CN104949300B - A kind of thermoregulator and its implementation of single channel A/D conversion - Google Patents
A kind of thermoregulator and its implementation of single channel A/D conversion Download PDFInfo
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- CN104949300B CN104949300B CN201510436145.0A CN201510436145A CN104949300B CN 104949300 B CN104949300 B CN 104949300B CN 201510436145 A CN201510436145 A CN 201510436145A CN 104949300 B CN104949300 B CN 104949300B
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- temperature
- thermoregulator
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- conversion
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 37
- 238000001816 cooling Methods 0.000 claims description 14
- 238000010438 heat treatment Methods 0.000 claims description 14
- 230000008859 change Effects 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 12
- 238000005259 measurement Methods 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 2
- 238000002955 isolation Methods 0.000 claims description 2
- 230000008054 signal transmission Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000009466 transformation Effects 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
-
- 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
- F24F11/89—Arrangement or mounting of control or safety devices
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Resistance Heating (AREA)
Abstract
The invention discloses the thermoregulators and its implementation of a kind of single channel A/D conversion, the thermoregulator of single channel A/D conversion is connected with temperature controller, it includes the temperature sensor R for the detecting room temperature and variable resistance W for setting required room temperature, temperature sensor R and variable resistance W is connected in series, and variable resistance W is also connected in parallel with a normal open switch K.The thermoregulator of single channel A/D conversion of the invention, a normal open switch K is arranged in the both ends variable resistance W inside thermoregulator, only piece conducting wire of setting connects between thermoregulator and temperature controller, temperature controller also only takes up an input/output port, circuit structure is simple, resource occupation can be saved, a route need to be only laid with when installing indoors, route cost of installation and use is greatly saved.
Description
Technical field
The present invention relates to room temperature regulation technology fields, and in particular to a kind of thermoregulator of single channel A/D conversion and
Its implementation.
Background technique
As the improvement of people's living standards, indoor temperature regulating device using more and more extensive, for adjusting temperature
Adjuster be generally mounted on indoor wall, people set required temperature by thermoregulator, and adjuster passes through electricity
Line or cable are connected with temperature controller.The indoor temperature information of controller temperature collection sensor, by with set by adjuster
Fixed temperature is compared to control heating or cooling device, and room temperature is made to maintain set temperature.
Connection relationship and working principle between normal temperature adjuster and controller, as shown in Figure 1, Fig. 1 dotted line is enclosed
Part is the internal structure of thermoregulator, and wherein Ni1000 is temperature sensor, and for detecting room temperature, temperature change makes
Its resistance value changes, and sends the I/O mouth of controller CPU to after A/D is converted, and controller reads current indoor temperature value.It can
Power transformation resistance W is used for setting required room temperature, changes the resistance value of variable resistance by adjusting knob, and by A/D conversion after
Another I/O mouthfuls for giving controller CPU, controller read set temperature value.Controller by comparing set temperature value and
The corresponding heating of room temperature control and cooling device, make room temperature maintain set temperature.As it can be seen that this temperature is adjusted
Two conducting wire connections are needed between device and controller, occupy two I/O mouthfuls of controller CPU, occupancy resource is larger, while
Need to be laid with two lines road when indoor location and be connected to controller, and indoor controller generally have between adjuster it is certain away from
From, therefore cost of installation and use is higher.
Summary of the invention
In order to solve the above-mentioned technical problems, the present invention provides a kind of single channel A/D conversion thermoregulator implementation method,
A normal open switch is arranged in variable resistance both ends inside thermoregulator, and variable resistance can be changed in the resistor body for sliding it
Resistance value, when sliding into certain position and being closed normal open switch, then variable resistance is just short-circuited；It is also set up inside thermoregulator
There is temperature sensor, temperature sensor is connected with variable resistance, and only setting one is led between thermoregulator and temperature controller
Line connection, temperature controller also only take up an input/output port, and such design can save resource occupation.
To achieve the goals above, the present invention adopts the following technical scheme that.
A kind of thermoregulator of single channel A/D conversion, it is connected with temperature controller, it includes for detecting Indoor Temperature
The temperature sensor R of degree and variable resistance W for setting required room temperature；Temperature sensor R connects company with variable resistance W
It connects, variable resistance W is also connected in parallel with a normal open switch K.
Preferably, the variable resistance W include a resistor body and an adjuster knob, rotary regulator knob with
Change the resistance value of variable resistance W.
In any of the above-described technical solution preferably, the temperature controller includes a central processor CPU, described
Central processor CPU includes an input/output port I/O.
In any of the above-described technical solution preferably, one is provided between the temperature controller and thermoregulator
Modulus converter A/D.
In any of the above-described technical solution preferably, the temperature sensor R and resistance R0It is connected in analog-to-digital conversion
The input interface of device A/D, the output interface of modulus converter A/D are connected with the input/output port I/O of central processor CPU
It connects.
In any of the above-described technical solution preferably, the temperature sensor R uses Ni1000 type temperature sensor.
The invention also discloses a kind of implementation methods of the thermoregulator of single channel A/D conversion, use as above any one
The thermoregulator of single channel A/D conversion described in, the implementation method of the thermoregulator of single channel A/D conversion include:
It is normally opened when the adjuster knob of the variable resistance W of thermoregulator is in certain position and presses normal open switch K
Switch K closure, variable resistance W are short-circuited；
During the normal open switch K of thermoregulator is opened, circuitous resistance is the resistance value and temperature sensor of variable resistance W
The sum of resistance value of R, the i.e. value of W+R；
When adjusting temperature, rotary regulator knob makes the resistance value of variable resistance W change, when being adjusted to set temperature
When, pressing normal open switch K is closed normal open switch K, and at this moment values of circuit resistances is the resistance value of temperature sensor R, makes when loosing one's grip again
When normal open switch K restores to open, circuitous resistance restores the value of the W+R of former setting, this allows for circuitous resistance resistance value and generates one
Negative pulse, the negative pulse are sent to the input/output port I/O of the central processor CPU of temperature controller, central processor CPU root
According to received negative pulse judge that the temperature setting of thermoregulator finishes, and record resistance value W+ corresponding to set temperature
The resistance value of temperature sensor R corresponding to R value and Current Temperatures, temperature controller are controlled according to set temperature and Current Temperatures
System heating and cooling device make room temperature reach set temperature；
When the temperature varies, the resistance value of temperature sensor R changes, and numerical value is turned by modulus converter A/D
It is sent after changing to the input/output port I/O of the central processor CPU of temperature controller, temperature controller is by comparing Current Temperatures
Heating or cooling device are controlled with set temperature, so that controlling room temperature maintains set temperature.
The thermoregulator of single channel A/D conversion of the invention, the both ends the variable resistance W setting one inside thermoregulator
A normal open switch K slides the resistance value of the changeable variable W of resistor body of W, when sliding into certain position and be closed normal open switch K,
Then variable resistance W is just short-circuited.Temperature sensor R, temperature sensor R and variable resistance W are additionally provided with inside thermoregulator
Series connection, only piece conducting wire of setting connects between thermoregulator and temperature controller, and temperature controller also only takes up an input
Output port, circuit structure is simple, can save resource occupation, need to only be laid with a route when installing indoors, be greatly saved
Route cost of installation and use.
Detailed description of the invention
Connection schematic diagram of the Fig. 1 between normal temperature adjuster and controller；
Fig. 2 is the thermoregulator of single channel A/D according to the invention conversion and a preferred embodiment of its implementation
Connection schematic diagram between thermoregulator and controller；
Fig. 3 and Fig. 4 is the thermoregulator of single channel A/D according to the invention conversion and a preferred implementation of its implementation
The generation process schematic of negative pulse when the adjusting temperature of example.
Specific embodiment
It elaborates, is described below only as demonstration reconciliation to the present invention with reference to the accompanying drawings and detailed description
It releases, it is intended that the present invention is limited in any way.
Embodiment 1
The thermoregulator of single channel A/D conversion is connected with temperature controller, and the thermoregulator of single channel A/D conversion includes
Variable resistance W for detecting the temperature sensor R of room temperature and for setting required room temperature, temperature sensor R with
Variable resistance W is connected in series, and variable resistance W is also in parallel with a normal open switch K.Variable resistance W include resistor body and
One adjuster knob, rotary regulator knob is to change the resistance value of variable resistance W；Temperature controller includes a central processing
Device CPU, central processor CPU include an input/output port I/O；One is provided between temperature controller and thermoregulator
A modulus converter A/D；Temperature sensor R and resistance R0It is connected in the input interface of modulus converter A/D, analog-digital converter
The output interface of A/D is connected with the input/output port I/O of central processor CPU；Temperature sensor R can select Ni1000
The sensor component for measurement and control of temperature of type temperature sensor or other models.
The realization principle of the thermoregulator of single channel A/D conversion: when the adjuster rotation of the variable resistance W of thermoregulator
When button is in certain position and presses normal open switch K, normal open switch K closure, variable resistance W is short-circuited；When thermoregulator
During normal open switch K is opened, circuitous resistance is the sum of resistance value and resistance value of temperature sensor R of variable resistance W, the i.e. value of W+R.
The realization process of the thermoregulator of single channel A/D conversion: when adjusting temperature, rotary regulator knob makes can be changed
The resistance value of resistance W changes, and when being adjusted to set temperature, pressing normal open switch K is closed normal open switch K, at this moment circuit
Resistance value is the resistance value of temperature sensor R, and when loose one's grip makes normal open switch K restore to open again, circuitous resistance restores the W of former setting
The value of+R, this allows for circuitous resistance resistance value and generates a negative pulse, which is sent to the central processing unit of temperature controller
The input/output port I/O of CPU, central processor CPU according to received negative pulse judge thermoregulator temperature set
It finishes, and records the resistance value of temperature sensor R corresponding to resistance value W+R value corresponding to set temperature and Current Temperatures,
Temperature controller, which controls heating and cooling device according to set temperature and Current Temperatures, makes room temperature reach set temperature
Degree；When the temperature varies, the resistance value of temperature sensor R changes, and numerical value is sent after being converted by modulus converter A/D
To the input/output port I/O of the central processor CPU of temperature controller, temperature controller is by comparing Current Temperatures and set
Temperature is determined to control heating or cooling device, so that controlling room temperature maintains set temperature.
Embodiment 2
As shown in Fig. 2, the dotted line of Fig. 2 encloses the internal structure that part shows the thermoregulator of single channel A/D conversion, it is single
The thermoregulator of road A/D conversion includes temperature sensor R, variable resistance W, and temperature sensor R, can for detecting room temperature
For setting required room temperature, temperature sensor R and variable resistance W are connected in series power transformation resistance W, variable resistance W also with one
Normal open switch K is connected in parallel.Temperature sensor R selects Siemens Ni1000 type temperature sensor, Ni1000 temperature sensor benefit
Temperature change is changed into voltage change, then converted through DC isolation by the characteristic changed with the resistance value of nickel resistance with temperature, is obtained
It is exported with the complete DC voltage or DC current corresponding to measured point temperature being isolated of input temp sensor；Ni1000 temperature passes
Temperature signal is converted to electric signal transmission to adjuster by sensor, realizes precise measurement and control to temperature.Variable resistance W packet
Include a resistor body and an adjuster knob, rotary regulator knob is to change the resistance value of variable resistance W.Temperature controller packet
A central processor CPU is included, central processor CPU includes an input/output port I/O.The temperature tune of single channel A/D conversion
Section device is connected with temperature controller, and a modulus converter A/D is provided between temperature controller and thermoregulator.
Ni1000 type temperature sensor R and resistance R0Be connected in the input interface of modulus converter A/D, modulus converter A/D it is defeated
Outgoing interface is connected with the input/output port I/O of central processor CPU.
The thermoregulator of single channel A/D conversion, the both ends the variable resistance W setting one inside thermoregulator are normally opened
Switch K, the resistance value for sliding the changeable variable W of resistor body of W then can be changed when sliding into certain position and being closed normal open switch K
Resistance W is just short-circuited.Temperature sensor R is additionally provided with inside thermoregulator, temperature sensor R connects with variable resistance W, temperature
It spends between adjuster and temperature controller and a conducting wire connection is only set, temperature controller also only takes up an input/output terminal
Mouthful, circuit structure is simple, can save resource occupation.
The thermoregulator of single channel A/D conversion with above structure, its implementation method are as follows:
It is normally opened when the adjuster knob of the variable resistance W of thermoregulator is in certain position and presses normal open switch K
Switch K closure, variable resistance W are short-circuited；
During the normal open switch K of thermoregulator is opened, circuitous resistance is the resistance value and Ni1000 type temperature of variable resistance W
Spend the sum of the resistance value of sensor, the i.e. value of W+R；
When adjusting temperature, rotary regulator knob makes the resistance value of variable resistance W change, when being adjusted to set temperature
When, pressing normal open switch K is closed normal open switch K, and at this moment values of circuit resistances is the resistance value of Ni1000 type temperature sensor, when again
It looses one's grip when normal open switch K being made to restore to open, circuitous resistance restores the value of the W+R of former setting, this allows for the production of circuitous resistance resistance value
(the generation process of negative pulse is as shown in Figure 3 and Figure 4, and Fig. 3 is negative pulse schematic diagram when heating is adjusted, Fig. 4 for a raw negative pulse
Negative pulse schematic diagram when being adjusted for cooling), which is sent to the input/output terminal of the central processor CPU of temperature controller
Mouthful I/O, central processor CPU judge that the temperature of thermoregulator is set according to institute's received negative pulse and finish, and set by record
Determine the resistance value of Ni1000 type temperature sensor corresponding to resistance value W+R value and Current Temperatures corresponding to temperature, temperature control
Device, which controls heating and cooling device according to set temperature and Current Temperatures, makes room temperature reach set temperature；
When the temperature varies, the resistance value of Ni1000 type temperature sensor changes, and numerical value passes through analog-to-digital conversion
It send after device A/D conversion to the input/output port I/O of the central processor CPU of temperature controller, temperature controller is by comparing
Current Temperatures and set temperature control heating or cooling device, so that controlling room temperature maintains set temperature.
The thermoregulator of single channel A/D conversion, temperature sensor R use Siemens Ni1000 temperature sensor, and can
The switch that power transformation hinders W parallel connection uses normal open switch, to certain position and is closed normal open switch K when adjusting variable resistance W, can power transformation
Resistance W will be short-circuited, and during normal open switch K is constantly in opening, circuitous resistance is just that variable resistance W and Ni1000 temperature pass
The sum of the resistance value of sensor R, the as value of W+R.Indoors in temperature adjustment process: when adjusting temperature, rotary regulator knob
So that variable resistance resistance value is changed, when being transferred to set temperature, presses normal open switch K and be allowed to be closed, at this moment circuitous resistance
Value is the resistance value of R, and when loose one's grip makes normal open switch K restore to open again, circuitous resistance restores the W+R value of former setting, so that circuit
Resistance generates a negative pulse, and negative pulse is reached to the I/O of temperature controller CPU, and CPU sentences according to the received negative pulse of institute
The temperature setting of disconnected thermoregulator finishes, and resistance value W+R value corresponding to the set temperature of record and Current Temperatures institute are right
The resistance value of the R answered, temperature controller, which controls heating and cooling device according to set temperature and Current Temperatures, makes room temperature
Reach set temperature；When the temperature varies, the resistance value of R changes, and numerical value is sent after being converted by A/D to temperature control
The I/O of device CPU processed, temperature controller control heating or cooling device by comparing Current Temperatures and set temperature, thus
Control room temperature maintains set temperature.
Embodiment 3
Variable resistance W for detecting the temperature sensor R of room temperature and for setting required room temperature constitutes temperature
Adjuster is spent, thermoregulator is converted by single channel A/D to be connected with temperature controller.Thermoregulator sets required temperature simultaneously
Be connected by electric wire or cable with temperature controller, the indoor temperature information of temperature controller temperature collection sensor, by with
Temperature set by thermoregulator is compared to control heating or cooling device, then maintains room temperature set
Temperature.The advantages of thermoregulator of this single channel A/D conversion, is that there was only one between the thermoregulator and controller leads
Line connects, and only takes up one I/O mouthfuls of controller CPU, need to only be laid with a line when can save resource, while install indoors
Route cost of installation and use is greatly saved in road.
In the thermoregulator of single channel A/D conversion, a unitary adjustable resistance switch device can be set, one
Formula adjustable resistance switching device is a kind of switching device of the adjustable resistance of belt switch, and " variable resistance W parallel connection can be substituted with it
Have a normal open switch K " mode, unitary adjustable resistance switch device realized by the rotation axis driving of adjustable resistance connect and
It disconnects, switch form can be that spring button formula, spring are rotary, shifting block is rotary or plug-type, such as spring is rotary
Switch be exactly using axis rotation drive spring one end linkage, drive again the spring other end link contact chip so that spring bounce,
Push contact quick-make or disconnection.The adjustable resistance switching device of integral type is more preferable in terms of contact, reliability, adjustable electric
Hindering can all be switched on any adjusting position by axial movement closure or openness, and performance is more stable, and the service life is longer.
Temperature controller includes a central processor CPU, and central processor CPU includes an input/output port I/O；
A modulus converter A/D is provided between temperature controller and thermoregulator；Temperature sensor R and resistance R0It is connected in
The input interface of modulus converter A/D, the output interface of modulus converter A/D and the input/output port of central processor CPU
I/O is connected；Unitary adjustable resistance switch device and temperature sensor R are connected in series；Temperature sensor R can be selected
The sensor component for measurement and control of temperature of Ni1000 type temperature sensor or other models.The temperature of single channel A/D conversion is adjusted
The principle and realization process of device are as previously mentioned, repeat no more.
The above is only that preferred embodiments of the present invention will be described, is limited the scope of the present invention
Fixed, without departing from the spirit of the design of the present invention, this field ordinary engineering and technical personnel makees technical solution of the present invention
Various changes and improvements out, should fall within the scope of protection determined by the claims of the present invention.
Claims (4)
1. a kind of thermoregulator of single channel A/D conversion, is connected, it includes for detecting room temperature with temperature controller
Temperature sensor (R) and variable resistance (W) for setting required room temperature, it is characterised in that: the temperature sensor (R)
It is connected in series with variable resistance (W), the variable resistance (W) is also connected in parallel with a normal open switch (K)；The temperature sensing
Device (R) uses Ni1000 type temperature sensor, and temperature change is changed into voltage change by the temperature sensor (R) of Ni1000 type,
Converted again through DC isolation, obtain with input temp sensor it is completely isolated corresponding to the DC voltage of measured point temperature or straight
The output of galvanic electricity stream；Temperature signal is converted to electric signal transmission to adjuster by the temperature sensor (R) of the Ni1000 type, is realized
To the precise measurement and control of temperature；The temperature controller includes a central processing unit (CPU), the central processing unit
It (CPU) include an input/output port (I/O), the temperature sensor (R) and resistance (R0) it is connected in analog-digital converter
(A/D) input interface, the output interface of analog-digital converter (A/D) and the input/output port (I/O) of central processing unit (CPU)
It is connected.
2. the thermoregulator of single channel A/D as described in claim 1 conversion, it is characterised in that: the variable resistance (W) includes
One resistor body and an adjuster knob, rotary regulator knob is to change the resistance value of variable resistance (W).
3. the thermoregulator of single channel A/D conversion as described in claim 1, it is characterised in that: the temperature controller and temperature
An analog-digital converter (A/D) is provided between degree adjuster.
4. a kind of implementation method of the thermoregulator of single channel A/D conversion, uses such as any one of claims 1 to 3 institute
The thermoregulator for the single channel A/D conversion stated, it is characterised in that: the implementation method of the thermoregulator of the single channel A/D conversion
Include:
It is normally opened when the adjuster knob of the variable resistance (W) of thermoregulator is in certain position and presses normal open switch (K)
(K) closure is switched, variable resistance (W) is short-circuited；
During the normal open switch (K) of thermoregulator is opened, circuitous resistance is the resistance value and temperature sensor of variable resistance (W)
(R) the sum of resistance value, the i.e. value of W+R；
When adjusting temperature, rotary regulator knob makes the resistance value of variable resistance (W) change, when being adjusted to set temperature
When, pressing normal open switch (K) is closed normal open switch (K), and at this moment values of circuit resistances is the resistance value of temperature sensor (R), when again
It looses one's grip when normal open switch (K) being made to restore to open, circuitous resistance restores the value of the W+R of former setting, this allows for circuitous resistance resistance value
A negative pulse is generated, which is sent to the input/output port (I/O) of the central processing unit (CPU) of temperature controller, in
Central processor (CPU) according to received negative pulse judge that the temperature setting of thermoregulator finishes, and record set temperature
The resistance value of temperature sensor corresponding to corresponding resistance value W+R value and Current Temperatures (R), temperature controller is according to set by
Temperature and Current Temperatures make room temperature reach set temperature to control heating and cooling device；
When the temperature varies, the resistance value of temperature sensor (R) changes, and numerical value is turned by analog-digital converter (A/D)
It is sent after changing to the input/output port of the central processing unit of temperature controller (CPU) (I/O), temperature controller is by comparing current
Temperature and set temperature control heating or cooling device, so that controlling room temperature maintains set temperature.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510436145.0A CN104949300B (en) | 2015-07-23 | 2015-07-23 | A kind of thermoregulator and its implementation of single channel A/D conversion |
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| CN201510436145.0A CN104949300B (en) | 2015-07-23 | 2015-07-23 | A kind of thermoregulator and its implementation of single channel A/D conversion |
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| CN107643503A (en) * | 2017-07-31 | 2018-01-30 | 惠州市德赛西威汽车电子股份有限公司 | The calibration detection circuit and method of a kind of potentiometer |
| CN109114778B (en) * | 2018-08-20 | 2020-10-09 | 广东美的暖通设备有限公司 | Multi-connected air conditioning system, control method and device thereof and readable storage medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87102709A (en) * | 1986-05-23 | 1987-12-16 | 三菱电机株式会社 | Air regulator |
| CN2232115Y (en) * | 1995-06-13 | 1996-07-31 | 刘耀堂 | Power automatic transfer device for electric heating cooking utensils |
| JPH1172392A (en) * | 1997-08-29 | 1999-03-16 | Toshiba Lighting & Technol Corp | Temperature detector and heating control system |
| KR20000031274A (en) * | 1998-11-04 | 2000-06-05 | 황한규 | Controller of temperature in refrigerator |
-
2015
- 2015-07-23 CN CN201510436145.0A patent/CN104949300B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87102709A (en) * | 1986-05-23 | 1987-12-16 | 三菱电机株式会社 | Air regulator |
| CN2232115Y (en) * | 1995-06-13 | 1996-07-31 | 刘耀堂 | Power automatic transfer device for electric heating cooking utensils |
| JPH1172392A (en) * | 1997-08-29 | 1999-03-16 | Toshiba Lighting & Technol Corp | Temperature detector and heating control system |
| KR20000031274A (en) * | 1998-11-04 | 2000-06-05 | 황한규 | Controller of temperature in refrigerator |
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| CN104949300A (en) | 2015-09-30 |
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