Crack monitoring device for dam safety monitoring

Abstract

The invention discloses a crack monitoring device for dam safety monitoring, which comprises a flooding detection module, a storage battery, a solar cell panel, a fixed plate, a limiting plate, a shell, a single chip microcomputer module, a GPRS module and a short message module, and is also provided with a detection mechanism and a detection circuit, the solar cell panel is installed on the limiting plate, the detection mechanism comprises a spring, a tension sensor, a flooding detection module, a storage battery, a single-chip microcomputer module, a GPRS module, a detection circuit and a short message module which are installed in a shell and electrically connected, the shell is installed at the upper end of the fixing plate, and the tension sensor, the spring, the shell and the limiting plate are connected together; a split type detection head of the flooding detection module is installed below the side end of a fixing plate, and a limiting plate and the fixing plate are installed on the two sides of a dam monitoring position respectively. According to the method, remote related management personnel can be prompted in a short message active mode in the first time when the dam cracks and overlarge water, so that convenience is brought to the related management personnel, and the safety of the dam is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of monitoring devices, and particularly to a crack monitoring device for dam safety monitoring. Background Art

[0002] The main function of a dam is to raise the upstream water level to form a reservoir, thereby storing a large amount of water resources, providing a stable water source for irrigation, water supply, shipping, power generation, etc. At the same time, the dam can also effectively control floods and protect the downstream area from flood disasters. In practical applications, due to factors such as construction quality, materials, and geological activities (such as earthquakes), there is a probability of cracks occurring at the top of the dam, etc. Since the prior art usually checks whether there are cracks at the top of the dam, etc. through manual inspections, and the dam is generally located in remote areas. When the dam is not equipped with dedicated inspection personnel, or although there are inspection personnel, but their work responsibility is not strong, after cracks appear at the top of the dam, etc., it cannot be guaranteed that relevant management personnel can master the specific situation in a timely manner and take corresponding measures, posing a relatively large safety hazard (for example, after cracks appear in the dam, inspection technicians can take corresponding measures according to the specific situation; when the cracks in the dam are too large to affect the dam body safety, the sluice gate can be opened in time to release flood and notify downstream personnel to evacuate and make safety preparations to prevent the downstream from being flooded due to the sudden collapse of the dam, etc.; when the cracks in the dam are not large, repairs can be carried out, etc.). Moreover, existing dams do not have a water level monitoring function. That is to say, similarly, when the staff does not conduct on-site inspections manually, when the water level is too high, there is a probability of water overflowing the dam due to lack of timely treatment, which will pose a certain safety threat to the dam itself (such as too high water pressure caused by too high water level, resulting in the collapse of weak parts of the dam, etc.). Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems in the related art to some extent.

[0004] In order to overcome the drawbacks described in the background art due to the lack of a practical device for crack detection in existing dams, the present invention provides a crack monitoring device for dam safety monitoring, which, under the joint action of relevant institutions, can synchronously and real-time monitor whether there are transverse or longitudinal cracks at the dam crest. Based on the existing mature Internet of Things data transceiver and display, remote relevant management personnel can, through the PC or smartphone around them, real-time master the specific data, and can actively prompt remote relevant management personnel by text message in a timely manner when the cracks are too large or the dam crest is flooded, thus bringing convenience to relevant management personnel and ensuring the safety of dams, etc.

[0005] To achieve the above object, on the one hand, the present invention provides a crack monitoring device for dam safety monitoring, including: a flooding detection module, a storage battery, a solar panel, a fixing plate, a limiting plate, a housing, a single-chip microcomputer module, a GPRS module, a short message module, a detection mechanism, and a detection circuit. The solar panel is installed on the limiting plate. The detection mechanism includes a spring and a tensile sensor. The flooding detection module, the storage battery, the single-chip microcomputer module, the GPRS module, the detection circuit, and the short message module are installed in the housing. The housing is installed at the upper end of the fixing plate. One end of the tensile sensor is installed together with one end of the spring, and the other end of the spring is installed with the side end of the housing. The other end of the tensile sensor is connected to the side end of the limiting plate through a pulling rope. The split-type detection head of the flooding detection module is installed at the lower side end of the fixing plate. The limiting plate and the fixing plate are respectively installed on both sides of the dam monitoring position. The two poles of the storage battery, the two poles of the solar panel, and the power input ends of the single-chip microcomputer module, the GPRS module, the detection circuit, the tensile sensor, the flooding detection module, and the short message module are electrically connected. The signal input ends of the single-chip microcomputer module and the detection circuit and the signal output end of the tensile sensor are electrically connected. The signal output end of the flooding detection module and the signal input end of the detection circuit are electrically connected. The signal output end of the single-chip microcomputer module and the signal input end of the GPRS module are electrically connected. The signal input end of the short message module and the signal output end of the detection circuit are electrically connected.

[0006] The crack monitoring device for dam safety monitoring according to the embodiment of the present invention may further have the following additional technical features:

[0007] In an embodiment of the present invention, the spring, the tensile sensor, the pulling rope, and the limiting plate and the housing are in a straight structure.

[0008] In an embodiment of the present invention, the lower heights of the spring, the tensile sensor, and the pulling rope are higher than the lower heights of the limiting plate and the fixing plate.

[0009] In an embodiment of the present invention, the detection circuit includes a resistor and a triode that are electrically connected. One end of the first resistor is connected to one end of the second resistor and one end of the third resistor. The other end of the first resistor is connected to the emitter of the triode.

[0010] In an embodiment of the present invention, the two poles of the storage battery, the two poles of the solar panel, and the power input ends 1 and 2 of the single-chip microcomputer module, the power input ends 1 and 2 of the GPRS module, the power input end resistor of the detection circuit, the power input ends 1 and 2 of the tensile sensor, the power input ends 1 and 2 of the flooding detection module, and the power input ends 1 and 2 of the short message module are respectively connected by wires. The signal input end 3 of the single-chip microcomputer module and the signal input end resistor of the detection circuit and the signal output end 3 of the tensile sensor are connected by wires.

[0011] In one embodiment of the present invention, the signal output terminal of the waterlogging detection module, pin 3, is connected to the signal input terminal of the detection circuit, the base of the triode, through a wire.

[0012] In one embodiment of the present invention, the signal output terminal of the single-chip microcomputer module is connected to the signal input terminal of the GPRS module through a wire, and the signal input terminal of the short message module, pin 3, is connected to the signal output terminal of the detection circuit, the collector of the triode, through a wire.

[0013] In one embodiment of the present invention, the voltage of the solar panel is 12V DC and the power is 10W; the battery is a lithium battery with a model of 12V / 10Ah; the model of the triode is 9013.

[0014] In one embodiment of the present invention, the model of the tensile sensor is DYMH-103, which has two power input terminals and one signal output terminal; the model of the waterlogging detection module is WT202-12V, which has two power input terminals and one signal output terminal; the main control chip of the single-chip microcomputer module is STM32F103C8T6; the model of the GPRS module is ZLAN810.

[0015] In one embodiment of the present invention, the short message module is a short message alarm module with a model of GSM800. The short message alarm module has two power input terminals, pins 1 and 2, and signal input ports, pins 3-8. After a low-level signal is input to each signal input port, the finished short message alarm module sends a message through the wireless mobile network.

[0016] The crack monitoring device for dam safety monitoring according to the embodiment of the present invention can achieve effective crack monitoring. When there are cracks or excessive waterlogging in the dam, it can prompt the relevant remote management personnel in a proactive way by short message in the first time, which brings convenience to the relevant management personnel and ensures the safety of the dam.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easy to understand from the following description of the embodiments in conjunction with the drawings, in which:

[0019] Figure 1 is a structural diagram of the crack monitoring device for dam safety monitoring according to the embodiment of the present invention;

[0020] Figure 2 is a circuit diagram of the crack monitoring device for dam safety monitoring according to the embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0022] In order to enable those skilled in the art of this technology to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present invention without creative efforts shall fall within the protection scope of the present invention.

[0023] The crack monitoring device for dam safety monitoring proposed according to the embodiments of the present invention will be described below with reference to the drawings.

[0024] Figure 1 is a structural diagram of the crack monitoring device for dam safety monitoring according to the embodiments of the present invention, including a water immersion detection module A2, a storage battery G2, a solar panel G1, a fixing plate 1, a limiting plate 2, a housing 3, a single-chip microcomputer module A3, a GPRS module A4, a short message module A5, and also having a detection mechanism and a detection circuit 4; the solar panel G1 is fixedly installed on the limiting plate 2, the detection mechanism includes a spring 51 and a tension sensor A1, the water immersion detection module A2, the storage battery G2, the single-chip microcomputer module A3, the GPRS module A4, the detection circuit 4, and the short message module A5 are hermetically installed in the housing 3, the housing 3 is installed in the middle of the upper end of the fixing plate 1, the left fixed ring of the tension sensor A1 is fixedly installed together with the right end of the spring 51, the left end of the spring 51 is fixedly installed outside the middle of the right end of the housing 3, and the right fixed ring of the tension sensor A1 is connected to the middle of the left end of the limiting plate 2 through a pulling rope 6; the split detection head 7 of the water immersion detection module is fixedly installed on the lower side of the middle of the right end of the fixing plate 1, there is a fixing hole on each of the four sides of the limiting plate 2 and the fixing plate 1, and the limiting plate and the fixing plate are installed on both sides of the longitudinal or transverse position of the dam through multiple cement nails 8 (or expansion bolts) at intervals.

[0025] Figure 1 、 2As shown, the spring 51, the tension sensor A1, the pull rope 6, the limit plate 2, and the housing 3 are in a straightened structure. The lower ends of the spring 51, the tension sensor A1, and the pull rope 6 are higher than the lower ends of the limit plate 2 and the fixing plate 1. The detection circuit includes a resistor R1, R2, R3, and a triode Q1 connected by circuit board wiring. One end of the first resistor R2 is connected to one end of the second resistor R1 and one end of the third resistor R3. The other end of the first resistor R2 is connected to the emitter of the triode Q1. The two poles of the storage battery G1, the two poles of the solar panel G2, the power input terminals 1 and 2 of the single-chip microcomputer module A3, the power input terminals 1 and 2 of the GPRS module A4, the power input terminal of the detection circuit at the other end of the resistor R2, the power input terminals 1 and 2 of the tension sensor A1, the power input terminals 1 and 2 of the water immersion detection module A2, and the power input terminals 1 and 2 of the short message module A5 are respectively connected by wires. The signal input terminal 3 of the single-chip microcomputer module A3 and the signal input terminal of the detection circuit at the other end of the resistor R1 and the signal output terminal 3 of the tension sensor A1 are connected by wires. The signal output terminal 3 of the water immersion detection module A2 and the base of the triode Q1 at the signal input terminal of the detection circuit are connected by wires. The signal output terminal of the single-chip microcomputer module A3 and the signal input terminal of the GPRS module A4 are connected by wires. The signal input terminal 3 of the short message module A5 and the collector of the triode Q1 at the signal output terminal of the detection circuit are connected by wires. Figure 2 Among them, the voltage of the solar panel G1 is 12V DC and the power is 10W; the storage battery G2 is a lithium storage battery of model 12V / 10Ah; the resistance values of the resistors R1, R2, and R3 are 10K, 10K, and 47K respectively; the model of the triode Q1 is 9013 (NPN); the model of the tension sensor A1 is DYMH-103, which has two power input terminals and one signal output terminal (outputting a voltage signal with a dynamic change of 0-10V); the model of the water immersion detection module A2 is WT202-12V, which has two power input terminals and one signal output terminal (when the probe is wetted by water, the signal output terminal outputs power, otherwise it does not output); the main control chip of the single-chip microcomputer module A3 is STM32F103C8T6; the model of the GPRS module A4 is ZLAN810; the short message module A5 is a short message alarm module of model GSM800. The finished product of the short message alarm module has two power input terminals 1 and 2, and signal input ports 3-8. After each signal input port inputs a low-level signal, the finished product of the short message alarm module will send a short message through the wireless mobile network.

[0026] Figure 1 、 2As shown, multiple sets of the present invention can be used in combination to monitor a large range longitudinally and transversely at the top of the dam (or positions above the water level on the front and back sides can also be monitored), or a small number of the present invention can be installed to monitor key points. Usually, the solar panel G1 of the present invention generates electrical energy under light irradiation to charge the battery G2. In this way, the present invention can work normally at night and on rainy and cloudy days, and reduces the power consumption, etc. When there is no crack in the relevant area at the top of the dam, the distance between the limit plate 2 and the fixed plate 1 does not change, and the voltage signal output from the 3rd pin of the tension sensor A1 is relatively low; when there is a crack in the relevant area at the top of the dam, the distance between the limit plate 2 and the fixed plate 1 changes, and the voltage signal output from the 3rd pin of the tension sensor A1 is relatively high (the pull rope tightens the tension sensor A1, and the acting force on the stress surface of the tension sensor A1 becomes larger, so the voltage signal output from its 3rd pin will become higher; specifically, although the spring 51 will reduce the acting force on the tension sensor A1, after the crack occurs, as long as the distance between the limit plate 2 and the fixed plate 1 changes, the spring will still tighten the stress surface of the pressure sensor A1 and make its 3rd pin output a relatively large voltage signal). When there is no crack at the relevant position (or the crack is extremely small and does not affect the safety of the dam; specifically, in production, when the resistance value of the resistor R1 is set relatively large, then the larger the crack, the more likely the triode Q1 will conduct, and vice versa, the smaller the crack, the more likely the triode Q1 will conduct; the specific monitoring threshold is set by production technicians according to needs), the voltage signal output from the 3rd pin of the pressure sensor A1 is divided by the resistors R1 and R2, and the resistor R3 steps down the voltage and limits the current to enter the base of the triode Q1 below 0.7V, and the triode Q1 will not conduct. Then, the triode Q1 will not conduct, and the 3rd pin of the SMS module A5 will not input a low-level signal, and the SMS module A5 will not send out a text message. When the crack at the relevant position is relatively large (it will affect the safety of the dam), the voltage signal output from the 3rd pin of the pressure sensor A1 is divided by the resistors R1 and R2, and the resistor R3 steps down the voltage and limits the current to enter the base of the triode Q1 above 0.7V, and the triode Q1 will conduct and the collector will output a low level to enter the 3rd pin of the SMS module A5. Then, since the 3rd pin of the SMS module A5 inputs a low-level signal, the SMS module A5 will send out the first text message stored (after the remote management personnel's mobile phone receives the text message, they can know that there is a crack or waterlogging at the site). After the waterlogging detection module A2 is powered on, when there is no water overflowing the dam top at the site, the 3rd pin of the waterlogging detection module A2 does not output a high level, and the SMS module A5 will not send a text message; when there is water overflowing the dam top at the site, after the split-type detection head of the waterlogging detection module A2 detects it, its 3rd pin does not output a high level to enter the base of the triode Q1, and the triode Q1 conducts and the collector outputs a low level to enter the 3rd pin of the SMS module A5. Then, since the 3rd pin of the SMS module A5 inputs a low-level signal, the SMS module A5 will send out the first text message stored (after the remote management personnel's mobile phone receives the text message, they can know that there is a crack or waterlogging at the site).In the present invention, when the pull sensor A1 outputs a voltage signal at its pin 3, the voltage signal also enters pin 3 of the single-chip microcomputer module A3. The single-chip microcomputer module A3 converts the analog voltage signal into a digital signal and outputs it to the GPRS module A4. The GPRS module A4 transmits the data over a long distance. After the PC of the relevant personnel at the remote end or the PC receives the data, they can know in real time whether there are cracks in the dam on-site by watching the screen (the higher the number or the peak of the waveform diagram displayed on the screen, the larger the crack, and vice versa, the smaller the crack).

[0027] Figure 1 、 2 As shown, through the above, the present invention can monitor a large range longitudinally and transversely at the top of the dam. It can also install a small number of the present invention to monitor key points. It can synchronously and real-time monitor whether there are transverse or longitudinal cracks and waterlogging conditions at the dam top. Based on the existing mature Internet of Things data transceiver and display, the relevant management personnel at the remote end can receive the specific data sent by the GPRS module in real time through the PC or smart phone around them, and can actively prompt the relevant management personnel at the remote end by text message in the first time when the crack is too large or there is waterlogging. This brings convenience to the relevant management personnel and ensures the safety of the dam and so on. It should be emphasized that the single-chip microcomputer module A3 collects the analog voltage signal output by the relevant detection devices on-site, then converts the signal into a digital signal, and transmits it over a long distance through the GPRS module A4 via the wireless mobile network. The relevant applications in the remote PC or smart phone receive the data and display various data of the monitored site through the digital or waveform diagram on the display screen of the PC or smart phone, which is an extremely mature Internet of Things technology. The present invention only uses the above mature technology combined with other relevant mechanisms to realize the monitoring of the dam cracks and waterlogging on-site. That is to say, the single-chip microcomputer module collects on-site data and transmits it over a long distance through the GPRS module, and the remote end receives and displays the data, which does not belong to the object protected by the present invention.

[0028] The crack monitoring device for dam safety monitoring according to the embodiment of the present invention can be used in multiple sets in combination to monitor a large range longitudinally and transversely at the top of the dam. It can also install a small number of the present invention to monitor key points. The detection circuit, detection mechanism and waterlogging detection module can synchronously and real-time monitor whether there are transverse or longitudinal cracks and waterlogging conditions at the dam top. Based on the existing mature Internet of Things data transceiver and display, the relevant management personnel at the remote end can receive the specific data sent by the GPRS module in real time through the PC or smart phone around them, and can actively prompt the relevant management personnel at the remote end by text message in the first time when the crack and waterlogging are too large. This brings convenience to the relevant management personnel and ensures the safety of the dam.

[0029] In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

Claims

1. A crack monitoring device for dam safety monitoring, characterized in that, It includes a flood detection module, a storage battery, a solar panel, a fixing plate, a limiting plate, a housing, a single-chip microcomputer module, a GPRS module, a short message module, a detection mechanism, and a detection circuit. The solar panel is installed on the limiting plate. The detection mechanism includes a spring and a tension sensor. The flood detection module, the storage battery, the single-chip microcomputer module, the GPRS module, the detection circuit, and the short message module are installed inside the housing. The housing is installed at the upper end of the fixing plate. One end of the tension sensor is installed together with one end of the spring, and the other end of the spring is installed together with the side end of the housing. The other end of the tension sensor is connected to the side end of the limiting plate through a pull rope. The split-type detection head of the flood detection module is installed at the lower side end of the fixing plate. The limiting plate and the fixing plate are respectively installed on both sides of the dam monitoring position. The two poles of the storage battery, the two poles of the solar panel, and the power input ends of the single-chip microcomputer module, the GPRS module, the detection circuit, the tension sensor, the flood detection module, and the short message module are electrically connected. The signal input ends of the single-chip microcomputer module and the detection circuit and the signal output end of the tension sensor are electrically connected. The signal output end of the flood detection module and the signal input end of the detection circuit are electrically connected. The signal output end of the single-chip microcomputer module and the signal input end of the GPRS module are electrically connected. The signal input end of the short message module and the signal output end of the detection circuit are electrically connected.

2. The device according to claim 1, characterized in that The spring, the tension sensor, the pull rope, and the limiting plate and the housing are in a straightened structure.

3. The device according to claim 1, characterized in that The height of the lower ends of the spring, the tension sensor, and the pull rope is higher than the height of the lower ends of the limiting plate and the fixing plate.

4. The device according to claim 1, characterized in that The detection circuit includes a resistor and a triode that are electrically connected. One end of the first resistor is connected to one end of the second resistor and one end of the third resistor. The other end of the first resistor is connected to the emitter of the triode.

5. The device according to claim 1, characterized in that, The two poles of the storage battery, the two poles of the solar panel, and the power input ends 1 and 2 of the single-chip microcomputer module, the power input ends 1 and 2 of the GPRS module, the other end of the resistor at the power input end of the detection circuit, the power input ends 1 and 2 of the tension sensor, the power input ends 1 and 2 of the flood detection module, and the power input ends 1 and 2 of the short message module are respectively connected by wires. The signal input end 3 of the single-chip microcomputer module and the other end of the resistor at the signal input end of the detection circuit and the signal output end 3 of the tension sensor are connected by wires.

6. The device according to claim 1, characterized in that, The signal output end 3 of the flood detection module and the base of the triode at the signal input end of the detection circuit are connected by wires.

7. The device according to claim 1, characterized in that, The signal output end of the single-chip microcomputer module and the signal input end of the GPRS module are connected by wires. The signal input end 3 of the short message module and the collector of the triode at the signal output end of the detection circuit are connected by wires.

8. The device according to claim 1, wherein The voltage of the solar panel is 12V DC and the power is 10W. The storage battery is a lithium storage battery with the model 12V / 10Ah. The model of the triode is 9013.

9. The device according to claim 1, characterized in that, The model of the tension sensor is DYMH-103, which has two power input ends and one signal output end. The model of the flood detection module is WT202-12V, which has two power input ends and one signal output end. The main control chip of the single-chip microcomputer module is STM32F103C8T6. The model of the GPRS module is ZLAN810.

10. The device according to claim 1, characterized in that The SMS module is an SMS alarm module of model GSM800. The SMS alarm module has two power input terminals, pins 1 and 2, and signal input ports, pins 3 - 8. After a low-level signal is input to each signal input port, the finished SMS alarm module sends a message via the wireless mobile network.

Images