CN112555024A - Engine operation monitoring and security system and security method thereof - Google Patents
Engine operation monitoring and security system and security method thereof Download PDFInfo
- Publication number
- CN112555024A CN112555024A CN202011363123.3A CN202011363123A CN112555024A CN 112555024 A CN112555024 A CN 112555024A CN 202011363123 A CN202011363123 A CN 202011363123A CN 112555024 A CN112555024 A CN 112555024A
- Authority
- CN
- China
- Prior art keywords
- module
- rotating speed
- signal
- engine
- digital signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000012544 monitoring process Methods 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims description 6
- 238000006243 chemical reaction Methods 0.000 claims abstract description 26
- 238000001514 detection method Methods 0.000 claims abstract description 12
- 239000010705 motor oil Substances 0.000 claims abstract description 11
- 239000000110 cooling liquid Substances 0.000 claims abstract description 10
- 238000012545 processing Methods 0.000 claims abstract description 10
- 239000003921 oil Substances 0.000 claims description 7
- 238000012546 transfer Methods 0.000 claims description 5
- 230000010354 integration Effects 0.000 abstract description 5
- 239000000446 fuel Substances 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/08—Safety, indicating, or supervising devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D17/00—Controlling engines by cutting out individual cylinders; Rendering engines inoperative or idling
- F02D17/04—Controlling engines by cutting out individual cylinders; Rendering engines inoperative or idling rendering engines inoperative or idling, e.g. caused by abnormal conditions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/042—Introducing corrections for particular operating conditions for stopping the engine
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/12—Introducing corrections for particular operating conditions for deceleration
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
The invention relates to an engine operation monitoring and security system, comprising: the analog signal acquisition module is used for acquiring the temperature of the cooling liquid and the pressure of the engine oil; the ADC conversion module is connected with the analog signal acquisition module and is used for converting the acquired current signal into a digital signal; the rotating speed acquisition module is used for detecting the rotating speed of the engine; the digital signal output module is used for sending a control instruction; the display module is used for receiving the detection parameters and displaying the detection parameters; the processing module is respectively connected with the ADC conversion module, the rotating speed acquisition module, the digital signal output module and the display module, and is used for receiving signal input and storing data, judging whether the temperature, the pressure and the rotating speed are greater than set thresholds, sending a control instruction and sending detection parameters; the power module is respectively connected with the processing module and the display module. The engine operation monitoring and security system provided by the invention has the advantages of high integration level, good stability and multiple monitoring items.
Description
Technical Field
The invention relates to monitoring of an engine, in particular to an engine operation monitoring and security system and a security method thereof.
Background
The engine is a machine capable of converting energy in other forms into mechanical energy, is an important device for providing power for other machines, has the advantages of being fast to start, simple to maintain and the like, is a main power unit for automobiles and ships, and therefore needs to be monitored, but the existing monitoring system is poor in integration level, few in monitoring items and poor in stability.
Disclosure of Invention
In order to solve the problems, the invention provides an engine operation monitoring and security system with high integration level, good stability and multiple monitoring items, and the specific technical scheme is as follows:
an engine operation monitoring, security system comprising: the analog signal acquisition module is used for acquiring the temperature of cooling liquid and the pressure of engine oil; the ADC conversion module is connected with the analog signal acquisition module and is used for converting the acquired current signal into a digital signal; the rotating speed acquisition module is used for detecting the rotating speed of the engine; the digital signal output module is used for sending a control instruction; the display module is used for receiving the detection parameters and displaying the detection parameters; the processing module is respectively connected with the ADC conversion module, the rotating speed acquisition module, the digital signal output module and the display module, and is used for receiving signal input and storing data, judging whether the temperature, the pressure and the rotating speed are greater than set threshold values, sending a control instruction and sending detection parameters; and the power supply module is respectively connected with the processing module and the display module.
Further, the power module includes: the automatic conversion switch is used for automatically switching to external power supply or internal power supply according to the external power supply condition; an AC-DC conversion module connected to the automatic transfer switch, the AC-DC conversion module configured to convert an input voltage to DC 24V; a backup battery; and the direct current UPS controller is respectively connected with the AC-DC conversion module and the standby battery and is used for switching to supply power to the AC-DC conversion module or supply power to the standby battery.
An engine security method comprising the steps of:
s1, setting a threshold: setting a pressure threshold value of the engine oil pressure, wherein the pressure threshold value is 0.6 bar; setting a temperature threshold of the cooling liquid, wherein the temperature threshold is 160 ℃;
s2, collecting signals;
s3, judging and controlling signals, if the rotating speed is not more than 0, giving an alarm, displaying the alarm by a display module, and giving a control signal to adjust the rotating speed by a digital signal output module; if the collected engine oil pressure is smaller than the pressure threshold value and the duration time is not less than 10s, a pressure fault alarm is sent out, and a digital signal output module sends out a stop signal, an air cut-off signal and an oil cut-off signal; if the acquired rotating speed is more than 800rpm, the digital signal output module sends out a deceleration signal; if the temperature of the cooling liquid exceeds 160 ℃, the first 10s sends out an alarm signal, and if the temperature exceeds 160 ℃ and the time is more than 10s, a stop signal is sent out.
Compared with the prior art, the invention has the following beneficial effects:
the engine operation monitoring and security system provided by the invention has the advantages of high integration level, good stability and multiple monitoring items.
Drawings
FIG. 1 is a block diagram of an engine operation monitoring and security system;
fig. 2 is a block diagram of the structure of the power supply module.
Detailed Description
The invention will now be further described with reference to the accompanying drawings.
Example one
As shown in fig. 1 and 2, an engine operation monitoring and security system includes: the analog signal acquisition module is used for acquiring the temperature of cooling liquid and the pressure of engine oil; the ADC conversion module is connected with the analog signal acquisition module and is used for converting the acquired current signal into a digital signal; the rotating speed acquisition module is used for detecting the rotating speed of the engine; the digital signal output module is used for sending a control instruction; the display module is used for receiving the detection parameters and displaying the detection parameters; the processing module is respectively connected with the ADC conversion module, the rotating speed acquisition module, the digital signal output module and the display module, and is used for receiving signal input and storing data, judging whether the temperature, the pressure and the rotating speed are greater than set threshold values, sending a control instruction and sending detection parameters; and the power supply module is respectively connected with the processing module and the display module.
The power module includes: the automatic conversion switch is used for automatically switching to external power supply or internal power supply according to the external power supply condition; an AC-DC conversion module connected to the automatic transfer switch, the AC-DC conversion module configured to convert an input voltage to DC 24V; a backup battery; and the direct current UPS controller is respectively connected with the AC-DC conversion module and the standby battery and is used for switching to supply power to the AC-DC conversion module or supply power to the standby battery.
The processing control module is used for processing signals, CAN communicate with the outside by 485, CAN and Ethernet interfaces, and completes data storage. The digital signal output module is mainly used for realizing high and low level change signals and can be used as a trigger signal of an engine electric control unit so as to realize the control of stopping, reducing the speed, cutting off oil, cutting off gas and the like of the engine and realize the indication output of the related state of a security monitoring system; the display module is mainly used for displaying the engine state and realizing the numerical value alarm function.
Key parameters of the engine, such as coolant temperature, engine oil temperature, engine speed and the like, are directly input into a security system through an independent sensor; other non-key control input parameters and engine state parameters are input through an independent sensor or are transmitted to a monitoring system through a communication interface by an engine electric control unit, a remote control system and a machine side control system in a communication transmission mode. The output operation of the security system is directly input to an engine electronic control unit and a related fuel cut and gas cut-off device in a mode of connecting signals through hard wires, and the engine is controlled to execute corresponding operation. And displaying the corresponding key parameters through a display screen.
As shown in fig. 2, the power module is composed of an automatic transfer switch, an AC-DC conversion module, a DC UPS controller, and a backup battery. The main power supply and the standby power supply are input simultaneously, the automatic change-over switch judges the external power supply condition to judge and switch the power supply mode, and when the main power supply system cannot normally supply power, the standby power supply is automatically switched; the output 220v of the automatic transfer switch enters an AC-DC conversion module to be converted into DC24V, and DC24V enters a direct current UPS controller. The UPS controller is connected with the AC-DC conversion module and the 24V standby battery, and when the main power supply and the standby power supply are disconnected simultaneously, the UPS controller switches the standby battery to supply power instantly, so that the normal operation of the system is ensured.
An engine operation monitoring and security system solves the problems of low integration level and inconvenient installation; the key parameters of the engine are collected and transmitted to the CPU module, and signals are output to the engine electric control unit and the related fuel cut-off and gas cut-off device through the CPU module, so that the engine is controlled to execute corresponding operation and execute emergency fuel cut-off and gas cut-off operation.
Example two
An engine security method comprising the steps of:
s1, setting a threshold: setting a pressure threshold value of the engine oil pressure, wherein the pressure threshold value is 0.6 bar; setting a temperature threshold of the cooling liquid, wherein the temperature threshold is 160 ℃;
s2, collecting signals;
s3, judging and controlling signals, if the rotating speed is not more than 0, giving an alarm, displaying the alarm by a display module, and giving a control signal to adjust the rotating speed by a digital signal output module; if the collected engine oil pressure is smaller than the pressure threshold value and the duration time is not less than 10s, a pressure fault alarm is sent out, and a digital signal output module sends out a stop signal, an air cut-off signal and an oil cut-off signal; if the acquired rotating speed is more than 800rpm, the digital signal output module sends out a deceleration signal; if the temperature of the cooling liquid exceeds 160 ℃, the first 10s sends out an alarm signal, and if the temperature exceeds 160 ℃ and the time is more than 10s, a stop signal is sent out.
Digital pulse signal input: the pulse signal is directly connected to the digital signal input interface, the measurement period is assumed to be about one second, the interruption can be generated on the rising edge of the measured signal, the time of the real-time clock is read in the hardware digital signal input module, the interruption frequency is recorded, the time which has elapsed from the first rising edge is calculated, and if the time exceeds one second, the rotating speed is calculated according to the signal period number and the elapsed time. And (3) interrupting for 500 times and 500rpm in 1min, triggering a fault when the rotating speed is less than or equal to 0rpm, displaying an alarm signal by a display, and outputting a control signal by a digital output module.
And (3) digital signal output: when the collected analog pressure signal exceeds the threshold value and is lower than or equal to 0.6bar and below and the state duration reaches 10s, the digital signal output module outputs a fault stop signal; the output is transmitted to an electric control unit to control the engine to stop, an alarm indication signal is sent out, an oil cut-off control signal is output to control the oil cut-off device to cut off oil, and an air cut-off control signal is output to control the air cut-off device to cut off air. When the rotating speed signal is higher than the set value of 800rpm, the digital signal output module outputs a rotating speed setting indication signal and decelerates to the target rotating speed indication rotating speed.
The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive step, which shall fall within the scope of the appended claims.
Claims (3)
1. An engine operation monitoring, security system, comprising:
the analog signal acquisition module is used for acquiring the temperature of cooling liquid and the pressure of engine oil;
the ADC conversion module is connected with the analog signal acquisition module and is used for converting the acquired current signal into a digital signal;
the rotating speed acquisition module is used for detecting the rotating speed of the engine;
the digital signal output module is used for sending a control instruction;
the display module is used for receiving the detection parameters and displaying the detection parameters;
the processing module is respectively connected with the ADC conversion module, the rotating speed acquisition module, the digital signal output module and the display module, and is used for receiving signal input and storing data, judging whether the temperature, the pressure and the rotating speed are greater than set threshold values, sending a control instruction and sending detection parameters; and
and the power supply module is respectively connected with the processing module and the display module.
2. An engine operation monitoring and security system as claimed in claim 1,
the power module includes:
the automatic conversion switch is used for automatically switching to external power supply or internal power supply according to the external power supply condition;
an AC-DC conversion module connected to the automatic transfer switch, the AC-DC conversion module configured to convert an input voltage to DC 24V;
a backup battery; and
and the direct current UPS controller is respectively connected with the AC-DC conversion module and the standby battery and is used for switching to supply power to the AC-DC conversion module or supply power to the standby battery.
3. An engine security method is characterized by comprising the following steps:
s1, setting a threshold: setting a pressure threshold value of the engine oil pressure, wherein the pressure threshold value is 0.6 bar; setting a temperature threshold of the cooling liquid, wherein the temperature threshold is 160 ℃;
s2, collecting signals;
s3, judging and controlling signals, if the rotating speed is not more than 0, giving an alarm, displaying the alarm by a display module, and giving a control signal to adjust the rotating speed by a digital signal output module; if the collected engine oil pressure is smaller than the pressure threshold value and the duration time is not less than 10s, a pressure fault alarm is sent out, and a digital signal output module sends out a stop signal, an air cut-off signal and an oil cut-off signal; if the acquired rotating speed is more than 800rpm, the digital signal output module sends out a deceleration signal; if the temperature of the cooling liquid exceeds 160 ℃, the first 10s sends out an alarm signal, and if the temperature exceeds 160 ℃ and the time is more than 10s, a stop signal is sent out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011363123.3A CN112555024A (en) | 2020-11-27 | 2020-11-27 | Engine operation monitoring and security system and security method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011363123.3A CN112555024A (en) | 2020-11-27 | 2020-11-27 | Engine operation monitoring and security system and security method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112555024A true CN112555024A (en) | 2021-03-26 |
Family
ID=75046594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011363123.3A Pending CN112555024A (en) | 2020-11-27 | 2020-11-27 | Engine operation monitoring and security system and security method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112555024A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113092120A (en) * | 2021-04-08 | 2021-07-09 | 山东交通学院 | Unattended engine endurance test artificial intelligence monitoring system |
| CN113643457A (en) * | 2021-08-07 | 2021-11-12 | 赵兵 | Intelligent acquisition method for traditional structural parameters of engine |
| CN114033567A (en) * | 2021-11-30 | 2022-02-11 | 中船动力研究院有限公司 | Electric control system of engine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101706664A (en) * | 2009-10-10 | 2010-05-12 | 北京和利时自动化驱动技术有限公司 | Method for debugging switch controller |
| CN104807650A (en) * | 2015-05-15 | 2015-07-29 | 山东大学 | System and method for intelligently analyzing comprehensive performance of high-power engine |
| CN205450758U (en) * | 2015-12-25 | 2016-08-10 | 廖金能 | Novel generator set controller suitable for long -range failure diagnosis |
-
2020
- 2020-11-27 CN CN202011363123.3A patent/CN112555024A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101706664A (en) * | 2009-10-10 | 2010-05-12 | 北京和利时自动化驱动技术有限公司 | Method for debugging switch controller |
| CN104807650A (en) * | 2015-05-15 | 2015-07-29 | 山东大学 | System and method for intelligently analyzing comprehensive performance of high-power engine |
| CN205450758U (en) * | 2015-12-25 | 2016-08-10 | 廖金能 | Novel generator set controller suitable for long -range failure diagnosis |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113092120A (en) * | 2021-04-08 | 2021-07-09 | 山东交通学院 | Unattended engine endurance test artificial intelligence monitoring system |
| CN113643457A (en) * | 2021-08-07 | 2021-11-12 | 赵兵 | Intelligent acquisition method for traditional structural parameters of engine |
| CN114033567A (en) * | 2021-11-30 | 2022-02-11 | 中船动力研究院有限公司 | Electric control system of engine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112555024A (en) | Engine operation monitoring and security system and security method thereof | |
| CN201156284Y (en) | Electric fire monitoring detector | |
| CN105449865A (en) | Intelligent (feeder terminal unit) FTU used for fault positioning and isolating for distribution network | |
| CN102148529B (en) | Control device and control method thereof for intelligently supplying power to circuit breaker control unit | |
| CN201994717U (en) | Control device for supplying power to breaker control units | |
| CN207965069U (en) | A kind of power relay protection device | |
| CN210838933U (en) | Silicon chain open-circuit protection system for direct-current power supply of power system | |
| CN110552872A (en) | Intelligent water pump controller and control method | |
| CN106523340A (en) | Broken line fault treatment system and method for pressure sensor of variable frequency air compressor | |
| CN102435933A (en) | Automobile circuit fault discrimination method | |
| CN213276333U (en) | Electromechanical device operation remote monitoring system | |
| CN211116535U (en) | Intelligent water pump controller | |
| CN209913577U (en) | Intelligent breaker controller for distribution transformer of low-voltage distribution area of Internet of things | |
| CN203606937U (en) | Dual system mistaken ringing prevention alarm control device | |
| CN206299551U (en) | Frequency conversion air compressor pressure sensor disconnection fault processing system | |
| CN202405862U (en) | Automatic power transfer switch controller | |
| CN216122254U (en) | Intelligent controller with time and frequency control function | |
| CN101441463B (en) | System for generating emergent stop signal of mechanical equipment and engineering machinery thereof | |
| CN212627143U (en) | Profibus-DP-based motor protection control system | |
| CN217133812U (en) | Anti-electricity-stealing circuit of base station | |
| CN221425957U (en) | Bearing vibration detection system | |
| CN221507384U (en) | Temperature monitoring device inside temperature control instrument of dry-type transformer | |
| CN215761935U (en) | Unit monitoring system | |
| CN210380232U (en) | Turnout switch machine phase loss protector with alarming function | |
| CN113942943B (en) | Device and method for monitoring safe operation of crane |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210326 |