CN215494740U - Constant temperature control device of weather radar receiver - Google Patents
Constant temperature control device of weather radar receiver Download PDFInfo
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- CN215494740U CN215494740U CN202121998994.2U CN202121998994U CN215494740U CN 215494740 U CN215494740 U CN 215494740U CN 202121998994 U CN202121998994 U CN 202121998994U CN 215494740 U CN215494740 U CN 215494740U
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Abstract
The utility model discloses a constant temperature control device of a weather radar receiver, which comprises a computer control device, a main control device, a drive circuit and a constant temperature box. The computer control device comprises an upper computer and an FPGA Ethernet; the master control device comprises a master control circuit and an AD acquisition unit; the driving circuit comprises a refrigerating sheet driving circuit and a heating sheet driving circuit; the incubator comprises a receiver, a temperature sensor, a refrigerating piece and a heating piece. The upper computer is connected to the main control circuit through the FPGA Ethernet, and the feedback end of the main control circuit is connected with the upper computer. The output end of the main control circuit is divided into two paths which are respectively connected to the refrigerating sheet driving circuit and the heating sheet driving circuit, the refrigerating sheet driving circuit and the heating sheet driving circuit are connected to the constant temperature box, and the temperature sensor in the constant temperature box is connected with the input end of the main control circuit through AD acquisition. The device can provide a relatively stable operational environment temperature for the weather radar receiver for the influence that the weather radar can get rid of the temperature drift observes a reliable stable result.
Description
Technical Field
The utility model relates to the technical field of automatic control, in particular to a constant temperature control device of a weather radar receiver.
Background
In recent years, the national work in the aspect of weather forecasting invests a large amount of resources, systematized and systematized weather equipment is built, and weather radars are more and more widely used in various parts of China. The weather radar transmits electromagnetic waves to the sky, receives echoes returned by clouds and rain, and transmits the echoes to the processor to analyze the distribution condition of the clouds and the rain so as to draw a conclusion to predict the weather condition. The weather radar receiver consists of electronic components with various functions and types, the working performance and working parameters of the weather radar receiver are greatly influenced by the ambient temperature, and the weather prediction result is inaccurate due to the influence of the ambient temperature; the long-time operation of various electronic components at low temperature or high temperature can shorten the service life and improve the failure rate.
Some solutions, such as the CN211293771U utility model disclosed in 18/08/2020, can solve the problem of the reduction of the service life of electronic components due to long time under high temperature, but this patent fails to solve the problem of the influence of the weather radar receiver under low temperature working environment, and the control and driving method adopted by this patent is complicated.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of the prior art and provides a constant temperature control device of a weather radar receiver, which has a simpler control driving mode, provides a more stable working environment temperature for the weather radar receiver, enables the weather radar to eliminate the influence of temperature drift and observes a reliable and stable result.
In order to solve the technical problems, the utility model adopts the technical scheme that: a constant temperature control device of a weather radar receiver comprises a computer control device, a main control device, a drive circuit and a constant temperature box.
The computer control device comprises an upper computer and an FPGA Ethernet; the master control device comprises a master control circuit and an AD acquisition unit; the driving circuit comprises a refrigeration driving circuit and a heating driving circuit.
And the upper computer is connected to the main control circuit through the FPGA Ethernet.
The main control circuit comprises a main control circuit output end, a main control circuit input end and a main control circuit feedback end.
And the feedback end of the master control circuit is connected with the upper computer.
The output end of the main control circuit is divided into two paths which are respectively connected to the refrigerating driving sheet circuit and the heating sheet driving circuit; the refrigerating sheet driving circuit and the heating sheet driving circuit are connected to the constant temperature box.
The constant temperature box comprises a receiver, a temperature sensor, a refrigerating piece and a heating piece;
one end of the refrigerating sheet is connected with the refrigerating drive circuit, and the other end of the refrigerating sheet is connected to the receiver; one end of the heating sheet is connected with the heating driving circuit, and the other end of the heating sheet is connected to the receiver.
Still embedded in the receiver has temperature sensor, temperature sensor passes through AD collection and links to each other with the master control circuit input.
Further preferably, the driving circuit adjusts the output voltage to be between 0 and 15V and the maximum current to be 10A by PWM wave.
As a further preferred aspect of the utility model, the FPGA ethernet is of the XC7K325T type.
As a further preferred embodiment of the utility model, the temperature sensor for accurately measuring the ambient temperature of the receiver is of the type LM 20.
As a further preferred aspect of the present invention, the refrigerating sheet is a semiconductor refrigerator; the heating sheet is a ceramic heating sheet.
As a further preference of the utility model, the incubator also comprises a thermostated metal casing for providing rigid protection; the constant-temperature metal shell comprises a constant-temperature metal lower shell used for placing the receiver, the temperature sensor, the refrigerating sheet and the heating sheet, and a constant-temperature metal upper shell used for sealing the constant-temperature metal lower shell.
Further preferably, the oven further comprises a constant temperature outer box body for heat insulation and preservation covering the outer periphery of the constant temperature metal shell.
The utility model has the following beneficial effects: the environment temperature of the weather radar receiver is accurately measured through the temperature sensor, the refrigeration piece and the heating piece are adopted to quickly control the working environment temperature of the weather radar receiver, the working environment temperature of the weather radar receiver is guaranteed to be always in a basically constant state, the influence of temperature drift of the weather radar is eliminated, and a stable and reliable observation result is obtained.
Drawings
Fig. 1 is a schematic connection diagram of a thermostat control device of a weather radar receiver according to the present invention.
Fig. 2 is a schematic block diagram of a thermostat control device of a weather radar receiver of the present invention.
Fig. 3 is an exploded view of an oven of a thermostat control device of a weather radar receiver of the present invention.
Fig. 4 is a flow chart of the operation of the thermostat control device of the weather radar receiver of the utility model.
Among them are:
10. a computer control device; 11. an upper computer; FPGA Ethernet;
20. a master control device; 21. a master control circuit; AD acquisition;
30. a drive circuit; 31. a refrigeration drive circuit; 32. a heating drive circuit;
40. a thermostat; 41. a receiver; 42. a temperature sensor; 43. a refrigeration plate; 44. a heating plate; 45. a constant temperature metal housing; 451. a constant temperature metal lower shell; 452. a constant temperature metal upper housing; 46. a constant temperature outer box body; 461. the outer box body is arranged at constant temperature; 462. the outer box body is arranged at constant temperature; 47. a support; 471. a lower bracket; 472. and (4) an upper bracket.
Detailed Description
In the description of the present invention, it is to be understood that the terms "left side", "right side", "upper part", "lower part", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and that "first", "second", etc., do not represent an important degree of the component parts, and thus are not to be construed as limiting the present invention. The specific dimensions used in the present example are only for illustrating the technical solution and do not limit the scope of protection of the present invention.
The present invention will be described in further detail with reference to the accompanying drawings and specific preferred embodiments.
As shown in fig. 1, a thermostat control device of a weather radar receiver includes a computer control device 10, a main control device 20, a driving circuit 30, and an oven 40.
As shown in fig. 2, the computer control device 10 includes an upper computer 11 and an FPGA ethernet 12; the FPGA Ethernet 12 is of model XC7K 325T.
The master control device 20 comprises a master control circuit 21 and an AD acquisition 22.
The driving circuit 30 includes a cooling plate driving circuit 31 and a heating plate driving circuit 32.
The upper computer 11 is connected to the main control circuit 21 through the FPGA ethernet 12.
The master control circuit 21 includes a master control circuit output 211, a master control circuit input 212, and a master control circuit feedback 213. The input end 212 of the main control circuit is connected with the upper computer 11; the output end 211 of the main control circuit is divided into two paths, and the two paths are respectively connected to the refrigerating sheet driving circuit 31 and the heating sheet driving circuit 32.
The cooling plate driving circuit 31 and the heating plate driving circuit 32 are connected to the oven 40.
The driving circuit 30 adopts a pulse width modulation circuit mode, and adjusts the output voltage to be between 0 and 15V and the maximum current to be 10A by adjusting the PWM wave. The magnitude of the voltage output by the terminals of the drive circuit 30 varies with the pwm wave duty cycle, with the output voltage being a direct proportional function of the duty cycle as the duty cycle is larger.
As shown in fig. 3, the oven includes a receiver 41, a temperature sensor 42, a cooling plate 43, a heating plate 44, a thermostatic metal case 45, a thermostatic outer case 46, and a rack 47. The constant temperature metal shell 45 includes the constant temperature metal lower casing 451 and the constant temperature metal upper casing 452, the constant temperature metal lower casing 451 is used for placing the receiver 41, the temperature sensor 42, the refrigerating piece 43 and the heating piece 44, the constant temperature metal upper casing 452 seals the lower casing 451, the constant temperature metal shell 45 becomes a rigid, the whole of close connection, the constant temperature metal casing 45 is peripherally covered by the constant temperature outer casing 46, the constant temperature outer casing 46 includes the constant temperature outer casing 461 and the constant temperature upper outer casing 462, the constant temperature outer casing is used for heat insulation, and the constant temperature outer casing 46 is locked through the support 47. The support includes lower carriage 471 and upper bracket 472, and upper bracket 472 adopts the aluminum alloy structure form, non-deformable, and lower carriage 471 adopts the sheet metal component, has both guaranteed the locking force of thermostated container, can prevent again that the thermostated container warp.
One end of the refrigerating sheet 43 is connected with the refrigerating sheet driving circuit 31, and the other end of the refrigerating sheet 43 is connected to the receiver 41; the heater chip 44 is connected to the heater chip driving circuit 32 at one end and to the receiver 41 at the other end. The refrigerating sheet 43 is a semiconductor refrigerator, and the heating sheet 44 is a ceramic heating sheet. An LM20 type temperature sensor 42 is further embedded in the receiver 41, the LM20 type temperature sensor 42 accurately measures the working environment temperature of the weather radar receiver 41, a semiconductor refrigerator and a ceramic heating sheet are adopted to rapidly control the temperature of the receiver, the working environment temperature of the receiver can be guaranteed to be within +/-2 ℃ of the set temperature all the time, therefore, the influence of temperature drift of the weather radar is eliminated, and the obtained result is stable and reliable.
The working principle of the preferred embodiment is as follows:
the temperature sensor 42 measures real-time temperature data of the weather radar receiver 41, and transmits the real-time temperature data to the input end 212 of the main control circuit through the AD acquisition 22, the main control circuit 21 feeds the real-time temperature data back to the upper computer 11 through the input end 212 of the main control circuit, the upper computer 11 compares the set temperature data with the real-time temperature data, and transmits an operation instruction to the input end 212 of the main control circuit through the FPGA Ethernet 12; the output end 211 of the main control circuit is connected to the driving circuit 30, and provides a driving control signal for the driving circuit 30, so that the driving circuit 30 starts a cooling mode or a heating mode, the driving circuit 30 generates a driving voltage through the driving control signal transmitted by the main control circuit 21, the semiconductor refrigerator and the ceramic heating sheet cool or heat the receiver according to the driving voltage provided by the driving circuit 30, and the main control circuit 21 transmits the real-time temperature data back to the upper computer 11 for real-time temperature display.
As shown in fig. 4, the process of comparing the set temperature data with the real-time temperature data by the upper computer 11 is as follows: if the real-time temperature value is lower than the set temperature value and the difference between the real-time temperature value and the set temperature value is greater than 15 ℃, the main control circuit 21 sends a driving control signal to enable the ceramic heating sheet to start heating work at a fixed voltage value, and the semiconductor refrigerator does not work; if the real-time temperature value is lower than the set temperature value, and the difference between the real-time temperature value and the set temperature value is greater than 2 ℃ and not greater than 15 ℃, the main control circuit 21 sends out a driving control signal to enable the ceramic heating sheet to be heated by the voltage value obtained by the heating pid algorithm, and the semiconductor refrigerator does not work; if the real-time temperature value is higher than the set temperature value and the difference between the real-time temperature value and the set temperature value is greater than 2 ℃ and not greater than 15 ℃, the main control circuit 21 sends a driving control signal to enable the semiconductor refrigerator to work with the voltage value obtained by the refrigeration pid algorithm, and the ceramic heating sheet does not work; if the real-time temperature value is higher than the set temperature value and the difference between the real-time temperature value and the set temperature value is larger than 15 ℃, the main control circuit 21 sends out a driving control signal to enable the semiconductor refrigerator to refrigerate with a fixed voltage value, and the ceramic heating sheet does not work. If the real-time temperature value is lower than the set temperature value and the difference between the real-time temperature value and the set temperature value is not larger than 2 ℃, or the real-time temperature value is higher than the set temperature value and the difference between the real-time temperature value and the set temperature value is not larger than 2 ℃, or the real-time temperature value is equal to the set temperature value, the current output state is kept unchanged.
Although the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the details of the embodiments, and various equivalent modifications can be made within the technical spirit of the present invention, and the scope of the present invention is also within the scope of the present invention.
Claims (7)
1. A constant temperature control device of a weather radar receiver is characterized in that: comprises a computer control device (10), a main control device (20), a drive circuit (30) and a constant temperature box (40);
the computer control device (10) comprises an upper computer (11) and an FPGA Ethernet (12);
the master control device (20) comprises a master control circuit (21) and an AD acquisition (22);
the driving circuit (30) comprises a refrigerating sheet driving circuit (31) and a heating sheet driving circuit (32);
the upper computer (11) is connected to the main control circuit (21) through the FPGA Ethernet (12);
the master control circuit (21) comprises a master control circuit output end (211), a master control circuit input end (212) and a master control circuit feedback end (213);
the feedback end (213) of the main control circuit is connected with an upper computer (11);
the output end (211) of the main control circuit is divided into two paths which are respectively connected to the refrigerating sheet driving circuit (31) and the heating sheet driving circuit (32);
the refrigerating sheet driving circuit (31) and the heating sheet driving circuit (32) are connected to the thermostat (40);
the incubator (40) comprises a receiver (41), a temperature sensor (42), a refrigerating sheet (43) and a heating sheet (44);
one end of the refrigerating sheet (43) is connected with the refrigerating sheet driving circuit (31), and the other end of the refrigerating sheet (43) is connected to the receiver (41); one end of the heating sheet (44) is connected with the heating sheet driving circuit (32), and the other end of the heating sheet is connected to a receiver (41);
a temperature sensor (42) is further embedded in the receiver (41), and the temperature sensor (42) is connected with the input end (212) of the main control circuit through AD acquisition (22).
2.A climate control device for a weather radar receiver, as claimed in claim 1, wherein: the driving circuit (30) adopts a pulse width modulation circuit mode, adjusts the output voltage between 0 and 15V by adjusting PWM waves, and the maximum current is 10A.
3. A climate control device for a weather radar receiver, as claimed in claim 1, wherein: the FPGA Ethernet (12) adopts XC7K325T model.
4. A climate control device for a weather radar receiver, as claimed in claim 1, wherein: the temperature sensor (42) for accurately measuring the ambient temperature of the receiver (41) is of the type LM 20.
5. A climate control device for a weather radar receiver, as claimed in claim 1, wherein: the refrigerating sheet (43) is a semiconductor refrigerator; the heating sheet (44) is a ceramic heating sheet.
6. A climate control device for a weather radar receiver, as claimed in claim 1, wherein: the incubator (40) further comprises a thermostatic metal housing (45) for providing rigid protection;
the constant-temperature metal shell (45) comprises a constant-temperature metal lower shell (451) used for placing the receiver (41), the temperature sensor (42), the refrigerating sheet (43) and the heating sheet (44), and a constant-temperature metal upper shell (452) used for sealing the constant-temperature metal lower shell (451).
7. A climate control device for a weather radar receiver, as claimed in claim 1, wherein: the constant temperature box (40) also comprises a constant temperature outer box body (46) which is covered on the periphery of the constant temperature metal shell (45) and is used for heat insulation and heat preservation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121998994.2U CN215494740U (en) | 2021-08-24 | 2021-08-24 | Constant temperature control device of weather radar receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121998994.2U CN215494740U (en) | 2021-08-24 | 2021-08-24 | Constant temperature control device of weather radar receiver |
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| Publication Number | Publication Date |
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| CN215494740U true CN215494740U (en) | 2022-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121998994.2U Active CN215494740U (en) | 2021-08-24 | 2021-08-24 | Constant temperature control device of weather radar receiver |
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| CN (1) | CN215494740U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114265448A (en) * | 2022-01-13 | 2022-04-01 | 广东亿嘉和科技有限公司 | Electronic component with constant surface temperature |
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2021
- 2021-08-24 CN CN202121998994.2U patent/CN215494740U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114265448A (en) * | 2022-01-13 | 2022-04-01 | 广东亿嘉和科技有限公司 | Electronic component with constant surface temperature |
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Address after: 211153 No.32 Changqing street, Jiangning Development Zone, Nanjing City, Jiangsu Province Patentee after: China Shipbuilding Pengli (Nanjing) Atmospheric and Ocean Information System Co.,Ltd. Address before: 211153 No.32 Changqing street, Jiangning Development Zone, Nanjing City, Jiangsu Province Patentee before: CSIC PRIDE (NANJING) ATMOSPHERE MARINE INFORMATION SYSTEM Co.,Ltd. |