CN114812827A - Infrared temperature measuring device for train electrical cabinet - Google Patents
Infrared temperature measuring device for train electrical cabinet Download PDFInfo
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- CN114812827A CN114812827A CN202210756799.1A CN202210756799A CN114812827A CN 114812827 A CN114812827 A CN 114812827A CN 202210756799 A CN202210756799 A CN 202210756799A CN 114812827 A CN114812827 A CN 114812827A
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- electrical cabinet
- infrared
- temperature
- measuring device
- train electrical
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- 238000009529 body temperature measurement Methods 0.000 claims abstract description 24
- 239000000523 sample Substances 0.000 claims description 17
- 230000008859 change Effects 0.000 claims description 4
- 239000011159 matrix material Substances 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 4
- 238000004364 calculation method Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 7
- 230000005855 radiation Effects 0.000 abstract description 7
- 238000009434 installation Methods 0.000 description 8
- 238000004458 analytical method Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 210000003437 trachea 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
- G01J5/0096—Radiation pyrometry, e.g. infrared or optical thermometry for measuring wires, electrical contacts or electronic systems
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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
- G01J5/05—Means for preventing contamination of the components of the optical system; Means for preventing obstruction of the radiation path
- G01J5/051—Means for preventing contamination of the components of the optical system; Means for preventing obstruction of the radiation path using a gas purge
-
- 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
- G01J5/07—Arrangements for adjusting the solid angle of collected radiation, e.g. adjusting or orienting field of view, tracking position or encoding angular position
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Radiation Pyrometers (AREA)
Abstract
The invention belongs to the technical field of infrared temperature measurement, and provides an infrared temperature measurement device for a train electrical cabinet, which comprises a shell, wherein a PCB assembly is arranged in the shell, the PCB assembly comprises an infrared heat sensor and a circuit board electrically connected with the infrared heat sensor, and the infrared heat sensor is configured to collect temperature information of components in the train electrical cabinet; the circuit board is provided with an infrared temperature measurement system, and the infrared temperature measurement system is configured to monitor the temperature of each component in the train electrical cabinet. The invention has the advantages that through the infrared temperature measuring device arranged in the train electrical cabinet, the temperature detection is realized by utilizing the thermal infrared radiation energy emitted by an object, the temperature of a busbar, a switch contact and other parts in the electrical cabinet can be monitored, when the temperature changes rapidly or the highest temperature exceeds a certain set value, an alarm signal can be sent out, the data support is provided for the driving decision, and the driving safety is further ensured.
Description
Technical Field
The invention relates to the technical field of infrared temperature measurement, in particular to an infrared temperature measurement device for a train electrical cabinet.
Background
With the development of scientific technology, the traditional contact type temperature measurement mode can not completely meet the requirements of non-contact and remote temperature measurement in the field of rail transit, and temperature measurement can be carried out under certain special conditions such as high temperature, strong corrosion and strong electromagnetic field or at a longer distance. The infrared temperature measurement technology utilizes thermal infrared radiation energy emitted by an object to realize temperature detection, is a non-contact temperature measurement technology, has been developed for years in the measurement field, and is widely applied to the fields of the power industry, the aerospace and the like but is less applied to high-speed trains based on the characteristics of short temperature measurement response time, near and far measurement distance, wide temperature measurement range and the like.
With the gradual attention to train preventive maintenance in rail transit, a host factory provides measurement and monitoring of the temperature of key nodes such as train busbars, switch contacts and the like in the next generation of electric cabinets of motor train units, and because the monitoring points are complex in wiring and more in distribution, the traditional contact type temperature measuring device is limited by installation space and cannot meet the requirements of surface temperature measurement. The traditional infrared temperature measuring device applied to the rail traffic field has the following defects:
1) the volume is large, the structure is complex, the internal space of the train electrical cabinet is small, and the installation problem is difficult to overcome;
2) the price is high, and the wide-range application is difficult;
3) the product probe body is easily shielded by dust in the using process, and the detection precision is reduced;
4) the probe body is higher than the product shell, and the probe body is easy to damage when applied in a complex environment;
5) the infrared temperature measuring device usually only has the highest temperature output and the lowest temperature output, and has no more information such as temperature change rate, and the host factory pays more attention to the temperature change rate, synthesizes data for analysis, and provides a corresponding analysis result.
Therefore, a low-cost electrical cabinet infrared temperature measuring device is urgently needed to be developed, can be used for temperature monitoring of key nodes, and has great significance.
Disclosure of Invention
The invention aims to provide an infrared temperature measuring device for a train electrical cabinet, which is used for solving the problems.
In order to achieve the purpose, the invention adopts the technical scheme that:
an infrared temperature measuring device for a train electrical cabinet comprises a shell, wherein a PCB assembly is arranged in the shell, the PCB assembly comprises an infrared heat sensor and a circuit board electrically connected with the infrared heat sensor, and the infrared heat sensor is configured to collect temperature information of components in the train electrical cabinet;
the circuit board is provided with an infrared temperature measurement system, and the infrared temperature measurement system is configured to monitor the temperature of each component in the train electrical cabinet;
the infrared temperature measurement system includes:
an ambient temperature chip configured to collect real-time ambient temperature information;
and the control chip is configured to receive the temperature information and the real-time environment temperature information acquired by the infrared heat sensor, and send the real-time temperature information of each component in the train electrical cabinet to a superior control system for display after processing and calculation.
Further, the control chip is configured to send the real-time temperature information of each component to the upper-level control system in a dot matrix form to display the temperature distribution condition.
Further, the control chip is configured to analyze the temperature variation trend of each component in the electrical cabinet through a preset algorithm to obtain the real-time working state of the electrical cabinet according to the obtained real-time temperature information.
Further, the control chip is configured to send a temperature overrun alarm signal to the upper-level control system when the obtained real-time temperature information exceeds a preset threshold value.
Furthermore, a round hole is formed in the bottom of the shell, and a probe of the infrared heat sensor extends to the outside of the shell through the round hole.
Furthermore, the device comprises an upper cover which is hermetically connected with the shell, wherein the upper cover is provided with two first fixing holes, and the device is fixedly connected in the train electrical cabinet through the first fixing holes.
Furthermore, the device comprises an installation support, wherein a second fixing hole and a sliding groove are formed in the installation support, the second fixing hole is connected with one of the first fixing holes, and the other first fixing hole is connected with the sliding groove in a sliding mode, so that the device can rotate relative to the installation support.
Further, a mounting hole is formed in the bottom of the mounting bracket, and the mounting bracket is fixedly connected with the train electrical cabinet through the mounting hole.
Further, the infrared heat sensor comprises an air pipe and an air pipe valve connected with the air pipe, wherein the air pipe valve can blow air to the infrared heat sensor probe by signals of the control chip.
Compared with the prior art, the invention at least comprises the following beneficial effects:
(1) according to the invention, through the infrared temperature measuring device arranged in the train electrical cabinet, the temperature detection is realized by utilizing the thermal infrared radiation energy emitted by an object, the temperature of a busbar, a switch contact and other parts in the electrical cabinet can be monitored, and when the temperature changes rapidly or the highest temperature exceeds a certain set value, an alarm signal can be sent out, so that data support is provided for driving decision, and the driving safety is further ensured.
(2) The infrared detection device can be directly installed in the electrical cabinet and can also be matched with the installation support to carry out angle adjustment, and a plurality of objects to be detected are arranged in the field angle of the infrared probe through the angle of the adjustment device.
(3) Through setting up the trachea to regularly blow through control chip send signal to sensor probe position, blow and can solve the problem that the camera lens is sheltered from to the probe dust in long-term use.
Drawings
FIG. 1 is a schematic structural diagram of an infrared temperature measuring device in an embodiment of the present invention;
FIG. 2 is a front view of a mounting bracket in an embodiment of the invention;
FIG. 3 is a side view of a mounting bracket in an embodiment of the invention;
FIG. 4 is a top view of a mounting bracket in an embodiment of the invention;
FIG. 5 is a schematic diagram of an infrared temperature measurement system in an embodiment of the invention;
fig. 6 is a schematic diagram of a display interface of real-time temperature information according to an embodiment of the present invention.
Detailed Description
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
Moreover, descriptions of the present invention as relating to "first," "second," "a," etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating a number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The following are specific embodiments of the present invention, and the technical solutions of the present invention will be further described with reference to the drawings, but the present invention is not limited to these embodiments.
As shown in fig. 1 to 6, the invention provides an infrared temperature measuring device for a train electrical cabinet, which comprises a shell 1 and an upper cover 2 hermetically connected with the shell, wherein the shell and the upper cover are both made of glass fiber reinforced epoxy resin and are processed in an injection molding mode, and after the processing, heat treatment is required to be carried out to release stress.
A PCB assembly is arranged in the shell 1 and comprises an infrared heat sensor 4 and a circuit board 5 electrically connected with the infrared heat sensor, and the infrared heat sensor 4 is configured to collect temperature information of components in an electric cabinet of a train.
The PCB assembly also comprises a connector 7 electrically connected with the circuit board 5, and the connector adopts a multi-core rectangular socket, so that the requirement of the PCB assembly and a superior control system for data transmission can be met. The infrared heat sensor 4 and the connector 7 are fixed to the circuit board 5 by soldering. And a proper amount of glue is uniformly coated on higher devices in the PCB component 3 for enhancing the connection reliability.
The whole body of the shell 1 adopts a sinking type structure, the bottom of the shell is provided with a round hole 6 for positioning the probe of the infrared heat sensor 4, and the probe can extend to the outside of the shell 1 through the round hole 6 and be used for fully receiving the infrared radiation energy emitted by an object. The bottom of the shell 1 is provided with steps all around, and the steps are used for fixing a PCB assembly on one hand, and the probes of the infrared heat sensor 4 are limited on the other hand, so that the probes are ensured to be lower than the outermost side of the shell 1, meanwhile, the second steps in the shell 1 are slightly lower than the upper surface of the shell 1, the upper cover 2 is convenient to assemble, and the shell 1 is mainly used for fixing the PCB assembly.
The upper cover 2 is provided with two first fixing holes 21, and the infrared temperature measuring device can be fixedly connected in the train electrical cabinet through the first fixing holes.
The invention also adopts the screw component 3 to fix the PCB component, and is provided with the elastic cushion flat cushion, the upper cover 2 is fastened by a plurality of screws, and a proper amount of thread glue is required to be smeared when all threads of the whole infrared temperature measuring device are fastened, so that the threads are prevented from loosening. The casing 1 and the upper cover 2 obtained in this way are low in production cost as a whole and can be mass-produced.
In addition, the infrared temperature measuring device is provided with an air pipe (not shown in the figure), the air pipe is fixed by a ribbon and the like, an air pipe valve connected with the air pipe can blow air to the infrared heat sensor probe by the signal of the control chip, and the problem that dust blocks a lens in the long-term use process of the probe body can be solved by blowing air because the environment in the electric cabinet is dry.
As shown in fig. 2 to 4, the infrared temperature measuring device further includes a mounting bracket 8, the mounting bracket 8 is obtained by bending a metal plate, two mounting holes 9 are formed in the bottom of the mounting bracket, two screws can be used for fixing during mounting, and an elastic cushion flat cushion is provided to fix the mounting bracket 8 on the mounting surface of the train electrical cabinet.
Be equipped with second fixed orifices 10 and spout 11 on the installing support 8, second fixed orifices 10 is connected with one of them first fixed orifices 21, and another first fixed orifices 21 and spout 11 sliding connection through the position of adjusting screw in spout 11 for thereby the device can rotate relative installing support 8 and carry out temperature measuring device's angular adjustment, and the temperature measuring device treat that the angle is confirmed the back, screw up the screw, make temperature measuring device relative installing support 8 fixed. The infrared temperature measuring device is adjustable in installation angle and can be adapted according to the distance of an object to be measured and the installation environment.
As shown in fig. 5, an infrared temperature measurement system is disposed on the circuit board 5, and the infrared temperature measurement system is configured to monitor the temperature of each component in the train electrical cabinet. The infrared temperature measurement system comprises a power module, a communication module, a control chip and an environment temperature chip.
The superior control system is used for supplying power to the temperature measuring device on one hand, and feeding back temperature information output by the device to the driver platform in real time on the other hand, and can send out an alarm signal when the temperature changes sharply or the highest temperature exceeds a certain set value, so as to provide data support for driving decision and further ensure the driving safety.
The environment temperature chip is configured to collect real-time environment temperature information. The control chip is configured to receive the temperature information and the real-time environment temperature information acquired by the infrared heat sensor, and send the real-time temperature information of each component in the train electrical cabinet to a superior control system for display after processing and calculation.
The infrared temperature measuring device realizes temperature detection by utilizing thermal infrared radiation energy emitted by an object, and can monitor the temperature of multiple points such as a busbar, a switch contact and the like. The infrared heat sensor obtains the thermal infrared radiation energy of a probe receiving a target object, and transmits information to the control chip through the operational amplifier, the digital-to-analog converter and other devices, and the control chip compensates the measured temperature value according to the real-time environment data obtained by the environment temperature chip. And finally, the real-time temperature information is sent to a superior control system in a RS485 bus mode through a communication mode, so that safety monitoring data are provided for the healthy and reliable running of the train.
The control chip also has the functions of temperature distribution measurement, temperature trend analysis, temperature overrun alarm and the like. First, the control chip can be configured to send real-time temperature information of each component to the upper control system in a dot matrix form for displaying the temperature distribution condition. After the sensor is electrified, the infrared temperature measuring sensor can be used for measuring the temperature distribution of the surface of a measured object, transmitting data to a superior control system for image visual display, and displaying the data in a dot matrix form. As shown in fig. 6, the color can be distinguished according to different display temperatures, and the visual display is convenient for use and reading of temperature data.
Secondly, the control chip is configured to analyze the temperature change trend of each component in the electrical cabinet through a preset algorithm according to the obtained real-time temperature information to obtain the real-time working state of the electrical cabinet. For example, the temperature rises sharply, and through analysis of a built-in algorithm, whether the electric cabinet has the phenomena of overlarge load or fire and the like at present provides data support for driving decision, so that the driving safety is further ensured.
In addition, the control chip can be configured to send a temperature overrun alarm signal to an upper-level control system when the obtained real-time temperature information exceeds a preset threshold value, so that the driving safety is further ensured.
According to the invention, through the infrared temperature measuring device arranged in the train electrical cabinet, the temperature detection is realized by utilizing the thermal infrared radiation energy emitted by an object, the temperature of a busbar, a switch contact and other parts in the electrical cabinet can be monitored, and when the temperature changes rapidly or the highest temperature exceeds a certain set value, an alarm signal can be sent out, so that data support is provided for driving decision, and the driving safety is further ensured.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (9)
1. The train electrical cabinet infrared temperature measuring device is characterized by comprising a shell, wherein a PCB assembly is arranged in the shell, the PCB assembly comprises an infrared heat sensor and a circuit board electrically connected with the infrared heat sensor, and the infrared heat sensor is configured to acquire temperature information of components in a train electrical cabinet;
the circuit board is provided with an infrared temperature measurement system, and the infrared temperature measurement system is configured to monitor the temperature of each component in the train electrical cabinet;
the infrared temperature measurement system includes:
an ambient temperature chip configured to collect real-time ambient temperature information;
and the control chip is configured to receive the temperature information and the real-time environment temperature information acquired by the infrared heat sensor, and send the real-time temperature information of each component in the train electrical cabinet to a superior control system for display after processing and calculation.
2. The infrared temperature measuring device for the train electrical cabinet according to claim 1, wherein the control chip is configured to send real-time temperature information of each component to a superior control system in a dot matrix form to display temperature distribution.
3. The infrared temperature measuring device for the train electrical cabinet according to claim 1, wherein the control chip is configured to analyze the obtained real-time temperature information through a preset algorithm on the temperature change trend of each component in the electrical cabinet to obtain the real-time working state of the electrical cabinet.
4. The infrared temperature measuring device for the train electrical cabinet according to claim 1, wherein the control chip is configured to send a temperature overrun alarm signal to an upper-level control system when the obtained real-time temperature information exceeds a preset threshold.
5. The infrared temperature measuring device for the train electrical cabinet according to claim 1, wherein a round hole is formed in the bottom of the housing, and a probe of the infrared heat sensor extends to the outside of the housing through the round hole.
6. The infrared temperature measuring device for the train electrical cabinet according to claim 1, comprising an upper cover hermetically connected with the housing, wherein the upper cover is provided with two first fixing holes, and the device is fixedly connected in the train electrical cabinet through the first fixing holes.
7. The infrared temperature measuring device for the train electrical cabinet according to claim 6, comprising a mounting bracket, wherein a second fixing hole and a sliding groove are formed in the mounting bracket, the second fixing hole is connected with one of the first fixing holes, and the other first fixing hole is slidably connected with the sliding groove, so that the device can rotate relative to the mounting bracket.
8. The infrared temperature measuring device for the train electrical cabinet according to claim 7, wherein a mounting hole is formed in the bottom of the mounting bracket, and the mounting bracket is fixedly connected with the train electrical cabinet through the mounting hole.
9. The train electrical cabinet infrared temperature measuring device according to claim 5, comprising an air pipe and an air pipe valve connected with the air pipe, wherein the air pipe valve can blow air to the infrared heat sensor probe by a signal of the control chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210756799.1A CN114812827A (en) | 2022-06-30 | 2022-06-30 | Infrared temperature measuring device for train electrical cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210756799.1A CN114812827A (en) | 2022-06-30 | 2022-06-30 | Infrared temperature measuring device for train electrical cabinet |
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| Publication Number | Publication Date |
|---|---|
| CN114812827A true CN114812827A (en) | 2022-07-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210756799.1A Pending CN114812827A (en) | 2022-06-30 | 2022-06-30 | Infrared temperature measuring device for train electrical cabinet |
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| Country | Link |
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| CN (1) | CN114812827A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202041292U (en) * | 2011-04-27 | 2011-11-16 | 济南普赛通信技术有限公司 | Dust-removal waterproof quick remote infrared sensor |
| CN205316728U (en) * | 2016-01-13 | 2016-06-15 | 江苏建筑职业技术学院 | Cushion cap formula solar collector angle support is adjusted in control by temperature change |
| CN209745407U (en) * | 2019-02-19 | 2019-12-06 | 广东电网有限责任公司 | Non-contact temperature measuring device |
-
2022
- 2022-06-30 CN CN202210756799.1A patent/CN114812827A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202041292U (en) * | 2011-04-27 | 2011-11-16 | 济南普赛通信技术有限公司 | Dust-removal waterproof quick remote infrared sensor |
| CN205316728U (en) * | 2016-01-13 | 2016-06-15 | 江苏建筑职业技术学院 | Cushion cap formula solar collector angle support is adjusted in control by temperature change |
| CN209745407U (en) * | 2019-02-19 | 2019-12-06 | 广东电网有限责任公司 | Non-contact temperature measuring device |
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Application publication date: 20220729 |
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