CN109240188A - A kind of automotive transmission oil temperature monitoring system - Google Patents
A kind of automotive transmission oil temperature monitoring system Download PDFInfo
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- CN109240188A CN109240188A CN201811070700.2A CN201811070700A CN109240188A CN 109240188 A CN109240188 A CN 109240188A CN 201811070700 A CN201811070700 A CN 201811070700A CN 109240188 A CN109240188 A CN 109240188A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/048—Monitoring; Safety
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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Abstract
The present invention provides a kind of automotive transmission oil temperature monitoring system, utilize central processing unit, temperature sensor, first signal processing circuit, pressure sensor, second signal processing circuit, image collecting device, image processing apparatus, control device, Zigbee module, user mobile phone, display device, storage device, solar panel, regulator rectifier circuit and battery, can temperature signal to speed changer internal lubrication oil and pressure signal be monitored, and signal will be measured and be transmitted to display device, storage device and user mobile phone, it allows users to obtain transmission information in real time, to realize the real-time monitoring to speed changer, it can also be according to the pressure signal automatically controlled engine operating status of the speed changer internal lubrication oil monitored, the intelligence system can also use image collecting device to the image of speed changer Information is acquired, and allows a user to the status information for more comprehensively, accurately knowing transformer.
Description
Technical field
The present invention relates to intellectual monitoring fields more particularly to a kind of automotive transmission oil temperature to monitor system.
Background technique
As living standards of the people improve, higher and higher, pursuit shift quality, comfort are required automotive quality, automatically
Shelves vehicle goes to shift gears manually at people's first choice without keeping in mind at any time, easy to operate, convenient.
People are not deep to the cognition of speed changer, and speed changer needs maintenance, certain milimeter number used, according to vehicle
Driving situation, need replacing the important components such as gasket seal, transmission oil.
Speed changer will appear oil leakage phenomenon in use, causes such case to be likely to be speed changer deformation of colliding with and leads
It causes or gasket seal aging, breakage, speed changer is installed below automobile chassis, most of drivers in use will not
If noticing that the hardware such as transmission gear without the lubrication of oil, will cause the irreversible damage of each hardware of transmission gear
It is bad, huge economic losses not only are caused to car owner, or even bring security risk to the driver or passenger driven.
Therefore, it is necessary to a kind of systems to be able to solve problems to avoid unnecessary loss and injury.
Summary of the invention
Therefore, to solve the above-mentioned problems, the present invention provides a kind of automotive transmission oil temperature monitoring system, utilizes centre
Manage device, temperature sensor, the first signal processing circuit, pressure sensor, second signal processing circuit, image collecting device, figure
As processing unit, control device, Zigbee module, user mobile phone, display device, storage device, solar panel, rectification are steady
Volt circuit and battery, can temperature signal to speed changer internal lubrication oil and pressure signal be monitored, and will survey
It obtains signal and is transmitted to display device, storage device and user mobile phone, allow users to obtain transmission information in real time, to realize
To the real-time monitoring of speed changer, automotive transmission oil temperature provided by the invention monitors system, can be according to the speed changer monitored
The pressure signal automatically controlled engine operating status of internal lubrication oil, automotive transmission oil temperature monitoring provided by the invention system
System, additionally it is possible to be acquired using image information of the image collecting device to speed changer, allow a user to more comprehensively, accurately obtain
Know the status information of transformer.
A kind of automotive transmission oil temperature according to the present invention monitors system comprising central processing unit, temperature sensor, the
One signal processing circuit, pressure sensor, second signal processing circuit, image collecting device, image processing apparatus, control dress
It sets, Zigbee module, user mobile phone, display device, storage device, solar panel, regulator rectifier circuit and battery.
Wherein, the output end of temperature sensor is connect with the input terminal of the first signal processing circuit, pressure sensor it is defeated
Outlet is connect with the input terminal of second signal processing circuit, the output end of image collecting device and the input terminal of image processing apparatus
The output end of connection, the output end of the first signal processing circuit and second signal processing circuit with the end A/D of central processing unit
Mouth connection, the output end of image processing apparatus and the serial communication port of central processing unit connect, the port I/O of central processing unit
Connect with the input terminal of control port, the input terminal of the input terminal of display device and storage device with the serial ports of central processing unit
PORT COM connection, central processing unit are connect with Zigbee module both-way communication, Zigbee module and user mobile phone both-way communication
Connection, temperature sensor are used to detect the temperature signal of speed changer internal lubrication oil, and pressure sensor is for detecting in speed changer
The pressure signal of portion's lubricating oil, image collecting device are used to acquire the image information of speed changer, the output end of solar panel
It is connect with the input terminal of regulator rectifier circuit, the output end of regulator rectifier circuit and the input terminal of battery connect, rectifying and voltage-stabilizing
The output end of circuit and the input terminal of central processing unit connect.
Preferably, temperature sensor is used to acquire the temperature signal of speed changer internal lubrication oil, and the temperature of acquisition is believed
Current signal I0 number is converted to, and current signal is transmitted to the first signal processing circuit, the first signal processing circuit includes letter
Number acquisition unit and signal processing unit, the output end of temperature sensor and the input terminal of signal acquisition unit connect, and signal is adopted
The input terminal of the output end and signal processing unit that collect unit connects, the output end of signal processing unit and central processing unit
The connection of the port ADC.
Preferably, signal acquisition unit includes resistance R1 and filter capacitor C1, wherein the output end of temperature sensor connects
The both ends of resistance R1 are connected to, the both ends of resistance R1 are connect with the both ends of filter capacitor C1, and resistance R1 is connected with filter capacitor C1
One end draw output end as signal acquisition unit, the other end that resistance R1 is connected with filter capacitor C1 is grounded.
Preferably, the voltage signal after signal processing unit processes is V1, and signal processing unit includes resistance R2-
R11, capacitor C2-C4 and integrated transporting discharging A1-A2；
Wherein, the output end of signal acquisition unit is connect with one end of resistance R3, and the other end of resistance R3 is with integrated transporting discharging A1's
Non-inverting input terminal connection, one end ground connection of resistance R2, the other end of resistance R2 are connect with the inverting input terminal of integrated transporting discharging A1, electricity
The other end of resistance R2 is also connect with one end of resistance R6, and the other end of resistance R6 is connect with the output end of integrated transporting discharging A1, resistance
The other end of R6 is also connect with one end of resistance R4, and one end of resistance R4 is connect with the output end of integrated transporting discharging A1, resistance R4's
One end is also connect with one end of resistance R7, and the other end of resistance R4 is connect with one end of resistance R5, the other end ground connection of resistance R5,
The other end of resistance R3 is connect with one end of resistance R5, and the other end of resistance R7 is connect with one end of capacitor C2, and capacitor C2's is another
One end ground connection, one end of capacitor C2 are also connect with one end of resistance R8, and the other end of resistance R7 is also connect with one end of resistance R8,
The other end of resistance R8 is connect with one end of capacitor C3, the other end of capacitor C3 ground connection, one end of capacitor C3 also with integrated transporting discharging
The inverting input terminal of A2 connects, and the other end of resistance R8 is also connect with the inverting input terminal of integrated transporting discharging A2, one end of resistance R9
Connect with the non-inverting input terminal of integrated transporting discharging A2, the other end of resistance R9 ground connection, resistance R10 and capacitor C4 it is in parallel after one end with
The output end of the other end and integrated transporting discharging A2 after the inverting input terminal connection of integrated transporting discharging A2, resistance R10 and capacitor C4 parallel connection
The other end after connection, resistance R10 and capacitor C4 are in parallel also connect with one end of resistance R11, one end of resistance R11 also with integrate
The output end of amplifier A2 connects, and the other end of resistance R11 and the port ADC of central processing unit connect, and signal processing unit will be located
Voltage signal V1 after reason is transmitted to the port ADC of central processing unit.
Preferably, pressure sensor is used to acquire the pressure of speed changer internal lubrication oil, and the pressure signal of acquisition is turned
It is changed to voltage signal V1, and voltage signal V1 is transmitted to second signal processing circuit, V2 is by second signal processing circuit
Treated voltage signal, second signal processing circuit include signal amplification unit and signal filter unit, pressure sensor
The connection of the input terminal of output end and signal amplification unit, the output end of signal amplification unit and the input terminal of signal filter unit connect
It connects, the output end of signal filter unit and the port ADC of central processing unit connect.
Preferably, the signal amplification unit includes integrated transporting discharging A3-A4, resistance R12-R17 and capacitor C5-C8；
Wherein, the output end of the pressure sensor is connect with the non-inverting input terminal of integrated transporting discharging A3, one end of capacitor C5 and collection
It is connected at the output end of amplifier A3, the other end of capacitor C5 is connect with the inverting input terminal of integrated transporting discharging A3, one end of capacitor C5
Also connect with one end of resistance R12, the other end of capacitor C5 is also connect with the other end of resistance R12, the other end of resistance R12 with
One end of resistance R13 connects, and the other end ground connection of resistance R13, one end of resistance R12 is also connect with one end of capacitor C6, capacitor
The other end of C6 is connect with one end of resistance R14, and the other end ground connection of resistance R14, the other end of capacitor C6 is also with resistance R15's
One end connection, the other end of resistance R15 are connect with the inverting input terminal of integrated transporting discharging A4, the homophase input termination of integrated transporting discharging A4
The one end on ground, capacitor C7 is connect with the inverting input terminal of integrated transporting discharging A4, the output of the other end and integrated transporting discharging A4 of capacitor C7
End connection, one end after capacitor C8 is in parallel with resistance R16 are connect with the output end of integrated transporting discharging A4, and capacitor C8 and resistance R16 are simultaneously
The other end after connection is connect with the non-inverting input terminal of integrated transporting discharging A3, the other end after capacitor C8 is in parallel with resistance R16 also with electricity
Hinder one end connection of R17, the other end ground connection of resistance R17.
Preferably, the signal filter unit includes resistance R18-R21, capacitor C9-C11 and integrated transporting discharging A5；
Wherein, the output end of the signal amplification unit is connect with one end of resistance R18, the output end of the signal amplification unit
It is also connect with one end of capacitor C9, the other end ground connection of capacitor C9, the other end of resistance R18 is connect with one end of capacitor C10, electricity
Hold the other end ground connection of C10, the other end of resistance R18 connect with the inverting input terminal of integrated transporting discharging A5, one end of resistance R19 and
The non-inverting input terminal of integrated transporting discharging A5 connects, the other end ground connection of resistance R19, one end after resistance R20 is in parallel with capacitor C11 and
The inverting input terminal of integrated transporting discharging A5 connects, the output end of the other end and integrated transporting discharging A5 after resistance R20 is in parallel with capacitor C11
Connection, the other end after resistance R20 is in parallel with capacitor C11 also connects with one end of resistance R21, one end of resistance R21 with integrate
The output end of amplifier A5 connects, and the other end of resistance R21 is connect with the port ADC of the central processing unit (1), at the signal
Reason unit will treated voltage signal V2 the is transmitted to central processing unit (1) the port ADC.
Preferably, image processing apparatus includes image denoising module, image smoothing module and image enhancement module；
Wherein, the output end of image collecting device and the input terminal of image denoising module connect, the output end of image denoising module
It is connect with the input terminal of image smoothing module, the output end of image smoothing module and the input terminal of image enhancement module connect, figure
The output end of image intensifying module and the input terminal of central processing unit connect；
The image information of image acquisition device speed changer, and image information is transmitted to image processing apparatus, image is adopted
The image definition that acquisition means are transmitted to image processing apparatus is two-dimensional function f (x, y), and wherein x, y are space coordinates, and image is gone
Module of making an uproar carries out image denoising processing to image f (x, y), and two-dimensional image function of the image after denoising is p (x, y),
Wherein,
,
Image smoothing module is smoothed above-mentioned image p (x, y), and two-dimensional image function is after picture smooth treatment
H (x, y), wherein smooth function is g (x, y),
,
, ﹡ is convolution symbol,For customized adjustable constant, smooth effect is to pass throughCome
Control,
Image enhancement module carries out image enhancement processing, the two-dimensional image after image enhancement processing to above-mentioned image h (x, y)
Function is u (x, y), wherein
,
Image u (x, y) is transmitted to central processing unit by image processing apparatus.
Preferably, Zigbee module includes DEU data encryption unit, data transmission unit and data decryption unit；
Wherein, user mobile phone and Zigbee module both-way communication, central processing unit and Zigbee module both-way communication, in user hand
When machine transfers data to central processing unit, user mobile phone sends data to DEU data encryption unit, and DEU data encryption unit is by data
It is transmitted to data transmission unit, encrypted data are transmitted to data decryption unit, data decryption unit by data transmission unit
It is transmitted to central processing unit after encrypted data are decrypted, when central processing unit transfers data to user mobile phone, in
Central processor sends data to DEU data encryption unit, and DEU data encryption unit sends data to data transmission unit, and data pass
Encrypted data are transmitted to data decryption unit by defeated unit, and data decryption unit passes after encrypted data are decrypted
Transport to user mobile phone.
Preferably, the temperature signal for the speed changer internal lubrication oil that temperature sensor will test is transmitted to the first signal
Processing circuit, the first signal processing circuit are transmitted to central processing unit after carrying out signal processing to the temperature signal received, press
The pressure signal for the speed changer internal lubrication oil that force snesor will test is transmitted to second signal processing circuit, at second signal
Reason circuit is transmitted to central processing unit, image acquisition device speed changer after carrying out signal processing to the pressure signal received
Image information, and image information is transmitted to image processing apparatus, image processing apparatus will treated image information transmission
To central processing unit, the temperature signal received, pressure signal and image information are transmitted to display device by central processing unit
It is shown, the temperature signal received, pressure signal and image information are transmitted to storage device and carried out by central processing unit
The temperature signal received, pressure signal and image information are transmitted to use by Zigbee module by storage, central processing unit
Family mobile phone, when the pressure signal monitor value of speed changer internal lubrication oil is within the scope of the MPa of 1.1MPa ~ 1.5, control device judges
The pressure signal of speed changer internal lubrication oil is in normal condition out, does not take any measure, when speed changer internal lubrication oil
For pressure signal monitor value within the scope of 0.4MPa ~ 1.1MPa or 1.5MPa ~ 1.9MPa, control device judges profit inside speed changer
The pressure of lubricating oil is lower or higher, then control device controls engine speed, and then limits car speed, moistens inside speed changer
The pressure signal monitor value of lubricating oil is less than 0.4MPa or is greater than 1.5 MPa, and control device judges speed changer internal lubrication oil
Hypotony is excessively high, then control device stops to engine oil, and then forbids vehicle driving.
Preferably, temperature sensor is non-contact type temperature sensor.
Preferably, pressure sensor is quartz pressure sensor.
Preferably, image collector is set to ccd image sensor, and storage device includes a reading data interface, data
Reading interface is USB interface.
Compared with prior art, the present invention have it is following the utility model has the advantages that
(1) automotive transmission oil temperature provided by the invention monitors system, utilizes central processing unit, temperature sensor, the first signal
Processing circuit, pressure sensor, second signal processing circuit, image collecting device, image processing apparatus, control device,
Zigbee module, user mobile phone, display device, storage device, solar panel, regulator rectifier circuit and battery, energy
It is enough that the temperature signal and pressure signal of speed changer internal lubrication oil are monitored, and signal will be measured and be transmitted to display dress
It sets, storage device and user mobile phone, allows users to obtain transmission information in real time, to realize the real-time prison to speed changer
It surveys, automotive transmission oil temperature provided by the invention monitors system, can be according to the pressure of the speed changer internal lubrication oil monitored
Signal automatically controlled engine operating status, automotive transmission oil temperature provided by the invention monitor system, additionally it is possible to use image
Acquisition device is acquired the image information of speed changer, allows a user to the state letter for more comprehensively, accurately knowing transformer
Breath；
(2) automotive transmission oil temperature provided by the invention monitors system, and image processing apparatus therein distinguishes the image of acquisition
Image denoising, image smoothing, image enhancement processing are carried out, the image information of image collecting device can efficiently, be quickly extracted, it can
The identification precision to the image information of speed changer is improved, erroneous judgement is efficiently reduced and happens.
Detailed description of the invention
Fig. 1 is the schematic diagram that a kind of automotive transmission oil temperature of the invention monitors system；
Fig. 2 is the circuit diagram of the first signal processing circuit of the invention；
Fig. 3 is the circuit diagram of second signal processing circuit of the invention；
Fig. 4 is the schematic diagram of image processing apparatus of the invention；
Fig. 5 is the schematic diagram of the Zigbee module when user mobile phone transfers data to central processing unit；
Fig. 6 is the schematic diagram of the Zigbee module when central processing unit transfers data to user mobile phone.
Appended drawing reference:
1- central processing unit；2- temperature sensor；The first signal processing circuit of 3-；4- pressure sensor；The processing of 5- second signal
Circuit；6- image collecting device；7- image processing apparatus；8- control device；9-Zigbee module；10- user mobile phone；11- is aobvious
Showing device；12- storage device；13- solar panel；14- regulator rectifier circuit；15- battery.
Specific embodiment
Automotive transmission oil temperature provided by the invention monitoring system is described in detail with reference to the accompanying drawings and examples.
As shown in Figure 1, a kind of automotive transmission oil temperature provided by the invention monitors system, automotive transmission oil temperature monitoring system
System includes central processing unit 1, temperature sensor 2, the first signal processing circuit 3, pressure sensor 4, second signal processing circuit
5, image collecting device 6, image processing apparatus 7, control device 8, Zigbee module 9, user mobile phone 10, display device 11, deposit
Storage device 12, solar panel 13, regulator rectifier circuit 14 and battery 15.
Wherein, the output end of temperature sensor 2 is connect with the input terminal of the first signal processing circuit 3, pressure sensor 4
Output end is connect with the input terminal of second signal processing circuit 5, output end and the image processing apparatus 7 of image collecting device 6
The output end of input terminal connection, the output end of the first signal processing circuit 3 and second signal processing circuit 5 is and central processing unit
1 port A/D connection, the output end of image processing apparatus 7 are connect with the serial communication port of central processing unit 1, central processing
The port I/O of device 1 is connect with the input terminal of control port 8, and the input terminal of display device 11 and the input terminal of storage device 12 are equal
It is connect with the serial communication port of central processing unit 1, central processing unit 1 is connect with 9 both-way communication of Zigbee module, Zigbee mould
Block 9 is connect with 10 both-way communication of user mobile phone, and temperature sensor 2 is used to detect the temperature signal of speed changer internal lubrication oil, pressure
Force snesor 4 is used to detect the pressure signal of speed changer internal lubrication oil, and image collecting device 6 is used to acquire the image of speed changer
The output end of information, solar panel 13 is connect with the input terminal of regulator rectifier circuit 14, the output of regulator rectifier circuit 14
End is connect with the input terminal of battery, and the output end of regulator rectifier circuit 15 is connect with the input terminal of central processing unit 1.
In above embodiment, central processing unit 1, temperature sensor 2, the first signal processing circuit 3, pressure sensing are utilized
Device 4, second signal processing circuit 5, image collecting device 6, image processing apparatus 7, control device 8, Zigbee module 9, user
Mobile phone 10, display device 11, storage device 12, solar panel 13, regulator rectifier circuit 14 and battery 15, can be right
The temperature signal and pressure signal of speed changer internal lubrication oil are monitored, and will measure signal be transmitted to display device 11,
Storage device 12 and user mobile phone 10 allow users to obtain transmission information in real time, to realize the real-time prison to speed changer
It surveys, and according to the pressure signal automatically controlled engine operating status of the speed changer internal lubrication oil monitored, while using figure
As image information of the acquisition device 6 to speed changer is acquired, the state for more comprehensively, accurately knowing transformer is allowed a user to
Information.
Solar panel 13 collects solar energy, is converted to low-voltage DC by regulator rectifier circuit 14 and is stored in storage
In battery 15, battery 15 is powered to central processing unit 1, and solar panel 13 is used to combine the form of battery 15 for center
Processor 1 is powered, and is met the requirement of energy conservation and environmental protection and Ecological Sustainable Development, is improved energy utilization rate, also reduces cost,
And be individually for central processing unit 1 using battery 15 and power, even if Vehicular accumulator cell powers off, it also can guarantee automotive transmission oil temperature
Monitoring system operates normally.
In above embodiment, pressure sensor 4 is connected to monitor the pressure of speed changer internal lubrication oil letter with speed changer
Number, after central processing unit 1 receives pressure signal, pressure signal is transmitted to control device 8, control device 8 is according to receiving
The pressure signal of speed changer internal lubrication oil judge whether speed changer needs to maintain, and control device 8 is according to the change received
Whether the pressure signal control engine of fast device internal lubrication oil runs.
In above embodiment, pressure sensor 4 also can be used the mode being mounted on outside speed changer and be tested, and pass through
Drainage way of slotting monitors the pressure signal of speed changer internal lubrication oil, and pressure sensor 4 is fixed in stable device,
To guarantee the accuracy of monitoring data.
Pressure sensor 4 is set on speed changer, and pressure sensor 4 carries out the lubrication pressure force signal in speed changer real
When monitor, to realize monitoring of the control device 8 to speed changer, then control by control device 8 revolving speed and vehicle of engine
Driving status, remind driver vehicle is maintained in time, avoid engine hardware and cause irreversible damage, and guarantor
Member's safety.
Temperature sensor 2 carries out real-time monitoring to the lubricating oil temperature signal in speed changer, and central processing unit 1 believes temperature
Number it is transmitted to control device 8, to realize monitoring of the control device 8 to speed changer, then engine is controlled by control device 8
Revolving speed and vehicle driving status, remind driver vehicle is maintained in time, avoid engine hardware and cause irreversible damage
It is bad, and guarantee personnel safety.
In above embodiment, it can be improved control device 8 using two groups of data (temperature data and pressure data) and judge
Precision, avoid wrong report judge by accident the case where.
In above embodiment, display device 11 and storage device 12 are set to car, and user is while driving vehicle
It is capable of the status information of timely learning speed changer, even if user is not in the car, additionally it is possible to pass through portable user mobile phone 10
Know the status information of speed changer.
As above-mentioned further preferential, as shown in Fig. 2, temperature sensor 2 is used to acquire speed changer internal lubrication oil
The temperature signal of acquisition is converted to current signal I0, and current signal is transmitted to the first signal processing circuit by temperature signal
3, the first signal processing circuit 3 includes signal acquisition unit and signal processing unit, and output end and the signal of temperature sensor 2 are adopted
Collect the input terminal connection of unit, the output end of signal acquisition unit and the input terminal of signal processing unit connect, signal processing list
The output end of member is connect with the port ADC of central processing unit 1.
Specifically, signal acquisition unit includes resistance R1 and filter capacitor C1, wherein the output end of temperature sensor 2 connects
The both ends of resistance R1 are connected to, the both ends of resistance R1 are connect with the both ends of filter capacitor C1, and resistance R1 is connected with filter capacitor C1
One end draw output end as signal acquisition unit, the other end that resistance R1 is connected with filter capacitor C1 is grounded.
Specifically, the voltage signal after signal processing unit processes is V1, and signal processing unit includes resistance R2-
R11, capacitor C2-C4 and integrated transporting discharging A1-A2；
Wherein, the output end of signal acquisition unit is connect with one end of resistance R3, and the other end of resistance R3 is with integrated transporting discharging A1's
Non-inverting input terminal connection, one end ground connection of resistance R2, the other end of resistance R2 are connect with the inverting input terminal of integrated transporting discharging A1, electricity
The other end of resistance R2 is also connect with one end of resistance R6, and the other end of resistance R6 is connect with the output end of integrated transporting discharging A1, resistance
The other end of R6 is also connect with one end of resistance R4, and one end of resistance R4 is connect with the output end of integrated transporting discharging A1, resistance R4's
One end is also connect with one end of resistance R7, and the other end of resistance R4 is connect with one end of resistance R5, the other end ground connection of resistance R5,
The other end of resistance R3 is connect with one end of resistance R5, and the other end of resistance R7 is connect with one end of capacitor C2, and capacitor C2's is another
One end ground connection, one end of capacitor C2 are also connect with one end of resistance R8, and the other end of resistance R7 is also connect with one end of resistance R8,
The other end of resistance R8 is connect with one end of capacitor C3, the other end of capacitor C3 ground connection, one end of capacitor C3 also with integrated transporting discharging
The inverting input terminal of A2 connects, and the other end of resistance R8 is also connect with the inverting input terminal of integrated transporting discharging A2, one end of resistance R9
Connect with the non-inverting input terminal of integrated transporting discharging A2, the other end of resistance R9 ground connection, resistance R10 and capacitor C4 it is in parallel after one end with
The output end of the other end and integrated transporting discharging A2 after the inverting input terminal connection of integrated transporting discharging A2, resistance R10 and capacitor C4 parallel connection
The other end after connection, resistance R10 and capacitor C4 are in parallel also connect with one end of resistance R11, one end of resistance R11 also with integrate
The output end of amplifier A2 connects, and the other end of resistance R11 is connect with the port ADC of central processing unit 1, and signal processing unit will be located
Voltage signal V1 after reason is transmitted to the port ADC of central processing unit 1.
In above embodiment, the resistance value of resistance R1 is 1K Ω, and the resistance value of resistance R2 is 10K Ω, and the resistance value of resistance R3 is
The resistance value of 15K Ω, resistance R4 are 4K Ω, and the resistance value of resistance R5 is 6K Ω, and the resistance value of resistance R6 is 10K Ω, the resistance value of resistance R7
For 15K Ω, the resistance value of resistance R8 is 17K Ω, and the resistance value of resistance R9 is 4.7K Ω, and the resistance value of resistance R10 is 1K Ω, resistance R11
Resistance value be 10K Ω, the capacitance of capacitor C1 is 1 μ F, and the capacitance of capacitor C2 is 0.1 μ F, and the capacitance of capacitor C3 is 0.1 μ
The capacitance of F, capacitor C4 are 200pF.
Integrated transporting discharging A1 is LT1028 amplifier, and integrated transporting discharging A2 is LT1097 amplifier.
Signal acquisition unit is powered using single supply, reduces power supply, and does not increase the complexity of signal acquisition circuit
Property, circuit structure is succinct, easy to accomplish, save the cost, and realizes the two-way acquisition that electric current is exported to temperature sensor 2,
Broad quantum, precision are high.
Current signal I0 is converted to measurable voltage signal after resistance R1, the entering signal after capacitor C1 filtering
The input terminal of processing unit, wherein resistance R1 is the build-out resistor of temperature sensor 2.
Signal processing unit is put by the signal that resistance R2-R6 and integrated transporting discharging A1 exports temperature sensor 2
Then big processing reuses resistance R7-R11, capacitor C2-C4 and integrated transporting discharging A2 and carries out to by amplified voltage signal
Low-pass filtering treatment, to improve the precision of temperature detection.
As above-mentioned further preferential, as shown in figure 3, pressure sensor 4 is used to acquire speed changer internal lubrication oil
The pressure signal of acquisition is converted to voltage signal V1, and voltage signal V1 is transmitted to second signal processing circuit 5 by pressure,
V2 be by treated the voltage signal of second signal processing circuit 5, second signal processing circuit 5 include signal amplification unit and
Signal filter unit, the output end of pressure sensor 4 and the input terminal of signal amplification unit connect, the output of signal amplification unit
End is connect with the input terminal of signal filter unit, and the output end of signal filter unit is connect with the port ADC of central processing unit 1.
Specifically, signal amplification unit includes integrated transporting discharging A3-A4, resistance R12-R17 and capacitor C5-C8；
Wherein, the output end of pressure sensor 4 is connect with the non-inverting input terminal of integrated transporting discharging A3, one end of capacitor C5 and integrated fortune
Put the output end connection of A3, the other end of capacitor C5 connect with the inverting input terminal of integrated transporting discharging A3, one end of capacitor C5 also with
One end of resistance R12 connects, and the other end of capacitor C5 is also connect with the other end of resistance R12, the other end and resistance of resistance R12
One end of R13 connects, and the other end ground connection of resistance R13, one end of resistance R12 is also connect with one end of capacitor C6, capacitor C6's
The other end is connect with one end of resistance R14, the other end ground connection of resistance R14, the one end of the other end of capacitor C6 also with resistance R15
Connection, the other end of resistance R15 are connect with the inverting input terminal of integrated transporting discharging A4, the non-inverting input terminal ground connection of integrated transporting discharging A4,
One end of capacitor C7 is connect with the inverting input terminal of integrated transporting discharging A4, and the other end of capacitor C7 and the output end of integrated transporting discharging A4 connect
It connects, one end after capacitor C8 is in parallel with resistance R16 is connect with the output end of integrated transporting discharging A4, after capacitor C8 is in parallel with resistance R16
The other end connect with the non-inverting input terminal of integrated transporting discharging A3, the other end after capacitor C8 is in parallel with resistance R16 also with resistance R17
One end connection, resistance R17 the other end ground connection.
Specifically, signal filter unit includes resistance R18-R21, capacitor C9-C11 and integrated transporting discharging A5；
Wherein, the output end of signal amplification unit is connect with one end of resistance R18, the output end of signal amplification unit also with capacitor
One end of C9 connects, and the other end ground connection of capacitor C9, the other end of resistance R18 is connect with one end of capacitor C10, capacitor C10's
Other end ground connection, the other end of resistance R18 are connect with the inverting input terminal of integrated transporting discharging A5, one end of resistance R19 and integrated fortune
Put the non-inverting input terminal connection of A5, the other end ground connection of resistance R19, one end and integrated fortune after resistance R20 is in parallel with capacitor C11
The inverting input terminal connection of A5 is put, the other end after resistance R20 is in parallel with capacitor C11 is connect with the output end of integrated transporting discharging A5,
The other end after resistance R20 is in parallel with capacitor C11 is also connect with one end of resistance R21, one end of resistance R21 and integrated transporting discharging A5
Output end connection, the other end of resistance R21 connect with the port ADC of central processing unit 1, and treated by signal processing unit general
Voltage signal V2 is transmitted to the port ADC of central processing unit 1.
In above embodiment, the noise of signal processing circuit drifts about within 40nV as 0.5 μ V/ DEG C, integrated transporting discharging A3
For LT1028 amplifier, integrated transporting discharging A4 and integrated transporting discharging A5 are LT1097 amplifier, the gain of signal amplification unit by R12 and
The ratio of R13 determines, since direct current offset and the drift of integrated transporting discharging A3 will not influence the overall offset of circuit, so that
Circuit has extremely low offset and drift.
The resistance value of resistance R12 is 10K Ω, and the resistance value of resistance R13 is 10 Ω, and the resistance value of resistance R14 is 100K Ω, resistance
The resistance value of R15 is 100K Ω, and the resistance value of resistance R16 is 10K Ω, and the resistance value of resistance R17 is 10 Ω, and the resistance value of resistance R18 is 10K
The resistance value of Ω, resistance R19 are 15K Ω, and the resistance value of resistance R20 is 15K Ω, and the resistance value of resistance R21 is 12K Ω, the electricity of capacitor C5
Capacitance is 470pF, and the capacitance of capacitor C6 is 1 μ F, and the capacitance of capacitor C7 is 1 μ F, and the capacitance of capacitor C8 is 470pF, electricity
The capacitance for holding C9 is 2 μ F, and the capacitance of capacitor C10 is 1.2 μ F, and the capacitance of capacitor C11 is 1.4 μ F.
Since the signal that pressure sensor 4 acquires is faint voltage signal, thus signal amplification unit passes through resistance
The voltage V0 that R12-R17, capacitor C5-C9 and integrated transporting discharging A3-A4 export pressure sensor 4 amplifies processing, then
It reuses resistance R18-R21, capacitor C9-C11 and integrated transporting discharging A5 and carries out low-pass filtering to by amplified voltage signal
Processing, to improve the precision of pressure detecting.
As above-mentioned further preferential, as shown in figure 4, image processing apparatus 7 includes image denoising module, image smoothing
Module and image enhancement module；
Wherein, the output end of image collecting device 6 and the input terminal of image denoising module connect, the output end of image denoising module
It is connect with the input terminal of image smoothing module, the output end of image smoothing module and the input terminal of image enhancement module connect, figure
The output end of image intensifying module is connect with the input terminal of central processing unit 1；
Image collecting device 6 acquires the image information of speed changer, and image information is transmitted to image processing apparatus 7, by image
The image definition that acquisition device 6 is transmitted to image processing apparatus 7 is two-dimensional function f (x, y), and wherein x, y are space coordinates, figure
As denoising module to image f (x, y) carry out image denoising processing, two-dimensional image function of the image after denoising be p (x,
Y), wherein
,
Image smoothing module is smoothed above-mentioned image p (x, y), and two-dimensional image function is after picture smooth treatment
H (x, y), wherein smooth function is g (x, y),
,
, ﹡ is convolution symbol,For customized adjustable constant, smooth effect is to pass throughCome
Control, user is according to adjustingValue, to adjust image p (x, y) to optimum state.
Image enhancement module carries out image enhancement processing, the image after image enhancement processing to above-mentioned image h (x, y)
Two-dimensional function is u (x, y), wherein
,
Image u (x, y) is transmitted to central processing unit 1 by image processing apparatus 7.
In above embodiment, the image of 7 pairs of image processing apparatus acquisitions carries out image denoising, image smoothing, figure respectively
Image intensifying processing, can efficiently, quickly extract the image information of image collecting device 6, the image information to speed changer can be improved
Identification precision, efficiently reduce erroneous judgement and happen.
As above-mentioned further preferential, as seen in figs. 5-6, Zigbee module 9 includes that DEU data encryption unit, data are transmitted
Unit and data decryption unit；
Wherein, user mobile phone and 9 both-way communication of Zigbee module, central processing unit 1 and 9 both-way communication of Zigbee module, with
When family mobile phone 10 transfers data to central processing unit 1, user mobile phone 10 sends data to DEU data encryption unit, data encryption list
Member sends data to data transmission unit, and encrypted data are transmitted to data decryption unit, data by data transmission unit
Decryption unit is transmitted to central processing unit 1 after encrypted data are decrypted, transfer data to user in central processing unit 1
When mobile phone 10, central processing unit 1 sends data to DEU data encryption unit, and DEU data encryption unit sends data to data transmission
Encrypted data are transmitted to data decryption unit by unit, data transmission unit, and data decryption unit is to encrypted data
User mobile phone 10 is transmitted to after being decrypted.
Specifically, temperature sensor 2 is non-contact type temperature sensor.
Specifically, pressure sensor 4 is quartz pressure sensor.
In above embodiment, in the pressure measurement to speed changer internal lubrication oil, it is desirable to be able to withstand high temperature
(several hundred degrees Celsius or more) and high pressure (several hundred a atmospheric pressure), therefore semiconductor-type pressure sensor is difficult to be competent at, and needs to change
Use quartz pressure sensor.Quartz have stability it is high, securely, temperature-sensitive characteristic good, it is linear it is good, that hysteretic properties is small etc. is excellent
Point.
Specifically, image collecting device 6 is ccd image sensor, and storage device 12 includes a reading data interface, data
Reading interface is USB interface, and user can be by the data that store in the USB interface read storage device 12, so as to user couple
The state of speed changer is studied, is analyzed.
Specifically, the temperature signal for the speed changer internal lubrication oil that temperature sensor 2 will test is transmitted to the first signal
Processing circuit 3, the first signal processing circuit 3 are transmitted to central processing unit 1 after carrying out signal processing to the temperature signal received,
The pressure signal for the speed changer internal lubrication oil that pressure sensor 4 will test is transmitted to second signal processing circuit 5, the second letter
Number processing circuit 5 is transmitted to central processing unit 1 after carrying out signal processing to the pressure signal received, and image collecting device 6 is adopted
Collect the image information of speed changer, and image information is transmitted to image processing apparatus 7, image processing apparatus 7 will treated figure
As information is transmitted to central processing unit 1, central processing unit 1 passes the temperature signal received, pressure signal and image information
It transports to display device 11 to be shown, central processing unit 1 transmits the temperature signal received, pressure signal and image information
It is stored to storage device 12, central processing unit 1 passes through the temperature signal received, pressure signal and image information
Zigbee module 9 is transmitted to user mobile phone 10.
When the pressure signal monitor value of speed changer internal lubrication oil is within the scope of the MPa of 1.1MPa ~ 1.5, control device 8 is sentenced
The pressure signal of disconnected speed changer internal lubrication oil out is in normal condition, does not take any measure, when speed changer internal lubrication oil
Pressure signal monitor value within the scope of 0.4MPa ~ 1.1MPa or 1.5 MPa ~ 1.9MPa, control device 8 is judged in speed changer
The pressure of portion's lubricating oil is lower or higher, then control device 8 controls engine speed, and then limits car speed, works as speed changer
The pressure signal monitor value of internal lubrication oil is less than 0.4MPa or is greater than 1.9 MPa, and control device 8 judges profit inside speed changer
The hypotony of lubricating oil is excessively high, then control device 8 stops to engine oil, and then forbids vehicle driving.
When the temperature signal monitor value of speed changer internal lubrication oil is within the scope of 80 DEG C ~ 100 DEG C, control device 8 is judged
The temperature signal of speed changer internal lubrication oil is in normal condition, does not take any measure, when the temperature of speed changer internal lubrication oil
It spends signal monitoring value and is greater than 100 DEG C, control device 8 judges that the temperature of speed changer internal lubrication oil is excessively high, then control device 8 is controlled
Engine speed processed, and then car speed is limited, when the temperature signal monitor value of speed changer internal lubrication oil is less than 80 DEG C, control
Device 8 judges that the temperature of speed changer internal lubrication oil is too low, then control device 8 stops to engine oil, and then forbids vehicle
Traveling.
It should be noted last that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting.Although ginseng
It is described the invention in detail according to embodiment, those skilled in the art should understand that, to technical side of the invention
Case is modified or replaced equivalently, and without departure from the spirit and scope of technical solution of the present invention, should all be covered in the present invention
Scope of the claims in.
Claims (10)
1. a kind of automotive transmission oil temperature monitors system, which is characterized in that during the automotive transmission oil temperature monitoring system includes
Central processor (1), temperature sensor (2), the first signal processing circuit (3), pressure sensor (4), second signal processing circuit
(5), image collecting device (6), image processing apparatus (7), control device (8), Zigbee module (9), user mobile phone (10), aobvious
Showing device (11), storage device (12), solar panel (13), regulator rectifier circuit (14) and battery (15)；
Wherein, the output end of the temperature sensor (2) is connect with the input terminal of first signal processing circuit (3), described
The output end of pressure sensor (4) is connect with the input terminal of the second signal processing circuit (5), described image acquisition device
(6) output end is connect with the input terminal of described image processing unit (7), the output end of first signal processing circuit (3)
It is connect with the port A/D of the central processing unit (1) with the output end of the second signal processing circuit (5), described image
The output end of processing unit (7) is connect with the serial communication port of the central processing unit (1), the central processing unit (1)
The port I/O is connect with the input terminal of the control port (8), the input terminal and the storage device of the display device (11)
(12) input terminal is connect with the serial communication port of the central processing unit (1), the central processing unit (1) with it is described
The connection of Zigbee module (9) both-way communication, the Zigbee module (9) connect with the user mobile phone (10) both-way communication, institute
It states temperature sensor (2) and becomes for detecting the temperature signal of speed changer internal lubrication oil, the pressure sensor (4) for detecting
The pressure signal of fast device internal lubrication oil, described image acquisition device (6) are used to acquire the image information of speed changer, the sun
The output end of energy solar panel (13) is connect with the input terminal of the regulator rectifier circuit (14), the regulator rectifier circuit (14)
Output end is connect with the input terminal of the battery, the output end and the central processing unit of the regulator rectifier circuit (15)
(1) input terminal connection.
2. automotive transmission oil temperature according to claim 1 monitors system, which is characterized in that the temperature sensor (2)
For acquiring the temperature signal of speed changer internal lubrication oil, the temperature signal of acquisition is converted into current signal I0, and by electric current
Signal is transmitted to first signal processing circuit (3), and first signal processing circuit (3) includes signal acquisition unit and letter
Number processing unit, the output end of the temperature sensor (2) are connect with the input terminal of the signal acquisition unit, and the signal is adopted
Collection unit output end connect with the input terminal of the signal processing unit, the output end of the signal processing unit with it is described in
The port ADC of central processor (1) connects.
3. automotive transmission oil temperature according to claim 2 monitors system, which is characterized in that the signal acquisition unit packet
Include resistance R1 and filter capacitor C1, wherein the output end of the temperature sensor (2) is connected to the both ends of resistance R1, resistance R1
Both ends connect with the both ends of filter capacitor C1, one end that resistance R1 is connected with filter capacitor C1 is drawn adopts as the signal
Collect the output end of unit, the other end ground connection that resistance R1 is connected with filter capacitor C1.
4. automotive transmission oil temperature according to claim 3 monitors system, which is characterized in that pass through the signal processing list
Member treated voltage signal is V1, and the signal processing unit includes resistance R2-R11, capacitor C2-C4 and integrated transporting discharging
A1-A2；
Wherein, the output end of the signal acquisition unit is connect with one end of resistance R3, the other end and integrated transporting discharging of resistance R3
The non-inverting input terminal of A1 connects, and one end ground connection of resistance R2, the other end of resistance R2 and the inverting input terminal of integrated transporting discharging A1 connect
It connecing, the other end of resistance R2 is also connect with one end of resistance R6, and the other end of resistance R6 is connect with the output end of integrated transporting discharging A1,
The other end of resistance R6 is also connect with one end of resistance R4, and one end of resistance R4 is connect with the output end of integrated transporting discharging A1, resistance
One end of R4 is also connect with one end of resistance R7, and the other end of resistance R4 is connect with one end of resistance R5, the other end of resistance R5
Ground connection, the other end of resistance R3 are connect with one end of resistance R5, and the other end of resistance R7 is connect with one end of capacitor C2, capacitor C2
Other end ground connection, one end of capacitor C2 also connect with one end of resistance R8, the other end of resistance R7 also one end with resistance R8
Connection, the other end of resistance R8 connect with one end of capacitor C3, and the other end of capacitor C3 is grounded, one end of capacitor C3 also with integrate
The inverting input terminal of amplifier A2 connects, and the other end of resistance R8 is also connect with the inverting input terminal of integrated transporting discharging A2, resistance R9's
One end is connect with the non-inverting input terminal of integrated transporting discharging A2, the other end of resistance R9 ground connection, resistance R10 and capacitor C4 it is in parallel after one
End is connect with the inverting input terminal of integrated transporting discharging A2, and the other end after resistance R10 and capacitor C4 parallel connection is defeated with integrated transporting discharging A2's
Outlet connection, resistance R10 and capacitor C4 it is in parallel after the other end also connect with one end of resistance R11, one end of resistance R11 also with
The output end of integrated transporting discharging A2 connects, and the other end of resistance R11 is connect with the port ADC of the central processing unit (1), the letter
Number processing unit will treated voltage signal V1 the is transmitted to central processing unit (1) the port ADC.
5. automotive transmission oil temperature according to claim 1 monitors system, which is characterized in that the pressure sensor (4)
For acquiring the pressure of speed changer internal lubrication oil, the pressure signal of acquisition is converted into voltage signal V1, and by voltage signal
V1 is transmitted to the second signal processing circuit (5), and V2 is by the second signal processing circuit (5) treated voltage letter
Number, the second signal processing circuit (5) includes signal amplification unit and signal filter unit, the pressure sensor (4)
Output end is connect with the input terminal of the signal amplification unit, and the output end of the signal amplification unit and signal filtering are single
The input terminal connection of member, the output end of the signal filter unit are connect with the port ADC of the central processing unit (1).
6. automotive transmission oil temperature according to claim 5 monitors system, which is characterized in that the signal amplification unit packet
Include integrated transporting discharging A3-A4, resistance R12-R17 and capacitor C5-C8；
Wherein, the output end of the pressure sensor (4) is connect with the non-inverting input terminal of integrated transporting discharging A3, one end of capacitor C5 with
The output end of integrated transporting discharging A3 connects, and the other end of capacitor C5 is connect with the inverting input terminal of integrated transporting discharging A3, and the one of capacitor C5
End is also connect with one end of resistance R12, and the other end of capacitor C5 is also connect with the other end of resistance R12, the other end of resistance R12
It is connect with one end of resistance R13, the other end ground connection of resistance R13, one end of resistance R12 is also connect with one end of capacitor C6, electricity
The other end for holding C6 is connect with one end of resistance R14, and the other end of resistance R14 is grounded, the other end of capacitor C6 also with resistance R15
One end connection, the other end of resistance R15 connect with the inverting input terminal of integrated transporting discharging A4, the non-inverting input terminal of integrated transporting discharging A4
Ground connection, one end of capacitor C7 connect with the inverting input terminal of integrated transporting discharging A4, and the other end of capacitor C7 is defeated with integrated transporting discharging A4's
Outlet connection, one end after capacitor C8 is in parallel with resistance R16 are connect with the output end of integrated transporting discharging A4, capacitor C8 and resistance R16
The other end after parallel connection is connect with the non-inverting input terminal of integrated transporting discharging A3, the other end after capacitor C8 is in parallel with resistance R16 also with
One end of resistance R17 connects, the other end ground connection of resistance R17.
7. automotive transmission oil temperature according to claim 6 monitors system, which is characterized in that the signal filter unit packet
Include resistance R18-R21, capacitor C9-C11 and integrated transporting discharging A5；
Wherein, the output end of the signal amplification unit is connect with one end of resistance R18, the output end of the signal amplification unit
It is also connect with one end of capacitor C9, the other end ground connection of capacitor C9, the other end of resistance R18 is connect with one end of capacitor C10, electricity
Hold the other end ground connection of C10, the other end of resistance R18 connect with the inverting input terminal of integrated transporting discharging A5, one end of resistance R19 and
The non-inverting input terminal of integrated transporting discharging A5 connects, the other end ground connection of resistance R19, one end after resistance R20 is in parallel with capacitor C11 and
The inverting input terminal of integrated transporting discharging A5 connects, the output end of the other end and integrated transporting discharging A5 after resistance R20 is in parallel with capacitor C11
Connection, the other end after resistance R20 is in parallel with capacitor C11 also connects with one end of resistance R21, one end of resistance R21 with integrate
The output end of amplifier A5 connects, and the other end of resistance R21 is connect with the port ADC of the central processing unit (1), at the signal
Reason unit will treated voltage signal V2 the is transmitted to central processing unit (1) the port ADC.
8. automotive transmission oil temperature according to claim 1 monitors system, which is characterized in that described image processing unit
It (7) include image denoising module, image smoothing module and image enhancement module；
Wherein, the output end of described image acquisition device (6) is connect with the input terminal of described image denoising module, and described image is gone
The output end for module of making an uproar is connect with the input terminal of described image Leveling Block, the output end of described image Leveling Block and the figure
The input terminal of image intensifying module connects, and described image enhances the output end of module and the input terminal of the central processing unit (1) connects
It connects；
Described image acquisition device (6) acquires the image information of speed changer, and image information is transmitted to described image processing dress
Set (7), by described image acquisition device (6) be transmitted to described image processing unit (7) image definition be two-dimensional function f (x,
Y), wherein x, y are space coordinates, and described image denoises module and carries out image denoising processing to image f (x, y), and image was through the past
Making an uproar treated, two-dimensional image function is p (x, y), wherein
,
Described image Leveling Block is smoothed above-mentioned image p (x, y), the two-dimensional image letter after picture smooth treatment
Number is h (x, y), and wherein smooth function is g (x, y),
,
, ﹡ is convolution symbol,For customized adjustable constant, smooth effect is to pass throughCome
Control,
Described image enhances module and carries out image enhancement processing, the image after image enhancement processing to above-mentioned image h (x, y)
Two-dimensional function is u (x, y), wherein
,
Image u (x, y) is transmitted to the central processing unit (1) by described image processing unit (7).
9. automotive transmission oil temperature according to claim 1 monitors system, which is characterized in that the Zigbee module (9)
Including DEU data encryption unit, data transmission unit and data decryption unit；
Wherein, the user mobile phone and the Zigbee module (9) both-way communication, the central processing unit (1) with it is described
Zigbee module (9) both-way communication, when the user mobile phone (10) transfers data to the central processing unit (1), the use
Family mobile phone (10) sends data to the DEU data encryption unit, and the DEU data encryption unit sends data to the data and passes
Encrypted data are transmitted to the data decryption unit, the data decryption unit by defeated unit, the data transmission unit
It is transmitted to the central processing unit (1) after encrypted data are decrypted, is transferred data in the central processing unit (1)
When user mobile phone (10), the central processing unit (1) sends data to the DEU data encryption unit, the data encryption
Unit sends data to the data transmission unit, and encrypted data are transmitted to the data by the data transmission unit
Decryption unit, the data decryption unit are transmitted to the user mobile phone (10) after encrypted data are decrypted.
10. automotive transmission oil temperature according to claim 1 monitors system, which is characterized in that the temperature sensor (2)
The temperature signal for the speed changer internal lubrication oil that will test is transmitted to first signal processing circuit (3), first letter
Number processing circuit (3) is transmitted to the central processing unit (1), the pressure after carrying out signal processing to the temperature signal received
The pressure signal for the speed changer internal lubrication oil that sensor (4) will test is transmitted to the second signal processing circuit (5), institute
It states after second signal processing circuit (5) carries out signal processing to the pressure signal received and is transmitted to the central processing unit (1),
Described image acquisition device (6) acquires the image information of speed changer, and image information is transmitted to described image processing unit
(7), by treated, image information is transmitted to the central processing unit (1) to described image processing unit (7), the central processing
The temperature signal received, pressure signal and image information are transmitted to the display device (11) and shown by device (1), institute
It states central processing unit (1) and the temperature signal received, pressure signal and image information is transmitted to the storage device (12)
It is stored, the central processing unit (1) passes through the temperature signal received, pressure signal and image information described
Zigbee module (9) is transmitted to the user mobile phone (10), when the pressure signal monitor value of speed changer internal lubrication oil exists
Within the scope of the MPa of 1.1MPa ~ 1.5, the control device (8) judges that the pressure signal of speed changer internal lubrication oil is in normal
State does not take any measure, when the pressure signal monitor value of speed changer internal lubrication oil is in 0.4MPa ~ 1.1MPa or 1.5MPa
Within the scope of ~ 1.9MPa, the control device (8) judges that the pressure of speed changer internal lubrication oil is lower or higher, then the control
Device (8) processed controls engine speed, and then limits car speed, when the pressure signal monitor value of speed changer internal lubrication oil is small
In 0.4MPa or it is greater than 1.5 MPa, the control device (8) judges the hypotony or excessively high of speed changer internal lubrication oil,
Then the control device (8) stops to engine oil, and then forbids vehicle driving.
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| CN201811070700.2A CN109240188A (en) | 2018-09-13 | 2018-09-13 | A kind of automotive transmission oil temperature monitoring system |
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| CN201811070700.2A CN109240188A (en) | 2018-09-13 | 2018-09-13 | A kind of automotive transmission oil temperature monitoring system |
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| CN110017367A (en) * | 2019-04-17 | 2019-07-16 | 重庆长安汽车股份有限公司 | The intelligent monitor system of automobile transmission lubrication oil |
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Application publication date: 20190118 |
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| WD01 | Invention patent application deemed withdrawn after publication |