 10 and the top of housing 1 is
Acute angle.
In the present embodiment, Concentration Testing circuit 3 includes infrared transmission module, infrared receiving module, amplifier and AD conversion
Device；Infrared transmission module is used to drive infrared receiving module, the output end of infrared receiving module and the input connection of amplifier,
The output end of amplifier and the input connection of AD converter, the output end and control circuit 4 of AD converter are connected.
In the present embodiment, smoke generating device 2 includes air pump and atoleine bottle, and air pump is used in atoleine bottle
Atoleine gasification is smog.
In the present embodiment, blowing device includes the first fan 11 and the second fan 12, and the first fan 11 is arranged on dividing plate 6
Above rear end, the smog that the first fan 11 is used to produce smoke generating device 2 blows to cigarette along upper flue 7 from the rear portion of smog chamber
The front portion of fog chamber, the second fan 12 is arranged on the lower section of the front end of dividing plate 6, and the second fan 12 is used for smog along lower flue 8 from cigarette
The front portion of fog chamber blows to the rear portion of smog chamber.
In the present embodiment, the top of housing 1 is provided with draft fan 13, and draft fan 13 is used for before detection by smog chamber
Outside interior remaining smog vapour discharge room.
Embodiment three：As illustrated, a kind of sensitivity technique equipment of smoke alarm, including lower ending opening housing 1,
Smoke generating device 2, Concentration Testing circuit 3, control circuit 4 and blowing device, Concentration Testing circuit 3 and control circuit 4 are connected,
Control to be provided with concentration reference value scope in circuit 4 and blowing device connection, control circuit 4；Housing 1 is arranged on streamline,
Streamline closes the lower ending opening of housing 1, and the smog chamber of closing is now formed in housing 1；The front lower portion of housing 1 is provided with
Entrance, the rear end lower of housing 1 is provided with outlet, and porch is provided with the first flexible door 5, and exit is provided with the second flexible door
(not shown), smoke generating device 2 be arranged on it is horizontally disposed in the rear portion of smog chamber, housing 1 have dividing plate 6, every
There is a segment distance between the front end of plate 6 and the front end of housing 1, there is one section between the rear end of dividing plate 6 and smoke generating device 2
Upper flue 7 is formed between the top of distance, dividing plate 6 and housing 1, lower flue 8, blowing device are formed between dividing plate 6 and streamline
Smog for smoke generating device 2 to be produced blows to the front portion of smog chamber along upper flue 7 from the rear portion of smog chamber, then along lower cigarette
Road 8 blows to the rear portion of smog chamber from the front portion of smog chamber；When detecting the sensitivity of smoke alarm, smoke generating device 2 is produced
Raw smog, blowing device blows smog in order makes the smog in smog chamber balanced, in the detection in real time of Concentration Testing circuit 3 smog chamber
Smokescope and generate the real-time detected value of concentration be sent to control circuit 4, control circuit 4 whether judge the real-time detected value of concentration
Fall into the range of concentration reference value, if the real-time detected value of concentration is fallen into the range of concentration reference value, the control control smog of circuit 4
Generating means 2 is closed, if the real-time detected value of concentration is not fallen within the range of concentration reference value, and control circuit 4 controls smog
Device 2 is opened, and the porch that smoke alarm to be measured is delivered to housing 1 by streamline extrudes the first flexible door 5 and enters smog
Interior, then smog chamber is left via exit the second flexible door of extruding of housing 1, realize the automation of smoke alarm sensitivity
Detection.
In the present embodiment, disturbing flow device is provided with upper flue 7, disturbing flow device is inclined on dividing plate 6 including interval
Multiple first spoilers 9 and interval on end face are inclined at multiple second spoilers 10 on the top of housing 1；Along clockwise
Direction, the angle between the first spoiler 9 and dividing plate 6 is acute angle, and the angle between the second spoiler 10 and the top of housing 1 is
Acute angle.
In the present embodiment, Concentration Testing circuit 3 includes infrared transmission module, infrared receiving module, amplifier and AD conversion
Device；Infrared transmission module is used to drive infrared receiving module, the output end of infrared receiving module and the input connection of amplifier,
The output end of amplifier and the input connection of AD converter, the output end and control circuit 4 of AD converter are connected.
In the present embodiment, amplifier includes electronic switch S3, the first operational amplifier U1, the second operational amplifier U2, the
Three operational amplifier U3, first resistor R1, second resistance R2,3rd resistor R3, the 4th resistance R4, the 5th resistance R5, the 6th electricity
Hinder R6, the 7th resistance R7, the 8th resistance R8, the first electric capacity C1, the second electric capacity C2, the 3rd electric capacity C3, the 4th electric capacity C4 and the 5th
Electric capacity C5；Electronic switch S3 model ADG409BR, the first operational amplifier U1, the second operational amplifier U2 and the 3rd computing
Amplifier U3 model is AD708AH；First resistor R1 one end, the 4th electric capacity C4 one end and the first operational amplifier U1
The connection of the 2nd pin and its connection end be amplifier input, the first operational amplifier U1 the 3rd pin accesses the first reference voltage
Ref_V1, the first operational amplifier U1 the 1st pin, the first resistor R1 other end, the 4th electric capacity C4 other end and the second electricity
Hinder R2 one end connection, the second resistance R2 other end and electronic switch S3 the 8th pin connection, electronic switch S3 the 4th pin, the
One end connection of one operational amplifier U1 the 5th pin and the first electric capacity C1, electronic switch S3 the 5th pin, the one of the second electric capacity C2
End and the second operational amplifier U2 the 3rd pin are connected, the first electric capacity C1 other end, the second electric capacity C2 other end, the first fortune
The 4th pin, the second operational amplifier U2 the 4th pin and the 3rd operational amplifier U3 the 4th pin for calculating amplifier U1 are grounded, and first
One end connection of operational amplifier U1 the 6th pin, the first operational amplifier U1 the 7th pin and 3rd resistor R3,3rd resistor R3
The other end and the second operational amplifier U2 the 5th pin connection, the second operational amplifier U2 the 2nd pin, the second operational amplifier
U2 the 1st pin and the 5th resistance R5 one end connection, the 5th resistance R5 other end, the second operational amplifier U2 the 6th pin, the
Four resistance R4 one end and the connection of the 3rd electric capacity C3 one end, the 4th resistance R4 other end, the 3rd electric capacity C3 other end, the
Six resistance R6 one end and the second operational amplifier U2 the 7th pin connection, the 6th resistance the R6 other end and the 3rd operation amplifier
Device U3 the 5th pin connection, the 3rd operational amplifier U3 the 6th pin, the 7th resistance R7 one end, the 8th resistance R8 one end and the
Five electric capacity C5 one end connection, the 8th resistance R8 another beginning accesses the second reference voltage Ref_V2, and the 5th electric capacity C5's is another
7th pin of one end, the 7th resistance R7 other end and the 3rd operational amplifier U3 is connected and its connection end is the output of amplifier
End, the 8th pin of the first operational amplifier U1 the 8th pin, the second operational amplifier U2 the 8th pin and the 3rd operational amplifier U3 is equal
Access supply voltage VCC.
In the present embodiment, supply voltage VCC is 5V, and the first reference voltage Ref_V1 is 0.6V, the second reference voltage Ref_
V2 is 2V, and electronic switch S3 the 1st pin, the 2nd pin and the 16th pin connect a pulse signal generator respectively, and pulse signal occurs
Device is synchronous with the tranmitting frequency of infrared transmission module, and double switch inside electronic switch S3 is thus realized under pulse signal control
Switching, it is ensured that the first operational amplifier U1 and the second operational amplifier U2 orderly work.
In the present embodiment, smoke generating device 2 includes air pump and atoleine bottle, and air pump is used in atoleine bottle
Atoleine gasification is smog.
In the present embodiment, blowing device includes the first fan 11 and the second fan 12, and the first fan 11 is arranged on dividing plate 6
Above rear end, the smog that the first fan 11 is used to produce smoke generating device 2 blows to cigarette along upper flue 7 from the rear portion of smog chamber
The front portion of fog chamber, the second fan 12 is arranged on the lower section of the front end of dividing plate 6, and the second fan 12 is used for smog along lower flue 8 from cigarette
The front portion of fog chamber blows to the rear portion of smog chamber.
In the present embodiment, the top of housing 1 is provided with draft fan 13, and draft fan 13 is used for before detection by smog chamber
Outside interior remaining smog vapour discharge room.
In the present embodiment, the first flexible door 5 and the second flexible door are prepared from using bristle.
Claims (9)
1. the sensitivity technique equipment of a kind of smoke alarm, it is characterised in that housing, smog including lower ending opening are filled
Put, Concentration Testing circuit, control circuit and blowing device, described Concentration Testing circuit and described control circuit connection, institute
Concentration reference value scope is provided with the control circuit stated and described blowing device connection, described control circuit；Described
Housing is arranged on streamline, and described streamline closes the lower ending opening of described housing, shape in now described housing
Into the smog chamber of closing；The front lower portion of described housing is provided with entrance, and the rear end lower of described housing is provided with outlet,
Described porch is provided with the first flexible door, and described exit is provided with the second flexible door, described smoke generating device
Be arranged on it is horizontally disposed in the rear portion of described smog chamber, described housing have a dividing plate, the front end of described dividing plate and
There is a segment distance between the front end of described housing, have between the rear end of described dividing plate and described smoke generating device
Upper flue, described dividing plate and described streamline are formed between the top of one segment distance, described dividing plate and described housing
Between form lower flue, described blowing device is used for the smog that produces described smoke generating device along described upper flue
The front portion of described smog chamber is blowed to from the rear portion of described smog chamber, then along described lower flue before described smog chamber
Portion blows to the rear portion of described smog chamber；
When detecting the sensitivity of smoke alarm, described smoke generating device produces smog, and described blowing device is orderly
Blowing smog makes the smog in described smog chamber balanced, in the described described smog chamber of Concentration Testing circuit detection in real time
Smokescope simultaneously generates the real-time detected value of concentration and is sent to described control circuit, and described control circuit judges concentration is examined in real time
Whether measured value is fallen into the range of concentration reference value, if the real-time detected value of concentration is fallen into the range of concentration reference value, described control
The described smoke generating device of circuit control processed is closed, if the real-time detected value of concentration is not fallen within the range of concentration reference value, institute
The smoke generating device described in control circuit control stated is opened, and smoke alarm to be measured is delivered to described shell by streamline
The first flexible door that the porch extruding of body is described enters in described smog chamber, then is extruded via the exit of described housing
The second described flexible door leaves described smog chamber, realizes the automatic detection of smoke alarm sensitivity.
2. a kind of sensitivity technique equipment of smoke alarm according to claim 1, it is characterised in that described upper cigarette
It is provided with disturbing flow device in road, described disturbing flow device includes multiple that interval is inclined on described dividing plate upper surface
One spoiler and interval are inclined at multiple second spoilers in described case top；Along clockwise direction, it is described
Angle between first spoiler and described dividing plate is acute angle, between the top of described the second spoiler and described housing
Angle be acute angle.
3. a kind of sensitivity technique equipment of smoke alarm according to claim 1, it is characterised in that described concentration
Detect that circuit includes infrared transmission module, infrared receiving module, amplifier and AD converter；Described infrared transmission module is used for
The described infrared receiving module of driving, the input connection of the output end of described infrared receiving module and described amplifier,
The input connection of the output end of described amplifier and described AD converter, the output end of described AD converter and described
Control circuit connection.
4. a kind of sensitivity technique equipment of smoke alarm according to claim 3, it is characterised in that described amplification
Device includes electronic switch, the first operational amplifier, the second operational amplifier, the 3rd operational amplifier, first resistor, the second electricity
Resistance, 3rd resistor, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance, the first electric capacity, the second electric capacity,
Three electric capacity, the 4th electric capacity and the 5th electric capacity；The model ADG409BR of described electronic switch, the first described operation amplifier
The model of device, the second described operational amplifier and the 3rd described operational amplifier is AD708AH；
2nd pin of one end of described first resistor, one end of the 4th described electric capacity and the first described operational amplifier connects
Connect and its connection end be described amplifier input, the 3rd pin access first of described the first operational amplifier is with reference to electricity
Pressure, the 1st pin, the other end of described first resistor, the other end of the 4th described electric capacity of described the first operational amplifier
Connected with one end of described second resistance, the 8th pin connection of the other end of described second resistance and described electronic switch,
One end connection of 4th pin of described electronic switch, the 5th pin of the first described operational amplifier and the first described electric capacity,
The 3rd pin connection of 5th pin of described electronic switch, one end of the second described electric capacity and the second described operational amplifier,
The other end of the first described electric capacity, the other end of the second described electric capacity, the 4th pin of the first described operational amplifier, institute
4th pin of the 4th pin of the second operational amplifier stated and the 3rd described operational amplifier is grounded, and the first described computing is put
One end connection of 6th pin of big device, the 7th pin of the first described operational amplifier and described 3rd resistor, the described the 3rd
The 5th pin connection of the other end of resistance and the second described operational amplifier, the 2nd pin of described the second operational amplifier, institute
One end connection of 1st pin of the second operational amplifier stated and the 5th described resistance, the other end of described the 5th resistance, institute
One end connection of 6th pin of the second operational amplifier stated, one end of the 4th described resistance and the 3rd described electric capacity, it is described
The 4th resistance the other end, the other end of described 3rd electric capacity, one end of the 6th described resistance and the second described fortune
Calculate the 7th pin connection of amplifier, the 5th pin connection of the other end of described the 6th resistance and the 3rd described operational amplifier,
6th pin of the 3rd described operational amplifier, one end of the 7th described resistance, one end of the 8th described resistance and described
One end connection of 5th electric capacity, another beginning of described the 8th resistance accesses the second reference voltage, described the 5th electric capacity
7th pin of the other end, the other end of the 7th described resistance and the 3rd described operational amplifier is connected and its connection end is institute
The output end for the amplifier stated, the 8th pin of described the first operational amplifier, the 8th pin of the second described operational amplifier and
8th pin of the 3rd described operational amplifier accesses supply voltage.
5. a kind of sensitivity technique equipment of smoke alarm according to claim 4, it is characterised in that described power supply
Voltage is 5V, and the first described reference voltage is 0.6V, and the second described reference voltage is 2V.
6. a kind of sensitivity technique equipment of smoke alarm according to claim 1, it is characterised in that described smog
Generating means includes air pump and atoleine bottle, and described air pump is used to gasify the atoleine in described atoleine bottle
For smog.
7. a kind of sensitivity technique equipment of smoke alarm according to claim 1, it is characterised in that described blowing
Device includes the first fan and the second fan, and the first described fan is arranged on above the rear end of described dividing plate, and described the
One fan is used to blow the smog that described smoke generating device is produced along described upper flue from the rear portion of described smog chamber
To the front portion of described smog chamber, the second described fan is arranged on the lower section of described plate front end, the second described fan
Rear portion for smog to be blowed to described smog chamber along described lower flue from the front portion of described smog chamber.
8. a kind of sensitivity technique equipment of smoke alarm according to claim 1, it is characterised in that described housing
Top be provided with draft fan, described draft fan is used to before detection discharge the remaining smog in described smog chamber
Outside described smog room.
9. a kind of sensitivity technique equipment of smoke alarm according to claim 1, it is characterised in that described first
Flexible door and the second described flexible door are prepared from using bristle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610330170.5A CN105788200B (en) | 2016-05-18 | 2016-05-18 | A kind of sensitivity technique equipment of smoke alarm |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610330170.5A CN105788200B (en) | 2016-05-18 | 2016-05-18 | A kind of sensitivity technique equipment of smoke alarm |
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| Publication Number | Publication Date |
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| CN105788200A CN105788200A (en) | 2016-07-20 |
| CN105788200B true CN105788200B (en) | 2017-10-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610330170.5A Active CN105788200B (en) | 2016-05-18 | 2016-05-18 | A kind of sensitivity technique equipment of smoke alarm |
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| CN110579431A (en) * | 2019-09-17 | 2019-12-17 | 宁波科赛迪电子科技有限公司 | Self-adaptive dimmer and dimming measuring method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2010009225A (en) * | 2008-06-25 | 2010-01-14 | Panasonic Electric Works Co Ltd | Smoke sensor inspection device |
| CN102163364A (en) * | 2011-03-23 | 2011-08-24 | 长春理工大学 | Smoke detector sensitivity detecting device based on obscuration principle |
| CN102749274A (en) * | 2012-07-11 | 2012-10-24 | 山东众海公共安全器材有限公司 | On-line detecting device of smoke detector |
| CN203931080U (en) * | 2014-04-30 | 2014-11-05 | 宁波安泊电子有限公司 | A kind of checkout equipment of smoke detector |
| CN204087453U (en) * | 2014-08-01 | 2015-01-07 | 国家电网公司 | For the smoking device of smoke detector test |
| CN105136978B (en) * | 2015-07-14 | 2017-03-01 | 营口天成消防设备有限公司 | Demarcate smoke box |
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| CN105788200A (en) | 2016-07-20 |
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