CN112432718A - Engine piston temperature real-time detection system - Google Patents
Engine piston temperature real-time detection system Download PDFInfo
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- CN112432718A CN112432718A CN202011076352.7A CN202011076352A CN112432718A CN 112432718 A CN112432718 A CN 112432718A CN 202011076352 A CN202011076352 A CN 202011076352A CN 112432718 A CN112432718 A CN 112432718A
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- temperature
- remote sensing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
- G01K13/04—Thermometers specially adapted for specific purposes for measuring temperature of moving solid bodies
- G01K13/06—Thermometers specially adapted for specific purposes for measuring temperature of moving solid bodies in linear movement
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K2205/00—Application of thermometers in motors, e.g. of a vehicle
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K2219/00—Thermometers with dedicated analog to digital converters
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention relates to a real-time detection system for the temperature of an engine piston, which mainly comprises the following components: a high temperature sensor module and a wireless remote sensing/transmission module. The high-temperature sensor and the engine piston are linked together in a matching structure, the high-temperature sensor meets the requirements of high rotating speed real-time performance, high temperature and high stability on real-time performance, and the high-temperature sensor transmits acquired data to the wireless remote sensing/transmission module in real time. The wireless remote sensing/transmission module is used for a remote sensing principle, determines the technical model selection of wireless remote sensing according to transmission distance, frequency and consistency, and relates to coil materials, dimensions and circuit interference prevention. The invention is optimized by long-term and large-volume data tests and matched with CNC with high precision and a production process. The real-time detection system for the temperature of the engine piston can be used for collecting and analyzing the temperature distribution of the piston in high-speed motion in real time.
Description
Technical Field
The invention belongs to the technical field of engines, and particularly relates to a real-time detection system for the temperature of an engine piston.
Background
The reliability of the piston, which is one of the key parts of the engine, almost determines the reliability level of the whole engine. In order to improve the reliability of the whole engine, comprehensive tests, calculation, theoretical research and the like are carried out on the heat load of the piston. In order to measure the temperature field of the piston during movement, a measuring system is needed which can detect the temperature of the engine piston in real time.
At present, the piston temperature is usually detected by adopting a hardness plug for temperature measurement, the technology cannot monitor the piston temperature in real time, only can acquire the highest temperature in the working process of the piston, and cannot acquire the temperature distribution of the piston during movement.
The wireless remote sensing technology can meet the requirement of measuring the temperature field of the piston in the working process, and wireless transmission of data is realized. The key difficult problems of the existing telemetering technology of the engine piston temperature are as follows: the research and development and the model selection of the high-temperature sensor have hard requirements on the size, high rotating speed real-time property, high temperature and high stability of the sensor in the engine piston temperature remote measuring technology; coil material selection, stability of data transmission, anti-interference circuit design and the like in wireless remote sensing; the installation problem of the remote sensing equipment, the stability of the equipment transmission data under the conditions of high temperature and high rotating speed.
Disclosure of Invention
The object of the present invention is to solve at least one of the problems of the prior art mentioned above, and the object is achieved by the following technical solutions:
the utility model provides an engine piston temperature real-time detection system which characterized in that: comprises that
A high-temperature sensor module: the system is arranged at the position of an engine piston, measures the internal temperature of the engine piston in real time in the running process of the engine, and sends measured temperature data to the wireless remote sensing/transmission module;
wireless remote sensing/transmission module: and receiving the data sent by the high-temperature sensor module, and sending the data to a receiving end for real-time data analysis.
In the above real-time engine piston temperature detection system, the wireless remote sensing/transmission module comprises a remote sensing unit and a data transmission unit connected with the remote sensing unit.
In the real-time detection system for the temperature of the engine piston, the remote sensing unit is divided into a stator part and a rotor part;
the stator part is fixedly arranged on the cylinder wall and is used for receiving and amplifying an electric signal; the stator portion specifically includes:
a stator portion amplifier: the sensor is used for amplifying the electric signal transmitted by the sensor, compensating the attenuation of the electric signal and playing a role in reverse isolation to a certain extent;
power supply connected to the stator portion amplifier simultaneously: for supplying power to the individual modules
A/D conversion modulator: the processor is used for converting the analog signal into a digital signal for processing by the processor;
stator portion logic: for implementing part of internal logic operations
The rotor part is a receiving end, is fixedly arranged in the piston and moves along with the piston; the rotor portion specifically includes:
rotor part amplifier: for amplifying signals, compensating for signal attenuation
And the radio frequency generator is simultaneously connected with the rotor part amplifier: the radio frequency generator is used for generating electric signals towards the sky and used for wireless transmission;
D/A converter: for converting digital signals into analogue signals
Rotor portion logic unit: for implementing part of internal logic operations
After the telemetering function is satisfied between the stator and the rotor, engine equipment is monitored by using a telemetering principle; (the telemetering principle: measuring instruments are various sensors which measure temperature, pressure, etc. first, and these measured signals are analog signals (for example: high temperature, high signal voltage, low temperature, low signal voltage), and these signals cannot be directly sent back to the ground, because they are subjected to various interferences (for example: thunder and lightning, ionosphere, etc.) like radio signals, and must be converted into digital signals (1 or 0) before they can be transmitted back to the ground by radio technology, and after the digital signals are received by ground, the digital signals are converted into data (analog signals) by computer technology, and displayed on the screen, so that the remote radio measurement (telemetering) can be implemented;)
The rotor part amplifier of the rotor part is connected with the data transmission unit, and the data transmission unit performs data interaction with the computer through a communication protocol.
In the engine piston temperature real-time detection system, the stator part amplifier of the stator part is connected with the engine piston temperature sensor, the rotor part amplifier of the rotor part is connected with the data transmission unit, and the data transmission unit performs data interaction with the computer through a communication protocol.
In the system for detecting the temperature of the engine piston in real time, the A/D conversion modulator in the stator part is provided with a logic unit of an EEPROM (electrically erasable programmable read-only memory), and can store a remote RMC signal and send data such as offset, amplification factor and the like to an amplifier.
The invention has the beneficial effects that: (1) the temperature sensor with high speed, real-time performance, high temperature durability and high stability is designed, and can be well applied to temperature detection of the engine piston. (2) The developed wireless remote sensing/transmission module can ensure that the consistency of data is kept under the set transmission distance and frequency, and relates to the material selection, the size and the design of an anti-interference circuit of the remote sensing coil. (3) Due to the design of the high-speed piston matching structure, the installation of the temperature sensor and the coil, and the positioning of the receiving end and the stability of the transmission distance in the high-speed rotation process are ensured.
Drawings
FIG. 1 is a schematic diagram of a measured overall arrangement of the present invention including a high temperature sensor mounted on the engine piston, a remote sensing device, and a computer portion for analyzing data and detecting it in real time;
FIG. 2 is a schematic view of the installation location of the wireless remote sensing/transmission module of the present invention;
FIG. 3 is a schematic diagram of the internal structure of the wireless remote sensing/transmission module according to the present invention;
fig. 4 is a schematic view of the installation structure of the piston based on the designated engine.
Fig. 5 is a schematic diagram of the high-speed piston matching structure of the present invention.
Detailed Description
The invention discloses a real-time detection system for the temperature of an engine piston, which is mainly divided into three modules: a high temperature sensor module and a wireless remote sensing/transmission module. The high-temperature sensor and the engine piston are linked together in a matching structure, the high-temperature sensor meets the requirements of high rotating speed real-time performance, high temperature and high stability on real-time performance, and the high-temperature sensor transmits acquired data to the wireless remote sensing/transmission module in real time. In fig. 2, the connection between the high temperature sensor module and the wireless remote sensing/transmission module is well illustrated.
The wireless remote sensing/transmission module comprises two units of wireless remote sensing and transmission. Fig. 3 shows a schematic diagram of the internal structure of the wireless remote sensing/transmission module, the remote sensing unit is divided into a stator (RMC signal amplifier) and a rotor (receiving end), the stator includes an amplifier, a power supply, an a/D conversion modulator and a logic unit, and the stator receives real-time data from a high-temperature sensor. The rotor part comprises a radio frequency generator, a D/A converter and a logic unit, and data interaction (telemetering principle) is carried out between the stator and the rotor through a coil; the data transmission unit performs data interaction with the computer through a communication protocol.
The design of the high speed piston matching structure involves a temperature sensor, and the matching structure has a close relationship with the high temperature sensor and the first coil, as shown in fig. 4. The sensor and the coil are fixed at the piston part of the engine in a specific fixing mode. The matching structure can ensure the positioning of the receiving end and the stability of the transmission distance in the process of high-speed rotation.
It should be understood that parts of the specification not set forth in detail are well within the prior art.
Any changes or substitutions that may be easily conceived by one skilled in the art within the technical scope of the present disclosure are intended to be covered by the scope of the present disclosure. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (5)
1. The utility model provides an engine piston temperature real-time detection system which characterized in that: comprises that
A high-temperature sensor module: the system is arranged at the position of an engine piston, measures the internal temperature of the engine piston in real time in the running process of the engine, and sends measured temperature data to the wireless remote sensing/transmission module;
wireless remote sensing/transmission module: and receiving the data sent by the high-temperature sensor module, and sending the data to a receiving end for real-time data analysis.
2. The system for real-time detection of engine piston temperature according to claim 1, wherein: the wireless remote sensing/transmission module comprises a remote sensing unit and a data transmission unit connected with the remote sensing unit.
3. The system for real-time detection of engine piston temperature according to claim 2, wherein: the remote sensing unit is divided into a stator part and a rotor part;
the stator part is fixedly arranged on the cylinder wall and is used for receiving and amplifying an electric signal; the stator portion specifically includes:
a stator portion amplifier: the sensor is used for amplifying the electric signal transmitted by the sensor, compensating the attenuation of the electric signal and playing a role in reverse isolation to a certain extent;
power supply connected to the stator portion amplifier simultaneously: for supplying power to the individual modules
A/D conversion modulator: the processor is used for converting the analog signal into a digital signal for processing by the processor;
stator portion logic: for implementing part of internal logic operations
The rotor part is a receiving end, is fixedly arranged in the piston and moves along with the piston; the rotor portion specifically includes:
rotor part amplifier: for amplifying signals, compensating for signal attenuation
And the radio frequency generator is simultaneously connected with the rotor part amplifier: the radio frequency generator is used for generating electric signals towards the sky and used for wireless transmission;
D/A converter: for converting digital signals into analogue signals
Rotor portion logic unit: for implementing part of internal logic operations
After the telemetering function is satisfied between the stator and the rotor, engine equipment is monitored by using a telemetering principle; (the telemetering principle: measuring instruments are various sensors which measure temperature, pressure, etc. first, and these measured signals are analog signals (for example: high temperature, high signal voltage, low temperature, low signal voltage), and these signals cannot be directly sent back to the ground, because they are subjected to various interferences (for example: thunder and lightning, ionosphere, etc.) like radio signals, and must be converted into digital signals (1 or 0) before they can be transmitted back to the ground by radio technology, and after the digital signals are received by ground, the digital signals are converted into data (analog signals) by computer technology, and displayed on the screen, so that the remote radio measurement (telemetering) can be implemented;)
The rotor part amplifier of the rotor part is connected with the data transmission unit, and the data transmission unit performs data interaction with the computer through a communication protocol.
4. The system for real-time detection of engine piston temperature according to claim 3, wherein: the amplifier of the rotor part is connected with a data transmission unit, and the data transmission unit performs data interaction with a computer through a communication protocol.
5. The system for real-time detection of engine piston temperature according to claim 4, wherein: the A/D conversion modulator in the stator part is provided with a logic unit of an EEPROM (electrically erasable programmable read-Only memory), and can store remote RMC signals and send data such as offset, amplification factor and the like to an amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011076352.7A CN112432718A (en) | 2020-10-10 | 2020-10-10 | Engine piston temperature real-time detection system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011076352.7A CN112432718A (en) | 2020-10-10 | 2020-10-10 | Engine piston temperature real-time detection system |
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| Publication Number | Publication Date |
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| CN112432718A true CN112432718A (en) | 2021-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011076352.7A Pending CN112432718A (en) | 2020-10-10 | 2020-10-10 | Engine piston temperature real-time detection system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113027608A (en) * | 2021-04-06 | 2021-06-25 | 华中科技大学 | Internal combustion engine piston top surface transient temperature remote measuring system and installation method thereof |
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| US20040105484A1 (en) * | 2002-12-03 | 2004-06-03 | Kyoung-Pyo Ha | Apparatus for measuring piston temperature |
| CN102853930A (en) * | 2012-08-24 | 2013-01-02 | 大连交通大学 | Transient temperature measuring system for diesel engine piston and measuring method thereof |
| US20140180605A1 (en) * | 2012-12-21 | 2014-06-26 | Caterpillar Inc. | Piston Sensor Data Acquisition System and Method |
| CN110350667A (en) * | 2019-06-24 | 2019-10-18 | 华中科技大学 | A kind of internal combustion engine remote temperature sensing system and method based on wireless charging |
-
2020
- 2020-10-10 CN CN202011076352.7A patent/CN112432718A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040105484A1 (en) * | 2002-12-03 | 2004-06-03 | Kyoung-Pyo Ha | Apparatus for measuring piston temperature |
| CN102853930A (en) * | 2012-08-24 | 2013-01-02 | 大连交通大学 | Transient temperature measuring system for diesel engine piston and measuring method thereof |
| US20140180605A1 (en) * | 2012-12-21 | 2014-06-26 | Caterpillar Inc. | Piston Sensor Data Acquisition System and Method |
| CN110350667A (en) * | 2019-06-24 | 2019-10-18 | 华中科技大学 | A kind of internal combustion engine remote temperature sensing system and method based on wireless charging |
Non-Patent Citations (1)
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| 焦玉琴等: "基于C8051F310的内燃机活塞温度场测试系统", 《车用发动机》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113027608A (en) * | 2021-04-06 | 2021-06-25 | 华中科技大学 | Internal combustion engine piston top surface transient temperature remote measuring system and installation method thereof |
| CN113027608B (en) * | 2021-04-06 | 2022-03-01 | 华中科技大学 | Internal combustion engine piston top surface transient temperature remote measuring system and installation method thereof |
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