CN105864950A - Automatic-control ventilating system based on signal conversion circuit - Google Patents
Automatic-control ventilating system based on signal conversion circuit Download PDFInfo
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- CN105864950A CN105864950A CN201610357666.1A CN201610357666A CN105864950A CN 105864950 A CN105864950 A CN 105864950A CN 201610357666 A CN201610357666 A CN 201610357666A CN 105864950 A CN105864950 A CN 105864950A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/007—Ventilation with forced flow
- F24F7/013—Ventilation with forced flow using wall or window fans, displacing air through the wall or window
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/50—Air quality properties
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
- G05B19/054—Input/output
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Automation & Control Theory (AREA)
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Abstract
The invention discloses an automatic-control ventilating system based on a signal conversion circuit. The automatic-control ventilating system based on the signal conversion circuit is characterized in that the automatic-control ventilating system is mainly composed of a programmable logic controller, a power source, the signal conversion circuit, a memorizer, a ventilating control circuit, an air quality sensor and a ventilating device; the power source, the signal conversion circuit, the memorizer and the ventilating control circuit are all connected with the programmable logic controller; the air quality sensor is connected with the signal conversion circuit; the ventilating device is connected with the ventilating control circuit; the ventilating control circuit comprises an integrated chip U, a trigger circuit and a control circuit; the input end of the trigger circuit is connected with the programmable logic controller, and the output end of the trigger circuit is connected with the integrated chip U; and the input end of the control circuit is connected with the integrated chip U, and the output end of the control circuit is connected with the ventilating device. The automatic-control ventilating system based on the signal conversion circuit is simple in structure and low in cost; and the programmable logic controller can judge whether the ventilating device needs to be started or not according to an indoor air quality signal collected by the air quality sensor, so that the ventilating device is made to stop working when the indoor air quality is good, the purpose of conducting ventilation automatically according to the condition of the peculiar smell generated in the environment is achieved accordingly, and the automatic-control ventilating system based on the signal conversion circuit is suitable for application and popularization.
Description
Technical field
The present invention relates to a kind of air exchange system, specifically refer to a kind of based on signaling conversion circuit automatically controlling and change
Gas system.
Background technology
At present, owing to urban population increases severely and the development need in city, City Building becomes increasingly huger
Greatly, these mega structure things will be divided into the most independent multiple small space, and these are individually independent
Small space the most all there is certain closure, thus it cannot be guaranteed that and keep smooth and easy between ambient atmosphere
Circulation, therefore in these spaces produce abnormal flavour be then not easy to automatically disperse.Generally use air conditioner at present
Or the air regenerating device such as exhaust fan takes a breath, thus abnormal flavour is spilt in air, and external world's fresh air is led
Enter.But, the occupation mode of most air regenerating device is the most all that people one enter indoor and are switched on, or
Person waits until that people have snuffed abnormal flavour by olfactory sensation and have been then turned on, and thinks elimination of off flavor or until people the most intuitively
Turn off when leaving.Gas with foreign flavor is often unfavorable for that people's is healthy, waits until that snuffing abnormal flavour is carried out again
Ventilation explanation human body has been drawn into gas with foreign flavor, and always on air regenerating device also will result in waste greatly,
On the one hand air regenerating device needs power consumption, and equipment also will be caused use mill by the most always on air regenerating device
Loss.
Summary of the invention
It is an object of the invention to overcome drawbacks described above, it is provided that one is not only simple in structure, and with low cost,
Based on signaling conversion circuit can also automatically control according to what environment produced that the situation of abnormal flavour carries out taking a breath automatically
Air exchange system.
The present invention is achieved through the following technical solutions:
A kind of automatic controlling ventilating system based on signaling conversion circuit, mainly by Programmable Logic Controller, all with
Power supply, signaling conversion circuit, memorizer and the ventilation control circuit that Programmable Logic Controller is connected, with signal
The air mass sensor that change-over circuit is connected, and the air interchanger group being connected with ventilation control circuit
Become；Described ventilation control circuit includes integrated chip U, and input is connected with Programmable Logic Controller, exports
Hold the triggering circuit being connected with integrated chip U, and input is connected with integrated chip U, exports
The control circuit that end is connected with air interchanger.
Further, described signaling conversion circuit by audion VT6, audion VT7, field effect transistor Q1,
Field effect transistor Q2, one end is connected with the grid of field effect transistor Q1, the other end is as signaling conversion circuit
Input the resistance R16 being connected with air mass sensor, positive pole after resistance R17 with field effect transistor
The grid of Q1 is connected, the electric capacity C8 of minus earth, is serially connected in source electrode and the audion of field effect transistor Q1
Resistance R18 between the emitter stage of VT6, is serially connected in the emitter stage of audion VT6 with audion VT7's
Resistance R23 between emitter stage, positive pole is connected with the source electrode of field effect transistor Q1, negative pole is through resistance R22
Electric capacity C9, the N pole that colelctor electrode with audion VT7 is connected afterwards after resistance R20 with field effect transistor
The diode D8 that the drain electrode of Q1 is connected, P pole base stage with audion VT7 after resistance R21 is connected,
Positive pole N pole with diode D8 after resistance R19 is connected, electric capacity C10, the P pole of minus earth with
The colelctor electrode of audion VT6 is connected, N pole grid with field effect transistor Q2 after resistance R24 is connected
Diode D10, positive pole is connected with the colelctor electrode of audion VT7, the leakage of negative pole and field effect transistor Q2
Electric capacity C11, the P pole that pole is connected is connected with the emitter stage of audion VT7, N pole after resistance R25 with
The diode D11 that the source electrode of field effect transistor Q2 is connected, and P pole is connected with the base stage of audion VT7
Connect, diode D9 that N pole is connected with the N pole of diode D11 after resistance R26 composition；Described
The base stage of audion VT6 is connected with the positive pole of electric capacity C8, the N pole of described diode D10 and electric capacity
The positive pole of C10 is connected；The N pole of described diode D9 as signaling conversion circuit outfan and with can
Programmable controller is connected.
Further, described triggering circuit is by audion VT1, and audion VT2, P pole is through resistance R1
The diode that colelctor electrode with audion VT1 is connected afterwards, N pole is connected with the base stage of audion VT1
D1, positive pole colelctor electrode with audion VT1 after resistance R2 is connected, the electric capacity C1 of minus earth,
Positive pole is connected with the emitter stage of audion VT1, negative pole positive pole with electric capacity C1 after resistance R3 is connected
The electric capacity C2 connect, positive pole base stage with audion VT1 after relay K is connected, negative pole and audion
Electric capacity C3, the P pole that the emitter stage of VT2 is connected is connected with the emitter stage of audion VT1, N pole with
The diode D2 that the emitter stage of audion VT2 is connected, positive pole after resistance R4 with the negative pole of electric capacity C2
Be connected, electric capacity C4, the N pole of minus earth is connected with the colelctor electrode of audion VT2, P pole and three
The diode D3 that is connected of base stage of level pipe VT2, one end positive pole with electric capacity C3 after resistance R5 is connected
Connect, resistance R7 that the other end is connected with the base stage of audion VT2, one end and resistance R5 and resistance R7
The resistance R6 that junction point is connected, the other end is connected with the SCLK pin of integrated chip U, and
The resistance R8 composition being serially connected between the base stage of audion VT2 and the RESET pin of integrated chip U；
The CS pin of described integrated chip U is connected with SCLK pin, its GND pin ground connection；Described electricity
The positive pole holding C4 is connected with the colelctor electrode of audion VT2, and the P pole of described diode D1 is as triggering
The input of circuit.
Further, described control circuit is by audion VT3, audion VT4, audion VT5, P
Pole VDD pin with integrated chip U after resistance R9 is connected, the transmitting of N pole and audion VT4
The diode D4 that pole is connected, one end is connected with the DIN pin of integrated chip U, the other end and three poles
The resistance R10 that the base stage of pipe VT4 is connected, positive pole is connected with the base stage of audion VT4, negative pole with
The electric capacity C5 that the emitter stage of triode VT3 is connected, positive pole after resistance R12 with the collection of audion VT4
Electrode is connected, the electric capacity C6 of minus earth, and one end is connected with the emitter stage of audion VT4, another
The resistance R11 that is connected with the colelctor electrode of audion VT5 of end, positive pole after resistance R13 with audion VT5
Colelctor electrode be connected, the electric capacity C7 of minus earth, with electric capacity C7 be just serially connected in the positive pole of electric capacity C6
Resistance R14, P pole between pole is connected with the colelctor electrode of audion VT4, N pole and audion VT5
Diode D6, the N pole that is connected of emitter stage be connected with the colelctor electrode of audion VT5, P pole and three
The diode D5 that the base stage of pole pipe VT5 is connected, and P pole is connected with the emitter stage of audion VT5,
The diode D7 composition that N pole base stage with audion VT5 after resistance R15 is connected；Described audion
The colelctor electrode of VT3 is connected with DRDY pin and the DOUT pin of control chip U respectively, its base stage
Being connected with the positive pole of electric capacity C6, the base stage of described audion VT4 is connected with the P pole of diode D4,
The positive pole of described electric capacity C7 is connected with the N pole of diode D7, and the base stage of described audion VT5 is through continuing
It is connected with air interchanger after the normally opened contact K-1 of electrical equipment K.
In order to the present invention is better achieved, described air interchanger is air-cooler or exhaust fan.
In order to ensure effect, described control chip U is the integrated chip of AD7705.
The present invention compared with prior art, has the following advantages and beneficial effect:
(1) present invention is not only simple in structure, and with low cost, and Programmable Logic Controller can be according to air matter
The IAQ (indoor air quality) signal of quantity sensor collection judges whether to need to open air interchanger, thus can be in indoor
Stopping air interchanger work when air quality is preferable, the situation that can realize producing abnormal flavour according to environment is entered automatically
The purpose of row ventilation, makes the present invention the most intelligent, and it is the most convenient to use.
(2) signaling conversion circuit of the present invention can form an easy signal adapter, can be by air matter
The air mass signal of quantity sensor collection is converted to the signal that Programmable Logic Controller is easy to identify, so that this
The automatic ventilation system structure of invention is simpler and cost is lower.
(3) the triggering circuit of the present invention can be used for triggering the integrated chip U of startup, when Programmable Logic Controller root
Then to triggering electricity when judging to need to start air interchanger according to the air mass signal of air mass sensor collection
Road sends startup control signal, and relay K obtains electric and turns on triggering circuit, can start integrated chip U,
Thus can be convenient for automatically controlling.
(4) control circuit of the present invention can be used for controlling air interchanger work, when relay K obtains electric, institute
Stating the normally opened contact K-1 conducting of relay K, described integrated chip U starts backward control circuit and sends control
Signal processed, control circuit then controls air interchanger and starts and take a breath.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the present invention.
Fig. 2 is the electrical block diagram of the ventilation control circuit of the present invention.
Fig. 3 is the electrical block diagram of the signaling conversion circuit of the present invention.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention do not limit
In this.
Embodiment
As shown in Figures 1 to 3, the automatic controlling ventilating system of the present invention, mainly by Programmable Logic Controller, all
Power supply, signaling conversion circuit, memorizer and the ventilation control circuit being connected with Programmable Logic Controller, with letter
Number air mass sensor that change-over circuit is connected, and the air interchanger being connected with ventilation control circuit
Composition.Described air mass sensor uses the air mass sensor of TGS2600 model, this sky
Makings quantity sensor is for gathering the air mass signal of indoor, and is sent extremely by the air mass signal gathered
Signaling conversion circuit carries out signal conversion, and the control quality signal after conversion is sent by A/D converter more extremely can
Programmable controller.Programmable Logic Controller presets the related data of air quality and related data is stored
Son in memory, Programmable Logic Controller by the air mass signal of air mass sensor collection with set in advance
Fixed related data contrasts.When comparing result be IAQ (indoor air quality) poor time Controlled by Programmable Controller
Send startup control signal to ventilation control circuit, then start air interchanger and take a breath；When contrast knot
Fruit for IAQ (indoor air quality) preferable time Controlled by Programmable Controller to ventilation control circuit send stopping control letter
Number, then stop air interchanger and take a breath.
Described air interchanger can be air-cooler, it is also possible to be exhaust fan, can select according to using needs.
Described ventilation control circuit includes integrated chip U, input is connected with Programmable Logic Controller, outfan with
The triggering circuit that integrated chip U is connected, and input is connected with integrated chip U, outfan with
The control circuit that air interchanger is connected.It is integrated that integrated chip U in the present embodiment uses AD7705
Chip.
As in figure 2 it is shown, concrete, described triggering circuit is by audion VT1, audion VT2, resistance
R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, resistance R7, resistance R8, electricity
Hold C1, electric capacity C2, electric capacity C3, electric capacity C4, diode D1, diode D2 and diode D3
Composition.
During connection, the P pole of described diode D1 colelctor electrode with audion VT1 after resistance R1 is connected
Connecing, its N pole is connected with the base stage of audion VT1.The positive pole of described electric capacity C1 after resistance R2 with
The colelctor electrode of audion VT1 is connected, the electric capacity C1 of its minus earth.The positive pole of described electric capacity C2 with
The emitter stage of audion VT1 is connected, and its negative pole positive pole with electric capacity C1 after resistance R3 is connected.
The positive pole of described electric capacity C3 base stage with audion VT1 after relay K is connected, its negative pole and three poles
The emitter stage of pipe VT2 is connected.The P pole of described diode D2 is connected with the emitter stage of audion VT1
Connecing, its N pole is connected with the emitter stage of audion VT2.The positive pole of described electric capacity C4 is after resistance R4
It is connected with the negative pole of electric capacity C2, its minus earth.The N pole of described diode D3 and audion VT2
Colelctor electrode be connected, its P pole is connected with the base stage of triode VT2.One end warp of described resistance R7
After resistance R5, the positive pole with electric capacity C3 is connected, and its other end is connected with the base stage of audion VT2.
One end of described resistance R6 is connected with the junction point of resistance R5 and resistance R7, its other end and integrated core
The SCLK pin of sheet U is connected.Described resistance R8 is serially connected in the base stage of audion VT2 and integrated core
Between the RESET pin of sheet U.Meanwhile, the CS pin of described integrated chip U and SCLK pin phase
Connect, its GND pin ground connection.The positive pole of described electric capacity C4 is connected with the colelctor electrode of audion VT2,
The P pole of described diode D1 is as the input triggering circuit.
Described control circuit is by audion VT3, audion VT4, audion VT5, resistance R9, resistance
R10, resistance R11, resistance R12, resistance R13, resistance R14, resistance R15, electric capacity C5, electric capacity
C6, electric capacity C7, diode D4, diode D5, diode D6 and diode D7 form.
During connection, the P pole of described diode D4 after resistance R9 with the VDD pin of integrated chip U
Being connected, its N pole is connected with the emitter stage of audion VT4.One end of described resistance R10 is with integrated
The DIN pin of chip U is connected, and its other end is connected with the base stage of audion VT4.Described electric capacity
The positive pole of C5 is connected with the base stage of audion VT4, and its negative pole is connected with the emitter stage of triode VT3.
The positive pole of described electric capacity C6 colelctor electrode with audion VT4 after resistance R12 is connected, its minus earth.
One end of described resistance R11 is connected with the emitter stage of audion VT4, its other end and audion VT5
Colelctor electrode be connected.The positive pole of described electric capacity C7 after resistance R13 with the colelctor electrode phase of audion VT5
Connect, its minus earth.Described resistance R14 be serially connected in the positive pole of electric capacity C6 and electric capacity C7 positive pole it
Between.The P pole of described diode D6 is connected with the colelctor electrode of audion VT4, its N pole and audion
The emitter stage of VT5 is connected.The N pole of described diode D5 is connected with the colelctor electrode of audion VT5,
Its P pole is connected with the base stage of audion VT5.The P pole of described diode D7 is with audion VT5's
Emitter stage is connected, and its N pole base stage with audion VT5 after resistance R15 is connected.
Meanwhile, the colelctor electrode of described audion VT3 respectively with DRDY pin and the DOUT of control chip U
Pin is connected, its base stage is connected with the positive pole of electric capacity C6, the base stage of described audion VT4 and two poles
The P pole of pipe D4 is connected, and the positive pole of described electric capacity C7 is connected with the N pole of diode D7, described
The base stage of audion VT5 is connected with air interchanger after the normally opened contact K-1 of relay K.
Described triggering circuit is used for triggering the integrated chip U of startup, when Programmable Logic Controller passes according to air quality
Then startup control is sent to triggering circuit when the air mass signal of sensor collection judges to need to start air interchanger
Signal processed, relay K obtains electric and turns on triggering circuit, can start integrated chip U.Described control circuit
For controlling air interchanger work, when relay K obtains electric, the normally opened contact K-1 of described relay K leads
Logical, described integrated chip U starts backward control circuit and sends control signal, and control circuit then controls ventilation dress
Put startup and take a breath.When the air mass signal that Programmable Logic Controller gathers according to air mass sensor
Then send the control signal stopping air interchanger work when judging to stop ventilation to triggering circuit, relay K is lost
Electricity break trigger circuit, can stop integrated chip U work.Meanwhile, described relay K is normally opened
Contact K-1 disconnects, and can stop air interchanger work.
As it is shown on figure 3, described signaling conversion circuit is by audion VT6, audion VT7, field effect transistor
Q1, field effect transistor Q2, resistance R16, resistance R17, resistance R18, resistance R19, resistance R20,
Resistance R21, resistance R22, resistance R23, resistance R24, resistance R25, resistance R26, electric capacity C8,
Electric capacity C9, electric capacity C10, electric capacity C11, diode D8, diode D9, diode D10 and two
Pole pipe D11 forms.
During connection, described one end of resistance R16 is connected with the grid of field effect transistor Q1, and its other end is made
For the input of signaling conversion circuit and it is connected with air mass sensor.The positive pole warp of described electric capacity C8
After resistance R17, the grid with field effect transistor Q1 is connected, its minus earth.Described resistance R18 is serially connected in
Between source electrode and the emitter stage of audion VT6 of field effect transistor Q1, described resistance R23 is serially connected in audion
Between emitter stage and the emitter stage of audion VT7 of VT6.The positive pole of described electric capacity C9 and field effect transistor
The source electrode of Q1 is connected, and its negative pole colelctor electrode with audion VT7 after resistance R22 is connected.Described
The drain electrode with field effect transistor Q1 after resistance R20 of the N pole of diode D8 is connected, and its P pole is through resistance
After R21, the base stage with audion VT7 is connected.The positive pole of described electric capacity C10 after resistance R19 with two
The N pole of pole pipe D8 is connected, its minus earth.The P pole of described diode D10 and audion VT6
Colelctor electrode be connected, its N pole grid with field effect transistor Q2 after resistance R24 is connected.Described electricity
The positive pole holding C11 is connected with the colelctor electrode of audion VT7, the drain electrode phase of its negative pole and field effect transistor Q2
Connect.The P pole of described diode D11 is connected with the emitter stage of audion VT7, and its N pole is through resistance R25
It is connected with the source electrode of field effect transistor Q2 afterwards.The P pole of described diode D9 and the base stage of audion VT7
Being connected, N pole with diode D11 after resistance R26, its N pole is connected.
Meanwhile, the base stage of described audion VT6 is connected with the positive pole of electric capacity C8, described diode D10
N pole be connected with the positive pole of electric capacity C10.The N pole of described diode D9 is as signaling conversion circuit
Outfan and be connected with Programmable Logic Controller.Described signaling conversion circuit can form an easy signal
Transducer, can be converted to the air mass signal of air mass sensor collection Programmable Logic Controller and be easy to know
Other signal, so that the automatic ventilation system structure of the present invention is simpler and cost is lower.
As it has been described above, just can preferably realize the present invention.
Claims (6)
1. an automatic controlling ventilating system based on signaling conversion circuit, it is characterised in that: mainly by can
Programmable controller, the power supply being all connected with Programmable Logic Controller, signaling conversion circuit, memorizer and ventilation
Control circuit, the air mass sensor being connected with signaling conversion circuit, and with ventilation control circuit phase
The air interchanger composition connected；Described ventilation control circuit includes integrated chip U, input and programmable control
The triggering circuit that device processed is connected, outfan is connected with integrated chip U, and input and integrated chip
The control circuit that U is connected, outfan is connected with air interchanger.
A kind of automatic controlling ventilating system based on signaling conversion circuit the most according to claim 1,
It is characterized in that: described signaling conversion circuit by audion VT6, audion VT7, field effect transistor Q1,
Field effect transistor Q2, one end is connected with the grid of field effect transistor Q1, the other end is as signaling conversion circuit
Input the resistance R16 being connected with air mass sensor, positive pole after resistance R17 with field effect transistor
The grid of Q1 is connected, the electric capacity C8 of minus earth, is serially connected in source electrode and the audion of field effect transistor Q1
Resistance R18 between the emitter stage of VT6, is serially connected in the emitter stage of audion VT6 with audion VT7's
Resistance R23 between emitter stage, positive pole is connected with the source electrode of field effect transistor Q1, negative pole is through resistance R22
Electric capacity C9, the N pole that colelctor electrode with audion VT7 is connected afterwards after resistance R20 with field effect transistor
The diode D8 that the drain electrode of Q1 is connected, P pole base stage with audion VT7 after resistance R21 is connected,
Positive pole N pole with diode D8 after resistance R19 is connected, electric capacity C10, the P pole of minus earth with
The colelctor electrode of audion VT6 is connected, N pole grid with field effect transistor Q2 after resistance R24 is connected
Diode D10, positive pole is connected with the colelctor electrode of audion VT7, the leakage of negative pole and field effect transistor Q2
Electric capacity C11, the P pole that pole is connected is connected with the emitter stage of audion VT7, N pole after resistance R25 with
The diode D11 that the source electrode of field effect transistor Q2 is connected, and P pole is connected with the base stage of audion VT7
Connect, diode D9 that N pole is connected with the N pole of diode D11 after resistance R26 composition；Described
The base stage of audion VT6 is connected with the positive pole of electric capacity C8, the N pole of described diode D10 and electric capacity
The positive pole of C10 is connected；The N pole of described diode D9 as signaling conversion circuit outfan and with can
Programmable controller is connected.
A kind of automatic controlling ventilating system based on signaling conversion circuit the most according to claim 2,
It is characterized in that: described triggering circuit by audion VT1, audion VT2, P pole after resistance R1 with
The diode D1 that the colelctor electrode of audion VT1 is connected, N pole is connected with the base stage of audion VT1,
Positive pole colelctor electrode with audion VT1 after resistance R2 is connected, the electric capacity C1 of minus earth, positive pole
Be connected with the emitter stage of audion VT1, negative pole positive pole with electric capacity C1 after resistance R3 is connected
Electric capacity C2, positive pole base stage with audion VT1 after relay K is connected, negative pole and audion VT2
Electric capacity C3, the P pole that is connected of emitter stage be connected with the emitter stage of audion VT1, N pole and three poles
The diode D2 that the emitter stage of pipe VT2 is connected, positive pole negative pole with electric capacity C2 after resistance R4 is connected
Connect, electric capacity C4, the N pole of minus earth is connected with the colelctor electrode of audion VT2, P pole and triode
The diode D3 that the base stage of VT2 is connected, one end positive pole with electric capacity C3 after resistance R5 is connected,
The resistance R7 that the other end is connected with the base stage of audion VT2, one end and resistance R5 and the company of resistance R7
The resistance R6 that contact is connected, the other end is connected with the SCLK pin of integrated chip U, and concatenation
Resistance R8 composition between the base stage and the RESET pin of integrated chip U of audion VT2；Described
The CS pin of integrated chip U is connected with SCLK pin, its GND pin ground connection；Described electric capacity C4
Positive pole be connected with the colelctor electrode of audion VT2, the P pole of described diode D1 is as triggering circuit
Input.
A kind of automatic controlling ventilating system based on signaling conversion circuit the most according to claim 3,
It is characterized in that: described control circuit is by audion VT3, audion VT4, audion VT5, P pole warp
After resistance R9 the VDD pin with integrated chip U be connected, the emitter stage phase of N pole and audion VT4
The diode D4 connected, one end is connected with the DIN pin of integrated chip U, the other end and audion
The resistance R10 that the base stage of VT4 is connected, positive pole is connected with the base stage of audion VT4, negative pole and three
The electric capacity C5 that is connected of emitter stage of level pipe VT3, positive pole after resistance R12 with the current collection of audion VT4
Pole is connected, the electric capacity C6 of minus earth, and one end is connected with the emitter stage of audion VT4, the other end
The resistance R11 being connected with the colelctor electrode of audion VT5, positive pole after resistance R13 with audion VT5
Colelctor electrode be connected, the electric capacity C7 of minus earth, with electric capacity C7 be just serially connected in the positive pole of electric capacity C6
Resistance R14, P pole between pole is connected with the colelctor electrode of audion VT4, N pole and audion VT5
Diode D6, the N pole that is connected of emitter stage be connected with the colelctor electrode of audion VT5, P pole and three
The diode D5 that the base stage of pole pipe VT5 is connected, and P pole is connected with the emitter stage of audion VT5,
The diode D7 composition that N pole base stage with audion VT5 after resistance R15 is connected；Described audion
The colelctor electrode of VT3 is connected with DRDY pin and the DOUT pin of control chip U respectively, its base stage
Being connected with the positive pole of electric capacity C6, the base stage of described audion VT4 is connected with the P pole of diode D4,
The positive pole of described electric capacity C7 is connected with the N pole of diode D7, and the base stage of described audion VT5 is through continuing
It is connected with air interchanger after the normally opened contact K-1 of electrical equipment K.
5. change according to a kind of based on signaling conversion circuit the automatically controlling described in any one of Claims 1 to 4
Gas system, it is characterised in that: described air interchanger is air-cooler or exhaust fan.
A kind of automatic controlling ventilating system based on signaling conversion circuit the most according to claim 5,
It is characterized in that: described control chip U is the integrated chip of AD7705.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610357666.1A CN105864950A (en) | 2016-05-25 | 2016-05-25 | Automatic-control ventilating system based on signal conversion circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610357666.1A CN105864950A (en) | 2016-05-25 | 2016-05-25 | Automatic-control ventilating system based on signal conversion circuit |
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|---|---|
| CN105864950A true CN105864950A (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610357666.1A Pending CN105864950A (en) | 2016-05-25 | 2016-05-25 | Automatic-control ventilating system based on signal conversion circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109812944A (en) * | 2019-03-20 | 2019-05-28 | 杭州市地铁集团有限责任公司运营分公司 | A kind of ventilation and air conditioning system air-valve control circuit board |
-
2016
- 2016-05-25 CN CN201610357666.1A patent/CN105864950A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109812944A (en) * | 2019-03-20 | 2019-05-28 | 杭州市地铁集团有限责任公司运营分公司 | A kind of ventilation and air conditioning system air-valve control circuit board |
| CN109812944B (en) * | 2019-03-20 | 2023-12-01 | 杭州地铁运营有限公司 | Air valve control circuit board of ventilation air conditioning system |
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Application publication date: 20160817 |
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| WD01 | Invention patent application deemed withdrawn after publication |