CN115592789B

Movatterモバイル変換

Info

Publication number: CN115592789B
Application number: CN202211480919.6A
Authority: CN
Inventors: 冯玉婷; 冯玉琦; 冯玉龙; 黄丽媛; 黄佩媛
Original assignee: Shenzhen Xingyaofu Industrial Co ltd
Current assignee: Shenzhen Xingyaofu Industrial Co ltd
Priority date: 2022-11-24
Filing date: 2022-11-24
Publication date: 2023-03-17
Anticipated expiration: 2042-11-24
Also published as: CN115592789A

Abstract

The invention relates to the technical field of temperature regulation and control and image analysis, in particular to an ALC plate static temperature control method, device and system, wherein the ALC plate static temperature control method comprises the following steps: after the plate is placed in the kettle, acquiring an ultrasonic image of the plate as a reference image; introducing water vapor into the kettle until the temperature in the kettle reaches a first set temperature; acquiring a first ultrasonic image of the plate, and adjusting the introduction amount of water vapor according to the reference image and the first ultrasonic image; after the introduction of the water vapor is finished, obtaining a second ultrasonic image of the plate, and determining an initial state curve of the plate according to the reference image and the second ultrasonic image; collecting a third ultrasonic image of the plate at a set time interval, and determining the change characteristics of the plate according to the collected third ultrasonic image; and determining the water vapor pressure maintaining time according to the change state of the plate. The invention comprehensively adjusts the water vapor in the static curing kettle to be introduced through the temperature sensor and the ultrasonic detection device, thereby continuously curing the plate under certain pressure and temperature.

Description

ALC plate static temperature control method, device and system

Technical Field

The invention relates to the technical field of temperature regulation and control and image analysis, in particular to an ALC plate static temperature control method, device and system.

Background

ALC (automatic influenced reinforced weight Concrete, abbreviated as ALC or AAC) panels are all called Autoclaved Aerated Concrete panels, and are formed by curing fly ash (or silica sand), cement, lime and the like as main raw materials through high-pressure steam. The ALC board can be used as a wall material and a roof board, and is a novel building material with excellent performance.

An important process in the production process of the ALC board is static maintenance, namely, the ALC board is placed in a closed space, steam is introduced to keep high pressure, so that series of chemical and physical changes occur in the board, and the strength of the ALC board is improved.

The existing ALC plate static curing treatment only can set various parameters by depending on experience, when the number of plates in a kettle, a stacking mode or the specification of the plates are changed, the adjustment of the static curing parameters cannot be determined, only the most appropriate static curing parameters can be searched again by a plurality of tests, the time is consumed, and the cost is very high.

Disclosure of Invention

In view of the above, there is a need to provide a method, a device and a system for temperature control of ALC board in a static maintenance mode.

The embodiment of the invention is realized in such a way that an ALC plate static maintenance temperature control method comprises the following steps:

after the plate is placed in the kettle, acquiring an ultrasonic image of the plate as a reference image;

introducing water vapor into the kettle until the temperature in the kettle reaches a first set temperature;

acquiring a first ultrasonic image of the plate, and adjusting the introduction amount of water vapor according to the reference image and the first ultrasonic image;

after the introduction of the water vapor is finished, obtaining a second ultrasonic image of the plate, and determining an initial state curve of the plate according to the reference image and the second ultrasonic image;

collecting a third ultrasonic image of the plate according to a set time interval, and determining the change characteristics of the plate according to the collected third ultrasonic image;

and determining the water vapor pressure maintaining time according to the change state of the plate.

In one embodiment, the invention provides an ALC sheet material static temperature control device, which comprises:

the reference image acquisition module is used for acquiring an ultrasonic image of the plate as a reference image after the plate is placed in the kettle;

the water vapor introducing module is used for introducing water vapor into the kettle until the temperature in the kettle reaches a first set temperature;

the adjusting module is used for acquiring a first ultrasonic image of the plate, and adjusting the introduction amount of the water vapor according to the reference image and the first ultrasonic image;

the initial state determining module is used for obtaining a second ultrasonic image of the plate after the introduction of the water vapor is finished, and determining an initial state curve of the plate according to the reference image and the second ultrasonic image;

the change analysis module is used for acquiring a third ultrasonic image of the plate according to a set time interval and determining the change characteristics of the plate according to the acquired third ultrasonic image;

and the pressure maintaining adjusting module is used for determining the pressure maintaining time of the water vapor according to the change state of the plate.

In one embodiment, the invention provides an ALC board static temperature control system, which comprises:

the static curing kettle is used for placing plates;

the first temperature sensor and the second temperature sensor are used for acquiring temperature data;

the ultrasonic detection device is used for acquiring an ultrasonic image of the plate;

the water vapor supply device is used for supplying water vapor to the static curing kettle; and

and the computer equipment is respectively connected with the first temperature sensor, the second temperature sensor, the ultrasonic detection device and the water vapor supply device and is used for executing the ALC plate static maintenance temperature control method.

According to the scheme provided by the invention, the water vapor in the static curing kettle is comprehensively controlled through the temperature sensor and the ultrasonic detection device, so that a certain temperature and pressure are kept in the static curing kettle, the plate can be effectively statically cured, the chemical and physical changes of the internal material are promoted, and the aim of reinforcing the plate is fulfilled. The invention does not need to adapt to specific plate specifications, can realize automatic regulation and control without adjusting algorithm parameters when the number, the placing mode and the like of the plates are changed, solves the problem that specific processing parameters only aim at specific batches of plates in the prior art, and improves the efficiency of static curing processing.

Drawings

FIG. 1 is a flowchart of an ALC board resting temperature control method according to an embodiment;

FIG. 2 is a block diagram of a structure of an ALC plate static temperature control device according to an embodiment;

FIG. 3 is a block diagram of a temperature control system for ALC plate static maintenance provided by an embodiment;

fig. 4 is a block diagram of an internal configuration of a computer device in one embodiment.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in 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 do not limit the invention.

It will be understood that, as used herein, the terms "first," "second," and the like may be used herein to describe various elements, but these elements are not limited by these terms unless otherwise specified. These terms are only used to distinguish one element from another. For example, a first xx script may be referred to as a second xx script, and similarly, a second xx script may be referred to as a first xx script, without departing from the scope of the present disclosure.

As shown in fig. 1, in an embodiment, an ALC board static maintenance temperature control method is provided, which may specifically include the following steps:

step S100, after a plate is placed in a kettle, acquiring an ultrasonic image of the plate as a reference image;

step S200, introducing water vapor into the kettle until the temperature in the kettle reaches a first set temperature;

step S300, acquiring a first ultrasonic image of the plate, and adjusting the introduction amount of water vapor according to the reference image and the first ultrasonic image;

s400, completing introduction of water vapor, acquiring a second ultrasonic image of the plate, and determining an initial state curve of the plate according to the reference image and the second ultrasonic image;

step S500, collecting a third ultrasonic image of the plate according to a set time interval, and determining the change characteristics of the plate according to the collected third ultrasonic image;

and step S600, determining the water vapor pressure maintaining time according to the change state of the plate.

In this embodiment, the still-keeping kettle is a still-keeping kettle, and the still-keeping kettle is a device for still-keeping the plate, and can provide a stable and closed still-keeping environment so as to accelerate the physical or chemical reaction inside the plate and increase the strength of the plate.

In this embodiment, the ultrasonic image is detected by an ultrasonic detection device, a probe of the ultrasonic detection device is disposed in the kettle and directly faces the plate, and the probe can be fixedly disposed or driven by a driving device to perform multi-directional large-scale acquisition. Because the ultrasonic detection device has better penetration capacity, the internal change of the plate in the static state can be detected, thereby adjusting the pressure maintaining time of the water vapor and realizing the automatic adjustment of the pressure maintaining time.

In this embodiment, it can be understood that the ultrasonic detection device detects the change of the ultrasonic backward wave with time or position, and when the same position is detected, the horizontal axes of the images acquired at different times represent different positions; if not specifically stated, the present invention is described by taking the fixed point acquisition as an example in a manner of fixing the ultrasound probe. In this embodiment, it should be noted that the peak is taken as an example to illustrate the present invention, and the ultrasonic reflection increase caused by the density change of the sheet material is mainly considered, on the contrary, when the hole appears in the sheet material, the wave trough characteristic will appear, and the present invention is only taken as an example of the peak.

According to the scheme provided by the invention, the water vapor in the static curing kettle is comprehensively controlled through the temperature sensor and the ultrasonic detection device, so that a certain temperature and pressure are kept in the static curing kettle, the plate can be effectively statically cured, the chemical and physical changes of the internal material are promoted, and the aim of reinforcing the plate is fulfilled. The invention can realize automatic regulation without adapting to specific plate specifications and adjusting algorithm parameters when the number, the arrangement mode and the like of the plates are changed, solves the problem that specific processing parameters only aim at specific batches of plates in the prior art, and improves the efficiency of static curing processing.

As an alternative embodiment of the present invention, the introducing water vapor into the kettle until the temperature in the kettle reaches the first set temperature includes:

acquiring detection values of a first temperature sensor and a second temperature sensor;

determining a change rate of a detection value of the first temperature sensor and a detection value of the second temperature sensor;

determining the time of each detection point reaching the first set temperature according to the change rate, and calculating the maximum time difference between the first temperature sensor and the second temperature sensor when reaching the first set temperature;

calculating the average linear distance between the first temperature sensor and the second temperature sensor, and calculating the ratio of the shortest distance between the plate and the wall surface of the kettle to the average linear distance;

determining a delay time length according to the calculated ratio and the maximum time difference;

when the mean value of the detection values of the second temperature sensor reaches a first set temperature, the introduction of water vapor is suspended for the time delay;

the first temperature sensor is provided with a plurality of detection ends, the detection ends of the second temperature sensors are arranged on the plates and used for detecting the surface temperature of the plates.

In the present embodiment, the ratio of the sum of the distances of each first temperature sensor and the nearest one of the second temperature sensors to the number of first temperature sensors, which is generally equal to the number of second temperature sensors, is calculated as the average linear distance of the first temperature sensors to the second temperature sensors.

In this embodiment, the delay duration is determined according to the calculated ratio and the maximum time difference, for example, if the calculated ratio is a and the maximum time difference is T, the delay duration is equal to (1 + a) × T.

As an optional embodiment of the present invention, the obtaining a first ultrasonic map of the sheet material, and adjusting the amount of the introduced water vapor by using the reference map and the first ultrasonic map, includes:

coinciding the reference map with coordinates of the first ultrasound map;

calculating the difference between the ordinate of the first ultrasonic image and the ordinate of the corresponding point of the reference image to obtain a water vapor influence curve;

setting the window length L, and directly fitting the water vapor influence curve for three times by taking L, 0.5L and 0.25L as step distances respectively;

calculating the maximum deviation of the vertical coordinate of the straight line obtained by fitting in the length of each window, and if the maximum deviation of at least one window is greater than a set deviation threshold value, continuously introducing water vapor;

and repeating the steps until the maximum deviation of the vertical coordinates of the straight line obtained by fitting in any window length is smaller than a set deviation threshold value, and stopping introducing the water vapor.

In this embodiment, the difference between the ordinate of the first sonogram and the ordinate of the point corresponding to the reference graph is calculated, and the resulting graph remains a curve because of the calculated difference between the ordinate of the first sonogram curve and the ordinate of the point corresponding to the reference graph curve.

In this embodiment, the window length L may be selected to be 1/50-1/20 of the width of the entire ultrasound image. In this embodiment, the third linear fit is performed on the basis of the steam influence diagram, the first linear fit, and the second linear fit, respectively. The processing mode is used for stabilizing fluctuation and reducing interference of mean value analysis in each window area.

In this embodiment, the deviation threshold may be set to be 1.2 to 1.5 times the mean value of the ordinate of the steam influence curve.

As an optional embodiment of the present invention, the obtaining a second ultrasonic map of the sheet material, and determining an initial state curve of the sheet material from the reference map and the second ultrasonic map, includes:

the water vapor influence map is made to coincide with the coordinates of the second ultrasonic map;

and calculating the difference between the ordinate of the second ultrasonic image and the ordinate of the corresponding point of the water vapor influence image to obtain an initial shape curve of the plate.

In this embodiment, the calculation method of the initial state curve of the plate is similar to the calculation method of the steam influence curve, and details thereof are not repeated in the embodiment of the present invention.

As an optional embodiment of the present invention, the acquiring a third ultrasonic image of the sheet material at set time intervals, and determining the change state of the sheet material according to the acquired third ultrasonic image, includes:

identifying the wave crest of each acquired third ultrasonic image, and determining the stably existing wave crest;

and comparing and identifying the structural characteristics corresponding to the stably existing wave crests through a preset waveform template to obtain the change state of the plate.

In this embodiment, the steadily existing peaks reflect the enhanced structural changes occurring in the sheet, resulting in a locally denser sheet. The type of the characteristic or the strength change of the plate caused by the characteristic can be determined by a table look-up mode, and when the number or the size of the characteristic reaches a certain value, the strength of the plate is obviously increased.

As an optional embodiment of the present invention, the identifying peaks of each acquired third ultrasound image and determining stably existing peaks includes:

selecting a judgment step pitch, and determining the difference value between the maximum value of the vertical coordinate of the third ultrasonic image in each judgment step pitch and the vertical coordinate of the corresponding point of the initial state curve;

if the obtained difference value is more than 1.5 times of the mean value of the ordinate of the initial state curve in the judgment step pitch, selecting the current step pitch area as a target area;

in the target area, the judgment step of 0.025 times is adopted to move the judgment area to carry out dense sampling to obtain an image peak;

and for each peak, starting from the first third ultrasonic image appearing in the peak, calculating whether the deviation of corresponding acquisition points in two adjacent third ultrasonic images is greater than 70 percent of the total number of the acquisition points or not, and if so, determining that the corresponding peak is a stable peak.

In this embodiment, the judgment step distance may be equal to the length of the window, which is also the width of an operation window, the operation window is moved along the horizontal axis of the ultrasound image, and the above operation is performed every time the operation window is moved by one step distance. And densely sampling the judgment step movement judgment area by 0.025 times of the judgment step to obtain an image peak, namely, moving by 0.025 times of the judgment step, and determining all points meeting the condition in each judgment step to obtain the peak, wherein the meeting condition refers to the points, the difference value of the vertical coordinate of the point and the vertical coordinate of the corresponding point of the initial state curve is more than 1.5 times of the mean value of the vertical coordinates of the initial state curve in the judgment step, and the peaks are formed by smooth connection of the points.

In this embodiment, the two adjacent ultrasound images refer to two ultrasound images acquired by the same ultrasound detection apparatus at two consecutive acquisition time points.

As an optional embodiment of the present invention, the obtaining of the variation characteristic of the plate by comparing and identifying the structural characteristic corresponding to the stably existing peak through the preset waveform template includes:

determining a vertical coordinate corresponding to the peak of each peak which exists stably;

calculating the distribution density of the stably existing wave crests in a selected width area by taking the determined vertical coordinate as a center;

calculating the ratio of the maximum width to the maximum height of the peak, and recording the ratio as the length-width ratio;

calculating the symmetry degree of the wave crest;

determining the corresponding characteristic of each peak by the distribution density, the length-width ratio and the symmetry degree lookup table;

wherein the degree of symmetry is calculated by:

the method comprises the steps of dividing the height of a wave crest into a plurality of equal parts, dividing each divided line segment into a left half segment and a right half segment by the abscissa of the position of the maximum height of the wave crest, calculating the mean value of the ratio of the left half segment to the right half segment of all the divided line segments to obtain the symmetry degree of the wave crest, wherein the symmetry degree of the wave crest is more than or equal to 0 and less than or equal to 1.

In this embodiment, the selected width may be 10-30 times the maximum width of the peak. In this embodiment, a comparison table is preset, where the comparison table is a three-dimensional table, the type of the feature may be found corresponding to the area where the three parameters respectively fall, different feature types correspond to different maximum pressure maintaining durations, and a specific corresponding value may be set by experience, which is not further described in the embodiments of the present invention.

As an alternative embodiment of the present invention, the determining the water vapor dwell time according to the change state of the sheet material includes:

judging whether the change characteristics of the plate are continuously increased or whether the preset maximum pressure maintaining time is reached;

and if the change characteristic of the plate is not continuously increased or the preset maximum pressure maintaining time is reached, stopping the water vapor pressure maintaining, otherwise, prolonging the water vapor pressure maintaining.

In this embodiment, if the change characteristic is continuously increased or the dwell time duration does not reach the maximum dwell time duration, the dwell needs to be continued, otherwise, the dwell processing is completed.

As shown in fig. 2, an embodiment of the present invention further provides an ALC board static temperature control device, where the ALC board static temperature control device includes:

the steam introducing module is used for introducing steam into the kettle until the temperature in the kettle reaches a first set temperature;

In this embodiment, the ALC plate temperature control device is a module of the method of the present invention, and for explanation of each module, reference is made to the contents of the method of the present invention, and details of the embodiment of the present invention are not repeated.

As shown in fig. 3, an embodiment of the present invention further provides an ALC board static temperature control system, where the ALC board static temperature control system includes:

the static curing kettle is used for placing plates;

and the computer equipment is respectively connected with the first temperature sensor, the second temperature sensor, the ultrasonic detection device and the water vapor supply device and is used for executing the ALC plate static maintenance temperature control method in the embodiment of the invention.

In this embodiment, the computer device is connected to each sensor or detection device by a wire, so as to obtain data in real time, and the method provided by the present invention is operated to control the amount of steam introduced and the pressure holding time.

In the embodiment, the ALC plate static-maintenance temperature control method provided by the embodiment of the invention is executed through computer equipment, and water vapor in the static-maintenance kettle is comprehensively controlled through the temperature sensor and the ultrasonic detection device, so that certain temperature and pressure are kept in the static-maintenance kettle, the plate can be effectively static-maintained, the chemical and physical changes of internal materials are promoted, and the aim of reinforcing the plate is fulfilled. The invention can realize automatic regulation without adapting to specific plate specifications and adjusting algorithm parameters when the number, the arrangement mode and the like of the plates are changed, solves the problem that specific processing parameters only aim at specific batches of plates in the prior art, and improves the efficiency of static curing processing.

FIG. 4 is a diagram illustrating an internal structure of a computer device in one embodiment. As shown in fig. 4, the computer apparatus includes a processor, a memory, a network interface, an input device, and a display screen connected through a system bus. Wherein the memory includes a non-volatile storage medium and an internal memory. The non-volatile storage medium of the computer device stores an operating system, and may also store a computer program, and when the computer program is executed by the processor, the processor may implement the ALC plate temperature control method provided in the embodiment of the present invention. The internal memory may also store a computer program, and when the computer program is executed by the processor, the processor may execute the ALC board temperature control method provided in the embodiment of the present invention. The display screen of the computer equipment can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer equipment can be a touch layer covered on the display screen, a key, a track ball or a touch pad arranged on the shell of the computer equipment, an external keyboard, a touch pad or a mouse and the like.

It will be appreciated by those skilled in the art that the configuration shown in fig. 4 is a block diagram of only a portion of the configuration associated with the inventive arrangements and is not intended to limit the computing devices to which the inventive arrangements may be applied, and that a particular computing device may include more or less components than those shown, or may combine certain components, or have a different arrangement of components.

In one embodiment, the ALC board temperature control device provided by the embodiment of the present invention may be implemented in the form of a computer program, and the computer program may be executed on a computer device as shown in fig. 4. The memory of the computer device can store various program modules forming the ALC plate static temperature control device, such as a reference map acquisition module, a water vapor introduction module, an adjustment module, an initial state determination module, a change analysis module and a pressure maintaining adjustment module shown in fig. 3. The program modules constitute computer programs that cause the processor to perform the steps of the ALC board resting temperature control method of the various embodiments of the present invention described in this specification.

For example, the computer apparatus shown in fig. 4 may execute step S100 through the reference map collecting module in the ALC board temperature control device shown in fig. 3; the computer device can execute the step S200 through the water vapor inlet module; the computer device may execute step S300 through the adjusting module; the computer device may perform step S400 through the initial state determination module; the computer device may perform step S500 through the change analysis module; the computer device may perform step S600 through the pressure maintaining adjustment module.

In one embodiment, a computer device is proposed, the computer device 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:

In one embodiment, a computer readable storage medium is provided, having a computer program stored thereon, which, when executed by a processor, causes the processor to perform the steps of:

It should be understood that, although the steps in the flowcharts of the embodiments of the present invention are shown in sequence as indicated by the arrows, the steps are not necessarily performed in sequence as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least a portion of the steps in various embodiments may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, and the order of performance of the sub-steps or stages is not necessarily sequential, but may be performed in turn or alternately with other steps or at least a portion of the sub-steps or stages of other steps.

It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a non-volatile computer-readable storage medium, and can include the processes of the embodiments of the methods described above when the program is executed. Any reference to memory, storage, databases, or other media used in embodiments provided herein may include non-volatile and/or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically Programmable ROM (EPROM), electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), rambus (Rambus) direct RAM (RDRAM), direct Rambus Dynamic RAM (DRDRAM), and Rambus Dynamic RAM (RDRAM), among others.

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-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that various changes and modifications can be made by those skilled in the art without departing from the spirit of the invention, and these changes and modifications are all within the scope of the invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The ALC plate static maintenance temperature control method is characterized by comprising the following steps:

determining the water vapor pressure maintaining time according to the change state of the plate;

let in steam in the cauldron until the cauldron in the temperature reach first settlement temperature, include:

when the mean value of the detection values of the second temperature sensor reaches a first set temperature, the water vapor is stopped to be introduced after the time delay duration;

wherein, first temperature sensor sets up a plurality of, all is located cauldron internal face for detect cauldron internal environment temperature, second temperature sensor is provided with a plurality of, and second temperature sensor's sense terminal sets up on panel, is used for detecting panel surface temperature.

2. An ALC sheet material static curing temperature control method as claimed in claim 1, wherein the obtaining of the first ultrasonic map of the sheet material, and the adjusting of the amount of water vapor introduced from the reference map and the first ultrasonic map, comprises:

coinciding the reference map with coordinates of the first ultrasound map;

and repeating the steps until the maximum deviation of the vertical coordinate of the straight line obtained by fitting in any window length is smaller than a set deviation threshold value, and stopping introducing the water vapor.

3. The ALC plank resting temperature control method of claim 2, wherein the obtaining a second ultrasonic map of the plank, determining the initial state curve of the plank from the baseline map and the second ultrasonic map, comprises:

coinciding the water vapour influence map with the coordinates of the second ultrasound map;

and calculating the difference between the ordinate of the second ultrasonic diagram and the ordinate of the corresponding point of the water vapor influence diagram to obtain the initial shape curve of the plate.

4. The ALC sheet hydrostatic maintenance temperature control method of claim 1, wherein the collecting the third ultrasonic image of the sheet at a set time interval and determining the change state of the sheet according to the collected third ultrasonic image comprises:

5. An ALC sheet static maintenance temperature control method according to claim 4, wherein the identifying peaks of each acquired third ultrasonic image and determining the peaks that exist steadily includes:

if the obtained difference value is more than 1.5 times of the mean value of the ordinate of the initial state curve in the judgment step, selecting the current step area as a target area;

in the target area, moving the judgment area by the judgment step of 0.025 times of the judgment step to perform dense sampling to obtain an image peak;

6. The ALC board static maintenance temperature control method of claim 4, wherein the obtaining of the variation characteristics of the board by comparing and identifying the structural characteristics corresponding to the stably existing wave crest through a preset waveform template comprises:

calculating the ratio of the maximum width to the maximum height of the wave crest, and recording the ratio as the length-width ratio;

calculating the symmetry of the wave crest;

determining the corresponding characteristic of each peak according to the distribution density, the length-width ratio and the symmetry degree lookup table;

wherein the degree of symmetry is calculated by:

7. The ALC plank resting temperature control method of claim 1, wherein the determining the water vapor dwell time based on the state of change of the plank comprises:

8. The ALC plate static temperature control device is characterized by comprising:

the adjusting module is used for acquiring a first ultrasonic image of the plate, and the reference image and the first ultrasonic image are used for adjusting the introduction amount of the water vapor;

the pressure maintaining adjusting module is used for determining the pressure maintaining time of the water vapor according to the change state of the plate;

9. The ALC plate static maintenance temperature control system is characterized by comprising:

the static curing kettle is used for placing plates;

computer equipment, the computer equipment is connected with first temperature sensor, second temperature sensor, supersound detection device and steam supply device respectively, is used for carrying out ALC panel rest temperature control method of any one of claim 1-7.