Video device and control method

Abstract

The present invention relates to the technical field of video equipment, and discloses a video equipment and a control method. The present invention discloses a video equipment, which includes an electrically heated glass and a shooting module. The electrically heated glass is connected to a power source so that the electrically heated glass generates heat to ensure that the temperature of the electrically heated glass is kept within a relatively high temperature range, and to prevent the problem of liquefaction or condensation of water vapor with a relatively low temperature from occurring when it encounters the electrically heated glass with a relatively low temperature. By filling the cavity of the equipment with dry nitrogen, it is ensured that the shooting module will not be affected in its use state by the liquefaction or condensation of water vapor. The present invention also discloses a control method, which controls the problem of liquefaction or condensation of the electrically heated glass and the shooting module by controlling the temperature of the electrically heated glass and the content of water vapor in the cavity of the device.

Description

Technical Field

[0001] The present invention relates to the technical field of video equipment, and in particular to a video equipment and a control method thereof. Background Art

[0002] With the popularization of video equipment, video equipment is often used in various scenarios and conditions. The shooting module in the cavity shoots external information through the glass located on the shell. When the temperature difference between the front and back of the environment where the video equipment is located is large, liquid or ice condensed from water vapor in the air is likely to form on the glass and the shooting module in the cavity, making the information received by the video receiving device blurred and even causing the video output function to be lost. Summary of the invention

[0003] In order to overcome the deficiencies of the prior art, the present invention provides a video device, which makes it difficult for water vapor in the air to liquefy to form liquid or ice on the electric heating glass and the shooting module, thereby ensuring the normal operation of the electric heating glass and the shooting module.

[0004] The invention also discloses a control method.

[0005] The technical solution adopted by the present invention to solve its technical problem is:

[0006] A video device comprises: electrically heated glass, a shooting module power supply and a shell, wherein the shell has a cavity for storing dry gas, the shooting module is located in the cavity, one end of the electrically heated glass faces the cavity, and the other end faces the outside of the shell, and the power supply is located in the cavity and connected to the electrically heated glass.

[0007] As an improvement to the above solution, a connecting piece is also included, one end of which is connected to a power source, and the other end of which is connected to the electrically heated glass.

[0008] As a further improvement to the above scheme, it also includes a temperature sensor and a signal line. The temperature sensor is thermally connected to the electric heating glass, and the temperature sensor is connected to the power supply through the signal line.

[0009] As a further improvement to the above solution, the housing includes a shell and a cover plate, the cover plate is sealed and connected to the shell, the electrically heated glass is located on the shell, and the connector and the power supply are located in a cavity formed by the cover plate and the shell.

[0010] As a further improvement to the above solution, it also includes a one-way valve installed on the shell, and the one-way valve is connected to the cavity.

[0011] As a further improvement to the above solution, a humidity sensor is also included, and the humidity sensor is located in the cavity.

[0012] As a further improvement to the above solution, a display is connected to the housing, and the display is connected to the humidity sensor.

[0013] As a further improvement to the above solution, the display can display the percentage of water vapor content in the cavity through feedback from the humidity sensor, and / or the display changes color when the measurement value of the humidity sensor is greater than the humidity critical value.

[0014] A control method based on a video device, comprising:

[0015] S1: Measure the water vapor content in the cavity. When the measured value is greater than the humidity critical value, judge:

[0016] If the sealing performance of the housing is good, directly execute step S2;

[0017] If there is a defect in the sealing of the housing, after the defect is repaired, step S2 is performed; S2: the gas in the cavity is evacuated and then dry gas is filled into the cavity.

[0018] As an improvement to the above technical solution, before, simultaneously with or after step S1, step S4 is also included: detecting the temperature of the electrically heated glass, heating the electrically heated glass when the temperature of the electrically heated glass reaches the lower critical value, and stopping heating the electrically heated glass when the temperature of the electrically heated glass reaches the upper critical value.

[0019] The beneficial effects of the present invention are as follows: the electrically heated glass is heated by the connecting piece 8 so that the temperature of the electrically heated glass is always maintained within a certain range, and by flushing dry gas into the cavity, the combination of the two alleviates the problem that the water vapor in the air forms liquid or ice on the electrically heated glass and / or the shooting module due to the low temperature of the electrically heated glass and / or the shooting module, thereby affecting the shooting. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0021] Figure 1 is a three-dimensional schematic diagram of an embodiment of the present invention;

[0022] Figure 2 yes Figure 1 A three-dimensional schematic diagram from another angle;

[0023] Figure 3 yes Figure 2 Exploded diagram of

[0024] Figure 4 This is a schematic diagram of the heating process of electrically heated glass;

[0025] Figure 5 It is a schematic diagram of the display feedback process. DETAILED DESCRIPTION

[0026] The following will be combined with the embodiments and drawings to clearly and completely describe the concept, specific structure and technical effects of the present invention, so as to fully understand the purpose, scheme and effect of the present invention. It should be noted that the embodiments and features in the embodiments of this application can be combined with each other without conflict.

[0027] It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it may be directly fixed or connected to the other feature, or it may be indirectly fixed or connected to the other feature. In addition, the descriptions of up, down, left, right, front, back, etc. used in the present invention are only relative to the relative positional relationship of the components of the present invention in the drawings.

[0028] In addition, unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art. The terms used in this specification are only for describing specific embodiments, not for limiting the present invention. The term "and / or" used herein includes any combination of one or more related listed items.

[0029] The present invention discloses a video device, which includes a glass located on a shell and a shooting module for shooting external information through the glass. The purpose of the device is to prevent water vapor with a higher temperature outside or inside the device from liquefying (or condensing) when encountering glass and / or a shooting module with a lower temperature, and forming liquid or ice on the glass and / or the shooting module. The device solves the above problems in two ways: 1. Controlling the temperature of the electrically heated glass within a relatively high temperature range so that the water vapor encountering the electrically heated glass will not condense into liquid or ice; 2. Controlling the water vapor content in the device so that the water vapor content in the device will not be too much, thereby reducing the problem of water vapor liquefaction.

[0030] Reference Figure 1 and Figure 2 , Figure 1 is a three-dimensional schematic diagram of an embodiment of the present invention, Figure 2 yes Figure 1 A three-dimensional schematic diagram from another angle, comprising: a housing 1, a cover plate 2, an electrically heated glass 3, a connecting port 4, a one-way valve 5 and a display 6.

[0031] The device includes a shell 1 and a cover plate 2, which are connected to form a cavity. The cavity contains a shooting module (not shown). The shell 1 and the cover plate 2 are sealed so that the air inside the cavity does not circulate with the outside air.

[0032] The shell 1 includes an electrically heated glass 3, and the shell 1 includes a shooting module. The shooting module shoots external information through the heated glass 3 to complete information collection. The cover plate 2 also includes a connecting port 4, and the information collected by the electric shooting module is transmitted to the outside through the connecting port 4.

[0033] The cover plate 2 also includes a one-way valve 5, which passes through the cover plate 2 and is connected to the cavity. Through the one-way valve 5, an external device can evacuate the air in the cavity and fill the cavity with dry nitrogen to replace the original air in the cavity. This method can keep the water vapor content of the gas in the cavity at a low level, preventing the water vapor in the cavity from encountering a low-temperature shooting module and liquefying into liquid or ice on the shooting module.

[0034] The cover plate 2 also includes a display 6, and the cavity includes a humidity sensor (not shown). The display 6 is connected to the humidity sensor. The humidity sensor can reflect the percentage of water vapor content in the gas in the cavity, and the display 6 displays the value of the water vapor content percentage.

[0035] When the percentage of water vapor content detected by the humidity sensor is higher than the humidity critical value (manually set), the background color of the display 6 will change. As an embodiment, the humidity critical value is 30%. When the percentage of water vapor content in the cavity detected by the humidity display 6 is less than 30%, the background color of the display 6 is light blue. When the percentage of water vapor content in the cavity detected by the humidity display 6 is greater than or equal to 30%, the background color of the display 6 changes to pink.

[0036] As an embodiment, the display may only display the detected percentage of water vapor content in the cavity without the function of changing color.

[0037] As another embodiment, the display 6 may not have the function of displaying the percentage of water vapor content in the cavity, and only has the function of changing the background color of the display when the percentage of water vapor content in the cavity detected by the humidity display 6 is greater than the humidity critical value.

[0038] In the above embodiment, the function of changing the background color of the display 6 mainly serves as a warning. As another embodiment, the present invention may also adopt other warning methods, such as ringing a bell.

[0039] Figure 3 yes Figure 2 An exploded diagram of the electric heating glass includes: a first end face 301 of the electric heating glass, a signal line 7, a connector 8, a temperature sensor 9 and a cavity 10.

[0040] The cavity 10 also includes a connector, one end of the connector 8 is connected to the electrically heated glass, and the other end is connected to a power source, so that the electrically heated glass can generate heat after being powered on. As an embodiment, the connector 8 is a flexible PCB board.

[0041] The electrically heated glass includes a first end face 301 of the electrically heated glass and a second end face of the electrically heated glass on the opposite side of the first end face 301 of the electrically heated glass. The first end face 301 of the electrically heated glass is coated with an ITO film. The first end face 301 of the electrically heated glass is located in the cavity 10 and is connected to the shooting module. The second end face of the electrically heated glass faces the outside of the video device. A connector 8 is also connected to the first end face of the electrically heated glass 3. The connector 8 is connected to a power source so that the electrically heated glass is energized and generates heat, so that the temperature of the electrically heated glass is maintained within a relatively high temperature range. The upper limit critical value is the highest temperature that the electrically heated glass can reach (depending on the use environment), and the lower limit critical value is the lowest temperature that the electrically heated glass can accept (depending on the use environment). As an embodiment, the upper limit critical value of the temperature of the electrically heated glass is 30°, and the lower limit critical value is 25°. By energizing the electrically heated glass to generate heat, the temperature range of the electrically heated glass 3 varies between 25° and 30°. By ensuring that the temperature of the electrically heated glass is within a certain range, water vapor outside the video device or water vapor inside the cavity 10 is not easily liquefied when encountering the electrically heated glass, thereby alleviating the problem of water vapor in the air liquefying or condensing when encountering the electrically heated glass with a lower temperature and forming liquid or ice on the electrically heated glass.

[0042] The temperature sensor 9 is connected to the electrically heated glass and is used to monitor the temperature of the electrically heated glass. When the temperature of the electrically heated glass is less than or equal to the lower critical value (when the equipment is just turned on), the temperature sensor 9 sends a signal to the power supply through the signal line 7, so that the power supply supplies power to the electrically heated glass to heat the electrically heated glass, thereby preventing the temperature of the electrically heated glass from being too low and causing the higher temperature water vapor in the air to condense into liquid or ice on the electrically heated glass. When the temperature sensor 9 detects that the temperature of the electrically heated glass reaches the upper critical value, it transmits a signal to the power supply through the signal line 7, so that the power supply stops supplying power to the electrically heated glass 3 and stops heating the electrically heated glass. In this way, it can be ensured that the temperature of the electrically heated glass 3 always fluctuates between the upper critical value and the lower critical value.

[0043] The present invention also discloses a control method, referring to Figures 1 to 3 The device in the embodiment of the present invention is described in detail.

[0044] Figure 4 It is a schematic diagram of the heating process of electrically heated glass.

[0045] First, an upper critical value and a lower critical value of the temperature of the electrically heated glass are set. The upper critical value is the highest temperature that the electrically heated glass 3 can reach, and the lower critical value is the lowest temperature that the electrically heated glass 3 can accept.

[0046] When the temperature sensor 9 senses that the temperature of the electrically heated glass 3 has reached the lower critical value, or is lower than the lower critical value (the temperature of the electrically heated glass 3 may be lower when the power is just turned on), the electrically heated glass 3 is powered by a power supply, so that the electrically heated glass 3 generates heat and the electrically heated glass 3 heats up.

[0047] When the temperature sensor 9 senses that the temperature of the electrically heated glass 3 reaches an upper critical value, the power supply stops supplying power to the electrically heated glass 3, and the electrically heated glass 3 stops generating heat.

[0048] The above method can keep the temperature of the electrically heated glass 3 within a certain range, thereby alleviating the problem that water vapor in the air is easily liquefied when encountering the electrically heated glass 3 with a lower temperature, and ensuring the normal operation of the electrically heated glass 3.

[0049] Figure 5 It is a schematic diagram of the display feedback process.

[0050] The display 6 located on the cover plate 2 is connected to the humidity sensor in the cavity 10 and displays the percentage value of the water vapor content in the cavity 10 detected by the humidity sensor.

[0051] At the same time, a humidity critical value is set on the display 6. When the percentage of water vapor content in the cavity 10 detected by the humidity sensor exceeds the humidity critical value, the background color of the display 6 will change.

[0052] When the background color of the display 6 changes, there may be two situations. The first situation is that the cover plate 2 and the shell 1 have a poor sealing problem when they are connected, so that the dry nitrogen in the cavity 10 circulates with the outside air in a short time, causing the water vapor content in the cavity 10 to increase. The second situation is that the use time is too long, and due to various reasons such as the use environment and air pressure, the air in the cavity 10 has a slow gas exchange with the outside air. This situation is a normal situation during the use of the equipment.

[0053] After inspection, if the first situation is found, the connection between the cover plate 2 and the housing 1 is repaired to correct the sealing defect of the equipment. Then, the air in the cavity 10 is evacuated through the one-way valve 5 and then filled with dry nitrogen to ensure a dry working environment in the cavity 10.

[0054] After inspection, if it is found that the first situation does not exist and only the second situation exists, the air in the cavity 10 is directly evacuated and filled with dry nitrogen to complete the normal maintenance work of the equipment.

[0055] The above method can ensure that there is not enough water vapor in the cavity 10 to be liquefied, thereby ensuring that the electrically heated glass 3 and the shooting module will not cause problems such as blurred shooting or loss of video output function due to the liquefaction of water vapor.

[0056] By means of the above-mentioned device and method, the temperature of the electrically heated glass 3 is adjusted and the water vapor content in the cavity 10 is controlled. The problem that water vapor is easily liquefied to form liquid or ice when encountering the electrically heated glass 3 and the shooting module with lower temperature is solved, thereby ensuring the normal operation of the electrically heated glass 3 and the shooting module.

[0057] The above is a specific description of the preferred implementation of the present invention, but the invention is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A method for controlling a video device, characterized in that: The video device comprises an electrically heated glass, a shooting module, a power source and a shell, wherein the shell has a cavity for storing dry gas, the shooting module is located in the cavity, one end of the electrically heated glass faces the cavity, and the other end faces the outside of the shell, the power source is located in the cavity and connected to the electrically heated glass; the method comprises: S1: Measure the water vapor content in the cavity. When the measured value is greater than the humidity threshold, determine: If the sealing performance of the housing is good, directly execute step S2; If there is a defect in the sealing of the housing, after repairing the defect, step S2 is performed; S2: After evacuating the gas in the cavity, fill the cavity with dry gas; Before, simultaneously with or after step S1, the method further includes step S4: heating the electrically heated glass.

2. The control method according to claim 1, characterized in that: The video device also includes a connector, one end of which is connected to the power source, and the other end of which is connected to the electrically heated glass.

3. The control method according to claim 1, characterized in that: The video device also includes a temperature sensor and a signal line. The temperature sensor is thermally connected to the electrically heated glass, and the temperature sensor is connected to the power supply via the signal line.

4. The control method according to claim 2, characterized in that: The housing comprises a shell and a cover plate, wherein the cover plate is sealed and connected to the shell, the electrically heated glass is located on the shell, and the connector and the power source are located in the cavity formed by the cover plate and the shell.

5. The control method according to claim 1, characterized in that: The video device further comprises a one-way valve mounted on the housing, wherein the one-way valve is in communication with the cavity.

6. The control method according to claim 1, characterized in that: The video device also includes a humidity sensor located in the cavity.

7. The control method according to claim 6, characterized in that: The housing is connected with a display, and the display is connected with the humidity sensor.

8. The control method according to claim 7, characterized in that: Through the feedback of the humidity sensor, the display can display the percentage of water vapor content in the cavity, and / or when the measured value of the humidity sensor is greater than the humidity threshold value, the display changes color.

9. The control method according to claim 1, characterized in that: The heating of the electrically heated glass includes: detecting the temperature of the electrically heated glass, heating the electrically heated glass when the temperature of the electrically heated glass reaches a lower critical value, and stopping heating the electrically heated glass when the temperature of the electrically heated glass reaches an upper critical value.

Images