CN113147548A - Control method, device and equipment for vehicle-mounted refrigerator and storage medium - Google Patents
Control method, device and equipment for vehicle-mounted refrigerator and storage medium Download PDFInfo
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- CN113147548A CN113147548A CN202110423500.6A CN202110423500A CN113147548A CN 113147548 A CN113147548 A CN 113147548A CN 202110423500 A CN202110423500 A CN 202110423500A CN 113147548 A CN113147548 A CN 113147548A
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Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N3/00—Arrangements or adaptations of other passenger fittings, not otherwise provided for
- B60N3/10—Arrangements or adaptations of other passenger fittings, not otherwise provided for of receptacles for food or beverages, e.g. refrigerated
- B60N3/104—Arrangements or adaptations of other passenger fittings, not otherwise provided for of receptacles for food or beverages, e.g. refrigerated with refrigerating or warming systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention discloses a control method, a control device, control equipment and a storage medium for a vehicle-mounted refrigerator, wherein the driving data of a vehicle is acquired in the driving process of the vehicle; according to the driving data, adopting a pre-constructed road surface terrain recognition model to recognize the road surface terrain on which the vehicle is currently driven; according to a preset road surface topography and a beverage foaming degree value association table, obtaining a beverage foaming degree value corresponding to the identified road surface topography; comparing the foaming degree value of the beverage with a preset foaming threshold value; when the foaming degree value of the beverage is larger than the foaming threshold value, the use warning information of the vehicle-mounted refrigerator is output, so that a vehicle user can predict in advance that the phenomenon of spraying can occur when the gassy beverage stored in the vehicle-mounted refrigerator is opened according to the use warning information, the gassy beverage taken out of the vehicle-mounted refrigerator is prevented from being immediately opened, the problem that the phenomenon of spraying the beverage when the beverage is taken out of the vehicle-mounted refrigerator and opened under different road surface terrains is solved, and the use experience of the vehicle-mounted refrigerator is improved.
Description
Technical Field
The invention relates to the technical field of vehicle-mounted refrigerator control, in particular to a control method, a control device, control equipment and a storage medium for a vehicle-mounted refrigerator.
Background
In order to meet the requirements of vehicle users on the multifunction of the vehicle, the vehicle-mounted refrigerator is one of the conventional choices of part of the vehicles. The vehicle has been equipped with on-vehicle refrigerator for the vehicle user can put into on-vehicle refrigerator with the refrigerated things of various suits (for example, the beverage bottle that is equipped with the drinks, soda bottle, fruit etc.), and at the in-process of driving the vehicle, the vehicle user can open on-vehicle refrigerator and get the thing in the on-vehicle refrigerator, with promotion vehicle user's driving experience.
However, the use of the current in-vehicle refrigerator may cause the following problems: when the vehicle went on the road surface of comparatively jolting, if open on-vehicle refrigerator at this in-process, the beverage that contains gas can make in the beverage bottle a large amount of bubbles because of the jolting on road surface, if take out the beverage bottle from on-vehicle refrigerator in a trade and open the problem that the beverage jetted out to reduce on-vehicle refrigerator's use and experience.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide a method, an apparatus, a device and a storage medium for controlling a vehicle-mounted refrigerator, which can avoid the problem of beverage spraying when a vehicle user takes out air-containing beverages from the vehicle-mounted refrigerator and opens the vehicle-mounted refrigerator on different road surfaces, thereby improving the use experience of the vehicle-mounted refrigerator.
In a first aspect, an embodiment of the present invention provides a control method for an on-vehicle refrigerator, including:
acquiring running data of a vehicle in the running process of the vehicle;
according to the driving data, adopting a pre-constructed road surface terrain recognition model to recognize the road surface terrain on which the vehicle is currently driven;
according to a preset road surface topography and a beverage foaming degree value association table, obtaining a beverage foaming degree value corresponding to the identified road surface topography;
comparing the beverage foaming degree value with a preset foaming threshold value;
and when the foaming degree value of the beverage is greater than the foaming threshold value, outputting the use warning information of the vehicle-mounted refrigerator.
As an improvement of the above, after identifying the road topography on which the vehicle is currently running by using a road topography identification model constructed in advance according to the running data, the method further includes:
obtaining refrigerator use control parameters corresponding to the recognized road topography according to a preset road topography and refrigerator use control parameter association table;
according to the refrigerator control parameters, the door cover opening speed and the carrier pushing speed of the vehicle-mounted refrigerator are set, so that when the vehicle-mounted refrigerator is used under the road terrain, the door cover is opened according to the set door cover opening speed, and the carrier is pushed out according to the set carrier pushing speed;
the vehicle-mounted refrigerator is provided with a storage cavity, a door cover for opening or closing an opening of the storage cavity and a carrier accommodated in the storage cavity; the goods carrier comprises a driving device, a goods carrier body and a control device for controlling the driving device; the driving device comprises a sliding driving component and a motor component controlled by the control device, the driving end of the motor component is connected with the moving end of the sliding driving component, and the commodity shelf body is connected with the fixed end of the sliding driving component, so that the commodity shelf body extends out of or retracts into the storage cavity under the driving of the driving device.
As an improvement of the above scheme, the driving data includes vibration signal data of the vehicle suspension collected by the suspension sensor in the driving process of the vehicle;
the recognizing the road topography where the vehicle runs currently by adopting a road topography recognition model which is constructed in advance according to the running data comprises the following steps:
comparing the sequence length of the vibration signal data acquired by accumulating this time with the preset data interception width of the sliding window;
when the sequence length of the vibration signal data acquired by accumulating at this time reaches the preset data interception width of the sliding window, inputting the vibration signal data acquired by accumulating at this time as an input quantity into the road surface topography recognition model for recognizing the road surface topography characteristic so as to recognize the road surface topography currently driven by the vehicle; and the road surface terrain recognition model is trained in advance according to the vibration signal data sample.
As an improvement of the above, before inputting the vibration signal data acquired by accumulating this time as an input amount to the road surface topography recognition model for recognition of the road surface topography feature, the method further includes:
performing data processing on the vibration signal data acquired by the accumulation to obtain vibration signal data after the data processing; the data processing includes at least one of: data screening, data cleaning and deletion of vacancy values.
As an improvement of the scheme, the suspension sensors are at least two and are distributed at different places of the vehicle suspension;
after acquiring the vibration signal data of the vehicle suspension, before performing feature recognition on the vibration signal data, the method further comprises:
and storing the acquired vibration signal data in a data matrix form according to the time sequence to obtain a vibration signal data matrix to be subjected to data feature extraction.
As an improvement of the above scheme, when the sequence length of the vibration signal data acquired by the accumulation of this time reaches a preset data truncation width of a sliding window, inputting the vibration signal data acquired by the accumulation of this time as an input quantity into the road surface topography recognition model for recognizing the road surface topography features, includes:
when the sequence length of data in the accumulated acquired vibration signal data matrix reaches the preset data interception width of a sliding window, carrying out PCA (principal component analysis) dimension reduction processing on the vibration signal data matrix to obtain the vibration signal data after dimension reduction;
and inputting the vibration signal data subjected to dimension reduction into a preset road topography recognition model as an input quantity to recognize road topography features.
As an improvement of the above scheme, the road surface topography recognition model is a deep neural network model for recognizing the road surface topography, and the vibration signal data matrix subjected to PCA dimension reduction is obtained after the PCA dimension reduction processing is performed on the vibration signal data matrix.
As an improvement of the above scheme, the road surface topography identification model is an XGBoost model for identifying the road surface topography, and then the vibration signal data vector subjected to PCA dimension reduction is obtained after the PCA dimension reduction processing is performed on the vibration signal data matrix.
As an improvement of the scheme, the data interception width w of the sliding windowiCorresponding to the current vehicle speed v of the vehicle, the formula of the calculation formula is as follows:
wherein a is a preset window deviation value, wiThe width is truncated for the initial data and n is the number of samples of the vibration signal data samples.
In a second aspect, the present invention provides a control apparatus for an in-vehicle refrigerator, comprising:
the data acquisition module is used for acquiring the driving data of the vehicle in the driving process of the vehicle;
the terrain recognition module is used for recognizing the road terrain currently driven by the vehicle by adopting a pre-constructed road terrain recognition model according to the driving data;
the foaming value acquisition module is used for acquiring a beverage foaming degree value corresponding to the identified road topography according to a preset road topography and beverage foaming degree value association table;
the comparison module is used for comparing the foaming degree value of the beverage with a preset foaming threshold value;
and the warning module is used for outputting the use warning information of the vehicle-mounted refrigerator when the foaming degree value of the beverage is greater than the foaming threshold value.
In a third aspect, the invention provides a control device for use in an on-vehicle refrigerator, comprising a processor, a memory and a computer program stored in the memory and configured to be executed by the processor, wherein the processor implements the control method for use in the on-vehicle refrigerator according to any one of the first aspect when executing the computer program.
In a fourth aspect, the present invention provides a computer-readable storage medium, wherein the computer-readable storage medium comprises a stored computer program, and when the computer program runs, the apparatus in which the computer-readable storage medium is located is controlled to execute the control method for the vehicle-mounted refrigerator according to any one of the first aspect.
Compared with the prior art, the embodiment of the invention has the beneficial effects that: the method comprises the steps of acquiring running data of a vehicle in the running process of the vehicle; according to the driving data, adopting a pre-constructed road surface terrain recognition model to recognize the road surface terrain on which the vehicle is currently driven; according to a preset road surface topography and a beverage foaming degree value association table, obtaining a beverage foaming degree value corresponding to the identified road surface topography; comparing the beverage foaming degree value with a preset foaming threshold value; when the foaming degree value of the beverage is larger than the foaming threshold value, the use warning information of the vehicle-mounted refrigerator is output, so that a vehicle user can predict in advance that the phenomenon of spraying can occur when the gas-containing beverage stored in the vehicle-mounted refrigerator is opened according to the use warning information, the gas-containing beverage taken out of the vehicle-mounted refrigerator is prevented from being immediately opened, the problem that the phenomenon of spraying the beverage occurs when the beverage bottle is taken out of the vehicle-mounted refrigerator and opened under different road surface terrains is solved, and the use experience of the vehicle-mounted refrigerator is improved.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a vehicle-mounted refrigerator provided by the present invention;
FIG. 2 is a schematic structural view of a carrier and a flip-flop traction mechanism in a vehicle-mounted refrigerator according to the present invention;
FIG. 3 is a schematic structural diagram of an object carrying member and a turnover traction mechanism in another embodiment of the on-board refrigerator provided by the present invention;
FIG. 4 is a schematic diagram of a related structure of a slip driving assembly in a vehicle refrigerator provided in the present invention;
FIG. 5 is a schematic diagram of a related structure of a sliding driving assembly in another embodiment of the vehicle-mounted refrigerator provided by the invention;
fig. 6 is a flowchart of a control method for use with an in-vehicle refrigerator according to a first embodiment of the present invention;
FIG. 7 is a schematic view of a control apparatus for use in an in-vehicle refrigerator according to a second embodiment of the present invention;
fig. 8 is a schematic diagram of a control apparatus for an in-vehicle refrigerator according to a third embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
For convenience of understanding, the following description is made of an in-vehicle refrigerator according to an embodiment of the present invention:
as shown in fig. 1 to 5, the vehicle-mounted refrigerator is provided with a storage chamber 2, a door (not shown) for opening or closing an opening of the storage chamber 2, and a carrier (not shown) accommodated in the storage chamber 2; the object carrier comprises a driving device (not shown), an object carrier body 3 and a control device (not shown) for controlling the driving device; the driving device comprises a sliding driving component and a motor component 12 controlled by the control device, the driving end of the motor component 12 is connected with the moving end of the sliding driving component, and the commodity shelf body 3 is connected with the fixed end of the sliding driving component, so that the commodity shelf body 3 extends out of or retracts into the storage cavity 2 under the driving of the driving device.
It should be noted that the control device in the embodiment of the present invention may be a hardware controller with a data processing function separately configured for an on-board refrigerator, or may be an integrated functional module in a vehicle control unit VCU. The execution process and the result of the control device can be displayed in the vehicle-mounted information terminal system, and directly or indirectly communicate and interact with the external related control equipment, such as interactive software on a passenger mobile phone, an interactive interface (such as a central control screen) on a vehicle-mounted instrument panel and the like, the synchronous control of the shelf body 3 is correspondingly executed by receiving the control instruction sent by the related program or equipment, and the shelf body 3 is driven to move and extend out of the storage cavity 2 by controlling the sliding driving component; or through controlling the sliding driving component, the shelf body 3 is driven to move and retract into the storage cavity 2.
In the carrier rack in the embodiment of the invention, because the vehicle-mounted refrigerator is generally arranged on the rear seat or the armrest, in order to facilitate the operation control of passengers, the passengers can also operate on the central control screen to control the carrier rack to perform the automatic extending/retracting function, for example, the opening of the refrigeration function of the vehicle-mounted refrigerator and other related functions such as the temperature regulation of the vehicle-mounted refrigerator.
The object carrier in the embodiment can automatically extend out of or retract into the storage cavity of the storage device, so that a passenger can conveniently take articles, the convenience of the passenger is improved, the riding experience of the passenger in the automobile is optimized, and the enjoyable experience with luxury science and technology is provided for the passenger.
The structure of the shelf body 3 can be designed into structures with different shapes according to different vehicle models and the preference of passengers.
The commodity shelf body 3 includes:
the object carrying piece 4 is provided with a cavity for carrying the bottom of the object, and the object carrying piece 4 can rotate relative to the object placing frame body 3;
the moving end of the overturning traction mechanism is hinged with the bottom of the object carrying body 4, and the fixed end of the overturning traction mechanism is fixedly connected with the storage device 1.
Further, in the above embodiment, the rack body 3 further includes a plurality of storage slots 5. It should be noted that the carrying piece 4 and the storage groove 5 are used for storing champagne, red wine, fresh milk, medicines, and other articles, and certainly, different articles can be placed in the carrying piece 4 and the storage groove 5 because the shapes and the functions of the different articles are different, for example, champagne bottles have larger shapes, and the position orientation of the articles needs to be changed (for convenience of taking) in the using process, so champagne bottle articles can be placed in the carrying piece 4; and articles such as wineglasses and the like can be correspondingly placed in the article placing groove 5.
A clamp member or a magnetic component (not shown) is arranged in the article holding groove 5 and used for clamping or sucking the corresponding part of the article, so that the placing stability of the article is improved.
Certainly, considering that the automobile bumps during the driving process, in order to prevent the articles on the article placing rack body 3 from shaking, the article placing rack body 3 in the embodiment of the invention is further provided with the anti-skidding back cushion 6, and the anti-skidding back cushion 6 can play a role in abutting against the articles to be stabilized, so that the placing stability of the articles is improved.
In the embodiment of the invention, the outer part of the article placing rack body 3, the contact part of the article carrying object 4 and the contact part of the article placing groove 5 are all wrapped with soft materials, and the soft materials such as soft rubber/leather and the like can play a good role in shock absorption and protection, have good texture and improve the comfort degree of passengers.
The turning effect of the carrier 4 can be driven by an independent motor, i.e. the turning traction mechanism is a turning driving motor controlled by the control device.
In addition to being driven by a separate motor, in order to achieve the rotation effect of the object carrier 4, the overturning traction mechanism in the embodiment of the present invention may also be implemented by a specific mechanical mechanism, preferably, referring to fig. 2, the overturning traction mechanism includes:
a traction seat 7 located inside the storage device 1;
one end of the traction piece 8 is rotatably arranged on the traction seat 7, and the other end of the traction piece 8 is connected with the bottom of the carrier 4; when the article placing rack body 3 extends out of or retracts into the article storing device 1, the traction piece 8 drives the article carrying piece 4 to turn towards the direction that the article stands upright.
For the convenience of understanding, in the above embodiment, the traction seat 7 may be disposed in the storage cavity 2 to fit the inner sidewall of the storage device 1, of course, the traction seat 7 may also be disposed at a fixed position of the sliding driving component, as long as it is ensured that the position of the traction seat 7 does not change along with the movement of the storage rack body 3. Wherein the pulling member 8 includes, but is not limited to, a pulling rod, a pulling wire, a pulling rope, etc.
In one embodiment, the pulling element 8 includes, as an example, a rotating rod 81 and a connecting rod 82, the rotating rod 81 and the connecting rod 82 cooperate with each other to realize the tilting effect of the object-carrying element 4, specifically, one end of the rotating rod 81 is connected to the traction base 7 and can rotate relative to the traction base 7, the other end of the rotating rod 81 is connected to one end of the connecting rod 82, and the other end of the connecting rod 82 is connected to the bottom of the object-carrying element 4. It can be understood that, when the shelf body 3 is driven by the sliding driving component to move, because the carrier 4 is disposed on the shelf body 3, the carrier 4 will also move (position moves) along with the movement of the shelf body 3, and because the bottom of the carrier 4 is connected with the pulling element, which is connected to the pulling seat 7, the position of the pulling seat 7 is unchanged, so as to move along with the forward extension of the carrier 4, the rotating rod 81 in the pulling element rotates, and because the length of the connecting rod 82 is fixed, when the rotating rod 81 rotates to a certain angle, the connecting rod 82 will generate a traction force to pull the bottom of the carrier 4, at this time, the shelf body 3 moves towards the direction extending out of the storage cavity 2, the carrier 4 also keeps moving forward, therefore, under the action of the traction force, the carrier 4 rotates (overturns), thereby realizing that the shelf body 3 moves, the effect of the overturning of the article inside the carrier element 4.
It should be noted that, besides the above-mentioned mechanical structure, a spring extension (or the mechanical structure shown in fig. 3) may be selected to achieve the effect of turning over the article-carrying member on the shelf body while the shelf body moves, which is determined by the actual product design requirement.
In the embodiment of the invention, the sliding driving component can be selected from any one of the following three embodiments:
as shown in fig. 4, in the first embodiment, the sliding driving assembly includes a fixed base plate 9, a slide rail 10 and a supporting plate 11; the top side of the fixed bottom plate 9 is respectively provided with the moving end and the fixed end; the fixed bottom plate 9 is arranged on the slide rail 10, and the fixed bottom plate 9 can reciprocate along the sliding direction of the slide rail 10; the bottom of the slide rail 10 is provided with the support plate 11.
In a second embodiment, as shown in fig. 5, the sliding driving assembly comprises a chain transmission mechanism 13 and a sliding rail mechanism;
the moving end of the chain transmission mechanism 13 (only the chain of the chain transmission mechanism is shown in the figure) is connected with the driving end of the motor assembly 12; the chain type transmission mechanism 13 is arranged at the bottom of the commodity shelf body 3 and is fixedly connected with the commodity shelf body 3;
the chain transmission mechanism 13 can reciprocate along the sliding direction of the slide rail mechanism, and in this embodiment, the slide rail mechanism includes a slide rail 10 and a support plate 11 disposed at the bottom of the slide rail 10.
In a third embodiment, the slip drive assembly comprises a belt transport mechanism;
the commodity shelf body is connected with the conveying belt of the belt conveying mechanism in a matched mode, so that the commodity shelf body extends out of or retracts into the storage cavity of the storage device along the moving direction of the conveying belt.
It is understood that the sliding driving component in this embodiment may also be a rope driving mechanism, and the shelf body is cooperatively connected with the rope member of the rope driving mechanism, so that the shelf body extends out/retracts into the storage cavity of the storage device along with the movement of the rope member.
Please refer to fig. 6, which is a flowchart illustrating a control method for an in-vehicle refrigerator according to a first embodiment of the present invention, the control method for an in-vehicle refrigerator includes:
s1: acquiring running data of a vehicle in the running process of the vehicle;
s2: according to the driving data, adopting a pre-constructed road surface terrain recognition model to recognize the road surface terrain on which the vehicle is currently driven;
s3: according to a preset road surface topography and a beverage foaming degree value association table, obtaining a beverage foaming degree value corresponding to the identified road surface topography;
s4: comparing the beverage foaming degree value with a preset foaming threshold value;
s5: and when the foaming degree value of the beverage is greater than the foaming threshold value, outputting the use warning information of the vehicle-mounted refrigerator.
In the embodiment of the present invention, the traveling data of the vehicle includes, but is not limited to: the vehicle speed, the acceleration pedal data, the mileage, the energy consumption, and data detected by sensors arranged on a vehicle chassis, such as vibration signal data of a vehicle suspension collected by a suspension sensor during the running of the vehicle, data collected by a vehicle speed sensor, an acceleration sensor, a vehicle height sensor, a roll angle sensor, a rotation angle sensor, data collected by a vehicle speed sensor, a shaft rotation speed sensor, a pressure sensor, and the like arranged on a vehicle transmission during the running of the vehicle, and data collected by a rotation angle sensor, a torque sensor, and a hydraulic pressure sensor arranged on a vehicle steering gear.
It should be noted that the control method used by the vehicle-mounted refrigerator according to the embodiment of the present invention is executed by a control device, and the control device may be a hardware controller with a data processing function separately configured for the vehicle-mounted refrigerator, or an integrated functional module in a vehicle control unit VCU. The execution process and the result of the control device can be displayed in the vehicle-mounted information terminal system, and directly or indirectly communicate and interact with external related control equipment, such as interactive software on a passenger mobile phone, an interactive interface (such as a central control screen) on a vehicle-mounted instrument panel and the like. The control device prestores a road surface topography and beverage foaming degree value correlation table, the road surface topography and beverage foaming degree value correlation table records beverage foaming degree values corresponding to different road surface topographies, and further can record beverage foaming degree values corresponding to different beverages (such as champagne, carbonated beverage, bubble water and the like) under different road surface topographies; after the road topography of the vehicle running at present is identified, the foaming degree value of the beverage corresponding to the road topography of the vehicle running at present can be obtained through table lookup, then the foaming degree value of the beverage obtained through table lookup is compared with a preset foaming threshold value, when the foaming degree value of the beverage is larger than the foaming threshold value, the use warning information of the vehicle-mounted refrigerator is output, and a door cover of the vehicle-mounted refrigerator is locked; otherwise, outputting the usable message of the vehicle-mounted refrigerator and unlocking the door cover of the vehicle-mounted refrigerator. For example, the use warning information is output to the user terminal or the vehicle-mounted screen to remind a user that the beverage is not suitable to be taken out of the vehicle-mounted refrigerator and opened, so that the vehicle user can predict in advance that the phenomenon of spraying can occur when the gas-containing beverage stored in the vehicle-mounted refrigerator is opened according to the use warning information, the gas-containing beverage taken out of the vehicle-mounted refrigerator is prevented from being opened immediately, the problem that the phenomenon of spraying the beverage when the beverage bottle is taken out of the vehicle-mounted refrigerator and opened under different road surface terrains is solved, and the use experience of the vehicle-mounted refrigerator is improved.
In the present example, different frothing thresholds may be defined for different beverages, and in particular, a threshold value of the degree of frothing of the different beverages at which an injection occurs when switched on may be derived by simulation experiments as the frothing threshold for the respective beverage. When beverages are put into the vehicle-mounted refrigerator, the types of the beverages can be directly set through the mobile phone terminal or the vehicle-mounted central control screen, or a camera is arranged on the vehicle-mounted refrigerator, and a picture of the beverages is shot through the camera to carry out feature recognition, so that the types of the beverages can be obtained.
In an alternative embodiment, S2: after the road topography currently driven by the vehicle is identified by adopting a road topography identification model constructed in advance according to the driving data, the method further comprises the following steps:
obtaining refrigerator use control parameters corresponding to the recognized road topography according to a preset road topography and refrigerator use control parameter association table;
according to the refrigerator control parameters, the door cover opening speed and the carrier pushing speed of the vehicle-mounted refrigerator are set, so that when the vehicle-mounted refrigerator is used under the road terrain, the door cover is opened according to the set door cover opening speed, and the carrier is pushed out according to the set carrier pushing speed;
the vehicle-mounted refrigerator is provided with a storage cavity, a door cover for opening or closing an opening of the storage cavity and a carrier accommodated in the storage cavity; the goods carrier comprises a driving device, a goods carrier body and a control device for controlling the driving device; the driving device comprises a sliding driving component and a motor component controlled by the control device, the driving end of the motor component is connected with the moving end of the sliding driving component, and the commodity shelf body is connected with the fixed end of the sliding driving component, so that the commodity shelf body extends out of or retracts into the storage cavity under the driving of the driving device.
The table relating road surface topography to refrigerator use control parameters records different road surface topography and refrigerator use control parameters (such as door cover opening speed and carrier frame push-out speed), so that the door closure can be opened and the carrier rack can be pushed out at a relatively constant speed, for example, when the terrain of the road surface which is currently running is identified to be a gentle road surface, the opening speed of the door cover of the vehicle-mounted refrigerator and the pushing speed of the carrier can be faster, when the terrain of the road surface which is currently running is recognized to be bumpy and hollow, the opening speed of the door cover of the vehicle-mounted refrigerator and the pushing speed of the carrier are required to be slower, so that the phenomenon that the door cover is opened too fast on the bumpy and hollow road surface to damage the fixing structure of the door cover of the vehicle-mounted refrigerator is avoided, thereby affecting the reliability of the door cover driving system and avoiding the problem that the goods on the goods carrier is pushed out too fast to bump and fall.
In an optional embodiment, the running data comprises vibration signal data of a vehicle suspension collected by a suspension sensor during running of the vehicle;
the recognizing the road topography where the vehicle runs currently by adopting a road topography recognition model which is constructed in advance according to the running data comprises the following steps:
comparing the sequence length of the vibration signal data acquired by accumulating this time with the preset data interception width of the sliding window;
when the sequence length of the vibration signal data acquired by accumulating at this time reaches the preset data interception width of the sliding window, inputting the vibration signal data acquired by accumulating at this time as an input quantity into the road surface topography recognition model for recognizing the road surface topography characteristic so as to recognize the road surface topography currently driven by the vehicle; and the road surface terrain recognition model is trained in advance according to the vibration signal data sample.
During the running of the vehicle, the running road surface of the vehicle includes various road surface terrains such as hollow terrains, flat terrains, road block terrains and the like. When the vehicle runs on different road surface terrains, the amplitude of vibration and the frequency of vibration of the suspension of the vehicle are different. Therefore, road surface topography recognition can be performed based on feature extraction and analysis of vibration signals of the vehicle suspension.
In the embodiment of the present invention, the data capture width of the sliding window is preset and can be set as: and the setting of the data interception width can enable the vibration signal data of the corresponding sequence length to be used for identifying the road surface topography. Namely, the data interception width is set, so that the accumulated acquired vibration signal data can be well used for road surface topography characteristics. Therefore, the data interception width cannot be too narrow, and the too narrow data interception width can lead to the situation that the accumulated acquired vibration signal data is too little to be used for road surface topography identification. In addition, the data interception width does not need to be too wide, and the too wide can lead to excessive accumulated acquired vibration signal data and increase the difficulty of road surface terrain identification.
In addition, the road surface terrain recognition model is trained in advance according to the vibration signal data samples, and the training mode can be the existing model training mode, and is not described in detail herein.
In summary, the vibration of the vehicle suspension can accurately reflect the terrain of the driving road surface of the vehicle, and the embodiment of the invention recognizes the terrain of the road surface by sensing the vibration of the vehicle suspension in real time and analyzing the vibration signal of the vehicle suspension, so that the embodiment of the invention can improve the accuracy of the recognition result of the road surface terrain, and compared with a road surface terrain recognition method based on images, the algorithm operation amount of the embodiment of the invention is greatly reduced, thereby avoiding the occupation of excessive calculation resources.
In an optional embodiment, before inputting the vibration signal data acquired by accumulating this time into the road surface topography recognition model as an input to perform recognition of road surface topography features, the method further includes:
performing data processing on the vibration signal data acquired by the accumulation to obtain vibration signal data after the data processing; the data processing includes at least one of: data screening, data cleaning and deletion of vacancy values.
In the embodiment of the invention, the abnormal vibration signal data can be removed by processing the acquired vibration signal data, thereby being beneficial to subsequent data analysis and finally improving the identification result of the road surface topography.
Illustratively, the suspension sensors are at least two, distributed at different locations on the vehicle suspension. For example, there are four suspension sensors distributed on the left side of the suspension of the front wheels of the vehicle (labeled FrntLelv1), the right side of the suspension of the front wheels of the vehicle (labeled FrntRilv1), the left side of the suspension of the rear wheels of the vehicle (labeled relilv 1), and the right side of the suspension of the rear wheels of the vehicle (labeled ReRilv 1).
In an alternative embodiment, the suspension sensor has at least two, distributed in different places of the vehicle suspension;
after acquiring the vibration signal data of the vehicle suspension, before performing feature recognition on the vibration signal data, the method further comprises:
and storing the acquired vibration signal data in a data matrix form according to the time sequence to obtain a vibration signal data matrix to be subjected to data feature extraction.
In an optional embodiment, when the sequence length of the vibration signal data acquired by the accumulation of this time reaches a preset data interception width of a sliding window, inputting the vibration signal data acquired by the accumulation of this time as an input quantity into the road topography recognition model for recognizing the road topography features includes:
when the sequence length of data in the accumulated acquired vibration signal data matrix reaches the preset data interception width of a sliding window, carrying out PCA (principal component analysis) dimension reduction processing on the vibration signal data matrix to obtain the vibration signal data after dimension reduction;
and inputting the vibration signal data subjected to dimension reduction into a preset road topography recognition model as an input quantity to recognize road topography features.
In an optional embodiment, the road surface topography recognition model is a deep neural network model for recognizing the road surface topography, and the vibration signal data matrix subjected to PCA dimension reduction is obtained after the PCA dimension reduction processing is performed on the vibration signal data matrix.
In the embodiment, the PCA dimension reduction processing is performed on the vibration signal data matrix, so that high-dimensional variables possibly having correlation can be synthesized into low-dimensional variables which are linearly independent, and the subsequent feature extraction and identification analysis of the vibration signal data matrix are facilitated, and the accuracy of road terrain identification is improved.
As a specific example, referring to fig. 2, the road surface topography recognition model is a deep neural network model for recognizing the road surface topography, and the vibration signal data matrix is subjected to PCA dimension reduction to obtain a vibration signal data matrix subjected to PCA dimension reduction.
The deep neural network model is trained through a large number of vibration signal data samples in advance, and the specific training mode can refer to the existing deep neural network model training mode.
As another specific example, the road surface topography identification model is an XGBoost model for identifying the road surface topography, and then the vibration signal data vector subjected to PCA dimension reduction is obtained after the PCA dimension reduction processing is performed on the vibration signal data matrix.
Specifically, the target function formula of the XGBoost model is:
wherein the content of the first and second substances,
expressed as summing all k-grain complexity in XGBoost, as a regularization term for the objective function to prevent overfitting of the model. y'iRepresenting the residual value, y, of the last binary treeiRepresenting the predicted value, l is a constant, and i is the tree depth. It can be understood that the target function formula of the XGBoost model is also trained in advance through a large number of vibration signal data samples, and the specific training mode may refer to the existing training mode of the XGBoost model.
In an alternative embodiment, the sliding window has a data truncation width wiCorresponding to the current vehicle speed v of the vehicle, the formula of the calculation formula is as follows:
wherein a is a preset window deviation value, wiThe width is truncated for the initial data and n is the number of samples of the vibration signal data samples.
Specifically, the data interception width of the sliding window is adjusted according to the type of the road surface terrain to be identified, and the data interception width of the window through which different vehicle speeds pass the terrain is required to be collected before a window function is determined; the data interception width of the sliding window is a variable quantity and can be adjusted according to the vehicle speed v. Further, the sliding step S of the sliding window may be selected according to the sampling frequency of the suspension sensor, for example, the sliding step S may be set to coincide with the sampling frequency of the suspension sensor, both being 10 ms.
Illustratively, the method for obtaining vibration signal data samples for training the road surface topography recognition model comprises the following steps:
acquiring a road surface image sequence acquired by a vehicle camera under the working condition that a vehicle runs on a test road, and acquiring vibration signal time sequence data of a vehicle suspension acquired by a suspension sensor under the working condition that the vehicle runs on the test road; the road topography of the test road working condition comprises a target road topography.
When the vehicle runs under the working condition of the test road, the suspension sensor can collect the vibration of the vehicle suspension in real time and generate a vibration signal, and the vibration signal time sequence data can be generated according to the collected vibration signal according to the sequence of the collection time. The road surface topography of the test road working condition can be various, such as hollow road surface topography, road block road surface topography, stone road section road surface topography and the like. And the road surface topography of the test road working condition comprises a target road surface topography.
And carrying out data sliding interception on the vibration signal time sequence data by using a sliding window with a preset data interception width to obtain multiple sections of vibration signal intercepted data.
Similarity calculation is carried out on the multiple sections of vibration signal intercepting data and a preset vibration signal data template corresponding to the target road surface topography to obtain corresponding similarity values;
and judging whether the similarity value is larger than a preset similarity threshold value.
The method comprises the steps of setting a proper similarity threshold value, filtering vibration signal interception data of non-target terrains, and only keeping the vibration signal interception data corresponding to the target terrains.
If so, marking the image of the vibration signal interception data corresponding to the similarity value in the road surface image sequence at the same time stamp as a target road surface terrain image;
and intercepting vibration signal data confirmed by a user based on the target road surface terrain image to serve as the vibration signal data sample.
After labeling the target road surface topography images, the user can verify the target road surface topography images to confirm whether the road surface shot by the target road surface topography images is the target road surface topography. And intercepting data of the vibration signal corresponding to the target road surface terrain image which is confirmed to be positive by the user as a vibration signal data sample for training the road surface terrain recognition model.
Compared with the prior art, the embodiment of the invention has the beneficial effects that:
1. the method comprises the steps of identifying the road topography of the vehicle which is currently running, looking up a table to obtain a beverage foaming degree value corresponding to the road topography of the vehicle which is currently running, outputting use warning information of the vehicle-mounted refrigerator when the beverage foaming degree value is larger than a foaming threshold value to remind a user that the beverage is not suitable to be taken out of the vehicle-mounted refrigerator and opened, and enabling the vehicle user to avoid immediately opening the gas-containing beverage taken out of the vehicle-mounted refrigerator according to the use warning information, so that the problem that the beverage bottle is taken out of the vehicle-mounted refrigerator and opened to cause a beverage spraying phenomenon under different road topography is solved, and the use experience of the vehicle-mounted refrigerator is improved.
2. Different refrigerator use control parameters are set for different road terrains, so that when a vehicle runs on different road terrains, the door cover can be opened and the carrier can be pushed out at a relatively stable speed, the problem that the door cover driving system is influenced by the fact that the door cover is opened too fast on bumpy and hollow roads to enable the fixing structure of the door cover of the vehicle-mounted refrigerator to be damaged is avoided, and the problem that the articles on the carrier are pushed out too fast to bump and fall is solved.
Referring to fig. 7, a second embodiment of the present invention provides a control device for a vehicle-mounted refrigerator, including:
the data acquisition module 1 is used for acquiring the driving data of the vehicle in the driving process of the vehicle;
the terrain recognition module 2 is used for recognizing the road terrain currently driven by the vehicle by adopting a road terrain recognition model which is constructed in advance according to the driving data;
the foaming value acquisition module 3 is used for acquiring a beverage foaming degree value corresponding to the identified road topography according to a preset road topography and beverage foaming degree value association table;
the comparison module 4 is used for comparing the foaming degree value of the beverage with a preset foaming threshold value;
and the warning module 5 is used for outputting the use warning information of the vehicle-mounted refrigerator when the foaming degree value of the beverage is greater than the foaming threshold value.
In an alternative embodiment, the apparatus further comprises:
the parameter acquisition module is used for acquiring refrigerator use control parameters corresponding to the recognized road topography according to a preset road topography and refrigerator use control parameter association table;
the parameter setting module is used for setting the door cover opening speed and the carrier pushing speed of the vehicle-mounted refrigerator according to the refrigerator control parameters so as to open the door cover according to the set door cover opening speed and push the carrier out according to the set carrier pushing speed when the vehicle-mounted refrigerator is used under the road terrain;
the vehicle-mounted refrigerator is provided with a storage cavity, a door cover for opening or closing an opening of the storage cavity and a carrier accommodated in the storage cavity; the goods carrier comprises a driving device, a goods carrier body and a control device for controlling the driving device; the driving device comprises a sliding driving component and a motor component controlled by the control device, the driving end of the motor component is connected with the moving end of the sliding driving component, and the commodity shelf body is connected with the fixed end of the sliding driving component, so that the commodity shelf body extends out of or retracts into the storage cavity under the driving of the driving device.
In an optional embodiment, the running data comprises vibration signal data of a vehicle suspension collected by a suspension sensor during running of the vehicle;
the terrain recognition module includes:
the data length comparison unit is used for comparing the sequence length of the accumulated acquired vibration signal data with the preset data interception width of the sliding window;
the characteristic identification unit is used for inputting the vibration signal data acquired by accumulating at this time into the road surface terrain identification model as an input quantity to identify road surface terrain characteristics so as to identify the road surface terrain on which the vehicle runs currently when the sequence length of the vibration signal data acquired by accumulating at this time reaches the preset data interception width of the sliding window; and the road surface terrain recognition model is trained in advance according to the vibration signal data sample.
In an alternative embodiment, the terrain identification module further comprises:
the data processing unit is used for carrying out data processing on the vibration signal data acquired by the accumulation to obtain vibration signal data after the data processing; the data processing includes at least one of: data screening, data cleaning and deletion of vacancy values.
In an alternative embodiment, the suspension sensor has at least two, distributed in different places of the vehicle suspension;
the terrain identification module further comprises:
and the data storage unit is used for storing the acquired vibration signal data in a data matrix form according to the time sequence to obtain a vibration signal data matrix to be subjected to data feature extraction.
In an alternative embodiment, the feature recognition unit includes:
the dimension reduction subunit is used for carrying out PCA dimension reduction processing on the vibration signal data matrix when the sequence length of the data in the obtained vibration signal data matrix accumulated this time reaches the preset data interception width of the sliding window, so as to obtain the vibration signal data after dimension reduction;
and the data input subunit is used for inputting the vibration signal data subjected to the dimension reduction into a preset road topography recognition model as an input quantity to recognize road topography features.
In an optional embodiment, the road surface topography recognition model is a deep neural network model for recognizing the road surface topography, and the vibration signal data matrix subjected to PCA dimension reduction is obtained after the PCA dimension reduction processing is performed on the vibration signal data matrix.
As an improvement of the above scheme, the road surface topography identification model is an XGBoost model for identifying the road surface topography, and then the vibration signal data vector subjected to PCA dimension reduction is obtained after the PCA dimension reduction processing is performed on the vibration signal data matrix.
In an alternative embodiment, the sliding window has a data truncation width wiCorresponding to the current vehicle speed v of the vehicle, the formula of the calculation formula is as follows:
wherein a is a preset window deviation value, wiThe width is truncated for the initial data and n is the number of samples of the vibration signal data samples.
Referring to fig. 8, a schematic diagram of a control device for an in-vehicle refrigerator according to a third embodiment of the present invention is shown. As shown in fig. 8, the control apparatus for use in the in-vehicle refrigerator includes: at least one processor 11, such as a CPU, at least one network interface 14 or other user interface 13, a memory 15, at least one communication bus 12, the communication bus 12 being used to enable connectivity communications between these components. The user interface 13 may optionally include a USB interface, and other standard interfaces, wired interfaces. The network interface 14 may optionally include a Wi-Fi interface as well as other wireless interfaces. The memory 15 may comprise a high-speed RAM memory, and may also include a non-volatile memory (non-volatile memory), such as at least one disk memory. The memory 15 may optionally comprise at least one memory device located remotely from the aforementioned processor 11.
In some embodiments, memory 15 stores the following elements, executable modules or data structures, or a subset thereof, or an expanded set thereof:
an operating system 151, which contains various system programs for implementing various basic services and for processing hardware-based tasks;
and (5) a procedure 152.
Specifically, the processor 11 is configured to call the program 152 stored in the memory 15, and execute the control method used by the vehicle-mounted refrigerator according to the above-mentioned embodiment, for example, step S1 shown in fig. 6. Alternatively, the processor implements the functions of the modules/units in the above device embodiments when executing the computer program, such as a data acquisition module.
Illustratively, the computer program may be partitioned into one or more modules/units that are stored in the memory and executed by the processor to implement the invention. The one or more modules/units may be a series of computer program instruction segments capable of performing specific functions, which are used to describe the execution process of the computer program in the control apparatus used in the in-vehicle refrigerator.
The control device used by the vehicle-mounted refrigerator can be a desktop computer, a notebook computer, a palm computer, a cloud server and other computing devices. The control device used by the vehicle-mounted refrigerator can comprise, but is not limited to, a processor and a memory. It will be understood by those skilled in the art that the schematic diagram is merely an example of a control apparatus for use with an in-vehicle refrigerator, and does not constitute a limitation of a control apparatus for use with an in-vehicle refrigerator, and may include more or fewer components than those shown, or some of the components may be combined, or different components.
The Processor 11 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. The processor 11 is a control center of the control device used by the vehicle-mounted refrigerator, and various interfaces and lines are used for connecting various parts of the control device used by the whole vehicle-mounted refrigerator.
The memory 15 may be used to store the computer programs and/or modules, and the processor 11 implements various functions of the control apparatus used by the in-vehicle refrigerator by running or executing the computer programs and/or modules stored in the memory and calling data stored in the memory. The memory 15 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 15 may include high speed random access memory, and may also include non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), at least one magnetic disk storage device, a Flash memory device, or other volatile solid state storage device.
Wherein, the control device integrated module/unit used for the vehicle-mounted refrigerator can be stored in a computer readable storage medium if it is implemented in the form of a software functional unit and sold or used as a separate product. Based on such understanding, all or part of the flow of the method according to the embodiments of the present invention may also be implemented by a computer program, which may be stored in a computer-readable storage medium, and when the computer program is executed by a processor, the steps of the method embodiments may be implemented. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution medium, and the like. It should be noted that the computer readable medium may contain content that is subject to appropriate increase or decrease as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, computer readable media does not include electrical carrier signals and telecommunications signals as is required by legislation and patent practice.
A fourth embodiment of the present invention provides a computer-readable storage medium, which includes a stored computer program, wherein when the computer program runs, an apparatus in which the computer-readable storage medium is located is controlled to execute the control method for an in-vehicle refrigerator according to any one of the first embodiments.
It should be noted that the above-described device embodiments are merely illustrative, where the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. In addition, in the drawings of the embodiment of the apparatus provided by the present invention, the connection relationship between the modules indicates that there is a communication connection between them, and may be specifically implemented as one or more communication buses or signal lines. One of ordinary skill in the art can understand and implement it without inventive effort.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (12)
1. A control method for an on-vehicle refrigerator is characterized by comprising the following steps:
acquiring running data of a vehicle in the running process of the vehicle;
according to the driving data, adopting a pre-constructed road surface terrain recognition model to recognize the road surface terrain on which the vehicle is currently driven;
according to a preset road surface topography and a beverage foaming degree value association table, obtaining a beverage foaming degree value corresponding to the identified road surface topography;
comparing the beverage foaming degree value with a preset foaming threshold value;
and when the foaming degree value of the beverage is greater than the foaming threshold value, outputting the use warning information of the vehicle-mounted refrigerator.
2. The control method for use in an in-vehicle refrigerator according to claim 1, wherein, after identifying the road topography on which the vehicle is currently traveling using a road topography identification model constructed in advance based on the traveling data, further comprising:
obtaining refrigerator use control parameters corresponding to the recognized road topography according to a preset road topography and refrigerator use control parameter association table;
according to the refrigerator control parameters, the door cover opening speed and the carrier pushing speed of the vehicle-mounted refrigerator are set, so that when the vehicle-mounted refrigerator is used under the road terrain, the door cover is opened according to the set door cover opening speed, and the carrier is pushed out according to the set carrier pushing speed;
the vehicle-mounted refrigerator is provided with a storage cavity, a door cover for opening or closing an opening of the storage cavity and a carrier accommodated in the storage cavity; the goods carrier comprises a driving device, a goods carrier body and a control device for controlling the driving device; the driving device comprises a sliding driving component and a motor component controlled by the control device, the driving end of the motor component is connected with the moving end of the sliding driving component, and the commodity shelf body is connected with the fixed end of the sliding driving component, so that the commodity shelf body extends out of or retracts into the storage cavity under the driving of the driving device.
3. The control method for the in-vehicle refrigerator according to claim 1, wherein the traveling data includes vibration signal data of the vehicle suspension collected by the suspension sensor during the traveling of the vehicle;
the recognizing the road topography where the vehicle runs currently by adopting a road topography recognition model which is constructed in advance according to the running data comprises the following steps:
comparing the sequence length of the vibration signal data acquired by accumulating this time with the preset data interception width of the sliding window;
when the sequence length of the vibration signal data acquired by accumulating at this time reaches the preset data interception width of the sliding window, inputting the vibration signal data acquired by accumulating at this time as an input quantity into the road surface topography recognition model for recognizing the road surface topography characteristic so as to recognize the road surface topography currently driven by the vehicle; and the road surface terrain recognition model is trained in advance according to the vibration signal data sample.
4. The control method for the on-vehicle refrigerator according to claim 3, wherein before inputting the vibration signal data obtained by accumulating this time as an input amount to the road surface topography recognition model for recognition of the road surface topography feature, the method further comprises:
performing data processing on the vibration signal data acquired by the accumulation to obtain vibration signal data after the data processing; the data processing includes at least one of: data screening, data cleaning and deletion of vacancy values.
5. The control method for the vehicle-mounted refrigerator according to claim 3, wherein the suspension sensors are at least two and are distributed at different places of the vehicle suspension;
after acquiring the vibration signal data of the vehicle suspension, before performing feature recognition on the vibration signal data, the method further comprises:
and storing the acquired vibration signal data in a data matrix form according to the time sequence to obtain a vibration signal data matrix to be subjected to data feature extraction.
6. The control method for the vehicle-mounted refrigerator according to claim 5, wherein when the sequence length of the vibration signal data acquired by the accumulation reaches a preset data interception width of a sliding window, the vibration signal data acquired by the accumulation is input into the road topography recognition model as an input quantity to recognize the road topography features, and the method comprises the following steps:
when the sequence length of data in the accumulated acquired vibration signal data matrix reaches the preset data interception width of a sliding window, carrying out PCA (principal component analysis) dimension reduction processing on the vibration signal data matrix to obtain the vibration signal data after dimension reduction;
and inputting the vibration signal data subjected to dimension reduction into a preset road topography recognition model as an input quantity to recognize road topography features.
7. The control method for the vehicle-mounted refrigerator according to claim 6, wherein the road surface topography recognition model is a deep neural network model for recognizing the road surface topography, and the vibration signal data matrix subjected to PCA dimension reduction is obtained after the vibration signal data matrix is subjected to PCA dimension reduction.
8. The control method for the vehicle-mounted refrigerator according to claim 6, wherein the road surface topography recognition model is an XGboost model for recognizing the road surface topography, and a vibration signal data vector subjected to PCA dimension reduction is obtained after the vibration signal data matrix is subjected to PCA dimension reduction.
9. The control method for use in an in-vehicle refrigerator of claim 3, wherein the sliding window has a data cut-off width wiCorresponding to the current vehicle speed v of the vehicle, the formula of the calculation formula is as follows:
wherein a is a preset window deviation value, wiThe width is truncated for the initial data and n is the number of samples of the vibration signal data samples.
10. A control device for an on-vehicle refrigerator, comprising:
the data acquisition module is used for acquiring the driving data of the vehicle in the driving process of the vehicle;
the terrain recognition module is used for recognizing the road terrain currently driven by the vehicle by adopting a pre-constructed road terrain recognition model according to the driving data;
the foaming value acquisition module is used for acquiring a beverage foaming degree value corresponding to the identified road topography according to a preset road topography and beverage foaming degree value association table;
the comparison module is used for comparing the foaming degree value of the beverage with a preset foaming threshold value;
and the warning module is used for outputting the use warning information of the vehicle-mounted refrigerator when the foaming degree value of the beverage is greater than the foaming threshold value.
11. A control apparatus for use with an in-vehicle refrigerator, comprising a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, the processor implementing a control method for use with an in-vehicle refrigerator as claimed in any one of claims 1 to 9 when executing the computer program.
12. A computer-readable storage medium, characterized in that the computer-readable storage medium comprises a stored computer program, wherein the computer program, when running, controls an apparatus in which the computer-readable storage medium is located to perform the control method for use by the in-vehicle refrigerator according to any one of claims 1-9.
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| PCT/CN2022/073687 WO2022166678A1 (en) | 2021-02-03 | 2022-01-25 | Vehicle-mounted storage device, vehicle-mounted refrigerator and automobile |
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| WO2022166678A1 (en) * | 2021-02-03 | 2022-08-11 | 华人运通(江苏)技术有限公司 | Vehicle-mounted storage device, vehicle-mounted refrigerator and automobile |
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| CN113147548B (en) | 2022-08-16 |
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