CN114415812A - Vehicle-mounted tablet personal computer with safe voltage protection - Google Patents
Vehicle-mounted tablet personal computer with safe voltage protection Download PDFInfo
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- CN114415812A CN114415812A CN202210086913.4A CN202210086913A CN114415812A CN 114415812 A CN114415812 A CN 114415812A CN 202210086913 A CN202210086913 A CN 202210086913A CN 114415812 A CN114415812 A CN 114415812A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/30—Means for acting in the event of power-supply failure or interruption, e.g. power-supply fluctuations
- G06F1/305—Means for acting in the event of power-supply failure or interruption, e.g. power-supply fluctuations in the event of power-supply fluctuations
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1613—Constructional details or arrangements for portable computers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E60/10—Energy storage using batteries
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Abstract
The invention relates to the technical field of vehicle-mounted application, and discloses a vehicle-mounted tablet personal computer with safe voltage protection, which comprises a body, wherein the back surface of the body is connected with a rear cover in a clamping manner, a heat dissipation sticker is embedded at the top end of the back surface of the body, a hole groove is formed in the bottom end of the back surface of the body, a wide voltage module is clamped in an inner cavity of the hole groove, moving structures are arranged in the middle parts of the front end and the rear end of the inner cavity of the hole groove, and the moving structures are matched with the wide voltage module. This on-vehicle panel computer with safe voltage protection, through the setting of variable resistance, control system in the wide compression module can change the resistance value of variable resistance according to the voltage at variable resistance both ends, makes the electric current of flowing through the output line and this computer adaptation, should remain stable, prevents that this computer from being in the state of excessive pressure for a long time, and when cutting off the power supply suddenly with the adapter of this computer adaptation, the lithium cell in the wide compression module can supply power for this computer, the use of this computer of being convenient for.
Description
Technical Field
The invention relates to the technical field of vehicle-mounted application, in particular to a vehicle-mounted tablet personal computer with safe voltage protection.
Background
With the rapid development of automotive electronic products and the increasing demand of people for vehicle-mounted information terminals, currently, vehicle-mounted multimedia products become the focus of attention of the whole electronic industry, and gradually become the research and development focus of the automotive electronic industry for vehicle-mounted information multimedia products integrating multiple information technologies. Currently, tablet computers rise rapidly due to mobility and success superiority.
For a tablet personal computer, rated voltage exists, but in practice, the tablet personal computer cannot be completely guaranteed to work under the rated voltage, and works in a range near the rated range, and when the tablet personal computer is charged by using a standard adapter, due to the fact that an automobile has large voltage fluctuation in the starting and running processes, the phenomenon that the tablet personal computer is restarted or powered off due to unstable voltage influences the use of a user, and therefore the vehicle-mounted tablet personal computer with the safe voltage protection is provided.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the vehicle-mounted tablet personal computer with the safe voltage protection function, which has the advantages of enabling the tablet personal computer to work stably and the like due to the wide-voltage power supply module, and solves the problems in the background technology.
The invention provides the following technical scheme: the utility model provides an on-vehicle panel computer with safe voltage protection, includes the body, the back joint of body has the back lid, the top at the body back is inlayed and is had the heat dissipation subsides, the bottom at the body back is equipped with the hole groove, the inner chamber joint in hole groove has the wide module of pressing, the middle part at both ends all is equipped with the removal structure around the hole inslot inner chamber, remove structure and wide module adaptation of pressing.
The movable structure includes initiative lead screw and driven lead screw, initiative lead screw and driven lead screw respectively with the middle part swing joint of hole groove inner chamber both sides, just the driven lead screw of initiative lead screw flushes with the back of body, the equal swing joint in bottom of initiative lead screw and driven lead screw has the gear, and two gears pass through the drive belt transmission and are connected, drive belt and body swing joint, the equal threaded connection in outer lane at initiative lead screw and driven lead screw both ends has the ejector pad, and through the setting of movable structure, the rotation of initiative lead screw can make the position of two ejector pads change, and the ejector pad can drive wide pressure module and remove, the taking out or the installation of the wide pressure module of being convenient for.
Preferably, the wide pressure module includes box body and wiring groove, the top joint of box body inner chamber has the lid, the middle part at box body both ends all is connected with the connecting block, one side of box body inner chamber is equipped with the control box, is equipped with control system and lithium cell in the control box, the top of control box is equipped with the input line, the constant resistance who is connected with the input line, the variable resistance who is connected with the constant resistance other end, the output line of being connected with the variable resistance other end, charging wire, voltmeter and camera.
Preferably, the wiring groove is inlayed in the middle part of body bottom, just the wiring groove is with the joint adaptation of adapter, the material of wiring groove is metal copper, and the wiring groove can transmit current.
Preferably, the two sides of the top end of the box cover are provided with the convex blocks, so that the box cover can be conveniently taken out and installed.
Preferably, two through-holes on the box body, the other end of input line and charging wire passes through the through-hole and contacts with the wiring groove, inlay at the top of hole groove inner chamber and have the copper sheet the other end of output line runs through the lateral wall of box body and contacts with the copper sheet, and the electric current in the adapter can flow through wide pressure module
Preferably, the voltmeter passes through the electric wire to be connected with constant resistance's both ends, the camera is connected with the top of box inner chamber, just the camera is located the voltmeter dial plate directly over, charging wire, electric control switch and lithium cell pass through the connection of electric lines, through the setting of camera and voltmeter, and control system in the broad compression module can real-time detection variable resistance both ends voltage, is convenient for adjust variable resistance's resistance value.
Preferably, the middle part of variable resistance inner chamber is equipped with the connecting rod that the winding has the copper wire, the shift ring has been cup jointed in the outer lane activity of connecting rod, the inner wall of shift ring is inlayed and is had the conductor wire the same with the copper wire diameter, conductor wire and copper wire contact, the front side of variable resistance inner chamber is connected with the rotation motor, the output shaft end-to-end connection who rotates the motor has the rotation lead screw, the one end and the rotation lead screw threaded connection of shift ring, the rear side of variable resistance inner chamber is equipped with the current conducting plate, the other end and the current conducting plate contact of conductor wire, just the input line is connected with the one end of copper wire, and the output line is connected with the one end of current conducting plate, and through variable resistance's setting, the electric current of flowing through the output line can remain stable, the work of this computer of being convenient for.
Preferably, the control system is configured to control the camera to acquire a first image of the dial plate of the voltmeter;
acquiring the first image, performing edge enhancement on the first image, extracting a second image of the voltmeter nameplate from the enhanced first image, and inputting the second image into a preset convolution training model;
acquiring a pixel value corresponding to each pixel point in the second image, regarding the pixel points with the same pixel value as a class, and inputting the class into a corresponding convolution layer in the preset convolution training model;
meanwhile, establishing a first corresponding relation between the pixel points and a second image and a second corresponding relation between the convolution layer and the pixel points;
respectively eliminating noise points contained in corresponding pixel points in the convolution layers to obtain corresponding target pixel points, and then performing convolution processing on the target pixel points to obtain corresponding pixel point outlines on each convolution layer;
inputting the outline of the corresponding pixel point on each convolution layer to the second image based on the first corresponding relation and the second corresponding relation, and establishing a detection image;
carrying out gray level processing on the inspection image, and respectively obtaining a gray level outline corresponding to each pixel point outline;
traversing each gray contour by using a preset mark contour to obtain a first gray contour belonging to a mark in the gray contours;
obtaining the model of the voltmeter according to a preset mark-model list;
based on the model, acquiring a first model corresponding to the voltmeter from a preset model-model list;
acquiring a first angle between the voltmeter pointer and the 0 scale mark in the first image as a target angle;
rotating the simulation pointer in the first model by a target angle, and reading a first voltage value in the first model;
and acquiring the relation between the first voltage value and a standard voltage value range, acquiring the minimum voltage difference value between the first voltage value and the standard voltage value range when the first voltage value is not in the standard voltage value range, and generating a voltage regulation instruction for voltage regulation.
Preferably, the control system is further configured to establish a first adjustment frame in accordance with the minimum voltage difference specification based on the voltage adjustment instruction;
obtaining the residual adjusting range of the variable resistor based on the current resistance of the variable resistor, generating a first adjusting parameter and transmitting the first adjusting parameter to the adjusting frame;
acquiring the available power supply time of the lithium battery based on the current electric quantity of the lithium battery, and generating a second adjusting parameter;
inputting the first adjusting parameter and the second adjusting parameter into each adjusting layer of the first adjusting frame, and establishing corresponding inspection adjusting layers;
adjusting the inspection adjusting layer to a specified height within a preset time by using the first adjusting parameter, and acquiring a to-be-processed area which fluctuates on the inspection adjusting layer in the adjusting process;
when a to-be-processed area exists on the inspection adjusting layer, acquiring the fluctuation intensity of the to-be-processed area, and establishing a corresponding to-be-processed list;
extracting the area to be processed, and acquiring a first voltage and a second voltage corresponding to the head end and the tail end of the area to be processed based on the list to be processed;
establishing a step from the first voltage to the second voltage by using the second adjusting parameter, and adjusting the voltage of the area to be processed to the second voltage by using the step;
wherein adjusting the test adjustment layer with a first adjustment parameter is equivalent to adjusting the test adjustment layer with the variable resistance, and adjusting the test adjustment layer with a second adjustment parameter is equivalent to adjusting the test layer with a battery;
and respectively acquiring the adjusting process corresponding to each inspection adjusting layer, establishing an adjusting scheme, and adjusting the voltage according to the adjusting scheme.
Compared with the prior art, the invention has the following beneficial effects:
1. this on-vehicle panel computer with safe voltage protection, through the setting that removes the structure, when the user rotated the initiative lead screw, the initiative lead screw can drive driven lead screw through the drive belt and rotate, and the cooperation of initiative lead screw and driven lead screw is used, can make the ejector pad of threaded connection with it remove at its place direction, and the ejector pad can drive the connecting block removal of contact with it, is convenient for the wide joint and the separation of pressing module and hole groove.
2. This on-vehicle panel computer with safe voltage protection, through the setting of variable resistance, control system in the wide compression module can change the resistance value of variable resistance according to the voltage at variable resistance both ends, makes the electric current of flowing through the output line and this computer adaptation, should remain stable, prevents that this computer from being in the state of excessive pressure for a long time, and when cutting off the power supply suddenly with the adapter of this computer adaptation, the lithium cell in the wide compression module can supply power for this computer, the use of this computer of being convenient for.
3. This on-vehicle panel computer with safe voltage protection through the image of gathering the voltmeter, recycles the model that image processing technique obtained the voltmeter, and then utilizes the current voltage of the model analysis voltmeter that corresponds, so can obtain current voltage fast, utilizes the model analysis voltage value can obtain accurate voltage value moreover, has avoided the error that the people's eye observed, also does the basis for the input voltage of follow-up regulation flat computer simultaneously.
4. According to the vehicle-mounted tablet personal computer with the safe voltage protection function, the power supply voltage is synchronously adjusted through the variable resistor and the storage battery, when voltage adjustment is carried out, voltage fluctuation generated in the adjustment process needs to be considered, the remaining adjustable range of the variable resistor needs to be noticed, so that the power supply voltage is adjusted in stages by utilizing the variable resistor and the storage battery, normal work of the tablet personal computer can be guaranteed, the power supply voltage can be stably adjusted, and the tablet personal computer is prevented from being damaged by voltage fluctuation.
Drawings
FIG. 1 is an exploded view of the structure of the present invention;
FIG. 2 is a schematic view of a structural body of the present invention;
FIG. 3 is a schematic view of the contact between the wide-width compression module and the moving structure according to the present invention;
FIG. 4 is an exploded view of a structural wide compression module according to the present invention;
FIG. 5 is a schematic diagram of the variable resistor of the present invention.
In the figure: 1. a body; 2. a heat dissipation patch; 3. a wide-pressure module; 4. a rear cover; 5. a hole groove; 7. a moving structure; 8. a copper sheet; 9. a box body; 10. a box cover; 11. a driven screw rod; 12. a transmission belt; 13. an active screw rod; 14. a push block; 15. connecting blocks; 16. a wiring slot; 18. a control box; 19. a charging wire; 20. an electric control switch; 21. an input line; 22. a variable resistor; 23. a camera; 24. a voltmeter; 25. a connecting rod; 26. a rotation motor; 27. rotating the screw rod; 28. a moving ring; 29. a conductive plate; 30. and (6) an output line.
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.
Referring to fig. 1 and 2, a vehicle-mounted tablet personal computer with safe voltage protection comprises a body 1, a back cover 4 is clamped on the back of the body 1, a heat dissipation sticker 2 is embedded on the top of the back of the body 1, the heat dissipation efficiency of the body 1 in the working process is accelerated through the arrangement of the heat dissipation sticker 2, the daily wages of devices in the body 1 are facilitated, a hole slot 5 is arranged at the bottom of the back of the body 1, a copper sheet 8 is connected to the top of an inner cavity of the hole slot 5, a wide-pressure module 3 is clamped in the inner cavity of the hole slot 5, the temperature of input voltage of the body 1 can be guaranteed through the arrangement of the wide-pressure module 3, the body 1 is kept in a stable working state, the body 1 is convenient to use, moving structures 7 are arranged in the middle parts of the front end and the rear end of the inner cavity of the hole slot 5, the moving structures 7 are matched with the wide-pressure module 3, the wide-pressure module 3 can be taken out before use through the arrangement of the moving structures 7, a buzzer is embedded on one side of the top of the body 1, through the setting of buzzer, under the circumstances of outage of body 1, the wide voltage module 3 can be for the buzzer circular telegram, makes the buzzer sound, reminds the user that the panel computer is in the state of outage.
The moving structure 7 comprises a driving screw 13 and a driven screw 11, the driving screw 13 and the driven screw 11 are respectively movably connected with the middle parts of the two sides of the inner cavity of the hole groove 5, the driven screw 11 of the driving screw 13 is flush with the back surface of the body 1, the top of the driving screw 13 is provided with a straight groove, the driving screw 13 is convenient for a user to rotate through the arrangement of the straight groove, the bottoms of the driving screw 13 and the driven screw 11 are respectively and movably connected with a gear, the two gears are in transmission connection through a transmission belt 12, the driven screw 11 can be driven to rotate through the rotation of the driving screw 13 through the arrangement of the gear and the transmission belt 12, the rotating directions of the driving screw and the driven screw 11 are the same, the transmission belt 12 is movably connected with the body 1, the outer rings at the two ends of the driving screw 13 and the driven screw 11 are respectively in threaded connection with a push block 14, the rotation of the driving screw 13 and the driven screw 11 can enable the push block 14 in threaded connection with the driving screw to move in the direction where the driving screw 13 and the driven screw 11 are located, the pushing block 14 can push the wide-width module 3 to move, so that the wide-width module 3 can be taken out conveniently.
Please refer to fig. 3 and 4, the wide-pressure module 3 includes a box body 9 and a wiring groove 16, a box cover 10 is fastened on the top end of the inner cavity of the box body 9, bumps are disposed on both sides of the top end of the box cover 10, and are convenient for the fastening or separation of the box cover 10 and the box body 9, connecting blocks 15 are connected to the middle portions of both ends of the box body 9, when the wide-pressure module 3 is fastened with the inner cavity of the hole groove 5, the box cover 10 is flush with the back of the body 1, and the connecting blocks 15 are in contact with the pushing blocks 14, the moving structure 7 can drive the wide-pressure module 3 to move, the wiring groove 16 is embedded in the middle portion of the bottom of the body 1, and the wiring groove 16 is adapted to the adapter, the material of the wiring groove 16 is copper, when the box body 9 is fastened with the hole groove 5, the wiring groove 16 is in contact with the box body 9, and current can be transmitted through the arrangement of the wiring groove 16.
One side of the inner cavity of the box body 9 is provided with a control box 18, a control system and a lithium battery are arranged in the control box 18, the control system can control the work of devices in the wide-pressure module, the lithium battery can provide electric energy for the devices in the wide-pressure module 3 and the body 1, one side of the bottom of the inner cavity of the box body 9 is inlaid with an input line 21 and a charging wire 19, the input line 21, the charging wire 19 and the wiring groove 16 can be in a structure, current can flow into the input line 21 and the charging wire 19 through the wiring groove 16, the other end of the charging wire 19 is connected with the lithium battery, when the adapter is connected with the computer, the lithium battery can be charged, the lithium battery is convenient to use, the other end of the input line 21 is connected with one end of a constant resistor, the other end of the constant resistor is connected with one end of a variable resistor 22, the current flowing through the output line 30 can be controlled through the setting of the variable resistor 22, and the current flowing through the output line 30 can be kept stable, the other end of the variable resistor 22 is connected with an output line 30, the other end of the output line 30 is in contact with the copper sheet 8, the computer can be in a power-on state through the arrangement of the output line 30, the lithium battery is connected with the output line 30 through the electric control switch 20, when no current flows in the input line 21, namely the computer is in a power-off state, the electric control switch 20 is controlled to be closed by the control system, the lithium battery supplies power to the tablet, the tablet computer can work conveniently, and the electric control switch 20 and the variable resistor 22 are both located at the top of the control box 18.
The opposite side at control box 18 top is equipped with voltmeter 24, one side on box body 9 inner chamber top is equipped with camera 23, camera 23 is located voltmeter 24 directly over, voltmeter 24 electric wire is connected with constant resistance's both ends, setting through voltmeter 24, can the voltage at real-time detection constant resistance both ends, the resistance of control system regulation and control variable resistance 22 of being convenient for, the electric current that makes output line 30 is in dynamic balance state, setting through camera 23, camera 23 can detect the reading of voltmeter, and transmit the registration that detects for control system in, control system judges the volume that variable resistance 22's resistance value changes.
Referring to fig. 5, a connecting rod 25 wound with a copper wire is disposed in the middle of an inner cavity of the variable resistor 22, a moving ring 28 is movably sleeved on an outer ring of the connecting rod 25, a conductive wire with the same diameter as the copper wire is embedded in an inner wall of the moving ring 28, the conductive wire contacts with the copper wire, a rotating motor 26 is connected to the front side of the inner cavity of the variable resistor 22, a rotating lead screw 27 is connected to the end of an output shaft of the rotating motor 26, one end of the moving ring 28 is in threaded connection with the rotating lead screw 27, the rotating lead screw 27 connected to the rotating motor 26 can be driven to rotate by the rotation of the rotating lead screw 27, the moving ring 28 moves on the variable resistor 22, a conductive plate 29 is disposed on the rear side of the inner cavity of the variable resistor 22, the conductive plate and the conductive plate are both made of copper, the other end of the conductive wire contacts with the conductive plate 29, the input line 21 is connected with one end of the copper wire, and the output line 30 is connected with one end of the conductive plate 29, the current on the input line flows through the conductive line, the conductive plate 29 and the output line 30, and changing the distance between the conductive line and the output line 30 changes the resistance of the variable resistor 22.
The working principle is as follows: during the use, when adapter and wiring groove 16 joint, the electric current in the adapter is along the input line 21 constant resistance that flows through, voltmeter 24 shows the magnitude of voltage at constant resistance both ends, the appearance of making a video recording is the voltage number that voltmeter 24 shows, transmit the control system in the wide pressure module 3, control system in the wide pressure module 3 adjusts variable resistance 22's resistance value according to the demand, make the electric current that flows through output line 30 remain stable, and can satisfy the demand of this computer, when the adapter needs the outage, control system control lithium cell charges for this computer, and bee calling organ makes a sound, remind the user.
The control system is further used for establishing a first adjusting frame which is consistent with the minimum voltage difference specification based on the voltage adjusting instruction;
acquiring a residual adjusting range of the variable resistor 22 based on the current resistance of the variable resistor 22, generating a first adjusting parameter and transmitting the first adjusting parameter to the adjusting frame;
acquiring the available power supply time of the lithium battery based on the current electric quantity of the lithium battery, and generating a second adjusting parameter;
inputting the first adjusting parameter and the second adjusting parameter into each adjusting layer of the first adjusting frame, and establishing corresponding inspection adjusting layers;
adjusting the inspection adjusting layer to a specified height within a preset time by using the first adjusting parameter, and acquiring a to-be-processed area which fluctuates on the inspection adjusting layer in the adjusting process;
when a to-be-processed area exists on the inspection adjusting layer, acquiring the fluctuation intensity of the to-be-processed area, and establishing a corresponding to-be-processed list;
extracting the area to be processed, and acquiring a first voltage and a second voltage corresponding to the head end and the tail end of the area to be processed based on the list to be processed;
establishing a step from the first voltage to the second voltage by using the second adjusting parameter, and adjusting the voltage of the area to be processed to the second voltage by using the step;
wherein adjusting the test adjustment layer with a first adjustment parameter is equivalent to adjusting the test adjustment layer with the variable resistor 22, and adjusting the test adjustment layer with a second adjustment parameter is equivalent to adjusting the test layer with a battery;
and respectively acquiring the adjusting process corresponding to each inspection adjusting layer, establishing an adjusting scheme, and adjusting the voltage according to the adjusting scheme.
The working principle and the beneficial effects of the technical scheme are as follows: this on-vehicle panel computer with safe voltage protection through the image of gathering the voltmeter, recycles the model that image processing technique obtained the voltmeter, and then utilizes the current voltage of the model analysis voltmeter that corresponds, so can obtain current voltage fast, utilizes the model analysis voltage value can obtain accurate voltage value moreover, has avoided the error that the people's eye observed, also does the basis for the input voltage of follow-up regulation flat computer simultaneously.
The control system is further used for establishing a first adjusting frame which is consistent with the minimum voltage difference specification based on the voltage adjusting instruction;
acquiring a residual adjusting range of the variable resistor 22 based on the current resistance of the variable resistor 22, generating a first adjusting parameter and transmitting the first adjusting parameter to the adjusting frame;
acquiring the available power supply time of the lithium battery based on the current electric quantity of the lithium battery, and generating a second adjusting parameter;
inputting the first adjusting parameter and the second adjusting parameter into each adjusting layer of the first adjusting frame, and establishing corresponding inspection adjusting layers;
adjusting the inspection adjusting layer to a specified height within a preset time by using the first adjusting parameter, and acquiring a to-be-processed area which fluctuates on the inspection adjusting layer in the adjusting process;
when a to-be-processed area exists on the inspection adjusting layer, acquiring the fluctuation intensity of the to-be-processed area, and establishing a corresponding to-be-processed list;
extracting the area to be processed, and acquiring a first voltage and a second voltage corresponding to the head end and the tail end of the area to be processed based on the list to be processed;
establishing a step from the first voltage to the second voltage by using the second adjusting parameter, and adjusting the voltage of the area to be processed to the second voltage by using the step;
wherein adjusting the test adjustment layer with a first adjustment parameter is equivalent to adjusting the test adjustment layer with the variable resistor 22, and adjusting the test adjustment layer with a second adjustment parameter is equivalent to adjusting the test layer with a battery;
and respectively acquiring the adjusting process corresponding to each inspection adjusting layer, establishing an adjusting scheme, and adjusting the voltage according to the adjusting scheme.
The working principle and the beneficial effects of the technical scheme are as follows: according to the vehicle-mounted tablet personal computer with the safe voltage protection function, the power supply voltage is synchronously adjusted through the variable resistor and the storage battery, when voltage adjustment is carried out, voltage fluctuation generated in the adjustment process needs to be considered, the remaining adjustable range of the variable resistor needs to be noticed, so that the power supply voltage is adjusted in stages by utilizing the variable resistor and the storage battery, normal work of the tablet personal computer can be guaranteed, the power supply voltage can be stably adjusted, and the tablet personal computer is prevented from being damaged by voltage fluctuation.
An in-vehicle tablet computer with safe voltage protection, comprising:
the body 1 is provided with a controller, a first temperature sensor and a second temperature sensor which are connected with the controller;
the first temperature sensor is used for detecting a first temperature at the inner side of the body 1 and transmitting the first temperature to the controller;
the second temperature sensor is used for detecting a second temperature outside the body 1 and transmitting the second temperature to the controller;
the controller is used for acquiring the length and the width of the heat dissipation paste 2 and dividing the heat dissipation paste 2 into h blocks of sub heat dissipation pastes with the specification of n × m;
the controller is used for calculating the heat dissipation capacity of the heat dissipation patch 2 in the current environment according to formulas (I) and (II);
wherein p represents the heat dissipating capacity of the heat dissipating patch 2 per unit area in the current environment, h represents the total number of the sub heat dissipating patches, γiRepresents the standard heat dissipation capacity, t, of the ith sub-heat dissipation patch under the standard heat dissipation1Representing said first temperature, t2Is indicative of the second temperature of the liquid,
showing the heat dissipation rate of the ith sub-heat dissipation patch, delta T showing the standard heat dissipation temperature difference of the heat dissipation patch, delta s showing the heat dissipation rate corresponding to the standard heat dissipation temperature difference,
the difference in the heat dissipation rate is expressed,
indicating an increased heat dissipation based on the difference in heat dissipation rates, epsilon indicating an adjustment factor for the increased heat dissipation,
wherein, γmaxiRepresents the maximum heat dissipation amount of the ith sub-heat-dissipation patch, and n × h × m × h represents the area of the heat-dissipation patch 2, i.e., (n × h) × (m × h);
Q＝p×n×h×m×h×(t2-t1)+d(Ⅱ)
wherein Q represents the heat dissipation capacity of the heat dissipation patch 2, and d represents the natural heat dissipation capacity;
when the heat dissipation capacity of the heat dissipation sticker 2 reaches the maximum heat dissipation capacity, whether the second temperature is within a preset temperature range or not is judged, and if the high-temperature danger warning is not generated, the high-temperature danger warning is transmitted to the body 1 to be displayed.
The working principle and the beneficial effects of the technical scheme are as follows: in order to make the body can normally work, be equipped with the heat dissipation subsides on the body, because the radiating effect of heat dissipation subsides receives external environment's influence easily, the event utilizes the formula to calculate the heat dissipation capacity that the heat dissipation was pasted at the in-process of body work, and the temperature in the rethread contrast body outside, and then judges whether the body is worked in the environment of high fever to make corresponding warning.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides an on-vehicle panel computer with safe voltage protection, includes body (1), its characterized in that: the back surface of the body (1) is clamped with a rear cover (4), the bottom end of the back surface of the body (1) is provided with a hole groove (5), and an inner cavity of the hole groove (5) is clamped with a wide-pressure module (3);
the wide-pressure module (3) comprises a box body (9) and a wiring groove (16);
one side of box body (9) inner chamber is equipped with control box (18), be equipped with control system and lithium cell in control box (18), the top of control box (18) is equipped with input line (21), and the constant resistance setting is in control box (18) top and with input line (21) are connected, and variable resistance (22) set up control box (18) top and variable resistance (22) one end with the constant resistance is connected.
2. The vehicle-mounted tablet computer with safe voltage protection as claimed in claim 1, wherein: body (1) the top at the back is inlayed and is had heat dissipation subsides (2), remove structure (7) including initiative lead screw (13) and driven lead screw (11), initiative lead screw (13) and driven lead screw (11) respectively with the middle part swing joint of hole groove (5) inner chamber both sides, just driven lead screw (11) of initiative lead screw (13) flush with the back of body (1), the equal swing joint in bottom of initiative lead screw (13) and driven lead screw (11) has the gear, and two gears pass through drive belt (12) transmission and are connected, drive belt (12) and body (1) swing joint, the equal threaded connection in outer lane at initiative lead screw (13) and driven lead screw (11) both ends has ejector pad (14).
3. The vehicle-mounted tablet computer with safe voltage protection as claimed in claim 1, wherein: the middle part at both ends all is equipped with around hole groove (5) inner chamber and removes structure (7), remove structure (7) and press module (3) adaptation with the width, the top joint of box body (9) inner chamber has lid (10), the middle part at box body (9) both ends all is connected with connecting block (15), the top of control box (18) is equipped with output line (30), charging wire (19), voltmeter (24) and camera (23).
4. The vehicle-mounted tablet computer with safe voltage protection as claimed in claim 3, wherein: the middle part of body (1) bottom is inlayed in wiring groove (16), just wiring groove (16) and adapter's joint adaptation, the material of wiring groove (16) is metal copper.
5. The vehicle-mounted tablet computer with safe voltage protection as claimed in claim 3, wherein: the two sides of the top end of the box cover (10) are provided with convex blocks.
6. The vehicle-mounted tablet computer with safe voltage protection as claimed in claim 3, wherein: two through-holes on box body (9), the other end of input line (21) and charging wire (19) passes through the through-hole and contacts with wiring groove (16), copper sheet (8) are inlayed at the top of hole groove (5) inner chamber the other end of output line (30) runs through the lateral wall of box body (9) and contacts with copper sheet (8).
7. The vehicle-mounted tablet computer with safe voltage protection as claimed in claim 3, wherein: voltmeter (24) are connected with constant resistance's both ends through the electric wire, camera (23) are connected with the top of box body (1) inner chamber, just camera (23) are located voltmeter (23) dial plate directly over, charging wire (19), electric control switch (20) and lithium cell pass through the connection of electric lines.
8. The vehicle-mounted tablet computer with safe voltage protection as claimed in claim 3, wherein: the middle part of variable resistance (22) inner chamber is equipped with connecting rod (25) that the winding has the copper wire, shift ring (28) have been cup jointed in the outer lane activity of connecting rod (25), the inner wall of shift ring (28) is inlayed and is had the conductor wire the same with the copper wire diameter, conductor wire and copper wire contact, the front side of variable resistance (22) inner chamber is connected with rotation motor (26), the output shaft end-to-end connection who rotates motor (26) has rotation lead screw (27), the one end and the rotation lead screw (27) threaded connection of shift ring (28), the rear side of variable resistance (22) inner chamber is equipped with current conducting plate (29), the other end and the contact of current conducting plate (29) of conductor wire, just input line (21) are connected with the one end of copper wire, and output line (30) are connected with the one end of current conducting plate (29).
9. The vehicle-mounted tablet computer with safe voltage protection as claimed in claim 3, wherein:
the control system is used for controlling the camera (23) to collect a first image of the dial plate of the voltmeter (23);
acquiring the first image, performing edge enhancement on the first image, extracting a second image of a nameplate of the voltmeter (23) from the enhanced first image, and inputting the second image into a preset convolution training model;
acquiring a pixel value corresponding to each pixel point in the second image, regarding the pixel points with the same pixel value as a class, and inputting the class into a corresponding convolution layer in the preset convolution training model;
meanwhile, establishing a first corresponding relation between the pixel points and a second image and a second corresponding relation between the convolution layer and the pixel points;
respectively eliminating noise points contained in corresponding pixel points in the convolution layers to obtain corresponding target pixel points, and then performing convolution processing on the target pixel points to obtain corresponding pixel point outlines on each convolution layer;
inputting the outline of the corresponding pixel point on each convolution layer to the second image based on the first corresponding relation and the second corresponding relation, and establishing a detection image;
carrying out gray level processing on the inspection image, and respectively obtaining a gray level outline corresponding to each pixel point outline;
traversing each gray contour by using a preset mark contour to obtain a first gray contour belonging to a mark in the gray contours;
obtaining the model of the voltmeter (23) according to a preset mark-model list;
based on the model, acquiring a first model corresponding to the voltmeter (23) from a preset model-model list;
acquiring a first angle between a pointer of the voltmeter (23) and a 0 scale mark in the first image, and regarding the first angle as a target angle;
rotating the simulation pointer in the first model by a target angle, and reading a first voltage value in the first model;
and acquiring the relation between the first voltage value and a standard voltage value range, acquiring the minimum voltage difference value between the first voltage value and the standard voltage value range when the first voltage value is not in the standard voltage value range, and generating a voltage regulation instruction for voltage regulation.
10. The vehicle-mounted tablet computer with safe voltage protection as claimed in claim 9, wherein:
the control system is further used for establishing a first adjusting frame which is consistent with the minimum voltage difference specification based on the voltage adjusting instruction;
obtaining the remaining adjusting range of the variable resistor (22) based on the current resistance of the variable resistor (22), generating a first adjusting parameter and transmitting the first adjusting parameter to the adjusting frame;
acquiring the available power supply time of the lithium battery based on the current electric quantity of the lithium battery, and generating a second adjusting parameter;
inputting the first adjusting parameter and the second adjusting parameter into each adjusting layer of the first adjusting frame, and establishing corresponding inspection adjusting layers;
adjusting the inspection adjusting layer to a specified height within a preset time by using the first adjusting parameter, and acquiring a to-be-processed area which fluctuates on the inspection adjusting layer in the adjusting process;
when a to-be-processed area exists on the inspection adjusting layer, acquiring the fluctuation intensity of the to-be-processed area, and establishing a corresponding to-be-processed list;
extracting the area to be processed, and acquiring a first voltage and a second voltage corresponding to the head end and the tail end of the area to be processed based on the list to be processed;
establishing a step from the first voltage to the second voltage by using the second adjusting parameter, and adjusting the voltage of the area to be processed to the second voltage by using the step;
wherein adjusting the test adjustment layer with a first adjustment parameter is equivalent to adjusting the test adjustment layer with the variable resistor (22), and adjusting the test adjustment layer with a second adjustment parameter is equivalent to adjusting the test layer with a battery;
and respectively acquiring the adjusting process corresponding to each inspection adjusting layer, establishing an adjusting scheme, and adjusting the voltage according to the adjusting scheme.
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| CN202210086913.4A CN114415812B (en) | 2022-01-25 | 2022-01-25 | Vehicle-mounted tablet personal computer with safety voltage protection function |
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| CN114415812B (en) | 2023-05-16 |
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