CN111491160B - Automatic detection device of camera for passenger flow statistics - Google Patents
Automatic detection device of camera for passenger flow statistics Download PDFInfo
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- CN111491160B CN111491160B CN202010329560.7A CN202010329560A CN111491160B CN 111491160 B CN111491160 B CN 111491160B CN 202010329560 A CN202010329560 A CN 202010329560A CN 111491160 B CN111491160 B CN 111491160B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N17/00—Diagnosis, testing or measuring for television systems or their details
- H04N17/002—Diagnosis, testing or measuring for television systems or their details for television cameras
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B7/00—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00
- G08B7/06—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources
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Abstract
The invention discloses an automatic detection device and a control system of a camera for passenger flow statistics, wherein the device comprises a bottom frame, a main body, a top cover and a controller circuit board, wherein the main body is positioned above the bottom frame and is a camera test environment; a hydraulic lifting table is fixed in the underframe, a circular hole is formed in the bottom surface of the main body, a circular sheet with the same diameter as the circular hole is arranged on the upper portion of the hydraulic lifting table, a steering engine for controlling the rotation of the camera rotating groove is arranged on the circular sheet, the camera rotating groove is arranged above the steering engine and used for placing a camera, the hydraulic lifting table moves up and down and can push up the tested camera, when the hydraulic lifting table moves up to the maximum range, the circular sheet is flush with the bottom surface of the main body, a lamp tube group is arranged on the top surface of the main body, and a test card is adhered on the inner side surface of the main body; the device is used for testing the camera, so that the efficiency of camera testing can be improved, the problem of camera testing in the process of selecting the types of the cameras of different manufacturers is solved, and meanwhile, the testing cost of the camera is reduced.
Description
Technical Field
The invention relates to the field of automatic control research, in particular to an automatic detection method for a camera, and specifically relates to an automatic detection device and a control system for a camera for passenger flow statistics.
Background
With the rapid development of the technical fields of machine vision and artificial intelligence, various acquisition monitoring analysis systems appear in the market; in the whole huge system, the camera is a very important part for acquiring information by the terminal, the imaging effect test of the camera has very great influence on the whole system, and in the process of implementing the invention, the inventor finds that at least the following problems exist in the prior art: at present, the testing means of the vehicle-mounted camera still stays in a manual construction environment, a group of pictures are shot, analysis is carried out at a PC (personal computer) end, the testing efficiency is low, batch detection of the camera cannot be rapidly realized, and a unified testing index and an automatic testing method are not formed.
Disclosure of Invention
In order to overcome the defects of the prior art, the embodiment of the disclosure provides an automatic detection device and a control system of a camera for passenger flow statistics, so that the efficiency of camera testing is improved, the problem of camera testing in the process of selecting types of cameras of different manufacturers is solved, and meanwhile, the testing cost of the camera is reduced. The technical scheme is as follows:
in a first aspect, an automatic detection device of a camera for passenger flow statistics is provided, the device comprises a chassis (201), a main body (202), a top cover (203) and a controller circuit board, wherein the main body (202) is positioned above the chassis (201), and the main body (202) is a camera test environment;
a hydraulic lifting platform (204) is fixed in the bottom frame (201),
the bottom surface of the main body (202) is provided with a circular hole, the upper part of the hydraulic lifting platform (204) is provided with a circular sheet with the same diameter as the circular hole, the circular sheet is provided with a steering engine for controlling the rotation of the camera rotating groove (205), the camera rotating groove (205) is arranged above the steering engine and used for placing a camera, the hydraulic lifting platform (204) moves upwards to push the tested camera (206) to rise into the main body from the bottom frame through the circular hole, when the hydraulic lifting platform (204) moves upwards to the maximum range, the lower surface of the circular sheet is flush with the lower surface of the bottom surface of the main body,
the top surface of the main body (202) is provided with a lamp tube group (213),
the inner side surface of the main body (202) is pasted with a test card (207) and a test card (208),
the front surface of the top cover (203) is fixedly provided with an indicator lamp group (210) and (212), an audible and visual alarm (214) and a power switch (216).
Preferably, the hydraulic lifting platform (204) is formed by a plurality of sections of cylinders with diameters gradually increasing from top to bottom, and each section of cylinder can be retracted into the next section of cylinder.
Preferably, the thickness of the circular thin sheet is thicker than that of the bottom plate of the main body (202).
Preferably, the front panel of the main body (202) includes a fixed portion and a sliding door (215).
Preferably, the fixed part occupies one third of the front panel, the sliding door (215) is closed to completely close the front panel, and the sliding door (215) is opened to two thirds of the front panel.
Preferably, the fixed portion of the front panel is mounted with a touch display (217); the touch display is used for realizing man-machine interaction, a user can set related parameters through the touch display, and a test process and a test result are displayed on a screen of the touch display.
Preferably, the controller circuit board is fixedly arranged inside the top cover (203).
Preferably, the indicator lamp group is respectively a power indicator lamp (210), an operation indicator lamp (211) and a pause indicator lamp (212), the power indicator lamp (210) is turned on after the power is connected to indicate that the device is powered on, the operation indicator lamp (211) is turned on when the detection is started, and the pause indicator lamp (212) is turned on when the detection is finished.
Preferably, the audible and visual alarm is used for triggering an audible and visual alarm signal when the camera is detected to be a defective product, and the audible and visual alarm can be stopped by pressing a confirmation key on the touch display after an operator receives the alarm signal.
Preferably, an external power interface is arranged on the back surface of the main body (202), and can be connected to a 220V alternating current power supply, and the 220V alternating current power supply is converted into direct current power required by the controller circuit board through a power adapter in the device.
Preferably, four sliding rollers are mounted at the bottom of the chassis (201).
Preferably, the model of the lamp tube group can be one or more of D65, D50, A, UV, U30, TL84 or U35.
Preferably, the test card (207) is adhered to any one surface or any two surfaces or any three surfaces or four surfaces of the front, back, left and right side panels of the main body (202).
Further, the test card is selected as follows: and selecting different test cards according to different camera test parameters.
Preferably, the touch display can be a resistor screen or a capacitor screen, and is connected with the controller circuit board in an HDMI interface mode.
In a second aspect, the automatic detection control system of the camera for passenger flow statistics comprises a video acquisition and conversion module (111), an indicator lamp set (112), a power supply module (121), a CPU minimum system (122), a hydraulic lifting control module (131), a motor driver (132), an acousto-optic alarm module (133) and a touch display (134), wherein the CPU minimum system (122) is electrically connected with other components respectively.
Preferably, the control system further comprises an Ethernet module (114) and a 4G communication module (115).
Further, the control system includes an AUDIO module (113).
Preferably, the CPU minimum system (122) is configured to detect whether the detected camera is connected, whether the camera can perform imaging, analysis of imaging effect of the camera, and the like, and control the hydraulic lifting table (204), control the rotating camera, the motor driver, output display content, and the like.
Preferably, the video capture conversion module (111) is configured to: (1) the analog signal ADC of the camera is sampled and converted into a digital signal, and then the digital signal (in the form of an interface such as mipi or pcie) is transmitted to a CPU minimum system (122); (2) the camera is powered by the (direct current 12V) of the controller circuit board, when the camera works normally, the controller circuit board generates current for the power supply part for supplying power to the camera, and whether the camera is connected successfully or not is judged according to whether the central controller detects the current or not.
Preferably, the touch display (134) is used for realizing human-computer interaction, and a user can set related parameters, test processes and test results through the touch display and display the related parameters, the test processes and the test results on a screen of the touch display.
Preferably, the indicator light group (112) has 3 indicator lights, which are respectively a power indicator light, an operation indicator light and a pause indicator light, the power indicator light is turned on after the main power supply (alternating current 220V) is connected to indicate that the device is powered on, the operation indicator light is turned on when the detection is started, and the pause indicator light is turned on when the detection is finished.
Preferably, the audible and visual alarm is used for triggering an audible and visual alarm signal when the camera is detected to be a defective product, and the audible and visual alarm can be stopped by pressing a confirmation key on the touch display after an operator receives the alarm signal.
Preferably, the touch display can be a resistor screen or a capacitor screen, and is connected with the controller circuit board in an HDMI interface mode.
Compared with the prior art, one of the technical schemes has the following beneficial effects: this automatic detection device of camera, the collection of camera test, handle, the analysis, process collection such as output, demonstration is as an organic whole, has simplified the flow that the camera detected greatly, the user only need to be surveyed the camera put in the camera groove can, can realize direct display real-time analysis result, audible and visual alarm when the defective products appearing has solved unable batch test camera imaging effect, camera function detection efficiency is low and the problem of leaking the inspection easily. The device realizes real-time display of the detection effect of the camera, improves the detection efficiency of the camera, solves the problem of testing the cameras of different manufacturers in the process of selecting the cameras, and unifies the test scenes of the cameras of different manufacturers.
Drawings
Fig. 1 is a diagram of an automatic detection device of a camera for passenger flow statistics according to an embodiment of the present disclosure.
Fig. 2 is a schematic view of an automatic detection control system of a camera for passenger flow statistics according to an embodiment of the present disclosure.
Detailed Description
For the purpose of enhancing understanding of the present invention, the present invention will be further described in detail with reference to the following examples, which are provided for illustration only and are not to be construed as limiting the scope of the present invention.
All the above optional technical solutions may be combined arbitrarily to form the optional embodiments of the present disclosure, and are not described herein again.
The following test scenario in which the passenger flow statistics camera is used is an exemplary application scenario of the embodiment of the present application, but the automatic camera test device and the control system of the present application are not only used for selecting the type of the camera in the passenger flow statistics scenario, but also used for testing the camera in any other scenario.
In a first aspect, an automatic detection device of a camera for passenger flow statistics is provided, the device comprises a chassis (201), a main body (202), a top cover (203) and a controller circuit board, wherein the main body (202) is positioned above the chassis (201), and the main body (202) is a camera test environment;
the hydraulic lifting platform (204) is fixed in the bottom frame (201), and in order to facilitate replacement of a camera, other three surfaces of the bottom frame except the rear panel are hollowed out.
The bottom surface of main part (202) has the circular port, hydraulic lifting platform (204) upper portion has the circular thin slice with the same diameter of circular port, be provided with the rotatory steering wheel of control camera swivelling chute (205) on the circular thin slice, the steering wheel top is provided with camera swivelling chute (205), be used for placing the camera, hydraulic lifting platform (204) reciprocate, can push up measured camera (206), when hydraulic lifting platform (204) up move the maximum range, the circular thin slice flushes with the main part bottom surface, it is further, the thickness of circular thin slice is thicker than main part (202) bottom surface plate thickness.
The top surface of main part (202) is provided with banks of lamps (213), and further, banks of lamps model can select one or more in D65 or D50 or A or UV or U30 or TL84 or U35, and the lamp part user can be adjusted according to own needs, through banks of lamps, can provide different light sources, the various light test environment of illumination that are different, can test a plurality of key imaging indexes of camera, the actual complicated light environment in scene of higher degree reduction.
Any one or any two or any three or all four of the front, rear, left and right side panels of the main body (202) is adhered with a test card (207) 208), preferably, the corresponding test card is selected according to different camera test parameters, such as the test card (207) for testing the focal length and definition, and the test card (208) for testing the indexes such as the color restoration degree and the low illumination degree.
The front panel of the main body comprises a fixed part and a movable sliding door (215), preferably, the fixed part accounts for one third of the front panel, the movable sliding door (215) can be closed completely, the movable sliding door (215) is opened to two thirds of the front panel, and the front panel is opened to a larger extent so as to facilitate the operation in the main body, such as lamp tube replacement, test card replacement, camera debugging and the like; further, a touch display (217) is mounted on the fixed portion of the front panel; the touch display is used for realizing man-machine interaction, a user can set related parameters through the touch display, and a test process and a test result are displayed on a screen of the touch display. Furthermore, the touch display can be a resistor screen or a capacitor screen and is connected with the controller circuit board in an HDMI interface mode.
The front surface of the top cover (203) is fixedly provided with an indicator light group (210) and 212), an audible and visual alarm (214) and a power switch (216); preferably, the controller circuit board is fixedly arranged inside the top cover (203); furthermore, the indicating lamp group is respectively a power supply indicating lamp (210), an operation indicating lamp (211) and a pause indicating lamp (212), the power supply indicating lamp (210) is turned on after the power supply (alternating current 220V) is connected, the power supply indicating device is powered on, the operation indicating lamp (211) is turned on when the detection is started, and the pause indicating lamp (212) is turned on when the detection is finished. And the audible and visual alarm is used for triggering an audible and visual alarm signal when the camera is detected to be a defective product, and the operator presses the confirmation key on the touch display after receiving the alarm signal, so that the audible and visual alarm can be stopped.
Preferably, an external power interface is mounted on the back of the main body (202), and can be connected to a 220V alternating current power supply, and the 220V alternating current power supply is converted into a 24V direct current power supply (direct current power supply) required by the controller circuit board through a power adapter inside the device.
The operation flow of the device is briefly described as follows: turning on a power switch key, wherein a power indicator lamp is on at the moment to indicate that an electrical system starts to be electrified, and a controller circuit board automatically controls the hydraulic lifting platform to be adjusted downwards to the bottom; placing the camera in the camera rotating groove, inserting the camera into the input end of the controller circuit board, if the controller circuit board detects the camera, the detected camera is normal, the hydraulic lifting platform rises to the maximum range, and the operation indicator light is on; (if the controller circuit board cannot detect the camera, the camera is damaged or is not connected properly) the controller circuit board controls a steering engine below a camera rotating groove, the steering engine rotates to the angle of 0 degree and irradiates the test card, the controller circuit board automatically detects whether the shot picture of the test card is normal, if the test picture detected by the controller circuit board is normal, the light brightness is adjusted through a lamp tube group, and the picture of the test card under different brightness is continuously monitored; aiming at each test card picture, the system automatically calculates the focal length and definition of the camera; similarly, the picture of the test card is monitored, the controller circuit board controls a steering engine below the camera rotating groove to rotate to 90 degrees and irradiate the test card, the test operation of the test card is completed by the same method, and then the test result of the color reduction degree and the low illumination degree is displayed on the touch display. If a plurality of parameters of the camera are to be measured, the corresponding test card is placed on the inner wall of the main body.
In a second aspect, an automatic detection control system of a camera for passenger flow statistics is provided, where the control system includes a video acquisition and conversion module (111), an indicator light group (112), a power module (121), a CPU minimum system (122), a hydraulic lifting control module (131), a motor driver (132), an audible and visual alarm module (133), and a touch display (134), and the CPU minimum system (122) is electrically connected to other components, as shown in fig. 1.
Preferably, in order to realize remote monitoring or realize communication with other equipment, the control system further comprises an Ethernet module (114), a 4G communication module (115) and other communication modules (123); further, in order to realize the voice playing function, the control system also comprises an AUDIO module (113).
Preferably, the CPU minimum system (122) is configured to detect whether a camera to be tested is connected, whether the camera can perform imaging, analysis of imaging effect of the camera, and the like, and control the hydraulic lifting table (204), the motor driver, output display content, and the like; other functional parts are also completed by a central processing minimum system, and the CPU minimum system (122) is the brain of the controller circuit board;
preferably, the video capture conversion module (111) is configured to: (1) the analog signal ADC of the camera is sampled and converted into a digital signal, and then the digital signal (in the form of an interface such as mipi or pcie) is transmitted to a CPU minimum system (122); (2) the camera is supplied with power by the direct current 12V of the controller circuit board, when the camera normally works, the controller circuit board generates current for the power supply part of the camera, whether the camera is successfully connected or not is judged according to whether the central controller detects the current, whether the camera is damaged or not can be judged, or the camera is not correctly connected, namely, the camera is not required to be found to have problems after the formal detection of the camera, whether the camera is damaged or not can be preliminarily judged before the formal detection, and therefore preliminary screening is carried out.
And the touch display (134) is used for realizing man-machine interaction, a user can set related parameters through the touch display, and a test process and a test result are displayed on a screen of the touch display. Furthermore, the touch display can be a resistor screen or a capacitor screen and is connected with the controller circuit board in an HDMI interface mode.
The indicating lamp group (112) is provided with 3 indicating lamps which are respectively a power indicating lamp, an operation indicating lamp and a pause indicating lamp, the power indicating lamp is turned on after a main power supply (alternating current 220V) is connected, the power indicating device is powered on, the operation indicating lamp is turned on when the detection is started, and the pause indicating lamp is turned on when the detection is finished.
And the audible and visual alarm is used for triggering an audible and visual alarm signal when the camera is detected to be a defective product, and the operator presses the confirmation key on the touch display after receiving the alarm signal, so that the audible and visual alarm can be stopped.
The invention has been described above by way of example with reference to the accompanying drawings, it being understood that the invention is not limited to the specific embodiments described above, but is capable of numerous insubstantial modifications when implemented in accordance with the principles and solutions of the present invention; or directly apply the conception and the technical scheme of the invention to other occasions without improvement and equivalent replacement, and the invention is within the protection scope of the invention.
Claims (6)
1. The automatic detection device of the camera for passenger flow statistics is characterized by comprising a bottom frame (201), a main body (202), a top cover (203) and a controller circuit board, wherein the main body (202) is positioned above the bottom frame (201), and the main body (202) is a camera test environment;
a hydraulic lifting platform (204) is fixed in the bottom frame (201),
the bottom surface of the main body (202) is provided with a circular hole, the upper part of the hydraulic lifting platform (204) is provided with a circular sheet with the same diameter as the circular hole, the circular sheet is provided with a steering engine for controlling the rotation of the camera rotating groove (205), the camera rotating groove (205) is arranged above the steering engine and used for placing a camera, the hydraulic lifting platform (204) moves upwards to push the tested camera (206) to rise into the main body from the bottom frame through the circular hole, when the hydraulic lifting platform (204) moves upwards to the maximum range, the lower surface of the circular sheet is flush with the lower surface of the bottom surface of the main body,
the top surface of the main body (202) is provided with a lamp tube group (213),
the inner side surface of the main body (202) is pasted with a test card (207) and a test card (208),
the front surface of the top cover (203) is fixedly provided with an indicator lamp group (210) and (212), an audible and visual alarm (214) and a power switch (216).
2. The automatic detection device of a camera for passenger flow statistics as claimed in claim 1, wherein the hydraulic lifting platform (204) is composed of a plurality of sections of cylinders with diameters gradually increasing from top to bottom, and each section of cylinder can be retracted into the next section of cylinder.
3. The device for the automated inspection of a camera for statistics of passenger flow according to claim 1, wherein the thickness of the circular sheet is thicker than the thickness of the bottom plate of the main body (202).
4. The device for the automated detection of a camera for statistics of passenger flow according to claim 1, characterized in that the front panel of the main body (202) comprises a fixed part and a mobile sliding door (215).
5. The automatic detection device of a camera for passenger flow statistics according to claim 4, characterized in that the fixed part is one third of the front panel, the sliding door (215) is closed to completely close the front panel, and the sliding door (215) is opened to two thirds of the front panel.
6. The automatic detection device of a passenger flow statistics camera according to claim 4, characterized in that the fixed part of the front panel is equipped with a touch display (217); the touch display is used for realizing man-machine interaction, a user can set related parameters through the touch display, and a test process and a test result are displayed on a screen of the touch display.
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| KR20090008816A (en) * | 2007-07-19 | 2009-01-22 | 삼성전기주식회사 | Image test apparatus for change of chart |
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| CN111491160A (en) | 2020-08-04 |
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