CN110422312B - Heating control method, device, equipment and medium for helicopter windshield - Google Patents
Heating control method, device, equipment and medium for helicopter windshield Download PDFInfo
- Publication number
- CN110422312B CN110422312B CN201910681619.6A CN201910681619A CN110422312B CN 110422312 B CN110422312 B CN 110422312B CN 201910681619 A CN201910681619 A CN 201910681619A CN 110422312 B CN110422312 B CN 110422312B
- Authority
- CN
- China
- Prior art keywords
- temperature
- heating
- heating power
- windshield glass
- current
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/023—Cleaning windscreens, windows or optical devices including defroster or demisting means
- B60S1/026—Cleaning windscreens, windows or optical devices including defroster or demisting means using electrical means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C1/00—Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like
- B64C1/14—Windows; Doors; Hatch covers or access panels; Surrounding frame structures; Canopies; Windscreens accessories therefor, e.g. pressure sensors, water deflectors, hinges, seals, handles, latches, windscreen wipers
- B64C1/1476—Canopies; Windscreens or similar transparent elements
- B64C1/1492—Structure and mounting of the transparent elements in the window or windscreen
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Control Of Resistance Heating (AREA)
Abstract
The embodiment of the invention discloses a heating control method, a device, equipment and a medium for helicopter windshield glass. The method comprises the following steps: when the acquisition time is reached, acquiring the current temperature of the windshield glass; according to the temperature difference between the current temperature and the historical temperature of the windshield glass at the previous acquisition moment, determining the heating power matched with the temperature difference; and controlling the heating equipment to heat the windshield glass according to the heating power, and then returning to execute the operation of obtaining the current temperature of the windshield glass when the acquisition time is reached so as to control the windshield glass to be heated to the target heating temperature according to the constant heating speed. By the aid of the technical scheme, controllability of temperature rising speed of the windshield glass is improved when defogging and anti-icing functions of the windshield glass of the helicopter are started, normal work of the windshield glass is guaranteed, and temperature rising overshoot of the windshield glass is avoided.
Description
Technical Field
The embodiment of the invention relates to the technical field of control, in particular to a heating control method, device, equipment and medium for helicopter windshield glass.
Background
The helicopter windshield glass is an important structural functional component on a helicopter, needs to keep good optical performance under severe conditions such as fogging and icing, and provides a clear view for a driver so as to ensure the driving safety. Therefore, the helicopter windshield needs to have the functions of defogging, anti-icing and the like.
The defogging function and the anti-icing function of the windshield are realized by heating the windshield, the transparent resistance wire is paved in the inner layer of the windshield, and the resistance wire is powered to generate heat, so that the temperature of the windshield can be adjusted. Meanwhile, a temperature sensor is further paved in the inner layer of the bottom of the windshield glass and used for collecting the temperature of the windshield glass in real time. The defogging function and the anti-icing function of the windshield correspond to a fixed target constant temperature point respectively, and after the defogging function and the anti-icing function of the windshield are started, the temperature of the windshield is automatically controlled to be adjusted and matched with the corresponding target constant temperature point.
Helicopters currently typically use both "on-off" and "duty cycle" methods to control windshield heating. The 'switching method' has the advantages of fast temperature rise and fast response, but when the ambient temperature is below zero or is about to reach a target constant temperature point, the windshield glass is easy to burst when the ambient temperature is heated at full power, the overshoot of the target constant temperature point is large, and the requirement on adjustment precision is difficult to meet; the duty ratio method has the characteristics of small overshoot and high adjustment precision, but the current duty ratio method adopts fixed closed-loop control parameters, and the control conditions are constrained by the current environmental temperature, the heating time, the constant temperature precision and the like, so that the temperature of the windshield glass cannot reach the target constant temperature point under the strong convection condition, and the temperature of the windshield glass easily exceeds the target constant temperature point under the weak convection condition. In addition, when the heating of the windshield glass is controlled by adopting the two methods, the control of the temperature rising speed of the windshield glass cannot be realized.
Disclosure of Invention
The embodiment of the invention provides a heating control method, a device, equipment and a medium for helicopter windshield glass, which are used for optimizing the prior technical scheme, improving the controllability of the temperature rise speed of the windshield glass when the defogging and anti-icing functions of the helicopter windshield glass are started and ensuring the normal work of the windshield glass.
In a first aspect, an embodiment of the present invention provides a method for controlling heating of a helicopter windshield, including:
when the acquisition time is reached, acquiring the current temperature of the windshield glass;
according to the temperature difference between the current temperature and the historical temperature of the windshield glass at the previous acquisition moment, determining the heating power matched with the temperature difference;
and controlling the heating equipment to heat the windshield glass according to the heating power, and then returning to execute the operation of obtaining the current temperature of the windshield glass when the acquisition time is reached so as to control the windshield glass to be heated to the target heating temperature according to the constant heating speed.
In a second aspect, an embodiment of the present invention further provides a heating control device for a helicopter windshield, including:
the temperature acquisition module is used for acquiring the current temperature of the windshield glass when the acquisition time is reached;
the heating power first determination module is used for determining the heating power matched with the temperature difference value according to the temperature difference value between the current temperature and the historical temperature of the windshield at the previous acquisition moment;
and the heating circulation module is used for controlling the heating equipment to heat the windshield glass according to the heating power and then returning to execute the operation of obtaining the current temperature of the windshield glass when the acquisition time is reached so as to control the windshield glass to be heated to the target heating temperature according to the constant heating speed.
In a third aspect, an embodiment of the present invention further provides a computer device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, and when the processor executes the computer program, the processor implements the method for controlling heating of a helicopter windshield according to any embodiment of the present invention.
In a fourth aspect, embodiments of the present invention further provide a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the method for controlling heating of a helicopter windshield according to any of the embodiments of the present invention.
According to the technical scheme provided by the embodiment of the invention, when the acquisition time is reached, the current temperature of the windshield glass is obtained, the heating power of the next acquisition time is determined according to the difference value between the current temperature of the windshield glass and the historical temperature of the windshield glass at the previous acquisition time, the heating operation is executed according to the determined heating power of the next acquisition time, and when the next acquisition time is reached, the current temperature of the windshield glass is obtained again, so that the heating treatment on the windshield glass is circularly realized, the windshield glass can be controlled to be heated to the target heating temperature according to the constant heating speed, the controllability of the heating speed of the windshield glass when the defogging and anti-icing functions of the helicopter windshield glass are started is improved, the normal work of the windshield glass is ensured, and the problem of temperature rise overshoot of the windshield glass is avoided.
Drawings
FIG. 1 is a flow chart of a method for controlling heating of a helicopter windshield in accordance with a first embodiment of the present invention;
FIG. 2 is a flow chart of a heating control method for a helicopter windshield according to a second embodiment of the present invention;
FIG. 3 is a flow chart of a method for controlling heating of a helicopter windshield according to a third embodiment of the present invention;
FIG. 4 is a schematic structural view of a heating control device for a windshield of a helicopter according to a fourth embodiment of the present invention;
fig. 5 is a schematic structural diagram of a computer device in the fifth embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Before discussing exemplary embodiments in more detail, it should be noted that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although a flowchart may describe the operations (or steps) as a sequential process, many of the operations can be performed in parallel, concurrently or simultaneously. In addition, the order of the operations may be re-arranged. The process may be terminated when its operations are completed, but may have additional steps not included in the figure. The processes may correspond to methods, functions, procedures, subroutines, and the like.
Example one
Fig. 1 is a flowchart of a heating control method for a helicopter windshield according to an embodiment of the present invention, which is applicable to a case where the heating control device for a helicopter windshield is activated when the "defogging" or "anti-icing" function of the helicopter windshield is activated, and which can be implemented by software and/or hardware, and which can be generally integrated into a processor.
As shown in fig. 1, the method of this embodiment specifically includes:
and S110, acquiring the current temperature of the windshield glass when the acquisition time is reached.
Transparent resistance wires are laid in the inner layer of the windshield glass, and the temperature of the windshield glass can be adjusted by generating heat after the resistance wires are electrified. The temperature of the windshield can be collected through the temperature sensor, the temperature sensor can be laid in the inner layer of the bottom of the windshield, and can also be laid at other positions of the windshield.
The temperature sensor can acquire the temperature of the windshield glass in real time and can also acquire the temperature of the windshield glass when reaching a preset acquisition moment. Specifically, the temperature sensor may collect the temperature of the windshield once every preset time period, for example, the temperature of the windshield once every 500 ms. The current temperature is the temperature of the windshield glass collected by the temperature sensor at the current moment.
Specifically, the heating control device for the helicopter windshield may store the temperatures of the windshield acquired by the temperature sensor at each acquisition time, for example, in the form of a series.
And S120, determining heating power matched with the temperature difference value according to the temperature difference value between the current temperature and the historical temperature of the windshield at the previous acquisition moment.
The heating power of the windscreen is determined in real time on the basis of the temperature difference between the current temperature and the historical temperature at the previous acquisition moment. For example, the current temperature acquired at the current acquisition time (n time point) is TnThe historical temperature acquired at the previous acquisition time (n-1 time point) is Tn-1If n and n-1 are separated by a predetermined time period (e.g., 500ms), then the time interval is determined according to TnAnd Tn-1The heating power of the windshield glass is determined in real time according to the temperature difference, and the determined heating power is used for continuously performing heating operation on the windshield glass subsequently.
Specifically, in order to control the heating speed of the windshield to be kept at an almost constant level, the heating power matched with the temperature difference and the temperature difference between the current temperature and the historical temperature of the windshield at the previous acquisition time may be in a certain inverse proportion relationship, and the larger the temperature difference is, the smaller the heating power matched with the temperature difference is, and correspondingly, the smaller the temperature difference is, the larger the heating power matched with the temperature difference is.
It is worth pointing out that when the current temperature of the windshield is collected at the first collection time after the preset heating function (for example, the "defogging" or "anti-icing" function, etc.) of the windshield is turned on, and the temperature difference between the current temperature and the historical temperature of the windshield at the previous collection time is calculated, the historical temperature of the windshield at the previous collection time may be the temperature of the windshield collected by the temperature sensor when the preset heating function of the windshield is turned on. Meanwhile, a heating power initial value can be set for the preset heating function of the windshield glass in advance and used as the heating power when the preset heating function of the windshield glass is started. In order to avoid the problem of the risk of bursting easily caused by heating the windshield glass when the ambient temperature is below zero, the initial value of the heating power is set to be smaller under the normal condition.
And S130, controlling the heating equipment to heat the windshield glass according to the heating power, and then returning to execute the operation of obtaining the current temperature of the windshield glass when the acquisition time is reached so as to control the windshield glass to be heated to the target heating temperature according to the constant heating speed.
After the heating power matched with the temperature difference is determined according to the temperature difference, the heating operation of the windshield glass is continuously performed according to the heating power. When the next acquisition moment is reached, the temperature difference between the current temperature and the historical temperature at the previous acquisition moment is recalculated, continuing with the previous example, namely, the T is recalculatedn+1And TnTemperature difference of (T)n+1For the temperature of the windscreen collected at the time point n +1, the time point n +1 is separated from the time point n by a predetermined time interval, and the temperature is measured according to Tn+1And TnRe-determining a new heating power matching the temperature difference, continuing to perform the heating operation on the windshield according to the new heating power, and repeating the stepsAnd operating until the temperature of the windshield is raised to the target heating temperature.
The target heating temperature is a temperature value that matches a preset heating function (e.g., a "defogging" or "anti-icing" function, etc.) of the windshield and is required to be maintained.
According to the technical scheme provided by the embodiment of the invention, when the acquisition time is reached, the current temperature of the windshield glass is obtained, the heating power of the next acquisition time is determined according to the difference value between the current temperature of the windshield glass and the historical temperature of the windshield glass at the previous acquisition time, the heating operation is executed according to the determined heating power of the next acquisition time, and when the next acquisition time is reached, the current temperature of the windshield glass is obtained again, so that the heating treatment on the windshield glass is circularly realized, the windshield glass can be controlled to be heated to the target heating temperature according to the constant heating speed, the controllability of the heating speed of the windshield glass when the defogging and anti-icing functions of the helicopter windshield glass are started is improved, the normal work of the windshield glass is ensured, and the problem of temperature rise overshoot of the windshield glass is avoided.
As a specific implementation manner of this embodiment, S120 may specifically be:
and if the current temperature is in the constant-speed heating interval, determining the heating power matched with the temperature difference according to the temperature difference between the current temperature and the historical temperature at the previous moment.
The constant-speed heating interval refers to a temperature interval in which the windshield glass is suitable for constant-speed heating, the windshield glass is prone to bursting due to too fast heating, and the heating effect is not obvious due to too slow heating. Furthermore, in the process of heating the windshield, the collected current temperature is judged in real time, if the current temperature is in the constant-speed heating interval, the heating power matched with the temperature difference is determined according to the temperature difference between the current temperature and the historical temperature at the previous moment, and if the current temperature is not in the constant-temperature acceleration interval, the heating power of the windshield is determined according to other strategies, which is not specifically limited in this embodiment.
Typically, the heating power matched with the temperature difference value may be determined according to the temperature difference value between the current temperature and the historical temperature at the previous time, specifically:
if the temperature difference between the current temperature and the historical temperature at the previous moment is larger than the preset temperature difference value, determining the heating power of the windshield glass as a first heating power, wherein the first heating power is smaller than the heating power at the current moment;
if the temperature difference value between the current temperature and the historical temperature at the previous moment is smaller than the preset temperature difference value, determining the heating power of the windshield glass as a second heating power, wherein the second heating power is larger than the heating power at the current moment;
and if the temperature difference value between the current temperature and the historical temperature at the previous moment is equal to the preset temperature difference value, determining the heating power of the windshield glass as the heating power at the current moment.
The preset temperature difference value is a preset temperature difference value for comparison, which is related to an ideal temperature rising speed of the windshield glass determined according to actual conditions, for example, the ideal temperature rising speed of the windshield glass is 0.05 degrees centigrade per second, and the preset time period of the adjacent temperature acquisition time points is 1 second, so that the preset temperature difference value can be set to 0.05 degrees centigrade.
When the temperature difference between the current temperature and the historical temperature at the previous moment is larger than the preset temperature difference value, namely the temperature rising speed of the windshield glass is slightly high, the heating power of the windshield glass is adjusted to be a first heating power smaller than the heating power at the current moment; when the temperature difference between the current temperature and the historical temperature at the previous moment is smaller than the preset temperature difference value, namely the temperature rising speed of the windshield glass is slightly slow, the heating power of the windshield glass is adjusted to be a first heating power larger than the heating power at the current moment; and when the temperature difference between the current temperature and the historical temperature at the previous moment is equal to the preset temperature difference value, namely the temperature rising speed of the windshield glass is slightly high, adjusting and maintaining the heating power of the windshield glass at the heating power at the current moment.
Wherein the heating power at the current moment is determined at the previous moment when the wind is facing the windThe windshield performs the heating power of the heating operation. For example, the heating power at the current time (n time point) is PnThen P isnIs based on the temperature T of the windscreen at the point in time n-1n-1With the temperature T of the windscreen at the point in time n-2n-2Determined at the n-1 time point.
Specifically, the first heating power is determined by the product of the heating power at the current moment and a first power adjustment coefficient, and the second heating power is determined by the product of the heating power at the current moment and a second power adjustment coefficient; the first power adjustment coefficient and the second power adjustment coefficient are determined according to a temperature difference value between the current temperature and the historical temperature at the previous moment, a preset temperature difference value and an adjustment parameter.
As a specific implementation manner of this embodiment, the first heating power and the second heating power may be determined by the following calculation formula:
P1＝Pn*r1＝Pn*(1-Kp*((Tn-Tn-1)-t))；
P2＝Pn*r2＝Pn*(1+Kp*(t-(Tn-Tn-1)))。
wherein, P1Is a first heating power, P2At a second heating power, r1Is a first power adjustment coefficient, r2For the second power adjustment factor, PnHeating power at the present time (n time points), TnIs the temperature at the current moment (n time points), Tn-1Is the temperature at the previous time (n-1 time point), t is a preset temperature difference value (e.g. 0.05 degree centigrade), KpThe parameters are adjusted (typically an integer between 20 and 100).
In the above technical solution, if the current temperature is within the constant-speed heating interval, the heating power value of the windshield glass is adjusted in real time according to the temperature difference between the current temperature and the historical temperature at the previous time, so that the temperature rise speed of the windshield glass can be maintained within a substantially constant range in the time period when the current temperature is within the constant-speed heating interval, the controllability of the temperature rise speed of the windshield glass of the helicopter is improved, and various problems caused by too fast or too slow temperature rise, such as the windshield glass bursting caused by too fast temperature rise, the windshield glass temperature greatly exceeding the target heating temperature caused by too fast temperature rise, the windshield glass temperature failing to reach the target heating temperature caused by too slow temperature rise, and the like are avoided.
Example two
Fig. 2 is a flowchart of a heating control method for a helicopter windshield according to a second embodiment of the present invention, which is optimized based on the second embodiment. Wherein, after acquiring the current temperature of the windshield glass, at least one of the following items can be included:
if the current temperature is in the low-temperature protection heating interval, determining the heating power of the windshield glass as the overshoot-prevention heating power, wherein the overshoot-prevention heating power is smaller than the maximum heating power;
if the current temperature is in the accelerated heating interval, determining the heating power of the windshield glass to be the maximum heating power;
if the current temperature is in a high-temperature critical heating interval, determining the heating power of the windshield glass according to the heating power variation trend of the windshield glass;
if the current temperature is in the high temperature cutoff heating interval, the heating power of the windshield glass is determined to be zero.
Specifically, the low-temperature protection heating interval is (— infinity, 0), and the accelerated heating interval is [0, T0) The constant heating interval is [ T ]0，Tt-1) high temperature critical heating interval of [ Tt-1，Tt) The high temperature cutoff heating interval is [ T ]t,+∞)；
Wherein, T0Critical temperature, T, for safe heating of windshieldstIs the target heating temperature for the windshield.
As shown in fig. 2, the method of this embodiment specifically includes:
and S210, acquiring the current temperature of the windshield glass when the acquisition time is reached.
After the preset heating function of the windshield is started, the heating control method provided by the embodiment is executed.
S220, judging a heating interval where the current temperature is located, if the current temperature is in a low-temperature protection heating interval, executing S230, if the current temperature is in an accelerated heating interval, executing S240, if the current temperature is in a constant-speed heating interval, executing S250, if the current temperature is in a high-temperature critical heating interval, executing S260, and if the current temperature is in a high-temperature cutoff heating interval, executing S270.
In this embodiment, the heating intervals are divided according to the performance parameters of the windshield and the target heating temperature of the preset heating function, and different heating intervals correspond to different heating power determination strategies.
The low-temperature protection heating interval refers to a temperature interval which is easy to heat and crack under the low-temperature environment of the windshield glass, and specifically can be (— ∞, 0); the accelerated heating interval refers to a temperature interval suitable for rapidly heating the windshield glass, and can be [0, T%0)，T0The critical temperature for safe heating of the windshield is related to the performance parameter of the windshield, for example 10 degrees celsius; the constant-speed heating interval refers to a temperature interval suitable for constant-speed heating of the windshield glass, and can be [ T [ ]0，Tt-1)，TtPresetting a target heating temperature with a heating function for the windshield glass, wherein the target heating temperature is generally three to forty ℃; the high-temperature critical heating interval refers to a temperature interval adjacent to a target heating temperature of a preset heating function of the windshield glass, and specifically may be [ T [ ]t-1，Tt) (ii) a The high-temperature cut-off heating interval refers to a temperature interval which reaches a target heating temperature of a preset heating function of the windshield glass and does not need to be heated continuously, and specifically can be [ T [ ]t,+∞)。
S230, determining the heating power of the windshield as the overshoot-prevention heating power, and executing S280.
Wherein the overshoot-proof heating power is less than the maximum heating power.
And if the current temperature is in the low-temperature protection heating interval, determining the heating power of the windshield as the overshoot-prevention heating power. The overshoot-prevention heating power can be set to the maximum heating power by a different proportion (less than 100%) of the duty cycle, for example by setting the overshoot-prevention heating power to half the maximum heating power by a 50% duty cycle.
The period of the duty cycle is matched with the frequency of the helicopter alternating current power supply, for example, the frequency of the helicopter alternating current power supply is 400Hz, and in order to avoid the occurrence of second harmonic, the period of the duty cycle should be an integral multiple of 2.5 ms.
S240, determining the maximum heating power of the windshield glass, and executing S280;
if the current temperature is in the accelerated heating interval, determining the heating power of the windshield glass to be the maximum heating power, specifically, adjusting the proportion of the duty ratio to 100% to determine the heating power of the windshield glass to be the maximum heating power.
And S250, determining heating power matched with the temperature difference value according to the temperature difference value between the current temperature and the historical temperature of the windshield at the previous acquisition moment, and executing S280.
And if the current temperature is in the constant-speed heating interval, determining the heating power matched with the temperature difference value according to the temperature difference value between the current temperature and the historical temperature of the windshield at the previous acquisition moment. For details, reference is made to the foregoing embodiments, which are not described in detail herein.
S260, determining the heating power of the windshield according to the heating power variation trend of the windshield, and executing S280.
And if the current temperature is in the high-temperature critical heating interval, determining the heating power of the windshield according to the heating power variation trend of the windshield. Wherein the trend of the heating power of the windshield is determined according to the heating power at the current moment and the heating power at least one historical moment before the current moment. For example, a heating power variation trend function with the temperature acquisition time as an independent variable is fitted according to the heating power at each time, and then the heating power of the windshield in the high-temperature critical heating interval is determined according to the heating power variation trend function.
As a specific implementation manner of this embodiment, S260 may specifically be: and calculating the heating power of the windshield according to the heating power of the windshield at the current moment and the heating power of at least one historical moment before the current moment, wherein the calculation weight of the heating power at the current moment is the largest, and the calculation weight of the heating power at the at least one historical moment before the current moment is sequentially decreased.
Specifically, the heating power P of the windshield can be determined by the following formula:
P＝Pn*kn+Pn-1*kn-1+Pn-2*kn-2+…+Pn-m*kn-mwherein k isnHeating power P for the current time (n time point)nIs calculated as a weight, kn-1The heating power P of the current time (n-1 time point)n-1Is calculated as a weight, kn-2The heating power P of the current time (n-2 time point)n-2…, kn-mHeating power P for the current time (n-m time point)n-mIs calculated as a weight, kn+kn-1+kn-2+…+kn-m＝1，kn、kn-1、kn-2、…、kn-mAnd sequentially decreasing, wherein the value of m is specifically set according to the actual situation.
The heating power P of the windscreen can also be determined by the following formula:
P＝Pn*kn+Pn-2*kn-2+Pn-4*kn-4+…+Pn-2m*kn-2m，kn+kn-2+kn-4+…+kn-2m＝1，kn、kn-2、kn-4、…、kn-2mand sequentially decreasing, wherein the value of m is specifically set according to the actual situation.
For example, the heating power P of the windscreen can be determined in particular by the following equation:
P＝Pn*0.6+Pn-2*0.3+Pn-4*0.1。
s270, the heating power of the windshield is determined to be zero, and S280 is executed.
And if the current temperature is in the high-temperature cutoff heating interval, determining the heating power of the windshield glass to be zero, and at the moment, not needing to heat the windshield glass continuously.
And S280, controlling the heating equipment to heat or not heat the windshield glass according to the heating power.
After the heating power of the windscreen is determined, the heating device is controlled to perform a heating operation according to the corresponding heating power. When the determined heating power of the windshield glass is zero, the windshield glass is not subjected to heating treatment.
And S290, judging whether the preset heating function of the windshield glass is closed or not, if not, returning to the step S210, and if so, executing the step S2100.
And when the next acquisition time is up, acquiring the current temperature of the windshield glass again, and executing the judgment operation until the preset heating function of the windshield glass is closed.
And S2100, ending the flow.
For the sake of brevity, the present embodiment is not explained in detail herein, and reference is made to the aforementioned embodiments for further description.
According to the technical scheme, the heating control of the helicopter windshield is realized by adopting a sectional control strategy, and the control strategies of constant power and constant speed are respectively adopted in different sectional intervals, so that the problem that the windshield is easy to crack when the ambient temperature is below zero is solved, and the problem that the temperature of the windshield cannot reach or greatly exceed the target heating temperature under severe environmental conditions is also solved. Therefore, the technical scheme ensures the heating safety of the windshield glass in a low-temperature environment, avoids the phenomena of temperature under-temperature and temperature overshoot of the windshield glass, enhances the stability, accuracy and controllability of the heating function of the windshield glass of the helicopter, further ensures the normal and good working state of the windshield glass, and provides a clear view for a helicopter driver.
EXAMPLE III
Fig. 3 is a flowchart of a heating control method for a helicopter windshield according to a third embodiment of the present invention. On the basis of the above embodiments, the present embodiment provides a specific implementation manner.
As shown in fig. 3, the method of this embodiment specifically includes:
s310, when the acquisition time is reached, acquiring the current temperature T of the windshield glassn。
S320, judging TnIf the temperature is within the low-temperature protection heating range (— ∞, 0), if so, S330 is executed, and if not, S340 is executed.
S330, setting the heating power of the windshield glass to be half of the maximum heating power through the 50% duty ratio, executing the heating operation, and returning to the step S320.
The period of the duty cycle is matched with the frequency of the helicopter alternating current power supply, for example, the frequency of the helicopter alternating current power supply is 400Hz, and in order to avoid the occurrence of second harmonic, the period of the duty cycle should be an integral multiple of 2.5 ms.
S340, judging TnWhether it is in the accelerated heating interval [0, T ]0) If yes, go to S350, otherwise go to S360.
Wherein, T0The critical temperature for safe heating of the windshield is, for example, 10 degrees celsius.
S350, setting the heating power of the windshield glass to the maximum heating power by the 100% duty ratio and performing the heating operation, and returning to perform S340.
S360, judging TnWhether or not in constant-speed heating interval0，Tt-1), if so, perform S370, otherwise, perform S3110.
S370, judging the current temperature TnAnd the historical temperature T of the previous momentn-1The relationship between the temperature difference and the preset temperature difference value T, if Tn-Tn-1If T, then S380 is executed, if Tn-Tn-1< T, S390 is executed, if Tn-Tn-1S3100 is executed if t.
Wherein, TnTemperature at the present moment (n time points), Tn-1The temperature at the previous time (n-1 time point) is t, which is a preset temperature difference value, and t may be specifically 0.05 ℃.
S380, setting the heating power of the windshield glass as a first heating power P1And performing a heating operation, P1＝Pn*r1＝Pn*(1-Kp*((Tn-Tn-1) -t)), return to performing S360.
Wherein r is1Is a first power adjustment factor, PnHeating power at the present time (n time points), KpThe parameters are adjusted (typically an integer between 20 and 100).
S390, setting the heating power of the windshield glass as a second heating power P2And performing a heating operation, P2＝Pn*r2＝Pn*(1+Kp*(t-(Tn-Tn-1) ) to return to execution S360.
Wherein r is2For the second power adjustment factor, PnHeating power at the present time (n time points), KpThe parameters are adjusted (typically an integer between 20 and 100).
S3100, setting the heating power of the windshield glass to the heating power P at the current momentnAnd performs the heating operation, returning to the execution of S360.
S3110, determining TnWhether or not in the high temperature critical heating interval [ T ]t-1，Tt) If yes, go to S3120, otherwise, go to S3130.
S3120, according to formula P ═ Pn*kn+Pn-2*kn-2+Pn-4*kn-4+…+Pn-2m*kn-2mThe heating power of the windshield glass is determined and the heating operation is performed, returning to S3110.
Wherein k isn+kn-2+kn-4+…+kn-2m＝1，kn、kn-2、kn-4、…、kn-2mAnd sequentially decreasing, wherein the value of m is specifically set according to the actual situation.
S3130, determining TnWhether or not it is in the high temperature cut-off heating interval [ T ]t, + ∞), if yes, execute S3140, if no, execute S320.
S3140, the heating power of the windshield is determined to be zero, the heating operation is not performed, and the process returns to S3130.
When the preset heating function of the windshield is turned on, the above-mentioned cyclic process is executed until the preset heating function of the windshield is turned off.
For the sake of brevity, the present embodiment is not explained in detail herein, and reference is made to the aforementioned embodiments for further description.
In the technical scheme, the heating control of the helicopter windshield is realized by adopting a sectional control strategy: the heating control strategy in the low-temperature protection heating region solves the problem that the windshield glass is easy to crack when heated at the ambient temperature below zero; the heating control strategy in the accelerated heating interval improves the speed of the windshield glass reaching the target heating temperature; the heating control strategy in the constant-speed heating interval improves the controllability of the temperature rise of the windshield glass, so that the heating power of the windshield glass is constant as much as possible, and the temperature rise speed is constant as much as possible; the heating control strategy in the high-temperature critical heating interval solves the problem that the temperature of the windshield cannot reach the target heating temperature under the severe environment condition; the heating control strategy in the high-temperature cut-off heating interval solves the problem that the temperature of the windshield glass exceeds the target heating temperature in a large range. Therefore, the stability, the accuracy and the controllability of the preset heating function of the helicopter windshield glass are enhanced, the normal and good work of the windshield glass is ensured, a clear visual field is provided for a helicopter driver, and the service life and the operation safety of the windshield glass are also enhanced.
Example four
Fig. 4 is a schematic structural diagram of a heating control device for a helicopter windshield according to a fourth embodiment of the present invention, which can be applied to the case of controlling the heating of the windshield when the "defogging" or "anti-icing" function of the helicopter windshield is activated, and the device can be implemented in software and/or hardware, and can be generally integrated into a processor. As shown in fig. 4, the heating control device for a helicopter windshield specifically comprises: a temperature acquisition module 410, a heating power first determination module 420, and a heating cycle module 430. Wherein,
the temperature acquisition module 410 is used for acquiring the current temperature of the windshield when the acquisition time is reached;
a first heating power determining module 420, configured to determine, according to a temperature difference between the current temperature and a historical temperature of the windshield at a previous collection time, a heating power matching the temperature difference;
and the heating circulation module 430 is configured to control the heating device to perform heating processing on the windshield glass according to the heating power, and then return to perform the operation of obtaining the current temperature of the windshield glass when the acquisition time is reached, so as to control the windshield glass to be heated to the target heating temperature at a constant heating speed.
According to the technical scheme provided by the embodiment of the invention, when the acquisition time is reached, the current temperature of the windshield glass is obtained, the heating power of the next acquisition time is determined according to the difference value between the current temperature of the windshield glass and the historical temperature of the windshield glass at the previous acquisition time, the heating operation is executed according to the determined heating power of the next acquisition time, and when the next acquisition time is reached, the current temperature of the windshield glass is obtained again, so that the heating treatment on the windshield glass is circularly realized, the windshield glass can be controlled to be heated to the target heating temperature according to the constant heating speed, the controllability of the heating speed of the windshield glass when the defogging and anti-icing functions of the helicopter windshield glass are started is improved, the normal work of the windshield glass is ensured, and the problem of temperature rise overshoot of the windshield glass is avoided.
Further, the heating power first determining module 420 is specifically configured to determine, if the current temperature is in the constant-speed heating interval, the heating power matched with the temperature difference according to the temperature difference between the current temperature and the historical temperature at the previous time.
Further, the heating power first determining module 420 is specifically configured to determine the heating power of the windshield as a first heating power if a temperature difference value between the current temperature and the historical temperature at the previous time is greater than a preset temperature difference value, where the first heating power is less than the heating power at the current time;
if the temperature difference value between the current temperature and the historical temperature at the previous moment is smaller than a preset temperature difference value, determining the heating power of the windshield glass as a second heating power, wherein the second heating power is larger than the heating power at the current moment;
and if the temperature difference value between the current temperature and the historical temperature at the previous moment is equal to the preset temperature difference value, determining the heating power of the windshield glass as the heating power at the current moment.
Specifically, the first heating power is determined by the product of the heating power at the current moment and a first power adjustment coefficient, and the second heating power is determined by the product of the heating power at the current moment and a second power adjustment coefficient;
and the first power adjustment coefficient and the second power adjustment coefficient are determined according to the temperature difference between the current temperature and the historical temperature at the previous moment, the preset temperature difference value and an adjustment parameter.
Further, the heating control device for a helicopter windshield further comprises: a second heating power determination module, a third heating power determination module, a fourth heating power determination module and a fifth heating power determination module, wherein,
a second heating power determination module, configured to determine the heating power of the windshield as an overshoot-prevention heating power if the current temperature is in a low-temperature protection heating interval, where the overshoot-prevention heating power is smaller than a maximum heating power;
a heating power third determination module, configured to determine the heating power of the windshield glass to be the maximum heating power if the current temperature is in an accelerated heating interval;
the heating power fourth determination module is used for determining the heating power of the windshield glass according to the heating power variation trend of the windshield glass if the current temperature is in a high-temperature critical heating interval;
and the heating power fifth determination module is used for determining the heating power of the windshield glass to be zero if the current temperature is in a high-temperature cutoff heating interval.
Further, the heating power fourth determination module is specifically configured to calculate the heating power of the windshield according to the heating power of the windshield at the current time and the heating power of the windshield at least one historical time before the current time, where a calculation weight of the heating power of the current time is the largest, and calculation weights of the heating power of the windshield at least one historical time before the current time are sequentially decreased.
Specifically, the low-temperature protection heating interval is (— infinity, 0), and the accelerated heating interval is [0, T0) The constant-speed heating interval is [ T ]0，Tt-1) the high temperature critical heating interval is [ Tt-1，Tt) The high-temperature cutoff heating interval is [ T ]t,+∞)；
Wherein, T0Critical temperature, T, for safe heating of the windscreentIs the target heating temperature for the windshield.
The heating control device of the helicopter windshield can execute the heating control method of the helicopter windshield provided by any embodiment of the invention, and has corresponding functional modules and beneficial effects of the executed heating control method of the helicopter windshield.
EXAMPLE five
Fig. 5 is a schematic structural diagram of a computer device according to a fifth embodiment of the present invention. FIG. 5 illustrates a block diagram of an exemplary computer device 12 suitable for use in implementing embodiments of the present invention. The computer device 12 shown in FIG. 5 is only an example and should not bring any limitations to the functionality or scope of use of embodiments of the present invention. For example, the computer device mentioned in this embodiment may also be a DSP (Digital Signal Processing) chip, also called a Digital Signal processor.
As shown in FIG. 5, computer device 12 is in the form of a general purpose computing device. The components of computer device 12 may include, but are not limited to: one or more processors or processing units 16, a system memory 28, and a bus 18 that couples various system components including the system memory 28 and the processing unit 16.
The system memory 28 may include computer system readable media in the form of volatile memory, such as Random Access Memory (RAM)30 and/or cache memory 32. Computer device 12 may further include other removable/non-removable, volatile/nonvolatile computer system storage media. By way of example only, storage system 34 may be used to read from and write to non-removable, nonvolatile magnetic media (not shown in FIG. 5, and commonly referred to as a "hard drive"). Although not shown in FIG. 5, a magnetic disk drive for reading from and writing to a removable, nonvolatile magnetic disk (e.g., a "floppy disk") and an optical disk drive for reading from or writing to a removable, nonvolatile optical disk (e.g., a CD-ROM, DVD-ROM, or other optical media) may be provided. In these cases, each drive may be connected to bus 18 by one or more data media interfaces. System memory 28 may include at least one program product having a set (e.g., at least one) of program modules that are configured to carry out the functions of embodiments of the invention.
A program/utility 40 having a set (at least one) of program modules 42 may be stored, for example, in system memory 28, such program modules 42 including, but not limited to, an operating system, one or more application programs, other program modules, and program data, each of which examples or some combination thereof may comprise an implementation of a network environment. Program modules 42 generally carry out the functions and/or methodologies of the described embodiments of the invention.
The processing unit 16 executes programs stored in the system memory 28 to execute various functional applications and data processing, such as implementing a heating control method for a helicopter windshield according to an embodiment of the present invention. That is, the processing unit implements, when executing the program: when the acquisition time is reached, acquiring the current temperature of the windshield glass;
according to the temperature difference between the current temperature and the historical temperature of the windshield glass at the previous acquisition moment, determining the heating power matched with the temperature difference;
and controlling the heating equipment to heat the windshield glass according to the heating power, and then returning to execute the operation of obtaining the current temperature of the windshield glass when the acquisition time is reached so as to control the windshield glass to be heated to the target heating temperature according to the constant heating speed.
EXAMPLE six
A sixth embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements a method for controlling heating of a helicopter windshield, as provided in all embodiments of the present invention:
that is, the program when executed by the processor implements: when the acquisition time is reached, acquiring the current temperature of the windshield glass;
according to the temperature difference between the current temperature and the historical temperature of the windshield glass at the previous acquisition moment, determining the heating power matched with the temperature difference;
and controlling the heating equipment to heat the windshield glass according to the heating power, and then returning to execute the operation of obtaining the current temperature of the windshield glass when the acquisition time is reached so as to control the windshield glass to be heated to the target heating temperature according to the constant heating speed.
Any combination of one or more computer-readable media may be employed. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
A computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
Computer program code for carrying out operations for aspects of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, Smalltalk, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider).
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (7)
1. A method of controlling heating of a helicopter windshield, comprising:
when the acquisition time is reached, acquiring the current temperature of the windshield glass;
according to the temperature difference between the current temperature and the historical temperature of the windshield glass at the previous acquisition moment, determining the heating power matched with the temperature difference;
wherein determining the heating power matched with the temperature difference according to the temperature difference between the current temperature and the historical temperature at the previous moment comprises:
if the current temperature is in a constant-speed heating interval, determining heating power matched with the temperature difference value according to the temperature difference value between the current temperature and the historical temperature at the previous moment;
if the temperature difference value between the current temperature and the historical temperature at the previous moment is larger than a preset temperature difference value, determining the heating power of the windshield glass as a first heating power, wherein the first heating power is smaller than the heating power at the current moment;
if the temperature difference value between the current temperature and the historical temperature at the previous moment is smaller than a preset temperature difference value, determining the heating power of the windshield glass as a second heating power, wherein the second heating power is larger than the heating power at the current moment;
if the temperature difference value between the current temperature and the historical temperature at the previous moment is equal to the preset temperature difference value, determining the heating power of the windshield glass as the heating power at the current moment;
the first heating power is determined by the product of the heating power at the current moment and a first power adjustment coefficient, and the second heating power is determined by the product of the heating power at the current moment and a second power adjustment coefficient;
the first power adjustment coefficient and the second power adjustment coefficient are determined according to a temperature difference value between the current temperature and the historical temperature at the previous moment, the preset temperature difference value and an adjustment parameter;
and controlling the heating equipment to heat the windshield glass according to the heating power, and then returning to execute the operation of obtaining the current temperature of the windshield glass when the acquisition time is reached so as to control the windshield glass to be heated to the target heating temperature according to the constant heating speed.
2. The method of claim 1, further comprising, after obtaining the current temperature of the windshield, at least one of:
if the current temperature is in a low-temperature protection heating interval, determining the heating power of the windshield glass as an overshoot-prevention heating power, wherein the overshoot-prevention heating power is smaller than the maximum heating power;
determining the heating power of the windshield glass to be the maximum heating power if the current temperature is in an accelerated heating interval;
if the current temperature is in a high-temperature critical heating interval, determining the heating power of the windshield glass according to the heating power variation trend of the windshield glass;
and if the current temperature is in a high-temperature cutoff heating interval, determining the heating power of the windshield glass to be zero.
3. The method of claim 2 wherein determining the heating power of the windshield based on the trend of the heating power of the windshield comprises:
and calculating the heating power of the windshield glass according to the heating power of the windshield glass at the current moment and the heating power of at least one historical moment before the current moment, wherein the calculation weight of the heating power at the current moment is the largest, and the calculation weights of the heating power at the at least one historical moment before the current moment are sequentially decreased.
4. The method of claim 2,
the low-temperature protection heating interval is (— infinity, 0), and the accelerated heating interval is [0, T0) The constant-speed heating interval is [ T ]0，Tt-1) the high temperature critical heating interval is [ Tt-1，Tt) The high-temperature cutoff heating interval is [ T ]t,+∞)；
Wherein, T0Critical temperature, T, for safe heating of the windscreentIs the target heating temperature for the windshield.
5. A heating control device for a helicopter windshield comprising:
the temperature acquisition module is used for acquiring the current temperature of the windshield glass when the acquisition time is reached;
the heating power first determination module is used for determining the heating power matched with the temperature difference value according to the temperature difference value between the current temperature and the historical temperature of the windshield at the previous acquisition moment;
the first heating power determining module is further configured to determine, if the current temperature is in a constant-speed heating interval, heating power matched with the temperature difference according to the temperature difference between the current temperature and a historical temperature at a previous time;
the heating power first determination module is further configured to determine the heating power of the windshield as a first heating power if a temperature difference value between the current temperature and the historical temperature at the previous time is greater than a preset temperature difference value, wherein the first heating power is less than the heating power at the current time;
if the temperature difference value between the current temperature and the historical temperature at the previous moment is smaller than a preset temperature difference value, determining the heating power of the windshield glass as a second heating power, wherein the second heating power is larger than the heating power at the current moment;
if the temperature difference value between the current temperature and the historical temperature at the previous moment is equal to the preset temperature difference value, determining the heating power of the windshield glass as the heating power at the current moment;
the first heating power is determined by the product of the heating power at the current moment and a first power adjustment coefficient, and the second heating power is determined by the product of the heating power at the current moment and a second power adjustment coefficient;
the first power adjustment coefficient and the second power adjustment coefficient are determined according to a temperature difference value between the current temperature and the historical temperature at the previous moment, the preset temperature difference value and an adjustment parameter;
and the heating circulation module is used for controlling the heating equipment to heat the windshield glass according to the heating power and then returning to execute the operation of obtaining the current temperature of the windshield glass when the acquisition time is reached so as to control the windshield glass to be heated to the target heating temperature according to the constant heating speed.
6. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the method according to any of claims 1-4 when executing the program.
7. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the method according to any one of claims 1-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910681619.6A CN110422312B (en) | 2019-07-26 | 2019-07-26 | Heating control method, device, equipment and medium for helicopter windshield |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910681619.6A CN110422312B (en) | 2019-07-26 | 2019-07-26 | Heating control method, device, equipment and medium for helicopter windshield |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110422312A CN110422312A (en) | 2019-11-08 |
| CN110422312B true CN110422312B (en) | 2021-06-11 |
Family
ID=68412615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910681619.6A Active CN110422312B (en) | 2019-07-26 | 2019-07-26 | Heating control method, device, equipment and medium for helicopter windshield |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110422312B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112428925A (en) * | 2020-12-02 | 2021-03-02 | 安徽江淮汽车集团股份有限公司 | Control method, device and equipment for heating intelligent rearview mirror and storage medium |
| CN112947212B (en) * | 2021-03-01 | 2022-08-02 | 合肥工业大学 | An intelligent defogging system for transparent conductive film based on single chip microcomputer |
| CN114056581B (en) * | 2021-12-20 | 2023-11-28 | 中国航空工业集团公司西安飞机设计研究所 | Windshield heating control method and system |
| CN115447754B (en) * | 2022-10-12 | 2024-09-06 | 中国航空工业集团公司西安飞机设计研究所 | Aircraft windshield anti-fog system |
| CN117062404B (en) * | 2023-08-15 | 2024-02-23 | 湖南恩智测控技术有限公司 | Battery simulator control method, device and storage medium |
| CN119396004B (en) * | 2024-12-30 | 2025-04-25 | 远东幕墙(珠海)有限公司 | Glass thermal cycle control method and related device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103444259A (en) * | 2011-03-22 | 2013-12-11 | 法国圣戈班玻璃厂 | Method and arrangement for de-icing a transparent window using an electric heating device |
| CN104897720A (en) * | 2015-06-17 | 2015-09-09 | 四川大学 | Temperature-controllable real-time temperature acquisition system for heat transfer coefficient evaluation |
| CN104919893A (en) * | 2012-12-20 | 2015-09-16 | 法国圣戈班玻璃厂 | Pane having an electric heating layer |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE7118725U (en) * | 1971-05-13 | 1971-08-05 | Gutehoffnungshuette Ag | FLEXIBLE SURFACE HEATING ELEMENT FOR HEATING SMALL ENCLOSED AREAS |
| FR2891241B1 (en) * | 2005-09-23 | 2009-03-13 | Airbus France Sas | SYSTEM FOR DEFROSTING AND / OR DEMANDING AN AIRCRAFT SURFACE, METHOD FOR CONTROLLING SUCH A SYSTEM, AND AIRCRAFT EQUIPPED WITH SUCH A SYSTEM. |
| US9578686B2 (en) * | 2014-04-09 | 2017-02-21 | The Boeing Company | Aircraft window heating system |
| CN105807812A (en) * | 2014-12-30 | 2016-07-27 | 中核控制系统工程有限公司 | PID temperature control method and temperature control module |
| BR112017017598A2 (en) * | 2015-02-16 | 2018-05-08 | Ppg Industries Ohio, Inc. | system for monitoring article performance, aircraft windshield and transparency for a vehicle |
| US10773811B2 (en) * | 2017-12-06 | 2020-09-15 | The Boeing Company | Window heating control system and methods of operating the same |
-
2019
- 2019-07-26 CN CN201910681619.6A patent/CN110422312B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103444259A (en) * | 2011-03-22 | 2013-12-11 | 法国圣戈班玻璃厂 | Method and arrangement for de-icing a transparent window using an electric heating device |
| CN104919893A (en) * | 2012-12-20 | 2015-09-16 | 法国圣戈班玻璃厂 | Pane having an electric heating layer |
| CN104897720A (en) * | 2015-06-17 | 2015-09-09 | 四川大学 | Temperature-controllable real-time temperature acquisition system for heat transfer coefficient evaluation |
Non-Patent Citations (1)
| Title |
|---|
| 某型机风挡加温系统控制规律的数值模拟;林丽，马庆林，常红亮;《航空工程进展》;20141130;第5卷(第4期);第511-512页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110422312A (en) | 2019-11-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110422312B (en) | Heating control method, device, equipment and medium for helicopter windshield | |
| CN103809244B (en) | The heating control system and method for a kind of optical fiber hot soarfing device | |
| CN109347405B (en) | A method and system for estimating rotor temperature of a motor | |
| AU2017404568B2 (en) | Method and device for controlling output power of a wind turbine | |
| CN105738702B (en) | A kind of NTC thermistor test method for air conditioning for automobiles | |
| CN104955178A (en) | Heating method and heater | |
| CN106872042A (en) | The full-automatic wide temperature range calibration system of infrared optical system | |
| CN108903635A (en) | A kind of temperature display of insulating pot determines method | |
| CN108245006A (en) | Electric kettle heating temperature control method and electric kettle | |
| CN114995545A (en) | Control method, device, equipment and medium for vehicle thermal management system | |
| CN113974448A (en) | Method and device for acquiring temperature regulation strategy and electronic equipment | |
| CN119911169A (en) | Battery charging preheating method and device, vehicle, electronic device and storage medium | |
| CN103135635B (en) | Current control temperature method based on global position system (GPS) space-time compensation | |
| CN111839209A (en) | Display temperature control method, device, equipment and readable storage medium | |
| CN116811656B (en) | Power battery quick charge control method, device, equipment and storage medium | |
| WO2024193664A1 (en) | Thermal management method and apparatus, vehicle, electronic device and storage medium | |
| CN117350047A (en) | A method for estimating DC bus capacitance temperature of electric vehicle drive motor controller | |
| CN111289495A (en) | Raman detection and analysis method of transformer oil dissolved gas based on particle swarm optimization SVM | |
| CN114711638A (en) | Control method and device of baking equipment, baking equipment and storage medium | |
| CN111367189B (en) | Cooking control method, cooking appliance and storage medium | |
| CN105302188A (en) | Method for controlling temperature difference between two ends of U-shaped frame | |
| CN104742684B (en) | A kind of method controlling air conditioning for automobiles to protect temperature | |
| CN110275676B (en) | Solid state disk control method and device and solid state disk system | |
| CN115855455B (en) | Method and device for determining screen temperature of display and storage medium | |
| CN110319592A (en) | Control method of water heater and water heater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100095 Building 5, yard 1, gaolizhang Road, Haidian District, Beijing Patentee after: Beijing Shendao Technology Co.,Ltd. Address before: 100095 Building 5, yard 1, gaolizhang Road, Haidian District, Beijing Patentee before: BEIJING SHENDAO KEXUN SCIENCE AND TECHNOLOGY DEVELOPMENT Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |