Camera

Abstract

The utility model provides a camera. The camera includes a housing, a lens mount, a lens, a heating glass, a first sensor, a second sensor, and a controller. The shell comprises a front end shell and a rear cover connected with the front end shell, and a front end through hole is formed in the front side of the front end shell. The lens mount is arranged in the shell. The lens is arranged on the lens seat, and the front end of the lens faces the front end through hole. The heating glass is arranged on the front end shell and covers the front end through hole. The heating glass comprises a glass body and a heating piece, and the heating piece is arranged on the glass body and used for heating the glass body. The first sensor is arranged on the side, facing the lens, of the heating glass and used for obtaining the temperature and humidity of the side, facing the lens, of the heating glass. The second sensor is arranged on the heating glass and used for obtaining the temperature of the heating glass. The controller is electrically connected with the first sensor, the second sensor and the heating piece and used for controlling the heating piece according to signals of the first sensor and the second sensor, so that the fogging risk of the camera is recognized, and fogging is prevented in time.

Description

Technical Field

[0001] This application relates to the field of optical imaging devices, and more particularly to a camera. Background Technology

[0002] In existing technologies, during the assembly and storage process, the camera's internal cavity and PCB board absorb a high amount of moisture. When operating in high-temperature and high-humidity environments, the mask may fog up, causing the camera lens to fail to recognize the image and resulting in malfunctions.

[0003] In related technologies, the camera defogs only after fog appears, reducing the flexibility of using the barcode reader camera. Utility Model Content

[0004] This application provides a camera that prevents the camera mask from fogging up depending on the camera's operating environment.

[0005] This application provides a camera, including:

[0006] The housing includes a front shell and a rear cover connected to the front shell, wherein the front shell has a front through hole on its front side;

[0007] Lens mount, wherein the lens mount is disposed within the housing;

[0008] A lens, wherein the lens is mounted on the lens mount, and the front end of the lens faces the front end through hole;

[0009] Heated glass, wherein the heated glass is disposed on the front end housing and covers the front end through hole, the heated glass includes a glass body and a heating element, the heating element is disposed on the glass body and is used to heat the glass body;

[0010] A first sensor is disposed on the side of the heated glass facing the lens, and is used to acquire the temperature and humidity of the side of the heated glass facing the lens;

[0011] A second sensor, disposed on the heated glass, is used to acquire the temperature of the heated glass; and

[0012] The controller is electrically connected to the first sensor, the second sensor, and the heating element, and is used to control the heating element based on the signals from the first sensor and the second sensor.

[0013] The camera of this application includes a first sensor and a second sensor. The first sensor is located on the side of the heated glass facing the lens, thereby acquiring the temperature and humidity of that side of the heated glass. The second sensor is located on the heated glass, thereby acquiring the temperature of the heated glass. A controller is electrically connected to the first sensor, the second sensor, and the heating element of the heated glass. This configuration allows for control of the heating element based on the signals from the first and second sensors. Through this configuration, the risk of fogging can be identified before the camera fogs up, achieving an anti-fogging effect. It allows for flexible defogging based on the usage environment, exhibiting strong environmental adaptability and energy-saving properties.

[0014] Optionally, it also includes a lamp plate bracket and a lamp plate, the lamp plate being disposed on the lamp plate bracket, the lamp plate bracket being spaced apart from the heating glass in the front end housing, a receiving cavity being provided between the lamp plate bracket and the heating glass, the lens extending from the lens mount through the lamp plate and the lamp plate bracket, extending into the receiving cavity, and the first sensor being disposed on the lamp plate.

[0015] Optionally, a sealing assembly is also included, which is sealed to the heating glass, the lamp plate and the lens mount respectively, and surrounds the lens, with the first sensor disposed in the space surrounded by the sealing assembly.

[0016] Optionally, the sealing assembly includes a first seal, which is disposed between the lamp plate and the heating glass. One end of the first seal is sealed to the lamp plate, and the other end is sealed to the heating glass. The first seal surrounds the front end of the lens, and the first sensor is disposed within the space surrounded by the first seal.

[0017] Optionally, the first seal includes an annular seal body and a receiving portion extending outward from the seal body. The seal body seals and connects the lamp plate and the heating glass, surrounds the front end of the lens, and the receiving portion communicates with the space surrounded by the seal body. The first sensor is disposed within the receiving portion.

[0018] Optionally, the lens mount is located on the side of the lamp plate opposite to the heating glass, and there is a gap between the lens and the lamp plate in the axial direction. The sealing assembly further includes a second seal, which is disposed in the gap between the lamp plate and the lens mount. One end of the second seal is sealed to the lamp plate, and the other end is sealed to the lens mount. The second seal surrounds the lens, and the first sensor is disposed in the space surrounded by the first seal, the second seal, the heating glass, and the lamp plate.

[0019] Optionally, the camera includes a motherboard disposed outside the space surrounding the sealing assembly.

[0020] Optionally, the first sensor is disposed on the side of the lamp panel facing the heated glass.

[0021] Optionally, the heating element includes a heating wire integrated inside the glass body, and the heating wire is electrically connected to the controller.

[0022] Optionally, the second sensor is integrated into the heated glass.

[0023] Optionally, the glass body is provided with a conductive film formed by an ITO coating process, and the conductive film is electrically connected to the heating element.

[0024] Optionally, the camera includes a voltage regulation device, which is electrically connected to the heating element and the controller respectively. The controller regulates the input voltage across the heating element through the voltage regulation device.

[0025] Optionally, the controller includes a timing device for controlling the conduction duration of the heating element.

[0026] Optionally, the camera is a barcode reader camera. Attached Figure Description

[0027] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0028] Figure 1 The image shown is a perspective view of one embodiment of the camera in this application.

[0029] Figure 2 As shown Figure 1 The diagram shows a cross-sectional view of the camera along line AA.

[0030] Figure 3 As shown Figure 1 A schematic cross-sectional view of the camera along line BB.

[0031] Figure 4 As shown Figure 1 The circuit block diagram of one embodiment of the camera shown is illustrated.

[0032] Explanation of reference numerals in the attached figures:

[0033] 100. Camera; 110. Heated glass; 111. Heating element; 120. Housing; 121. Front housing; 1211. Front through hole; 122. Rear cover; 130. Lamp panel bracket; 131. Receiving cavity; 140. Sealing assembly; 141. First seal; 1411. Seal body; 1412. Receiving part; 142. Second seal; 150. Lamp panel; 161. First sensor; 162. Second sensor; 170. Lens mount; 180. Main board; 190. Lens; 210. Controller; 211. Timing device; 220. Voltage regulating device. Detailed Implementation

[0034] The technical solutions in the embodiments (or "implementations") of this application will be clearly and completely described herein with reference to the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0035] If the embodiments of this application contain terms relating to directional indications or positional relationships (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationships and movements between components in a specific posture (as shown in the attached figures); if the specific posture changes, the directional indications or positional relationships will also change accordingly. Furthermore, the terms "first" and "second" used in the embodiments of this application are only for descriptive convenience and should not be construed as indicating or implying relative importance.

[0036] This application provides a camera. The camera of this application will be described in detail below with reference to the accompanying drawings. Unless otherwise specified, the features of the following embodiments and implementations can be combined with each other.

[0037] See Figure 1 and Figure 2As shown, the camera 100 includes a housing 120, a lens mount 170, a lens 190, a heated glass 110, a first sensor 161, a second sensor 162, and a controller 210. The housing 120 includes a front end cover 121 and a rear cover 122 connected to the front end cover 121. The front end cover 121 has a front through hole 1211 on its front side. The lens mount 170 is disposed within the housing 120. The lens 190 is disposed on the lens mount 170, with its front end facing the front through hole 1211. The heated glass 110 is disposed on the front end cover 121, covering the front through hole 1211. The lens 190 can acquire image information through the heated glass 110. The heated glass 110 includes a glass body and a heating element 111, which is disposed on the glass body and used to heat the glass body. The first sensor 161 is disposed on the side of the heated glass 110 facing the lens 190 and is used to acquire the temperature and humidity of the side of the heated glass 110 facing the lens 190. The second sensor 162 is disposed on the heated glass 110 and is used to obtain the temperature of the heated glass 110. The controller 210 is electrically connected to the first sensor 161, the second sensor 162 and the heating element 111, and is used to control the heating element 111 according to the signals of the first sensor 161 and the second sensor 162.

[0038] After the camera 100 is powered on, the first sensor 161 acquires the temperature T of the side of the heated glass 110 facing the lens 190. 镜 and humidity The controller 210 obtains the signal from the first sensor 161 and, according to the formula... (Unit: kPa) The saturation pressure P of the heated glass 110 facing the lens 190 is calculated. 镜饱 And according to the formula (Unit: kPa) The water vapor partial pressure P on the side of the heated glass 110 facing the lens 190 is obtained. 分 Through formula (Unit: °C), thus obtaining the dew point temperature T of the heated glass. 露 Thus, the dew point temperature T_dew of the heated glass 110 is obtained. The controller 210 obtains the temperature T_dew at the heated glass 110 through the signal from the second sensor 162. 玻 The temperature at the heated glass 110 is compared with the dew point temperature T. 露 For comparison, when the dew point temperature T 露 Temperature T above 110 degrees Celsius above the heated glass 玻 At that time, the temperature at 110 and the dew point temperature T 露 For comparison, when the dew point temperature T_dew is higher than the temperature T_d at the heated glass by 110°C... 玻 At that time, the controller 210 controls the heating element 111 to heat the glass body, thereby raising the temperature T of the heated glass 110. 玻Above the dew point temperature T 露 This prevents fogging. Through the above settings, the risk of fogging can be identified before it occurs on the camera 100. Simultaneously, temperature logic is used to prevent fogging. Furthermore, the system makes judgments based on the operating environment, demonstrating strong environmental adaptability and energy efficiency.

[0039] In some embodiments, when the dew point temperature T 露 Temperature T above the heated glass 玻 At that time, the controller controls the heating element 111 to heat the glass body until the temperature at the heated glass is maintained at T. 玻 =T 露 +3℃ ensures that the heated glass will not fog up.

[0040] In an optional embodiment, see Figure 1 and Figure 2 As shown, the camera 100 also includes a light panel 150 bracket 130 and a light panel 150. The light panel 150 is disposed on the light panel 150 bracket 130, and the light panel 150 bracket 130 and the heating glass 110 are spaced apart on the front end housing 121. A receiving cavity 131 is provided between the light panel 150 bracket 130 and the heating glass 110. The lens 190 extends from the lens mount 170 through the light panel 150 and the light panel 150 bracket 130, and extends into the receiving cavity 131. The first sensor 161 is disposed on the light panel 150.

[0041] The lens 190 extends from the lens mount 170 through the lamp plate 150 and the lamp plate 150 bracket 130, extending into the receiving cavity 131, which facilitates image acquisition by the lens 190. The first sensor 161 is integrated into the lamp plate 150, making the internal structure of the camera 100 compact and reducing the internal space of the camera 100; it also facilitates the first sensor 161 in acquiring the temperature and humidity in the receiving cavity 131, making the temperature and humidity acquired by the first sensor 161 more accurate. The controller 210 calculates the dew point temperature of the heated glass 110 based on the signal from the first sensor 161, and controls the heating element 111 to heat the glass body, thereby making the surface temperature of the heated glass 110 higher than the dew point temperature, avoiding fogging and achieving an anti-fogging effect.

[0042] In an optional embodiment, see Figure 2As shown, the camera 100 also includes a sealing assembly 140. The sealing assembly 140 is sealed to the heating glass 110, the lamp panel 150, and the lens mount 170, and surrounds the lens 190. The first sensor 161 is disposed within the space surrounded by the sealing assembly 140. The sealing assembly 140, the heating glass 110, the lamp panel 150, and the lens mount 170 are sealed to form a sealed chamber. The lens 190 is disposed inside the sealed chamber. The sealed chamber is isolated from the air and water vapor in other parts of the camera 100, making the temperature and humidity in the receiving cavity 131 collected by the first sensor 161 more accurate. The controller 210 calculates the dew point temperature of the heating glass 110 based on the signal from the first sensor 161, and controls the heating element 111 to heat the glass body, thereby making the surface temperature of the heating glass 110 higher than the dew point temperature, avoiding fogging and achieving an anti-fogging effect. Meanwhile, the above-mentioned settings make it difficult for moisture to enter the space surrounding the sealing component 140, and also help to insulate the space surrounding the sealing component 140, which is conducive to the stability of humidity and temperature in the space surrounding the sealing component 140, and reduces the risk of fogging of the heated glass 110 at the position corresponding to the lens 190.

[0043] In an optional embodiment, see Figure 2 As shown, the sealing assembly 140 includes a first sealing element 141, which is disposed between the lamp panel 150 and the heating glass 110. One end of the first sealing element 141 is sealed to the lamp panel 150, and the other end is sealed to the heating glass 110. The first sealing element 141 surrounds the front end of the lens 190, and the first sensor 161 is disposed within the space surrounded by the first sealing element 141. The first sealing element 141 is a rubber ring. The space between the lamp panel 150 and the heating glass 110 is sealed by the first sealing element 141, forming a sealed chamber. The sealed chamber is isolated from the air and water vapor in other parts of the camera 100, making the temperature and humidity in the receiving cavity 131 collected by the first sensor 161 more accurate. The controller 210 calculates the dew point temperature of the heating glass 110 based on the signal from the first sensor 161 and controls the heating element 111 to heat the glass body, thereby making the surface temperature of the heating glass 110 higher than the dew point temperature, preventing fogging and achieving an anti-fogging effect.

[0044] In an optional embodiment, see Figure 3As shown, the first seal 141 includes an annular seal body 1411 and a receiving portion 1412 extending outward from the seal body 1411. The seal body 1411 connects the lamp plate 150 and the heating glass 110, surrounding the front end of the lens. The receiving portion 1412 communicates with the space surrounding the seal body 1411, and the first sensor 161 is disposed within the receiving portion 1412. This arrangement helps reduce the volume of the space surrounding the first seal 141, thereby reducing the volume of the space formed inside the first seal 141. The space inside the first seal 141 is isolated from the air and water vapor in other parts of the camera 100, making the temperature and humidity in the receiving cavity 131 collected by the first sensor 161 more accurate. The controller 210 calculates the dew point temperature of the heating glass 110 based on the signal from the first sensor 161 and controls the heating element 111 to heat the glass body, thereby ensuring that the surface temperature of the heating glass 110 is higher than the dew point temperature, preventing fogging and achieving an anti-fogging effect.

[0045] In an optional embodiment, see Figure 2 As shown, the lens mount 170 is located on the side of the lamp plate 150 opposite to the heating glass 110, and has a gap between it and the lamp plate 150 in the axial direction of the lens 190. The sealing assembly 140 also includes a second seal 142, which is disposed in the gap between the lamp plate 150 and the lens mount 170. One end of the second seal 142 is sealed to the lamp plate 150, and the other end is sealed to the lens mount 170. The second seal 142 surrounds the lens 190, and the first sensor 161 is disposed within the space surrounded by the first seal 141, the second seal 142, the heating glass 110, and the lamp plate 150.

[0046] The first seal 141, the second seal 142, the heated glass 110, and the lamp panel 150 are sealed together to form a sealed chamber. The sealed chamber is isolated from the air and water vapor in other parts of the camera 100, making the temperature and humidity in the containment cavity 131 collected by the first sensor 161 more accurate. The controller 210 calculates the dew point temperature of the heated glass 110 based on the signal from the first sensor 161, and controls the heating element 111 to heat the glass body, so that the surface temperature of the heated glass 110 is higher than the dew point temperature, avoiding fogging and achieving the effect of anti-fogging.

[0047] In an optional embodiment, see Figure 2As shown, the camera 100 includes a motherboard 180, which is disposed outside the space surrounding the sealing assembly 140. When the camera 100 is powered on, the motherboard 180 operates and its temperature rises, causing water on the motherboard 180 to evaporate. By placing the motherboard 180 outside the sealing assembly 140, the water evaporated from the motherboard 180 will not enter the space inside the sealing assembly 140, resulting in a smaller change in humidity inside the sealing assembly 140. This makes the temperature and humidity collected by the first sensor 161 more accurate. The controller 210 calculates the dew point temperature of the heated glass 110 based on the signal from the first sensor 161 and controls the heating element 111 to heat the glass body, thereby making the surface temperature of the heated glass 110 higher than the dew point temperature, preventing fogging and achieving an anti-fogging effect.

[0048] In an optional embodiment, see Figure 2 As shown, the first sensor 161 is disposed on the side of the lamp panel 150 facing the heated glass 110. This arrangement ensures that the temperature and humidity collected by the first sensor 161 are closer to the temperature and humidity on the side of the heated glass 110 facing the lens 190. The controller 210 calculates the dew point temperature based on the signal from the first sensor 161, resulting in a more accurate value. By controlling the heating element 111 to heat the glass body, the surface temperature of the heated glass 110 is raised above the dew point temperature, preventing fogging and achieving an anti-fogging effect.

[0049] In an optional embodiment, the heating element 111 includes a heating wire integrated inside the glass body, and the heating wire is electrically connected to the controller 210.

[0050] The above settings help to heat the glass body evenly, reducing the risk of fogging caused by uneven heating in certain areas, thus achieving the effect of preventing fogging.

[0051] In an optional embodiment, the second sensor 162 is integrated into the heated glass 110. Specifically, the second sensor 162 may be a temperature NTC. This configuration facilitates a compact design of the camera 100, thereby reducing its overall size.

[0052] In an optional embodiment, see Figure 2 As shown, the glass body is provided with a conductive film formed by an ITO coating process, and the conductive film is electrically connected to the heating element 111. Through the above arrangement, a transparent conductive film is formed on the surface of the glass body, which avoids the heated glass 110 from obstructing the image output of the lens 190. At the same time, it is beneficial to place the heating element 111 on the glass body, so that the glass body is heated evenly as a whole, reducing the risk of fogging caused by uneven heating of the glass body, and achieving the effect of anti-fogging.

[0053] In an optional embodiment, see Figure 4 As shown, the camera 100 includes a voltage regulating device 220. The voltage regulating device 220 is electrically connected to the heating element 111 and the controller 210, respectively. The controller 210 regulates the input voltage across the heating element 111 through the voltage regulating device 220.

[0054] In some embodiments, the controller 210 calculates the dew point temperature of the heated glass 110 using the signal from the first sensor 161; it obtains the temperature at the heated glass 110 using the signal from the second sensor 162, and compares the temperature at the heated glass 110 with the dew point temperature. When the dew point temperature is higher than the temperature at the heated glass 110, and the difference between the dew point temperature and the temperature at the heated glass 110 is large, the controller 210 increases the input voltage across the heating element 111 via the voltage regulating device 220, thereby increasing the operating power of the heating element 111. This facilitates rapid heating of the glass body by the heating element 111 and reduces the risk of fogging on the heated glass 110. When the dew point temperature is higher than the temperature at the heated glass 110, and the difference between the dew point temperature and the temperature at the heated glass 110 is small, the controller 210 reduces the input voltage across the heating element 111 via the voltage regulating device 220, enabling the heated glass 110 to achieve an anti-fogging effect while simultaneously reducing the operating power of the heating element 111, thus achieving energy saving.

[0055] In an optional embodiment, see Figure 4 As shown, the controller 210 includes a timing device 211, which is used to control the conduction time of the heating element 111.

[0056] In some embodiments, after the controller 210 starts the heating element 111, it controls the running time of the heating element 111 through a timing device, so that the heating element 111 runs for a set time, which can be 5 minutes, 10 minutes, 15 minutes, etc. After the heating element 111 runs for the set time, it is turned off, and then the detection signals of the first sensor 161 and the second sensor 162 are used to determine whether the heating element 111 needs to be started again. When the temperature and humidity inside the camera 100 change, it can detect in time the situation where the heating element 111 does not need to be started, reducing the power loss caused by continuous heating, thereby achieving the effect of energy saving.

[0057] In an optional embodiment, the camera 100 is a barcode reader camera 100. The internal structure of the barcode reader camera 100 is compact, which helps to reduce the overall space occupied by the barcode reader camera 100. Through the above-mentioned configuration, the camera 100 can identify the risk of fogging before fogging occurs, and achieve the effect of preventing fogging through temperature logic. At the same time, the system makes judgments based on the usage environment, which has strong environmental adaptability and energy-saving effect, thereby increasing the applicable scenarios of the barcode reader camera 100 and reducing the energy consumption generated during the use of the barcode reader camera 100.

[0058] It should be noted that the technical solutions or features described in the above embodiments can be combined or supplemented with each other without conflict. The scope of protection of this application is not limited to the precise structures described in the above embodiments and shown in the accompanying drawings; all modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A camera, characterized in that, include: The housing includes a front shell and a rear cover connected to the front shell, wherein the front shell has a front through hole on its front side; Lens mount, wherein the lens mount is disposed within the housing; A lens, wherein the lens is mounted on the lens mount, and the front end of the lens faces the front end through hole; Heated glass, wherein the heated glass is disposed on the front end housing and covers the front end through hole, the heated glass includes a glass body and a heating element, the heating element is disposed on the glass body and is used to heat the glass body; A first sensor is disposed on the side of the heated glass facing the lens, and is used to acquire the temperature and humidity of the side of the heated glass facing the lens; A second sensor is disposed on the heated glass to obtain the temperature of the heated glass; and The controller is electrically connected to the first sensor, the second sensor, and the heating element, and is used to control the heating element based on the signals from the first sensor and the second sensor.

2. The camera according to claim 1, characterized in that, It also includes a lamp board bracket and a lamp board, the lamp board being disposed on the lamp board bracket, the lamp board bracket being spaced apart from the heating glass in the front end housing, a receiving cavity being provided between the lamp board bracket and the heating glass, the lens extending from the lens mount through the lamp board and the lamp board bracket, and extending into the receiving cavity, and the first sensor being disposed on the lamp board.

3. The camera according to claim 2, characterized in that, It also includes a sealing assembly, which is sealed to the heating glass, the lamp plate and the lens mount respectively, and surrounds the lens, with the first sensor located in the space surrounded by the sealing assembly.

4. The camera according to claim 3, characterized in that, The sealing assembly includes a first seal, which is disposed between the lamp plate and the heating glass. One end of the first seal is sealed to the lamp plate, and the other end is sealed to the heating glass. The first seal surrounds the front end of the lens, and the first sensor is disposed within the space surrounded by the first seal.

5. The camera according to claim 4, characterized in that, The first seal includes an annular seal body and a receiving portion extending outward from the seal body. The seal body seals and connects the lamp plate and the heating glass, and surrounds the front end of the lens. The receiving portion communicates with the space surrounded by the seal body, and the first sensor is disposed in the receiving portion.

6. The camera according to claim 3, characterized in that, The lens mount is located on the side of the lamp plate away from the heating glass, and there is a gap between the lens and the lamp plate in the axial direction. The sealing assembly also includes a second seal, which is disposed in the gap between the lamp plate and the lens mount. One end of the second seal is sealed to the lamp plate, and the other end is sealed to the lens mount. The second seal surrounds the lens. The first sensor is disposed in the space surrounded by the first seal, the second seal, the heating glass, and the lamp plate.

7. The camera according to claim 4, characterized in that, The camera includes a motherboard disposed outside the space surrounded by the sealing assembly; And / or, the first sensor is disposed on the side of the lamp panel facing the heated glass.

8. The camera according to claim 1, characterized in that, The heating element includes a heating wire, which is integrated inside the glass body and electrically connected to the controller. And / or, the second sensor is integrated into the heated glass.

9. The camera according to claim 1, characterized in that, The glass body is provided with a conductive film formed by an ITO coating process, and the conductive film is electrically connected to the heating element.

10. The camera according to claim 1, characterized in that, The camera includes a voltage regulation device, which is electrically connected to the heating element and the controller respectively. The controller regulates the input voltage across the heating element through the voltage regulation device. And / or, the controller includes a timing device for controlling the on-time of the heating element; And / or, the camera is a barcode reader camera.

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