Monitoring system and monitoring method for early warning of the risk of breakage of heated glass

Abstract

The application discloses a monitoring system and a monitoring method for early warning of a breakage risk of heated glass. The monitoring system comprises: an infrared camera device, which can collect temperature cloud map data of the whole surface of the heated glass to be monitored in real time and send the data to a data processing module; the data processing module can determine the temperature distribution of each region on the heated glass according to the temperature cloud map data, and judge whether the temperature distribution meets a breakage early warning condition; when the breakage early warning condition is met, an alarm signal is sent; wherein the breakage early warning condition is defined by a combination of the value ranges of multiple early warning parameters. According to the monitoring system and the monitoring method for early warning of the breakage risk of the heated glass, a solution for actively monitoring and early warning of the breakage risk of the heated glass is provided, and a more accurate and reliable risk early warning can be provided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of early warning of the risk of breakage of heated glass, and in particular to a monitoring system and a monitoring method suitable for early warning of the risk of breakage of heated glass. BACKGROUND

[0002] In the fields of aviation, aerospace and navigation, etc., in order to avoid the adverse effects on the field of vision caused by icing, frosting, fogging and the like of various types of glass, heated glass is generally widely used. The use of heated glass is of great significance to the safety improvement in aviation, aerospace and navigation when encountering extreme weather conditions. Generally, such heated glass uses electric heating technology to avoid icing, frosting, fogging and the like

[0003] However, the electric heating technology generally used by the heated glass also lays hidden dangers or risks for the accidental breakage of the glass on the other hand. Local hot spots, cold spots and temperature differences are easily formed in heating, which may cause local stress and further lead to breakage or damage of the glass, and deeper factors such as arc discharge or product aging leading to abnormal heating resistance may further exacerbate the risk of breakage of the glass.

[0004] In the fields of aviation, aerospace and navigation, etc., where heated glass is widely used, the glass arranged in many cases usually has an important isolation function, and thus the breakage of the glass will cause safety impacts such as pressure relief, temperature relief, flow relief and the like.

[0005] For example, taking the field of aviation as an example, on May 14, 2018, the main windshield glass of the 3U8633 flight of Sichuan Airlines broke during the cruise phase to Lhasa, but fortunately the flight was successfully landed by the excellent skills of the pilot, and greater losses were avoided. According to the accident syndrome investigation of the Civil Aviation Administration of China, it was found that this problem is not an isolated case. In the domestic aviation accident investigation information in recent years, there have been 6 cases of local overheating caused by arc discharge, which ultimately led to the breakage of the windshield double-layer glass structure.

[0006] At present, the solutions widely used in the field of security / defense for the risk of breakage of heated glass are generally passive monitoring after the breakage of the glass, that is, various means are used to immediately identify and alarm after the breakage of the glass. However, it is obvious that such a passive monitoring solution has very limited effect on the application scenarios of heated glass in the fields of aviation, aerospace and navigation, etc.

[0007] In addition to the above solutions, there are few active early warning solutions in the prior art, but the actual implementation effect is poor. For example, a glass supplier once proposed a heating glass breakage risk early warning solution realized by monitoring the anomalies (voltage or current spikes) of the power supply arc. However, although this solution can theoretically actively predict the breakage risk in advance, in actual implementation, since each arc discharge is large or small, not every discharge will cause the breakage of the heating glass, and several discharges, each discharge amount reaching a certain condition, will cause local hot spots and the risk of glass breakage. It is difficult to set a sufficiently accurate monitoring criterion, which leads to poor accuracy of the early warning of the glass breakage risk in the actual implementation of this solution, and thus it has not been widely promoted and used.

[0008] Therefore, there is an urgent need to provide a new monitoring technology for early warning of the breakage risk of heating glass to at least partially alleviate or solve the above problems and defects existing in the prior art solutions SUMMARY

[0009] The technical problem to be solved by the present application is to overcome the defects of the prior art early warning technology for the breakage risk of heating glass, that is, it is difficult to provide sufficiently accurate and reliable proactive risk early warning. A new monitoring system and method for early warning of the breakage risk of heating glass are proposed.

[0010] The present application solves the above technical problems by the following technical solutions:

[0011] The present application provides a monitoring system for early warning of the breakage risk of heating glass, characterized in that the monitoring system comprises:

[0012] An infrared camera device arranged to be able to collect temperature cloud map data of the entire surface of the heating glass to be monitored in real time, and send the temperature cloud map data to a data processing module, wherein the temperature cloud map data contains a time parameter;

[0013] The data processing module is configured to determine the temperature distribution of each region on the heating glass according to the temperature cloud map data, and to judge whether the temperature distribution meets the breakage early warning condition, and to issue an alarm signal when the breakage early warning condition is met.

[0014] The breakage early warning condition is defined by a combination of the value ranges of a plurality of early warning parameters, including the temperature anomaly area, the temperature anomaly duration, and the abnormal temperature threshold or the abnormal temperature difference threshold.

[0015] According to an embodiment of the present application, the data processing module is further configured to determine different breakage warning conditions for different regions on the heated glass, wherein a second type of breakage warning condition determined for a region located at an edge of the heated glass is more stringent than a first type of breakage warning condition determined for a region located at a middle position of the heated glass.

[0016] According to an embodiment of the present application, the monitoring system further comprises:

[0017] a glass heating controller disposed on a power supply loop of the heated glass and communicatively connected to the data processing module, so as to be able to cut off the heating operation of the heated glass upon receiving the alarm signal sent by the data processing module.

[0018] According to an embodiment of the present application, the heated glass is provided with an electric heating film connected to the glass heating controller and a heating power supply via a wire and powered by the heating power supply.

[0019] According to an embodiment of the present application, the data processing module is further configured to determine a third type of breakage warning condition for a region near a connection between the electric heating film and the wire, the third type of breakage warning condition being more stringent than the second type of breakage warning condition.

[0020] According to an embodiment of the present application, the glass heating controller is provided with a cut-off switch in a power supply loop of the electric heating film, and the data processing module is further configured to control the cut-off switch to be turned off when it is determined that the breakage warning condition is met.

[0021] According to an embodiment of the present application, the monitoring system further comprises:

[0022] a temperature cloud atlas database for storing all the temperature cloud atlas data and marking the corresponding temperature cloud atlas data when a breakage of the heated glass occurs.

[0023] According to an embodiment of the present application, the monitoring system further comprises:

[0024] a machine learning module configured to access the temperature cloud atlas database and determine or update the breakage warning condition through a machine learning algorithm based on the data stored in the temperature cloud atlas database.

[0025] The present application also provides a monitoring method for warning a breakage risk of a heated glass, characterized in that the monitoring method comprises the following steps:

[0026] acquire temperature cloud data of the whole surface of the heating glass to be monitored in real time, wherein the temperature cloud data comprises a time parameter;

[0027] determine temperature distribution of each region on the heating glass according to the acquired temperature cloud data;

[0028] determine whether the temperature distribution meets a breakage early warning condition, and send an alarm signal when the temperature distribution meets the breakage early warning condition;

[0029] wherein the breakage early warning condition is defined by a combination of value ranges of a plurality of early warning parameters, and the plurality of early warning parameters comprises temperature abnormal area, temperature abnormal duration, and abnormal temperature threshold or abnormal temperature difference threshold.

[0030] According to an embodiment of the present application, the heating glass is provided with an electric heating film, the electric heating film is connected to a glass heating controller and a heating power supply via a wire, and is powered by the heating power supply.

[0031] According to an embodiment of the present application, the monitoring method further comprises:

[0032] different breakage early warning conditions are determined for regions at different positions on the heating glass, wherein a first type of breakage early warning condition is determined for a region at a middle position of the heating glass, a second type of breakage early warning condition is determined for a region at an edge position of the heating glass, and a third type of breakage early warning condition is determined for a region at a position near a connection between the electric heating film and the wire;

[0033] wherein the third type of breakage early warning condition is stricter than the second type of breakage early warning condition, and the second type of breakage early warning condition is stricter than the first type of breakage early warning condition.

[0034] According to an embodiment of the present application, the monitoring method further comprises:

[0035] when it is determined that the temperature distribution meets the breakage early warning condition, power supply to the electric heating film is cut off to stop the electric heating film from working.

[0036] On the basis of common sense in the art, the above-mentioned preferred conditions can be combined in any manner to obtain preferred examples of the present application.

[0037] The positive progress effect of the present application is that:

[0038] The monitoring system and monitoring method for early warning of breakage risk of heating glass according to the present application provide a solution that can actively monitor and early warn of breakage risk of heating glass, and can provide more accurate and reliable risk early warning. BRIEF DESCRIPTION OF DRAWINGS

[0039] Figure 1 A schematic view of a monitoring system for early warning of the risk of breakage of a heated glass according to a preferred embodiment of the present application is shown.

[0040] Legend of the figures

[0041] 1: heated glass

[0042] 11: electric heating film

[0043] 2: infrared camera

[0044] 3: data processing module

[0045] 4: wire

[0046] 5: glass heating controller

[0047] 6: signal transceiver DETAILED DESCRIPTION

[0048] The preferred embodiments of the present application will be further described in conjunction with the drawings of the specification, the following description is exemplary and not limiting the present application, any other similar cases also fall within the scope of the present application.

[0049] In the following detailed description, directional terms such as "left", "right", "up", "down", "front", "back" and the like are used with reference to the orientation of the figures described. The components of the embodiments of the present application can be placed in various different orientations, and the directional terms are used for the purpose of example and not limitation.

[0050] Figure 1 A monitoring system for early warning of the risk of breakage of a heated glass 1 is schematically shown in FIG. 1, but it should be understood that, Figure 1 In FIG. 1, only one heated glass 1 is shown for the purpose of easy understanding, in fact, the monitoring system can monitor and early warn the risk of breakage of multiple heated glasses 1.

[0051] Reference Figure 1 As shown in FIG. 1, the monitoring system for early warning of the risk of breakage of a heated glass 1 according to a preferred embodiment of the present application comprises an infrared camera 2 and a data processing module 3, wherein the infrared camera 2 is arranged to be able to collect temperature cloud data of the entire surface of the heated glass 1 to be monitored in real time, and send the temperature cloud data to the data processing module 3, wherein the temperature cloud data contains a time parameter. The data processing module 3 is configured to be able to determine the temperature distribution of each region on the heated glass 1 according to the temperature cloud data, and to judge whether the temperature distribution meets the breakage early warning condition, and to issue an alarm signal when the breakage early warning condition is met.

[0052] wherein the rupture warning condition is defined by a combination of value ranges of a plurality of warning parameters, the plurality of warning parameters comprising the temperature anomaly area, the temperature anomaly duration, and the anomaly temperature threshold or the anomaly temperature difference threshold.

[0053] For example, a certain rupture warning condition can be defined as follows: the temperature anomaly area is within a certain predetermined area range, e.g. greater than 20 mm2, the temperature anomaly duration is at least a certain number of seconds, e.g. greater than 1 second, and the temperature of the area at the temperature anomaly area exceeds a certain predetermined temperature value, e.g. the temperature of the area exceeds 150°. When the data processing module 3 determines that the determined temperature distribution satisfies the above rupture warning condition for at least a certain area among the areas on the heated glass 1, an alarm signal will be issued to indicate the risk of rupture of the heated glass 1.

[0054] Alternatively, a certain rupture warning condition can also be defined as follows: the temperature anomaly area is within a certain predetermined area range, e.g. greater than 30 mm2, the temperature anomaly duration is at least a certain number of seconds, e.g. greater than 2 seconds, and the temperature difference of the temperature of the area at the temperature anomaly area compared to the temperature of the adjacent or neighboring area or compared to the average temperature of the entire glass exceeds a certain predetermined temperature difference value, e.g. the aforementioned temperature difference exceeds 30°.

[0055] According to some preferred embodiments of the present application, the data processing module 3 is further configured to determine different rupture warning conditions for areas at different positions on the heated glass 1, wherein a second type of rupture warning condition determined for an area located at the edge of the heated glass 1 is stricter than a first type of rupture warning condition determined for an area located at a middle position of the heated glass 1.

[0056] The advantage of this preferred embodiment is that different levels of warning conditions can be set according to the different degrees of rupture risk of different areas on the heated glass 1. It can be understood that the rupture warning condition referred to herein is stricter in the sense of risk warning, and thus it generally means that the rupture warning condition is more likely to be satisfied to issue an alarm signal. Generally speaking, this can be understood as a larger value range of the warning parameters.

[0057] For example, if rupture warning conditions A and B define the same range of temperature anomaly area and the same anomaly temperature threshold, and the temperature anomaly duration defined in the rupture warning condition A is greater than 2 seconds, while the temperature anomaly duration defined in the rupture warning condition B is greater than 3 seconds, then the rupture warning condition A is stricter than the rupture warning condition B.

[0058] According to some preferred embodiments of the present application, the monitoring system further comprises a glass heating controller 5, which is arranged on the power supply circuit of the heating glass 1 and is in communication connection with the data processing module 3, so as to be able to cut off the heating operation of the heating glass 1 after receiving the alarm signal sent by the data processor. In this way, when the monitoring system judges that there is a risk of glass breakage, the heating operation of the heating glass 1 will be cut off first to prioritize avoiding the risk of glass breakage rather than maintaining the conventional operating state of heating, thereby ensuring safety.

[0059] Further referring to Figure 1 As shown, according to some preferred embodiments of the present application, the heating glass 1 is provided with an electric heating film 11, which is connected to the glass heating controller 5 and the heating power supply via the wire 4 and is powered by the heating power supply. The data processing module 3 is further configured to be able to determine a third type of breakage warning condition for the area near the connection between the electric heating film 11 and the wire 4, and the third type of breakage warning condition is more stringent than the second type of breakage warning condition. The above-mentioned preferred embodiment is based on the recognition that, especially for the heating glass 1 used in the aviation industry such as airplanes, the temperature change of the area where the wire 4 connecting the electric heating film 11 is connected needs to be particularly concerned, because it is found in practice that the temperature change of this area is particularly prone to cause the risk of glass breakage.

[0060] In addition, in the above-mentioned preferred embodiment, in order to be able to set more refined and appropriate breakage warning conditions for different areas, the heating glass 1 can be further subjected to a grid division process first, and then different breakage warning conditions can be assigned to different types of grid areas, so as to further make the breakage warning of the monitoring system more accurate and reliable.

[0061] On the basis of the above-mentioned preferred embodiment, the glass heating controller 5 can be equipped with a cut-off switch in the power supply circuit of the electric heating film 11, and the data processing module 3 is further configured to be able to control the cut-off switch to be turned off when it is judged that the breakage warning condition is met.

[0062] Alternatively, the above-mentioned multiple types of breakage warning conditions can be pre-set and adjusted according to the accumulation of practical experience. For example, the breakage warning condition can be pre-set as follows. On the temperature distribution cloud map, if an area with a heating area greater than 25 square millimeters and a temperature exceeding 200℃ for more than 3 seconds appears, an alarm signal is sent. Or for example, on the entire glass heating cloud map, if there is a cold spot area or a hot spot area with a temperature difference greater than 100℃ for more than 3 seconds, an alarm signal is sent.

[0063] Further preferably, the monitoring system further comprises a temperature cloud atlas database and a machine learning module (not shown in the figure). The temperature cloud atlas database is configured to store all temperature cloud atlas data, and mark the corresponding temperature cloud atlas data when the heating glass 1 is cracked. The machine learning module is configured to access the temperature cloud atlas database, and determine or update the cracking warning condition based on the data stored in the temperature cloud atlas database by a machine learning algorithm.

[0064] Based on this preferred embodiment, the cracking warning condition and the related threshold condition are not directly given or set, but are generated and updated by a machine learning algorithm based on a large number of historical cloud temperature images collected after each flight of the aircraft equipped with the monitoring system and stored in the database. The machine learning algorithm will be updated as more images are collected, and the more historical cloud images including the cracking phenomenon, the more accurate the cracking warning condition determined by the machine learning algorithm. It can be understood that when the accuracy of the cracking warning signal from the monitoring system is high enough, the operator should check, maintain or replace the corresponding heating glass 1 as soon as possible when such a warning signal appears.

[0065] According to some preferred embodiments of the present application, the infrared camera device 2 has the ability of high resolution and high scanning frequency (above 1 Hz) to ensure the capture of clear and real-time temperature cloud distribution, and with reference to Figure 1 As shown, the infrared camera device 2 and other parts in the monitoring system can be provided with a signal transceiver 6, which can be a wireless signal transceiver supporting 5G high-capacity fast wireless transmission technology, for example, to be sufficient for real-time transmission of large-capacity image data. Of course, the signal transceiver 6 can also be realized by signal transmission lines alternatively.

[0066] Optionally, in some embodiments, the data processing module 3 can be a separate processor, or a processor integrated with the infrared camera device 2.

[0067] Some embodiments of the present application also provide a monitoring method for warning the cracking risk of the heating glass 1, which comprises the following steps:

[0068] Real-time acquisition of temperature cloud data of the entire surface of the heating glass 1 to be monitored, wherein the temperature cloud data contains a time parameter;

[0069] Determination of the temperature distribution of each region on the heating glass 1 according to the acquired temperature cloud data;

[0070] Judging whether the temperature distribution meets the cracking warning condition, and issuing an alarm signal when the cracking warning condition is met;

[0071] The rupture early warning condition is defined by a combination of value ranges of a plurality of early warning parameters, the plurality of early warning parameters including a temperature abnormal area, a temperature abnormal duration, and an abnormal temperature threshold or an abnormal temperature difference threshold.

[0072] Preferably, the heating glass 1 is provided with an electric heating film 11, the electric heating film 11 is connected to the glass heating controller 5 and a heating power supply via the wire 4, and is powered by the heating power supply.

[0073] Further preferably, the monitoring method further comprises:

[0074] Different rupture early warning conditions are determined for regions at different positions on the heating glass 1, wherein a first type of rupture early warning condition is determined for a region at a middle position of the heating glass 1, a second type of rupture early warning condition is determined for a region at an edge position of the heating glass 1, and a third type of rupture early warning condition is determined for a region at a position near a connection between the electric heating film 11 and the wire 4 of the heating glass 1;

[0075] The third type of rupture early warning condition is stricter than the second type of rupture early warning condition, and the second type of rupture early warning condition is stricter than the first type of rupture early warning condition.

[0076] Preferably, the monitoring method further comprises:

[0077] When it is determined that the temperature distribution meets the rupture early warning condition, the power supply to the electric heating film 11 is cut off so that the electric heating film 11 stops working.

[0078] Although the specific embodiments of the present application are described above, those skilled in the art should understand that these are only illustrative, the protection scope of the present application is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present application, and these changes and modifications all fall within the protection scope of the present application.

Claims

1. A monitoring system for early warning of the risk of breakage of heated glass, characterized in that, The monitoring system comprises: an infrared camera device provided with a signal transceiver and arranged to collect temperature cloud data of the entire surface of the heating glass in real time and transmit the temperature cloud data to a data processing module in real time through the signal transceiver, wherein the temperature cloud data contains a time parameter; the data processing module configured to determine the temperature distribution of each region on the heating glass according to the temperature cloud data and determine whether the temperature distribution meets the breakage warning condition, and send an alarm signal when the breakage warning condition is met; a temperature cloud database for storing all the temperature cloud data and marking the corresponding temperature cloud data when the heating glass breaks; a machine learning module configured to access the temperature cloud database and determine or update the breakage warning condition based on the data stored in the temperature cloud database through a machine learning algorithm; wherein the breakage warning condition is defined by a combination of numerical ranges of multiple warning parameters, including temperature anomaly area, temperature anomaly duration, and abnormal temperature threshold or abnormal temperature difference threshold.

2. The monitoring system of claim 1, wherein, The data processing module is further configured to determine different breakage warning conditions for regions at different positions on the heating glass, wherein the second type of breakage warning condition determined for regions located at the edge of the heating glass is more stringent than the first type of breakage warning condition determined for regions located at the middle position of the heating glass.

3. The monitoring system of claim 2, wherein, The monitoring system further comprises: a glass heating controller provided on the power supply circuit of the heating glass and in communication connection with the data processing module, so as to cut off the heating operation of the heating glass after receiving the alarm signal sent by the data processor.

4. The monitoring system of claim 2, wherein, The heating glass is provided with an electric heating film connected to the glass heating controller and a heating power supply via a wire and powered by the heating power supply.

5. The monitoring system of claim 4, wherein, The data processing module is further configured to determine a third type of breakage warning condition for a region near the connection between the electric heating film and the wire, which is more stringent than the second type of breakage warning condition.

6. The monitoring system of claim 4, wherein, The glass heating controller is equipped with a cut-off switch in the power supply circuit of the electric heating film, and the data processing module is further configured to control the cut-off switch to be turned off when it is determined that the breakage warning condition is met.

7. A monitoring method for early warning of the risk of breakage of a heated glass, characterized in that, The monitoring method comprises the following steps: collecting temperature cloud data of the entire surface of the heating glass to be monitored in real time by an infrared camera device provided with a signal transceiver, wherein the temperature cloud data contains a time parameter; determining the temperature distribution of each region on the heating glass according to the collected temperature cloud data; determining whether the temperature distribution meets the breakage warning condition and sending an alarm signal when the breakage warning condition is met; The temperature cloud data is stored in a temperature cloud database, and the corresponding temperature cloud data when the heated glass breaks is marked; The temperature cloud database is accessed, and the breakage warning condition is determined or updated by a machine learning algorithm based on the data stored in the temperature cloud database; The breakage warning condition is defined by a combination of value ranges of a plurality of warning parameters, including an abnormal temperature area, an abnormal temperature duration, and an abnormal temperature threshold or an abnormal temperature difference threshold.

8. The monitoring method of claim 7, wherein, The heated glass is provided with an electric heating film, the electric heating film is connected to a glass heating controller and a heating power supply via a wire, and is powered by the heating power supply.

9. The monitoring method of claim 8, wherein, The monitoring method further comprises: Different breakage warning conditions are determined for regions at different positions on the heated glass, wherein a first type of breakage warning condition is determined for a region at a middle position of the heated glass, a second type of breakage warning condition is determined for a region at an edge position of the heated glass, and a third type of breakage warning condition is determined for a region near a connection between the electric heating film and the wire of the heated glass; The third type of breakage warning condition is more stringent than the second type of breakage warning condition, and the second type of breakage warning condition is more stringent than the first type of breakage warning condition.

10. The monitoring method of claim 8, wherein, The monitoring method further comprises: When it is judged that the temperature distribution meets the breakage warning condition, the power supply to the electric heating film is cut off, so that the electric heating film stops working.

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