CN109120895B - Device for verifying running state of safety channel indicator lamp - Google Patents
Device for verifying running state of safety channel indicator lamp Download PDFInfo
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- 238000004458 analytical method Methods 0.000 claims description 27
- 238000003709 image segmentation Methods 0.000 claims description 23
- 238000012544 monitoring process Methods 0.000 claims description 18
- 238000012790 confirmation Methods 0.000 claims description 15
- 238000001514 detection method Methods 0.000 claims description 9
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- 238000004891 communication Methods 0.000 claims description 7
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- 238000012795 verification Methods 0.000 abstract description 14
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T5/00—Image enhancement or restoration
- G06T5/90—Dynamic range modification of images or parts thereof
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/10—Segmentation; Edge detection
- G06T7/136—Segmentation; Edge detection involving thresholding
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/24—Reminder alarms, e.g. anti-loss alarms
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10016—Video; Image sequence
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Abstract
The invention relates to a device for verifying the running state of an indicator light of a safety channel, which comprises: the safety channel indicator lamp is arranged above the safety channel of the stage and used for displaying a safety icon corresponding to the safety channel by using green background light so as to indicate the position of the safety channel to audiences; the control switch is connected with the safety channel indicator lamp, arranged above a safety channel of the stage and used for controlling the safety channel indicator lamp to be turned on or turned off; the field video recording equipment is used for carrying out video recording operation on the stage-oriented safety channel so as to obtain and output a corresponding safety channel entrance image; and the brightness extraction device is connected with the field video recording device and is used for sending a scene transfer signal when the difference between the overall brightness value of the safe channel entrance image and the overall brightness value of the standard scene image exceeds a preset brightness difference threshold value. By the method and the device, the efficiency of stage equipment state verification is improved.
Description
Technical Field
The invention relates to the field of equipment maintenance, in particular to a device for verifying the running state of an indicator light of a safety channel.
Background
The working principle of the safety channel indicator lamp is as follows: the novel LED lamp is characterized in that two sets of power supply systems are arranged inside the LED lamp, one set of power supply systems supplies power to the lamp through an internal storage battery, the other set of power supply systems supplies power to the lamp through an external power supply and charges the storage battery at the same time, and the circuit can be switched to a mode of supplying power to the storage battery when the external power supply is disconnected (powered off). This allows the indicator light to remain illuminated when the power to the indicator light should be turned off. The indicating illumination system is mainly provided with a power supply independent control type, a normal power supply is connected with a common illumination power supply loop and charges an emergency lamp storage battery at ordinary times, and when the normal power supply is cut off, a standby power supply (storage battery) automatically supplies power.
The inside of each lamp of the indicator lamp in the form is provided with a large number of electronic components such as voltage transformation, voltage stabilization, charging, inversion and storage batteries, and the battery of the indicator lamp needs to be charged and discharged when the indicator lamp is used, overhauled and failed. The other type is a centralized power supply control type, an independent power supply is not arranged in the indicating lamp, and when the normal lighting power supply fails, the centralized power supply system supplies power. In the emergency lighting system in the form, all complex electronic circuits in the lamps are omitted, the indicating lighting lamps are not different from common lamps, and the centralized power supply system is arranged in a special room.
Disclosure of Invention
In order to solve the technical problem that the running state of the safety channel indicator lamp cannot be automatically checked in the stage, the invention provides a running state checking device of the safety channel indicator lamp, which adopts a high-precision image recognition mechanism to position the safety channel indicator lamp and search the safety icon, and sends out an indicator lamp fault signal to remind related managers of correspondingly overhauling the safety icon when the safety icon is not searched; determining the intensity of performing feature deepening processing on the shot image based on the dynamic range of the image so as to perform high-intensity feature deepening processing on the image with a narrow dynamic range, thereby facilitating subsequent target detection and identification operations; an image segmentation threshold correction mechanism based on content uniformity, content definition and contrast is established, and the effectiveness of subsequent target area identification is improved; the judgment precision of the change of the video recording scene of the field video recording equipment is improved through the step-by-step comparison result of the brightness comparison and the mean square error comparison, and valuable reference data are provided for a rear monitoring center to adopt an emergency strategy.
According to an aspect of the present invention, there is provided a safe passage indicating lamp operation state verifying apparatus, including:
the safety channel indicator lamp is arranged above the safety channel of the stage and used for displaying a safety icon corresponding to the safety channel by using green background light so as to indicate the position of the safety channel to audiences;
the control switch is connected with the safety channel indicator lamp, arranged above a safety channel of the stage and used for controlling the safety channel indicator lamp to be turned on or turned off;
the system comprises a field video recording device, a stage video recording device and a stage video recording device, wherein the field video recording device is used for carrying out video recording operation on a safety channel facing the stage so as to obtain and output corresponding safety channel entrance images, and the safety channel entrance images comprise images of safety channel indicator lamps positioned above the safety channel;
the brightness extraction device is connected with the field video recording device and is used for receiving the safe channel inlet image, acquiring the whole brightness value of a pre-stored standard scene image, and sending a scene transfer signal when the difference between the whole brightness value of the safe channel inlet image and the whole brightness value of the standard scene image exceeds a preset brightness difference threshold, wherein the standard scene image is an image which is shot by the field video recording device in advance for a preset monitoring scene;
the characteristic value extraction device is connected with the brightness extraction device and used for entering a working state from a power saving state when the scene transition signal is received, and executing the following operations in the working state: acquiring each pixel value of each pixel point of the safe channel entrance image, performing a mean square error solving operation on each pixel value of the safe channel entrance image to acquire a field mean square error value, and performing a mean square error solving operation on each pixel value of the standard scene image to acquire a scene mean square error value;
the alarm triggering device is connected with the characteristic value extraction device and used for receiving the field mean square error value and the scene mean square error value and sending a transfer confirmation signal when the field mean square error value is not matched with the scene mean square error value;
the WIFI communication interface is respectively connected with the characteristic value extraction equipment and the alarm triggering equipment, and is used for forwarding the transfer confirmation signal to a monitoring server at the rear part when receiving the transfer confirmation signal and simultaneously sending the safe channel entrance image and the standard scene image to the monitoring server at the rear part together;
the uniformity analysis equipment is connected with the field video recording equipment and used for receiving the safe channel inlet image, determining the content uniformity degree of the safe channel inlet image based on the pixel value distribution condition of the pixel points of the safe channel inlet image and outputting the content uniformity degree;
the definition analysis equipment is used for receiving the safe channel entrance image, determining the content definition of the safe channel entrance image based on the dynamic pixel value distribution range of the pixel points of the safe channel entrance image, and outputting the content definition;
the contrast analysis equipment is used for receiving the safe channel entrance image, detecting the contrast of the safe channel entrance image and outputting the contrast;
the parameter identification device is respectively connected with the uniformity analysis device, the definition analysis device and the contrast analysis device and is used for receiving the content uniformity degree, the content definition degree and the contrast, determining an influence coefficient of the content uniformity degree on an image segmentation threshold value based on the content uniformity degree, determining an influence coefficient of the content definition degree on the image segmentation threshold value based on the content definition degree and determining an influence coefficient of the content definition degree on the image segmentation threshold value based on the contrast;
the image segmentation equipment is connected with the parameter identification equipment and used for correcting an image segmentation threshold value simultaneously based on three influence coefficients acquired from the parameter identification equipment and segmenting the safe channel entrance image based on the corrected image segmentation threshold value so as to obtain and output a target area with various targets;
the wiener filtering equipment is connected with the image segmentation equipment and is used for receiving the target area, executing wiener filtering processing on the target area to obtain a corresponding image to be processed and outputting the image to be processed;
the parameter analysis equipment is connected with the wiener filtering equipment and used for receiving the image to be processed, analyzing the dynamic range of the image to be processed and outputting the dynamic range of the image to be processed;
the automatic processing equipment is connected with the parameter analysis equipment and is used for receiving the dynamic range of the image to be processed and the image to be processed, determining the intensity of executing the characteristic deepening processing on the image to be processed according to the dynamic range of the image to be processed, and outputting an automatic processing image obtained after executing the characteristic deepening processing;
the image analysis equipment is connected with the automatic processing equipment and used for receiving the automatic processing image, acquiring each green channel value of each pixel point in the automatic processing image, determining each pixel point of which the green channel value is within a preset green channel value range as an indicator light pixel point, and combining each indicator light pixel point into an indicator light image;
and the icon identification equipment is connected with the graphic analysis equipment and is used for receiving the indicator light graph, determining whether a target corresponding to the safety icon exists in the indicator light graph or not, and sending out an indicator light fault signal when the target does not exist.
More specifically, in the safe passage indicator lamp operation state verification device: and the icon identification device is also used for sending out an indicator lamp effective signal when determining that the target corresponding to the safety icon exists in the indicator lamp graph.
More specifically, in the safe passage indicator lamp operation state verification device: in a WIFI communication interface, forwarding the transfer confirmation signal to a monitoring server at the rear, and sending the safe channel entrance image and the standard scene image together to the monitoring server at the rear comprises: and packaging the transfer confirmation signal, the safe channel entrance image and the standard scene image together, and sending the packaged data to a monitoring server behind.
More specifically, in the safe passage indicator lamp operation state verification device: and the brightness extraction device is further used for sending a scene invariant signal when the difference between the overall brightness value of the safe channel entrance image and the overall brightness value of the standard scene image does not exceed the preset brightness difference threshold.
More specifically, in the safe passage indicator lamp operation state verification device: and the alarm triggering equipment is also used for sending a transfer unconfirmed signal when the field mean square error value is matched with the scene mean square error value.
More specifically, in the safe passage indicator lamp operation state verification device: in the automatic processing apparatus, the wider the dynamic range of the image to be processed, the less the intensity of performing the feature deepening processing on the image to be processed.
More specifically, in the safe passage indicator lamp operation state verification device: the field video recording equipment comprises storage capacity detection equipment and a storage card, wherein the storage card is used for storing the secure channel entrance images of multiple frames which are obtained by the field video recording equipment and are continuous in time;
the storage capacity detection device is connected with the storage card and used for measuring the current residual storable capacity of the storage card.
Detailed Description
The following will describe in detail an embodiment of the safe passage indicating lamp operation state verifying apparatus of the present invention.
The safety channel indicator light is suitable for fire emergency lighting, is the most common lighting tool in fire emergency, is made of industrial plastics and high-brightness bulbs, is mainly white in color, and has two arrows on the surface. The fire-fighting emergency lamp has long emergency time, high brightness and automatic emergency function in power failure. The fire-fighting emergency lamp has the installation modes of wall-mounted type, portable type and hanging type. The fire-fighting emergency lamp has the characteristics of reliable work, high stability, low power consumption, high brightness, long service life and the like, and is provided with a power switch and a display lamp on the side and widely installed in corridors and fire-fighting channels in public places.
In order to overcome the defects, the invention builds a device for verifying the running state of the safety channel indicator lamp, and can effectively solve the corresponding technical problem.
The device for verifying the running state of the safety channel indicator lamp comprises:
the safety channel indicator lamp is arranged above the safety channel of the stage and used for displaying a safety icon corresponding to the safety channel by using green background light so as to indicate the position of the safety channel to audiences;
the control switch is connected with the safety channel indicator lamp, arranged above a safety channel of the stage and used for controlling the safety channel indicator lamp to be turned on or turned off;
the system comprises a field video recording device, a stage video recording device and a stage video recording device, wherein the field video recording device is used for carrying out video recording operation on a safety channel facing the stage so as to obtain and output corresponding safety channel entrance images, and the safety channel entrance images comprise images of safety channel indicator lamps positioned above the safety channel;
the brightness extraction device is connected with the field video recording mechanism and used for receiving the safe channel inlet image, acquiring the whole brightness value of a pre-stored standard scene image, and sending a scene transfer signal when the difference between the whole brightness value of the safe channel inlet image and the whole brightness value of the standard scene image exceeds a preset brightness difference threshold, wherein the standard scene image is an image which is shot by the field video recording device in advance for a preset monitoring scene;
the characteristic value extraction device is connected with the brightness extraction device and used for entering a working state from a power saving state when the scene transition signal is received, and executing the following operations in the working state: acquiring each pixel value of each pixel point of the safe channel entrance image, performing a mean square error solving operation on each pixel value of the safe channel entrance image to acquire a field mean square error value, and performing a mean square error solving operation on each pixel value of the standard scene image to acquire a scene mean square error value;
the alarm triggering device is connected with the characteristic value extraction device and used for receiving the field mean square error value and the scene mean square error value and sending a transfer confirmation signal when the field mean square error value is not matched with the scene mean square error value;
the WIFI communication interface is respectively connected with the characteristic value extraction equipment and the alarm triggering equipment, and is used for forwarding the transfer confirmation signal to a monitoring server at the rear part when receiving the transfer confirmation signal and simultaneously sending the safe channel entrance image and the standard scene image to the monitoring server at the rear part together;
the uniformity analysis equipment is connected with the field video recording equipment and used for receiving the safe channel inlet image, determining the content uniformity degree of the safe channel inlet image based on the pixel value distribution condition of the pixel points of the safe channel inlet image and outputting the content uniformity degree;
the definition analysis equipment is used for receiving the safe channel entrance image, determining the content definition of the safe channel entrance image based on the dynamic pixel value distribution range of the pixel points of the safe channel entrance image, and outputting the content definition;
the contrast analysis equipment is used for receiving the safe channel entrance image, detecting the contrast of the safe channel entrance image and outputting the contrast;
the parameter identification device is respectively connected with the uniformity analysis device, the definition analysis device and the contrast analysis device and is used for receiving the content uniformity degree, the content definition degree and the contrast, determining an influence coefficient of the content uniformity degree on an image segmentation threshold value based on the content uniformity degree, determining an influence coefficient of the content definition degree on the image segmentation threshold value based on the content definition degree and determining an influence coefficient of the content definition degree on the image segmentation threshold value based on the contrast;
the image segmentation equipment is connected with the parameter identification equipment and used for correcting an image segmentation threshold value simultaneously based on three influence coefficients acquired from the parameter identification equipment and segmenting the safe channel entrance image based on the corrected image segmentation threshold value so as to obtain and output a target area with various targets;
the wiener filtering equipment is connected with the image segmentation equipment and is used for receiving the target area, executing wiener filtering processing on the target area to obtain a corresponding image to be processed and outputting the image to be processed;
the parameter analysis equipment is connected with the wiener filtering equipment and used for receiving the image to be processed, analyzing the dynamic range of the image to be processed and outputting the dynamic range of the image to be processed;
the automatic processing equipment is connected with the parameter analysis equipment and is used for receiving the dynamic range of the image to be processed and the image to be processed, determining the intensity of executing the characteristic deepening processing on the image to be processed according to the dynamic range of the image to be processed, and outputting an automatic processing image obtained after executing the characteristic deepening processing;
the image analysis equipment is connected with the automatic processing equipment and used for receiving the automatic processing image, acquiring each green channel value of each pixel point in the automatic processing image, determining each pixel point of which the green channel value is within a preset green channel value range as an indicator light pixel point, and combining each indicator light pixel point into an indicator light image;
and the icon identification equipment is connected with the graphic analysis equipment and is used for receiving the indicator light graph, determining whether a target corresponding to the safety icon exists in the indicator light graph or not, and sending out an indicator light fault signal when the target does not exist.
Next, a detailed description will be given of the specific structure of the safe passage indicator lamp operation state verification device of the present invention.
In the safety channel indicator lamp running state verification device: and the icon identification device is also used for sending out an indicator lamp effective signal when determining that the target corresponding to the safety icon exists in the indicator lamp graph.
In the safety channel indicator lamp running state verification device: in a WIFI communication interface, forwarding the transfer confirmation signal to a monitoring server at the rear, and sending the safe channel entrance image and the standard scene image together to the monitoring server at the rear comprises: and packaging the transfer confirmation signal, the safe channel entrance image and the standard scene image together, and sending the packaged data to a monitoring server behind.
In the safety channel indicator lamp running state verification device: and the brightness extraction device is further used for sending a scene invariant signal when the difference between the overall brightness value of the safe channel entrance image and the overall brightness value of the standard scene image does not exceed the preset brightness difference threshold.
In the safety channel indicator lamp running state verification device: and the alarm triggering equipment is also used for sending a transfer unconfirmed signal when the field mean square error value is matched with the scene mean square error value.
In the safety channel indicator lamp running state verification device: in the automatic processing apparatus, the wider the dynamic range of the image to be processed, the less the intensity of performing the feature deepening processing on the image to be processed.
And in the safety channel indicator lamp running state verification device: the field video recording equipment comprises storage capacity detection equipment and a storage card, wherein the storage card is used for storing the secure channel entrance images of multiple frames which are obtained by the field video recording equipment and are continuous in time;
the storage capacity detection device is connected with the storage card and used for measuring the current residual storable capacity of the storage card.
Additionally, WIFI is a technology that allows an electronic device to connect to a Wireless Local Area Network (WLAN), typically using the 2.4G UHF or 5G SHF ISM radio frequency bands. Connecting to a wireless local area network is typically password protected; but may be open, allowing any device within range of the WLAN to connect. WIFI is a brand of wireless network communication technology, held by the WIFI alliance. The object is to improve the interoperability between wireless network products based on the IEEE 802.11 standard. Local area networks using the IEEE 802.11 family of protocols are known as wireless fidelity. Even WIFI is equated to the wireless internet (WIFI is an important component of WLAN).
By adopting the device for verifying the running state of the safety channel indicator lamp, aiming at the technical problem that the detection mechanism of the safety channel indicator lamp in the prior art is lagged behind, the high-precision image recognition mechanism is adopted to position the safety channel indicator lamp and search for the safety icon, and when the safety icon is not searched, an indicator lamp fault signal is sent out to remind related managers of correspondingly overhauling the safety icon; determining the intensity of performing feature deepening processing on the shot image based on the dynamic range of the image so as to perform high-intensity feature deepening processing on the image with a narrow dynamic range, thereby facilitating subsequent target detection and identification operations; an image segmentation threshold correction mechanism based on content uniformity, content definition and contrast is established, and the effectiveness of subsequent target area identification is improved; the judgment precision of the change of the video recording scene of the field video recording equipment is improved through the step-by-step comparison result of the brightness comparison and the mean square error comparison, and valuable reference data are provided for a rear monitoring center to adopt an emergency strategy, so that the technical problem is solved.
It is to be understood that while the present invention has been described in conjunction with the preferred embodiments thereof, it is not intended to limit the invention to those embodiments. It will be apparent to those skilled in the art from this disclosure that many changes and modifications can be made, or equivalents modified, in the embodiments of the invention without departing from the scope of the invention. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are still within the scope of the protection of the technical solution of the present invention, unless the contents of the technical solution of the present invention are departed.
Claims (7)
1. The utility model provides a safe passageway pilot lamp running state verifies device which characterized in that:
the safety channel indicator lamp is arranged above the safety channel of the stage and used for displaying a safety icon corresponding to the safety channel by using green background light so as to indicate the position of the safety channel to audiences;
the control switch is connected with the safety channel indicator lamp, arranged above a safety channel of the stage and used for controlling the safety channel indicator lamp to be turned on or turned off;
the system comprises a field video recording device, a stage video recording device and a stage video recording device, wherein the field video recording device is used for carrying out video recording operation on a safety channel facing the stage so as to obtain and output corresponding safety channel entrance images, and the safety channel entrance images comprise images of safety channel indicator lamps positioned above the safety channel;
the brightness extraction device is connected with the field video recording device and is used for receiving the safe channel inlet image, acquiring the whole brightness value of a pre-stored standard scene image, and sending a scene transfer signal when the difference between the whole brightness value of the safe channel inlet image and the whole brightness value of the standard scene image exceeds a preset brightness difference threshold, wherein the standard scene image is an image which is shot by the field video recording device in advance for a preset monitoring scene;
the characteristic value extraction device is connected with the brightness extraction device and used for entering a working state from a power saving state when the scene transition signal is received, and executing the following operations in the working state: acquiring each pixel value of each pixel point of the safe channel entrance image, performing a mean square error solving operation on each pixel value of the safe channel entrance image to acquire a field mean square error value, and performing a mean square error solving operation on each pixel value of the standard scene image to acquire a scene mean square error value;
the alarm triggering device is connected with the characteristic value extraction device and used for receiving the field mean square error value and the scene mean square error value and sending a transfer confirmation signal when the field mean square error value is not matched with the scene mean square error value;
the WIFI communication interface is respectively connected with the characteristic value extraction equipment and the alarm triggering equipment, and is used for forwarding the transfer confirmation signal to a monitoring server at the rear part when receiving the transfer confirmation signal and simultaneously sending the safe channel entrance image and the standard scene image to the monitoring server at the rear part together;
the uniformity analysis equipment is connected with the field video recording equipment and used for receiving the safe channel inlet image, determining the content uniformity degree of the safe channel inlet image based on the pixel value distribution condition of the pixel points of the safe channel inlet image and outputting the content uniformity degree;
the definition analysis equipment is used for receiving the safe channel entrance image, determining the content definition of the safe channel entrance image based on the dynamic pixel value distribution range of the pixel points of the safe channel entrance image, and outputting the content definition;
the contrast analysis equipment is used for receiving the safe channel entrance image, detecting the contrast of the safe channel entrance image and outputting the contrast;
the parameter identification device is respectively connected with the uniformity analysis device, the definition analysis device and the contrast analysis device and is used for receiving the content uniformity degree, the content definition degree and the contrast, determining an influence coefficient of the content uniformity degree on an image segmentation threshold value based on the content uniformity degree, determining an influence coefficient of the content definition degree on the image segmentation threshold value based on the content definition degree and determining an influence coefficient of the content definition degree on the image segmentation threshold value based on the contrast;
the image segmentation equipment is connected with the parameter identification equipment and used for correcting an image segmentation threshold value simultaneously based on three influence coefficients acquired from the parameter identification equipment and segmenting the safe channel entrance image based on the corrected image segmentation threshold value so as to obtain and output a target area with various targets;
the wiener filtering equipment is connected with the image segmentation equipment and is used for receiving the target area, executing wiener filtering processing on the target area to obtain a corresponding image to be processed and outputting the image to be processed;
the parameter analysis equipment is connected with the wiener filtering equipment and used for receiving the image to be processed, analyzing the dynamic range of the image to be processed and outputting the dynamic range of the image to be processed;
the automatic processing equipment is connected with the parameter analysis equipment and is used for receiving the dynamic range of the image to be processed and the image to be processed, determining the intensity of executing the characteristic deepening processing on the image to be processed according to the dynamic range of the image to be processed, and outputting an automatic processing image obtained after executing the characteristic deepening processing;
the image analysis equipment is connected with the automatic processing equipment and used for receiving the automatic processing image, acquiring each green channel value of each pixel point in the automatic processing image, determining each pixel point of which the green channel value is within a preset green channel value range as an indicator light pixel point, and combining each indicator light pixel point into an indicator light image;
and the icon identification equipment is connected with the graphic analysis equipment and is used for receiving the indicator light graph, determining whether a target corresponding to the safety icon exists in the indicator light graph or not, and sending out an indicator light fault signal when the target does not exist.
2. The safe passage indicating lamp operation state verifying device as claimed in claim 1, wherein:
and the icon identification device is also used for sending out an indicator lamp effective signal when determining that the target corresponding to the safety icon exists in the indicator lamp graph.
3. The safe passage indicating lamp operation state verifying device as claimed in claim 2, wherein:
in a WIFI communication interface, forwarding the transfer confirmation signal to a monitoring server at the rear, and sending the safe channel entrance image and the standard scene image together to the monitoring server at the rear comprises: and packaging the transfer confirmation signal, the safe channel entrance image and the standard scene image together, and sending the packaged data to a monitoring server behind.
4. The safe passage indicating lamp operation state verifying device as claimed in claim 3, wherein:
and the brightness extraction device is further used for sending a scene invariant signal when the difference between the overall brightness value of the safe channel entrance image and the overall brightness value of the standard scene image does not exceed the preset brightness difference threshold.
5. The safe passage indicating lamp operation status verifying device as claimed in claim 4, wherein:
and the alarm triggering equipment is also used for sending a transfer unconfirmed signal when the field mean square error value is matched with the scene mean square error value.
6. The safe passage indicating lamp operation state verifying device as claimed in claim 5, wherein:
in the automatic processing apparatus, the wider the dynamic range of the image to be processed, the less the intensity of performing the feature deepening processing on the image to be processed.
7. The safe passage indicating lamp operation state verifying apparatus as claimed in any one of claims 1 to 6, wherein:
the field video recording equipment comprises storage capacity detection equipment and a storage card, wherein the storage card is used for storing the secure channel entrance images of multiple frames which are obtained by the field video recording equipment and are continuous in time;
the storage capacity detection device is connected with the storage card and used for measuring the current residual storable capacity of the storage card.
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| CN111029917A (en) * | 2019-11-07 | 2020-04-17 | 张彩萍 | Power transformation cabinet |
| CN110986199A (en) * | 2019-11-07 | 2020-04-10 | 毛春根 | Indoor purifier |
| CN111006321A (en) * | 2019-11-07 | 2020-04-14 | 张彩萍 | Cabinet air conditioner for laboratory |
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