CN215062967U - Black body temperature control system - Google Patents
Black body temperature control system Download PDFInfo
- Publication number
- CN215062967U CN215062967U CN202023294255.3U CN202023294255U CN215062967U CN 215062967 U CN215062967 U CN 215062967U CN 202023294255 U CN202023294255 U CN 202023294255U CN 215062967 U CN215062967 U CN 215062967U
- Authority
- CN
- China
- Prior art keywords
- module
- temperature
- control system
- black body
- main control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
Landscapes
- Control Of Temperature (AREA)
Abstract
The utility model discloses a black body temperature control system belongs to control system technical field, and control system includes the inside temperature acquisition module of black body, host system, the module of heating that connects gradually, and the key lies in: the control system further comprises an ambient temperature acquisition module and a fluid stirrer, and the ambient temperature acquisition module, the main control module and the fluid stirrer are sequentially connected. The difference between the blackbody temperature rise process and the blackbody temperature reduction process is adapted through parameter rationalization, namely asymmetry, so that the dynamic performance and the steady-state performance of the blackbody temperature control process reach good levels, the speed, the accuracy and the stability of blackbody temperature control can be improved, the overshoot is reduced, the preheating time of the whole system is shortened, and the calibration result of corresponding infrared equipment is more stable, accurate and rapid.
Description
Technical Field
The utility model belongs to the technical field of control system, a black body temperature control system is related to.
Background
In the infrared temperature measurement system, the calibration is required to be carried out firstly, the black body provides standard temperature for the infrared temperature measurement system to calibrate, and the accuracy, stability and the like of the temperature of the black body play a key role in the calibration process. In order to obtain a standard temperature with high accuracy and high stability, a good blackbody temperature control system is required.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an overcome prior art not enough, designed a black body temperature control system, improved the degree of accuracy and the stability of black body temperature, the calibration result of corresponding infrared equipment is more stable, accurate, quick.
The difference between the blackbody temperature rise process and the blackbody temperature reduction process is adapted through parameter rationalization, namely asymmetry, so that the dynamic performance and the steady-state performance of the blackbody temperature control process reach good levels, the speed, the accuracy and the stability of blackbody temperature control can be improved, the overshoot is reduced, the preheating time of the whole system is shortened, and the calibration result of corresponding infrared equipment is more stable, accurate and rapid.
The utility model adopts the following specific technical proposal: the utility model provides a black body temperature control system, includes the inside temperature acquisition module of black body, host system, the heating module that connect gradually, and the key lies in: the control system further comprises an ambient temperature acquisition module and a fluid stirrer, and the ambient temperature acquisition module, the main control module and the fluid stirrer are sequentially connected.
The control system also comprises a refrigeration module connected with the output end of the main control module.
The control system also comprises a data transmission module connected with the main control module.
The data transmission module comprises a serial interface for communicating with the outside.
The black body internal temperature acquisition module comprises a resistance temperature sensor, a sensor interface circuit and an analog-to-digital converter which are sequentially connected, and the output end of the analog-to-digital converter is connected with the main control module.
The environment temperature acquisition module is a digital temperature sensor.
The heating module comprises a power switch circuit connected with the output end of the main control module and an electric heating piece connected with the output end of the power switch circuit.
The heating module further comprises a temperature switch connected with the output end of the main control module and a convection fan connected with the temperature switch.
The refrigeration module comprises a refrigeration piece, a cold guide piece and a cold guide fan, and the controlled ends of the refrigeration piece and the refrigeration fan are connected with the output end of the main control module.
The refrigeration module further comprises a radiating fin and a radiating fan, and the controlled end of the radiating fan is connected with the output end of the main control module.
The main control module is an embedded microprocessor.
The utility model discloses a theory of operation and beneficial effect are: the current temperature inside the black body can be periodically collected by the black body internal temperature collection module, the environment temperature outside the black body can be periodically collected by the environment temperature collection module, the temperature difference interval where the temperature difference value of the target temperature and the environment temperature T01 is located is judged by the main control module according to the target temperature and the environment temperature, and a corresponding control mode is sent to the fluid stirrer according to the temperature difference interval where the temperature difference value of the target temperature and the temperature difference value of the environment temperature T01, and the temperature interval where the temperature difference value of the target temperature and the temperature difference value of the environment temperature is located is judged by the main control module according to the target temperature and the current temperature, and a corresponding control instruction is sent to the heating component according to the temperature interval where the temperature difference value is located. The utility model discloses with parametric rationalization adapt to the asymmetry of black body intensification process and cooling process, make the dynamic behavior and the stable state performance of black body temperature control process all reach good level, can improve the degree of accuracy and the stability of black body temperature, the calibration result of corresponding infrared equipment is more accurate.
Drawings
Fig. 1 is a schematic block diagram of the present invention.
Fig. 2 is the utility model discloses well blackbody inside temperature acquisition module's functional block diagram.
Fig. 3 is a schematic block diagram of the middle heating module of the present invention.
Fig. 4 is a flow chart of the present invention.
Fig. 5 is the schematic diagram of the middle temperature difference range and the temperature range of the present invention.
In the attached drawing, 1, a black body internal temperature acquisition module, 1-1, a resistance temperature sensor, 1-2, a sensor interface circuit, 1-3, an analog-to-digital converter, 2, a main control module, 3, a heating module, 3-1, a power switch circuit, 3-2, an electric heating sheet, 3-3, a temperature switch, 3-4, a convection fan, 4, an environment temperature acquisition module, 5, a refrigeration module, 6, a data transmission module, 7 and a fluid stirrer are arranged.
Detailed Description
The present invention will be described in detail with reference to the following drawings and specific embodiments:
in a specific embodiment, as shown in fig. 1, a blackbody temperature control system includes a blackbody internal temperature acquisition module 1, a main control module 2, and a heating module 3, which are connected in sequence, where the main control module 2 is an embedded microprocessor, the control system further includes an ambient temperature acquisition module 4 and a fluid stirrer 7, and the ambient temperature acquisition module 4, the main control module 2 and the fluid stirrer 7 are connected in sequence.
As shown in fig. 2, the blackbody internal temperature acquisition module 1 includes a resistance temperature sensor 1-1, a sensor interface circuit 1-2, and an analog-to-digital converter 1-3, which are connected in sequence, and an output end of the analog-to-digital converter 1-3 is connected with the main control module 2. As shown in fig. 3, the heating module 3 includes a power switch circuit 3-1 connected to the output terminal of the main control module 2, and an electric heating plate 3-2 connected to the output terminal of the power switch circuit 3-1. The heating module 3 further comprises a temperature switch 3-3 connected with the output end of the main control module 2 and a convection fan 3-4 connected with the temperature switch 3-3, heat in the black body is distributed more uniformly by the convection fan 3-4, and data collected by the resistance temperature sensor 1-1 is more accurate.
Further, the control system further comprises a refrigeration module 5 connected with the output end of the main control module 2, so that the black body can be refrigerated according to actual needs, and different use requirements can be better met. The refrigeration module 5 comprises a refrigeration piece, a cold guide piece and a cold guide fan, and the controlled ends of the refrigeration piece and the refrigeration fan are connected with the output end of the main control module 2. The cold guide sheet and the cold guide fan enable the cold air to be distributed more uniformly in the black body, and the data acquired by the resistance temperature sensor 1-1 is more accurate. The refrigeration module 5 further comprises a radiating fin and a radiating fan, the controlled end of the radiating fan is connected with the output end of the main control module 2, and the radiating fin and the radiating fan can further improve the uniformity of cold air distribution in the black body.
Furthermore, the control system further comprises a data transmission module 6 connected with the main control module 2, and all data of the black body can be transmitted and stored in real time by using the data transmission module 6, or displayed through display equipment, so that the data can be conveniently viewed. The data transmission module 6 includes a serial interface for communicating with the outside, and is convenient to connect and disconnect.
The utility model discloses when in actual use, including following step:
A. the method comprises the following steps of electrifying a system, carrying out initialization configuration, setting temperature difference intervals and the number of temperature intervals, setting the temperature value of a demarcation point of each temperature difference interval and each temperature interval, and setting the target temperature T0 of a black body;
B. the black body temperature acquisition module acquires the current temperature T02 of the black body, the environment temperature acquisition module acquires the environment temperature T01 outside the black body, and the main control module judges a temperature difference interval of the temperature difference value of the target temperature T0 and the environment temperature T01; the main control module sets a fluid stirrer control mode according to a temperature difference interval where a temperature difference delta T1 between a target temperature T0 and an ambient temperature T01 is located;
C. and on the basis of the temperature difference interval in the step B, the main control module directly sets a heating component control mode according to different temperature difference intervals or further judges the temperature interval where the temperature difference value of the target temperature T0 and the current temperature T02 is located according to the target temperature T0 and the current temperature T02, and sets the heating component control mode according to the temperature interval.
As shown in fig. 5, the number of temperature difference intervals is four and is: a temperature difference interval 1 with a temperature value of more than c deg.C, a temperature difference interval 2 with a temperature value of (c-b) deg.C, a temperature difference interval 3 with a temperature value of (b-a) deg.C, and a temperature difference interval 4 with a temperature value of less than a deg.C, wherein a < b < c, for example, a value Δ T1 of T0 minus T01 is equal to 10 deg.C and belongs to temperature difference interval 1, a value Δ T1 of T0 minus T01 is equal to 5 deg.C and belongs to temperature difference interval 2, a value Δ T1 of T0 minus T01 is equal to 1 deg.C and belongs to temperature difference interval 3, a value Δ T1 of T0 minus T01 is less than 0 deg.C and belongs to temperature difference interval 4,
when the value delta T1 obtained by subtracting T01 from T0 belongs to the temperature difference interval 1, the control mode is that the fluid stirrer (namely the convection fan) runs at full speed, and the temperature is controlled by the heater (namely the electric heating piece);
when the value delta T1 obtained by subtracting T01 from T0 belongs to the temperature difference interval 2, the control mode is that the fluid stirrer (namely the convection fan) is operated at a reduced speed, and the temperature is controlled by the heater (namely the electric heating piece);
when the value delta T1 obtained by subtracting T01 from T0 belongs to the temperature difference interval 3, the control mode is that the PID strategy of the fluid stirrer (namely the convection fan) is operated and the heater (namely the electric heating piece) is stopped;
when the value Δ T1 of T0 minus T01 belongs to the temperature difference interval 4, the control mode is such that the fluid agitator (i.e., convection fan) stops operating and the heater (i.e., electric heating plate) stops operating.
When the value Δ T1 of T0 minus T01 belongs to the temperature difference section 1 or the temperature difference section 2, the heating means control mode is further set according to the temperature section in which the temperature difference Δ T2 between the target temperature T0 and the current temperature T02 is located.
As shown in fig. 5, the number of temperature intervals is four and is: a temperature interval 1 with a temperature value of more than k ℃, a temperature interval 2 with a temperature value of (k-j) DEG C, a temperature interval 3 with a temperature value of (j-i) DEG C and a temperature interval 4 with a temperature value of less than i DEG C, wherein i < j < k, for example, a value of T0 minus T02, DeltaT 2, is more than or equal to 5 ℃, belongs to the temperature interval 1, a value of T0 minus T02, DeltaT 2, is more than 0 and less than 5 ℃, belongs to the temperature interval 2, a value of T0 minus T02, DeltaT 2, is less than 0 and more than or equal to-0.1 ℃, belongs to the temperature interval 3, and a value of T2, less than-0.1 ℃, of T0 minus T02, belongs to the temperature interval 4,
when the value delta T2 obtained by subtracting T02 from T0 belongs to the temperature interval 1, the heater (namely the electric heating sheet) runs at full power, so that the temperature inside the black body is increased;
when the value delta T2 obtained by subtracting T02 from T0 belongs to the temperature interval 2, judging whether the starting is started for the first time, and if so, adopting a suppressive temperature rise PID strategy; if the starting is not the first time, adopting a PID strategy of a conventional control mode 1; in the suppression temperature rise PID strategy, the temperature rise speed tends to slow down as the current temperature value approaches the target temperature; in the PID strategy of the conventional control mode 1, a PID parameter 1 adaptive to the temperature rise process is adopted; the heating process refers to a heating process by a heater;
when the value delta T2 obtained by subtracting T02 from T0 belongs to the temperature interval 3, adopting a PID strategy of a conventional control mode 2;
when the value delta T2 obtained by subtracting T02 from T0 belongs to the temperature interval 4, judging whether the starting is started for the first time, and if so, adopting a temperature quick drop PID strategy; if the temperature is not started for the first time, adopting a PID strategy of a conventional control mode 2 which is the same as the temperature interval 3; in the rapid temperature drop PID strategy, the temperature is rapidly reduced to turn off a heater (namely an electric heating piece); in the PID strategy of the conventional control mode 2, a PID parameter 2 adaptive to the temperature reduction process is adopted; the cooling process refers to a natural cooling process, and the PID strategy refers to a specific PID parameter combination and is related to the physical characteristics of a specific blackbody.
If the natural cooling process is changed into a cooling process controlled by a refrigerator, the PID strategy in the whole temperature control flow can be changed into a conventional PID strategy with strong symmetry between the heating process and the cooling process.
Set for the interval time, step B, C is carried out repeatedly, can utilize black body internal temperature collection module to carry out periodic collection to black body internal temperature, utilize ambient temperature collection module to carry out periodic collection to the outside ambient temperature of black body, adapt to the difference of black body intensification process and cooling process with the rationalization of parameter, asymmetry promptly, make the dynamic behavior and the steady state performance of black body temperature control process all reach good level, can improve black body temperature control's speed, the degree of accuracy and stability, reduce the overshoot, shorten entire system's preheating time, corresponding infrared equipment's calibration result is more stable, accurate, quick.
Claims (10)
1. The utility model provides a black body temperature control system, includes the inside temperature acquisition module of black body (1), host system (2), the heating module (3) that connect gradually, its characterized in that: the control system further comprises an ambient temperature acquisition module (4) and a fluid stirrer (7), wherein the ambient temperature acquisition module (4), the main control module (2) and the fluid stirrer (7) are sequentially connected.
2. A black body temperature control system according to claim 1, wherein: the control system also comprises a refrigeration module (5) connected with the output end of the main control module (2).
3. A black body temperature control system according to claim 1, wherein: the control system also comprises a data transmission module (6) connected with the main control module (2).
4. A black body temperature control system according to claim 3, wherein: the data transmission module (6) comprises a serial interface for communicating with the outside.
5. A black body temperature control system according to claim 1, wherein: the blackbody internal temperature acquisition module (1) comprises a resistance temperature sensor (1-1), a sensor interface circuit (1-2) and an analog-to-digital converter (1-3) which are sequentially connected, and the output end of the analog-to-digital converter (1-3) is connected with the main control module (2).
6. A black body temperature control system according to claim 1, wherein: the environment temperature acquisition module (4) is a digital temperature sensor.
7. A black body temperature control system according to claim 1, wherein: the heating module (3) comprises a power switch circuit (3-1) connected with the output end of the main control module (2) and an electric heating piece (3-2) connected with the output end of the power switch circuit (3-1).
8. A black body temperature control system according to claim 7, wherein: the heating module (3) further comprises a temperature switch (3-3) connected with the output end of the main control module (2) and a convection fan (3-4) connected with the temperature switch (3-3).
9. A black body temperature control system according to claim 2, wherein: the refrigeration module (5) comprises a refrigeration piece, a cold guide piece and a cold guide fan, and the controlled ends of the refrigeration piece and the refrigeration fan are connected with the output end of the main control module (2).
10. A black body temperature control system according to claim 2, wherein: the refrigeration module (5) further comprises a radiating fin and a radiating fan, and the controlled end of the radiating fan is connected with the output end of the main control module (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023294255.3U CN215062967U (en) | 2020-12-31 | 2020-12-31 | Black body temperature control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023294255.3U CN215062967U (en) | 2020-12-31 | 2020-12-31 | Black body temperature control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215062967U true CN215062967U (en) | 2021-12-07 |
Family
ID=79223840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023294255.3U Active CN215062967U (en) | 2020-12-31 | 2020-12-31 | Black body temperature control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215062967U (en) |
-
2020
- 2020-12-31 CN CN202023294255.3U patent/CN215062967U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109782827A (en) | Cooling control method and equipment, electronic equipment and computer readable storage medium | |
| CN107559902B (en) | Temperature control method and heating cooking device | |
| CN212051120U (en) | Automatic temperature regulating system of glass annealing furnace | |
| CN107560113A (en) | A kind of intelligent air conditioner control method and air conditioner | |
| CN109631078A (en) | A kind of gas heater and its blower self-correction control method and control system | |
| CN103363671B (en) | Air energy water heater and control method and device thereof | |
| CN102489354B (en) | System for controlling constant temperature metal bath and method thereof | |
| CN113251614B (en) | Air conditioner temperature control method and device, electronic equipment and storage medium | |
| CN109828193B (en) | Junction temperature calibration and heat dissipation assembly performance evaluation device with dynamically-unchanged bias current | |
| CN111289828A (en) | Constant temperature testing device, temperature control method, host, equipment and medium | |
| CN103279155A (en) | Temperature control system | |
| CN215062967U (en) | Black body temperature control system | |
| CN111766516B (en) | Direct current motor parameter calibration method and device | |
| CN105675142A (en) | Infrared ear thermometer calibration device and method based on three-cavity blackbody radiation source | |
| WO2020000839A1 (en) | Air conditioning device, and control method therefor and apparatus thereof | |
| CN102902287A (en) | Electric spindle active thermal balance temperature control device and temperature control method | |
| CN113296559A (en) | Self-adaptive electric heating constant temperature controller and constant temperature control method | |
| CN208999333U (en) | A kind of Cabinet heat transfer coefficient test macro | |
| CN108594898A (en) | Oven temperature control method, device and computer readable storage medium | |
| EP3039502A1 (en) | Method for temperature control | |
| CN112817349B (en) | Black body temperature control method | |
| CN103869694B (en) | Actuator and operational ton output intent | |
| CN109613414A (en) | The method and system of controllable hot environment aging life-span chamber temperature changing process | |
| CN115218386A (en) | Air conditioner control method and device and air conditioner | |
| CN110562009B (en) | Control method of air conditioner heater of electric automobile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |