CN115951732B - Wisdom radar host computer temperature control system - Google Patents
Wisdom radar host computer temperature control system Download PDFInfo
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- CN115951732B CN115951732B CN202211641182.1A CN202211641182A CN115951732B CN 115951732 B CN115951732 B CN 115951732B CN 202211641182 A CN202211641182 A CN 202211641182A CN 115951732 B CN115951732 B CN 115951732B
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- 238000005286 illumination Methods 0.000 claims abstract description 70
- 238000001816 cooling Methods 0.000 claims abstract description 39
- 238000007405 data analysis Methods 0.000 claims abstract description 9
- 230000001105 regulatory effect Effects 0.000 claims description 68
- 238000001514 detection method Methods 0.000 claims description 38
- 238000009529 body temperature measurement Methods 0.000 claims description 12
- 230000001276 controlling effect Effects 0.000 claims description 9
- 238000012216 screening Methods 0.000 claims description 8
- 101100518501 Mus musculus Spp1 gene Proteins 0.000 claims description 7
- 230000035807 sensation Effects 0.000 claims description 4
- 238000004458 analytical method Methods 0.000 claims description 3
- 108700041286 delta Proteins 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 238000004378 air conditioning Methods 0.000 claims 1
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 238000012935 Averaging Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005375 photometry Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/88—Optimized components or subsystems, e.g. lighting, actively controlled glasses
Abstract
The invention discloses a temperature control system of an intelligent radar host, which particularly relates to the technical field of temperature control, and the intelligent radar host temperature control system comprises a data acquisition module, a data analysis module, a temperature control unit and a temperature control unit, wherein the data acquisition module is used for acquiring temperature, ambient temperature and illumination intensity data of an automobile reversing radar host, the data analysis module is used for analyzing the reversing radar host to generate light Wen Yinzi, a light sensing factor and a light ranging distance of the reversing radar host, the temperature change factor and the temperature ranging distance are used for judging whether the reversing radar host is cooled or not and setting optimal cooling power, so that inaccurate temperature control time of the reversing radar system is avoided, and different cooling powers are adopted, and the condition of insufficient cooling energy is avoided; the early warning module carries out early warning judgment on the predicted maximum monitoring distance of the current automobile, so that the current automobile is supplied to a driver, the driving speed of the driver is adjusted, and the situation that the reversing risk is increased due to the fact that the temperature of the reversing radar host is not completely cooled when the automobile reaches a destination is avoided.
Description
Technical Field
The invention relates to the technical field of temperature control, in particular to a temperature control system of a smart radar host.
Background
Currently, the use proportion of reversing radars on automobiles is larger and larger, and basically, standard matching is used for middle-high-grade cars, and the reversing radars are generally composed of a main machine, a sensor and a wire harness, wherein the sensor is arranged on a front or rear bumper of the automobile, the main machine is arranged on the automobile body, and the wire harness is used for connecting the sensor, the main machine and an instrument panel. The sensor transmits and receives ultrasonic waves, the ultrasonic waves are transmitted to the host computer through signals, the host computer calculates, calculates the distance between the vehicle body and the obstacle and transmits the distance to the display screen in front of the driver seat to be displayed, or the driver is prompted in a sound alarming mode through the buzzer or the instrument panel, so that the driver can master the front and rear conditions of the vehicle, and the collision between the vehicle body and the obstacle is avoided.
The prior radar host temperature control system controls the temperature of the radar host when the temperature of the automobile reversing radar host is monitored to exceed the preset temperature, however, because the automobile reversing radar host is arranged on the outer side of an automobile, if the automobile is parked in an outdoor parking lot or the driving time is long, the automobile reversing radar host is in an illumination environment for a long time, and the temperature of the radar host is too high, the temperature of the radar host is increased quickly, so when the temperature is increased to a preset temperature threshold value, the reversing radar host is cooled, the phenomenon that the cooling is not energy-saving is brought into play, the cooling time is too short, and the reversing risk judgment can not be carried out on a driver based on the reversing maximum detection distance when the automobile reaches a destination in advance;
in order to solve the above problems, the present invention proposes a solution.
Disclosure of Invention
The invention aims to provide a temperature control system of a smart radar host, which aims to solve the problems that in the prior art, because a car reversing radar host is arranged on the outer side of a car, if a car is parked in an outdoor parking lot or the driving time is long, the car reversing radar host is in an illumination environment for a long time, and the temperature of the radar host is very fast due to overhigh ambient temperature, so that the reversing radar host is cooled when the temperature rises to a preset temperature threshold value, the occurrence of the condition of insufficient cooling and energy saving is caused, the cooling time is not enough, and the reversing risk judgment can not be carried out on a driver based on the reversing maximum detection distance when the car reaches a destination in advance.
The aim of the invention can be achieved by the following technical scheme:
a smart radar host temperature control system, comprising:
the data acquisition module is used for acquiring the data of the automobile reversing radar host, wherein the data of the automobile reversing radar host comprises temperature data, environment temperature data, obstacle distance data and time data of the automobile reversing radar;
the data analysis module is used for analyzing the data of the car reversing radar host to generate light Wen Yinzi PG1, light sensing factor PG2 and light distance PG3 of the car reversing radar host, and temperature change factor PG4 and temperature measurement distance PG5 of the car reversing radar host;
the central control module is used for regulating and controlling the temperature of the reversing radar host of the current running vehicle and carrying out early warning, and comprises a central control unit and an early warning unit;
the central control unit regulates and controls the temperature of a reversing radar host of the current automobile according to a certain regulation and control rule, and the specific regulation and control rule is as follows:
s11: acquiring the average illumination intensity VM1 of the current car reversing radar host, the environment temperature VM2 of the current car, the reversing radar host temperature VM3 and the estimated arrival time VM4 of the current position of the car to the destination;
s12: if VM1 is greater than or equal to M1:
s121: if VM3 is more than or equal to M2, the regulation and control unit reduces the temperature of the reversing radar host of the current automobile according to the temperature reduction power Wmax, wherein Wmax is the maximum temperature reduction power of the current automobile;
using the formulaCalculating and acquiring the expected maximum detection distance X1 of a reversing radar after the current automobile reaches a destination, and transmitting the estimated maximum detection distance X1 to an early warning unit, wherein ψ1 is a preset coefficient;
s13: if VM3<M2, using the formulaCalculating and obtaining the current cooling power w1 of the automobile;
comparing the sizes of w1 and w, if w1 is more than w, cooling the reversing radar host of the current automobile according to cooling power w by the regulation and control unit, wherein w is the optimal energy-saving power of the current automobile;
conversely, using the formulaCalculating and obtaining the pre-waiting cooling time VT1 of the current automobile, wherein the control unit controls the reversing radar of the automobile after the VT1 timeThe host machine carries out temperature reduction;
s14: if VM1< M1:
s141: if VM3 is more than or equal to M2, the regulation and control unit reduces the temperature of the reversing radar host of the current automobile according to the temperature reduction power Wmax, wherein Wmax is the maximum temperature reduction power of the current automobile;
using the formulaCalculating and acquiring the expected maximum detection distance X2 of a reversing radar after the current automobile reaches a destination, and transmitting the expected maximum detection distance X2 to an early warning unit, wherein ψ2 is a preset coefficient;
s142: if VM3<M2, using the formulaCalculating and obtaining the current cooling power w1 of the automobile;
comparing the sizes of w1 and w, and if w1 is more than w, cooling the reversing radar host of the current automobile by the regulation and control unit according to cooling power w;
conversely, using the formulaCalculating and obtaining the pre-waiting cooling time VT1 of the current automobile, and carrying out temperature cooling on a reversing radar host of the automobile after the VT1 time by the regulating and controlling unit;
and the early warning unit judges the reversing difficulty of the current driver after the current driver reaches the destination and early warns the driver.
Further, the reversing radar host is arranged at the position of a rear bumper of the automobile.
Further, the data analysis module analyzes and generates the reversing radar host light Wen Yinzi PG1, the light sensing factor PG2 and the light distance measuring distance PG3, and the specific analysis steps of the temperature change factor PG4 and the temperature measuring distance PG5 are as follows:
s31: firstly, selecting an automobile as an automobile to be regulated and controlled, and selecting a reversing radar host of the automobile to be regulated and controlled as the host to be regulated and controlled;
s32: dividing the regulation segments, dividing one regulation period into a regulation segments with equal time length, and marking the a regulation segments of one regulation period as A1, A2, aa and a is more than or equal to 1;
s33: screening and obtaining illumination influence segments D1, D2, dc and c of a host to be regulated in a regulation period according to a certain screening step, wherein c is more than or equal to 1, H2, hh and H is more than or equal to 1;
s34: calculating and obtaining a temperature calibration value eta 1 and an illumination calibration value mu 1 of a regulation and control week expected regulation and control host;
s35: according to a certain calculation step, calculating and obtaining light Wen Yinzi PG1, light sensation factor PG2 and light distance measuring distance PG3 of a host to be regulated and controlled;
s36: and acquiring a temperature change factor PG4 and a temperature measurement distance PG5 of the host to be regulated.
Further, the step S33 of screening to obtain the illumination influence segments D1, D2, and the no light control segments H1, H2 of the host to be controlled in one control period includes the following steps:
s331: taking a regulation section A1 of a regulation period as an example, acquiring a temperature change value PB1, an ambient temperature PB2 and average illumination intensity PB3 of a regulation host in the regulation section;
s332: using the formulaCalculating and obtaining an influence coefficient alpha 1 of a regulating host computer in the regulating section, wherein the influence coefficient alpha 1 and the influence coefficient alpha 2 are preset proportion coefficients;
if alpha 1> alpha, judging that the regulation section A1 of the regulation period is an illumination influence section, otherwise, judging that the regulation period is an irrelevant regulation section, wherein alpha is a preset coefficient;
s333: all illumination influence segments of one regulation period are obtained through calculation according to S331 to S332, and are marked as D1, D2, dc, c is more than or equal to 1, and all non-illumination regulation segments are marked as H1, H2, hh.
Further, the step S34 of calculating and obtaining the temperature calibration value η1 and the illumination calibration value μ1 of the expected regulation host at one regulation week is as follows:
s341: taking an illumination influence section D1 of the regulation period as an example, acquiring a temperature variable rate Dd1, a temperature average value De1, an ambient temperature Df1, an average illumination intensity DPG1 and a detection distance Dn1 of a host to be regulated in the illumination influence section D1; the detection distance Dn1 is the maximum distance between the automobile to be regulated and the obstacle detected by the host to be regulated under the illumination influence section D1;
then the equation is availableThe method comprises the steps of representing the influence of the ambient temperature and the illumination intensity on the temperature variable rate of a host to be regulated, wherein dβ1 and dδ1 are influence factors of the ambient temperature and the illumination intensity on the temperature of the host to be regulated respectively;
s342: according to S341, equations of all illumination influencing segments D1, D2, dc of a control period are obtained, respectively, so that an equation set can be formedSolving the equation set, obtaining the value of the beta 1 of the c-1 group, calculating and obtaining the average value of the value, calibrating the value as a temperature calibration value, marking the value as eta 1, obtaining the value of the delta 1 of the c-1 group, calculating and obtaining the average value of the value, calibrating the value as an illumination calibration value, marking the value as mu 1;
the detection distances Dn1, dn2, dn. Dnc of all illumination influence segments D1, D2, dc of a regulation and control period are obtained, and the average value of the detection distances of the illumination influence segments of the regulation and control period is calculated and obtained by utilizing a summation average taking formula, so that the average value is recalibrated to be the effective illumination distance O1.
Further, the specific steps of the early warning unit judging the reversing difficulty of the current driver after the driver reaches the destination and early warning the driver are as follows:
s21: obtaining the predicted maximum detection distance of the current automobile, and marking the predicted maximum detection distance as Y1;
s22: if Y1 is more than or equal to Ymax, judging that the current car is difficult to reverse after reaching a destination, wherein the early warning unit is provided with interval flicker, the interval time is 1s, and a buzzer continuously emits long sounds to warn a driver;
s23: if Ymin is less than Y1 and Ymax, judging that the current car is in a middle backing difficulty after reaching a destination, wherein the early warning unit is provided with interval flicker, the interval time is 5 seconds, and a buzzer sounds a long sound and sounds a short sound to warn a driver;
s24: if Y1 is less than or equal to Ymin, judging that the current car is low in reversing difficulty after reaching a destination, and the like, wherein the early warning unit is provided with interval flicker, and the interval time is 15 seconds.
The invention has the beneficial effects that:
(1) According to the invention, the data acquisition module is arranged to acquire the temperature, the ambient temperature and the illumination intensity data of the reversing radar host of the automobile, the data analysis module is used to analyze the reversing radar host to generate light Wen Yinzi, light sensing factors and light ranging distances of the reversing radar host, the temperature change factors and the temperature measuring distances, the regulation and control unit is used to judge whether the current estimated time of the vehicle to reach the destination, the ambient temperature and the temperature of the current reversing radar host are cooled and set the optimal cooling power, so that inaccurate temperature regulation and control time of the reversing radar system is avoided, and different cooling powers are adopted to avoid the occurrence of the condition of insufficient cooling energy;
(2) According to the invention, the pre-warning module pre-warns and judges the predicted maximum monitoring distance of the current automobile to provide the driving personnel, and the driving speed of the driving personnel is adjusted, so that the situation that the reversing risk is increased due to the fact that the temperature of the reversing radar host is not completely cooled when the automobile reaches a destination is avoided.
Drawings
The invention is further described below with reference to the accompanying drawings.
Fig. 1 is a system block diagram of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1, a smart radar host temperature control system includes a data acquisition module, a central control module and a data analysis module;
the data acquisition module is used for acquiring data of a reversing radar host of the automobile, and comprises a temperature acquisition unit, a light intensity acquisition unit, an obstacle distance acquisition unit and a time acquisition unit, wherein the reversing radar host is arranged at the rear bumper position of the automobile;
the temperature and humidity acquisition unit is used for acquiring temperature data of the car reversing radar host and environmental temperature data of the car, and the light intensity acquisition unit is used for acquiring data of average illumination intensity of the car reversing radar host; the obstacle distance acquisition unit is used for acquiring distance data between the automobile and the obstacle, which is measured by the radar host;
the time acquisition unit is used for acquiring the expected time from the current position of the automobile to the destination;
the data acquisition module transmits the current reversing radar host data of the automobile to the central control module, the central control module is used for controlling the temperature of the current radar host of the running automobile and carrying out high-temperature early warning on a driver, and the central control module comprises a regulation and control unit and an early warning unit; the control unit receives the current reversing radar host data of the automobile transmitted by the data acquisition module and then transmits the current reversing radar host data of the automobile to the control unit, and the control unit controls the reversing radar host temperature of the current automobile according to a certain control rule after receiving the reversing radar host data of the current automobile transmitted by the control module, wherein the specific control rule is as follows:
s11: acquiring the average illumination intensity VM1 of the current car reversing radar host, the environment temperature VM2 of the current car, the reversing radar host temperature VM3 and the estimated arrival time VM4 of the current position of the car to the destination;
s12: if VM1 is greater than or equal to M1:
s121: if VM3 is more than or equal to M2, the regulation and control unit reduces the temperature of the reversing radar host of the current automobile according to the temperature reduction power Wmax, wherein Wmax is the maximum temperature reduction power of the current automobile;
using the formulaCalculating and acquiring the expected maximum detection distance X1 of a reversing radar after the current automobile reaches a destination, and transmitting the estimated maximum detection distance X1 to an early warning unit, wherein ψ1 is a preset coefficient;
s13: if VM3<M2, using the formulaCalculating and obtaining the current cooling power w1 of the automobile;
comparing the sizes of w1 and w, if w1 is more than w, cooling the reversing radar host of the current automobile according to cooling power w by the regulation and control unit, wherein w is the optimal energy-saving power of the current automobile;
conversely, using the formulaCalculating and obtaining the pre-waiting cooling time VT1 of the current automobile, and carrying out temperature cooling on a reversing radar host of the automobile after the VT1 time by the regulating and controlling unit;
s14: if VM1< M1:
s141: if VM3 is more than or equal to M2, the regulation and control unit reduces the temperature of the reversing radar host of the current automobile according to the temperature reduction power Wmax, wherein Wmax is the maximum temperature reduction power of the current automobile;
using the formulaCalculating and acquiring the expected maximum detection distance X2 of a reversing radar after the current automobile reaches a destination, and transmitting the expected maximum detection distance X2 to an early warning unit, wherein ψ2 is a preset coefficient;
s142: if VM3<M2, using the formulaCalculating and obtaining the current cooling power w1 of the automobile;
comparing the sizes of w1 and w, and if w1 is more than w, cooling the reversing radar host of the current automobile by the regulation and control unit according to cooling power w;
conversely, using the formulaCalculating and obtaining the pre-waiting cooling time VT1 of the current automobile, and carrying out temperature cooling on a reversing radar host of the automobile after the VT1 time by the regulating and controlling unit;
the early warning unit receives the predicted maximum detection distance transmitted by the regulation and control unit and then carries out early warning on a driver according to a certain early warning rule, wherein the specific early warning rule is as follows:
s21: obtaining the predicted maximum detection distance of the current automobile, and marking the predicted maximum detection distance as Y1;
s22: if Y1 is more than or equal to Ymax, judging that the current car is difficult to reverse after reaching a destination, wherein the early warning unit is provided with interval flicker, the interval time is 1 second, and a buzzer continuously emits long sounds to warn a driver;
s23: if Ymin is less than Y1 and Ymax, judging that the current car is in a middle backing difficulty after reaching a destination, wherein the early warning unit is provided with interval flicker, the interval time is 5 seconds, and a buzzer sounds a long sound and sounds a short sound to warn a driver;
s24: if Y1 is less than or equal to Ymin, judging that the current car is low in reversing difficulty after reaching a destination, wherein the early warning unit is provided with interval flicker, and the interval time is 15 seconds;
the data analysis module is used for analyzing the data of the reversing radar host of the automobile, and the specific analysis steps are as follows:
s31: firstly, selecting an automobile as an automobile to be regulated and controlled, and selecting a reversing radar host of the automobile to be regulated and controlled as the host to be regulated and controlled;
s32: dividing the regulation segments, dividing one regulation period into a regulation segments with equal time length, and marking the a regulation segments of one regulation period as A1, A2, aa and a is more than or equal to 1;
s33: screening and obtaining illumination influence segments D1, D2, and the Dc and non-illumination regulation segments H1, H2, and Hh of a host to be regulated in a regulation period according to a certain screening step;
s331: taking a regulation section A1 of a regulation period as an example, acquiring a temperature change value PB1, an ambient temperature PB2 and average illumination intensity PB3 of a regulation host in the regulation section;
s332: using the formulaCalculating and obtaining an influence coefficient alpha 1 of a regulating host computer in the regulating section, wherein the influence coefficient alpha 1 and the influence coefficient alpha 2 are preset proportion coefficients;
if alpha 1> alpha, judging that the regulation section A1 of the regulation period is an illumination influence section, otherwise, judging that the regulation period is an irrelevant regulation section, wherein alpha is a preset coefficient;
s333: calculating and obtaining all illumination influence segments of one regulation period according to S331 to S332, wherein the illumination influence segments are marked as D1, D2, dc, c is more than or equal to 1, and all non-illumination regulation segments are marked as H1, H2, hh, and H is more than or equal to 1;
s34: calculating and obtaining a temperature calibration value eta 1 and an illumination calibration value mu 1 of a regulation and control week expected regulation and control host;
s341: taking an illumination influence section D1 of the regulation period as an example, acquiring a temperature variable rate Dd1, a temperature average value De1, an ambient temperature Df1, an average illumination intensity DPG1 and a detection distance Dn1 of a host to be regulated in the illumination influence section D1;
the detection distance Dn1 is the maximum distance between the automobile to be regulated and the obstacle detected by the host to be regulated under the illumination influence section D1;
then the equation is availableThe method comprises the steps of representing the influence of the ambient temperature and the illumination intensity on the temperature variable rate of a host to be regulated, wherein dβ1 and dδ1 are influence factors of the ambient temperature and the illumination intensity on the temperature of the host to be regulated respectively;
s342: according to S341, equations of all illumination influencing segments D1, D2, dc of a control period are obtained, respectively, so that an equation set can be formedSolving the equation set, obtaining the value of the beta 1 of the c-1 group, calculating and obtaining the average value of the value, calibrating the value as a temperature calibration value, marking the value as eta 1, obtaining the value of the delta 1 of the c-1 group, calculating and obtaining the average value of the value, calibrating the value as an illumination calibration value, marking the value as mu 1;
acquiring detection distances Dn1, dn2, dn. Dnc of all illumination influence segments D1, D2, dc of a regulation and control period, calculating and acquiring a detection distance mean value of the illumination influence segments of the regulation and control period by using a summation averaging formula, and recalibrating the detection distance mean value to be an effective illumination distance O1;
s35: according to a certain calculation step, calculating and obtaining light Wen Yinzi PG1, light sensation factor PG2 and light distance measuring distance PG3 of a host to be regulated and controlled;
s351: calculating and obtaining temperature calibration values eta 1, eta 2, eta, illumination calibration values mu 1, mu 2, beta, and effective photometry distances O1, O2, ot of a host to be regulated in t regulation periods according to S34;
s352: using the formulaCalculating to obtain the discrete value E of the temperature calibration value of the host to be regulated in t regulation periods, comparing E with E1 in size, if E is more than or equal to E1, deleting the corresponding eta i1 values in sequence from big to small according to the beta eta i 1-eta I, calculating the discrete value E of the residual eta i1, and comparing E with E1 again in size until E is equal to or larger than E1<E1, wherein eta is the average value of temperature calibration values of t regulation weeks, wherein the regulation host is expected to participate in discrete value calculation; the E1 is a preset threshold, t regulation periods are t regulation periods from the current regulation period to the past, one regulation period is 1 day, and one regulation period is 1 hour;
the temperature calibration value mean value eta of the host to be regulated in t regulation periods is recalibrated to light Wen Yinzi and marked as PG1;
s353: using the formulaCalculating and obtaining a discrete value F of the light calibration value of the host to be regulated in t regulation periods, and carrying out the size of F and F1Comparing, if F is greater than or equal to F1, deleting corresponding mu i2 values sequentially from |mu i2 to mu| in order from large to small, calculating discrete values F of the residual mu i2, and comparing the sizes of F and F1 again until F<F1, wherein mu is the average value of illumination calibration values expected to participate in discrete value calculation by a regulating host machine at t regulating weeks; the F1 is a preset threshold value; the average value mu of illumination calibration values of a host to be regulated in t regulation periods is recalibrated to be a light sensation factor, and is marked as PG2;
s354: using the formulaCalculating to obtain the discrete value Q of the effective photometry distance of the host computer to be regulated in t regulation periods, comparing the Q with Q1 in size, if Q is more than or equal to Q1, deleting the corresponding Oi3 values in sequence from the large value to the small value of I O3-O I, calculating the discrete value Q of the residual Oi3, and comparing the Q with Q1 in size again until Q is equal to or larger than Q<Q1, wherein O is the effective ranging mean value of t regulation weeks expected to participate in discrete value calculation of a regulation host; q1 is a preset threshold value; the effective light ranging distance average value O of the host to be regulated in t regulation periods is recalibrated to be light ranging distance, and is marked as PG3;
s36: acquiring a temperature change factor PG3 and a temperature measurement distance PG5 of a host to be regulated;
s361: taking a non-light regulation section H1 of the regulation period as an example, acquiring the temperature variable rate Hd1, the temperature average value He1, the ambient temperature Hf1 and the detection distance Hn1 of a host to be regulated in the non-light regulation section H1;
using the formulaCalculating and obtaining temperature change influence coefficient of environmental temperature to host temperature variable rate to be regulated>
S362: and (3) calculating and obtaining temperature change influence coefficients of all non-light regulation and control sections H1, H2, hh of the regulation and control period according to S361
Acquiring detection distances Hn1, hn2, and Hnh of all non-light regulation and control sections in one regulation and control period, calculating and acquiring a detection distance mean value of the non-light regulation and control sections in the regulation and control period by using a summation averaging formula, and recalibrating the detection distance mean value into an effective temperature measurement distance R1;
s363: using the formulaCalculating and obtaining a discrete value J of the temperature change influence coefficient of the regulation period, comparing the J with J1, and if J is more than or equal to J1, obtaining the discrete value according to +.> The corresponding +.>Value and calculate the remaining->And comparing J with J1 again until J<J1, wherein J1 is a preset threshold, said +.>The temperature change influence coefficient mean value of the regulating host computer participating in discrete value calculation is expected for the regulating week; the mean value of the temperature change influence coefficients of the host to be regulated in the regulation period is +.>Recalibrating a temperature change influence factor of a host to be regulated, and marking as K1;
s364: calculating and obtaining temperature change influence factors K1, K2, and the effective temperature measurement distances R1, R2, and Rt of a host to be regulated in t regulation periods according to S361 and S363;
s365: using the formulaCalculating to obtain the discrete value L of the temperature change influence factor of the host computer to be regulated in t regulation periods, comparing the L with L1 in size, deleting the corresponding Kl value in sequence from large to small according to the sequence of |Kl-K| if L is larger than or equal to L1, calculating the discrete value K of the residual Kl, and comparing the K with K1 in size again until K is equal to K<K1, wherein K is the mean value of temperature change influence factors of t regulation and control weeks expected to participate in discrete value calculation of a regulation and control host, and L1 is a preset threshold;
recalibrating the temperature change influence factor mean value K of the host to be regulated in t regulation periods to be a temperature change factor, and marking as PG4;
s366: using the formulaCalculating to obtain the discrete value U of the effective temperature measurement distance of the host computer to be regulated in t regulation periods, comparing the U with U1 in size, if U is more than or equal to U1, deleting corresponding Ru values in sequence from large to small according to the sequence of |Ru-R| and calculating the discrete value U of the residual Ru, and comparing the U with U1 in size again until U is reached<U1, wherein R is an effective temperature measurement distance average value of t regulation weeks, wherein the regulation host is expected to participate in discrete value calculation; r1 is a preset threshold value; the effective temperature measurement distance average value R of a host to be regulated in t regulation periods is recalibrated to be the temperature measurement distance, and is marked as PG5;
in the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is merely illustrative and explanatory of the invention, as various modifications and additions may be made to the particular embodiments described, or in a similar manner, by those skilled in the art, without departing from the scope of the invention or exceeding the scope of the invention as defined in the claims.
The foregoing describes one embodiment of the present invention in detail, but the description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. All equivalent changes and modifications within the scope of the present invention are intended to be covered by the present invention.
Claims (6)
1. An intelligent radar host temperature control system, comprising:
the data acquisition module is used for acquiring the data of the automobile reversing radar host, wherein the data of the automobile reversing radar host comprises temperature data, environment temperature data, obstacle distance data and time data of the automobile reversing radar;
the data analysis module is used for analyzing the data of the car reversing radar host to generate light Wen Yinzi PG1, light sensing factor PG2 and light distance PG3 of the car reversing radar host, and temperature change factor PG4 and temperature measurement distance PG5 of the car reversing radar host;
the central control module is used for regulating and controlling the temperature of the reversing radar host of the current running vehicle and carrying out early warning, and comprises a regulating and controlling unit and an early warning unit;
the regulation and control unit regulates and controls the temperature of the reversing radar host of the current automobile according to a certain regulation and control rule, and the specific regulation and control rule is as follows:
s11: acquiring the average illumination intensity VM1 of the current car reversing radar host, the environment temperature VM2 of the current car, the reversing radar host temperature VM3 and the estimated arrival time VM4 of the current position of the car to the destination;
s12: if VM1 is greater than or equal to M1, M1 is a preset average illumination intensity threshold value of the reversing radar host:
s121: if VM3 is more than or equal to M2, the regulation and control unit reduces the temperature of the reversing radar host of the current automobile according to the temperature reduction power Wmax, wherein Wmax is the maximum temperature reduction power of the current automobile, and M2 is a preset reversing radar host temperature threshold;
by means of a maleA kind of electronic device with high-pressure air-conditioning systemCalculating and acquiring the expected maximum detection distance X1 of a reversing radar after the current automobile reaches a destination, and transmitting the estimated maximum detection distance X1 to an early warning unit, wherein ψ1 is a preset coefficient;
s13: if VM3<M2, using the formulaCalculating and obtaining the current cooling power w1 of the automobile;
comparing the sizes of w1 and w, if w1 is more than w, cooling the reversing radar host of the current automobile according to cooling power w by the regulation and control unit, wherein w is the optimal energy-saving power of the current automobile;
conversely, using the formulaCalculating and obtaining the pre-waiting cooling time VT1 of the current automobile, and carrying out temperature cooling on a reversing radar host of the automobile after the VT1 time by the regulating and controlling unit;
s14: if VM1< M1:
s141: if VM3 is more than or equal to M2, the regulation and control unit reduces the temperature of the reversing radar host of the current automobile according to the temperature reduction power Wmax, wherein Wmax is the maximum temperature reduction power of the current automobile;
using the formulaCalculating and acquiring the expected maximum detection distance X2 of a reversing radar after the current automobile reaches a destination, and transmitting the expected maximum detection distance X2 to an early warning unit, wherein ψ2 is a preset coefficient;
s142: if VM3<M2, using the formulaCalculating and obtaining the current cooling power w1 of the automobile;
comparing the sizes of w1 and w, and if w1 is more than w, cooling the reversing radar host of the current automobile by the regulation and control unit according to cooling power w;
conversely, using the formulaCalculating and obtaining the pre-waiting cooling time VT1 of the current automobile, and carrying out temperature cooling on a reversing radar host of the automobile after the VT1 time by the regulating and controlling unit;
and the early warning unit judges the reversing difficulty of the current driver after the current driver reaches the destination and early warns the driver.
2. The smart radar host temperature control system of claim 1, wherein the reversing radar host is mounted in a rear bumper position of the vehicle.
3. The smart radar host temperature control system according to claim 1, wherein the data analysis module analyzes and generates the reverse radar host light Wen Yinzi PG1, the light sensing factor PG2, and the light ranging distance PG3, and the specific analysis steps of the temperature change factor PG4 and the temperature measurement distance PG5 are as follows:
s31: firstly, selecting an automobile as an automobile to be regulated and controlled, and selecting a reversing radar host of the automobile to be regulated and controlled as the host to be regulated and controlled;
s32: dividing the regulation segments, dividing one regulation period into a regulation segments with equal time length, and marking the a regulation segments of one regulation period as A1, A2, aa and a is more than or equal to 1;
s33: screening and obtaining illumination influence segments D1, D2, dc and c of a host to be regulated in a regulation period according to a certain screening step, wherein c is more than or equal to 1, H2, hh and H is more than or equal to 1;
s34: calculating and obtaining a temperature calibration value eta 1 and an illumination calibration value mu 1 of a regulation and control week expected regulation and control host;
s35: according to a certain calculation step, calculating and obtaining light Wen Yinzi PG1, light sensation factor PG2 and light distance measuring distance PG3 of a host to be regulated and controlled;
s36: and acquiring a temperature change factor PG4 and a temperature measurement distance PG5 of the host to be regulated.
4. The smart radar host temperature control system according to claim 3, wherein the step of screening to obtain the illumination influence segments D1, D2, and the non-illumination control segments H1, H2, and H1 in a control period is performed by the following steps:
s331: taking a regulation section A1 of a regulation period as an example, acquiring a temperature change value PB1, an ambient temperature PB2 and average illumination intensity PB3 of a regulation host in the regulation section;
s332: using the formulaCalculating and obtaining an influence coefficient alpha 1 of a regulating host computer in the regulating section, wherein the influence coefficient alpha 1 and the influence coefficient alpha 2 are preset proportion coefficients;
if alpha 1> alpha, judging that the regulation section A1 of the regulation period is an illumination influence section, otherwise, judging that the regulation period is an irrelevant regulation section, wherein alpha is a preset coefficient;
s333: all illumination influence segments of one regulation period are obtained through calculation according to S331 to S332, and are marked as D1, D2, dc, c is more than or equal to 1, and all non-illumination regulation segments are marked as H1, H2, hh.
5. A smart radar host temperature control system according to claim 3, wherein the specific steps of calculating and obtaining the temperature calibration value η1 and the illumination calibration value μ1 of a desired regulatory host at S34 are as follows:
s341: taking an illumination influence section D1 of the regulation period as an example, acquiring a temperature variable rate Dd1, a temperature average value De1, an ambient temperature Df1, an average illumination intensity Dg1 and a detection distance Dn1 of a host to be regulated in the illumination influence section D1; the detection distance Dn1 is the maximum distance between the automobile to be regulated and the obstacle detected by the host to be regulated under the illumination influence section D1;
then the equation is availableThe method comprises the steps of representing the influence of the ambient temperature and the illumination intensity on the temperature variable rate of a host to be regulated, wherein dβ1 and dδ1 are influence factors of the ambient temperature and the illumination intensity on the temperature of the host to be regulated respectively;
s342: according to S341, equations of all illumination influencing segments D1, D2, dc of a control period are obtained, respectively, so that an equation set can be formedSolving the equation set, obtaining the value of the beta 1 of the c-1 group, calculating and obtaining the average value of the value, calibrating the value as a temperature calibration value, marking the value as eta 1, obtaining the value of the delta 1 of the c-1 group, calculating and obtaining the average value of the value, calibrating the value as an illumination calibration value, marking the value as mu 1;
the detection distances Dn1, dn2, dn. Dnc of all illumination influence segments D1, D2, dc of a regulation and control period are obtained, and the average value of the detection distances of the illumination influence segments of the regulation and control period is calculated and obtained by utilizing a summation average taking formula, so that the average value is recalibrated to be the effective illumination distance O1.
6. The intelligent radar host temperature control system according to claim 1, wherein the specific steps of the early warning unit determining the difficulty of reversing after the current driver arrives at the destination and early warning the driver are as follows:
s21: obtaining the predicted maximum detection distance of the current automobile, and marking the predicted maximum detection distance as Y1;
s22: if Y1 is more than or equal to Ymax, judging that the current car is difficult to reverse after reaching a destination, wherein the early warning unit is provided with interval flicker, the interval time is 1 second, and a buzzer continuously emits long sounds to warn a driver;
s23: if Ymin is less than Y1 and Ymax, judging that the current car is in a middle backing difficulty after reaching a destination, wherein the early warning unit is provided with interval flicker, the interval time is 5 seconds, and a buzzer sounds a long sound and sounds a short sound to warn a driver;
s24: if Y1 is less than or equal to Ymin, judging that the current car is low in reversing difficulty after reaching a destination, and the like, wherein the early warning unit is provided with interval flicker, and the interval time is 15 seconds.
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