Monitoring device for pavement construction

Abstract

A monitoring device for pavement construction comprises a motor speed reducing mechanism, a single chip microcomputer module, a GPRS module, a storage battery, a solar cell panel and a supporting mechanism and further comprises a thickness detection circuit, a temperature detection circuit, a time control circuit and a displacement prevention monitoring circuit. The supporting mechanism comprises a base, a fixed pipe, a movable pipe and a detection switch which are installed together, the lower end of the motor reducing mechanism is installed at the upper end of the movable pipe, a fixed rod is installed at the upper end of a rotating shaft of the motor reducing mechanism, the thickness detection circuit comprises a laser ranging module and a resistor, and the laser ranging module is installed at the side end of the fixed rod; the single-chip microcomputer module, the GPRS module, the storage battery, the resistor of the thickness detection circuit, the detection circuit, the time control circuit and the anti-displacement monitoring circuit are installed in the element box and electrically connected, and the element box and the solar cell panel are installed on the movable pipe. According to the utility model, the number of manual detection times can be reduced, far-end detection personnel can understand pavement thickness change data and indirectly understand the construction progress, and the detection cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of highway construction auxiliary equipment, in particular to a monitoring device for pavement construction. Background Technique

[0002] In the existing highway construction, in order to ensure the construction quality (such as the laying thickness of construction pavement materials, etc.) and the construction progress, special quality inspection personnel will be equipped to conduct manual inspections on the construction site to ensure the highway construction quality as much as possible.

[0003] The authorized patent with the Chinese patent number "202221916774.5" and the patent name "Highway Construction Quality Detection Device" records that "the utility model facilitates the movement of the highway construction quality detection device and increases the stability of the highway construction quality detection device by setting an electric telescopic rod, a fixed plate and moving rollers, ensuring the normal progress of the detection work; by setting a first sprocket, a first rotating shaft, a chain, a second sprocket and a second rotating shaft, the sampling detection and strength detection of the highway construction quality detection device can be carried out simultaneously, greatly increasing the applicability of the device; by setting a fixed disk, fixed bolts, a push plate, an elastic member, a connecting rod and a pressing plate, the sampling cylinder is detachably connected, facilitating the extraction of samples from the sampling cylinder and increasing the practicality of the device, which is convenient for people to use. The utility model has a simple and reliable structure, good detection effect on highway construction quality, convenient control and is suitable for popularization". As can be seen from the above, although the comparative patent realizes the sample sampling of pavement construction quality, limited by the structure, like other existing technologies in this field, when the inspection personnel are not on site, they cannot know the real-time change data of the pavement thickness and cannot obtain the on-site temperature data in real time. Further, when the inspection personnel are not on site, they cannot know in real time whether the construction thickness of the pavement meets the requirements and whether the construction progress of the staff is normal (for example, a slow change in pavement thickness means a slow construction progress). The above manual inspection method brings inconvenience to the inspection personnel and correspondingly increases the construction cost. In summary, it is particularly necessary to provide a device that can monitor the real-time construction progress of the on-site pavement, the change data of the pavement thickness and the temperature data, and provide data support for remote personnel to specifically judge the construction situation. Content of the Utility Model

[0004] In order to overcome the drawbacks that the existing highway construction requires manual methods to detect the thickness and construction progress of the construction road surface, which brings inconvenience to the inspectors and correspondingly increases the detection cost, the utility model provides a monitoring device for road construction that can minimize the number of times the inspectors go to the site for detection (for example, only need to go for manual detection after completion). In application, under the joint action of relevant institutions, it can wirelessly transmit the thickness, progress, and environmental temperature data of the on-site construction road surface. Without going to the site, the remote inspectors can understand the relevant on-site data through the existing mature Internet of Things data transceiver technology, which brings convenience to the inspectors, provides technical support for formulating corresponding measures, and correspondingly saves the detection cost.

[0005] The technical solution adopted by the utility model to solve its technical problems is as follows:

[0006] A monitoring device for road construction, including a motor reduction mechanism, a single-chip microcomputer module, a GPRS module, a storage battery, a solar panel, and a support mechanism. It is characterized in that it also has a thickness detection circuit, a temperature detection circuit, a time control circuit, and an anti-displacement monitoring circuit; the support mechanism includes a base, a fixed pipe, a movable pipe, and a detection switch. There is a groove at the lower end of the base, and the detection switch is installed in the groove. The fixed pipe is installed at the upper end of the base, and a fixed screw rod is installed on the side of the fixed pipe. The lower end of the movable pipe is movably sleeved in the fixed pipe; the lower end of the motor reduction mechanism is installed at the upper end of the movable pipe, and a fixed rod is installed at the upper end of the rotating shaft of the motor reduction mechanism. The thickness detection circuit includes a laser ranging module and a resistor, and the laser ranging module is installed at the side end of the fixed rod; the single-chip microcomputer module, the GPRS module, the storage battery, the resistor of the thickness detection circuit, the detection circuit, the time control circuit, and the anti-displacement monitoring circuit are installed in an element box, and the element box and the solar panel are installed on the movable pipe; the signal output end of the single-chip microcomputer module is electrically connected to the signal input end of the GPRS module, the power output end of the time control circuit is electrically connected to the power input end of the motor reduction mechanism, and the signal output ends of the thickness detection circuit and the temperature detection circuit are electrically connected to the signal input end of the single-chip microcomputer module.

[0007] Further, a plurality of fixed rods are installed at intervals on the outer side of the lower end of the base. The base is inserted into the ground of the monitoring area through the fixed rods, and the detection switch is a normally closed contact button type power switch.

[0008] Further, in the thickness detection circuit, the detection head of the laser ranging module faces the ground, and the signal output end of the laser ranging module is connected to one end of the resistor.

[0009] Further, the temperature detection circuit includes a thermistor and a resistor that are electrically connected, and one end of the thermistor is connected to one end of the resistor.

[0010] Further, the time control circuit includes two sets of time control switches which are electrically connected, and both ends of the power input of the two sets of time control switches are respectively connected.

[0011] Further, the anti-displacement monitoring circuit includes a resistor, a triode, and a short message module which are electrically connected, and is connected to a detection switch. One end of the detection switch is connected to the positive power input terminal of the short message module, the other end of the detection switch is connected to one end of the resistor, the other end of the resistor is connected to the base of the triode, the emitter of the triode is connected to the negative power input terminal of the short message module, and the collector of the triode is connected to the signal input terminal of the short message module.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows: (1) The present novelty can be used in multiple sets and are respectively installed in multiple areas of the construction road surface (after the construction is completed, the present novelty is taken away, and then the road surface with a smaller area at this place is supplemented and laid), which can minimize the number of times for the detection personnel to go to the site for detection (for example, only need to go for manual detection after completion); (2) During application, the thickness detection circuit and the temperature detection circuit can transmit the data of the road surface height change and the ambient temperature data during the on-site construction in real time through wireless means. The remote detection personnel can, without going to the site, understand the relevant data on the site through the existing mature Internet of Things data transceiver technology, which brings convenience to the detection personnel and provides technical support for formulating corresponding measures (for example, if the data of the road surface thickness change in the monitoring area per unit time is relatively slow, it means that the construction progress is relatively slow and the working efficiency of the operators is relatively low; on the contrary, it means that the construction progress is relatively fast and the working efficiency of the operators is relatively high; if the on-site temperature is high, the construction speed is relatively slow, which is normal, otherwise it is abnormal), and correspondingly saves the detection cost. Description of the Drawings

[0013] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0014] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present utility model.

[0015] Figure 2 It is a circuit diagram of the present utility model. Detailed Embodiment

[0016] Figure 1 、 2As shown in the figure, a monitoring device for road surface construction includes a motor reduction mechanism M1, a single-chip microcomputer module E3, a GPRS module E4, a storage battery G2, a solar panel G1, and a support mechanism. It also has a thickness detection circuit, a temperature detection circuit 1, a time control circuit 2, and an anti-displacement monitoring circuit 3. The support mechanism includes a base 41, a fixed pipe 42, a movable pipe 43, and a detection switch S1. There is a groove 44 in the middle of the lower end of the base 41, and the detection switch S1 is installed in the groove 44. The fixed pipe 42 is welded to the middle of the upper end of the base 41. A fixed screw rod 45 is installed on the upper right part of the fixed pipe 42 through threads. The lower end of the movable pipe 43 is movably sleeved in the upper end of the fixed pipe 42 and fixed by the manual screw rod 45 (the movable pipe moves up and down in the fixed pipe to adjust the height of the laser ranging module). The middle of the lower end of the housing of the motor reduction mechanism M1 is welded to the upper outer end of the movable pipe 43. A fixed rod 46 is horizontally welded to the upper end of the rotating shaft of the motor reduction mechanism. The thickness detection circuit includes a laser ranging module E2 and a resistor R1. The housing of the laser ranging module E2 is vertically distributed and installed at the lower part of the left front side end of the fixed rod 46 through bolts. The solar panel G1 is installed on the front outer end of the movable pipe 43. The single-chip microcomputer module E3, the GPRS module E4, the storage battery G2, the resistor R1 of the thickness detection circuit, the temperature detection circuit 1, the time control circuit 2, and the anti-displacement monitoring circuit 3 are installed on the circuit board in the component box 5. The component box 5 is installed at the upper end of the movable pipe 43 (behind the solar panel G1).

[0017] Figure 1 、 2As shown in the figure, three conical fixing rods 411 are vertically welded at a certain distance outside the lower end of the base. The base is inserted into the ground in the monitoring area through the fixing rods 411. The detection switch S1 is a normally closed contact button-type micro power switch. When the base 41 is on the ground, the button contacts the ground and its internal contacts are open. When the base 41 is separated from the ground and the button is separated from the ground, its internal contacts are closed. In the thickness detection circuit, the detection head of the laser ranging module E2 faces the ground, and the signal output terminal 3 of the laser ranging module E2 is connected to one end of the resistor R1. The temperature detection circuit includes a thermistor W and a resistor R2 connected by circuit board wiring. One end of the thermistor W is connected to one end of the resistor R2, and the heat receiving surface of the thermistor W is located outside the front end of the component box 5. The time control circuit includes two time control switches E1 and E6 connected by circuit board wiring, and the power input ends 1 and 2 of the two time control switches E1 and E6 are respectively connected. The anti-displacement monitoring circuit includes a resistor R3, a triode Q1, and a short message module E5 connected by circuit board wiring, and is connected to the detection switch S1 through a wire. One end of the detection switch S1 is connected to the positive power input terminal 1 of the short message module E5, the other end of the detection switch S1 is connected to one end of the resistor R3, the other end of the resistor R3 is connected to the base of the triode Q1, the emitter of the triode Q1 is connected to the negative power input terminal 2 of the short message module E5, and the collector of the triode Q1 is connected to the signal input terminal 3 of the short message module E5.

[0018] Figure 1 , 2 As shown in the figure, the two poles of the solar panel G1, the two poles of the storage battery G2, the power input terminals 1 and 2 of the single-chip microcomputer module E3, the power input terminals 1 and 2 of the GPRS module E4, the power input terminals 1 and 2 of the laser ranging module E2 in the thickness detection circuit, the other end of the thermistor W and the other end of the resistor R2 in the temperature detection circuit, the power input terminals 1 and 2 of the time control switch E1 in the time control circuit, and the power input terminals 1 and 2 of the short message module E5 in the anti-displacement monitoring circuit are respectively connected by wires. The signal output terminal of the single-chip microcomputer module E3 and the signal input terminal of the GPRS module E4 are connected by wires. The 3 and 4 pins of the time control switches E1 and E6 and the positive and negative and negative and positive power input terminals of the motor reduction mechanism M1 are respectively connected by wires. The other end of the resistor R1 at the signal output end of the thickness detection circuit, one end of the resistor R2 at the signal output end of the temperature detection circuit, and the signal input terminals 3 and 4 of the single-chip microcomputer module E3 are respectively connected by wires.

[0019] Figure 1 , 2As shown in the figure, this new type can be used in multiple sets and installed in multiple areas of the construction road surface (after the construction is completed, this new type is removed, and then the road surface with a smaller area at this place is supplemented and paved; specifically, the base is inserted into the ground through the fixing rod 411, and the internal contacts of the detection switch S1 are open), which can minimize the number of times of on-site inspections by inspectors (for example, only manual inspections are required after completion). The solar panel G1 generates electrical energy under normal light, charging the battery G2, so there is no need to erect power supply lines on site, which not only saves energy but also makes it more convenient to use. After turning on the main power switch D1, the GPRS module, thickness detection circuit, temperature detection circuit, time control circuit, and anti-displacement monitoring circuit are all powered on and working. After the time control modules E1 and E6 are powered on and working, their pins 3 and 4 will cyclically output power for 10 seconds to the positive and negative and negative and positive power input terminals of the motor reduction mechanism M1. In this way, the motor reduction mechanism M1 (and the wires connected to it have length margins) can drive the laser ranging module E2 to rotate clockwise and counterclockwise by nearly 350 degrees every 10 seconds during operation, and the laser ranging module E2 detects the construction thickness of the ground. After the laser ranging module E2 is powered on and working, when the distance between its detection head and the ground is closer (that is, the materials laid on the ground during construction are relatively more and relatively higher), the voltage signal output from its pin 3 is relatively high, and vice versa. As the thickness of the construction materials on the ground changes, the dynamic voltage signal output from pin 3 of the laser ranging module E2 enters pin 3 of the single-chip microcomputer module E3 after being limited in current and stepped down by the resistor R1. After the temperature detection circuit is powered on and working, when the ambient temperature on site is relatively high, the resistance value of the thermistor W is relatively low, and the voltage division between it and the resistor R2 is low, and the signal voltage entering the signal input terminal 4 of the single-chip microcomputer module E3 is relatively high. When the ambient temperature on site is relatively low, the resistance value of the thermistor W is relatively high, and the voltage division between it and the resistor R2 is high, and the signal voltage entering the signal input terminal 4 of the single-chip microcomputer module E3 is relatively low. The two analog signals input to the single-chip microcomputer module E3 with the change of the construction road surface thickness and the on-site temperature are converted into digital signals and output to the signal input terminal of the GPRS module E4. The GPRS module E4 will transmit the data of the construction thickness and temperature change on site over a long distance. After the remote monitoring personnel receive the corresponding data through a PC or a smart phone, they can intuitively understand the data of the construction thickness change of the on-site ground and the temperature data.

[0020] Figure 1 , 2As shown in the figure, when no one on site attempts to damage the device monitoring function, that is, when the base displacement is not removed, the internal contacts of the detection switch S1 are open. Then, the 3rd pin of the SMS module E5 will not receive a low-level signal, and the SMS module E5 will not transmit the first wireless closing signal. When someone on site attempts to damage the device monitoring function, that is, when the base displacement is removed, the contacts of the detection switch S1 are separated from the ground and its internal contacts are closed. In this way, the 12V power supply will pass through the detection switch S1 and enter the base of the triode Q1 after being limited in current and stepped down by the resistor R3. The triode Q1 conducts and the collector outputs a low level to the signal input terminal of the SMS module E5. Then, the SMS module E5 will send out the first SMS stored internally. After the remote monitoring personnel's mobile phone receives the SMS, they can directly know that someone has damaged the device on site so as to take timely measures. Through the above, in this new application, the data of the road surface height change and the environmental temperature data during on-site construction can be transmitted remotely in a wireless manner. Without going to the site, the remote detection personnel can understand the relevant on-site data (such as whether the thickness of the road surface material laid during road construction meets the requirements) through the existing mature Internet of Things data transceiver technology, which brings convenience to the detection personnel and provides technical support for formulating corresponding measures (for example, if the data of the road surface thickness change in the monitored area within a unit time is relatively slow, it means that the construction progress is relatively slow and the working efficiency of the operators is relatively low; on the contrary, it means that the construction progress is relatively fast and the working efficiency of the operators is relatively high; when the on-site temperature is high, the normal construction speed is relatively slow, and vice versa). And the detection cost is saved accordingly; and when someone damages the monitoring function, it can prompt the relevant personnel to take measures in time. It should be noted that the single-chip microcomputer module collects the analog voltage signals input by one or more sensors (such as the dynamic change voltage signal output by the water pressure sensor along with the water pressure in the pipeline), and converts the signals into digital signals and transmits them remotely through the GPRS module. The remote PC or smart phone receives and displays the relevant data (such as displaying the on-site water pressure signal through numbers or waveforms. In this embodiment, the on-site temperature and ground thickness data are displayed through numbers or waveforms), which is an extremely mature data collection, processing, transmission, reception and processing, and display technology in the existing Internet of Things. This application does not claim any protection for this technical point. What this application protects is the use of the existing mature Internet of Things data transceiver and display technology to realize the monitoring scheme for the thickness and temperature change of road construction.

[0021] Figure 2Among them, the motor reducer M1 is a coaxial motor gear reducer with a power of 20W; the storage battery G2 is a lithium storage battery of 12V / 5Ah; the solar panel G1 is a finished solar panel of 12V / 6W; the triode Q1 is an NPN triode of model 9013; the resistance values of resistors R1, R2, and R3 are 1K, 8K, and 20K respectively; the thermistor W is a negative temperature coefficient thermistor of model NTG103; the SMS module E5 is an SMS alarm module of model GSM DTU SIM800C. The finished SMS alarm module has two power input terminals, pins 1 and 2, and signal input ports, pins 3 - 8. After each signal input port inputs a low-level signal, the finished SMS alarm module will send a text message via the wireless mobile network. There is a text message stored in the SMS alarm module. In this embodiment, the text message "Someone has damaged it" is stored. After the signal input port 3 of the SMS alarm module inputs a low-level signal, the SMS alarm module can send a text message; the time control switches E1 and E6 are finished time control switches of the brand Delixi and model KG316T. It has two power input terminals, two power output terminals, and seven setting buttons. By operating multiple buttons respectively, the time when the power is output from the two power output terminals can be set; the GPRS module E4 is of model ZLAN8100. There is an RS485 data input port (two power input terminals, one signal input terminal) on the finished GPRS module; the main control chip of the single-chip microcomputer module E3 is of model STC12C5A60S2; the laser ranging module E2 is a laser ranging sensor of the brand RUIXING and model KLH-03T-20hz. It has two power input terminals and one signal output terminal. The closer the detection head is to the object, the higher the voltage signal output from the signal output terminal, and vice versa.

[0022] The above has shown and described the basic principles, main features and advantages of the present invention. For those skilled in the art, it is obvious that the present invention is limited to the details of the above exemplary embodiments, and without departing from the spirit or basic features of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes falling within the meaning and scope of the equivalent elements of the claims in the present invention.

[0023] In addition, it should be understood that although this specification is described according to the embodiments, not each embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in the embodiments can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A monitoring device for road construction, comprising a motor reduction mechanism, a single chip microcomputer module, a GPRS module, a battery, a solar cell panel, and a supporting mechanism, characterized in that: It also has a thickness detection circuit, a temperature detection circuit, a timing control circuit and an anti-displacement monitoring circuit; the supporting mechanism includes a base, a fixed tube, a movable tube and a detection switch, the lower end of the base has a groove, the detection switch is installed in the groove, the fixed tube is installed at the upper end of the base, the side of the fixed tube is installed with a fixed screw rod, and the lower end of the movable tube is movably sleeved in the fixed tube; the lower end of the motor reduction mechanism is installed at the upper end of the movable tube, and the upper end of the rotating shaft of the motor reduction mechanism is installed with a fixed rod. The thickness detection circuit includes a laser ranging module and a resistor, and the laser ranging module is installed at the side end of the fixed rod; the single-chip computer module, GPRS module, battery, resistor of the thickness detection circuit, detection circuit, timing control circuit and anti-displacement monitoring circuit are installed in the component box, and the component box and solar cell panel are installed on the movable tube; the signal output end of the single-chip computer module is electrically connected to the signal input end of the GPRS module, the power output end of the timing control circuit is electrically connected to the power input end of the motor reduction mechanism, and the signal output end of the thickness detection circuit and the temperature detection circuit is electrically connected to the signal input end of the single-chip computer module.

2. A road construction monitoring device according to claim 1, characterized in that: A plurality of fixing rods are installed at intervals on the outer side of the lower end of the base, and the base is inserted under the ground of the monitoring area through the fixing rods. The detection switch is a normally closed contact push-button power switch.

3. A road construction monitoring device according to claim 1, characterized in that: In the thickness detection circuit, the detection head of the laser ranging module faces the ground, and the signal output end of the laser ranging module is connected to one end of the resistor.

4. A road construction monitoring device according to claim 1, characterized in that: The temperature detection circuit includes a thermistor and a resistor which are electrically connected, and one end of the thermistor is connected to one end of the resistor.

5. A road construction monitoring device according to claim 1, characterized in that: The time control circuit comprises two sets of time control switches which are electrically connected, and two ends of power input of the two sets of time control switches are respectively connected.

6. A road construction monitoring device according to claim 1, characterized in that: The anti-displacement monitoring circuit includes an electrically connected resistor, a transistor, and a text message module, and is connected to a detection switch. One end of the detection switch is connected to the positive power input end of the text message module, the other end of the detection switch is connected to one end of the resistor, the other end of the resistor is connected to the base of the transistor, the emitter of the transistor is connected to the negative power input end of the text message module, and the collector of the transistor is connected to the signal input end of the text message module.

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