CN110954221A - Temperature detection device - Google Patents
Temperature detection device Download PDFInfo
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- CN110954221A CN110954221A CN201911344302.XA CN201911344302A CN110954221A CN 110954221 A CN110954221 A CN 110954221A CN 201911344302 A CN201911344302 A CN 201911344302A CN 110954221 A CN110954221 A CN 110954221A
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- 238000001514 detection method Methods 0.000 title claims abstract description 49
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- 238000012360 testing method Methods 0.000 description 15
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- 230000006872 improvement Effects 0.000 description 9
- 150000003839 salts Chemical class 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 239000007921 spray Substances 0.000 description 6
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- 238000011156 evaluation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 230000007935 neutral effect Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 210000003625 skull Anatomy 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
- G01J5/025—Interfacing a pyrometer to an external device or network; User interface
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
- G01J5/04—Casings
- G01J5/041—Mountings in enclosures or in a particular environment
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Engineering & Computer Science (AREA)
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- Computer Networks & Wireless Communication (AREA)
- Radiation Pyrometers (AREA)
Abstract
The present invention provides a temperature detection device, comprising: a protective housing; the protection casing is internally provided with a circuit board installation shell and a circuit module arranged in the circuit board installation shell, a bottom plate of the circuit board installation shell forms a tapered supporting shell along the longitudinal direction of the circuit board installation shell, and the supporting shell is provided with a plurality of infrared detectors which are respectively in communication connection with the circuit module, so that the plurality of infrared detectors are controlled by the circuit module to respectively collect temperature data. The temperature detection device simplifies the structure of the whole device under the condition of realizing the simultaneous temperature detection of different temperature detection points, and is convenient to install and disassemble.
Description
Technical Field
The invention relates to the field of temperature detection, in particular to a temperature detection device.
Background
In various application fields, certain requirements are put on the corrosion resistance of parts, and a neutral salt spray test is a common detection method. The temperature is one of core parameters influencing the testing process, the distribution condition of the temperature in the space of the salt spray test box body directly influences the testing process, the testing result is further influenced, the evaluation on the corrosion performance of the product is finally influenced, and the testing result and the evaluation are directly influenced. The existing temperature detection device is also used in a neutral salt spray test, but the general structure is more complex, and the installation and the disassembly are inconvenient.
In view of the above, there is a need for an improved temperature detecting device in the prior art to solve the above problems.
Disclosure of Invention
The invention aims to provide a temperature detection device, which is used for simplifying the structure of the whole device under the condition of realizing simultaneous temperature detection of different temperature detection points and is convenient to mount and dismount.
To achieve the above object, the present invention is realized by:
the present invention provides a temperature detection device, including:
a protective housing;
the protection casing is internally provided with a circuit board installation shell and a circuit module arranged in the circuit board installation shell, the bottom plate of the circuit board installation shell is arranged along the longitudinal direction of the circuit board installation shell to form a tapered supporting shell, the supporting shell is provided with a plurality of infrared detectors which are respectively in communication connection with the circuit module, so that the circuit module controls the circuit module to be a plurality of infrared detectors to collect temperature data.
As a further improvement of the present invention, a bottom plate of the circuit board mounting case is formed with a connection through hole, and the infrared detector is connected to the circuit module through the connection through hole.
As a further improvement of the invention, a plurality of mounting holes are uniformly arranged on the side wall of the supporting shell along the axial direction of the supporting shell, and a plurality of infrared detectors are respectively and correspondingly mounted in the plurality of mounting holes.
As a further improvement of the present invention, the number of the infrared detectors is seven;
six mounting holes are uniformly arranged on the side wall of the supporting shell along the axis direction of the side wall, one mounting hole is arranged at the bottom of the supporting shell, six infrared detectors are respectively installed in the six mounting holes in the side wall of the supporting shell, and one infrared detector is installed in the mounting hole in the bottom of the supporting shell.
As a further improvement of the invention, the top of the protective casing is covered with a protective cover, and the circuit board mounting casing is fixedly connected with the protective cover.
As a further improvement of the present invention, the circuit module includes: the controller is in communication connection with the infrared detector, and the wireless transmitting and receiving device is in communication connection with the controller;
the wireless transceiver is used for receiving a control signal sent by a user side and sending the control signal to the controller;
the controller is used for controlling the infrared detector to collect temperature data based on the control signal and sending the temperature data to the user side through the wireless transmitting and receiving device.
As a further improvement of the present invention, the controller includes a data receiving end and a data transmitting end, and the data receiving end and the data transmitting end are respectively in communication connection with a signal receiving end and a signal transmitting end of the wireless transceiver.
As a further improvement of the present invention, the controller includes two data control terminals, and the two data control terminals are respectively in corresponding communication connection with the two level control terminals of the infrared detector.
As a further improvement of the invention, two level control ends of the infrared detector are respectively connected with a current-limiting resistor, and the two level control ends are respectively connected with a power supply through the current-limiting resistor.
As a further improvement of the invention, the controller is connected with a crystal oscillator circuit and a reset circuit;
the crystal oscillator circuit is composed of quartz crystal oscillators connected in parallel to two crystal oscillator ends of the controller and crystal oscillator capacitors respectively connected to the two crystal oscillator ends, wherein the second ends of the two crystal oscillator capacitors are both connected to a ground terminal, the first ends of the two crystal oscillator capacitors are both end parts of the two crystal oscillator capacitors connected with the quartz crystal oscillator, and the second ends are opposite to the first ends;
the reset circuit is composed of a capacitor connected between the reset end of the controller and the power supply and a resistor connected between the reset end of the controller and the grounding end.
The invention has the beneficial effects that:
the temperature detection device is in communication connection with the plurality of infrared detectors arranged on the supporting shell through the circuit module arranged in the circuit board mounting shell, so that the purpose that the circuit module controls the plurality of infrared detectors to collect temperature data at the same time is achieved. Therefore, the temperature detection device provided by the embodiment of the invention has the advantages of simple structure and convenience in installation and disassembly, and can detect the temperatures of a plurality of temperature detection points through a plurality of infrared detectors simultaneously so as to meet the national standard requirements. In addition, the fault probability of the temperature detection device can be reduced through the action of the protective shell, so that the stability of the temperature detection device is improved.
In addition, the temperature detection device controls the infrared detector to collect temperature data through the controller in the circuit module, and feeds the detected temperature data back to the user side through the wireless sending transceiver, so that the purpose of real-time monitoring of the temperature detection process by the user side can be realized, the recording procedure of the temperature detection point can be simplified, and the influence of the recording process on the temperature detection process can be reduced.
Drawings
FIG. 1 is a schematic structural view of a temperature detection device according to an embodiment of the present invention;
FIG. 2 is a schematic exploded view of the temperature sensing device of FIG. 1;
FIG. 3 is a block diagram showing a schematic structure of a temperature detection device;
FIG. 4 is a schematic circuit diagram of a controller in a circuit module according to one embodiment of the present invention;
FIG. 5 is a schematic circuit diagram of a wireless transceiver in a circuit module according to an embodiment of the invention;
FIG. 6 is a schematic circuit diagram of an infrared detector of one embodiment of the present invention;
fig. 7 is a schematic circuit diagram of a temperature detection device according to an embodiment of the present invention.
Detailed Description
The present invention is described in detail with reference to the embodiments shown in the drawings, but it should be understood that these embodiments are not intended to limit the present invention, and those skilled in the art should understand that functional, methodological, or structural equivalents or substitutions made by these embodiments are within the scope of the present invention.
The technical solutions provided by the embodiments of the present invention are described in detail below with reference to the accompanying drawings.
Please refer to fig. 1 to 2, which are schematic structural diagrams of the temperature detecting device of the present invention.
The temperature detection device of the embodiment of the invention comprises: a protective casing 10 a; the protection housing 10a is configured with a circuit board mounting shell 20 and a circuit module 30 configured in the circuit board mounting shell 20, a bottom plate 201 of the circuit board mounting shell 20 forms a tapered supporting shell 40 along a longitudinal direction of the circuit board mounting shell 20, and a plurality of infrared detectors 50 respectively connected with the circuit module 30 in a communication manner are mounted on the supporting shell 40, so as to control the plurality of infrared detectors 50 to respectively collect temperature data through the circuit module 30. The bottom plate 201 of the circuit board mounting case 20 is formed with a connection through-hole 21, and the infrared detector 50 is connected to the circuit module 30 through the connection through-hole 21.
Wherein, the top of the protective casing 10a is covered with a protective cover 10b, and the circuit board mounting case 20 is fixedly connected with the protective cover 10 b. The protective cover 10b is made of a material having corrosion resistance; the material (such as infrared special glass material) used for the protective shell 10a has infrared permeability and corrosion resistance. On the premise of ensuring that the infrared signal emitted by the infrared detector 50 in the protective casing 10a can penetrate through the protective casing 10a, the influence of the external corrosive environment on the infrared detector and other structures in the protective casing 10a, such as the circuit module 30, can be prevented by the sealed connection between the protective casing 10a and the protective cover 10 b.
The protective casing 10a is a spherical body having an opening 101, the circuit board mounting case 20 configured with the circuit module 30, and the supporting case 40 fixedly connected (or integrally connected) with the circuit board mounting case 20 and mounted with the infrared detector 50, can be mounted in the protective casing 10a from the opening 101, and is covered at the opening 101 of the protective casing 10a through the protective cover 10b to seal the protective casing 10a, so that each component configured in the protective casing 10a is not affected by the external testing environment, and the purpose of preventing the external corrosion environment from affecting the infrared detector and other structures in the protective casing 10a, such as the circuit module 30, is achieved.
The temperature detection device of the embodiment of the invention is in communication connection with the plurality of infrared detectors 50 installed on the supporting shell 40 through the circuit module 30 configured in the circuit board installation shell 20, so that the purpose that the circuit module 30 controls the plurality of infrared detectors 50 to collect temperature data at the same time is achieved. Therefore, the temperature detection device provided by the embodiment of the invention has a simple structure, is convenient to mount and dismount, and can detect the temperatures of a plurality of temperature detection points through a plurality of infrared detectors 50 so as to meet the requirements of the national standard GB/T10587-2006. In addition, the embodiment of the invention can reduce the failure probability of the temperature detection device through the functions of the protective shell 10a and the protective cover 10b, so as to improve the stability of the temperature detection device.
The temperature requirements of national standard GB/T10587-2006 (technical conditions of salt spray test box) are as follows: the test temperature and deviation are 35 ℃ +/-2 ℃, and the temperature fluctuation is not more than 1 ℃. The requirements for the temperature measurement process are: if the working volume of the salt fog box is not more than 2m3And 9 test points are required to be arranged according to requirements, and the test points are positioned near 8 vertexes and the volume center of a cuboid. If the working volume of the salt fog box is 2-10 m3In the process, 15 test points need to be arranged, and the specific arrangement mode refers to national standard GB/T10587-2006. When the temperature of the central point reaches the specified value and is stable for 2 hours, the temperature is recorded for every measurement point every 1min, and each measurement point needs to be recorded for 30 times.
Note that, the side wall of the support case 40 is uniformly provided with a plurality of mounting holes 41a along the axial direction thereof, and the plurality of infrared detectors 50 are respectively mounted in the plurality of mounting holes 41a correspondingly. Specifically, the number of the infrared detectors 50 may be set. Six mounting holes 41a are uniformly arranged in the side wall of the support case 40 along the axial direction thereof, one mounting hole 41b is arranged in the bottom 401 of the support case 40, six infrared detectors 50 are respectively mounted in the six mounting holes in the side wall of the support case 40, and one infrared detector 50 is mounted in the mounting hole 41b in the bottom 401 of the support case 40. The side wall of the supporting shell 40 may be formed by splicing six trapezoidal wall surfaces, a mounting hole 41a is formed in the center of each trapezoidal wall surface to mount the infrared detector 50 in each mounting hole 41a, and a mounting hole 41b is formed in the bottom 401 surrounded by the six trapezoidal wall surfaces to mount the infrared detector 50. In this way, when the temperature detection device is placed in an environment to be detected, the temperatures of the seven temperature detection points can be simultaneously detected by the seven infrared detectors due to the arrangement of the arrangement structure. Therefore, the requirement of national standard GB/T10587-2006 on temperature detection can be met.
Wherein, the number of mounting holes can be set according to specific actual requirements to confirm the number of the infrared detectors 50 to be mounted, thereby satisfying the requirement for the number of temperature detection points in the experiment.
In the above embodiment, as described with reference to fig. 3 to 6, the circuit module 30 includes: a controller 60 communicatively coupled to the infrared detector 50, and a wireless transceiver 70 communicatively coupled to the controller 60. The wireless transceiver 70 is configured to receive a control signal sent by the user terminal 80, and send the control signal to the controller 60; the controller 60 is configured to control the infrared detector 50 to collect temperature data based on the control signal, and transmit the temperature data to the user terminal 80 through the wireless transceiver 70.
The temperature detection device of the embodiment of the invention controls the infrared detector 50 to collect the temperature data through the controller 60 in the circuit module 30, and feeds the detected temperature data back to the user end 80 through the wireless transceiver 70, thereby not only realizing the purpose of real-time monitoring of the temperature detection process by the user end, but also simplifying the recording procedure of the temperature detection points, and reducing the influence of the recording process on the temperature detection process. Moreover, the controller 60 and the wireless transceiver 70 in the circuit module 30 are designed in a modular manner, so that when the circuit module 30 fails, each module in the circuit module 30 can be detected separately, thereby effectively determining the failure point existing in the circuit module 30 and facilitating the replacement of the controller 60 or the wireless transceiver 70 or the infrared detector 50.
The controller 60 is a single chip AT89C51, and the WIRELESS transceiver 70 is WIRELESS. The controller 60 includes a data receiving terminal P3.0/RXD (pin 10) and a data transmitting terminal P3.1/TXD (pin 11), and the data receiving terminal P3.0/RXD (pin 10) and the data transmitting terminal P3.1/TXD (pin 11) are respectively in communication connection with the signal receiving terminal RXD (pin 5) and the signal transmitting terminal TXD (pin 4) of the wireless transceiver 70. The controller 60 includes a data control terminal P1.3 (pin 4) and a data control terminal P1.4 (pin 5), the data control terminal P1.3 (pin 4) is in communication connection with the level control terminal SDA (pin 1) of the infrared detector 50, and the data control terminal P1.4 (pin 5) is in communication connection with the level control terminal SLC (pin 2) of the infrared detector 50. A current limiting resistor R2 is connected to a level control end SDA (pin 1) of the infrared detector 50 so as to be connected with a power supply (5V) through a current limiting resistor R2; the level control terminal SLC (pin 2) is connected to a current limiting resistor R3 to be connected to a power supply (5V) through a current limiting resistor R3. The resistance values of the current limiting resistor R2 and the current limiting resistor R3 can be both 10k omega. In addition, the pins 5, 6, and 7 of the infrared detector 50 are connected to the pins 1, 2, and 3 of the controller 60, respectively.
The controller 60 is connected to a crystal oscillation circuit 61 and a reset circuit 62. The crystal oscillator circuit 61 is composed of a crystal oscillator X1 (crystal oscillation frequency is 12MHz) connected in parallel to the crystal oscillator terminal XTAL1 (pin 19) and the crystal oscillator terminal XTAL2 (pin 18) of the controller 60, and crystal oscillator capacitors (crystal oscillator capacitor C1 and crystal oscillator capacitor C2) connected to both ends of the crystal oscillator X1, respectively. The crystal oscillator capacitor C1 and the crystal oscillator capacitor C2 may have a capacitance of 22 pf. The second ends of the two crystal oscillator capacitors are connected to the ground terminal, the first ends of the two crystal oscillator capacitors are the end parts of the two crystal oscillator capacitors connected with the quartz crystal oscillator X1, and the second ends are opposite to the first ends. The reset circuit 62 is constituted by a capacitor C3(10uf) connected between the reset terminal RST (pin 9) of the controller 60 and the power supply (5V), and a resistor R1(10k Ω) connected between the reset terminal RST (pin 9) of the controller 60 and the ground.
As shown in FIG. 7, seven infrared detectors 50 (i.e., IR 1-IR 7) are used to communicate with the data receiving terminal P3.0/RXD (pin 10) and the data transmitting terminal P3.1/TXD (pin 11) of the controller 60, respectively. And, seven infrared detectors 50 are respectively installed in six installation holes 41a of the side wall of the support case 40 and one installation hole 41b of the bottom 401 of the support case 40, so as to respectively detect temperature data of a specified position in an environment to be measured (such as a salt spray test chamber) through the seven infrared detectors 50.
It should be understood that the user may control the infrared detector 50 through the user terminal 80. After receiving the control signal (such as the signal of the acquisition frequency, the start time, the end time, and the like) sent by the user terminal 80 through the wireless transceiver 70, the temperature detection apparatus according to the embodiment of the present invention sends the control signal to the controller 60 (through the UART protocol), and then the controller 60 sends the control signal to the infrared detector 50 after analyzing the control signal (through the I2C protocol) to control the infrared detector 50 to acquire the temperature data at the temperature detection point and send the detected temperature data to the controller 60, and the controller 60 sends the skull UART protocol after processing the received temperature data to the wireless transceiver 70 to feed back the temperature data to the user terminal 80 through the wireless transceiver 70. Therefore, the purpose of real-time monitoring of the user side 80 on the temperature detection process can be achieved through a wireless data transmission mode, and the recording procedure of the temperature detection points can be simplified, so that the influence of the recording process on the temperature detection process is reduced.
The temperature detection device provided by the embodiment of the invention can be used for application scenes such as detection in a neutral salt spray test process, evaluation and analysis of a detection structure and the like.
The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. A temperature detection device, comprising:
a protective housing;
the protection casing is internally provided with a circuit board installation shell and a circuit module arranged in the circuit board installation shell, the bottom plate of the circuit board installation shell is arranged along the longitudinal direction of the circuit board installation shell to form a tapered supporting shell, the supporting shell is provided with a plurality of infrared detectors which are respectively connected with the circuit module in a communication manner, so that the temperature data are respectively collected by the infrared detectors through the circuit module.
2. The temperature detecting apparatus according to claim 1,
and a connecting through hole is formed on the bottom plate of the circuit board mounting shell, and the infrared detector is connected with the circuit module through the connecting through hole.
3. The temperature detecting apparatus according to claim 1,
the lateral wall of support shell has evenly arranged a plurality of mounting holes along its axis direction, and a plurality of infrared detector correspond respectively and install in a plurality of mounting holes.
4. The temperature detecting apparatus according to claim 3,
the number of the infrared detectors is seven;
six mounting holes are uniformly arranged on the side wall of the supporting shell along the axis direction of the side wall, one mounting hole is arranged at the bottom of the supporting shell, six infrared detectors are respectively installed in the six mounting holes in the side wall of the supporting shell, and one infrared detector is installed in the mounting hole in the bottom of the supporting shell.
5. The temperature detecting apparatus according to any one of claims 1 to 4,
the top of protective housing covers there is the protective cover, the circuit board installation shell with protective cover fixed connection.
6. The temperature sensing device of claim 1, wherein the circuit module comprises: the controller is in communication connection with the infrared detector, and the wireless transmitting and receiving device is in communication connection with the controller;
the wireless transceiver is used for receiving a control signal sent by a user side and sending the control signal to the controller;
the controller is used for controlling the infrared detector to collect temperature data based on the control signal and sending the temperature data to the user side through the wireless transmitting and receiving device.
7. The temperature detecting apparatus according to claim 6,
the controller comprises a data receiving end and a data sending end, and the data receiving end and the data sending end are respectively in communication connection with a signal receiving end and a signal sending end of the wireless transceiver.
8. The temperature detecting apparatus according to claim 6,
the controller comprises two data control ends, and the two data control ends are respectively in corresponding communication connection with the two level control ends of the infrared detector.
9. The temperature detecting apparatus according to claim 8,
two level control ends of the infrared detector are respectively connected with a current-limiting resistor, and the two level control ends are respectively connected with a power supply through the current-limiting resistor.
10. The temperature detecting apparatus according to any one of claims 6 to 9,
the controller is connected with a crystal oscillator circuit and a reset circuit;
the crystal oscillator circuit is composed of quartz crystal oscillators connected in parallel to two crystal oscillator ends of the controller and crystal oscillator capacitors respectively connected to the two crystal oscillator ends, wherein the second ends of the two crystal oscillator capacitors are both connected to a ground terminal, the first ends of the two crystal oscillator capacitors are both end parts of the two crystal oscillator capacitors connected with the quartz crystal oscillator, and the second ends are opposite to the first ends;
the reset circuit is composed of a capacitor connected between the reset end of the controller and the power supply and a resistor connected between the reset end of the controller and the grounding end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911344302.XA CN110954221A (en) | 2019-12-24 | 2019-12-24 | Temperature detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911344302.XA CN110954221A (en) | 2019-12-24 | 2019-12-24 | Temperature detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110954221A true CN110954221A (en) | 2020-04-03 |
Family
ID=69983747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911344302.XA Withdrawn CN110954221A (en) | 2019-12-24 | 2019-12-24 | Temperature detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110954221A (en) |
-
2019
- 2019-12-24 CN CN201911344302.XA patent/CN110954221A/en not_active Withdrawn
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Application publication date: 20200403 |