CN110109062B - Monitoring method and device for abnormality of radar shield and computer equipment - Google Patents

Monitoring method and device for abnormality of radar shield and computer equipment Download PDF

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Publication number
CN110109062B
CN110109062B CN201910317490.0A CN201910317490A CN110109062B CN 110109062 B CN110109062 B CN 110109062B CN 201910317490 A CN201910317490 A CN 201910317490A CN 110109062 B CN110109062 B CN 110109062B
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China
Prior art keywords
radar
abnormality
electromagnetic wave
elevator
change rate
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CN110109062A (en
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赖敏桂
黄立明
刘贤钊
张彩霞
陈刚
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Hitachi Building Technology Guangzhou Co Ltd
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Hitachi Building Technology Guangzhou Co Ltd
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    • 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
    • B66B5/0006—Monitoring devices or performance analysers
    • B66B5/0018—Devices monitoring the operating condition of the elevator system
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/027—Constructional details of housings, e.g. form, type, material or ruggedness

Abstract

The invention relates to a method and a device for monitoring abnormality of a radar shield and computer equipment, and belongs to the technical field of abnormality monitoring. The method comprises the following steps: acquiring a radar feedback signal; the radar feedback signal comprises any one of: a radar signal reflected by the shield, a radar signal reflected by a specific object and returned through the shield; comparing the radar feedback signal with a predetermined feedback reference signal to obtain a comparison difference value; if the comparison difference is greater than or equal to a preset difference threshold, judging that the protective cover is abnormal; and determining the intensity change rate of the radar feedback signal, and determining the type corresponding to the abnormality according to the intensity change rate. Above-mentioned technical scheme has solved the unusual of unable timely definite radar protection casing, can cause the problem of influence to the normal use of radar. The abnormity of the radar protective cover can be found in time, the type corresponding to the abnormity is determined, and the normal use of the radar is ensured.

Description

Monitoring method and device for abnormality of radar shield and computer equipment
Technical Field
The invention relates to the technical field of anomaly monitoring, in particular to a method and a device for monitoring the anomaly of a radar shield, computer equipment and a storage medium.
Background
In application scenarios such as elevators, radar is often required for data monitoring. Often install the protection casing around the radar, through long-time use, the radar protection casing in the radar outside can appear the material and change or the surface attaches the condition such as foreign matter (dust, steam) that these all can influence the normal transmission and the receipt of radar signal.
In the process of implementing the invention, the inventor finds that at least the following problems exist in the prior art: in order to prevent the abnormal operation of the radar shield from affecting the normal operation of the elevator, the radar shield is usually replaced by a worker regularly. However, the abnormality of the radar shield cannot be found in time in the mode, and the normal use of the radar is affected.
Disclosure of Invention
Based on the above, the embodiment of the invention provides a method and a device for monitoring the abnormality of a radar shield, computer equipment and a storage medium, which can find the abnormality of the radar shield in time and ensure the normal use of a radar.
The content of the embodiment of the invention is as follows:
on one hand, the embodiment of the invention provides a method for monitoring the abnormality of a radar shield, which comprises the following steps: acquiring a radar feedback signal; the radar feedback signal comprises any one of: a radar signal reflected by the shield, a radar signal reflected by a specific object and returned through the shield; comparing the radar feedback signal with a predetermined feedback reference signal to obtain a comparison difference value; if the comparison difference is greater than or equal to a preset difference threshold, judging that the protective cover is abnormal; and determining the intensity change rate of the radar feedback signal, and determining the type corresponding to the abnormality according to the intensity change rate.
In one embodiment, the obtaining a radar feedback signal; comparing the radar feedback signal with a predetermined feedback reference signal to obtain a comparison difference value, wherein the comparison difference value comprises the following steps: outputting a first radar control instruction to a radar, wherein the first radar control instruction is used for controlling the radar to output a first transmission electromagnetic wave and receiving a first feedback electromagnetic wave returned by the first transmission electromagnetic wave; comparing the first feedback electromagnetic wave with a predetermined first reference electromagnetic wave, and obtaining a comparison difference value according to a comparison result; wherein the first feedback electromagnetic wave comprises an electromagnetic wave reflected by a shield.
In one embodiment, the obtaining a radar feedback signal; comparing the radar feedback signal with a predetermined feedback reference signal to obtain a comparison difference value, wherein the comparison difference value comprises the following steps: outputting a first operation instruction to an elevator car, wherein the first operation instruction is used for controlling the elevator car to operate among a plurality of floors; outputting a second radar control instruction to the radar, wherein the second radar control instruction is used for controlling the radar to output second transmission electromagnetic waves, and respectively receiving second feedback electromagnetic waves returned by the second transmission electromagnetic waves when the elevator car is positioned on the plurality of floors; comparing the second feedback electromagnetic wave with a predetermined second reference electromagnetic wave, and obtaining a comparison difference value according to a comparison result; wherein the second feedback electromagnetic wave comprises an electromagnetic wave reflected by a specific object and returned through the shield.
In one embodiment, the step of determining the type corresponding to the anomaly according to the intensity change rate includes: if the intensity change rate is larger than or equal to a first change rate threshold value, judging that the type corresponding to the abnormality is the water fog and frost adhesion abnormality; if the intensity change rate is smaller than a first change rate threshold value and is larger than or equal to a second change rate threshold value, judging that the type corresponding to the abnormity is dust adhesion abnormity; and if the strength change rate is smaller than a second change rate threshold value, judging that the type corresponding to the abnormality is the abnormality of the protective cover material.
In one embodiment, further comprising: sending abnormal indication information to a terminal according to the type corresponding to the abnormality; and the abnormal indication information is used for indicating the terminal to carry out specific abnormal control operation according to the type corresponding to the abnormality.
In an embodiment, the step of sending the abnormal indication information to the terminal according to the type corresponding to the abnormality includes: if the type corresponding to the abnormality is water fog and frost adhesion abnormality; outputting an abnormal control instruction to an elevator firmware; the abnormal control command is used for controlling the elevator firmware to carry out specific water mist and frost removal operation; if the type corresponding to the abnormality is dust adhesion abnormality; sending dust alarm information to a maintenance terminal; the dust alarm information is used for controlling the maintenance terminal to output dust removal indication information so as to indicate maintenance personnel to carry out dust removal operation; if the type corresponding to the abnormality is the abnormality of the protective cover material; sending material alarm information to a maintenance terminal; the material alarm information is used for controlling the maintenance terminal to output protection cover replacement indication information so as to indicate maintenance personnel to replace the radar protection cover.
In one embodiment, further comprising: acquiring temperature and humidity detection information; wherein the temperature and humidity detection information includes at least one of: temperature and humidity information detected by a temperature and humidity sensor and temperature and humidity information acquired through a network; determining the probability of abnormal water mist and frost adhesion of the radar shield according to the temperature and humidity detection information; if the probability is higher than a set threshold value, outputting an abnormal control command to an elevator firmware; the abnormal control command is used for controlling the elevator firmware to carry out specific water mist and frost removing operation.
In one embodiment, the elevator firmware includes at least one of: well light, sedan-chair top air conditioner, elevator sedan-chair door and elevator car.
In one embodiment, the step of outputting an exception control command to elevator firmware comprises: sending an illumination instruction to a well illuminating lamp; the lighting instruction is used for controlling the well lighting lamp to illuminate; wherein, the well light sets up near radar protection casing.
In one embodiment, the step of outputting an exception control command to elevator firmware comprises: determining the floor where the radar protection cover is located, and sending a second operation instruction to the elevator car; the second operation instruction is used for controlling the elevator car to operate to the floor where the radar protection cover is located; sending a heating instruction to a car roof air conditioner; and the heating instruction is used for controlling the car roof air conditioner to heat.
In one embodiment, the step of outputting an exception control command to elevator firmware comprises: sending a door opening instruction to an elevator car door; and the door opening instruction is used for controlling the elevator car door to open the door.
In another aspect, an embodiment of the present invention provides a device for monitoring an abnormality of a radar shield, including: the feedback signal acquisition module is used for acquiring a radar feedback signal; the radar feedback signal comprises any one of: a radar signal reflected by the shield, a radar signal reflected by a specific object and returned through the shield; the signal comparison module is used for comparing the radar feedback signal with a predetermined feedback reference signal to obtain a comparison difference value; the abnormity judgment module is used for judging that the protective cover is abnormal if the comparison difference is greater than or equal to a preset difference threshold; and the anomaly type determining module is used for determining the intensity change rate of the radar feedback signal and determining the type corresponding to the anomaly according to the intensity change rate.
In another aspect, an embodiment of the present invention provides a computer device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor implements the following steps when executing the computer program: acquiring a radar feedback signal; the radar feedback signal comprises any one of: a radar signal reflected by the shield, a radar signal reflected by a specific object and returned through the shield; comparing the radar feedback signal with a predetermined feedback reference signal to obtain a comparison difference value; if the comparison difference is greater than or equal to a preset difference threshold, judging that the protective cover is abnormal; and determining the intensity change rate of the radar feedback signal, and determining the type corresponding to the abnormality according to the intensity change rate.
In yet another aspect, an embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, the computer program, when executed by a processor, implementing the steps of: acquiring a radar feedback signal; the radar feedback signal comprises any one of: a radar signal reflected by the shield, a radar signal reflected by a specific object and returned through the shield; comparing the radar feedback signal with a predetermined feedback reference signal to obtain a comparison difference value; if the comparison difference is greater than or equal to a preset difference threshold, judging that the protective cover is abnormal; and determining the intensity change rate of the radar feedback signal, and determining the type corresponding to the abnormality according to the intensity change rate.
One of the above technical solutions has the following advantages or beneficial effects: the method comprises the steps of obtaining a radar feedback signal transmitted or transmitted by a radar protection cover, determining whether the radar protection cover is abnormal or not according to the radar feedback signal, and determining the type corresponding to the abnormality when the radar protection cover is abnormal. The abnormity of the radar protective cover can be found in time, the type corresponding to the abnormity is determined, and the normal use of the radar is ensured.
Drawings
FIG. 1 is a diagram of an exemplary environment in which a method for monitoring for anomalies in a radar shield is implemented;
FIG. 2 is a schematic flow chart of a method for monitoring for anomalies in a radar shield according to one embodiment;
FIG. 3 is a schematic diagram of a signal reflection structure of the radar shield according to one embodiment;
FIG. 4 is a block diagram of the structure of a radar shield and an illumination lamp according to an embodiment;
FIG. 5 is a block diagram of another embodiment of a radar shield and an illumination lamp;
FIG. 6 is a schematic flow chart of a method for monitoring for anomalies in a radar shield according to another embodiment;
FIG. 7 is a schematic flow chart illustrating a method for monitoring for abnormality in a radar cover according to still another embodiment;
FIG. 8 is a schematic structural diagram of an apparatus for monitoring abnormality of a radar shield according to an embodiment;
FIG. 9 shows an internal structure of a computer device according to an embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
The monitoring method for the abnormality of the radar protection cover can be applied to the application environment shown in fig. 1. The application environment includes a main controller 101 and a radar 102 (provided with a shield) which communicate via a network. The radar 102 determines a radar feedback signal and sends the radar feedback signal to the main controller 101, and the main controller 101 determines a type corresponding to the abnormality when determining that the radar shield is abnormal according to the radar feedback signal, and takes corresponding control measures. The main controller 101 may be implemented by a terminal device or a server, the terminal device may be, but is not limited to, various personal computers, notebook computers, smart phones, tablet computers, and portable wearable devices, and the server may be implemented by an independent server or a server cluster formed by a plurality of servers. The radar 102 may be various types of radar devices, such as: beyond-the-horizon radar, microwave radar, millimeter wave radar, laser radar, and the like.
The embodiment of the invention provides a method and a device for monitoring the abnormality of a radar shield, computer equipment and a storage medium. The following are detailed below.
In one embodiment, as shown in FIG. 2, a method for monitoring for radar shield anomalies is provided. Taking the method applied to the main controller in fig. 1 as an example for explanation, the method comprises the following steps:
s201, acquiring a radar feedback signal; the radar feedback signal comprises any one of: the radar signal reflected by the shield, the radar signal reflected by the particular object and returned through the shield.
The radar can be various types of radars arranged inside and outside the elevator, and can be millimeter wave radars and the like. In order to ensure normal use of the radar and prevent dust, water mist, frost and the like, a radar shield (also referred to as a shield or a radome for short) is often arranged around the radar; as shown in fig. 3, be provided with the radar protection casing around the radar, the radar protection casing uses specific material preparation to form, and when the transmitting terminal of radar sent radar signal and reachd the radar protection casing, most radar signal passed the radar protection casing and launched, and the receiving terminal of radar is got back to the part because the reflection of radar protection casing. Specifically, the radar transmits electromagnetic waves I, after passing through the radar shield, one part of the electromagnetic waves II can be reflected, and the other part of the electromagnetic waves III can be transmitted out through the radar shield; the emitted electromagnetic waves are reflected after contacting with the barrier, the reflected electromagnetic waves are transmitted and reflected at the radar shield, the reflected electromagnetic waves are shown as (v), and the transmitted electromagnetic waves are shown as (c). The electromagnetic wave (radar signal reflected by the shield) and the electromagnetic wave (radar signal reflected by a specific object and returned through the shield) can be regarded as radar feedback signals.
In addition, the specific object that reflects the radar signal may be various structures provided in the elevator shaft, such as: hoistway side walls, elevators, counterweights, etc.
S202, comparing the radar feedback signal with a predetermined feedback reference signal to obtain a comparison difference value.
The feedback reference signal may refer to a radar signal reflected by the shield when the shield is in a normal state, or a radar signal reflected by a specific object and returned through the shield.
In this step, the main controller can determine whether there is a difference between the current radar feedback signal and the feedback reference signal according to the radar feedback signal of the radar receiving end, and a comparison difference value is obtained, so that whether the radar protection cover is abnormal can be determined.
S203, if the comparison difference is larger than or equal to a preset difference threshold, judging that the protective cover is abnormal.
The preset difference threshold may be determined according to actual conditions, and the specific numerical value is not limited in the embodiment of the present invention.
In some embodiments, S202 and S203 may also be performed by radar.
And S204, determining the intensity change rate of the radar feedback signal, and determining the type corresponding to the abnormality according to the intensity change rate.
Wherein, the intensity change rate may refer to a numerical change rate of the radar feedback signal over a period of time. The abnormality type of the radar protection cover may be determined according to a rate of change of the intensity of the radar feedback signal. Fog, frost and the like may be rapidly attached to the surface of the radar shield when the temperature changes, while dust requires a longer attachment time and shield material abnormality may require a longer time. Therefore, different intensity change rate threshold values can be set according to the abnormity of different radar protection covers, and when radar detection echoes reach different threshold value ranges, the abnormity of corresponding types of the radar covers is judged.
The corresponding types of the abnormity can be water fog and frost adhesion abnormity, dust adhesion abnormity, protection cover material abnormity, protection cover structure change and the like. Furthermore, the abnormal adhesion of water mist and frost can mean that moisture/water vapor and the like are adhered to the surface of the radar shield, or the adhesion thickness of the moisture/water vapor is too high; the dust adhesion abnormity can mean that dust adheres to the surface of the radar shield, or the dust adhesion thickness is too high; the shield material anomaly may refer to occurrence of dielectric parameters, performance, etc. of the radar shield material, such that normal use of the shield is affected. Therefore, in the step, the main controller determines whether the radar protection cover is abnormal or not according to the radar feedback signal, and determines the type corresponding to the abnormality if the radar protection cover is abnormal.
Furthermore, for the water mist and frost adhesion abnormity, the change rate threshold determined by the water vapor adhesion abnormity, the mist adhesion abnormity and the frost adhesion abnormity can be determined, so as to distinguish the three types of protection cover abnormity.
After the type corresponding to the abnormity is determined, abnormity control operation can be carried out to eliminate the influence caused by the abnormity of the protective cover. The exception mode to be handled may also be different for different exception types.
According to the embodiment, the state of the protective cover does not need to be checked manually and periodically, the abnormality of the radar protective cover can be automatically and timely found, the type corresponding to the abnormality is determined, the abnormal control operation is pertinently adopted, and the normal use of the radar is guaranteed.
In one embodiment, a radar feedback signal is obtained; comparing the radar feedback signal with a predetermined feedback reference signal to obtain a comparison difference value, wherein the comparison difference value comprises the following steps: outputting a first radar control instruction to the radar, wherein the first radar control instruction is used for controlling the radar to output a first transmitting electromagnetic wave and receiving a first feedback electromagnetic wave returned by the first transmitting electromagnetic wave; comparing the first feedback electromagnetic wave with a predetermined first reference electromagnetic wave, and obtaining a comparison difference value according to a comparison result; wherein the first feedback electromagnetic wave comprises an electromagnetic wave reflected by the shield.
The first feedback electromagnetic wave refers to a signal which is fed back through the radar shield after the electromagnetic wave emitted by the radar is transmitted in the space and is reflected by touching an obstacle. The first reference electromagnetic wave may be a feedback signal determined when the radar shield is in a normal state, and since the radar shield is in the normal state at this time, the first reference electromagnetic wave may be compared with the first feedback electromagnetic wave as the reference signal. When the difference between the two is large, the radar protection cover can be considered to be abnormal, and if the difference between the two is small, the radar protection cover can be considered to be not abnormal.
Further, the process of determining the first reference electromagnetic wave may include: if the radar protective cover is in a normal state, outputting a third radar control instruction to the radar; the third radar control instruction is used for controlling the radar to output a third transmitted electromagnetic wave and receiving a third feedback electromagnetic wave returned by the third transmitted electromagnetic wave; determining the third feedback electromagnetic wave as the first reference electromagnetic wave; including electromagnetic waves reflected by the shield.
The specific implementation process for determining the monitoring information of the protective cover can be as follows: in the initial stage of radar installation, the radar records the intensity of the electromagnetic wave reflected by the radar shield as dB _ int. In the using process of the radar, the radar collects the intensity of the reflected electromagnetic wave in real time and records the intensity as dB _ now, and dB _ val is assumed as a judgment threshold value. By comparing dB _ int and dB _ now, the comparison difference | dB can be determinedint-dBnowL. When | dBint-dBnow|≤dBvalAnd when the reflection intensity meets the requirement, the radar shield is considered to be normal. When the surface of the radar has water vapor, dust and changes in the characteristics or structure of the radar cover material, the intensity corresponding to the detected reflected wave of the radar protective cover is as follows: | dBint-dBnow|>dBvalAnd considering that the radar protection cover is abnormal.
When the protective cover changes, the electromagnetic wave transmitted through the protective cover is reflected, so that the feedback electromagnetic wave can fully represent whether the protective cover changes. In the embodiment, the feedback electromagnetic wave is compared with the reference electromagnetic wave, so that an accurate judgment result of the abnormity of the protective cover can be obtained.
In one embodiment, a radar feedback signal is obtained; comparing the radar feedback signal with a predetermined feedback reference signal to obtain a comparison difference value, wherein the comparison difference value comprises the following steps: outputting a first operation instruction to the elevator car, wherein the first operation instruction is used for controlling the elevator car to operate among a plurality of floors; outputting a second radar control instruction to the radar, wherein the second radar control instruction is used for controlling the radar to output second transmission electromagnetic waves and respectively receiving second feedback electromagnetic waves returned by the second transmission electromagnetic waves when the elevator car is positioned on a plurality of floors; comparing the second feedback electromagnetic wave with a predetermined second reference electromagnetic wave, and obtaining a comparison difference value according to a comparison result; wherein the second feedback electromagnetic wave comprises an electromagnetic wave reflected by the specific object and returned through the shield.
Further, the process of determining the second reference electromagnetic wave may include: if the radar protective cover is in a normal state, outputting a third operation instruction to the elevator car and outputting a fourth radar control instruction to the radar; the third operation command is used for controlling the elevator car to operate among a plurality of floors; the fourth radar control command is used for controlling the radar to output a fourth transmitted electromagnetic wave, and receiving a fourth feedback electromagnetic wave returned by the fourth transmitted electromagnetic wave through the radar shield when the elevator is positioned on a plurality of floors; a second reference electromagnetic wave is determined from the fourth feedback electromagnetic wave. Different second reference electromagnetic waves can be corresponding to different floors (at this time, the second feedback electromagnetic wave of each floor needs to be compared with the second reference electromagnetic wave of the corresponding floor), and the second feedback electromagnetic wave can also correspond to one total second reference electromagnetic wave.
The specific implementation process for judging whether the protective cover is abnormal can be as follows: after the radar is installed, when the elevator records that the elevator car stops at each floor, the intensity of the returned electromagnetic wave received by the receiving end of the radar is assumed to be DBx (for example, the intensity of the 1 st floor is DB1, the intensity of the 2 nd floor is DB2 and … …, and the intensity of the x th floor is DBx); in the normal use process of the elevator, the intensity of electromagnetic waves returned by a radar receiving end when the elevator car is at different floors is collected to be DBxnow, the DBxnow is compared with the initial DBx collected after the radar is installed, a comparison difference value | dB _ x-dB _ xnow | is obtained, and the comparison difference value is compared with a difference threshold value DB _ value. When the | dB _ x-dB _ xnow | is less than or equal to DB _ value, the returned electromagnetic wave intensity is considered to meet the requirement, and the protective cover is normal; when | dB _ x-dB _ xnow | is > DB _ value, the returned electromagnetic wave intensity is considered to be not in accordance with the requirement, and the protective cover is abnormal. Here, the second reference electromagnetic waves corresponding to each floor are different; further, the comparison difference values of all the floors are determined, and when the comparison difference values of most or all the floors are abnormal, the protective cover can be considered to be abnormal.
According to the embodiment, the elevator is controlled to run among the floors, the radar feedback signals and the feedback reference signals when the elevator car is located at different floors are compared, whether the radar protective cover is abnormal or not is further determined, and due to the fact that the feedback signals of the floors are considered, the accuracy of the abnormal judgment result of the protective cover is further guaranteed.
In one embodiment, the step of determining the type corresponding to the anomaly according to the intensity change rate includes: acquiring the intensity change rate of the monitoring information of the protective cover; if the intensity change rate is larger than or equal to the first change rate threshold value, judging that the type corresponding to the abnormality is abnormal water fog and frost adhesion; if the intensity change rate is smaller than the first change rate threshold value and is larger than or equal to the second change rate threshold value, judging that the type corresponding to the abnormality is dust adhesion abnormality; and if the strength change rate is smaller than a second change rate threshold value, judging that the type corresponding to the abnormality is the abnormality of the protective cover material.
The first rate threshold, the second rate threshold, and the third rate threshold may be the same or different. Further, for different situations, the magnitude relationship of the first rate of change threshold, the second rate of change threshold, and the third rate of change threshold may be as follows: the first rate of change threshold is less than the second rate of change threshold is less than the third rate of change threshold; other size relationships are also possible.
The abnormal type of protection casing is confirmed through the intensity rate of change of protection casing monitoring information to this embodiment, and the process of confirming is simple, and can obtain accurate protection casing abnormal type.
In one embodiment, the method for monitoring the abnormality of the radar protection cover further comprises the following steps: sending abnormal indication information to the terminal according to the type corresponding to the abnormality; the abnormal indication information is used for indicating the terminal to carry out specific abnormal control operation according to the type corresponding to the abnormality.
The terminal can be, but is not limited to, various interphones, smart phones, tablet computers and portable wearable devices. The abnormality indication information may be warning information (used for indicating relevant abnormality to a worker or a passenger and performing corresponding processing), or may be an operation instruction (used for controlling a terminal to perform corresponding operation so as to eliminate the abnormality).
Further, in some embodiments, the step of sending the abnormality indication information to the terminal according to the type corresponding to the abnormality includes: if the type corresponding to the abnormality is the water fog and frost adhesion abnormality; outputting an abnormal control instruction to an elevator firmware; the abnormal control command is used for controlling the firmware of the elevator to carry out specific water mist and frost removing operation (for example, heating the air around the protective cover, accelerating the air circulation in the hoistway, and the like); if the type corresponding to the abnormality is dust adhesion abnormality; sending dust alarm information to a maintenance terminal; the dust alarm information is used for controlling the maintenance terminal to output dust removal indication information so as to indicate maintenance personnel to carry out dust removal operation; if the type corresponding to the abnormality is the abnormality of the protective cover material; sending material alarm information to a maintenance terminal; the material alarm information is used for controlling the maintenance terminal to output protection cover replacement indication information so as to indicate maintenance personnel to replace the radar protection cover.
Further, in the process of carrying out the abnormal treatment of the protective cover, the elevator can be controlled to stop running or degrade running (deceleration running), and the elevator can be controlled to return to normal running after the abnormal removal of the protective cover.
This embodiment can pertinence ground when the radar protection casing appears unusually to carry out unusual elimination, can effectively guarantee the normal use of radar.
The foregoing embodiment determines whether the protection cover is abnormal by monitoring the real-time state of the protection cover, which may be understood as a passive abnormality treatment method. In fact, active anomaly prevention may also be employed. Specifically, in one embodiment, the method further includes: acquiring temperature and humidity detection information; wherein, the temperature and humidity detection information comprises at least one of the following items: temperature and humidity information detected by a temperature and humidity sensor and temperature and humidity information acquired through a network; determining the probability of abnormal water mist and frost adhesion of the radar shield according to the temperature and humidity detection information; if the probability is higher than the set threshold value, outputting an abnormal control command to an elevator firmware; the abnormal control command is used for controlling the firmware of the elevator to carry out specific water mist and frost eliminating operation. The temperature and humidity information acquired through the network may be: weather information is acquired through a network, and temperature and humidity information obtained after the temperature and humidity in the well are predicted according to the weather information is obtained, for example: when the weather information indicates a heavy rain, the relative humidity of the air in the hoistway is determined to be 80%.
The probability of the abnormal adhesion of the water mist and frost on the radar shield can be determined according to the change rate of the temperature and humidity information, and when the temperature and humidity in the well change violently, the probability of the water mist and frost on the surface of the radar shield is considered to be high.
According to the embodiment, the probability of abnormal water mist and frost adhesion of the protective cover is predicted in a mode of a temperature and humidity sensor and a network, and then corresponding water mist and frost elimination operation is carried out.
In addition, in some embodiments, whether dust adhesion abnormality occurs in the radar protection cover and the protection cover material is abnormal can be determined in an active abnormality prevention mode, for example, the dust density in a hoistway can be determined through a sensor, and then the probability of dust adhesion abnormality occurring in the protection cover can be predicted; the probability of the protective cover material abnormality can be predicted through well light, radiation and other information.
In one embodiment, the water mist frost is attached to the surface of the radar protection cover, the temperature difference between the inner side and the outer side of the protection cover is large, and the water mist frost can be removed when the temperature difference between the inner side and the outer side of the protection cover is reduced, so that the water mist frost removing operation can be performed. The method for removing the water mist and frost can inform workers of manual water mist and frost wiping operation, and can also be realized through elevator firmware arranged in an elevator hoistway. Specifically, the elevator firmware includes at least one of: well light, sedan-chair top air conditioner, elevator sedan-chair door and elevator car. The water mist and frost can be removed by adopting equipment such as a dehumidifier, a dryer and the like.
The step of outputting an abnormal control command to an elevator firmware comprises the following steps: sending an illumination instruction to a well illuminating lamp; the lighting instruction is used for controlling a well lighting lamp to illuminate; wherein, the well light sets up near radar protection casing. The position of the shaft indicating lamp and the radar shield may be as shown in fig. 4 and 5. When glass or other light-permeable materials are used for the radar enclosure, one or more light fixtures providing hoistway lighting may be installed within the radar enclosure depending on the amount of space, as shown in fig. 4. When the radome is made of opaque materials, one or more lighting lamps can be installed on the shaft near the radome, as shown in fig. 5. This light can be the light that generates heat, and at the in-process of light illumination, the heat that its sent can heat the air around the radar protection casing for the inside and outside difference in temperature of protection casing reduces, avoids radar cover top water smoke or frost to appear. In different cases, it may also be necessary to cool the air surrounding the protection shield, and therefore the indicator light may also be an illumination light emitting cold light.
The step of outputting an abnormal control command to an elevator firmware comprises the following steps: determining the floor where the radar protection cover is located, and sending a second operation instruction to the elevator car; the second operation instruction is used for controlling the elevator car to operate to the floor where the radar protection cover is located; sending a heating instruction to a car roof air conditioner; the heating instruction is used for controlling the car roof air conditioner to heat. The air conditioner used by the general elevator car is arranged on the car roof, when the air conditioner operates, the compressor works, hot air generated by the work of the compressor is discharged into a hoistway, and therefore the hot air generated by the air conditioner compressor can be used for heating air near a radar shield or a radar. When the air around the radar needs to be heated, the main controller can control the elevator to run to the floor near the radar protection cover, and meanwhile, the air conditioner is turned on to perform heating work. In some embodiments, the elevator car can also be controlled to perform a cooling operation.
The step of outputting an abnormal control command to an elevator firmware comprises the following steps: sending a door opening instruction to an elevator car door; the door opening command is used for controlling the elevator car door to perform door opening operation. In addition, the step may further include: determining the floor of the air conditioner, and sending a fourth operation instruction to the elevator car; and the fourth operation command is used for controlling the elevator car to operate to the floor where the air conditioner is started. The hoistway is a relatively closed space and the exchange of gas is slow. When the humidity and the temperature of the air inside the well are close to or consistent with those of the outside, frost or water mist cannot be generated on the radar protection cover. Therefore, the humidity and the temperature of the air in the elevator shaft can be close to the outside by accelerating the convection of the air in the shaft. When the elevator remains in the door-open state, the exchange of air in the hoistway with the outside can be accelerated. Therefore, when the air convection of the shaft is required to be accelerated, the elevator can be controlled to keep opening the door, and the air convection inside and outside the shaft is accelerated. In addition, a general building is provided with an air conditioner, the main controller can acquire the air conditioner information of the building, when the protective cover is abnormal in adhesion of water mist and frost and needs to dehumidify or cool and heat the air in the well, the elevator is controlled to run to the corresponding floor where the air conditioner is started, the door is opened, and the air convection in the well is accelerated.
According to the embodiment, the water mist frost is eliminated in multiple modes, so that the abnormal automatic determination of the radar protective cover is realized, the abnormal water mist frost can be eliminated automatically, and the normal operation of the radar protective cover is effectively guaranteed.
In order to better understand the method, an application example of the monitoring method for the abnormality of the radar protection cover is described in detail below by taking the abnormality of the water fog frost as an example.
1. Active anomaly prevention
As shown in fig. 6, the elevator main controller acquires the humidity and the temperature of the elevator shaft through the sensor, acquires the weather information outside the elevator through the network, determines the variation trend of the humidity and the temperature in the shaft according to the weather information, and judges whether the surface of the radar protective cover is possibly attached with water mist and frost. If the temperature or the humidity changes sharply, the working mode of removing the water mist and frost can be entered in advance: the air around the protective cover is heated, ventilated and the like in advance, and maintenance personnel can be informed to perform corresponding treatment, so that the radar protective cover is prevented from generating fog and frost. Meanwhile, the radar can also compare the radar feedback signal with the feedback reference signal in real time, and when the radar feedback signal is close to an abnormal threshold corresponding to the abnormal adhesion of the water mist frost, the condition that the water mist frost is abnormally adhered to the surface of the protective cover is judged, and the working mode of removing the water mist frost is entered. Under the mode of removing water fog frost, can send control command to well light, sedan-chair top air conditioner, elevator sedan-chair door and elevator car, heat or accelerate well circulation of air around the protection casing, realize the elimination of water fog frost.
2. Passive exception handling
As shown in fig. 7, the main controller controls the radar to emit electromagnetic waves, compares the fed-back electromagnetic waves with predetermined reference electromagnetic waves, and determines whether the radar shield is abnormal according to the comparison result. When detecting that the radar outer cover may have fog and frost, the main controller enters an abnormal working mode of the radar protective cover, controls the elevator to remove the fog and frost, controls the elevator to run at a reduced speed or stop running, and informs maintenance personnel. And after the water mist frost of the radar shield is removed, controlling the elevator to recover normal operation.
This embodiment, can in time discover the unusual of radar protection casing, take corresponding unusual elimination operation, guarantee radar protection casing's normal operating.
It should be noted that, for the sake of simplicity, the foregoing method embodiments are described as a series of acts or combinations, but those skilled in the art should understand that the present invention is not limited by the described order of acts, as some steps may be performed in other orders or simultaneously according to the present invention.
Based on the same idea as the monitoring method for the abnormality of the radar protection cover in the embodiment, the invention also provides a monitoring device for the abnormality of the radar protection cover, which can be used for executing the monitoring method for the abnormality of the radar protection cover. For convenience of explanation, the structural schematic diagram of the embodiment of the device for monitoring the abnormality of the radar protection cover only shows a part related to the embodiment of the present invention, and those skilled in the art will understand that the illustrated structure does not constitute a limitation of the device, and may include more or less components than those illustrated, or combine some components, or arrange different components.
As shown in fig. 8, the apparatus for monitoring the abnormality of the radar shield includes a feedback signal obtaining module 801, a signal comparing module 802, an abnormality determining module 803, and an abnormality type determining module 804, which are described in detail as follows:
a feedback signal obtaining module 801, configured to obtain a radar feedback signal; the radar feedback signal comprises any one of: the radar signal reflected by the shield, the radar signal reflected by the particular object and returned through the shield.
The signal comparison module 802 is configured to compare the radar feedback signal with a predetermined feedback reference signal to obtain a comparison difference.
And the abnormality judgment module 803 is configured to judge that the protection cover is abnormal if the comparison difference is greater than or equal to a preset difference threshold.
And an anomaly type determining module 804, configured to determine a strength change rate of the radar feedback signal, and determine a type corresponding to the anomaly according to the strength change rate.
According to the embodiment, the abnormity of the radar protective cover can be found in time, the type corresponding to the abnormity is determined, and the normal use of the radar is guaranteed.
In one embodiment, further comprising: the first comparison difference value determining module is used for outputting a first radar control instruction to the radar, wherein the first radar control instruction is used for controlling the radar to output a first transmitting electromagnetic wave and receiving a first feedback electromagnetic wave returned by the first transmitting electromagnetic wave; comparing the first feedback electromagnetic wave with a predetermined first reference electromagnetic wave, and obtaining a comparison difference value according to a comparison result; wherein the first feedback electromagnetic wave comprises an electromagnetic wave reflected by the shield.
In one embodiment, further comprising: the second comparison difference determining module is used for outputting a first operation instruction to the elevator car, and the first operation instruction is used for controlling the elevator car to operate among a plurality of floors; outputting a second radar control instruction to the radar, wherein the second radar control instruction is used for controlling the radar to output second transmission electromagnetic waves and respectively receiving second feedback electromagnetic waves returned by the second transmission electromagnetic waves when the elevator car is positioned on a plurality of floors; comparing the second feedback electromagnetic wave with a predetermined second reference electromagnetic wave, and obtaining a comparison difference value according to a comparison result; wherein the second feedback electromagnetic wave comprises an electromagnetic wave reflected by the specific object and returned through the shield.
In one embodiment, the anomaly type determination module 804 includes: the strength change rate determining submodule is used for acquiring the strength change rate of the monitoring information of the protective cover; the first judgment submodule is used for judging that the type corresponding to the abnormity is abnormal adhesion of water fog and frost if the intensity change rate is larger than or equal to a first change rate threshold value; the second judgment submodule is used for judging the type corresponding to the abnormity is dust adhesion abnormity if the intensity change rate is smaller than the first change rate threshold value and is larger than or equal to the second change rate threshold value; and the third judgment submodule is used for judging the type corresponding to the abnormity is abnormal of the protective cover material if the strength change rate is smaller than the second change rate threshold value.
In one embodiment, further comprising: the indication information sending module is used for sending the abnormal indication information to the terminal according to the type corresponding to the abnormality; the abnormal indication information is used for indicating the terminal to carry out specific abnormal control operation according to the type corresponding to the abnormality.
In one embodiment, the indication information sending module includes: the water mist and frost processing submodule is used for judging whether the type corresponding to the abnormality is water mist and frost adhesion abnormality; outputting an abnormal control instruction to an elevator firmware; the abnormal control command is used for controlling the firmware of the elevator to carry out specific water mist and frost eliminating operation; the dust processing submodule is used for judging whether the type corresponding to the abnormality is dust adhesion abnormality; sending dust alarm information to a maintenance terminal; the dust alarm information is used for controlling the maintenance terminal to output dust removal indication information so as to indicate maintenance personnel to carry out dust removal operation; the material exception handling submodule is used for judging if the type corresponding to the exception is the exception of the material of the protective cover; sending material alarm information to a maintenance terminal; the material alarm information is used for controlling the maintenance terminal to output protection cover replacement indication information so as to indicate maintenance personnel to replace the radar protection cover.
In one embodiment, further comprising: the detection information acquisition module is used for acquiring temperature and humidity detection information; wherein, the temperature and humidity detection information comprises at least one of the following items: temperature and humidity information detected by a temperature and humidity sensor and temperature and humidity information acquired through a network; the abnormal probability determining module is used for determining the probability of the radar protective cover with abnormal adhesion of water mist and frost according to the temperature and humidity detection information; the water fog and frost eliminating module is used for outputting an abnormal control instruction to the elevator firmware if the probability is higher than a set threshold; the abnormal control command is used for controlling the firmware of the elevator to carry out specific water mist and frost eliminating operation.
In one embodiment, the elevator firmware includes at least one of: well light, sedan-chair top air conditioner, elevator sedan-chair door and elevator car.
In one embodiment, the water fog and frost processing submodule is also used for sending an illumination instruction to a well illuminating lamp; the lighting instruction is used for controlling a well lighting lamp to illuminate; wherein, the well light sets up near radar protection casing.
In one embodiment, the water fog and frost processing submodule is also used for determining the floor where the radar protection cover is located and sending a second operation instruction to the elevator car; the second operation instruction is used for controlling the elevator car to operate to the floor where the radar protection cover is located; sending a heating instruction to a car roof air conditioner; the heating instruction is used for controlling the car roof air conditioner to heat.
In one embodiment, the water fog and frost processing submodule is also used for sending a door opening instruction to the elevator car door; the door opening command is used for controlling the elevator car door to perform door opening operation.
It should be noted that, the monitoring device for monitoring abnormality of a radar protection cover of the present invention corresponds to the monitoring method for monitoring abnormality of a radar protection cover of the present invention one to one, and the technical features and the beneficial effects described in the embodiments of the monitoring method for monitoring abnormality of a radar protection cover are all applicable to the embodiments of the monitoring device for monitoring abnormality of a radar protection cover, and specific contents may be referred to the description in the embodiments of the method of the present invention, which is not described herein again, and thus, the present invention is stated herein.
In addition, in the embodiment of the monitoring apparatus for monitoring the abnormality of the radar protection cover, the logic division of each program module is only an example, and in practical applications, the above functions may be allocated to different program modules according to needs, for example, due to configuration requirements of corresponding hardware or due to convenience in implementation of software, that is, the internal structure of the monitoring apparatus for monitoring the abnormality of the radar protection cover is divided into different program modules to complete all or part of the above described functions.
The monitoring method for the abnormality of the radar protection cover can be applied to computer equipment shown in fig. 9. The computer device may be a server or a terminal device, and its internal structure diagram may be as shown in fig. 9. The computer device includes a processor, a memory, a network interface, and a database connected by a system bus. Wherein the processor is configured to provide computing and control capabilities; the memory comprises a nonvolatile storage medium and an internal memory, wherein the nonvolatile storage medium stores an operating system, a computer program (the computer program realizes a monitoring method for the abnormality of the radar shield when being executed by the processor) and a database, and the internal memory provides an environment for the operating system in the nonvolatile storage medium and the running of the computer program; the database is used for storing data such as shield monitoring information, types corresponding to the abnormity, abnormity indication information and the like; the network interface is used for communicating with an external terminal through network connection.
Those skilled in the art will appreciate that the architecture shown in fig. 9 is merely a block diagram of some of the structures associated with the disclosed aspects and is not intended to limit the computing devices to which the disclosed aspects apply, as particular computing devices may include more or less components than those shown, or may combine certain components, or have a different arrangement of components.
In one embodiment, a computer device is provided, comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, the processor implementing the following steps when executing the computer program: acquiring a radar feedback signal; the radar feedback signal comprises any one of: the radar signal reflected by the protective cover, the radar signal reflected by the specific object and returned by penetrating through the protective cover; comparing the radar feedback signal with a predetermined feedback reference signal to obtain a comparison difference value; if the comparison difference is greater than or equal to a preset difference threshold, judging that the protective cover is abnormal; and determining the intensity change rate of the radar feedback signal, and determining the type corresponding to the abnormality according to the intensity change rate.
In one embodiment, the processor, when executing the computer program, further performs the steps of: outputting a first radar control instruction to the radar, wherein the first radar control instruction is used for controlling the radar to output a first transmitting electromagnetic wave and receiving a first feedback electromagnetic wave returned by the first transmitting electromagnetic wave; comparing the first feedback electromagnetic wave with a predetermined first reference electromagnetic wave, and obtaining a comparison difference value according to a comparison result; wherein the first feedback electromagnetic wave comprises an electromagnetic wave reflected by the shield.
In one embodiment, the processor, when executing the computer program, further performs the steps of: outputting a first operation instruction to the elevator car, wherein the first operation instruction is used for controlling the elevator car to operate among a plurality of floors; outputting a second radar control instruction to the radar, wherein the second radar control instruction is used for controlling the radar to output second transmission electromagnetic waves and respectively receiving second feedback electromagnetic waves returned by the second transmission electromagnetic waves when the elevator car is positioned on a plurality of floors; comparing the second feedback electromagnetic wave with a predetermined second reference electromagnetic wave, and obtaining a comparison difference value according to a comparison result; wherein the second feedback electromagnetic wave comprises an electromagnetic wave reflected by the specific object and returned through the shield.
In one embodiment, the processor, when executing the computer program, further performs the steps of: acquiring the intensity change rate of the monitoring information of the protective cover; if the intensity change rate is larger than or equal to the first change rate threshold value, judging that the type corresponding to the abnormality is abnormal water fog and frost adhesion; if the intensity change rate is smaller than the first change rate threshold value and is larger than or equal to the second change rate threshold value, judging that the type corresponding to the abnormality is dust adhesion abnormality; and if the strength change rate is smaller than a second change rate threshold value, judging that the type corresponding to the abnormality is the abnormality of the protective cover material.
In one embodiment, the processor, when executing the computer program, further performs the steps of: sending abnormal indication information to the terminal according to the type corresponding to the abnormality; the abnormal indication information is used for indicating the terminal to carry out specific abnormal control operation according to the type corresponding to the abnormality.
In one embodiment, the processor, when executing the computer program, further performs the steps of: if the type corresponding to the abnormality is the water fog and frost adhesion abnormality; outputting an abnormal control instruction to an elevator firmware; the abnormal control command is used for controlling the firmware of the elevator to carry out specific water mist and frost eliminating operation; if the type corresponding to the abnormality is dust adhesion abnormality; sending dust alarm information to a maintenance terminal; the dust alarm information is used for controlling the maintenance terminal to output dust removal indication information so as to indicate maintenance personnel to carry out dust removal operation; if the type corresponding to the abnormality is the abnormality of the protective cover material; sending material alarm information to a maintenance terminal; the material alarm information is used for controlling the maintenance terminal to output protection cover replacement indication information so as to indicate maintenance personnel to replace the radar protection cover.
In one embodiment, the processor, when executing the computer program, further performs the steps of: acquiring temperature and humidity detection information; wherein, the temperature and humidity detection information comprises at least one of the following items: temperature and humidity information detected by a temperature and humidity sensor and temperature and humidity information acquired through a network; determining the probability of abnormal water mist and frost adhesion of the radar shield according to the temperature and humidity detection information; if the probability is higher than the set threshold value, outputting an abnormal control command to an elevator firmware; the abnormal control command is used for controlling the firmware of the elevator to carry out specific water mist and frost eliminating operation.
In one embodiment, the elevator firmware includes at least one of: well light, sedan-chair top air conditioner, elevator sedan-chair door and elevator car.
In one embodiment, the processor, when executing the computer program, further performs the steps of: sending an illumination instruction to a well illuminating lamp; the lighting instruction is used for controlling a well lighting lamp to illuminate; wherein, the well light sets up near radar protection casing.
In one embodiment, the processor, when executing the computer program, further performs the steps of: determining the floor where the radar protection cover is located, and sending a second operation instruction to the elevator car; the second operation instruction is used for controlling the elevator car to operate to the floor where the radar protection cover is located; sending a heating instruction to a car roof air conditioner; the heating instruction is used for controlling the car roof air conditioner to heat.
In one embodiment, the processor, when executing the computer program, further performs the steps of: sending a door opening instruction to an elevator car door; the door opening command is used for controlling the elevator car door to perform door opening operation.
In one embodiment, a computer-readable storage medium is provided, having a computer program stored thereon, which when executed by a processor, performs the steps of: acquiring a radar feedback signal; the radar feedback signal comprises any one of: the radar signal reflected by the protective cover, the radar signal reflected by the specific object and returned by penetrating through the protective cover; comparing the radar feedback signal with a predetermined feedback reference signal to obtain a comparison difference value; if the comparison difference is greater than or equal to a preset difference threshold, judging that the protective cover is abnormal; and determining the intensity change rate of the radar feedback signal, and determining the type corresponding to the abnormality according to the intensity change rate.
In one embodiment, the computer program when executed by the processor further performs the steps of: outputting a first radar control instruction to the radar, wherein the first radar control instruction is used for controlling the radar to output a first transmitting electromagnetic wave and receiving a first feedback electromagnetic wave returned by the first transmitting electromagnetic wave; comparing the first feedback electromagnetic wave with a predetermined first reference electromagnetic wave, and obtaining a comparison difference value according to a comparison result; wherein the first feedback electromagnetic wave comprises an electromagnetic wave reflected by the shield.
In one embodiment, the computer program when executed by the processor further performs the steps of: outputting a first operation instruction to the elevator car, wherein the first operation instruction is used for controlling the elevator car to operate among a plurality of floors; outputting a second radar control instruction to the radar, wherein the second radar control instruction is used for controlling the radar to output second transmission electromagnetic waves and respectively receiving second feedback electromagnetic waves returned by the second transmission electromagnetic waves when the elevator car is positioned on a plurality of floors; comparing the second feedback electromagnetic wave with a predetermined second reference electromagnetic wave, and obtaining a comparison difference value according to a comparison result; wherein the second feedback electromagnetic wave comprises an electromagnetic wave reflected by the specific object and returned through the shield.
In one embodiment, the computer program when executed by the processor further performs the steps of: acquiring the intensity change rate of the monitoring information of the protective cover; if the intensity change rate is larger than or equal to the first change rate threshold value, judging that the type corresponding to the abnormality is abnormal water fog and frost adhesion; if the intensity change rate is smaller than the first change rate threshold value and is larger than or equal to the second change rate threshold value, judging that the type corresponding to the abnormality is dust adhesion abnormality; and if the strength change rate is smaller than a second change rate threshold value, judging that the type corresponding to the abnormality is the abnormality of the protective cover material.
In one embodiment, the computer program when executed by the processor further performs the steps of: sending abnormal indication information to the terminal according to the type corresponding to the abnormality; the abnormal indication information is used for indicating the terminal to carry out specific abnormal control operation according to the type corresponding to the abnormality.
In one embodiment, the computer program when executed by the processor further performs the steps of: if the type corresponding to the abnormality is the water fog and frost adhesion abnormality; outputting an abnormal control instruction to an elevator firmware; the abnormal control command is used for controlling the firmware of the elevator to carry out specific water mist and frost eliminating operation; if the type corresponding to the abnormality is dust adhesion abnormality; sending dust alarm information to a maintenance terminal; the dust alarm information is used for controlling the maintenance terminal to output dust removal indication information so as to indicate maintenance personnel to carry out dust removal operation; if the type corresponding to the abnormality is the abnormality of the protective cover material; sending material alarm information to a maintenance terminal; the material alarm information is used for controlling the maintenance terminal to output protection cover replacement indication information so as to indicate maintenance personnel to replace the radar protection cover.
In one embodiment, the computer program when executed by the processor further performs the steps of: acquiring temperature and humidity detection information; wherein, the temperature and humidity detection information comprises at least one of the following items: temperature and humidity information detected by a temperature and humidity sensor and temperature and humidity information acquired through a network; determining the probability of abnormal water mist and frost adhesion of the radar shield according to the temperature and humidity detection information; if the probability is higher than the set threshold value, outputting an abnormal control command to an elevator firmware; the abnormal control command is used for controlling the firmware of the elevator to carry out specific water mist and frost eliminating operation.
In one embodiment, the elevator firmware includes at least one of: well light, sedan-chair top air conditioner, elevator sedan-chair door and elevator car.
In one embodiment, the computer program when executed by the processor further performs the steps of: sending an illumination instruction to a well illuminating lamp; the lighting instruction is used for controlling a well lighting lamp to illuminate; wherein, the well light sets up near radar protection casing.
In one embodiment, the computer program when executed by the processor further performs the steps of: determining the floor where the radar protection cover is located, and sending a second operation instruction to the elevator car; the second operation instruction is used for controlling the elevator car to operate to the floor where the radar protection cover is located; sending a heating instruction to a car roof air conditioner; the heating instruction is used for controlling the car roof air conditioner to heat.
In one embodiment, the computer program when executed by the processor further performs the steps of: sending a door opening instruction to an elevator car door; the door opening command is used for controlling the elevator car door to perform door opening operation.
It will be understood by those skilled in the art that all or part of the processes of the methods of the above embodiments may be implemented by a computer program, which is stored in a computer readable storage medium and sold or used as a stand-alone product. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
The terms "comprises" and "comprising," and any variations thereof, of embodiments of the present invention are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or (module) elements is not limited to only those steps or elements but may alternatively include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-described examples merely represent several embodiments of the present invention and should not be construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A method for monitoring the abnormality of a radar shield is characterized by comprising the following steps:
acquiring a radar feedback signal; the radar feedback signal comprises any one of: a radar signal reflected by the shield, a radar signal reflected by a specific object and returned through the shield;
comparing the radar feedback signal with a predetermined feedback reference signal to obtain a comparison difference value;
if the comparison difference is greater than or equal to a preset difference threshold, judging that the protective cover is abnormal;
determining the intensity change rate of the radar feedback signal, and determining the type corresponding to the abnormality according to the intensity change rate;
the radar feedback signal is obtained; comparing the radar feedback signal with a predetermined feedback reference signal to obtain a comparison difference value, wherein the comparison difference value comprises the following steps:
outputting a first radar control instruction to a radar, wherein the first radar control instruction is used for controlling the radar to output a first transmission electromagnetic wave and receiving a first feedback electromagnetic wave returned by the first transmission electromagnetic wave; comparing the first feedback electromagnetic wave with a predetermined first reference electromagnetic wave, and obtaining a comparison difference value according to a comparison result; wherein the first feedback electromagnetic wave comprises an electromagnetic wave reflected by a shield;
and/or the presence of a gas in the gas,
outputting a first operation instruction to an elevator car, wherein the first operation instruction is used for controlling the elevator car to operate among a plurality of floors; outputting a second radar control instruction to the radar, wherein the second radar control instruction is used for controlling the radar to output second transmission electromagnetic waves, and respectively receiving second feedback electromagnetic waves returned by the second transmission electromagnetic waves when the elevator car is positioned on the plurality of floors; comparing the second feedback electromagnetic wave with a predetermined second reference electromagnetic wave, and obtaining a comparison difference value according to a comparison result; wherein the second feedback electromagnetic wave comprises an electromagnetic wave reflected by a specific object and returned through the shield;
the step of determining the type corresponding to the abnormality according to the intensity change rate includes:
if the intensity change rate is larger than or equal to a first change rate threshold value, judging that the type corresponding to the abnormality is the water fog and frost adhesion abnormality;
if the intensity change rate is smaller than a first change rate threshold value and is larger than or equal to a second change rate threshold value, judging that the type corresponding to the abnormity is dust adhesion abnormity;
if the strength change rate is smaller than a second change rate threshold value, judging that the type corresponding to the abnormity is the abnormity of the protective cover material;
further comprising:
if the type corresponding to the abnormality is water fog and frost adhesion abnormality; outputting an abnormal control instruction to an elevator firmware; the abnormal control command is used for controlling the elevator firmware to carry out specific water mist and frost removal operation;
if the type corresponding to the abnormality is dust adhesion abnormality; sending dust alarm information to a maintenance terminal; the dust alarm information is used for controlling the maintenance terminal to output dust removal indication information so as to indicate maintenance personnel to carry out dust removal operation;
if the type corresponding to the abnormality is the abnormality of the protective cover material; sending material alarm information to a maintenance terminal; the material alarm information is used for controlling the maintenance terminal to output protection cover replacement indication information so as to indicate maintenance personnel to replace the radar protection cover.
2. The method for monitoring abnormality of a radar protection cover according to claim 1, further comprising:
acquiring temperature and humidity detection information; wherein the temperature and humidity detection information includes at least one of: temperature and humidity information detected by a temperature and humidity sensor and temperature and humidity information acquired through a network;
determining the probability of abnormal water mist and frost adhesion of the radar shield according to the temperature and humidity detection information;
if the probability is higher than a set threshold value, outputting an abnormal control command to an elevator firmware; the abnormal control command is used for controlling the elevator firmware to carry out specific water mist and frost removing operation.
3. The method for monitoring abnormality of a radar protection cover according to claim 1 or 2, wherein the elevator firmware includes a hoistway illumination lamp;
the step of outputting the abnormal control command to the elevator firmware comprises the following steps:
sending an illumination instruction to a well illuminating lamp; the lighting instruction is used for controlling the well lighting lamp to illuminate; wherein, the well light sets up near radar protection casing.
4. The method of monitoring for radar shield abnormalities according to claim 1 or 2, characterized in that said elevator firmware comprises at least one of the following: car top air conditioners and elevator cars;
the step of outputting the abnormal control command to the elevator firmware comprises the following steps:
determining the floor where the radar protection cover is located, and sending a second operation instruction to the elevator car; the second operation instruction is used for controlling the elevator car to operate to the floor where the radar protection cover is located;
sending a heating instruction to a car roof air conditioner; and the heating instruction is used for controlling the car roof air conditioner to heat.
5. The method of monitoring for radar shield abnormalities according to claim 1 or 2, wherein said elevator firmware comprises an elevator car door;
the step of outputting the abnormal control command to the elevator firmware comprises the following steps:
sending a door opening instruction to an elevator car door; and the door opening instruction is used for controlling the elevator car door to open the door.
6. A monitoring device for radar shield abnormality, comprising:
the feedback signal acquisition module is used for acquiring a radar feedback signal; the radar feedback signal comprises any one of: a radar signal reflected by the shield, a radar signal reflected by a specific object and returned through the shield;
the signal comparison module is used for comparing the radar feedback signal with a predetermined feedback reference signal to obtain a comparison difference value;
the abnormity judgment module is used for judging that the protective cover is abnormal if the comparison difference is greater than or equal to a preset difference threshold;
the abnormal type determining module is used for determining the intensity change rate of the radar feedback signal and determining the type corresponding to the abnormality according to the intensity change rate;
further comprising: the first comparison difference value determining module is used for outputting a first radar control instruction to the radar, wherein the first radar control instruction is used for controlling the radar to output a first transmitting electromagnetic wave and receiving a first feedback electromagnetic wave returned by the first transmitting electromagnetic wave; comparing the first feedback electromagnetic wave with a predetermined first reference electromagnetic wave, and obtaining a comparison difference value according to a comparison result; wherein the first feedback electromagnetic wave comprises an electromagnetic wave reflected by the shield;
further comprising: the second comparison difference determining module is used for outputting a first operation instruction to the elevator car, and the first operation instruction is used for controlling the elevator car to operate among a plurality of floors; outputting a second radar control instruction to the radar, wherein the second radar control instruction is used for controlling the radar to output second transmission electromagnetic waves and respectively receiving second feedback electromagnetic waves returned by the second transmission electromagnetic waves when the elevator car is positioned on a plurality of floors; comparing the second feedback electromagnetic wave with a predetermined second reference electromagnetic wave, and obtaining a comparison difference value according to a comparison result; the second feedback electromagnetic wave comprises an electromagnetic wave which is reflected by a specific object and returns through the protective cover;
an anomaly type determination module comprising: the strength change rate determining submodule is used for acquiring the strength change rate of the monitoring information of the protective cover; the first judgment submodule is used for judging that the type corresponding to the abnormity is abnormal adhesion of water fog and frost if the intensity change rate is larger than or equal to a first change rate threshold value; the second judgment submodule is used for judging the type corresponding to the abnormity is dust adhesion abnormity if the intensity change rate is smaller than the first change rate threshold value and is larger than or equal to the second change rate threshold value; the third judgment submodule is used for judging the type corresponding to the abnormity is abnormal of the protective cover material if the strength change rate is smaller than the second change rate threshold value;
further comprising: the water mist and frost processing submodule is used for judging whether the type corresponding to the abnormality is water mist and frost adhesion abnormality; outputting an abnormal control instruction to an elevator firmware; the abnormal control command is used for controlling the firmware of the elevator to carry out specific water mist and frost eliminating operation; the dust processing submodule is used for judging whether the type corresponding to the abnormality is dust adhesion abnormality; sending dust alarm information to a maintenance terminal; the dust alarm information is used for controlling the maintenance terminal to output dust removal indication information so as to indicate maintenance personnel to carry out dust removal operation; the material exception handling submodule is used for judging if the type corresponding to the exception is the exception of the material of the protective cover; sending material alarm information to a maintenance terminal; the material alarm information is used for controlling the maintenance terminal to output protection cover replacement indication information so as to indicate maintenance personnel to replace the radar protection cover.
7. The apparatus for monitoring abnormality of a radar protection cover according to claim 6, further comprising:
the detection information acquisition module is used for acquiring temperature and humidity detection information; wherein, the temperature and humidity detection information comprises at least one of the following items: temperature and humidity information detected by a temperature and humidity sensor and temperature and humidity information acquired through a network;
the abnormal probability determining module is used for determining the probability of the radar protective cover with abnormal adhesion of water mist and frost according to the temperature and humidity detection information;
the water fog and frost eliminating module is used for outputting an abnormal control instruction to the elevator firmware if the probability is higher than a set threshold; the abnormal control command is used for controlling the firmware of the elevator to carry out specific water mist and frost eliminating operation.
8. The apparatus for monitoring abnormality of a radar protection cover according to claim 6 or 7, wherein the elevator firmware includes a hoistway illumination lamp;
the water mist and frost processing submodule is also used for sending an illumination instruction to a well lighting lamp; the lighting instruction is used for controlling a well lighting lamp to illuminate; wherein, the well light sets up near radar protection casing.
9. A computer device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor, when executing the computer program, implements the steps of the method of any of claims 1 to 5.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 5.
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