Portable verification device

Abstract

The utility model discloses a portable verification device, which relates to the technical field of camera equipment detection and comprises a box body, a camera detection interface arranged on the back surface of the box body, an image display arranged on the front surface of the box body and an image signal conversion circuit arranged in the box body, the camera detection interface is used for being connected with a camera to be detected, and the image signal conversion circuit is connected with the camera detection interface and the image display. According to the calibration device, the camera shooting function of the camera can be detected through the camera detection interface, the image signal conversion circuit and the image display, and the calibration device is convenient to carry and can be conveniently used by a worker in a ship cabin.

Description

TECHNICAL FIELD

[0001] The utility model relates to camera equipment detection technical field, especially a portable calibration device. BACKGROUND

[0002] The ship is a kind of mainly in geographical water operation artificial traffic tool, inside mainly including accommodation space, support structure and drainage structure, with the propulsion system using external or self-contained energy. Among them, modern ship installs camera in each accommodation space, to facilitate staff to carry out real-time monitoring to the condition of ship. In the process of ship design and construction, after camera installation, the performance of each camera needs to be detected.

[0003] In prior art, camera control cabinet and camera are arranged in different cabins, when debugging or maintaining camera equipment, at least two workers are needed to view camera and control cabinet, which seriously affects construction efficiency. UTILITY MODEL CONTENTS

[0004] The utility model embodiment provides a kind of portable calibration device, to solve the technical problem of inconvenient camera debugging or maintenance of existing ship cabin in relevant technology.

[0005] The utility model embodiment provides a kind of portable calibration device, comprising:

[0006] Box body;

[0007] Camera detection interface arranged on the back of the box body, the camera detection interface is used to be connected with the camera to be detected;

[0008] Image display arranged on the front of the box body;

[0009] Image signal conversion circuit arranged in the box body, the image signal conversion circuit is connected with the camera detection interface and the image display.

[0010] Some embodiments, the image signal conversion circuit includes first resistance, second resistance, third resistance, fourth resistance, fifth resistance, sixth resistance, seventh resistance, eighth resistance and signal processing chip;

[0011] The first end of the first resistance and the first end of the second resistance are used to receive video signal respectively, the second end of the first resistance and the second end of the second resistance are connected with the IN+ pin and IN- pin of the signal processing chip;

[0012] The first end of the third resistor is connected with the first end of the first resistor, the first end of the fourth resistor is connected with the first end of the second resistor, the second end of the third resistor and the second end of the fourth resistor are connected with the first end of the fifth resistor, the second end of the fifth resistor and the first end of the sixth resistor are connected;

[0013] The second end of the sixth resistor is connected with the REF pin of the signal processing chip and then grounded.

[0014] The first end and the second end of the seventh resistor are connected with the FB pin and the OUT pin of the signal processing chip, and the second end of the seventh resistor is connected with the input end of the image display.

[0015] The first end of the eighth resistor is connected with the first end of the seventh resistor, and the second end of the eighth resistor is grounded.

[0016] In some embodiments, the portable verification device further comprises:

[0017] A plurality of control buttons arranged on the front of the box body;

[0018] A button control circuit arranged in the box body, the button control circuit being connected with the camera detection interface and the plurality of control buttons.

[0019] In some embodiments, the portable verification device further comprises a plurality of function indicator lamps arranged on the front of the box body.

[0020] In some embodiments, the portable verification device further comprises a plurality of test terminals arranged on the front of the box body.

[0021] In some embodiments, the portable verification device further comprises an image signal detection circuit arranged in the box body, the image signal detection circuit being connected with the camera detection interface and being used for detecting whether there is an image signal input.

[0022] In some embodiments, the image signal detection circuit comprises a ninth resistor, a tenth resistor, an eleventh resistor, a twelfth resistor and a comparator.

[0023] The first end of the ninth resistor is connected with the inverting input end of the comparator and is used for receiving a video signal, the second end of the ninth resistor is grounded, the first end of the tenth resistor is connected with the non-inverting input end of the comparator, the second end of the tenth resistor is grounded, the first end of the eleventh resistor is connected with the non-inverting input end of the comparator, the second end of the eleventh resistor is connected with a power supply, the first end of the twelfth resistor is connected with the output end of the comparator, and the second end of the twelfth resistor is connected with one of the function indicator lamps and then connected with the power supply.

[0024] Some embodiments, the portable verification device also includes: a plurality of digital keys and digital display on the front of the box, decoder input detection interface and decoder output detection interface on the back of the box.

[0025] Some embodiments, the portable verification device also includes: battery power indicator light and video standard interface on the back of the box.

[0026] Some embodiments, the box top is provided with a handle.

[0027] The beneficial effects brought by the technical scheme of the utility model include:

[0028] The utility model discloses a portable verification device, which is provided with a box, a camera detection interface and an image display are arranged on the box, and a key control circuit and an image signal conversion circuit are arranged in the box. The verification device can realize camera function detection of the camera through the camera detection interface, the image signal conversion circuit and the image display. The verification device is convenient to carry and is convenient for the staff to use in the ship cabin. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor.

[0030] Figure 1 The structure diagram of the portable verification device provided by the utility model embodiment is shown.

[0031] Figure 2 The back view schematic diagram of the portable verification device provided by the utility model embodiment is shown.

[0032] Figure 3 The front view partial schematic diagram of the portable verification device provided by the utility model embodiment is shown.

[0033] Figure 4 The circuit diagram of the image signal conversion circuit provided by the utility model embodiment is shown.

[0034] Figure 5 The circuit diagram of the image signal detection circuit provided by the utility model embodiment is shown.

[0035] Figure 6 The schematic diagram of the portable verification device provided by the utility model embodiment and the decoder is shown.

[0036] Figure 7 Another schematic view of the portable verification device connected with the decoder is provided in the embodiment of the present application;

[0037] In the drawing:

[0038] 1, box; 101, hand handle;

[0039] 2, control button;

[0040] 3, test terminal;

[0041] 4, function indicator lamp;

[0042] 5, image display;

[0043] 6, camera detection interface;

[0044] 7, digital button;

[0045] 8, digital display;

[0046] 9, decoder input detection interface;

[0047] 10, decoder output detection interface;

[0048] 11, battery power indicator lamp;

[0049] 12, video standard interface;

[0050] 13, to be measured camera. DETAILED DESCRIPTION

[0051] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0052] The embodiment of the present application provides a portable verification device, which can solve the technical problem of inconvenient camera debugging or maintenance of the existing ship cabin.

[0053] Referring to Figure 1 and Figure 2As shown in the utility model embodiment, the portable verification device comprises a box body 1, a camera detection interface 6 arranged on the box body 1, an image display 5 arranged on the box body 1 and an image signal conversion circuit arranged in the box body 1. Specifically, the camera detection interface 6 is arranged on the back of the box body 1, and the image display 5 is arranged on the left side of the front of the box body 1. The camera detection interface 6 is used to be connected with a to-be-tested camera 13, and the image signal conversion circuit is connected with the camera detection interface 6 and the image display 5. The to-be-tested camera 13 has a zoom lens and a multi-directional moving holder.

[0054] When the verification device of the utility model is connected with the to-be-tested camera through the camera detection interface 6, the verification device provides power supply for the to-be-tested camera, the camera normally works to output image signals, the image signal conversion circuit in the box body 1 receives the image signals output by the to-be-tested camera, and sends the image signals to the image display 5 after format conversion, so that whether the camera shooting function is normal can be detected.

[0055] The portable verification device in the utility model embodiment is provided with a box body, the box body is provided with a camera detection interface and an image display, and the box body is provided with a key control circuit and an image signal conversion circuit. The verification device of the utility model can realize camera shooting function detection of the camera through the camera detection interface, the image signal conversion circuit and the image display, the verification device is convenient to carry, and it is convenient for staff to use in a ship cabin.

[0056] As an optional embodiment, in one utility model embodiment, referring to Figure 4 As shown in the utility model embodiment, the image signal conversion circuit comprises a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8 and a signal processing chip U1.

[0057] The first end of the first resistor R1 and the first end of the second resistor R2 are used for receiving a video signal, the second end of the first resistor R1 and the second end of the second resistor R2 are connected with the IN+ pin and the IN- pin of the signal processing chip U1, the first end of the third resistor R3 is connected with the first end of the first resistor R1, the first end of the fourth resistor R4 is connected with the first end of the second resistor R2, the second end of the third resistor R3 and the second end of the fourth resistor R4 are connected with the first end of the fifth resistor R5, the second end of the fifth resistor R5 and the first end of the sixth resistor R6 are connected, and the second end of the sixth resistor R6 is connected with the REF pin of the signal processing chip U1 and then grounded. The first end and the second end of the seventh resistor R7 are connected with the FB pin and the OUT pin of the signal processing chip U1, and the second end of the seventh resistor R7 is connected with the input end of the image display 5. The first end of the eighth resistor R8 is connected with the first end of the seventh resistor R7, and the second end of the eighth resistor R8 is grounded. The image signal conversion circuit converts the balanced video of the to-be-tested camera into unbalanced video signals that can be displayed by the image display 5.

[0058] As an optional implementation, in an utility model embodiment, referring to Figure 3 The check device further comprises a plurality of operation buttons 2 arranged on the box body 1 and a button control circuit arranged inside the box body 1. Specifically, the plurality of operation buttons 2 are arranged below the right side of the front face of the box body 1. The button control circuit is connected with the camera detection interface 6 and the plurality of operation buttons 2.

[0059] The operation buttons 2 comprise buttons for controlling the up-down and left-right movements of the holder of the camera, and the operation buttons 2 further comprise buttons for controlling the zooming of the lens of the camera. When one of the operation buttons 2 is pressed, the button control circuit controls the holder or the lens of the camera to move according to the button operation through the camera detection interface 6, so as to detect whether the holder and the lens of the camera are normal.

[0060] As an optional implementation, in an utility model embodiment, referring to Figure 3 The check device further comprises a plurality of function indicator lamps 4 arranged on the front face of the box body 1. Specifically, the plurality of function indicator lamps 4 are arranged above the right side of the front face of the box body 1. Some of the function indicator lamps 4 correspond to the plurality of operation buttons 2 one by one. When one of the operation buttons 2 is pressed, the corresponding one of the function indicator lamps 4 is lighted, so as to provide an indication function.

[0061] As an optional implementation, in an utility model embodiment, the check device further comprises a plurality of test terminals 3 arranged on the front face of the box 1. Specifically, the plurality of test terminals 3 are arranged on the right middle part of the front face of the box 1. The plurality of test terminals 3 correspond to the plurality of control buttons 2 one by one, and when one of the control buttons 2 is pressed, the corresponding test terminal 3 can be measured by a detection instrument (such as a multimeter) to provide a measurement function.

[0062] As an optional implementation, in an utility model embodiment, referring to Figure 5 , the check device further comprises an image signal detection circuit arranged in the box 1, and the image signal detection circuit is connected with the camera detection interface 6 and used for detecting whether an image signal is input.

[0063] Specifically, the image signal detection circuit comprises a ninth resistor R9, a tenth resistor R10, an eleventh resistor R11, a twelfth resistor R12, and a comparator U2.

[0064] The first end of the ninth resistor R9 is connected with the inverting input end of the comparator U2 and used for receiving a video signal, the second end of the ninth resistor R9 is grounded, the first end of the tenth resistor R10 is connected with the non-inverting input end of the comparator U2, the second end of the tenth resistor R10 is grounded, the first end of the eleventh resistor R11 is connected with the non-inverting input end of the comparator U2, and the second end of the eleventh resistor R11 is connected with a +5V power supply. The first end of the twelfth resistor R12 is connected with the output end of the comparator U2, and the second end of the twelfth resistor R12 is connected with a function indicator lamp 4 and then connected with a power supply. After video detection, the image signal detection circuit judges the received signal, and if there is a signal input, the function indicator lamp 4 Figure 5 , the function indicator lamp 4 Figure 3 is lit in the upper right corner to remind.

[0065] As an optional implementation, in an utility model embodiment, referring to Figure 1 and Figure 3 , the check device further comprises a plurality of digital buttons 7 and a digital display 8 arranged on the front face of the box 1, and a decoder input detection interface 9 and a decoder output detection interface 10 arranged on the back face of the box 1.

[0066] Specifically, referring to Figure 6As shown, the utility model embodiment sets up the function of detecting the internal signal processing of decoder, can test whether the signal in decoder is normal after the decoder of control cabinet (the connecting equipment when the normal use of camera under test) is inputted, the processing of signal in decoder. The decoder of control cabinet is connected to the input detection interface 9 of check device, opens check device, according to the address setting of decoder, sets the address of check device. For example: the address of decoder is "2", through the digital key 7 press "2", the digital display 8 shows "2", then the address of check device is also set to "2". Press one of the aforementioned control keys 2, listen to whether there is a relay attraction sound in the decoder, observe whether there is an indicator light flashing on the decoder, each control action corresponds to an indicator light in the decoder, when the corresponding indicator light flashes, it shows that the control command is correctly processed in the decoder.

[0067] Referring to Figure 7 As shown, the decoder of control cabinet is connected to the decoder output detection interface 10 of check device, when the control cabinet controls the camera under test through its decoder, the corresponding function indicator light 4 of check device is lit. For example, control the pan-tilt to rotate upwards, the "pan-tilt-up" function indicator light is lit, at the same time, 24VAC alternating current signal can be measured at the "pan-tilt-up", "common terminal" two test terminals. Control the lens zoom far, the "focus-far" indicator light is lit, 24VDC direct current signal can be measured at the "focus-far", "focus-near" two test terminals.

[0068] When the decoder of control cabinet is input tested, generally, the decoder and control cabinet are disassembled, and are connected to the check device for testing separately. When the decoder of control cabinet is output tested, the decoder is set on the control cabinet, the output end of decoder is connected to the check device, and the effect of function indicator light 4 of check device is observed when the control cabinet is controlled.

[0069] As an optional embodiment, in one utility model embodiment, the check device further comprises: a battery power indicator light 11 and a video standard interface 12 arranged on the back of the box body 1. The battery power indicator light 11 can prompt the battery power in real time, and according to the power display prompt, it is determined whether to charge in advance. The video standard interface 12 can input the external standard format video signal to the video display of check device for display. At the same time, the image of camera connected to the check device can be displayed on other external display through the video standard interface 12 in addition to the video display of check device.

[0070] As an optional implementation, in one utility model embodiment, the box 1 is provided with a handle 101 on the top, which facilitates the staff to carry the verification device.

[0071] In the description of the present utility model, it should be noted that the positions or location relations indicated by the terms "upper", "lower" and the like are based on the positions or location relations shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present utility model. Unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrated connection; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0072] It should be noted that in the present utility model, relational terms such as "first" and "second" and the like are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or device. Without more limitations, the element defined by the sentence "including a" does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0073] The above is only a specific embodiment of the present utility model, enabling those skilled in the art to understand or implement the present utility model. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features of the present utility model.

Claims

1. A portable verification device, characterized in that, It comprises: a box (1); a camera detection interface (6) arranged on the back of the box (1), which is used to connect with the camera to be detected; an image display (5) arranged on the front of the box (1); an image signal conversion circuit arranged inside the box (1), which is connected with the camera detection interface (6) and the image display (5).

2. The portable verification device according to claim 1, wherein: the image signal conversion circuit comprises a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor and a signal processing chip; the first end of the first resistor and the first end of the second resistor are used to receive a video signal, and the second end of the first resistor and the second end of the second resistor are connected with the IN+ pin and the IN- pin of the signal processing chip; the first end of the third resistor is connected with the first end of the first resistor, the first end of the fourth resistor is connected with the first end of the second resistor, the second end of the third resistor and the second end of the fourth resistor are connected with the first end of the fifth resistor, the second end of the fifth resistor and the first end of the sixth resistor are connected; the second end of the sixth resistor is connected with the REF pin of the signal processing chip and then grounded; the first end and the second end of the seventh resistor are connected with the FB pin and the OUT pin of the signal processing chip, and the second end of the seventh resistor is connected with the input end of the image display (5); the first end of the eighth resistor is connected with the first end of the seventh resistor, and the second end of the eighth resistor is grounded.

3. The portable verification device of claim 1, wherein, It further comprises: a plurality of control buttons (2) arranged on the front of the box (1); a button control circuit arranged inside the box (1), which is connected with the camera detection interface (6) and the plurality of control buttons (2).

4. The portable verification device of claim 3, wherein, It further comprises: a plurality of function indicator lights (4) arranged on the front of the box (1).

5. The portable verification device of claim 4, wherein, It further comprises: an image signal detection circuit arranged inside the box (1), which is connected with the camera detection interface (6) and used to detect whether there is an image signal input.

6. The portable verification device according to claim 5, wherein: the image signal detection circuit comprises a ninth resistor, a tenth resistor, an eleventh resistor, a twelfth resistor and a comparator; the first end of the ninth resistor is connected with the inverting input end of the comparator and used to receive a video signal, the second end of the ninth resistor is grounded, the first end of the tenth resistor is connected with the non-inverting input end of the comparator, the second end of the tenth resistor is grounded, the first end of the eleventh resistor is connected with the non-inverting input end of the comparator, the second end of the eleventh resistor is connected with a power supply, the first end of the twelfth resistor is connected with the output end of the comparator, and the second end of the twelfth resistor is connected with one of the function indicator lights and then connected with a power supply.

7. The portable verification device of claim 3, wherein, It further comprises: a plurality of test terminals (3) arranged on the front of the box (1).

8. The portable verification device of claim 7, wherein, It further comprises: A plurality of digital buttons (7) and a digital display (8) are arranged on the front face of the box (1), and a decoder input detection interface (9) and a decoder output detection interface (10) are arranged on the back face of the box (1).

9. The portable verification device of claim 1, wherein, Further comprising: A battery power indicator (11) and a video standard interface (12) are arranged on the back face of the box (1).

10. The portable verification device of claim 1, wherein: A hand handle (101) is arranged on the top of the box (1).

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