WO2020177165A1 - Crack change monitoring device and crack change monitoring method - Google Patents

Crack change monitoring device and crack change monitoring method Download PDF

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Publication number
WO2020177165A1
WO2020177165A1 PCT/CN2019/079624 CN2019079624W WO2020177165A1 WO 2020177165 A1 WO2020177165 A1 WO 2020177165A1 CN 2019079624 W CN2019079624 W CN 2019079624W WO 2020177165 A1 WO2020177165 A1 WO 2020177165A1
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WIPO (PCT)
Prior art keywords
crack
change monitoring
monitoring device
image sensor
crack change
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PCT/CN2019/079624
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French (fr)
Chinese (zh)
Inventor
泽江哲则
畑部悦生
戚务昌
刘振翔
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威海华菱光电股份有限公司
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Publication of WO2020177165A1 publication Critical patent/WO2020177165A1/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination

Definitions

  • the invention relates to the field of crack detection equipment, in particular to a crack change monitoring device and a crack change monitoring method.
  • the current detection method is to capture the state of the wall crack when the wall crack is in, and whether the building is in a state that needs maintenance, it needs to be measured on the spot regularly, which is very troublesome to implement. In addition, no matter which device, it is difficult to measure wall cracks at the same location, and it is impossible to accurately determine how the crack state changes and whether it is necessary to continue measuring.
  • the main purpose of the present invention is to provide a crack change monitoring device and a crack change monitoring method to solve the problem that the crack change monitoring device in the prior art is difficult to continuously monitor the same location.
  • a crack change monitoring device which includes: a box body with a detection surface, the detection surface is arranged in close contact with the position to be detected; a fixed structure, the box body is fixed by The structure is installed at the position to be detected and kept fixed; at least one image sensor, the image sensor is set in the box and the detection end of the image sensor is set toward the detection surface; the light source, the light source is set in the box and is set toward the detection surface, the light source is Multiple, and at least one light source is provided on the upper and lower sides of the image sensor, the light source illuminates the wall and the crack at the position to be detected, the image sensor collects the brightness level line of the wall and the crack; the crack change monitoring department, the crack change monitoring The section is connected with the image sensor, the crack change monitoring section receives and stores the brightness level line collected by the image sensor according to the first preset time interval, and compares any two groups of brightness level lines before and after the second preset time interval.
  • the box is divided into a power area and a detection area along the lateral direction.
  • the detection area includes a collection area and a processing area, and the processing area is located above or below the collection area; the image sensor and light source are located in the collection area, and the crack change monitoring part is located in the processing area.
  • the crack change monitoring device includes a battery pack, which is located in the power zone and supplies power to the image sensor, light source and crack change monitoring unit.
  • the crack change monitoring device further includes a switch circuit, the battery pack supplies power to the switch circuit, the image sensor, the light source, the crack change monitoring part and the output device are connected with the switch circuit, and the switch circuit controls the crack change monitoring device according to the third preset time. Start or stop.
  • the multiple image sensors and multiple light sources are arranged alternately in sequence, and the multiple image sensors are respectively connected to the crack change monitoring part.
  • the resolution of the image sensor is greater than or equal to 200 DPI.
  • the light source is an LED light source, and the LED light source emits visible light and/or invisible light.
  • the brightness value changes of the scanning path synchronized with the clock signal collected by the image sensor in the multiple line scanning periods form a brightness level line.
  • the crack change monitoring unit includes a clock unit, through which the first preset time and the second preset time are set and timed; a data storage unit, which receives and stores the brightness level line collected by the image sensor; and a calculation unit, The calculation unit performs differential calculation on any two sets of collected brightness level lines before and after to obtain the width change data of the crack at the position to be detected.
  • the data storage unit includes a first memory and a second memory.
  • the first memory records the brightness level line collected by the image sensor for the first time
  • the second memory records the brightness level collected by the image sensor every time except for the first time.
  • the calculation unit performs a differential calculation on the brightness level line of the first memory and the second memory to obtain the width change data of the crack at the current position to be detected.
  • the output device includes a wireless control unit, and the wireless control unit receives and transmits the width change data of the crack.
  • the wireless control unit includes: a wireless network; a wireless control body that receives data of the width change of the crack; an antenna, the antenna is connected to the wireless control body, and the antenna sends the data of the width change of the crack to the outside through the wireless network.
  • the output device further includes: a database, which stores the crack width change data sent by the wireless control unit; the computer terminal analyzes the crack width change data, and when the crack width change data in the database exceeds the warning value, the computer terminal Issue a reminder.
  • the computer terminal includes at least one of a display, a buzzer and an alarm indicator.
  • a crack change monitoring method which adopts the above-mentioned crack change monitoring device to monitor cracks.
  • the crack change monitoring method includes: fixing the crack change monitoring device on the crack before monitoring the crack. On the wall where the crack change monitoring device is located, the detection surface of the box body of the crack change monitoring device is attached to the wall, and the scanning path of the image sensor of the crack change monitoring device is perpendicular to the extension direction of the crack; turn on the power to monitor the crack change
  • the device automatically performs the initialization setting process, and transfers the pre-set clock frequency, line scan period, scan times, light source turn-on time, and image sensor related parameters into the corresponding internal registers of the image sensor to complete the initialization setting;
  • the change monitoring device performs the initial value test stage of the crack, and the image sensor is activated, so that the image sensor scans the width of the crack according to the preset conditions, and the result is stored in the first memory of the crack change monitoring part of the crack change monitoring device ;
  • the image sensor continues to scan the
  • the crack change monitoring device can establish communication with the computer terminal. First, the code of the output device of the crack change monitoring device is sent to the computer terminal. After the computer terminal receives the code of the crack change monitoring device A confirmation message will be returned to the crack change monitoring device, and the output device will send the initial crack data to the computer terminal after receiving the confirmation message.
  • the crack change monitoring device enters the normal operation procedure.
  • the crack change monitoring device enters the standby state, some functions of the crack change monitoring device will automatically power off, and the clock unit of the crack change monitoring department automatically enters the timing state, reaching the third After the preset time interval, the entire crack change monitoring device is restored to the working state, the image sensor scans, and the scan data is stored in the second memory.
  • the computer terminal judges that the sent data is abnormal, it can call the crack change monitoring device at any time. After the crack change monitoring device receives the call signal, it will return to the working state, and measure the width of the crack again, and send the measurement result to Computer terminal.
  • the crack change monitoring device in this application includes a box, a fixed structure, at least one image sensor, a light source, a crack change monitoring part, and an output device.
  • the box has a detection surface, and the detection surface is set at the position to be detected.
  • the box is installed at the position to be detected by a fixed structure and kept fixed; the image sensor is installed in the box and the detection end of the image sensor is set toward the detection surface
  • the light source is arranged in the box and facing the detection surface. There are multiple light sources, and at least one light source is arranged on the upper and lower sides of the image sensor.
  • the light source illuminates the wall and the crack at the position to be detected, and the image sensor collects the wall and the crack
  • the brightness level line at the location the crack change monitoring part is connected with the image sensor, and the crack change monitoring part receives the brightness level line collected by the image sensor according to the first preset time interval and stores it, and according to the second preset time interval
  • the two sets of brightness level lines are compared to obtain the width change data of the crack at the position to be detected;
  • the output device is connected with the crack change monitoring part to output by at least one of displaying, storing records, and alarming.
  • the light source is used to illuminate the position to be detected, and the image sensor is used to obtain the image of the position to be detected.
  • the brightness level line of the position to be detected can be sent to the crack change monitoring section. After receiving the brightness level line, the two sets of different brightness level lines can be stored and processed, and the width change of the crack at the same position in the corresponding time interval can be calculated.
  • the crack change monitoring unit can also send the calculated data to the output device after the calculation is completed, and when the data received by the output device exceeds the set value, it can send a reminder to the staff.
  • the crack change monitoring device also has a box and a fixed structure
  • the image sensor, light source, and crack change monitoring part in the crack change monitoring device can be set inside the box and fixed at the position to be detected through the fixed structure. Therefore, the same position of the crack can be detected multiple times over a long period of time.
  • Figure 1 shows a schematic structural diagram of a crack change monitoring device according to a specific embodiment of the present invention
  • Figure 2 shows a schematic diagram of the structure of the wall to be tested
  • FIG. 3 shows a timing diagram of the action description obtained after detecting the crack in FIG. 2;
  • FIG. 4 shows a schematic diagram of the structure after the crack in FIG. 2 is widened
  • FIG. 5 shows a timing diagram of the action description obtained after detecting the crack in FIG. 4;
  • FIG. 6 shows an action explanation timing diagram obtained after differential calculations are performed on the action explanation timing diagrams in FIGS. 3 and 5;
  • Figure 7 shows a partial perspective view of the crack change monitoring device in Figure 1;
  • Figure 8 shows a schematic diagram of the case of the crack change monitoring device in Figure 1 installed on reinforced concrete
  • FIG. 9 shows a schematic diagram of the case of the crack change monitoring device in FIG. 1 when installed on a bridge truss;
  • FIG. 10 shows a schematic diagram of distribution when there are multiple image sensors and light sources in another embodiment of the present invention.
  • FIG. 11 shows a schematic diagram of a wall to be detected to which the crack change monitoring device in FIG. 10 is applied.
  • the present application provides a crack change monitoring device and a crack change monitoring method.
  • the crack change monitoring device in the present application includes: a box 10, a fixed structure, at least one image sensor 20, a light source 30, a crack change monitoring unit 40 and an output device 50.
  • the box body 10 has a detection surface, and the detection surface is arranged at the position to be detected.
  • the box body 10 is installed at the position to be detected through a fixed structure and kept fixed; the image sensor 20 is arranged in the box body 10 and the image sensor 20 The detection end is arranged towards the detection surface; the light source 30 is arranged in the box 10 and towards the detection surface.
  • the light source 30 illuminates the position to be detected
  • the image sensor 20 collects the brightness level lines of the wall and the cracks;
  • the crack change monitoring part 40 is connected to the image sensor 20, and the crack change monitoring part 40 receives the information collected by the image sensor 20 according to the first preset time interval
  • the brightness level line is stored, and any two groups of brightness level lines before and after are compared according to the second preset time interval to obtain the width change data of the crack at the position to be detected;
  • the output device 50 is connected to the crack change monitoring part 40, Output in at least one way of displaying, storing records, and alarming.
  • the light source 30 is used to illuminate the position to be detected, and the image sensor 20 is used to obtain the image of the position to be detected.
  • the brightness level line of the position to be detected can be sent to the crack change monitoring unit 40, and the crack change After receiving the brightness level line, the monitoring unit 40 can store and process the two sets of different brightness level lines, and at the same time calculate the width change of the crack at the same position in the corresponding time interval.
  • the crack change monitoring unit 40 can also send the calculated data to the output device 50 after the calculation is completed. When the data received by the output device 50 exceeds the set value, it can send a reminder to the staff.
  • the crack change monitoring device also has a box body 10 and a fixed structure
  • the image sensor 20, light source 30, and crack change monitoring part 40 in the crack change monitoring device can be arranged inside the box body 10 and fixed in the box body 10 through the fixed structure. At the position to be inspected, the same position of the crack can be inspected multiple times over a long period of time.
  • the size of the selected box body 10 can reach 10 cm wide * 5 cm long * 3 cm high.
  • the box body 10 is divided into a power zone and a detection zone along the lateral direction.
  • the detection zone includes a collection zone and a processing zone, and the processing zone is located above or below the collection zone; the image sensor 20 and the light source 30 are located in the collection zone,
  • the change monitoring unit 40 is located in the processing area, and the crack change monitoring device includes a battery pack 43 that is located in the power area and supplies power to the image sensor 20, the light source 30 and the crack change monitoring unit 40.
  • FIG 8 it is a schematic diagram of the installation of the crack change monitoring device on reinforced concrete, which is firmly fixed by common methods such as glue or expansion wire on the reinforced concrete.
  • shielding materials can be used to cover the surroundings of the box to prevent external light and rain from intruding and to ensure that the crack change monitoring device can be used for a long time.
  • Figure 9 it is a schematic diagram of the installation of the crack change monitoring device on the truss of a highway or an iron bridge using the same method.
  • the crack change monitoring device further includes a switch circuit
  • the battery pack 43 supplies power to the switch circuit
  • the image sensor 20, the light source 30, the crack change monitoring unit 40 and the output device 50 are connected to the switch circuit
  • the switch circuit is based on the third preset time. Control the start or stop of the crack change monitoring device.
  • multiple locations of wall cracks can be monitored simultaneously, and the crack change monitoring device can monitor more detailed crack change information.
  • the resolution of the image sensor 20 is greater than or equal to 200 DPI.
  • the required image resolution is at least 127 DPI or higher. Therefore, in this application, a commonly used contact image sensor 20 with a resolution of 200 DPI or higher is selected.
  • the light source 30 is an LED light source, and the LED light source emits visible light and/or invisible light.
  • an LED light source with a wavelength in the visible light band, such as red light, green light, and blue light.
  • infrared and ultraviolet LED light sources can be used to read the detailed status of the crack groove more intensified.
  • the brightness value changes of the scan path synchronized with the clock signal collected by the image sensor 20 in the multiple line scan periods form a brightness level line.
  • FIGS. 3 and 5 it is a timing diagram illustrating the operation of the image sensor 20, which includes a clock signal 201 and a line period signal 202, where the line period signal 202 includes two horizontal scanning periods.
  • the line period signal 202 may also include multiple scans, and the number of scans is determined by the consistency of the obtained data.
  • the image sensor 20 converts an analog signal synchronized with the clock signal 201 into a digital signal, and can output a brightness level line (ie 203 in FIG. 3 and 403 in FIG.
  • one line scan cycle represents one scan of the crack reading line 115, where the cracks on the wall 112 (and 113 in FIG. 2 and 301 in FIG. 4) will change with time. Variety.
  • A is the wall part without cracks
  • B is the corresponding crack part in the wall.
  • the crack change monitoring unit 40 includes a clock unit, a data storage unit 41 and a calculation unit 42.
  • the first preset time and the second preset time are set and timed by the clock unit; the brightness level line collected by the image sensor 20 is received and stored; the calculation unit 42 performs differential calculation on any two groups of collected brightness level lines before and after, In order to obtain the width change data of the crack at the position to be detected.
  • the data storage unit 41 can store the digital signal and the brightness level line output by the image sensor 20 each time, and the calculation unit 42 can calculate the brightness level line in the data storage unit 41, and can compare any two by calculation.
  • the second crack width value, the width change of the crack in the corresponding time interval is obtained.
  • some known image processing techniques such as sensitive correction, edge enhancement, and contrast adjustment may also be added to obtain more accurate crack calculation accuracy.
  • FIG. 6 it is the signal of the comparison result of the two monitoring data by the calculation unit 42.
  • the resolution of the image sensor 20 is 300 DPI.
  • the corresponding part in the area without cracks is C
  • the position corresponding to the crack is D
  • the data storage unit 41 has a first memory 411 and a second memory 412.
  • the first memory 411 records the brightness level line initially collected by the image sensor 20, and the second memory 412 records the image sensor 20 except
  • the calculation unit 42 performs a differential calculation on the brightness level lines of the first memory 411 and the second memory 412 to obtain the width change data of the crack at the current position to be detected.
  • the calculation unit 42 perform differential calculation of the data transmitted by the image sensor 20.
  • the calculation process by comparing the brightness level line collected by the image sensor 20 each time with the brightness level line collected for the first time, it can be obtained The change value between the real-time width of the crack and the initial width.
  • the manner in which the second memory 412 stores data may be to store all the data, or to overwrite the previous data with the most recently collected data.
  • the output device 50 includes a wireless control unit 51, and the wireless control unit 51 receives and transmits crack width change data.
  • the wireless control unit 51 receives and transmits crack width change data.
  • the wireless control unit 51 includes a wireless network 511, a wireless control body 512, and an antenna 513.
  • the wireless control body 512 receives the data of the width change of the crack;
  • the antenna 513 is connected to the wireless control body 512, and the antenna 513 transmits the data of the width change of the crack to the outside through the wireless network 511.
  • the selected wireless network 511 is a low-power wide-area wireless network 511.
  • the output device 50 further includes a database 52.
  • the database 52 stores the crack width variation data sent by the wireless control unit 51; the computer terminal 53 analyzes the crack width variation data, and when the crack width variation data in the database 52 exceeds the warning value, the computer terminal 53 issues a prompt.
  • the database 52 receives the crack width change data sent by the wireless control unit 51, the data can be stored.
  • the computer terminal 53 is set, the information in the database 52 can be analyzed and monitored through the computer terminal 53.
  • the computer terminal 53 includes at least one of a display, a buzzer and an alarm indicator.
  • the crack change monitoring method includes: fixing the crack change monitoring device on the crack before monitoring the crack.
  • the detection surface of the box 10 of the crack change monitoring device is attached to the wall surface, and the scanning path of the image sensor 20 of the crack change monitoring device is perpendicular to the extension direction of the crack; the power is turned on, and the crack changes
  • the monitoring device automatically performs the initialization setting process, and transfers the pre-set clock frequency, line scan period, number of scans, turn-on time of the light source 30, and related parameters of the image sensor 20 into the corresponding internal registers of the image sensor 20 to complete Initialization setting; the crack change monitoring device performs the initial value test stage of the crack, and the image sensor 20 is activated, so that the image sensor 20 scans the width of the crack according to the preset conditions, and the result is stored in the crack change monitoring part 40 of the crack change monitoring device The image sensor 20 continues to scan the width of the crack and saves the result in the second
  • the crack change monitoring device can establish communication with the computer terminal 53, and first send the code of the output device 50 of the crack change monitoring device to the computer terminal 53, and the computer terminal 53 receives the crack change monitoring After the code of the device, a confirmation message will be returned to the crack change monitoring device, and the output device 50 will send the initial data of the crack to the computer terminal 53 after receiving the confirmation message.
  • the crack change monitoring device enters the normal operating procedure.
  • the crack change monitoring device enters the standby state, some functions of the crack change monitoring device will automatically power off, and the clock unit of the crack change monitoring unit 40 automatically enters the timing state, reaching the first 3.
  • the entire crack change monitoring device is restored to the working state, the image sensor 20 scans, and the scan data is stored in the second memory 412.
  • the computer terminal 53 determines that the transmitted data is abnormal, it can call the crack change monitoring device at any time. After the crack change monitoring device receives the call signal, it will return to working state again, and measure the width of the crack again, and send the measurement result again. To the computer terminal 53.
  • the staff does not need to make a special trip to the concrete building site regularly, but can also regularly understand the crack change status;

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Abstract

A crack change monitoring device and a crack change monitoring method. The crack change monitoring device comprises: a box body (10), the box body (10) having a detection surface, and the detection surface being provided, in a fitted manner, at the position to be detected; a fixing structure, the box body (10) being mounted, by means of the fixing structure, at the position to be detected and remaining stationary; at least one image sensor (20), the image sensor (20) being provided in the box body (10), and a detection end of the image sensor (20) being provided facing the detection surface; a light source (30), the light source (30) being provided in the box body (10) and being provided facing the detection surface; a crack change monitoring unit (40), the crack change monitoring unit (40) being connected to the image sensor (20); and an output device (50), the output device (50) being connected to the crack change monitoring unit (40), so as to perform an output by means of at least one of displaying, storing records and issuing an alarm. The invention solves the problem in the prior art that it is difficult for a crack change monitoring device to continuously monitor the same position.

Description

裂缝变化监测装置及裂缝变化监测方法Crack change monitoring device and crack change monitoring method 技术领域Technical field
本发明涉及裂缝检测设备领域，具体而言，涉及一种裂缝变化监测装置及裂缝变化监测方法。The invention relates to the field of crack detection equipment, in particular to a crack change monitoring device and a crack change monitoring method.
背景技术Background technique
混凝土作为楼房、铁桥、隧道等各种混凝土建筑物使用的材料，应用越来越广泛。但随着混凝土使用年限的增加，会产生裂缝，并且裂缝中会渗入雨水使墙体更加恶化导致建筑物强度降低。为此必须对建筑物进行维护，何时进行维护需要经常对裂缝的状态进行把握。As a material used in various concrete buildings such as buildings, iron bridges, tunnels, etc., concrete has become more and more widely used. However, as the service life of concrete increases, cracks will occur, and rainwater will seep into the cracks to make the wall worse and reduce the strength of the building. For this reason, the building must be maintained. When to perform maintenance, it is necessary to constantly grasp the state of the cracks.
目前在对混凝土上的裂缝进行检查时，作业人员需要现场使用刻度尺直接测量裂缝的宽度或者使用数字相机对裂缝进行现场拍照，之后将测量结果带回管理中心进行分析再确定是否需要进行相应的维护。At present, when inspecting cracks on concrete, operators need to use a scale to directly measure the width of the cracks or use a digital camera to take pictures of the cracks on the spot, and then bring the measurement results back to the management center for analysis and then determine whether the corresponding measures are needed maintain.
目前的检测手段是在拍撮墙面裂缝时墙面裂缝所处的状态，而建筑物是否到了需要维护的状态，需要定期地到现场进行测量，执行起来非常麻烦。另外，不管哪个装置，很难在同一位置对墙面裂缝进行测量，不能准确断定裂缝状态是如何变化的及是否需要继续测量。The current detection method is to capture the state of the wall crack when the wall crack is in, and whether the building is in a state that needs maintenance, it needs to be measured on the spot regularly, which is very troublesome to implement. In addition, no matter which device, it is difficult to measure wall cracks at the same location, and it is impossible to accurately determine how the crack state changes and whether it is necessary to continue measuring.
由上述可知现有技术中存在裂缝变化监测装置难以持续对同一位置进行监测的问题。It can be seen from the above that there is a problem in the prior art that it is difficult for the crack change monitoring device to continuously monitor the same location.
发明内容Summary of the invention
本发明的主要目的在于提供一种裂缝变化监测装置及裂缝变化监测方法，以解决现有技术中裂缝变化监测装置难以持续对同一位置进行监测的问题。The main purpose of the present invention is to provide a crack change monitoring device and a crack change monitoring method to solve the problem that the crack change monitoring device in the prior art is difficult to continuously monitor the same location.
为了实现上述目的，根据本发明的一个方面，提供了一种裂缝变化监测装置，包括：箱体，箱体具有检测面，检测面贴合设置在待检测位置处；固定结构，箱体通过固定结构安装在待检测位置处且保持固定不动；至少一个图像传感器，图像传感器设置在箱体内且图像传感器的检测端朝向检测面设置；光源，光源设置在箱体内且朝向检测面设置，光源为多个，且图像传感器的上下两侧分别至少设置有一个光源，光源照射待检测位置处的墙面和裂缝，图像传感器采集墙面和裂缝处的亮度等级线；裂缝变化监测部，裂缝变化监测部与图像传感器连接，裂缝变化监测部根据第一预设时间间隔接收图像传感器采集到的亮度等级线并进行存储，且根据第二预设时间间隔将前后任意两组亮度等级线进线比较以得到待检测位置处的裂缝的宽度变化数据；输出装置，输出装置与裂缝变化监测部连接，以通过显示、存储记录、报警的至少一种方式进行输出。In order to achieve the above objective, according to one aspect of the present invention, a crack change monitoring device is provided, which includes: a box body with a detection surface, the detection surface is arranged in close contact with the position to be detected; a fixed structure, the box body is fixed by The structure is installed at the position to be detected and kept fixed; at least one image sensor, the image sensor is set in the box and the detection end of the image sensor is set toward the detection surface; the light source, the light source is set in the box and is set toward the detection surface, the light source is Multiple, and at least one light source is provided on the upper and lower sides of the image sensor, the light source illuminates the wall and the crack at the position to be detected, the image sensor collects the brightness level line of the wall and the crack; the crack change monitoring department, the crack change monitoring The section is connected with the image sensor, the crack change monitoring section receives and stores the brightness level line collected by the image sensor according to the first preset time interval, and compares any two groups of brightness level lines before and after the second preset time interval. Obtain the width change data of the crack at the position to be detected; an output device, which is connected to the crack change monitoring part, and outputs by at least one of display, storage record, and alarm.
进一步地，箱体沿横向分为动力区和检测区，检测区包括采集区和处理区，且处理区位于采集区的上方或下方；图像传感器和光源位于采集区，裂缝变化监测部位于处理区，裂缝 变化监测装置包括蓄电池组，蓄电池组位于动力区并给图像传感器、光源和裂缝变化监测部供电。Further, the box is divided into a power area and a detection area along the lateral direction. The detection area includes a collection area and a processing area, and the processing area is located above or below the collection area; the image sensor and light source are located in the collection area, and the crack change monitoring part is located in the processing area. , The crack change monitoring device includes a battery pack, which is located in the power zone and supplies power to the image sensor, light source and crack change monitoring unit.
进一步地，裂缝变化监测装置还包括开关电路，蓄电池组给开关电路供电，图像传感器、光源、裂缝变化监测部和输出装置与开关电路连接，开关电路根据第三预设时间控制裂缝变化监测装置的启动或停机。Further, the crack change monitoring device further includes a switch circuit, the battery pack supplies power to the switch circuit, the image sensor, the light source, the crack change monitoring part and the output device are connected with the switch circuit, and the switch circuit controls the crack change monitoring device according to the third preset time. Start or stop.
进一步地，图像传感器和光源均为多个，且多个图像传感器和多个光源依次交替排列设置，多个图像传感器分别与裂缝变化监测部连接。Further, there are multiple image sensors and light sources, and the multiple image sensors and multiple light sources are arranged alternately in sequence, and the multiple image sensors are respectively connected to the crack change monitoring part.
进一步地，图像传感器的分辨率大于等于200DPI。Further, the resolution of the image sensor is greater than or equal to 200 DPI.
进一步地，光源是LED光源，LED光源发射可见光和/或不可见光。Further, the light source is an LED light source, and the LED light source emits visible light and/or invisible light.
进一步地，多个行扫描周期内图像传感器采集到的与时钟信号同步的扫描路径的亮度值变化形成亮度等级线。Further, the brightness value changes of the scanning path synchronized with the clock signal collected by the image sensor in the multiple line scanning periods form a brightness level line.
进一步地，裂缝变化监测部包括时钟单元，通过时钟单元设定第一预设时间和第二预设时间并计时；数据存储单元，接收图像传感器采集到的亮度等级线并进行存储；演算单元，演算单元对前后任意两组采集的亮度等级线进行差分计算，以得到待检测位置处的裂缝的宽度变化数据。Further, the crack change monitoring unit includes a clock unit, through which the first preset time and the second preset time are set and timed; a data storage unit, which receives and stores the brightness level line collected by the image sensor; and a calculation unit, The calculation unit performs differential calculation on any two sets of collected brightness level lines before and after to obtain the width change data of the crack at the position to be detected.
进一步地，数据存储单元包括第一存贮器和第二存贮器，第一存贮器记录图像传感器初次采集的亮度等级线，第二存贮器记录图像传感器除初次以外每次采集的亮度等级线，演算单元对第一存贮器和第二存贮器的亮度等级线进行差分计算，以得到当前待检测位置处的裂缝的宽度变化数据。Further, the data storage unit includes a first memory and a second memory. The first memory records the brightness level line collected by the image sensor for the first time, and the second memory records the brightness level collected by the image sensor every time except for the first time. For the level line, the calculation unit performs a differential calculation on the brightness level line of the first memory and the second memory to obtain the width change data of the crack at the current position to be detected.
进一步地，输出装置包括无线控制部，无线控制部接收并发送裂缝的宽度变化数据。Further, the output device includes a wireless control unit, and the wireless control unit receives and transmits the width change data of the crack.
进一步地，无线控制部包括：无线网络；无线控制本体，无线控制本体接收裂缝的宽度变化的数据；天线，天线与无线控制本体连接，并且天线通过无线网络将裂缝的宽度变化数据向外发送。Further, the wireless control unit includes: a wireless network; a wireless control body that receives data of the width change of the crack; an antenna, the antenna is connected to the wireless control body, and the antenna sends the data of the width change of the crack to the outside through the wireless network.
进一步地，输出装置还包括：数据库，数据库存储无线控制部发送的裂缝的宽度变化数据；电脑终端对裂缝的宽度变化数据进行分析，当数据库中的裂缝的宽度变化数据超出预警值时，电脑终端发出提示。Further, the output device further includes: a database, which stores the crack width change data sent by the wireless control unit; the computer terminal analyzes the crack width change data, and when the crack width change data in the database exceeds the warning value, the computer terminal Issue a reminder.
进一步地，电脑终端包括显示器、蜂鸣报警器和报警指示灯中的至少一种。Further, the computer terminal includes at least one of a display, a buzzer and an alarm indicator.
根据本发明的另一方面，提供了一种裂缝变化监测方法，采用上述的裂缝变化监测装置对裂缝进行监测，裂缝变化监测方法包括：在对裂缝进行监测前，将裂缝变化监测装置固定在裂缝所在的墙面上，并使裂缝变化监测装置的箱体的检测面贴合在墙面上，且使裂缝变化监测装置的图像传感器的扫描路径垂直于裂缝的延伸方向；开启电源，裂缝变化监测装置自动进行初始化设置过程，将预先设定好的时钟频率、行扫描周期、扫描次数、光源的开启时间以及图像传感器的相关参数调入到图像传感器的内部相应的寄存器中，完成初始化设置； 裂缝变化监测装置进行裂缝的初期值测试阶段，启动图像传感器，使图像传感器按预设条件对裂缝的宽度进行扫描，并将结果保存于裂缝变化监测装置的裂缝变化监测部的第一存贮器中；图像传感器继续对裂缝的宽度进行扫描，并将结果保存于裂缝变化监测部的第二存贮器中；裂缝变化监测部的演算单元对第二存贮器和第一存贮器中保存的数据进行演算，并将结果发给电脑终端，而后裂缝变化监测装置再次进行到待机状态。According to another aspect of the present invention, there is provided a crack change monitoring method, which adopts the above-mentioned crack change monitoring device to monitor cracks. The crack change monitoring method includes: fixing the crack change monitoring device on the crack before monitoring the crack. On the wall where the crack change monitoring device is located, the detection surface of the box body of the crack change monitoring device is attached to the wall, and the scanning path of the image sensor of the crack change monitoring device is perpendicular to the extension direction of the crack; turn on the power to monitor the crack change The device automatically performs the initialization setting process, and transfers the pre-set clock frequency, line scan period, scan times, light source turn-on time, and image sensor related parameters into the corresponding internal registers of the image sensor to complete the initialization setting; The change monitoring device performs the initial value test stage of the crack, and the image sensor is activated, so that the image sensor scans the width of the crack according to the preset conditions, and the result is stored in the first memory of the crack change monitoring part of the crack change monitoring device ; The image sensor continues to scan the width of the crack and saves the result in the second memory of the crack change monitoring part; the calculation unit of the crack change monitoring part saves the information in the second memory and the first memory The data is calculated and the result is sent to the computer terminal, and then the crack change monitoring device goes to the standby state again.
进一步地，裂缝的初始宽度测量完成后，裂缝变化监测装置可与电脑终端建立通信联络，首先将裂缝变化监测装置的输出装置的代码发给电脑终端，电脑终端收到裂缝变化监测装置的代码后会给裂缝变化监测装置回复一个确认信息，收到确认信息后输出装置再将裂缝的初始数据发给电脑终端。Further, after the initial width of the crack is measured, the crack change monitoring device can establish communication with the computer terminal. First, the code of the output device of the crack change monitoring device is sent to the computer terminal. After the computer terminal receives the code of the crack change monitoring device A confirmation message will be returned to the crack change monitoring device, and the output device will send the initial crack data to the computer terminal after receiving the confirmation message.
进一步地，裂缝变化监测装置进入常规作业程序中，首先，裂缝变化监测装置进入待机状态，裂缝变化监测装置的部分功能会自动断电，裂缝变化监测部的时钟单元自动进入计时状态，达到第三预设时间间隔后，整个裂缝变化监测装置恢复到工作状态，图像传感器进行扫描，并将扫描数据贮存到第二存贮器中。Furthermore, the crack change monitoring device enters the normal operation procedure. First, the crack change monitoring device enters the standby state, some functions of the crack change monitoring device will automatically power off, and the clock unit of the crack change monitoring department automatically enters the timing state, reaching the third After the preset time interval, the entire crack change monitoring device is restored to the working state, the image sensor scans, and the scan data is stored in the second memory.
进一步地，如果电脑终端判断发送数据异常，可以随时呼叫裂缝变化监测装置，裂缝变化监测装置收到呼叫信号后会再次恢复到工作状态，并再次进行裂缝的宽度测量，并将测量结果再次发给电脑终端。Further, if the computer terminal judges that the sent data is abnormal, it can call the crack change monitoring device at any time. After the crack change monitoring device receives the call signal, it will return to the working state, and measure the width of the crack again, and send the measurement result to Computer terminal.
应用本发明的技术方案，本申请中的裂缝变化监测装置包括箱体、固定结构、至少一个图像传感器、光源、裂缝变化监测部和输出装置。箱体具有检测面，检测面贴合设置在待检测位置处；箱体通过固定结构安装在待检测位置处且保持固定不动；图像传感器设置在箱体内且图像传感器的检测端朝向检测面设置；光源设置在箱体内且朝向检测面设置，光源为多个，且图像传感器的上下两侧分别至少设置有一个光源，光源照射待检测位置处的墙面和裂缝，图像传感器采集墙面和裂缝处的亮度等级线；裂缝变化监测部与图像传感器连接，裂缝变化监测部根据第一预设时间间隔接收图像传感器采集到的亮度等级线并进行存储，且根据第二预设时间间隔将前后任意两组亮度等级线进线比较以得到待检测位置处的裂缝的宽度变化数据；输出装置与裂缝变化监测部连接，以通过显示、存储记录、报警的至少一种方式进行输出。Applying the technical solution of the present invention, the crack change monitoring device in this application includes a box, a fixed structure, at least one image sensor, a light source, a crack change monitoring part, and an output device. The box has a detection surface, and the detection surface is set at the position to be detected. The box is installed at the position to be detected by a fixed structure and kept fixed; the image sensor is installed in the box and the detection end of the image sensor is set toward the detection surface The light source is arranged in the box and facing the detection surface. There are multiple light sources, and at least one light source is arranged on the upper and lower sides of the image sensor. The light source illuminates the wall and the crack at the position to be detected, and the image sensor collects the wall and the crack The brightness level line at the location; the crack change monitoring part is connected with the image sensor, and the crack change monitoring part receives the brightness level line collected by the image sensor according to the first preset time interval and stores it, and according to the second preset time interval The two sets of brightness level lines are compared to obtain the width change data of the crack at the position to be detected; the output device is connected with the crack change monitoring part to output by at least one of displaying, storing records, and alarming.
使用上述结构的裂缝变化监测装置时，通过使用光源对待检测位置进行照射，并通过图像传感器对待检测位置进行图像获取，能够向裂缝变化监测部发送待检测位置的亮度等级线，裂缝变化监测部在接收到亮度等级线后，能够对两组不同亮度等级线进行存储并处理，同时计算出对应时间间隔内裂缝的同一位置的宽度变化。另外，裂缝变化监测部还能够在计算完成后，将计算得出的数据发送至输出装置，当输出装置接收到的数据超过设定值时，便能够向工作人员发出提醒。又由于裂缝变化监测装置还具有箱体和固定结构，所以裂缝变化监测装置中的图像传感器、光源、裂缝变化监测部等结构可以设置在箱体内部，并通过固定结构固定在待检测位置处，从而能够长期多次对裂缝的同一位置进行检测。When the crack change monitoring device with the above structure is used, the light source is used to illuminate the position to be detected, and the image sensor is used to obtain the image of the position to be detected. The brightness level line of the position to be detected can be sent to the crack change monitoring section. After receiving the brightness level line, the two sets of different brightness level lines can be stored and processed, and the width change of the crack at the same position in the corresponding time interval can be calculated. In addition, the crack change monitoring unit can also send the calculated data to the output device after the calculation is completed, and when the data received by the output device exceeds the set value, it can send a reminder to the staff. Since the crack change monitoring device also has a box and a fixed structure, the image sensor, light source, and crack change monitoring part in the crack change monitoring device can be set inside the box and fixed at the position to be detected through the fixed structure. Therefore, the same position of the crack can be detected multiple times over a long period of time.
附图说明Description of the drawings
构成本申请的一部分的说明书附图用来提供对本发明的进一步理解，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：The accompanying drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments and descriptions of the present invention are used to explain the present invention, and do not constitute an improper limitation of the present invention. In the attached picture:
图1示出了根据本发明的一个具体实施例的裂缝变化监测装置的结构示意图；Figure 1 shows a schematic structural diagram of a crack change monitoring device according to a specific embodiment of the present invention;
图2示出了待检测墙面的结构示意图；Figure 2 shows a schematic diagram of the structure of the wall to be tested;
图3示出了对图2中的裂缝进行检测后得到的动作说明时序图；FIG. 3 shows a timing diagram of the action description obtained after detecting the crack in FIG. 2;
图4示出了图2中的裂缝变宽后的结构示意图；FIG. 4 shows a schematic diagram of the structure after the crack in FIG. 2 is widened;
图5示出了对图4中的裂缝进行检测后得到的动作说明时序图；FIG. 5 shows a timing diagram of the action description obtained after detecting the crack in FIG. 4;
图6示出了对图3和图5中的动作说明时序图进行差分计算后得到的动作说明时序图；FIG. 6 shows an action explanation timing diagram obtained after differential calculations are performed on the action explanation timing diagrams in FIGS. 3 and 5;
图7示出了图1中的裂缝变化监测装置的局部立体图；Figure 7 shows a partial perspective view of the crack change monitoring device in Figure 1;
图8示出了图1中的裂缝变化监测装置的箱体安装在钢筋混凝土上的示意图；Figure 8 shows a schematic diagram of the case of the crack change monitoring device in Figure 1 installed on reinforced concrete;
图9示出了图1中的裂缝变化监测装置的箱体安装在桥桁时的示意图；FIG. 9 shows a schematic diagram of the case of the crack change monitoring device in FIG. 1 when installed on a bridge truss;
图10示出了本发明的另一个实施例中当图像传感器和光源均为多个时的分布示意图；FIG. 10 shows a schematic diagram of distribution when there are multiple image sensors and light sources in another embodiment of the present invention;
图11示出了适用图10中的裂缝变化监测装置的待检测墙面的示意图。FIG. 11 shows a schematic diagram of a wall to be detected to which the crack change monitoring device in FIG. 10 is applied.
其中，上述附图包括以下附图标记：Among them, the above drawings include the following reference signs:
10、箱体；20、图像传感器；30、光源；40、裂缝变化监测部；41、数据存储单元；411、第一存贮器；412、第二存贮器；42、演算单元；43、蓄电池组；50、输出装置；51、无线控制部；511、无线网络；512、无线控制本体；513、天线；52、数据库；53、电脑终端。10. Box; 20. Image sensor; 30. Light source; 40. Crack change monitoring unit; 41. Data storage unit; 411. First storage; 412. Second storage; 42, calculation unit; 43. Battery pack; 50. Output device; 51. Wireless control unit; 511. Wireless network; 512. Wireless control body; 513. Antenna; 52. Database; 53, Computer terminal.
具体实施方式detailed description
需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。下面将参考附图并结合实施例来详细说明本发明。It should be noted that the embodiments in this application and the features in the embodiments can be combined with each other if there is no conflict. Hereinafter, the present invention will be described in detail with reference to the drawings and in conjunction with the embodiments.
需要指出的是，除非另有指明，本申请使用的所有技术和科学术语具有与本申请所属技术领域的普通技术人员通常理解的相同含义。It should be pointed out that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs.
在本发明中，在未作相反说明的情况下，使用的方位词如“上、下、顶、底”通常是针对附图所示的方向而言的，或者是针对部件本身在竖直、垂直或重力方向上而言的；同样地，为便于理解和描述，“内、外”是指相对于各部件本身的轮廓的内、外，但上述方位词并不用于限制本发明。In the present invention, if there is no explanation to the contrary, the directional words used such as "up, down, top, bottom" are usually directed to the direction shown in the drawings, or refer to the vertical, In terms of vertical or gravitational direction; similarly, for ease of understanding and description, "inner and outer" refers to the inner and outer relative to the contour of each component itself, but the above-mentioned orientation words are not used to limit the present invention.
为了解决现有技术中裂缝变化监测装置难以持续对同一位置进行监测的问题，本申请提供了一种裂缝变化监测装置及裂缝变化监测方法。In order to solve the problem that the crack change monitoring device in the prior art is difficult to continuously monitor the same location, the present application provides a crack change monitoring device and a crack change monitoring method.
如图1和图7所示，本申请中的裂缝变化监测装置包括：箱体10、固定结构、至少一个图像传感器20、光源30、裂缝变化监测部40和输出装置50。箱体10具有检测面，检测面贴合设置在待检测位置处；箱体10通过固定结构安装在待检测位置处且保持固定不动；图像传感器20设置在箱体10内且图像传感器20的检测端朝向检测面设置；光源30设置在箱体10内且朝向检测面设置，光源30为多个，且图像传感器20的上下两侧分别至少设置有一个光源30，光源30照射待检测位置处的墙面和裂缝，图像传感器20采集墙面和裂缝处的亮度等级线；裂缝变化监测部40与图像传感器20连接，裂缝变化监测部40根据第一预设时间间隔接收图像传感器20采集到的亮度等级线并进行存储，且根据第二预设时间间隔将前后任意两组亮度等级线进线比较以得到待检测位置处的裂缝的宽度变化数据；输出装置50与裂缝变化监测部40连接，以通过显示、存储记录、报警的至少一种方式进行输出。As shown in FIGS. 1 and 7, the crack change monitoring device in the present application includes: a box 10, a fixed structure, at least one image sensor 20, a light source 30, a crack change monitoring unit 40 and an output device 50. The box body 10 has a detection surface, and the detection surface is arranged at the position to be detected. The box body 10 is installed at the position to be detected through a fixed structure and kept fixed; the image sensor 20 is arranged in the box body 10 and the image sensor 20 The detection end is arranged towards the detection surface; the light source 30 is arranged in the box 10 and towards the detection surface. There are multiple light sources 30, and at least one light source 30 is respectively arranged on the upper and lower sides of the image sensor 20. The light source 30 illuminates the position to be detected The image sensor 20 collects the brightness level lines of the wall and the cracks; the crack change monitoring part 40 is connected to the image sensor 20, and the crack change monitoring part 40 receives the information collected by the image sensor 20 according to the first preset time interval The brightness level line is stored, and any two groups of brightness level lines before and after are compared according to the second preset time interval to obtain the width change data of the crack at the position to be detected; the output device 50 is connected to the crack change monitoring part 40, Output in at least one way of displaying, storing records, and alarming.
使用上述结构的裂缝变化监测装置时，通过使用光源30对待检测位置进行照射，并通过图像传感器20对待检测位置进行图像获取，能够向裂缝变化监测部40发送待检测位置的亮度等级线，裂缝变化监测部40在接收到亮度等级线后，能够对两组不同亮度等级线进行存储并处理，同时计算出对应时间间隔内裂缝的同一位置的宽度变化。另外，裂缝变化监测部40还能够在计算完成后，将计算得出的数据发送至输出装置50，当输出装置50接收到的数据超过设定值时，便能够向工作人员发出提醒。又由于裂缝变化监测装置还具有箱体10和固定结构，所以裂缝变化监测装置中的图像传感器20、光源30、裂缝变化监测部40等结构可以设置在箱体10内部，并通过固定结构固定在待检测位置处，从而能够长期多次对裂缝的同一位置进行检测。When the crack change monitoring device of the above structure is used, the light source 30 is used to illuminate the position to be detected, and the image sensor 20 is used to obtain the image of the position to be detected. The brightness level line of the position to be detected can be sent to the crack change monitoring unit 40, and the crack change After receiving the brightness level line, the monitoring unit 40 can store and process the two sets of different brightness level lines, and at the same time calculate the width change of the crack at the same position in the corresponding time interval. In addition, the crack change monitoring unit 40 can also send the calculated data to the output device 50 after the calculation is completed. When the data received by the output device 50 exceeds the set value, it can send a reminder to the staff. Since the crack change monitoring device also has a box body 10 and a fixed structure, the image sensor 20, light source 30, and crack change monitoring part 40 in the crack change monitoring device can be arranged inside the box body 10 and fixed in the box body 10 through the fixed structure. At the position to be inspected, the same position of the crack can be inspected multiple times over a long period of time.
在一个具体的实施例中，选用的箱体10的尺寸可以达到10cm横*5cm纵*3cm高。In a specific embodiment, the size of the selected box body 10 can reach 10 cm wide * 5 cm long * 3 cm high.
如图7所示，箱体10沿横向分为动力区和检测区，检测区包括采集区和处理区，且处理区位于采集区的上方或下方；图像传感器20和光源30位于采集区，裂缝变化监测部40位于处理区，裂缝变化监测装置包括蓄电池组43，蓄电池组43位于动力区并给图像传感器20、光源30和裂缝变化监测部40供电。通过这样设置，能够使得箱体10内部的结构更加紧凑，从而可以保证箱体10可以更加小型化。进而能够使裂缝变化监测装置可以在楼房、高速公路、桥梁及隧道的墙面上方便地进行多处安装。As shown in Figure 7, the box body 10 is divided into a power zone and a detection zone along the lateral direction. The detection zone includes a collection zone and a processing zone, and the processing zone is located above or below the collection zone; the image sensor 20 and the light source 30 are located in the collection zone, The change monitoring unit 40 is located in the processing area, and the crack change monitoring device includes a battery pack 43 that is located in the power area and supplies power to the image sensor 20, the light source 30 and the crack change monitoring unit 40. Through this arrangement, the internal structure of the box 10 can be made more compact, so that the box 10 can be more compact. Furthermore, the crack change monitoring device can be conveniently installed in multiple places on the walls of buildings, highways, bridges and tunnels.
如图8所示，是裂缝变化监测装置安装在钢筋混凝土上的安装示意图，通过胶或在钢筋混凝土上打上膨胀丝等常用方法牢固地固定。另外，在箱体的周围可以用屏蔽材料进行覆盖，防止外界光照和雨水侵扰，确保裂缝变化监测装置可以长期使用。如图9所示，是用同样的方法将裂缝变化监测装置安装在高速公路或铁桥的桥桁上的安装示意图。As shown in Figure 8, it is a schematic diagram of the installation of the crack change monitoring device on reinforced concrete, which is firmly fixed by common methods such as glue or expansion wire on the reinforced concrete. In addition, shielding materials can be used to cover the surroundings of the box to prevent external light and rain from intruding and to ensure that the crack change monitoring device can be used for a long time. As shown in Figure 9, it is a schematic diagram of the installation of the crack change monitoring device on the truss of a highway or an iron bridge using the same method.
可选地，裂缝变化监测装置还包括开关电路，蓄电池组43给开关电路供电，图像传感器20、光源30、裂缝变化监测部40和输出装置50与开关电路连接，开关电路根据第三预设时间控制裂缝变化监测装置的启动或停机。通过这样设置，能够在非测量时间段内，停止蓄电池组43对图像传感器20、光源30、裂缝变化监测部40和输出装置50的电力供给，从而增加蓄电池组43的使用时限。Optionally, the crack change monitoring device further includes a switch circuit, the battery pack 43 supplies power to the switch circuit, the image sensor 20, the light source 30, the crack change monitoring unit 40 and the output device 50 are connected to the switch circuit, and the switch circuit is based on the third preset time. Control the start or stop of the crack change monitoring device. With this arrangement, the power supply of the battery pack 43 to the image sensor 20, the light source 30, the crack change monitoring unit 40, and the output device 50 can be stopped during the non-measurement time period, thereby increasing the service time limit of the battery pack 43.
可选地，图像传感器20和光源30均为多个，且多个图像传感器20和多个光源30依次交替排列设置，多个图像传感器20分别与裂缝变化监测部40连接。通过这样设置，可以对墙面裂缝的多个位置进行同时监测，进而可以使裂缝变化监测装置可以监测到更加详细的裂缝变化信息。Optionally, there are multiple image sensors 20 and multiple light sources 30, and multiple image sensors 20 and multiple light sources 30 are arranged alternately in sequence, and multiple image sensors 20 are respectively connected to the crack change monitoring part 40. With this arrangement, multiple locations of wall cracks can be monitored simultaneously, and the crack change monitoring device can monitor more detailed crack change information.
如图10所示，此时的图像传感器20为三个。相应地，如图11所示，当图像传感器为三个时，可以对同一墙面112的裂缝113的三个不同位置(及三条不同的裂缝读取线908、909和910)进行监测。As shown in FIG. 10, there are three image sensors 20 at this time. Correspondingly, as shown in FIG. 11, when there are three image sensors, three different positions of the crack 113 (and three different crack reading lines 908, 909, and 910) of the same wall 112 can be monitored.
具体地，图像传感器20的分辨率大于等于200DPI。在常用的监测要求中，要求0.2毫米以上的裂缝要定期点检记录，作为管理计划的基本数据。而要检测出0.2毫米以上的裂缝，需要的图像分辨率至少在127DPI以上，因此在本申请中，选用比较常用的200DPI以上分辨率的接触式图像传感器20。Specifically, the resolution of the image sensor 20 is greater than or equal to 200 DPI. Among the commonly used monitoring requirements, cracks above 0.2 mm are required to be regularly inspected and recorded as the basic data of the management plan. In order to detect cracks larger than 0.2 mm, the required image resolution is at least 127 DPI or higher. Therefore, in this application, a commonly used contact image sensor 20 with a resolution of 200 DPI or higher is selected.
可选地，光源30是LED光源，LED光源发射可见光和/或不可见光。在通常的监测过程中，可以选择波长在可见光带域的LED光源，例如红光、绿光、蓝光等。而在某些特殊的场合下使用红外光、紫外光的LED光源可以更加强袭的读取裂缝沟槽的详细状态。Optionally, the light source 30 is an LED light source, and the LED light source emits visible light and/or invisible light. In the usual monitoring process, you can choose an LED light source with a wavelength in the visible light band, such as red light, green light, and blue light. In some special occasions, infrared and ultraviolet LED light sources can be used to read the detailed status of the crack groove more intensified.
具体地，多个行扫描周期内图像传感器20采集到的与时钟信号同步的扫描路径的亮度值变化形成亮度等级线。Specifically, the brightness value changes of the scan path synchronized with the clock signal collected by the image sensor 20 in the multiple line scan periods form a brightness level line.
如图3和图5所示，是图像传感器20的动作说明时序图，包括时钟信号201和行周期信号202，其中行周期信号202包括两次行扫描周期。当然，行周期信号202还可以包括多次扫描，扫描的次数由得到的数据的一致性决定。图像传感器20通过将与时钟信号201同步的模拟信号转换成数字信号，通过数字信号可以输出亮度等级线(即图3中的203和图5中的403)，其中亮度等级总共包括256级，并通过与暗输出图205(亮度等级为0)和明输出图204(亮度等级为255)进行对比，能够得出裂缝在亮度等级线中对应的位置。在图2和图4中，一次行扫描周期即代表对裂缝读取线115进行一次扫描，其中墙面112的裂缝(及图2中的113和图4中的301)会随时间的变化而变化。As shown in FIGS. 3 and 5, it is a timing diagram illustrating the operation of the image sensor 20, which includes a clock signal 201 and a line period signal 202, where the line period signal 202 includes two horizontal scanning periods. Of course, the line period signal 202 may also include multiple scans, and the number of scans is determined by the consistency of the obtained data. The image sensor 20 converts an analog signal synchronized with the clock signal 201 into a digital signal, and can output a brightness level line (ie 203 in FIG. 3 and 403 in FIG. 5) through the digital signal, wherein the brightness level includes a total of 256 levels, and By comparing with the dark output map 205 (brightness level is 0) and the bright output map 204 (brightness level is 255), the corresponding position of the crack in the brightness level line can be obtained. In FIGS. 2 and 4, one line scan cycle represents one scan of the crack reading line 115, where the cracks on the wall 112 (and 113 in FIG. 2 and 301 in FIG. 4) will change with time. Variety.
如图3和图5所示，A是没有裂缝的墙面部分，B是墙面中对应的裂缝部分。As shown in Figures 3 and 5, A is the wall part without cracks, and B is the corresponding crack part in the wall.
在对裂缝宽度进行计算时，若使用分辨率为300DPI的图像传感器20，一个像素的宽度为0.085毫米，若裂缝在亮度等级线中对应的宽度为3个时钟信号，即三个像素。因此能够计算出裂缝的宽度为0.085mm*3＝0.255mm。When calculating the crack width, if the image sensor 20 with a resolution of 300 DPI is used, the width of one pixel is 0.085 mm, and if the crack corresponds to the width in the brightness level line is 3 clock signals, that is, 3 pixels. Therefore, the width of the crack can be calculated to be 0.085mm*3=0.255mm.
具体地，裂缝变化监测部40包括时钟单元，数据存储单元41和演算单元42。通过时钟单元设定第一预设时间和第二预设时间并计时；接收图像传感器20采集到的亮度等级线并进行存储；演算单元42对前后任意两组采集的亮度等级线进行差分计算，以得到待检测位置处的裂缝的宽度变化数据。通过这样设置，数据存储单元41能够对图像传感器20每次输出的数字信号以及亮度等级线进行储存，演算单元42能够对数据存储单元41中的亮度等级线进 行计算，并可通过计算对比任意两次的裂缝宽度值，得到对应时间间隔内的裂缝的宽度变化。通过设置使用单元，能够对裂缝的检测进行控制和计时。Specifically, the crack change monitoring unit 40 includes a clock unit, a data storage unit 41 and a calculation unit 42. The first preset time and the second preset time are set and timed by the clock unit; the brightness level line collected by the image sensor 20 is received and stored; the calculation unit 42 performs differential calculation on any two groups of collected brightness level lines before and after, In order to obtain the width change data of the crack at the position to be detected. With this arrangement, the data storage unit 41 can store the digital signal and the brightness level line output by the image sensor 20 each time, and the calculation unit 42 can calculate the brightness level line in the data storage unit 41, and can compare any two by calculation. The second crack width value, the width change of the crack in the corresponding time interval is obtained. By setting the use unit, the detection of cracks can be controlled and timed.
可选地，在演算单元42中，为了使得到的裂缝的图像更加鲜明清晰，也可以加入一些敏感补正、边缘强化、对比度调整等已知的图像处理技术，从而得到更准确的裂缝计算精度。Optionally, in the calculation unit 42, in order to make the obtained crack image more vivid and clear, some known image processing techniques such as sensitive correction, edge enhancement, and contrast adjustment may also be added to obtain more accurate crack calculation accuracy.
如图6所示，是演算单元42对两次监测数据的对比结果的信号，其中图像传感器20的分辨率为300DPI，在亮度等级线503中，没有裂缝的区域中应的部分为C，而裂缝对应的位置为D，D的宽度对应两个时钟信号，即两个像素，也就是说宽度变化了0.085mm*2＝0.17mm，即在两次采集的时间间隔内，裂缝的宽度变化了0.17mm。As shown in FIG. 6, it is the signal of the comparison result of the two monitoring data by the calculation unit 42. The resolution of the image sensor 20 is 300 DPI. In the brightness level line 503, the corresponding part in the area without cracks is C, and The position corresponding to the crack is D, and the width of D corresponds to two clock signals, that is, two pixels, that is to say, the width changes by 0.085mm*2=0.17mm, that is, the width of the crack changes within the time interval of two acquisitions 0.17mm.
可选地，数据存储单元41第一存贮器411和第二存贮器412，第一存贮器411记录图像传感器20初次采集的亮度等级线，第二存贮器412记录图像传感器20除初次以外每次采集的亮度等级线，演算单元42对第一存贮器411和第二存贮器412的亮度等级线进行差分计算，以得到当前待检测位置处的裂缝的宽度变化数据。通过这样设置，能够方便演算单元42对图像传感器20传送的数据进行差分计算，在计算过程中，通过对图像传感器20每次采集的亮度等级线与初次采集的亮度等级线进行对比，能够得出裂缝的实时宽度与初始宽度之间的变化值。Optionally, the data storage unit 41 has a first memory 411 and a second memory 412. The first memory 411 records the brightness level line initially collected by the image sensor 20, and the second memory 412 records the image sensor 20 except For the brightness level lines collected each time other than the first time, the calculation unit 42 performs a differential calculation on the brightness level lines of the first memory 411 and the second memory 412 to obtain the width change data of the crack at the current position to be detected. Through this setting, it is convenient for the calculation unit 42 to perform differential calculation of the data transmitted by the image sensor 20. In the calculation process, by comparing the brightness level line collected by the image sensor 20 each time with the brightness level line collected for the first time, it can be obtained The change value between the real-time width of the crack and the initial width.
可选地，第二存贮器412存储数据的方式可以是将所有数据全部储存，或者是将最近采集的数据对之前的数据进行覆盖。Optionally, the manner in which the second memory 412 stores data may be to store all the data, or to overwrite the previous data with the most recently collected data.
具体地，输出装置50包括无线控制部51，无线控制部51接收并发送裂缝的宽度变化数据。通过这样设置，在演算单元42完成差分计算后，能够将数据发送至无线控制部51并通过无线控制部51向外发送。Specifically, the output device 50 includes a wireless control unit 51, and the wireless control unit 51 receives and transmits crack width change data. With this arrangement, after the calculation unit 42 completes the difference calculation, the data can be sent to the wireless control unit 51 and sent out through the wireless control unit 51.
具体地，无线控制部51包括无线网络511、无线控制本体512和天线513。无线控制本体512接收裂缝的宽度变化的数据；天线513与无线控制本体512连接，并且天线513通过无线网络511将裂缝的宽度变化数据向外发送。在本申请中，选用的无线网络511为低功耗广域无线网络511。Specifically, the wireless control unit 51 includes a wireless network 511, a wireless control body 512, and an antenna 513. The wireless control body 512 receives the data of the width change of the crack; the antenna 513 is connected to the wireless control body 512, and the antenna 513 transmits the data of the width change of the crack to the outside through the wireless network 511. In this application, the selected wireless network 511 is a low-power wide-area wireless network 511.
具体地，输出装置50还包括数据库52。数据库52存储无线控制部51发送的裂缝的宽度变化数据；电脑终端53对裂缝的宽度变化数据进行分析，当数据库52中的裂缝的宽度变化数据超出预警值时，电脑终端53发出提示。通过这样设置，在数据库52接受到无线控制部51发送的裂缝的宽度变化数据后，可以对数据进行保存。而设置电脑终端53，可以通过电脑终端53对数据库52中的信息进行分析和监测。Specifically, the output device 50 further includes a database 52. The database 52 stores the crack width variation data sent by the wireless control unit 51; the computer terminal 53 analyzes the crack width variation data, and when the crack width variation data in the database 52 exceeds the warning value, the computer terminal 53 issues a prompt. With this arrangement, after the database 52 receives the crack width change data sent by the wireless control unit 51, the data can be stored. When the computer terminal 53 is set, the information in the database 52 can be analyzed and monitored through the computer terminal 53.
可选地，电脑终端53包括显示器、蜂鸣报警器和报警指示灯中的至少一种。Optionally, the computer terminal 53 includes at least one of a display, a buzzer and an alarm indicator.
在本申请中，还提供了一种裂缝变化监测方法，采用下述的裂缝变化监测装置对裂缝进行监测，裂缝变化监测方法包括：在对裂缝进行监测前，将裂缝变化监测装置固定在裂缝所在的墙面上，并使裂缝变化监测装置的箱体10的检测面贴合在墙面上，且使裂缝变化监测装置的图像传感器20的扫描路径垂直于裂缝的延伸方向；开启电源，裂缝变化监测装置自动进 行初始化设置过程，将预先设定好的时钟频率、行扫描周期、扫描次数、光源30的开启时间以及图像传感器20的相关参数调入到图像传感器20的内部相应的寄存器中，完成初始化设置；裂缝变化监测装置进行裂缝的初期值测试阶段，启动图像传感器20，使图像传感器20按预设条件对裂缝的宽度进行扫描，并将结果保存于裂缝变化监测装置的裂缝变化监测部40的第一存贮器411中；图像传感器20继续对裂缝的宽度进行扫描，并将结果保存于裂缝变化监测部40的第二存贮器412中；裂缝变化监测部40的演算单元42对第二存贮器412和第一存贮器411中保存的数据进行演算，并将结果发给电脑终端53，而后裂缝变化监测装置再次进行到待机状态。In this application, a method for monitoring crack change is also provided. The following crack change monitoring device is used to monitor cracks. The crack change monitoring method includes: fixing the crack change monitoring device on the crack before monitoring the crack. The detection surface of the box 10 of the crack change monitoring device is attached to the wall surface, and the scanning path of the image sensor 20 of the crack change monitoring device is perpendicular to the extension direction of the crack; the power is turned on, and the crack changes The monitoring device automatically performs the initialization setting process, and transfers the pre-set clock frequency, line scan period, number of scans, turn-on time of the light source 30, and related parameters of the image sensor 20 into the corresponding internal registers of the image sensor 20 to complete Initialization setting; the crack change monitoring device performs the initial value test stage of the crack, and the image sensor 20 is activated, so that the image sensor 20 scans the width of the crack according to the preset conditions, and the result is stored in the crack change monitoring part 40 of the crack change monitoring device The image sensor 20 continues to scan the width of the crack and saves the result in the second memory 412 of the crack change monitoring part 40; the calculation unit 42 of the crack change monitoring part 40 The data stored in the second memory 412 and the first memory 411 are calculated, and the result is sent to the computer terminal 53, and the crack change monitoring device is again in the standby state.
进一步地，裂缝的初始宽度测量完成后，裂缝变化监测装置可与电脑终端53建立通信联络，首先将裂缝变化监测装置的输出装置50的代码发给电脑终端53，电脑终端53收到裂缝变化监测装置的代码后会给裂缝变化监测装置回复一个确认信息，收到确认信息后输出装置50再将裂缝的初始数据发给电脑终端53。Further, after the initial width of the crack is measured, the crack change monitoring device can establish communication with the computer terminal 53, and first send the code of the output device 50 of the crack change monitoring device to the computer terminal 53, and the computer terminal 53 receives the crack change monitoring After the code of the device, a confirmation message will be returned to the crack change monitoring device, and the output device 50 will send the initial data of the crack to the computer terminal 53 after receiving the confirmation message.
进一步地，裂缝变化监测装置进入常规作业程序中，首先，裂缝变化监测装置进入待机状态，裂缝变化监测装置的部分功能会自动断电，裂缝变化监测部40的时钟单元自动进入计时状态，达到第三预设时间间隔后，整个裂缝变化监测装置恢复到工作状态，图像传感器20进行扫描，并将扫描数据贮存到第二存贮器412中。Further, the crack change monitoring device enters the normal operating procedure. First, the crack change monitoring device enters the standby state, some functions of the crack change monitoring device will automatically power off, and the clock unit of the crack change monitoring unit 40 automatically enters the timing state, reaching the first 3. After the preset time interval, the entire crack change monitoring device is restored to the working state, the image sensor 20 scans, and the scan data is stored in the second memory 412.
进一步地，如果电脑终端53判断发送数据异常，可以随时呼叫裂缝变化监测装置，裂缝变化监测装置收到呼叫信号后会再次恢复到工作状态，并再次进行裂缝的宽度测量，并将测量结果再次发给电脑终端53。Further, if the computer terminal 53 determines that the transmitted data is abnormal, it can call the crack change monitoring device at any time. After the crack change monitoring device receives the call signal, it will return to working state again, and measure the width of the crack again, and send the measurement result again. To the computer terminal 53.
在本申请中，当墙面出现新的裂缝时，也能够用同样的方法进行监测。In this application, when a new crack appears on the wall, the same method can be used to monitor it.
从以上的描述中，可以看出，本发明上述的实施例实现了如下技术效果：From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects:
1、通过使用裂缝变化监测装置，使工作人员不需要定期地专程去混凝土建筑物现场，也能定期地了解裂缝变化状态；1. By using the crack change monitoring device, the staff does not need to make a special trip to the concrete building site regularly, but can also regularly understand the crack change status;
2、缩短了裂缝检测作业的过程；2. Shorten the process of crack detection operations;
3、通过差分结算，消除了读取数据中包含的凹凸不平及玷污产生的噪音成分，使裂缝变化的信息更加准确；3. Through differential settlement, the noise component caused by the unevenness and tarnish contained in the read data is eliminated, so that the information of the crack change is more accurate;
4、传送的数据量小，维护费用低。4. The amount of transmitted data is small and the maintenance cost is low.
显然，上述所描述的实施例仅仅是本发明一部分的实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都应当属于本发明保护的范围。Obviously, the embodiments described above are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
需要注意的是，这里所使用的术语仅是为了描述具体实施方式，而非意图限制根据本申请的示例性实施方式。如在这里所使用的，除非上下文另外明确指出，否则单数形式也意图 包括复数形式，此外，还应当理解的是，当在本说明书中使用术语“包含”和/或“包括”时，其指明存在特征、步骤、工作、器件、组件和/或它们的组合。It should be noted that the terms used here are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprising" and/or "including" are used in this specification, they indicate There are features, steps, works, devices, components, and/or combinations thereof.
需要说明的是，本申请的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的本申请的实施方式以除了在这里图示或描述的那些以外的顺序实施。It should be noted that the terms "first" and "second" in the description and claims of the application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein are implemented in a sequence other than those illustrated or described herein.
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。The foregoing descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention can have various modifications and changes. Any modification, equivalent replacement, improvement, etc., made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (17)

  1. 一种裂缝变化监测装置，其特征在于，包括：A crack change monitoring device, characterized in that it comprises:
    箱体(10)，所述箱体(10)具有检测面，所述检测面贴合设置在待检测位置处；A box body (10), the box body (10) has a detection surface, and the detection surface is closely arranged at a position to be detected;
    固定结构，所述箱体(10)通过所述固定结构安装在所述待检测位置处且保持固定不动；A fixed structure, where the box body (10) is installed at the position to be detected by the fixed structure and remains fixed;
    至少一个图像传感器(20)，所述图像传感器(20)设置在所述箱体(10)内且所述图像传感器(20)的检测端朝向所述检测面设置；At least one image sensor (20), the image sensor (20) is arranged in the box (10) and the detection end of the image sensor (20) is arranged toward the detection surface;
    光源(30)，所述光源(30)设置在所述箱体(10)内且朝向所述检测面设置，所述光源(30)为多个，且所述图像传感器(20)的上下两侧分别至少设置有一个所述光源(30)，所述光源(30)照射所述待检测位置处的墙面和裂缝，所述图像传感器(20)采集所述墙面和所述裂缝处的亮度等级线；A light source (30), the light source (30) is arranged in the box (10) and facing the detection surface, the light source (30) is multiple, and the upper and lower two of the image sensor (20) At least one light source (30) is provided on the side respectively, and the light source (30) illuminates the wall and the crack at the position to be detected, and the image sensor (20) collects the light from the wall and the crack. Brightness level line;
    裂缝变化监测部(40)，所述裂缝变化监测部(40)与所述图像传感器(20)连接，所述裂缝变化监测部(40)根据第一预设时间间隔接收所述图像传感器(20)采集到的所述亮度等级线并进行存储，且根据第二预设时间间隔将前后任意两组所述亮度等级线进线比较以得到所述待检测位置处的裂缝的宽度变化数据；The crack change monitoring part (40) is connected to the image sensor (20), and the crack change monitoring part (40) receives the image sensor (20) according to a first preset time interval. ) The collected brightness level lines are stored, and any two groups of the brightness level lines before and after are compared according to a second preset time interval to obtain the width change data of the crack at the position to be detected;
    输出装置(50)，所述输出装置(50)与所述裂缝变化监测部(40)连接，以通过显示、存储记录、报警的至少一种方式进行输出。An output device (50), the output device (50) is connected to the crack change monitoring part (40), and outputs by at least one of displaying, storing records, and alarming.
  2. 根据权利要求1所述的裂缝变化监测装置，其特征在于，所述箱体(10)沿横向分为动力区和检测区，所述检测区包括采集区和处理区，且所述处理区位于所述采集区的上方或下方；所述图像传感器(20)和所述光源(30)位于所述采集区，所述裂缝变化监测部(40)位于所述处理区，所述裂缝变化监测装置包括蓄电池组(43)，所述蓄电池组(43)位于所述动力区并给所述图像传感器(20)、所述光源(30)和所述裂缝变化监测部(40)供电。The crack change monitoring device according to claim 1, characterized in that the box (10) is divided into a power zone and a detection zone along the transverse direction, the detection zone includes a collection zone and a processing zone, and the processing zone is located in Above or below the collection area; the image sensor (20) and the light source (30) are located in the collection area, the crack change monitoring part (40) is located in the processing area, and the crack change monitoring device It comprises a battery pack (43), the battery pack (43) is located in the power zone and supplies power to the image sensor (20), the light source (30) and the crack change monitoring part (40).
  3. 根据权利要求2所述的裂缝变化监测装置，其特征在于，所述裂缝变化监测装置还包括开关电路，所述蓄电池组(43)给所述开关电路供电，所述图像传感器(20)、所述光源(30)、所述裂缝变化监测部(40)和所述输出装置(50)与所述开关电路连接，所述开关电路根据第三预设时间控制所述裂缝变化监测装置的启动或停机。The crack change monitoring device according to claim 2, wherein the crack change monitoring device further comprises a switch circuit, the battery pack (43) supplies power to the switch circuit, the image sensor (20), the The light source (30), the crack change monitoring unit (40), and the output device (50) are connected to the switch circuit, and the switch circuit controls the activation or activation of the crack change monitoring device according to a third preset time Downtime.
  4. 根据权利要求1所述的裂缝变化监测装置，其特征在于，所述图像传感器(20)和所述光源(30)均为多个，且多个所述图像传感器(20)和多个所述光源(30)依次交替排列设置，多个所述图像传感器(20)分别与所述裂缝变化监测部(40)连接。The crack change monitoring device according to claim 1, wherein the image sensor (20) and the light source (30) are both multiple, and multiple image sensors (20) and multiple The light sources (30) are arranged alternately in sequence, and a plurality of the image sensors (20) are respectively connected with the crack change monitoring part (40).
  5. 根据权利要求1所述的裂缝变化监测装置，其特征在于，所述图像传感器(20)的分辨率大于等于200DPI。The crack change monitoring device according to claim 1, wherein the resolution of the image sensor (20) is greater than or equal to 200 DPI.
  6. 根据权利要求1所述的裂缝变化监测装置，其特征在于，所述光源(30)是LED光源，所述LED光源发射可见光和/或不可见光。The crack change monitoring device according to claim 1, characterized in that the light source (30) is an LED light source, and the LED light source emits visible light and/or invisible light.
  7. 根据权利要求1至6任一项所述的裂缝变化监测装置，其特征在于，多个行扫描周期内所述图像传感器(20)采集到的与时钟信号同步的扫描路径的亮度值变化形成所述亮度等级线。The crack change monitoring device according to any one of claims 1 to 6, characterized in that the change in the brightness value of the scanning path synchronized with the clock signal collected by the image sensor (20) in multiple line scanning periods forms a The brightness level line.
  8. 根据权利要求1至6任一项所述的裂缝变化监测装置，其特征在于，所述裂缝变化监测部(40)包括：The crack change monitoring device according to any one of claims 1 to 6, wherein the crack change monitoring part (40) comprises:
    时钟单元，通过所述时钟单元设定所述第一预设时间和所述第二预设时间并计时；A clock unit, by which the first preset time and the second preset time are set and timed;
    数据存储单元(41)，接收所述图像传感器(20)采集到的所述亮度等级线并进行存储；A data storage unit (41) that receives and stores the brightness level line collected by the image sensor (20);
    演算单元(42)，所述演算单元(42)对前后任意两组采集的所述亮度等级线进行差分计算，以得到所述待检测位置处的裂缝的宽度变化数据。An arithmetic unit (42), the arithmetic unit (42) performs a differential calculation on any two groups of the brightness level lines collected before and after, so as to obtain the width change data of the crack at the position to be detected.
  9. 根据权利要求8所述的裂缝变化监测装置，其特征在于，所述数据存储单元(41)包括第一存贮器(411)和第二存贮器(412)，所述第一存贮器(411)记录所述图像传感器(20)初次采集的所述亮度等级线，所述第二存贮器(412)记录所述图像传感器(20)除初次以外每次采集的所述亮度等级线，所述演算单元(42)对所述第一存贮器(411)和所述第二存贮器(412)的所述亮度等级线进行差分计算，以得到当前所述待检测位置处的裂缝的宽度变化数据。The crack change monitoring device according to claim 8, wherein the data storage unit (41) comprises a first memory (411) and a second memory (412), and the first memory (411) Record the brightness level line collected by the image sensor (20) for the first time, and the second memory (412) records the brightness level line collected by the image sensor (20) every time except for the first time The calculation unit (42) performs a differential calculation on the brightness level lines of the first memory (411) and the second memory (412) to obtain the current position to be detected The width change data of the crack.
  10. 根据权利要求1至6中任一项所述的裂缝变化监测装置，其特征在于，所述输出装置(50)包括无线控制部(51)，所述无线控制部(51)接收并发送所述裂缝的宽度变化数据。The crack change monitoring device according to any one of claims 1 to 6, wherein the output device (50) comprises a wireless control unit (51), and the wireless control unit (51) receives and sends the The width change data of the crack.
  11. 根据权利要求10所述的裂缝变化监测装置，其特征在于，所述无线控制部(51)包括：The crack change monitoring device according to claim 10, wherein the wireless control unit (51) comprises:
    无线网络(511)；Wireless network (511);
    无线控制本体(512)，所述无线控制本体(512)接收所述裂缝的宽度变化的数据；A wireless control body (512), the wireless control body (512) receiving data of the width change of the crack;
    天线(513)，所述天线(513)与所述无线控制本体(512)连接，并且所述天线(513)通过所述无线网络(511)将所述裂缝的宽度变化数据向外发送。An antenna (513), the antenna (513) is connected to the wireless control body (512), and the antenna (513) transmits the width change data of the crack to the outside through the wireless network (511).
  12. 根据权利要求10所述的裂缝变化监测装置，其特征在于，所述输出装置(50)还包括数据库(52)，所述数据库(52)存储所述无线控制部(51)发送的所述裂缝的宽度变化数据，电脑终端(53)对所述裂缝的宽度变化数据进行分析，当所述数据库(52)中的所述裂缝的宽度变化数据超出预警值时，所述电脑终端(53)发出提示。The crack change monitoring device according to claim 10, wherein the output device (50) further comprises a database (52), and the database (52) stores the cracks sent by the wireless control unit (51). The computer terminal (53) analyzes the width change data of the crack. When the width change data of the crack in the database (52) exceeds the warning value, the computer terminal (53) sends prompt.
  13. 根据权利要求12所述的裂缝变化监测装置，其特征在于，所述电脑终端(53)包括显示器、蜂鸣报警器和报警指示灯中的至少一种。The crack change monitoring device according to claim 12, wherein the computer terminal (53) includes at least one of a display, a buzzer and an alarm indicator.
  14. 一种裂缝变化监测方法，其特征在于，采用权利要求1至13中任一项所述的裂缝变化监测装置对裂缝进行监测，所述裂缝变化监测方法包括：A method for monitoring fracture changes, characterized in that the fracture change monitoring device according to any one of claims 1 to 13 is used to monitor fractures, and the method for monitoring fracture changes comprises:
    在对裂缝进行监测前，将所述裂缝变化监测装置固定在所述裂缝所在的墙面上，并 使所述裂缝变化监测装置的箱体(10)的检测面贴合在所述墙面上，且使所述裂缝变化监测装置的图像传感器(20)的扫描路径垂直于所述裂缝的延伸方向；Before monitoring the cracks, fix the crack change monitoring device on the wall where the crack is located, and make the detection surface of the box (10) of the crack change monitoring device fit on the wall , And make the scanning path of the image sensor (20) of the crack change monitoring device perpendicular to the extending direction of the crack;
    开启电源，所述裂缝变化监测装置自动进行初始化设置过程，将预先设定好的时钟频率、行扫描周期、扫描次数、光源(30)的开启时间以及所述图像传感器(20)的相关参数调入到所述图像传感器(20)的内部相应的寄存器中，完成初始化设置；When the power is turned on, the crack change monitoring device automatically performs the initialization setting process, and adjusts the preset clock frequency, line scan period, scan number, turn-on time of the light source (30), and related parameters of the image sensor (20). Enter the corresponding internal register of the image sensor (20) to complete the initial setting;
    所述裂缝变化监测装置进行所述裂缝的初期值测试阶段，启动所述图像传感器(20)，使所述图像传感器(20)按预设条件对所述裂缝的宽度进行扫描，并将结果保存于所述裂缝变化监测装置的裂缝变化监测部(40)的第一存贮器(411)中；The crack change monitoring device performs the initial value test stage of the crack, activates the image sensor (20), makes the image sensor (20) scan the width of the crack according to preset conditions, and saves the result In the first memory (411) of the crack change monitoring part (40) of the crack change monitoring device;
    所述图像传感器(20)继续对所述裂缝的宽度进行扫描，并将结果保存于所述裂缝变化监测部(40)的第二存贮器(412)中；The image sensor (20) continues to scan the width of the crack, and saves the result in the second memory (412) of the crack change monitoring part (40);
    所述裂缝变化监测部(40)的演算单元(42)对所述第二存贮器(412)和所述第一存贮器(411)中保存的数据进行演算，并将结果发给电脑终端(53)，而后所述裂缝变化监测装置再次进行到待机状态。The calculation unit (42) of the crack change monitoring unit (40) calculates the data stored in the second memory (412) and the first memory (411), and sends the results to the computer Terminal (53), and then the crack change monitoring device goes into a standby state again.
  15. 根据权利要求14所述的裂缝变化监测方法，其特征在于，The fracture change monitoring method according to claim 14, wherein:
    所述裂缝的初始宽度测量完成后，所述裂缝变化监测装置可与所述电脑终端(53)建立通信联络，首先将所述裂缝变化监测装置的输出装置(50)的代码发给所述电脑终端(53)，所述电脑终端(53)收到所述裂缝变化监测装置的代码后会给所述裂缝变化监测装置回复一个确认信息，收到所述确认信息后所述输出装置(50)再将所述裂缝的初始数据发给所述电脑终端(53)。After the initial width of the crack is measured, the crack change monitoring device can establish communication with the computer terminal (53), and first send the code of the output device (50) of the crack change monitoring device to the computer A terminal (53). After receiving the code of the crack change monitoring device, the computer terminal (53) will reply a confirmation message to the crack change monitoring device. After receiving the confirmation message, the output device (50) The initial data of the crack is sent to the computer terminal (53).
  16. 根据权利要求14所述的裂缝变化监测方法，其特征在于，The fracture change monitoring method according to claim 14, wherein:
    所述裂缝变化监测装置进入常规作业程序中，首先，所述裂缝变化监测装置进入待机状态，所述裂缝变化监测装置的部分功能会自动断电，所述裂缝变化监测部(40)的时钟单元自动进入计时状态，达到第三预设时间间隔后，整个所述裂缝变化监测装置恢复到工作状态，所述图像传感器(20)进行扫描，并将扫描数据贮存到所述第二存贮器(412)中。The crack change monitoring device enters the normal operating procedure. First, the crack change monitoring device enters a standby state, and some functions of the crack change monitoring device will automatically power off. The clock unit of the crack change monitoring unit (40) It automatically enters the timing state. After reaching the third preset time interval, the entire crack change monitoring device returns to the working state, the image sensor (20) scans, and the scan data is stored in the second memory ( 412) in.
  17. 根据权利要求14所述的裂缝变化监测方法，其特征在于，The fracture change monitoring method according to claim 14, wherein:
    如果所述电脑终端(53)判断发送数据异常，可以随时呼叫所述裂缝变化监测装置，所述裂缝变化监测装置收到呼叫信号后会再次恢复到工作状态，并再次进行所述裂缝的宽度测量，并将测量结果再次发给所述电脑终端(53)。If the computer terminal (53) judges that the sent data is abnormal, it can call the crack change monitoring device at any time, and the crack change monitoring device will return to the working state after receiving the call signal, and measure the width of the crack again , And send the measurement result to the computer terminal (53) again.
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