CN113955598B - Elevator display device monitoring system - Google Patents

Elevator display device monitoring system Download PDF

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Publication number
CN113955598B
CN113955598B CN202111232971.5A CN202111232971A CN113955598B CN 113955598 B CN113955598 B CN 113955598B CN 202111232971 A CN202111232971 A CN 202111232971A CN 113955598 B CN113955598 B CN 113955598B
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display
monitored
elevator
display device
monomer
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CN113955598A (en
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陈玉东
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Shanghai Mitsubishi Elevator Co Ltd
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Shanghai Mitsubishi Elevator Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B3/00—Applications of devices for indicating or signalling operating conditions of elevators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B3/00—Applications of devices for indicating or signalling operating conditions of elevators
    • B66B3/002—Indicators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B50/00—Energy efficient technologies in elevators, escalators and moving walkways, e.g. energy saving or recuperation technologies

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  • Indicating And Signalling Devices For Elevators (AREA)

Abstract

The invention discloses an elevator display device monitoring system, which comprises: an acquisition unit for acquiring all possible display contents of the elevator display device; the to-be-monitored monomer determining unit is used for determining all display monomers which are driven to be displayed at least once in the using process of the elevator display device according to all possible display contents acquired by the acquiring unit, and taking the display monomers as to-be-monitored display monomers to be monitored; the display control unit is used for generating a driving signal for driving all the display monomers to be monitored to display simultaneously, or generating a driving signal for driving part of the display monomers to be monitored to display according to the position of the display monomers to be monitored in the display area of the elevator display device or the frequency of being driven to display in the using process of the elevator display device; and a display unit for displaying the display after receiving the driving signal from the display control unit. The invention can simply, conveniently, quickly and accurately realize the detection of the performance of the display.

Description

Elevator display device monitoring system
Technical Field
The invention relates to the field of elevators, in particular to an elevator display device monitoring system for monitoring and evaluating the display performance of an elevator display device.
Background
Displays for providing passengers with information about the direction of travel of the elevator, floor information, etc. are usually provided on landings and/or in the elevator car, such as display means in the car for providing passengers with the direction of travel of the car and the current floor, call out means on the landing for providing passengers with call registration and displaying elevator travel information, display means on the landing for providing passengers with group control dispatch results and/or elevator travel information, etc. Such a display is generally composed of display cells arranged in a matrix, and the display cells may be LED elements, for example. When the service life of such a display exceeds a certain limit, problems may occur in performance, including complete failure of display (i.e., complete failure of display, failure to light up), partial loss of display content, degradation of display performance (e.g., luminance degradation, color anomaly, smear, distortion, etc.). Therefore, in order to ensure that the quality of the information provided to the passengers is not affected by the performance problems of the display device, it is necessary for the elevator maintenance personnel and the property manager to monitor the display units constituting the elevator display.
Although monitoring of the display elements constituting the elevator display can be achieved by regular maintenance of the elevator or feedback of passengers, such monitoring means are based on manual means, which have the following drawbacks:
a) The luminance drop of the display unit cannot be found timely, and the luminance detection of all the display units is difficult to complete in a short time by regular maintenance;
b) The criteria for the decrease in luminance of the display unit are also difficult to be unified, which may lead to improper timing for replacement of the display unit (typically, replacement of the display as a whole).
In order to overcome the drawbacks of the manual detection method, chinese patent No. CN107352341B proposes that firstly, a display screen of a display is photographed by a camera, then, based on image data of the display screen, luminance values of the display are measured according to units of blocks divided by each lighting mode of the display, and finally, luminance detection of the display is achieved by comparing the measured luminance values with a luminance reference value, wherein the lighting mode is a block formed by all display monomers (LED elements) that need to be lit for the display to display a certain content to be displayed. Although the scheme overcomes the defects of the manual detection, the scheme has the following defects:
1) Since a series of luminance degradation detection including image capturing, luminance value measurement, luminance value comparison, and based on the comparison result needs to be performed for each of the light emission modes, when the number of light emission modes of the display is large (for example, for a display showing the running direction and the current floor in the car, the number of light emission modes is usually 2 times the number of elevator landing floors), the total number of actions to be performed to complete the luminance degradation detection of the display will be very large;
2) Since the luminance reference value used for the luminance value comparison corresponds to the light-emitting mode one by one, the luminance reference value corresponding to each light-emitting mode needs to be stored, and when the number of light-emitting modes of the display is large, the number of the luminance reference values needed to be stored is correspondingly large;
3) Because the measurement of the luminance value is performed by taking the block as a unit, the luminance value is usually obtained by calculating the multi-point luminance in the area of each block and then taking the average value, when the luminance value of only a very small number of display monomers in the block is far lower than the luminance value of other display monomers (such as that a certain display monomer fails and cannot be lightened), the luminance value of the whole block is still relatively higher, and the display monomers with the luminance value far lower than the luminance values of other display monomers are "submerged" and cannot be detected;
4) Because each lighting mode is photographed to obtain corresponding image data, and meanwhile, no intervention is performed on the display of the elevator display, the display can be detected after each running state corresponding to each lighting mode of the display is traversed in the elevator running process, and therefore, when the elevator cannot go through a certain running state in a short time (for example, the elevator does not stop at a certain floor in a relatively long time due to reasons, for example, the status of a certain floor in a building is adjusted, the graduation shift in the middle school teaching building is put false in advance, and the like), the brightness detection of the display cannot be completed.
Therefore, how to simply, conveniently and rapidly realize accurate monitoring of display performance (complete failure, incapability of lighting, partial display monomer brightness reduction, and the like) becomes a technical problem to be solved.
Disclosure of Invention
The invention aims to solve the technical problem of providing a monitoring system of an elevator display device, which can solve the problems of more actions to be executed and parameters to be stored and missed detection when the performance of the display device is detected in the prior art.
In order to solve the above technical problems, the present invention provides an elevator display device monitoring system, where the elevator display device is composed of a plurality of display units, the monitoring system includes:
an acquisition unit for acquiring all possible display contents of the elevator display device;
the to-be-monitored monomer determining unit is used for determining all display monomers which are driven to be displayed at least once in the using process of the elevator display device according to all possible display contents acquired by the acquiring unit, and taking the display monomers as to-be-monitored display monomers to be monitored;
the display control unit is used for generating a driving signal for driving all the display monomers to be monitored to display simultaneously, or generating a driving signal for driving part of the display monomers to be monitored to display according to the position of the display monomers to be monitored in the display area of the elevator display device or the frequency of being driven to display in the using process of the elevator display device;
And a display unit for displaying the display after receiving the driving signal from the display control unit.
Further, the monomer to be monitored determining unit further includes:
a display content determining module that determines a set of all possible display contents from all the possible display contents acquired by the acquiring unit and outputs it as a specific display content;
and the monomer to be monitored determining module is used for determining all the monomer to be monitored according to the specific display content output by the display content determining module.
Further, the display content determining module superimposes all possible display contents according to the positions of all the possible display contents on the elevator display device, and the superimposed graph is used as the specific display content, wherein the positions of the possible display contents on the elevator display device refer to the relative positions of the possible display contents relative to the display area of the elevator display device.
Further, the display content determining module projects all possible display contents onto a plane where a display area of the elevator display device is located according to positions of all possible display contents on the elevator display device, and the obtained projection result is taken as the specific display content, wherein the positions of the possible display contents on the elevator display device refer to relative positions of the possible display contents relative to the display area of the elevator display device.
Further, the display content determination module determines the position of the possible display content on the elevator display device according to the following steps:
step S1, selecting a point on a display area of the elevator display device as a reference point for positioning the elevator display device;
step S2, selecting any two points on the possible display content as specific points of the possible display content;
and step S3, taking the coordinates of the specific point relative to the reference point as the display position of the possible display content.
Further, the display content determination module determines the position of the possible display content on the elevator display device according to the following steps:
step S1, selecting a point on a display area of the elevator display device as a reference point for positioning the elevator display device;
step S2, selecting any point on the possible display content as a specific point of the possible display content;
and step S3, taking polar coordinates obtained by combining the distance of the specific point relative to the reference point and the angle of the possible display content relative to the elevator display device as the display position of the possible display content.
Further, when the superimposition of the possible display contents is performed, the relative positions of the post-superimposed possible display contents and the pre-existing possible display contents and the difference between the post-possible display contents and the coordinates of the pre-possible display contents with respect to the reference point coincide.
Further, when the projection of the possible display contents is performed, the relative positions of the back projected possible display contents and the previously existing possible display contents and the difference between the coordinates of the back possible display contents and the previously possible display contents with respect to the reference point are consistent.
Further, the step of determining the monomer to be monitored and displaying by the monomer to be monitored determining unit is as follows:
step S1, determining display monomers which participate in display when the elevator display device displays each possible display content;
and S2, obtaining a union set of all display monomers participating in display, and obtaining a set of all display monomers which need to be driven for displaying all possible display contents, wherein all the display monomers in the set are the display monomers to be monitored.
Further, the frequency is obtained according to historical data statistics or is determined by the number of possible display contents corresponding to each display unit.
Further, the display control unit divides the to-be-monitored display monomers into groups according to the frequency, generates driving signals for driving all to-be-monitored display monomers in one group to display each time, and drives to-be-monitored display monomers in different groups in batches.
Further, the display control unit drives display of different groups at different periods.
Further, the periods are such that the actual number of uses of the display monomers to be monitored, respectively belonging to different groups, between adjacent two driving displays is approximately equal.
Further, the display control unit divides the display area of the elevator display device into blocks, generates driving signals for driving all the display monomers to be monitored in at least one block to display each time, and drives the display monomers to be monitored in different blocks in batches.
Further, all the display units to be monitored in the non-adjacent blocks are driven by the driving signals each time.
Further, the display control unit divides the display area of the elevator display device into a plurality of squares or a plurality of rings.
Further, the display control unit drives the display of different blocks in different periods.
Further, the periods are such that the actual number of uses of the display cells to be monitored respectively belonging to different blocks between two adjacent driving displays is approximately equal.
Further, the system further comprises:
the detection unit is used for detecting the display monomer to be monitored and outputting a detection value, wherein the detection value is an actual detection result of an index representing the display function of the display monomer to be monitored;
And the evaluation unit is used for evaluating the display monomer to be monitored and/or the elevator display device according to the detection value of each display monomer to be monitored.
Further, the evaluation unit evaluates the single display monomer to be monitored by adopting any one of the following modes:
mode 1, comparing a detection value of a single display monomer to be monitored with a first threshold value, and if the detection value is smaller than the first threshold value, evaluating the single display monomer to be monitored as displaying abnormal functions;
mode 2, calculating the difference between the detected value and the reference value of the single display monomer to be monitored, comparing the difference with a second threshold value, if the difference is smaller than the second threshold value, the single display monomer to be monitored is evaluated to be abnormal in display function;
and 3, calculating the ratio of the difference value between the detection value and the reference value of the single display monomer to be monitored to the reference value, comparing the ratio with a third threshold value, and if the ratio is smaller than the third threshold value, evaluating the single display monomer to be monitored as abnormal display function.
Further, the evaluation unit evaluates the group of to-be-monitored display monomers formed by all to-be-monitored display monomers corresponding to a certain possible display content by adopting any one of the following modes:
In the mode 1, the detection values of the to-be-monitored display monomers forming the to-be-monitored display monomer group are compared with the first threshold value, and if at least one to-be-monitored display monomer with the detection value smaller than the first threshold value exists in the to-be-monitored display monomer group, the to-be-monitored display monomer group is evaluated to be abnormal in display function;
mode 2, calculating the difference value between the detection value and the reference value of each to-be-monitored display monomer constituting the to-be-monitored display monomer group, comparing each difference value with the second threshold value, and if at least one to-be-monitored display monomer with the difference value smaller than the second threshold value exists in the to-be-monitored display monomer group, evaluating the to-be-monitored display monomer group as abnormal display function;
means 3 for comparing the detected values of the respective display monomers to be monitored constituting the display monomer group to be monitored with the first threshold value, and if the number of the display monomers to be monitored whose detected values are smaller than the first threshold value in the display monomer group to be monitored is larger than a fourth threshold value or the ratio of the number of the display monomers to be monitored whose detected values are smaller than the first threshold value to the total number of the display monomers to be monitored constituting the display monomer group to be monitored is larger than a fifth threshold value, evaluating the display monomer group to be abnormal;
Mode 4, calculating the difference value between the detection value and the reference value of each to-be-monitored display monomer constituting the to-be-monitored display monomer group, comparing each difference value with the second threshold value, and if the number of to-be-monitored display monomers of which the difference value is smaller than the second threshold value in the to-be-monitored display monomer group is larger than a sixth threshold value or the ratio of the number of to-be-monitored display monomers of which the difference value is smaller than the second threshold value to the total number of to-be-monitored display monomers constituting the to-be-monitored display monomer group is larger than a seventh threshold value, evaluating the to-be-monitored display monomer group as abnormal display function;
mode 5, calculating each difference value of two adjacent display monomers to be monitored in the display monomer group to be monitored, comparing each difference value with an eighth threshold value, and if the number of difference values exceeding the eighth threshold value is greater than the ninth threshold value, evaluating the display monomer group to be monitored as abnormal display function;
and 6, calculating the difference value between the maximum detection value and the minimum detection value of each to-be-monitored display monomer constituting the to-be-monitored display monomer group, and if the difference value is larger than a tenth threshold value, evaluating the to-be-monitored display monomer group as abnormal display function.
Further, the evaluation unit evaluates the elevator display device by any one of the following means:
mode 1, comparing the detection value of each display unit to be monitored constituting the elevator display device with the first threshold value, and if at least one display unit to be monitored whose detection value is smaller than the first threshold value exists in the elevator display device, evaluating the elevator display device as displaying abnormal function;
mode 2, calculating the difference value between the detection value and the reference value of each display unit to be monitored, which forms the elevator display device, and comparing each difference value with the second threshold value, if at least one display unit to be monitored, which has the difference value smaller than the second threshold value, exists in the elevator display device, the elevator display device is evaluated to display abnormal functions;
means 3 for comparing the detected value of each of the display units to be monitored included in the elevator display device with the first threshold value, and if the number of display units to be monitored whose detected value is smaller than the first threshold value in the elevator display device is larger than a fourth threshold value or if the ratio of the number of display units to be monitored whose detected value is smaller than the first threshold value to the total number of display units to be monitored constituting the elevator display device is larger than a fifth threshold value, evaluating the elevator display device as displaying a malfunction;
Mode 4, calculating the difference value between the detection value and the reference value of each display monomer to be monitored contained in the elevator display device, comparing each difference value with the second threshold value, and if the number of the display monomers to be monitored, of which the difference value is smaller than the second threshold value, in the elevator display device is larger than a sixth threshold value or the ratio of the number of the display monomers to be monitored, of which the difference value is smaller than the second threshold value, to the total number of the display monomers to be monitored, which form the elevator display device, is larger than a seventh threshold value, evaluating the elevator display device as abnormal display function;
mode 5, calculating each difference value of two adjacent display monomers to be monitored in the elevator display device, comparing each difference value with an eighth threshold value, and if the number of difference values exceeding the eighth threshold value is greater than the ninth threshold value, evaluating the elevator display device to display abnormal functions;
mode 6, calculating the difference value between the maximum detection value and the minimum detection value of each display monomer to be monitored contained in the elevator display device, and if the difference value is greater than a tenth threshold value, evaluating the elevator display device to display abnormal functions;
mode 7, calculating each detection value of all to-be-monitored display monomer groups corresponding to all possible display contents to be displayed by the elevator display device, wherein each to-be-monitored display monomer group consists of all to-be-monitored display monomers corresponding to the corresponding possible display contents, and if at least one to-be-monitored display monomer group has the detection value smaller than an eleventh threshold value, the elevator display device is evaluated to display abnormal functions;
A mode 8, calculating the difference value between each detection value and the reference value of all to-be-monitored display monomer groups corresponding to all possible display contents required to be displayed by the elevator display device, and if at least one difference value is smaller than a twelfth threshold value, evaluating the elevator display device to display abnormal functions;
means 9 for calculating each detection value of all to-be-monitored display monomer groups corresponding to all possible display contents to be displayed by the elevator display device, comparing the detection value of each to-be-monitored display monomer group with the eleventh threshold, and if the number of to-be-monitored display monomer groups whose detection value is smaller than the eleventh threshold is greater than a thirteenth threshold or the ratio of the number of to-be-monitored display monomer groups whose detection value is smaller than the eleventh threshold to the number of all to-be-monitored display monomer groups is greater than a fourteenth threshold, evaluating the elevator display device as having abnormal display function;
in the mode 10, the difference value between each detection value and the reference value of all to-be-monitored display monomer groups corresponding to all possible display contents to be displayed by the elevator display device is calculated, each difference value is compared with the twelfth threshold value, and if the number of to-be-monitored display monomer groups with the difference value smaller than the twelfth threshold value is greater than the fifteenth threshold value or the ratio of the number of to-be-monitored display monomer groups with the difference value smaller than the twelfth threshold value to the total number of all to-be-monitored display monomer groups is greater than the sixteenth threshold value, the elevator display device is evaluated as displaying abnormal functions.
Further, in modes 7 to 10, an average value is calculated using the detection values of the display monomers to be monitored constituting each display monomer group to be monitored, and the average value is used as the detection value of each display monomer group to be monitored.
Further, the step of the evaluation unit evaluating the elevator display device is as follows:
step S1, calculating the difference value between the detection value and the reference value of each display monomer to be monitored and/or the ratio of each difference value to the reference value;
step S2, dividing intervals of all the differences and/or all the ratios and setting corresponding weight coefficients for each interval;
step S3, determining the number of the monomers to be monitored, which correspond to each interval, according to the difference value and/or the ratio of each interval;
step S4, calculating the performance value of the elevator display device according to the weight coefficient of each interval and the corresponding number of the display monomers to be monitored;
and S5, judging whether the performance value exceeds a seventeenth threshold value, if so, evaluating the elevator display device to display abnormal functions, and otherwise, evaluating the elevator display device to display normal functions.
Further, the reference value is an initial value of a display function of the display unit to be monitored constituting the elevator display device when the display unit leaves the factory.
Further, the unit to be monitored determines all the display monomers which are not lightened in the elevator display device and selects at least one display monomer which is not lightened to be sent to the display control unit; the display control unit also generates a driving signal for driving the display monomer which is not lightened and is selected by the monomer to be monitored determining unit.
Further, the display control unit drives the unlit display monomers in different driving modes, so that different unlit display monomers show different display effects, and each display effect corresponds to a different evaluation grade.
Further, when the display effect of a certain or some display monomers to be monitored is the same as or similar to the display effect of a certain display monomer which is not lightened, the monitoring personnel evaluate the display function grade of the display monomers to be monitored as the evaluation grade corresponding to the display effect of the display monomers which are not lightened.
Further, the unit to be monitored determines all the display monomers which are not lightened in the elevator display device and selects at least one display monomer which is not lightened to be sent to the display control unit; the display control unit also generates a driving signal for driving the display monomer which is not lightened and is selected by the monomer to be monitored determining unit.
Further, the detection unit is used for detecting the display monomer which is not lightened and is selected by the monomer to be monitored determination unit and outputting a detection value, wherein the detection value is an actual detection result of an index representing the display function of the display monomer which is not lightened;
and the evaluation unit evaluates the display monomer to be monitored and/or the elevator display device according to the detection value of each display monomer to be monitored and the detection value of the selected display monomer which is not lightened.
Further, the display control unit drives the unlit display monomers in different driving modes, so that different unlit display monomers show different display effects, and each display effect corresponds to a different evaluation grade.
Further, when the display effect of a certain or some display monomers to be monitored is the same as or similar to the display effect of a certain display monomer which is not lightened, the evaluation unit evaluates the display function grade of the display monomers to be monitored as an evaluation grade corresponding to the display effect of the display monomer which is not lightened.
Further, the system further comprises:
An instruction receiving unit for receiving a monitoring activation signal from outside;
the display control unit starts to act after the instruction receiving unit receives the monitoring activating signal.
Further, the monitoring activation signal is generated by a monitoring person using an elevator input device, the display control unit is in communication with the input device, and the monitoring activation signal comprises an ID of the elevator display device.
Further, the input device is a destination layer registration device on the layer station and/or an up-down button on the layer station.
Further, the monitoring activation signal is generated by a mobile terminal, which is directly in communication with the display control unit, the monitoring activation signal comprising the ID of the elevator display device.
Further, the monitoring activation signal is generated by a mobile terminal, the mobile terminal is in communication connection with a remote monitoring center, the remote monitoring center is in communication connection with the display control unit, and the monitoring activation signal comprises the ID of the elevator and the ID of the elevator display device.
Further, the detection unit is an image capturing processing unit, and the image capturing processing unit further includes:
A camera shooting subunit, configured to shoot at least a display area of the elevator display device, so as to obtain an image of display content in the display area;
and the analysis processing subunit is used for analyzing and processing the image shot by the shooting subunit and obtaining a detection value of the display monomer to be monitored according to an analysis processing result.
Further, the display control unit is also used for selecting a detection time for detecting the elevator display device.
Further, when the elevator display device is positioned in the car, the detection time is when no passenger exists in the car; when the elevator display device is positioned on the landing, the detection time is when no passenger is on the landing and/or the elevator is in an idle state.
Further, the display control unit outputs a driving signal and simultaneously sends an image acquisition signal to the image pickup processing unit, and the image pickup subunit receives the image acquisition signal to carry out shooting.
Compared with the prior art, the invention has the beneficial technical effects that:
firstly, the invention can drive and lighten all display monomers which are displayed at least once and correspond to all possible display contents at one time, thus reducing a series of times of actions which are required to be executed respectively for each display content in the performance detection work of the display device, and avoiding prestored reference parameters corresponding to each display content, thereby reducing the storage space of the system;
Secondly, the invention can also carry out batch driving according to the positions of all the display monomers to be monitored in the display area of the elevator display device or the frequency of the driven display in the using process of the elevator display device, thus reducing the workload of each treatment;
thirdly, the invention can simultaneously drive all or part of the display monomers to be monitored and part of the display monomers which are not lightened to display, so that the display monomers which are not lightened before the current monitoring can be utilized to compare with the display monomers to be monitored, thereby ensuring that the monitoring result of the display performance of the display monomers to be monitored is more accurate;
fourth, the invention can monitor and evaluate the display performance of each display monomer to be monitored, thus avoiding the situation that a few display monomers to be monitored cannot be monitored when the whole display unit to be monitored or the whole display device is evaluated.
Drawings
Fig. 1 is a frame diagram of an embodiment of an elevator display device monitoring system of the present invention;
fig. 2 is a frame diagram of a seventh embodiment of the elevator display device monitoring system of the present invention.
Detailed Description
Other advantages and effects of the present invention will become readily apparent to those skilled in the art from the following disclosure, when considered in light of the accompanying drawings, illustrating embodiments of the present invention by way of specific embodiments. In the following description, specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced or carried out in other, different embodiments, and details of the present description may be set forth in various different manners and applications, as those skilled in the art may readily devise various arrangements and substitutions without departing from the spirit of the present invention.
Example 1
In the elevator display device monitoring system of the present embodiment, the elevator display device is generally composed of a plurality of light emitting units arranged in a matrix, each of the light emitting units is a display unit, and the light emitting units are generally LED elements. As shown in fig. 1, the monitoring system includes:
an acquisition unit for acquiring all possible display contents of the elevator display device;
the to-be-monitored monomer determining unit is used for determining all display monomers which are driven to be displayed at least once in the using process of the elevator display device according to all possible display contents acquired by the acquiring unit, and taking the display monomers as to-be-monitored display monomers to be monitored;
the display control unit is used for generating a driving signal for driving all the display monomers to be monitored to be displayed simultaneously;
and a display unit for displaying the display after receiving the driving signal from the display control unit.
In this embodiment, the display control unit drives all the display monomers to be monitored simultaneously, and all the display monomers to be monitored are lightened simultaneously to display, and the monitor monitors the display performance of the display monomers manually.
The step of determining the monomer to be monitored and displaying by the monomer to be monitored determining unit is as follows:
Step S1, determining display monomers which participate in display when the elevator display device displays each possible display content;
and S2, obtaining a union set of all display monomers participating in display, and obtaining a set of all display monomers which need to be driven for displaying all possible display contents, wherein all the display monomers in the set are the display monomers to be monitored.
The display device monitoring system of the present invention will be described below by taking a 10-floor elevator installed in a residential building as an example. The elevator is provided with displays for displaying the current floor and running direction of the elevator car to passengers in a landing hall and in the car, and the displays are composed of LED elements (display units) which are light-emitting units arranged in a matrix. The display device monitoring system of the invention is simultaneously applicable to the display of the landing hall and the display in the car, the following description will be given by taking a display in the car as an example.
When the elevator travels from floor 1 up through floor 5, the display is required to show the display of the up-going identification arrow and floor number "5". Since the display displays the up-link identification arrow and the floor number "5" by lighting the LED elements arranged in a dot matrix (i.e., matrix), in order to correctly display the up-link identification arrow and the floor number "5", it is necessary to determine the LED element group to be lit (the LED element group corresponds to the display content of the display one by one), then generate corresponding driving signals according to the LED element group to the driving circuits of the respective LED elements in the LED element group, and drive all the LED elements in the LED element group by the driving circuits, thereby finally realizing lighting of the LED elements.
For the 10-floor of the present embodiment, the display has 20 possible display contents, each of which corresponds to one display unit group (all display units participating in displaying one possible display content may also be LED groups), that is, there are 20 corresponding LED element groups. After obtaining 20 LED element groups, all display monomers in the 20 LED element groups are combined together, and a union set of the display monomers is obtained, so that a set of display monomers which are required to be driven by a display to display all possible display contents (20 possible display contents are displayed at one time instead of being displayed simultaneously), wherein the display monomers in the set are all the LED elements which are lighted at least once, and all the display monomers in the set are the display monomers to be monitored.
The display device monitoring system of the embodiment monitors by lighting all the LED elements in the set at one time, so that the number of actions and the number of treatments required to be performed for monitoring each LED element are greatly reduced.
Example two
The first difference from the embodiment is that the manner in which the monomer to be monitored is determined by the monomer to be monitored determining unit in the present embodiment is different.
Specifically, the monomer to be monitored determining unit of the present embodiment further includes:
A display content determining module that determines a set of all possible display contents from all the possible display contents acquired by the acquiring unit and outputs it as a specific display content;
and the monomer to be monitored determining module is used for determining all the monomer to be monitored according to the specific display content output by the display content determining module.
The display content determining module determines the specific display content in the following two ways:
in the mode 1, a display content determining module superimposes all possible display contents according to the positions of all the possible display contents on the elevator display device, and the superimposed graph is used as the specific display content;
in mode 2, the display content determining module projects all possible display contents onto a plane on which a display area of the elevator display device is located according to positions of all possible display contents on the elevator display device, and uses the obtained projection result as the specific display content.
The position of the possible display contents on the elevator display device refers to the relative position of the possible display contents with respect to the display area of the elevator display device. The area of the possible display contents is usually smaller than the area of the display device, and in order to ensure that the result after superposition or projection of all the possible display contents is determined, the positions of all the possible display contents relative to each other are fixed when the possible display contents are superimposed or projected, so that the display contents determination module determines the positions of the possible display contents on the elevator display device according to the following steps:
Step S1, selecting a point on a display area of the elevator display device as a reference point for positioning the elevator display device;
step S2, selecting any two points on the possible display content as specific points of the possible display content;
and step S3, taking the coordinates of the specific point relative to the reference point as the display position of the possible display content.
Of course, the display content determination module can also determine the position of the possible display content on the elevator display device as follows:
step S1, selecting a point on a display area of the elevator display device as a reference point for positioning the elevator display device;
step S2, selecting any point on the possible display content as a specific point of the possible display content;
and step S3, taking polar coordinates obtained by combining the distance of the specific point relative to the reference point and the angle of the possible display content relative to the elevator display device as the display position of the possible display content.
When the overlapping or projection of the possible display contents is performed, the relative positions of the post-overlapped possible display contents or the post-projected possible display contents and the pre-existing possible display contents and the difference between the coordinates of the post-possible display contents and the pre-possible display contents with respect to the reference point are consistent.
In this embodiment, the to-be-monitored monomer determining unit processes all possible display contents to obtain a set of all possible display contents, and determines all to-be-monitored display monomers to be lightened when the set is displayed according to the set of all possible display contents.
Example III
The present embodiment is similar to the first embodiment except that the present embodiment monitors all the display monomers to be monitored in batch driving. Specifically, the elevator display device monitoring system of the present embodiment includes:
an acquisition unit for acquiring all possible display contents of the elevator display device;
the to-be-monitored monomer determining unit is used for determining all display monomers which are driven to be displayed at least once in the using process of the elevator display device according to all possible display contents acquired by the acquiring unit, and taking the display monomers as to-be-monitored display monomers to be monitored;
the display control unit generates a driving signal for displaying the display unit to be monitored according to the position of the display unit to be monitored in the display area of the elevator display device;
and a display unit for displaying the display after receiving the driving signal from the display control unit.
The display control unit divides the display area of the elevator display device into blocks, namely divides the positions of the display monomers, generates driving signals for driving all the display monomers to be monitored in at least one block to display each time, and drives the display monomers to be monitored in different blocks in batches.
Preferably, all the display cells to be monitored in non-adjacent blocks are driven by the driving signal at a time, so that the driven blocks are conveniently compared with the display cells in non-driven blocks.
The display control unit divides a display area of the elevator display device into a plurality of squares (lattice areas) or a plurality of rings.
More preferably, the display control unit drives the display for different blocks in different periods. The periods are such that the actual number of uses of the display cells to be monitored respectively belonging to different blocks between two adjacent driving displays is approximately equal.
The embodiment divides according to the positions of the display monomers and drives the monitoring in blocks according to the needs, so that monitoring personnel can conveniently conduct visual monitoring, and the workload of each monitoring is reduced.
Example IV
The difference is that the batch driving is performed on all the display monomers to be monitored in this embodiment according to the difference.
Specifically, the elevator display device monitoring system of the present embodiment includes:
an acquisition unit for acquiring all possible display contents of the elevator display device;
the to-be-monitored monomer determining unit is used for determining all display monomers which are driven to be displayed at least once in the using process of the elevator display device according to all possible display contents acquired by the acquiring unit, and taking the display monomers as to-be-monitored display monomers to be monitored;
the display control unit generates a driving signal for displaying the to-be-monitored display monomer according to the frequency of the to-be-monitored display monomer which is driven to display in the using process of the elevator display device;
and a display unit for displaying the display after receiving the driving signal from the display control unit.
The frequency is obtained according to historical data statistics or is determined by the number of possible display contents corresponding to each display unit.
The display control unit divides the to-be-monitored display monomers into groups according to the frequency, generates driving signals for driving all to-be-monitored display monomers in one group to display each time, and drives to-be-monitored display monomers in different groups in batches.
Preferably, the display control unit drives display of different groups at different periods. The periods are such that the actual number of uses of the display cells to be monitored, respectively belonging to different groups, between adjacent two drive displays is approximately equal.
Example five
In order to facilitate visual monitoring by a monitoring person on the basis of the first, third and fourth embodiments, the present embodiment drives a display unit to be monitored, and at the same time drives a display unit that has never been lighted in the display device.
Specifically, the unit to be monitored determines all the display monomers which are not lightened in the elevator display device and selects at least one display monomer which is not lightened to be sent to the display control unit; the display control unit also generates a driving signal for driving the display monomer which is not lightened and is selected by the monomer to be monitored determining unit.
The display control unit drives the unlit display monomers in different driving modes, so that different unlit display monomers show different display effects, and each display effect corresponds to a different evaluation grade.
When the display effect of a certain or some display monomers to be monitored is the same as or similar to the display effect of a certain display monomer which is not lightened, the monitoring personnel evaluate the display function grade of the display monomers to be monitored as the evaluation grade corresponding to the display effect of the display monomers which are not lightened.
It should be noted that this embodiment reasonably assumes that all display cells (LED elements) constituting the elevator display are identical in initial display performance, and that their actual display performance remains unchanged in the case of subsequent unlit. In this embodiment, all or part of the display monomer to be monitored and part of the display monomer which is not lightened are simultaneously driven to display, so that the display monomer which is not lightened before the current monitoring can be utilized to compare with the display monomer to be monitored, and the monitoring personnel can conveniently and better visually observe.
Example six
On the basis of the foregoing embodiment, the monitoring system of this embodiment further includes:
an instruction receiving unit for receiving a monitoring activation signal from outside;
the display control unit starts to act after the instruction receiving unit receives the monitoring activating signal.
Specifically, the monitoring activation signal may be implemented in the following manner:
in mode 1, the monitoring activation signal is generated by a monitoring person using an elevator input device, the display control unit is communicatively connected to the input device, and the monitoring activation signal includes an ID of the elevator display device. The input device is a destination layer registering device (such as a digital key) on the layer station and/or an up-down button (operated by a specific operation combination, frequency and the like) on the layer station.
In mode 2, the monitoring activation signal is generated by a mobile terminal, and the mobile terminal is directly connected with the display control unit in a communication manner, for example, a bluetooth module, a WiFi module, etc., and the monitoring activation signal includes an ID of the elevator display device. The monitoring personnel inputs a specific monitoring activating signal at the mobile terminal and transmits the specific monitoring activating signal to the display control unit, and the display control unit generates a required driving signal after receiving the monitoring activating signal.
In mode 3, the monitoring activation signal is generated by a mobile terminal, the mobile terminal is in communication connection with a remote monitoring center, the remote monitoring center is in communication connection with the display control unit, and the monitoring activation signal comprises an ID of an elevator and an ID of an elevator display device. The remote monitoring center transmits a monitoring activation signal to the display control unit according to the elevator ID and the ID of the display device, and the display control unit generates a required driving signal after receiving the monitoring activation signal.
In order to avoid confusion of passengers, the display control unit can inform the passengers that the display device is in the inspection mode in a specific mode after receiving the monitoring activation signal, for example, before displaying the display content corresponding to the monitoring activation signal, the display control unit inputs the display content containing the meaning of 'the display is about to enter the inspection mode' on the display device, and then displays the display content corresponding to the driving signal generated by the display control unit; or display the display content corresponding to the driving signal generated by the display control unit in a mode which is obviously different from the conventional information display mode (such as flashing display, special color display and the like, or flashing or scrolling the whole outline curve of the display at the outermost periphery of the display, and the like).
And after the display device displays the display content corresponding to the driving signal generated by the display control unit for a certain time, returning to the normal display mode, namely exiting the checking display mode. Alternatively, the monitoring personnel give instructions to the elevator control unit in a suitable manner that the inspection is completed, exiting the inspection mode.
Example seven
The present example is similar to the first, third and fourth examples except that the present example evaluates the display performance of the display unit by means of non-manual visual inspection.
Specifically, as shown in fig. 2, the monitoring system includes:
an acquisition unit for acquiring all possible display contents of the elevator display device;
the to-be-monitored monomer determining unit is used for determining all display monomers which are driven to be displayed at least once in the using process of the elevator display device according to all possible display contents acquired by the acquiring unit, and taking the display monomers as to-be-monitored display monomers to be monitored;
the display control unit is used for generating a driving signal for driving all the display monomers to be monitored to display simultaneously, or generating a driving signal for driving part of the display monomers to be monitored to display according to the position of the display monomers to be monitored in the display area of the elevator display device or the frequency of being driven to display in the using process of the elevator display device;
a display unit that displays the received drive signal from the display control unit;
the detection unit is used for detecting the display monomer to be monitored and outputting a detection value, wherein the detection value is an actual detection result of an index representing the display function of the display monomer to be monitored;
and the evaluation unit is used for evaluating the display monomer to be monitored and/or the elevator display device according to the detection value of each display monomer to be monitored.
The following describes an evaluation method of the evaluation unit according to an evaluation object (a single display unit to be lit, a display unit group corresponding to a certain possible display content, and the entire display device) of the evaluation unit.
The evaluation unit evaluates the single display monomer to be monitored by adopting any one of the following modes:
mode 1, comparing a detection value of a single display monomer to be monitored with a first threshold value, and if the detection value is smaller than the first threshold value, evaluating the single display monomer to be monitored as displaying abnormal functions;
mode 2, calculating the difference between the detected value and the reference value of the single display monomer to be monitored, comparing the difference with a second threshold value, if the difference is smaller than the second threshold value, the single display monomer to be monitored is evaluated to be abnormal in display function;
and 3, calculating the ratio of the difference value between the detection value and the reference value of the single display monomer to be monitored to the reference value, comparing the ratio with a third threshold value, and if the ratio is smaller than the third threshold value, evaluating the single display monomer to be monitored as abnormal display function.
The evaluation unit evaluates the to-be-monitored display monomer group formed by all to-be-monitored display monomers corresponding to a certain possible display content by adopting any one of the following modes:
In the mode 1, the detection values of the to-be-monitored display monomers forming the to-be-monitored display monomer group are compared with the first threshold value, and if at least one to-be-monitored display monomer with the detection value smaller than the first threshold value exists in the to-be-monitored display monomer group, the to-be-monitored display monomer group is evaluated to be abnormal in display function;
mode 2, calculating the difference value between the detection value and the reference value of each to-be-monitored display monomer constituting the to-be-monitored display monomer group, comparing each difference value with the second threshold value, and if at least one to-be-monitored display monomer with the difference value smaller than the second threshold value exists in the to-be-monitored display monomer group, evaluating the to-be-monitored display monomer group as abnormal display function;
means 3 for comparing the detected values of the respective display monomers to be monitored constituting the display monomer group to be monitored with the first threshold value, and if the number of the display monomers to be monitored whose detected values are smaller than the first threshold value in the display monomer group to be monitored is larger than a fourth threshold value or the ratio of the number of the display monomers to be monitored whose detected values are smaller than the first threshold value to the total number of the display monomers to be monitored constituting the display monomer group to be monitored is larger than a fifth threshold value, evaluating the display monomer group to be abnormal;
Mode 4, calculating the difference value between the detection value and the reference value of each to-be-monitored display monomer constituting the to-be-monitored display monomer group, comparing each difference value with the second threshold value, and if the number of to-be-monitored display monomers of which the difference value is smaller than the second threshold value in the to-be-monitored display monomer group is larger than a sixth threshold value or the ratio of the number of to-be-monitored display monomers of which the difference value is smaller than the second threshold value to the total number of to-be-monitored display monomers constituting the to-be-monitored display monomer group is larger than a seventh threshold value, evaluating the to-be-monitored display monomer group as abnormal display function;
mode 5, calculating each difference value of two adjacent display monomers to be monitored in the display monomer group to be monitored, comparing each difference value with an eighth threshold value, and if the number of difference values exceeding the eighth threshold value is greater than the ninth threshold value, evaluating the display monomer group to be monitored as abnormal display function;
and 6, calculating the difference value between the maximum detection value and the minimum detection value of each to-be-monitored display monomer constituting the to-be-monitored display monomer group, and if the difference value is larger than a tenth threshold value, evaluating the to-be-monitored display monomer group as abnormal display function.
The evaluation means evaluates the elevator display device by any one of the following means:
mode 1, comparing the detection value of each display unit to be monitored constituting the elevator display device with the first threshold value, and if at least one display unit to be monitored whose detection value is smaller than the first threshold value exists in the elevator display device, evaluating the elevator display device as displaying abnormal function;
mode 2, calculating the difference value between the detection value and the reference value of each display unit to be monitored, which forms the elevator display device, and comparing each difference value with the second threshold value, if at least one display unit to be monitored, which has the difference value smaller than the second threshold value, exists in the elevator display device, the elevator display device is evaluated to display abnormal functions;
means 3 for comparing the detected value of each of the display units to be monitored included in the elevator display device with the first threshold value, and if the number of display units to be monitored whose detected value is smaller than the first threshold value in the elevator display device is larger than a fourth threshold value or if the ratio of the number of display units to be monitored whose detected value is smaller than the first threshold value to the total number of display units to be monitored constituting the elevator display device is larger than a fifth threshold value, evaluating the elevator display device as displaying a malfunction;
Mode 4, calculating the difference value between the detection value and the reference value of each display monomer to be monitored contained in the elevator display device, comparing each difference value with the second threshold value, and if the number of the display monomers to be monitored, of which the difference value is smaller than the second threshold value, in the elevator display device is larger than a sixth threshold value or the ratio of the number of the display monomers to be monitored, of which the difference value is smaller than the second threshold value, to the total number of the display monomers to be monitored, which form the elevator display device, is larger than a seventh threshold value, evaluating the elevator display device as abnormal display function;
mode 5, calculating each difference value of two adjacent display monomers to be monitored in the elevator display device, comparing each difference value with an eighth threshold value, and if the number of difference values exceeding the eighth threshold value is greater than the ninth threshold value, evaluating the elevator display device to display abnormal functions;
mode 6, calculating the difference value between the maximum detection value and the minimum detection value of each display monomer to be monitored contained in the elevator display device, and if the difference value is greater than a tenth threshold value, evaluating the elevator display device to display abnormal functions;
mode 7, calculating each detection value of all to-be-monitored display monomer groups corresponding to all possible display contents to be displayed by the elevator display device, wherein each to-be-monitored display monomer group consists of all to-be-monitored display monomers corresponding to the corresponding possible display contents, and if at least one to-be-monitored display monomer group has the detection value smaller than an eleventh threshold value, the elevator display device is evaluated to display abnormal functions;
A mode 8, calculating the difference value between each detection value and the reference value of all to-be-monitored display monomer groups corresponding to all possible display contents required to be displayed by the elevator display device, and if at least one difference value is smaller than a twelfth threshold value, evaluating the elevator display device to display abnormal functions;
means 9 for calculating each detection value of all to-be-monitored display monomer groups corresponding to all possible display contents to be displayed by the elevator display device, comparing the detection value of each to-be-monitored display monomer group with the eleventh threshold, and if the number of to-be-monitored display monomer groups whose detection value is smaller than the eleventh threshold is greater than a thirteenth threshold or the ratio of the number of to-be-monitored display monomer groups whose detection value is smaller than the eleventh threshold to the number of all to-be-monitored display monomer groups is greater than a fourteenth threshold, evaluating the elevator display device as having abnormal display function;
in the mode 10, the difference value between each detection value and the reference value of all to-be-monitored display monomer groups corresponding to all possible display contents to be displayed by the elevator display device is calculated, each difference value is compared with the twelfth threshold value, and if the number of to-be-monitored display monomer groups with the difference value smaller than the twelfth threshold value is greater than the fifteenth threshold value or the ratio of the number of to-be-monitored display monomer groups with the difference value smaller than the twelfth threshold value to the total number of all to-be-monitored display monomer groups is greater than the sixteenth threshold value, the elevator display device is evaluated as displaying abnormal functions.
In any of modes 7 to 10, an average value is calculated using the detection values of the display monomers to be monitored constituting each display monomer group to be monitored, and the average value is used as the detection value of each display monomer group to be monitored.
The reference value is an initial value of a display function of a display unit to be monitored forming the elevator display device when the display unit leaves a factory.
The threshold value, the reference value and the like in the embodiment can be set according to the evaluation requirement, different threshold values can be set to the same value, different values can be set, and the method can be suitable for the display unit to be monitored, can also be suitable for the display unit group to be monitored, so that the storage space can be optimized, and the storage space required by evaluating the display performance of the display device and the quantity of parameter values required to be determined in advance can be reduced.
Example eight
Similar to embodiment seven, the difference is in the manner in which the evaluation unit of the present embodiment performs the display performance evaluation.
Specifically, the step of the evaluation unit evaluating the elevator display device is as follows:
step S1, calculating the difference value between the detection value and the reference value of each display monomer to be monitored and/or the ratio of each difference value to the reference value;
step S2, dividing intervals of all the differences and/or all the ratios and setting corresponding weight coefficients for each interval;
Step S3, determining the number of the monomers to be monitored, which correspond to each interval, according to the difference value and/or the ratio of each interval;
step S4, calculating the performance value of the elevator display device according to the weight coefficient of each interval and the corresponding number of the display monomers to be monitored;
and S5, judging whether the performance value exceeds a seventeenth threshold value, if so, evaluating the elevator display device to display abnormal functions, and otherwise, evaluating the elevator display device to display normal functions.
The standard value is an initial value of a display function of the elevator display device when the to-be-monitored display unit leaves the factory.
In step S2, the larger the difference and/or ratio is, the larger the weight coefficient of its corresponding section is.
The embodiment can make the evaluation result of the display unit and/or the display device more reasonable and accurate by adopting the weighted summation idea.
Example nine
On the basis of the seventh embodiment and the eighth embodiment, in this embodiment, besides driving the display unit to be monitored, the display unit which is never lighted in the display device is also driven, so that the accuracy of the evaluation result of the display performance is improved.
Specifically, the unit to be monitored determines all the display monomers which are not lightened in the elevator display device and selects at least one display monomer which is not lightened to be sent to the display control unit; the display control unit further generates a driving signal for driving the non-lighted display monomer selected by the monomer to be monitored determining unit, and the detecting unit further detects the non-lighted display monomer selected by the monomer to be monitored determining unit and outputs a detection value, wherein the detection value is an actual detection result of an index representing a display function of the non-lighted display monomer; and the evaluation unit evaluates the display monomer to be monitored and/or the elevator display device according to the detection value of each display monomer to be monitored and the detection value of the selected display monomer which is not lightened.
Preferably, the display control unit drives the non-lighted display monomer in different driving modes, so that different non-lighted display monomers show different display effects, and each display effect corresponds to a different evaluation grade.
When the display effect of a certain or some display monomers to be monitored is the same as or similar to the display effect of a certain display monomer which is not lightened, the evaluation unit evaluates the display function grade of the display monomers to be monitored into an evaluation grade corresponding to the display effect of the display monomer which is not lightened.
Examples ten
The present embodiment further defines the detection unit on the basis of the seventh embodiment, the eighth embodiment, and the ninth embodiment.
Specifically, the detection unit is an image capturing processing unit, and the image capturing processing unit further includes:
a camera shooting subunit, configured to shoot at least a display area of the elevator display device, so as to obtain an image of display content in the display area;
and the analysis processing subunit is used for analyzing and processing the image shot by the shooting subunit and obtaining a detection value of the display monomer to be monitored according to an analysis processing result.
The display control unit is also used for selecting the detection time for detecting the elevator display device.
When the elevator display device is positioned in the car, the detection time is when no passenger exists in the car; when the elevator display device is positioned on the landing, the detection time is when no passenger is on the landing and/or the elevator is in an idle state.
The display control unit outputs a driving signal and simultaneously sends an image acquisition signal to the image pickup processing unit, and the image pickup subunit receives the image acquisition signal to carry out shooting.
The present invention has been described in detail by way of specific examples, which are only preferred examples of the present invention, and the present invention is not limited to the above embodiments. Equivalent substitutions and modifications will occur to those skilled in the art without departing from the principles of the present invention, and these should be considered to be within the scope of the present invention as defined by the appended claims.

Claims (43)

1. An elevator display device monitoring system, the elevator display device being composed of a plurality of display cells, the monitoring system comprising:
an acquisition unit for acquiring all possible display contents of the elevator display device;
The to-be-monitored monomer determining unit is used for determining all display monomers which are driven to be displayed at least once in the using process of the elevator display device according to all possible display contents acquired by the acquiring unit, and taking the display monomers as to-be-monitored display monomers to be monitored;
the display control unit is used for generating a driving signal for driving all the display monomers to be monitored to display simultaneously, or generating a driving signal for driving part of the display monomers to be monitored to display according to the position of the display monomers to be monitored in the display area of the elevator display device or the frequency of being driven to display in the using process of the elevator display device;
and a display unit for displaying the display after receiving the driving signal from the display control unit.
2. The elevator display device monitoring system of claim 1, wherein the unit to be monitored monomer determination unit further comprises:
a display content determining module that determines a set of all possible display contents from all the possible display contents acquired by the acquiring unit and outputs it as a specific display content;
and the monomer to be monitored determining module is used for determining all the monomer to be monitored according to the specific display content output by the display content determining module.
3. The elevator display device monitoring system of claim 2, wherein the display content determination module superimposes all possible display content together based on a position of the possible display content on the elevator display device, the position of the possible display content on the elevator display device being a relative position of the possible display content with respect to a display area of the elevator display device, and superimposes the obtained graphic as the specific display content.
4. The elevator display device monitoring system according to claim 2, wherein the display content determination module projects all possible display contents onto a plane on which a display area of the elevator display device is located, based on a position of all possible display contents on the elevator display device, the position of the possible display contents on the elevator display device being a relative position of the possible display contents with respect to the display area of the elevator display device, with the obtained projection result being the specific display content.
5. The elevator display device monitoring system of claim 3, wherein the display content determination module determines the location of the possible display content on the elevator display device as follows:
Step S1, selecting a point on a display area of the elevator display device as a reference point for positioning the elevator display device;
step S2, selecting any two points on the possible display content as specific points of the possible display content;
and step S3, taking the coordinates of the specific point relative to the reference point as the display position of the possible display content.
6. The elevator display device monitoring system of claim 3, wherein the display content determination module determines the location of the possible display content on the elevator display device as follows:
step S1, selecting a point on a display area of the elevator display device as a reference point for positioning the elevator display device;
step S2, selecting any point on the possible display content as a specific point of the possible display content;
and step S3, taking polar coordinates obtained by combining the distance of the specific point relative to the reference point and the angle of the possible display content relative to the elevator display device as the display position of the possible display content.
7. The elevator display device monitoring system of claim 4, wherein the display content determination module determines the location of the possible display content on the elevator display device as follows:
Step S1, selecting a point on a display area of the elevator display device as a reference point for positioning the elevator display device;
step S2, selecting any two points on the possible display content as specific points of the possible display content;
and step S3, taking the coordinates of the specific point relative to the reference point as the display position of the possible display content.
8. The elevator display device monitoring system of claim 4, wherein the display content determination module determines the location of the possible display content on the elevator display device as follows:
step S1, selecting a point on a display area of the elevator display device as a reference point for positioning the elevator display device;
step S2, selecting any point on the possible display content as a specific point of the possible display content;
and step S3, taking polar coordinates obtained by combining the distance of the specific point relative to the reference point and the angle of the possible display content relative to the elevator display device as the display position of the possible display content.
9. The elevator display device monitoring system according to claim 5 or 6, characterized in that when the superimposition of the possible display contents is performed, the relative position of the post-superimposed possible display contents and the pre-existing possible display contents and the difference between the post-possible display contents and the coordinates of the pre-possible display contents with respect to the reference point coincide.
10. The elevator display device monitoring system according to claim 7 or 8, characterized in that the projection of the possible display content is performed with the relative position of the back projected possible display content and the previously existing possible display content and the difference between the coordinates of the back possible display content and the previously possible display content with respect to the reference point.
11. The elevator display device monitoring system according to claim 1, wherein the step of the to-be-monitored monomer determining unit determining the to-be-monitored display monomer is as follows:
step S1, determining display monomers which participate in display when the elevator display device displays each possible display content;
and S2, obtaining a union set of all display monomers participating in display, and obtaining a set of all display monomers which need to be driven for displaying all possible display contents, wherein all the display monomers in the set are the display monomers to be monitored.
12. The elevator display device monitoring system of claim 1, wherein the frequency is statistically derived from historical data or determined by the number of possible display content for each display cell.
13. The elevator display device monitoring system according to claim 12, wherein the display control unit classifies the display units to be monitored according to the frequency, generates driving signals for driving all the display units to be monitored in one group to display at a time, and drives the display units to be monitored in different groups in batches.
14. The elevator display device monitoring system of claim 13, wherein the display control unit drives display of different groups at different periods.
15. The elevator display device monitoring system of claim 14, wherein the cycles are such that actual usage times of display cells to be monitored, respectively belonging to different groups, between adjacent two drive displays are approximately equal.
16. The elevator display device monitoring system according to claim 1, wherein the display control unit performs block division on a display area of the elevator display device, generates a driving signal for driving all the display units to be monitored in at least one block to display at a time, and drives the display units to be monitored in different blocks in batches.
17. The elevator display device monitoring system of claim 16, wherein each drive signal drives all of the display cells to be monitored in non-adjacent blocks.
18. The elevator display device monitoring system of claim 16, wherein the display control unit divides a display area of the elevator display device into a plurality of squares or a plurality of rings.
19. The elevator display device monitoring system of claim 16, wherein the display control unit drives display of different tiles at different periods.
20. The elevator display device monitoring system of claim 19, wherein the cycles are such that actual usage times of display cells to be monitored respectively belonging to different tiles between adjacent two drive displays are approximately equal.
21. The elevator display device monitoring system of claim 1, wherein the system further comprises:
the detection unit is used for detecting the display monomer to be monitored and outputting a detection value, wherein the detection value is an actual detection result of an index representing the display function of the display monomer to be monitored;
and the evaluation unit is used for evaluating the display monomer to be monitored and/or the elevator display device according to the detection value of each display monomer to be monitored.
22. The elevator display device monitoring system according to claim 21, wherein the evaluation unit evaluates a single display unit to be monitored in any of the following ways:
mode 1, comparing a detection value of a single display monomer to be monitored with a first threshold value, and if the detection value is smaller than the first threshold value, evaluating the single display monomer to be monitored as displaying abnormal functions;
Mode 2, calculating the difference between the detected value and the reference value of the single display monomer to be monitored, comparing the difference with a second threshold value, if the difference is smaller than the second threshold value, the single display monomer to be monitored is evaluated to be abnormal in display function;
and 3, calculating the ratio of the difference value between the detection value and the reference value of the single display monomer to be monitored to the reference value, comparing the ratio with a third threshold value, and if the ratio is smaller than the third threshold value, evaluating the single display monomer to be monitored as abnormal display function.
23. The elevator display device monitoring system according to claim 21, wherein the evaluation unit evaluates a group of display-to-be-monitored monomers consisting of all display-to-be-monitored monomers corresponding to a certain possible display content in any of the following manners:
the method 1 comprises the steps that detection values of all to-be-monitored display monomers forming the to-be-monitored display monomer group are compared with a first threshold value, and if at least one to-be-monitored display monomer with the detection value smaller than the first threshold value exists in the to-be-monitored display monomer group, the to-be-monitored display monomer group is evaluated to be abnormal in display function;
Mode 2, calculating the difference value between the detection value and the reference value of each to-be-monitored display monomer constituting the to-be-monitored display monomer group, comparing each difference value with a second threshold value, and if at least one to-be-monitored display monomer with the difference value smaller than the second threshold value exists in the to-be-monitored display monomer group, evaluating the to-be-monitored display monomer group as abnormal display function;
means 3 for comparing the detected values of the respective display monomers to be monitored constituting the display monomer group to a first threshold value, and if the number of the display monomers to be monitored whose detected values are smaller than the first threshold value in the display monomer group to be monitored is greater than a fourth threshold value or the ratio of the number of the display monomers to be monitored whose detected values are smaller than the first threshold value to the total number of the display monomers to be monitored constituting the display monomer group to be monitored is greater than a fifth threshold value, evaluating the display monomer group to be abnormal;
mode 4, calculating the difference value between the detection value and the reference value of each to-be-monitored display monomer constituting the to-be-monitored display monomer group, comparing each difference value with a second threshold value, and if the number of to-be-monitored display monomers in which the difference value is smaller than the second threshold value in the to-be-monitored display monomer group is larger than a sixth threshold value or the ratio of the number of to-be-monitored display monomers in which the difference value is smaller than the second threshold value to the total number of to-be-monitored display monomers constituting the to-be-monitored display monomer group is larger than a seventh threshold value, evaluating the to-be-monitored display monomer group as abnormal display function;
Mode 5, calculating each difference value of two adjacent display monomers to be monitored in the display monomer group to be monitored, comparing each difference value with an eighth threshold value, and if the number of difference values exceeding the eighth threshold value is greater than the ninth threshold value, evaluating the display monomer group to be monitored as abnormal display function;
and 6, calculating the difference value between the maximum detection value and the minimum detection value of each to-be-monitored display monomer constituting the to-be-monitored display monomer group, and if the difference value is larger than a tenth threshold value, evaluating the to-be-monitored display monomer group as abnormal display function.
24. The elevator display device monitoring system according to claim 21, wherein the evaluation unit evaluates the elevator display device using any one of:
mode 1, comparing the detection value of each display monomer to be monitored constituting the elevator display device with a first threshold value, and if at least one display monomer to be monitored with the detection value smaller than the first threshold value exists in the elevator display device, evaluating the elevator display device as displaying abnormal functions;
mode 2, calculating the difference value between the detection value and the reference value of each display monomer to be monitored, which forms the elevator display device, and comparing each difference value with a second threshold value, if at least one display monomer to be monitored, which has the difference value smaller than the second threshold value, exists in the elevator display device, the elevator display device is evaluated to display abnormal functions;
Means 3 for comparing the detected value of each of the display units to be monitored included in the elevator display device with a first threshold value, and if the number of display units to be monitored whose detected value is smaller than the first threshold value in the elevator display device is larger than a fourth threshold value or if the ratio of the number of display units to be monitored whose detected value is smaller than the first threshold value to the total number of display units to be monitored constituting the elevator display device is larger than a fifth threshold value, evaluating the elevator display device as displaying a malfunction;
means 4 for calculating differences between the detected values and the reference values of the respective display units to be monitored included in the elevator display device, and comparing the differences with a second threshold value, and if the number of the display units to be monitored whose differences are smaller than the second threshold value in the elevator display device is greater than a sixth threshold value or the ratio of the number of the display units to be monitored whose differences are smaller than the second threshold value to the total number of the display units to be monitored constituting the elevator display device is greater than a seventh threshold value, evaluating the elevator display device as displaying a malfunction;
mode 5, calculating each difference value of two adjacent display monomers to be monitored in the elevator display device, comparing each difference value with an eighth threshold value, and if the number of difference values exceeding the eighth threshold value is greater than the ninth threshold value, evaluating the elevator display device to display abnormal functions;
Mode 6, calculating the difference value between the maximum detection value and the minimum detection value of each display monomer to be monitored contained in the elevator display device, and if the difference value is greater than a tenth threshold value, evaluating the elevator display device to display abnormal functions;
mode 7, calculating each detection value of all to-be-monitored display monomer groups corresponding to all possible display contents to be displayed by the elevator display device, wherein each to-be-monitored display monomer group consists of all to-be-monitored display monomers corresponding to the corresponding possible display contents, and if at least one to-be-monitored display monomer group has the detection value smaller than an eleventh threshold value, the elevator display device is evaluated to display abnormal functions;
a mode 8, calculating the difference value between each detection value and the reference value of all to-be-monitored display monomer groups corresponding to all possible display contents required to be displayed by the elevator display device, and if at least one difference value is smaller than a twelfth threshold value, evaluating the elevator display device to display abnormal functions;
means 9 for calculating each detection value of all to-be-monitored display monomer groups corresponding to all possible display contents to be displayed by the elevator display device, comparing the detection value of each to-be-monitored display monomer group with the eleventh threshold, and if the number of to-be-monitored display monomer groups whose detection value is smaller than the eleventh threshold is greater than a thirteenth threshold or the ratio of the number of to-be-monitored display monomer groups whose detection value is smaller than the eleventh threshold to the number of all to-be-monitored display monomer groups is greater than a fourteenth threshold, evaluating the elevator display device as having abnormal display function;
In the mode 10, the difference value between each detection value and the reference value of all to-be-monitored display monomer groups corresponding to all possible display contents to be displayed by the elevator display device is calculated, each difference value is compared with the twelfth threshold value, and if the number of to-be-monitored display monomer groups with the difference value smaller than the twelfth threshold value is greater than the fifteenth threshold value or the ratio of the number of to-be-monitored display monomer groups with the difference value smaller than the twelfth threshold value to the total number of all to-be-monitored display monomer groups is greater than the sixteenth threshold value, the elevator display device is evaluated as displaying abnormal functions.
25. The elevator display device monitoring system according to claim 24, wherein in modes 7 to 10, an average value is calculated using the detection values of the display cells to be monitored constituting each display cell group to be monitored, and the average value is used as the detection value of each display cell group to be monitored.
26. The elevator display device monitoring system according to claim 21, wherein the step of the evaluation unit evaluating the elevator display device is as follows:
step S1, calculating the difference value between the detection value and the reference value of each display monomer to be monitored and/or the ratio of each difference value to the reference value;
Step S2, dividing intervals of all the differences and/or all the ratios and setting corresponding weight coefficients for each interval;
step S3, determining the number of the monomers to be monitored, which correspond to each interval, according to the difference value and/or the ratio of each interval;
step S4, calculating the performance value of the elevator display device according to the weight coefficient of each interval and the corresponding number of the display monomers to be monitored;
and S5, judging whether the performance value exceeds a seventeenth threshold value, if so, evaluating the elevator display device to display abnormal functions, and otherwise, evaluating the elevator display device to display normal functions.
27. The elevator display device monitoring system according to claim 22 or 23 or 24 or 26, wherein the reference value is an initial value of a display function at the time of shipment of a display unit to be monitored constituting the elevator display device.
28. The elevator display device monitoring system according to claim 1, wherein the to-be-monitored monomer determining unit further determines all display monomers that are not lit in the elevator display device and selects at least one display monomer that is not lit to send to the display control unit; the display control unit also generates a driving signal for driving the display monomer which is not lightened and is selected by the monomer to be monitored determining unit.
29. The elevator display device monitoring system of claim 28, wherein the display control unit drives the unlit display cells in different driving modes such that different unlit display cells exhibit different display effects, and each display effect corresponds to a different rating.
30. The elevator display device monitoring system of claim 29, wherein a monitoring person evaluates a display function level of a display monomer to be monitored as an evaluation level corresponding to a display effect of a display monomer that is not illuminated when the display effect of the display monomer to be monitored is the same as or similar to a display effect of a display monomer that is not illuminated.
31. The elevator display device monitoring system according to claim 21, wherein the to-be-monitored monomer determining unit further determines all display monomers that are not lit in the elevator display device and selects at least one display monomer that is not lit to send to the display control unit; the display control unit also generates a driving signal for driving the display monomer which is not lightened and is selected by the monomer to be monitored determining unit.
32. The elevator display device monitoring system according to claim 31, wherein the detection unit further detects the non-lit display cell selected by the cell to be monitored determination unit and outputs a detection value that is an actual detection result of an index that characterizes a display function of the non-lit display cell;
and the evaluation unit evaluates the display monomer to be monitored and/or the elevator display device according to the detection value of each display monomer to be monitored and the detection value of the selected display monomer which is not lightened.
33. The elevator display device monitoring system of claim 32, wherein the display control unit drives the unlit display cells in different driving modes such that different unlit display cells exhibit different display effects, and each display effect corresponds to a different rating.
34. The elevator display device monitoring system according to claim 33, wherein the evaluation unit evaluates the display function level of a display unit to be monitored as an evaluation level corresponding to the display effect of a display unit that is not lit when the display effect of the display unit to be monitored is the same as or similar to the display effect of the display unit that is not lit.
35. The elevator display device monitoring system of claim 1, wherein the system further comprises:
an instruction receiving unit for receiving a monitoring activation signal from outside;
the display control unit starts to act after the instruction receiving unit receives the monitoring activating signal.
36. The elevator display device monitoring system of claim 35, wherein the monitoring activation signal is generated by a monitoring person using an elevator input device, the display control unit being communicatively coupled to the input device, the monitoring activation signal including an ID of the elevator display device.
37. The elevator display device monitoring system of claim 36, wherein the input device is a destination floor registration device on a landing and/or an up and down button on a landing.
38. The elevator display device monitoring system of claim 35, wherein the monitoring activation signal is generated by a mobile terminal that is directly communicatively coupled to the display control unit, the monitoring activation signal including an ID of the elevator display device.
39. The elevator display device monitoring system of claim 35, wherein the monitoring activation signal is generated by a mobile terminal communicatively coupled to a remote monitoring center communicatively coupled to the display control unit, the monitoring activation signal including an ID of an elevator, an ID of the elevator display device.
40. The elevator display device monitoring system of claim 21, wherein the detection unit is a camera processing unit, the camera processing unit further comprising:
a camera shooting subunit, configured to shoot at least a display area of the elevator display device, so as to obtain an image of display content in the display area;
and the analysis processing subunit is used for analyzing and processing the image shot by the shooting subunit and obtaining a detection value of the display monomer to be monitored according to an analysis processing result.
41. The elevator display device monitoring system of claim 40, wherein the display control unit is further configured to select a detection timing for detecting the elevator display device.
42. An elevator display device monitoring system as defined in claim 41, wherein the detection opportunity is when no passengers are in the car when the elevator display device is in the car; when the elevator display device is positioned on the landing, the detection time is when no passenger is on the landing and/or the elevator is in an idle state.
43. The elevator display device monitoring system of claim 40, wherein the display control unit outputs a driving signal and simultaneously sends an image acquisition signal to the image capture processing unit, and the image capture subunit receives the image acquisition signal for capturing.
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